CN104669097B - Grinding process - Google Patents
Grinding process Download PDFInfo
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- CN104669097B CN104669097B CN201410687166.5A CN201410687166A CN104669097B CN 104669097 B CN104669097 B CN 104669097B CN 201410687166 A CN201410687166 A CN 201410687166A CN 104669097 B CN104669097 B CN 104669097B
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- machined object
- abrasive media
- resin
- epithelium
- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
- B24B31/033—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels having several rotating or tumbling drums with parallel axes
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention provides a kind of grinding process.Roller trough will be packed into containing the block of machined object and abrasive media and carry out barreling.By the way that above-mentioned abrasive media is formed as the structure containing resin, to make the resin component contained by abrasive media be attached to the surface of machined object while grinding machined object, and the epithelium of extremely thin resin is formed.By the grinding process, very high antirust function can be assigned, is affected without the dimensional accuracy to machined object.
Description
Technical field
Embodiments of the present invention relate to assign surface painting of the machined object antirust function without being used in machined object
The grinding process of the dry type of the antirust agent of upper medicament.
Background technique
The surface treatment that barreling is widely used in machined object is (deflashing, round corner machining, surface roughness adjustment, smooth
Finishing, polishing, mirror finishing, film layer removing etc.).In barreling, by flowing the block (mass) for being packed into roller trough
Dynamicization, to carry out the grinding of machined object.Here, block refers to that by the article of loading roller trough (be processed in dry type
Object and abrasive media etc.) constitute substance.For tumbling apparatus, the well-known rotation for having the bottom for making to be set to roller trough
The type for spiraling then making the running barrel device of the type of block liquidation, making roller trough rotation-revolution and make block liquidation
Centrifugal drum device, vibrate roller trough and make the vibrator device of the type of block liquidation etc..
In the case where the machined object of abrasive metal system, there is the passage with the time after grinding, in machined object
Surface lead to the problem of rust.Therefore, in the barreling of dry type, the place that machined object after grinding coats antirust agent is carried out
Reason.In the barreling of wet type, ground by adding the mixture containing antirust agent, to coat antirust in machined object
Agent.Following barreling system is recorded in following patent documents 1: the machined object being ground by the rotation of roller trough is soaked
Thus stain prevents from generating rust in machined object in antirust solution.
Antirust agent is coated on the surface of the machined object by the processing of system documented by patent document 1.Generally for example
Use acylate, diethanol amine, medicament as triethanolamine as antirust agent.
Patent document 1: Japanese Unexamined Patent Publication 2002-254290 bulletin
In the case where stating medicament in use, before being assembled in product by subsequent handling, needs to be arranged cleaning and added
Process of the work object to remove antirust agent.If, there is the waste water because generating by cleaning in the additional process for removing the antirust agent
Processing, working hour involved in cleaning increase etc. caused by the manufacturing cost of product the problems such as increasing.
Summary of the invention
Therefore, a side of the invention is to provide a kind of grinding process, is able to carry out barreling and to machined object reality
Antirust treatment is applied, the antirust agent of medicament is coated on the surface without being used in machined object.
A side of the invention provides a kind of grinding process, will flow containing the block of machined object and abrasive media
Change to which with dry grinding machined object, which has: block is packed into process, and being fitted into process in the block will be above-mentioned
Block is packed into roller trough；And liquidation process, the liquidation in above-mentioned roller trough of above-mentioned block is made in the liquidation process
To grind machined object using above-mentioned abrasive media, and epithelium is formed to assign antirust function on the surface of machined object
Energy.According to the grinding process of a side, machined object is ground in liquidation process, and is formed on the surface of machined object
Epithelium.The oxygen and contact with moisture in surface and air due to interfering machined object by the epithelium, so can prevent
The surface of machined object generates rust.In the grinding process, due to the antirust agent for not needing to use medicament as in the past, so
It can be in the not set process for removing antirust agent of subsequent handling.In addition, in a mode, it, can in above-mentioned liquidation process
To form the above-mentioned epithelium with a thickness of 0.1~10.0nm.Extremely thin epithelium is formed, in this way so as to obtain antirust effect
Fruit affects without the dimensional accuracy to machined object.
It is also configured in a mode, in above-mentioned liquidation process, is formed using resin is dispersed by abrasive grain
The abrasive media of structure grind machined object, and using the above-mentioned resin contained by above-mentioned abrasive media in machined object
Surface forms the epithelium of the resin to assign antirust function.According to the method, only by by abrasive media and machined object
It is packed into roller trough to be ground, it will be able to assign machined object antirust function.
It is also configured in a mode, above-mentioned block further comprises as powder or the antirust function of formed body is assigned
Give material.Also, in above-mentioned liquidation process, machined object is ground using above-mentioned abrasive media, and utilize above-mentioned antirust
It is anti-to assign that function assigns the epithelium that material forms the ingredient of composition antirust function imparting material on the surface of machined object
Rust function.In this mode, it is formed since material can be assigned by antirust function for assigning machined object antirust function
Epithelium, so the material of abrasive media and being not particularly limited.That is, since required finishing stage can be cooperated freely to select
Abrasive media is selected, so can be carried out efficiently barreling.If especially by above-mentioned antirust function imparting material be configured to resin,
Fatty acid or it is therein at least any one be main component, then can easily be formed on the surface of machined object extremely thin
Epithelium, therefore can easily assign machined object antirust function.
