CN117817282A - Method for removing nickel layer on side surface of boss made of heat sink material - Google Patents
Method for removing nickel layer on side surface of boss made of heat sink material Download PDFInfo
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- CN117817282A CN117817282A CN202410048911.5A CN202410048911A CN117817282A CN 117817282 A CN117817282 A CN 117817282A CN 202410048911 A CN202410048911 A CN 202410048911A CN 117817282 A CN117817282 A CN 117817282A
- Authority
- CN
- China
- Prior art keywords
- boss
- nickel
- heat sink
- deburring
- nickel layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000007747 plating Methods 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000003754 machining Methods 0.000 claims abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000007772 electroless plating Methods 0.000 claims description 2
- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005219 brazing Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 and the like Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
-
- 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
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
-
- 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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/04—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of solid grinding, polishing or lapping agents
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemically Coating (AREA)
Abstract
The invention provides a method for removing a nickel layer on the side surface of a boss made of a heat sink material, and relates to the technical field of nickel plating of molybdenum-copper heat sink materials. The method comprises the steps of processing through numerical control equipment to obtain a boss with a convex structure; deburring the boss for the first time; carrying out surface nickel plating on the boss subjected to the first deburring to obtain a nickel-plated boss; carrying out partial nickel removal on the nickel-plated boss; carrying out secondary deburring on the boss subjected to the partial nickel removal; and cleaning and drying the bosses subjected to the second deburring to obtain the finished product. The invention can clean and thoroughly remove the nickel layer on the side surface of the boss bottom plate, thereby meeting the use requirement of the product during brazing. The machining precision of the outline dimension of the boss can be guaranteed, so that the position degree of the boss can be guaranteed when the nickel layer on the side surface of the bottom plate of the boss is removed later. The nickel layer on the side surface of the base plate of the boss can be removed accurately and thoroughly without pollution. Can remove dirt on the surface of the product and ensure the cleanness of the surface of the product.
Description
Technical Field
The invention relates to the technical field of nickel plating of molybdenum-copper heat sink materials, in particular to a method for removing a nickel layer on the side surface of a boss made of a heat sink material.
Background
The heat sink material (Thermal sink material) is a material capable of efficiently transferring heat and consuming a large amount of heat energy, and is widely applied to the field of heat dissipation. The heat sink material successfully realizes the breakthrough of the traditional heat dissipation method by virtue of the excellent heat dissipation performance. From a molecular structural point of view, the heat sink material is generally composed of a material having high thermal conductivity and large heat capacity. Typical materials include metals such as copper, aluminum, and the like, and semiconductor materials such as silicon nitride, aluminum nitride, and the like. The low electrical resistivity and high thermal conductivity of these materials are effective in conducting thermal energy, which is transferred away quickly and efficiently.
Nickel plating refers to plating a layer of nickel on the surface of a metal material by electroplating or electroless nickel plating. The requirements on the matching performance and the welding performance of the welding are higher and higher in the field of electronic tube shells, certain requirements are also required on the flowable region of the welding, a nickel layer on the surface of a heat sink material is an excellent wettability material capable of driving the welding flux to flow, the welding flux can flow in a diffusion way along the surface with a plating layer, and more products needing local nickel plating are needed. At present, a nickel plating shielding method and a sand blasting nickel removing method are commonly used for removing local nickel. The nickel plating method is to insulate the metal material locally by non-metal medium, and to make the nickel plating locally impossible. The sand blasting nickel removal method is to plastically deform nickel so as to peel the nickel layer from the product. The two methods have a certain effect on the light plate products, but are difficult to control the local nickel layer on the boss products.
In addition, the nickel layer on the side surface of the boss type product cannot be accurately controlled; the side nickel layer is not thoroughly removed, residual nickel exists, and the solder flows out during welding.
Therefore, the invention designs a method for precisely removing the side nickel layer of the boss type product.
Disclosure of Invention
The invention provides a method for removing a nickel layer on the side surface of a boss made of a heat sink material, and aims to solve the problems of inaccurate nickel removal position and incomplete nickel removal of the side surface of a boss product.
In order to achieve the above purpose, the embodiment of the invention provides a method for removing a side nickel layer of a boss made of a heat sink material, comprising the following steps:
s1: processing a heat sink material by numerical control equipment to obtain a boss with a convex structure;
s2: deburring the boss for the first time;
s3: carrying out surface nickel plating on the boss subjected to the first deburring to obtain a nickel-plated boss;
s4: carrying out partial nickel removal on the nickel-plated boss;
s5: carrying out secondary deburring on the boss subjected to the partial nickel removal;
s6: and cleaning and drying the bosses subjected to the second deburring to obtain the finished product.
Preferably, in the step S1, the rotational speed of the processing process is 10000-30000 r/min, the feeding speed is 100-1500 mm/min, and the finish milling allowance is 0.01-0.03 mm.
Preferably, in the step S2, the diameter of zirconia used for deburring is 0.5-5 mm, the rotating speed is 200-800 r/mm, and the time is 1-60 min.
Preferably, in step S3, the placement mode is rack plating or barrel plating.