In the case where above-mentioned block also contains and assigns material as the antirust function of powder or formed body, above-mentioned barreling
Method can be also equipped with forms epithelium on the surface of abrasive media using above-mentioned antirust function imparting material non-wettedly
Thus the process for assigning the surface lubrication of above-mentioned abrasive media.Since the epithelium by being formed on the surface of abrasive media improves
The lubricity of abrasive media, so abrasive media can be weakened to machined object when making block liquidation in roller trough
Impact force.That is, according to the grinding process machined object antirust function can be assigned, and can be to the finishing of machined object
Degree (surface roughness, Adjusting Shape etc.) is adjusted.
In addition, being also configured in a mode, above-mentioned block also includes abrasive grain, in above-mentioned liquidation process,
Using above-mentioned abrasive media and above-mentioned abrasive finishing process machined object, and material is assigned using above-mentioned antirust function and is being processed
The surface of object forms the epithelium that the main component of material is assigned as the antirust function.Abrasive power is adjusted by abrasive grain,
So as to be adjusted to finishing stage.
In addition, being also configured in a mode, above-mentioned abrasive media or as main component above-mentioned with resin
Antirust function assigns the above-mentioned resin in material using nylon as main component.If resin, then machined object antirust can be assigned
Function, if but using nylon as main component, extra high antirust function can be assigned.In addition, can inexpensively assign anti-
Rust function.
A side or each mode through the invention can carry out grinding and the antirust function of machined object simultaneously
It assigns.In addition, due to not as in the past by the antirust agent of medicament be coated on machined object surface, so subsequent handling not
Need to remove the process of antirust agent.
Detailed description of the invention
Fig. 1 is the schematic diagram for illustrating centrifugal barrel polishing device used in embodiments of the present invention.
Fig. 2 is the process for indicating an example of manufacturing procedure for machined object used in embodiments of the present invention
Figure.
Fig. 3 is the flow chart for indicating the grinding process of an embodiment.
Fig. 4 is an example (embodiment 1) of the analysis result on the surface of the machined object in first embodiment.Fig. 4
It (A) is the spectrum resolution of anion as a result, Fig. 4 (B) is the result of map analysis.
Fig. 5 is an example of the analysis result on the surface of the machined object in second embodiment.Fig. 5 (A) is to implement
The spectrum resolution of the cation of example 20 and rough is as a result, Fig. 5 (B) is the result of the map analysis of embodiment 20.
The explanation of appended drawing reference:
10... centrifugal barrel polishing device；11... roller trough；12... roller slot shell；The 12a... axis of rotation；13... turntable
(revolution disk)；13a, 13b... bearing；14... hollow shaft；15... driving mechanism；15a... drive motor；15b... motor
Belt wheel；15c... revolution belt wheel；15d... drives band；16... follower；16a... driving pulley；16b... driven pulley；
16c... driven belt.
Specific embodiment
It is described with reference to an example of the invention.It in the following description, will be by centrifugal barrel polishing device with dry type
Grind SUJ2 material (JIS (Japanese Industrial Standards) G4805:2008 of the machined object as iron series
Regulation) the case where be illustrated as an example.In addition, unless otherwise indicated, the direction up and down in explanation refers in figure
Direction.
Fig. 1 is the schematic diagram of the tumbling apparatus 10 of present embodiment.Tumbling apparatus 10 shown in FIG. 1 is centrifugal roll mill dress
Set, and have: 4 roller troughs 11, they are packed into for block；4 roller slot shells 12, their sides to load and unload freely respectively
Formula is fixed with roller trough 11；A pair of of turntable 13 (revolution disk), their resting barrel slot shells 12 in a manner of it can rotate；It is public
Shaft 14；Above-mentioned hollow shaft 14 rotates turntable 13 as axle center by driving mechanism 15；Follower 16 is driven in and turns
The rotation of platform 13 rotates roller slot shell 12.In addition, for convenience, only showing 3 roller troughs 11 and 3 rollings in Fig. 1
Cylinder slot shell 12.
Roller trough 11 is the hollow container for dividing the space with octagonal section shape inside it, and by upper
The roller groove body of the tubular of surface opening is constituted with the roller slot cover that can be covered the opening portion and seal internal space.
Roller slot shell 12 has axis of rotation 12a at both ends respectively.Roller slot shell 12 is configured to inner sealing
Roller trough 11 be fixed on roller slot shell 12 in a manner of loading and unloading freely relative to roller slot shell 12.
A pair of of turntable 13 has disc-shape, and is arranged in a manner of opposed facing.(make in the center of each turntable 13
For the center of the side of circular flat) it is provided with the first bearing 13a that hollow shaft 14 can be fitted into a manner of it can rotate.
In each turntable 13,4 second bearing 13b have been disposed at equal intervals along its circumferential direction.Above-mentioned second bearing 13b and 4 roller troughs
The axis of rotation 12a of shell 12 is separately fitted into, and is that can rotate by each axis of rotation 12a bearing.Turntable 13 is via
One bearing 13a is supported on the hollow shaft 14 fixed in bracing strut 14a in a manner of it can rotate respectively.In addition, roller slot shell
12 are configured in a manner of sandwiching each turntable 13 via axis of rotation 12a and second bearing 13b.According to this structure, roller pot shell
Body 12 at equal intervals, and can configure between a pair of of turntable 13 by relative to turntable 13 in a manner of relative rotation.
Driving mechanism 15 by drive motor 15a, the rotary shaft for being fixed on above-mentioned drive motor 15a motor pulley 15b, set
Be placed in the revolution belt wheel 15c of the periphery of the above-mentioned turntable (in Fig. 1 for left side) of a side and be set up in motor pulley 15b with
Driving band 15d between revolution belt wheel 15c is constituted.
Follower 16 is by the driven pulley that is fixed on the driving pulley 16a of the axis of rotation, is fixed on above-mentioned axis of rotation 12a
16b and the driven belt 16c for being set up in above-mentioned driving pulley 16a and above-mentioned driven pulley 16b are constituted.
If making drive motor 15a actuation, turntable 13 is rotated centered on hollow shaft 14.Along with the rotation of the turntable 13
Turn, being fixed on the roller trough 11 of roller slot shell 12 with hollow shaft 14 is that (revolution) is circled round in axle center.In addition, roller trough 11 by from
Motivation structure 16 rotates (rotation) around the direction opposite with the direction of rotation of turntable 13 using axis of rotation 12a as axle center.
As described above, roller trough 11 is able to carry out the rotation of the rotation based on itself and the rotation based on turntable 13
Convolution.If making 11 rotation-revolution of roller trough (planetary motion), the block containing machined object and abrasive media becomes flowing
State.As a result, machined object by the mutual contact of the contact with abrasive media, machined object, with the wall surface of roller trough 11
It contacts and is ground.
As machined object be iron series when an example, the parts of bearings being made of SUJ2 material is shown in FIG. 2
General manufacturing procedure.In manufacturing procedure shown in Fig. 2, by blocks machining be parts of bearings shape after
(S01), implement heat treatment (S02), carry out gyro-finishing (adjustment of surface roughness) (S03) as machined object.It connects
Get off, cleans machined object (S04).If placing machined object after cleaning machined object, exist as time goes by
The surface of machined object generates rust.In particular, red rust is higher to the erosion of machined object, therefore along with the generation of red rust,
The problem of deteriorated dimensional accuracy or strength reduction of machined object, generates.Therefore, in the conventional method, implement antirust treatment
(S05), so that rust will not be generated during until being assembled in product.The antirust treatment passes through coating antirust agent (medicament)
Aqueous solution or machined object is dipped in the aqueous solution of antirust agent, thus the surface of machined object coat antirust agent come into
Row.Machined object carries out the inspection of size etc. before being filled with as bearing group.At this point, can become and survey if being attached with antirust agent
Measuring device generates the reason of failure, or has an impact to the reliability of measurement result.Therefore, in cleaning machined object to remove
After the antirust agent of attachment (S06), it is assembled (S07) as bearing, and bearing is completed.
When carrying out removing cleaning (S06) of antirust agent, a large amount of waste water is generated.Due in order to handle the waste water, product
Manufacturing cost rise, environment is impacted, so seeking a kind of manufacturing method of process for not needing cleaning anti-rust agent.Through
Wholwe-hearted research is crossed, as a result, machined object can be ground and assign the grinding process of antirust function by having invented one kind.By
This, can be realized the manufacturer for being not needed upon the antirust treatment (S05) of antirust agent and removing the process (S06) of the antirust agent
Method.The grinding process will be described in detail below.
(first embodiment)
Hereinafter, the grinding process to first embodiment is illustrated.Fig. 3 is the grinding process for indicating first embodiment
Flow chart.In the grinding process, firstly, by roller is packed into comprising the block of metal machined object and abrasive media
In slot 11 (process S21, block are packed into process).The abrasive media is the resin medium containing resin.Next, by making block
The liquidation in roller trough, to be ground (process S22, liquidation process) to machined object using abrasive media.At this
It in process S22, is collided by abrasive media and machined object, to grind machined object.In addition, passing through abrasive media institute
The resin contained is attached to the surface of machined object, to be formed with resin epithelium as main component.
It, can be from thermoplastic resin (such as polyamide, polystyrene, poly- carbonic acid as the resin contained by abrasive media
Ester, ABS, polypropylene, polyamide, acrylonitrile styrene etc.), heat-curing resin (such as phenolic resin, unsaturated polyester (UP) tree
Rouge, polyurethane resin, epoxy resin, Lauxite etc.) in properly select.Wherein, due to the Buddhist nun as polyamide resin
Imperial resin is the stronger material of polarity, so if forming the epithelium of nylon resin, integral waterproofing on the surface of machined object
It improves.As a result, good rust-proof effect can be obtained.In addition, since nylon resin is cheap material, so by making
Abrasive media contains nylon resin, can reduce cost and improves rust-proof effect.
It, can also be by being dispersed with abrasive grain in order to improve grainding capacity although abrasive media can be only made of resin
Resin constitute.It is able to use aluminium oxide, silica gel, silicon carbide, iron oxide, silica, zircon, chromium oxide, diamond, diamond dust etc.
The powder or grain of well known material are as abrasive grain.In the present embodiment, the powder of aluminium oxide is made to be scattered in resin and be formed
Abrasive media.
In addition, abrasive power is insufficient or can not obtain the effect for dispersing abrasive grain if the undersized of abrasive grain.If abrasive grain
Granularity it is excessive, then by resin generate retentivity it is weaker, abrasive grain is easy to fall off in grinding, therefore with the stream of milling time
It dies, the grainding capacity of abrasive media significantly reduces.The granularity of abrasive grain when accordingly, using the resin for being dispersed with abrasive grain can be 35
μm~71 μm.
In addition, the containing ratio of abrasive grain is by considering grainding capacity, the intensity of abrasive media, resin required by abrasive media
It is properly selected to the adhesion amount etc. of machined object.If the amount of abrasive grain is very few, grainding capacity is insufficient, or can not obtain
The effect for dispersing abrasive grain.If the containing ratio of abrasive grain is excessive, resin is opposite to tail off, thus resin be difficult to be attached to it is processed
The strength reduction of object or abrasive media.The containing ratio of abrasive grain when accordingly, using the resin for being dispersed with abrasive grain is relative to grinding
Medium can be 65 mass of mass %~85 % (the preferably 70 mass % of mass %~80, more preferably 70 mass %~75
Quality %).
The abrasive media of present embodiment has used following medium, that is, by the pellet of resin material (nylon) with, with opposite
Meet # as defined in JIS R6001:1998 in the granularity integrally as the mode weighing of the range of 65 mass of mass %~85 %
The abrasive grain of the alumina series of 320 (d50=46 μm of average grain diameters), which heats, to be kneaded, and so that abrasive grain is scattered in resin, later, is passed through injection molding
Molding machine is shaped to triangular prism.
If machined object and the abrasive media are packed into roller trough 11, and make 10 actuation of tumbling apparatus, then block is rolling
The inside of cylinder slot 11 becomes flow regime.Since abrasive media is contacted with machined object, so passing through the table for being located at abrasive media
The abrasive grain in face carries out the grinding of machined object.In addition, being contacted by abrasive media with machined object, thus the tree of abrasive media
Rouge is attached to the surface of machined object.Inventor speculate attachment phenomenon result from following (1), in (2) any one of at least.
(1) because of the collision energy of abrasive media, contact point locally becomes high temperature.Because of the heat, the resin of abrasive media is molten
Melt, which is attached to the surface of machined object.
(2) when abrasive media and machined object generate friction, the resin of abrasive media is attached to processed by friction
The surface of object.
Since oxygen, the moisture in the constituent material and air of machined object react, thus on the surface of machined object
It generates rust, continue to get rusty.According to the grinding process of above embodiment, since resin is attached to the surface of machined object, so
The chance that its surface is directly exposed to outside air is reduced.Thereby, it is possible to inhibit to generate rust on the surface of machined object.In order into
One step fully prevents rust from generating, and can be formed in a manner of the entire surface for covering machined object resin layer (epithelium).Here,
If the thickness of epithelium is excessively thin, it is difficult to fully assign machined object antirust function.On the contrary, if epithelium is blocked up, machined object
Deteriorated dimensional accuracy, or because epithelial surfaces roughness becomes larger, so that quality reduces.In addition, thickeing along with epithelium, with quilt
The clinging force of machining object dies down, to be easy to produce removing.Therefore, the thickness of the epithelium of the resin formed on the surface of machined object
Degree can be 0.1~10.0nm (preferably 0.2~5.0nm, more preferably 0.2~2.0nm).
(second embodiment)
Next, machined object antirust function will be assigned and carry out the other way of barreling, as second embodiment into
Row explanation.In the following description, the point being different from the first embodiment is illustrated.
It is identical as the grinding process of first embodiment in the grinding process of present embodiment, firstly, metal will be contained
In the machined object of system and the block insertion roller trough 11 of abrasive media, next, by flowing block in roller trough
Change, to grind machined object by abrasive media.But it for the grinding process of present embodiment, is removed in block and contains quilt
In terms of also assigning material containing antirust function other than machining object and abrasive media, not with the grinding process of first embodiment
Together.In addition, in the present embodiment, abrasive media can also not contain resin.In the grinding process of present embodiment, pass through
The abrasive media of flowing collides with machined object, to grind machined object.In addition, assigning material by constituting antirust function
The ingredient of material is attached to the surface of machined object, to form the epithelium of the ingredient.
Antirust function assigns material and is also configured to any one of the salt with resin, sodium soap and sodium soap
For main component.Machined object antirust function is assigned due to assigning material by antirust function, so the material of abrasive media is simultaneously
It is not particularly limited.For example, can be suitably from the abrasive media being only made of resin or the resin by being dispersed with abrasive grain is constituted
(resin medium), abrasive grain and clayey are kneaded fire made of abrasive media (firing medium) or abrasive grain is sintered each other and
At abrasive media (sintered medium) etc pottery abrasive media (ceramic dielectric), abrasive media made of metal
It is selected in (metal medium) etc., as the abrasive media of present embodiment.In the grinding process of present embodiment, due to energy
The material of the required finishing stage selection abrasive media of enough cooperations, so higher than first embodiment versatility.In addition,
It is able to use the abrasive media (resin medium) of first embodiment, make the formation of the epithelium based on resin medium and is based on antirust
Function assigns the formation combination of the epithelium of material.
Due to antirust function assign material main component be resin when it is identical with first embodiment, can be processed
The surface of object forms the epithelium of the resin, so machined object antirust function can be assigned by the epithelium.As antirust function
The resin for assigning material and using is identical with first embodiment, can be from thermoplastic resin, heat-curing resin suitably
Selection.Nylon resin can be selected as resin according to reason same as the first embodiment.
Antirust function assign material main component be fatty acid or fatty acid salt the case where with use using resin as
The case where antirust function imparting material of main component, is compared, and higher rust-proof effect can be obtained.Although its reason is simultaneously unknown
Really, it but is speculated as being formed with the epithelium finer and close than the epithelium of resin.As antirust function assign material main component be
The example of the case where fatty acid, has enumerated lauric acid, oleic acid etc..In addition, as antirust function assign material it is main at
The example for the case where being divided into fatty acid salt, enumerated the fatty acid metal salts such as sodium soap, fatty acid magnesium, fatty acid calcium,
Fatty acid potassium etc..In above-mentioned fatty acid and fatty acid salt, especially sodium soap can more inexpensively assign machined object
Higher antirust function.In addition, as use sodium soap as the fatty acid in the sodium soap in the case where fatty acid salt,
Such as butyric acid, caproic acid, octanoic acid, capric acid, lauric acid, myristic acid, palmitinic acid, stearic acid, oleic acid, linoleic acid, flax are enumerated
Acid, ricinoleic acid (Ricinoleic Acid) etc..Above-mentioned fatty acid can be single, be also possible to comprising two or more
Mixture.
Antirust function assigns the powder that material may be the size formed body (particle) smaller than abrasive media or resin
Any one of.In the case where it is formed body that antirust function, which assigns material, the table of machined object can be made by the formed body
Face more smooths, while being capable of forming the epithelium for constituting the ingredient of the formed body.If the formed body is relative to abrasive media
It is oversized, then hinder the grinding based on abrasive media.On the contrary, if undersized, since formed body is contacted with machined object
Chance reduce, so being difficult to give the sufficient antirust function of machined object.Therefore, the size of formed body can be side or straight
Diameter is smaller than abrasive media, and the volume of formed body is 1/5~2/3 relative to abrasive media.
In the case where it is powder that antirust function, which assigns material, when abrasive media and machined object contact, by the powder
The surface of machined object is pressed on, thus a part melting, as a result, the ingredient for constituting antirust function imparting material is attached to
The surface of machined object forms epithelium.But it if the partial size of powder is excessive or too small, is difficult to form epithelium.If excessive,
Since the reduction of fusing point is smaller, so the effect as powder can not be obtained, if too small, the chance contacted with machined object subtracts
It is few.The partial size of powder can be selected from 50~100 μm (average grain diameter: d50) of range.
Even if in addition, antirust function assign material be any one of formed body, powder in the case where, if relative to grinding
The charge weight of grinding media is excessive, then hinders the grinding based on abrasive media, if very few, since antirust function assigns material and quilt
The chance of machining object contact is reduced, so can not assign machined object sufficient antirust function.For example, assigning material in antirust function
In the case that material is formed body, for the charge weight of the formed body relative to abrasive media, the volume of appearance can be 1/5~1/2.
In addition, further abrasive grain can also be filled in addition to machined object, abrasive media and antirust function assign material
Enter roller trough and carries out barreling.At this point, machined object can be also ground due to the abrasive grain by being packed into roller trough, so can be into
The adjustment of row finishing stage, using the abrasive media weaker with the impact force of machined object (such as the specific gravity such as plant compared with
The softer abrasive media in low abrasive media, surface) when can enhance abrasive power by abrasive grain.In addition, in machined object
In the case where three-dimensional shape, corner can also be ground well.
The granularity and material for being packed into the abrasive grain of roller trough can suitably be selected according to finishing stage.Abrasive grain
Granularity can for example be selected from 18 μm~25 μm.In addition, material for example enumerated aluminium oxide, silica gel, silicon carbide, iron oxide,
Silica, zircon, chromium oxide, diamond, diamond dust etc..
In addition, if the charge weight of abrasive grain is few the effect that the abrasive power based on abrasive grain improves can not be obtained, if the dress of abrasive grain
Enter that amount is more, then interferes the grinding based on abrasive media.The charge weight of abrasive grain can become machined object, grinding for the volume of appearance
Medium and antirust function assign 0.1~3.0% (preferably 0.1~2.0%) of the volume of the appearance of material.
(embodiment)
Next, result of the explanation by the grinding of the grinding process of first embodiment and second embodiment.It will be by
Machining object (diameter 6mm × height 8mm SUJ2 material or SS400 material) and abrasive media are respectively charged into centrifugal tumbling mill
4 roller troughs of (Xindong Industry Co's system: EC-2).The abrasive media described below used.
Abrasive media A: what the nylon resin by being dispersed with the abrasive grain of aluminum oxide was formed is the triangular prism shape of 7mm on one side
Abrasive media.
Abrasive media B: only by nylon resin formed on one side for 7mm triangular prism shape abrasive media.
Abrasive media C: what the polystyrene by being dispersed with abrasive grain was formed is on one side the grinding medium of the triangular prism shape of 7mm
Matter.
Abrasive media D: what the polycarbonate by being dispersed with the abrasive grain of aluminum oxide was formed is the triangular prism shape of 7mm on one side
Abrasive media.
Abrasive media E: what the ABS resin by being dispersed with the abrasive grain of aluminum oxide was formed is the triangular prism shape of 7mm on one side
Abrasive media.
Abrasive media F: sintered medium (Xindong Industry Co's system: V7-EG 10 × 7)
Abrasive media G: it fires medium (Xindong Industry Co's system: AFT 10 × 7)
In addition, being also charged with antirust function according to experiment condition and assigning material and abrasive grain (Xindong Industry Co
System: WA#800).The antirust function described below used assigns material.
Antirust function assigns materials A: the powder (average grain diameter: 250 μm) of nylon resin
Antirust function assigns material B: the formed body (7mm × 7mm × 7mm) of nylon resin
Antirust function assigns material C: the powder (average particle diameter: 250 μm) of sodium soap
Antirust function assigns material D: the formed body (7mm × 7mm × 7mm) of sodium soap
The centrifugal tumbling mill actuation stipulated time is set to grind machined object.Moreover, selection 5 are added from what roller trough was taken out
Work object, investment stir the surface of 30 seconds cleaning machined objects in the sink of water, then pass through drying machine (Tanaka Giken Co., Ltd
System: TB-18H) with 100 DEG C of dryings.Then, the evaluation and antirust evaluation of evaluation, the grinding of epithelium are carried out.
The evaluation of epithelium carries out spectrum analysis by TOF-SIMS (ULVAC-PHI Co. Ltd. system: TRIFT 5)
(spectrum analysis) and surface analysis (surface analysis) (mapping (mapping)), and have rated whether there is or not
The type of epithelium and epithelium.
In addition, the thickness of epithelium will be by that will carry out SiO using the value that XPS (x-ray photoelectron optical spectroscopy) is measured2Conversion
And it calculates.Specific measurement method is as described below.
Using argon ion as light source, the surface for the machined object for being formed with epithelium is sputtered, and passes through XPS analysis
The ion to fly out.If the sputtering raste for covering ingredient is set as r, and the time or machined object that ingredient can not detect will be covered
Time for being detected of substance be set as sputtering time t, then by d=r × t calculate covering ingredient thickness that is, sputtering it is deep
Spend d.Here, in the case where measuring sputtering raste r is not known substance, Standard testing agent that is, SiO are generally used2Sputtering raste
Sputter depth d is calculated, and as the sputter depth of epithelium.
Since the sputtering raste of the covering ingredient of the present embodiment is not known, so as described above, SiO will be used2's
Thickness of the calculated sputter depth of sputtering raste as epithelium.
The evaluation of grinding is measured by surface roughness meter (Tokyo Precision Co., Ltd system: Surfcom1500DX)
The surface roughness Ra (JIS B6001:1994 regulation) of machined object after drying calculates its average value, and by the value and not
The surface roughness of processed goods compares and is evaluated.
The evaluation of antirust, which passes through, is placed in the constant temperature and humidity cabinet kept in defined environment for the machined object after drying,
The generation of rust is observed to be evaluated.The environment in library is remained into temperature specifically, being placed in via the pallet of resin
The constant temperature and humidity cabinet (nanmu this chemical conversion Co. Ltd. system: TH403HE) of 49 DEG C of degree, humidity 95%.Lead within every 24 hours after 72 hours
It crosses microscope (Co., Ltd.'s HiROX system: KH3000) and observes the sample, observe by visual observation and the generation of rust 15 is commented
Valence.Evaluation criteria is as described below.
Zero ... does not confirm rust.
Although A... observing rust, size is all less than 0.5mm.
× ... observe the rust of 0.5mm or more.
Processing conditions in Examples 1 to 22 and Comparative Examples 1 and 2 is according to such shown in table 1.It is shown in table 1 and passes through reality
Apply the evaluation result for the machined object that example 1~22 and Comparative Examples 1 and 2 obtain." granularity " expression in table 1 is scattered in resin
The granularity of abrasive grain, " containing ratio " indicate containing ratio (matter of the abrasive grain relative to abrasive media in the abrasive media containing resin
Measure %).
[table 1]
(1) evaluation of epithelium
Using the abrasive media containing resin ground in the case where and be packed into antirust function assign material into
In the case where row grinding, the epithelium (Examples 1 to 2 2) of 0.1nm~10.0nm is formed on the surface of machined object.It is another
Aspect is not formed in the case where only being ground by ceramic dielectric as Comparative Examples 1 and 2 on the surface of machined object
Epithelium.Judge according to the above results, by the grinding process of embodiment, can be formed on the surface of machined object extremely thin
Epithelium.
As an example of the evaluation result in first embodiment, the analysis knot of embodiment 1 is shown in FIG. 4
Fruit.Fig. 4 (A) indicates the spectrum resolution result of the anion on machined object surface.It is 17,26,42,80 at mass-to-charge ratio (m/z)
In the case of (zero position of the figure), detect molecular ion peak.They, which are shown respectively, detects OH-Ion, CN-Ion, CNO-From
Son, SO3 2-Ion.Wherein, CN-Ion and CNO-Ion is the ion generated by nylon.OH as other ions-From
Son is existing general substance in air, SO3 2-Ion is the substance for coming from roller trough.Fig. 4 (B) is the table to machined object
Face has carried out the result of surface analysis (mapping).White or grey part indicates to detect the ion as object.It is as shown in the drawing that
Sample shows CN-Ion and CNO-Ion is present in the case where entire surface of machined object.Judge according to the above results
Out, if the grinding process by first embodiment is ground, the epithelium of resin is formed on the surface of machined object.
In addition, an example as the evaluation result in second embodiment, is shown in FIG. 5 point of embodiment 20
Analyse result.Fig. 5 (A) indicates the spectrum resolution result of the cation of machined object.In order to compare, unprocessed quilt is shown in lower section
The Spectroscopic analysis results of machining object.It is 101,105,111,115,121,128 in mass-to-charge ratio in unprocessed machined object
In the case of (location A of the figure), detect molecular ion peak, but in the machined object of embodiment 20, in above-mentioned mass-to-charge ratio,
The peak value for not detecting molecular ion, in the case where mass-to-charge ratio is 104,113,117,127,129 (zero position of the figure)
Detect molecular ion peak.The mass-to-charge ratio indicates to come from the ingredient of the sodium soap used as antirust function imparting material.
This passes through loading antirust function imparting material as the result is shown and is ground, to form the antirust function on the surface of machined object
Assign the epithelium of material.Fig. 5 (B) is to have carried out the result of surface analysis to the surface of machined object.The figure detects that mass-to-charge ratio is
127 ion.The entire surface that the ion is present in machined object is shown as shown in the figure.Judge according to the above results
Out, if the grinding process by second embodiment carries out barreling, antirust function is formed on the surface of machined object and assigns material
The epithelium of material.
(2) evaluation ground
The surface roughness Ra of machined object before grinding in SUJ2 material, SS400 material is 0.15 μm.With this phase
It is right, in the case where the abrasive media for being scattered in resin using abrasive grain is ground (Examples 1 to 10,13~15,22), grinding
The surface roughness Ra of machined object afterwards is 0.07 μm~0.12 μm, so can be ground well in any condition
Mill.Using only being ground by the abrasive media that nylon resin is formed, as shown in embodiment 11,12, by
In not containing abrasive grain, so grainding capacity is poorer than Examples 1 to 10.But recognize compared with rough, surface roughness
It is small, therefore can also be ground with the abrasive media of the type B.In addition judge using the abrasive media and further by abrasive grain
The embodiment 19 that loading is ground is ground compared with Example 10 to make progress.
In the case where being ground using ceramic dielectric (Comparative Examples 1 and 2), the rough surface of the machined object after grinding
Spending Ra is 0.29 μm and 0.3 μm.In view of this is because ceramic dielectric is harder than resin medium, to the impact force of machined object compared with
By force.It but is 0.09 μm~0.20 μm in the case where also being ground antirust function imparting material loading roller trough.It pushes away
Surveying this is to assign material by antirust function to be formed with epithelium on the surface of abrasive media, as a result, the lubrication of abrasive media itself
Property improve, impact force when abrasive media and machined object collide weakens.Especially use sodium soap as antirust
(embodiment 19~21) is 0.07 μm~0.10 μm in the case that function assigns material, becomes and utilizes the grinding of resin medium same
Deng surface roughness, therefore judge to further improve lubricity.That is, if assigning antirust function to material is packed into roller
Slot can then be also equipped with and form epithelium non-wettedly on the surface of abrasive media to assign the surface lubrication of abrasive media
Lubricity assigns process.It is same or connect with it with the grinding based on resin medium so as to obtain by having the process
Close finishing performance (surface roughness, adjustment of shape etc.).In addition, in the grinding condition of the present embodiment, do not observe because
The difference of surface roughness caused by the difference of the material of machined object.
(3) evaluation of antirust
The machined object (rough 1,2) of barreling is not carried out at the time of placing 72 hours after starting observation, has been produced
It gets rusty, then as the passage of time, rust continues to generate, and after 312 hours, observes the rust of 0.5mm or more.With this phase
It is right, in the case where being ground using the abrasive media containing nylon resin, as shown in embodiment 1~12, do not observe
To rust, even if observe rust, the rust less than 0.5mm that intensity, dimensional accuracy impact will not be sentenced by also only observing
Even if the disconnected passage of time out is not also corroded.Although being difficult to generate rust if the film thickness of the epithelium of resin is made to thicken, if
Further film thickness is made to thicken, is then easy to produce rust (embodiment 9) on the contrary.Speculate this is because being once capped when film thickness thickens
Epithelium removing.
In the case where being ground using the abrasive media containing resin in addition to nylon resin, as embodiment 13~
Shown in 15 like that, although compared with (Examples 1 to 10) the case where using the abrasive media containing nylon resin, generation of becoming rusty when
Between the evaluation for being evaluated as zero or △ that is early, but becoming rusty.Even if judging using the structure containing the resin in addition to nylon
Abrasive media ground in the case where, can also assign machined object antirust function.
In the case where being ground using ceramic dielectric, as shown in Comparative Examples 1 and 2, at 96 hours and 72 hours
For × evaluation.In addition, judging to be easy to produce rust compared with rough.In contrast, be packed into nylon resin be mainly at
Point antirust function assign material the case where being ground as shown in embodiment 16~18, and with contain nylon resin
The case where identical condition of abrasive media is ground (embodiment 7) is compared, and time of generation of becoming rusty is early, but with other conditions phase
Than the same above rust-proof effect can be obtained.Especially antirust function is assigned when the form of material is formed body and can be obtained
Excellent rust-proof effect.
Be packed into sodium soap antirust function as main component assign the case where material is ground such as embodiment 19~
Shown in 21 like that, the case where capable of obtaining than being ground with condition identical with the abrasive media containing nylon resin, (implements
Example 7) and be packed into nylon resin antirust function as main component assign the case where material is ground (embodiment 16~
18) more excellent rust-proof effect.Especially antirust function, which assigns when the form of material is formed body, can obtain excellent antirust
Effect.
It is packed into antirust function and assigns the case where material and abrasive grain are ground as shown in embodiment 22, and only pass through
The case where identical abrasive media is ground (embodiment 12) is made progress compared to grinding, and obtains excellent antirust effect
Fruit.
In addition, if comparing machined object is SUJ2 material and the case where SS400 material, with identical grinding condition into
In the case where row grinding, in the qualitative evaluation shown in table 1, difference is not observed, but for SUJ2, slightly observes that rust produces
Raw less trend.
Recognize according to the above results, can ground by grinding machined object using the abrasive media containing resin
Antirust function is assigned while grinding machined object.
In the above description, with the rust that is generated in machined object for " red rust (Fe2O3) " be illustrated as an example.But
It is that method of the invention can also be suitably applied to inhibit by " scales (Fe3O4) ", nonferrous metal is as machined object
In the case of generate corrosion product (such as generated for copper " patina ", generate for tin, aluminium
" white rust " etc.) generation the case where.
In embodiments, although the grinding process for using centrifugal barrel polishing device is illustrated, this hair is utilized
It's not limited to that for bright method and the tumbling apparatus used.It can be applied to utilize the bottom by making to be set to grinding device
Rotation disc spins and make " flowing tumbling apparatus " that block liquidation ground, make mass flow and vibrating roller trough
The grinding that the so-called tumbling apparatus such as " the vibration tumbling apparatus " that dynamicization is ground carry out.
In embodiment, although the case where being directed to the grinding based on ceramic dielectric illustrates to assign material based on antirust function
Lubricity assign process, but the case where for grinding based on metal medium, can also be arranged.
Although the grinding process of the invention rust-proof effect compared with the barreling of dry type is lower, wet type can also apply to
Barreling.
Claims (5)
1. a kind of grinding process, dry grinding machined object,
The grinding process is characterized in that having:
Block is packed into process, is fitted into process in the block block containing the machined object and abrasive media being packed into rolling
Cylinder slot；And
Liquidation process, make in the liquidation process block in the roller trough liquidation to utilize the grinding
Machined object described in medium milling, and the epithelium with antirust function is formed on the surface of the machined object,
The abrasive media is scattered in resin by abrasive grain and constitutes,
In the liquidation process, the machined object is ground using the abrasive media, and utilize the abrasive media
The contained resin forms the epithelium of the resin on the surface of the machined object,
The resin using nylon as main component,
In the liquidation process, the epithelium with a thickness of 0.1~10.0nm is formed.
2. a kind of grinding process, dry grinding machined object,
The grinding process is characterized in that having:
Block is packed into process, the block is fitted into process will contain the machined object, abrasive media and as powder or
The block that the antirust function of person's formed body assigns material is packed into roller trough；And
Liquidation process, make in the liquidation process block in the roller trough liquidation to utilize the grinding
Machined object described in medium milling, and the epithelium with antirust function is formed on the surface of the machined object,
In the liquidation process, the machined object is ground using the abrasive media, and utilize the antirust function
Imparting material does not form composition on the surface of the machined object with not making the moistened surface of the machined object non-wettedly, and this is anti-
Function of becoming rusty assigns the epithelium of the ingredient of material,
In the liquidation process, the epithelium with a thickness of 0.1~10.0nm is formed,
The antirust function is assigned material and is constituted using resin as main component.
3. grinding process according to claim 2, which is characterized in that
The resin is using nylon as main component.
4. grinding process according to claim 2, which is characterized in that
The block also includes abrasive grain,
In the liquidation process, using machined object described in the abrasive media and the abrasive finishing process, and utilize
The antirust function assigns material and forms the main component for assigning material as the antirust function on the surface of the machined object
Epithelium.
5. grinding process according to claim 2, which is characterized in that
In the liquidation process, described be processed is ground using the abrasive media for being formed with non-wetted epithelium on surface
Object, the ingredient that the non-wetted epithelium assigns material by constituting the antirust function are constituted.
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| JP6934653B2 (en) * | 2016-03-11 | 2021-09-15 | 株式会社チップトン | Surface treatment method for metal parts |
| CN105778863B (en) * | 2016-04-20 | 2018-06-29 | 廊坊市北方天宇机电技术有限公司 | A kind of aluminium wheel centrifugal barrel finishing grinding fluid and preparation method thereof |
| CN107189759A (en) * | 2017-06-22 | 2017-09-22 | 芜湖浙鑫新能源有限公司 | Abrasive material and preparation method thereof |
| CN107286909A (en) * | 2017-06-22 | 2017-10-24 | 芜湖浙鑫新能源有限公司 | High intensity abrasive material and preparation method thereof |
| CN110614565B (en) * | 2018-06-04 | 2024-12-10 | 成都银河磁体股份有限公司 | A magnet processing system and a magnet processing method |
| CN113618617B (en) * | 2021-08-16 | 2024-09-13 | 南通市纤维检验所 | Method for prolonging service cycle of steel command and polishing machine |
| CN113751712A (en) * | 2021-08-19 | 2021-12-07 | 枣庄市鲁州粉末冶金制品有限公司 | Powder metallurgy brass bearing retainer and preparation process thereof |
| CN115365987B (en) * | 2021-11-15 | 2024-01-19 | 广州市纬略实业股份有限公司 | Process and application for polishing workpiece by physical and chemical simultaneously |
| CN114473833B (en) * | 2022-03-16 | 2023-04-07 | 广州大学 | Centrifugal swing type reinforced grinding processing device |
| CN115091350A (en) * | 2022-05-06 | 2022-09-23 | 万安县泰鑫电子有限责任公司 | Quartz wafer edge chamfering device |
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| JP2016000450A (en) | 2016-01-07 |
| CN104669097A (en) | 2015-06-03 |
| JP6376465B2 (en) | 2018-08-22 |
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