Preferably, in step S3, the nickel plating method is electroplating or electroless plating.
Preferably, in the step S4, the partial nickel removal is performed by rough milling and finish milling in an air cooling mode, the air blowing pressure is 0.1-0.8 Mpa, the processing rotating speed is 8000-20000 r/min, and the feeding speed is 200-1000 mm/min.
Preferably, in the step S5, the diameter of zirconia used for deburring is 0.1-1.0 mm, the rotating speed is 100-500 r/mm, and the time is 1-5 min.
Preferably, in step S6, pure water is used for cleaning, and the cleaning time is 5-30 min.
Preferably, in the step S6, the drying temperature is 50-90 ℃ and the drying time is 3-10 min.
Preferably, the deburring is by roll grinding.
The scheme of the invention has the following beneficial effects:
the invention can clean and thoroughly remove the nickel layer on the side surface of the boss bottom plate, thereby meeting the use requirement of the product during brazing. The poor nickel removing effect of other modes, such as that the side nickel layer is still higher, can be avoided, and the solder flows out from the side during soldering. The machining precision of the outline dimension of the boss can be guaranteed, so that the position degree of the boss can be guaranteed when the nickel layer on the side surface of the bottom plate of the boss is removed later. The burrs formed by the processing can be peeled off from the product. The nickel layer on the side surface of the base plate of the boss can be removed accurately and thoroughly without pollution. Can remove dirt on the surface of the product and ensure the cleanness of the surface of the product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for removing a nickel layer on a side surface of a boss made of heat sink material according to an embodiment of the invention;
FIG. 2 is a schematic plan view of a boss in a method for removing a nickel layer on a side surface of a boss made of heat sink material according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a deburring process in a method for removing a nickel layer on a side surface of a boss made of a heat sink material according to embodiment 1 of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or may be prepared by existing methods.
The invention provides a method for removing a nickel layer on the side surface of a boss made of a heat sink material, aiming at the existing problems, and a flow chart is shown in figure 1.
Example 1
A method for removing a nickel layer on the side surface of a boss made of a heat sink material comprises the following steps:
the heat sink material is a molybdenum copper composite material with the thickness of 4 multiplied by 3.4 multiplied by 1mm, and is required to be processed into a nickel-free layer with the thickness of 0.5mm in the peripheral area of the bottom.
Step 1, boss processing: and (2) processing a boss with the precision of +/-0.02 mm by adopting the molybdenum-copper composite material and adopting a triaxial numerical control machine tool, wherein a plan schematic view is shown in figure 2. In order to ensure the smoothness and fine processing texture, the rough and fine rotating speed is 24000r/min, the fine processing feeding is 500mm/min, and the fine processing allowance is 0.015mm. In order to ensure fewer burrs, the machining is performed by direct milling.
Step 2, deburring for the first time: zirconia material grinding balls with the particle size of 2.0mm are added into a round roller, then the boss is placed into the roller, rolling grinding deburring is carried out by matching with rolling equipment, the rotating speed is 500r/min, the time is 5min, and the schematic process diagram is shown in figure 3.
Step 3, nickel plating: and nickel is electroplated on the surface of the boss in an upward hanging mode.
Step 4, removing nickel by local cleaning: the nickel layer on the side face of the boss bottom plate is removed cleanly by adopting numerical control equipment, a clamp which is reasonable in design and clean is adopted in the whole process, a clean and greasy dirt-free numerical control machine tool is adopted, rough and finish milling is carried out by adopting a filtered air cooling mode, and the air pressure is 0.5MPa. And the nickel layer on the side surface of the base plate of the boss is accurately and thoroughly removed. The clean clamp body used for processing adopts a silica gel sheet with the thickness of 0.5mm attached on a pressing plate, and the silica gel sheet is directly contacted with a boss. And then the boss faces downwards to be placed in the accurate profiling cavity, and then each boss is pressed by the prepared pressing plate through accurate and rapid positioning of the positioning pins at the two ends, and the bolts are screwed for fixation. After removing 3 side nickel layers in the first step, pressing and fixing the side nickel layers by using a pressing plate, and removing the pressing plate on the other side in the second step to ensure the position degree of the boss, and removing the 4 th side nickel layer. The processing parameters are carried out according to the rotation speed of 15000r/min and the feeding speed of 600 mm/min.
Step 5, secondary deburring: by adding small zirconia material grinding balls with the diameter of 0.5mm into the round roller, the grinding balls and the grinding barrel are required to be cleaned for three times, so that the cleanness is ensured. And then the boss is placed into a roller, and rolling grinding deburring is carried out by matching with rolling equipment. The rolling time is strictly controlled to avoid the serious damage to the nickel layer area surface, and the rolling time is 3min according to the rotating speed of 100 r/min.
Step 6, cleaning and drying: after the boss burring, separate from the cylinder, through adding pure water vibration washing in the ultrasonic wave, get rid of the dirty on boss surface, guarantee the clean of its surface. And (5) after cleaning, drying the product by using an oven to obtain the product. Wherein the cleaning time is 10min, the drying temperature is 80 ℃, and the drying time is 5min.
Example 2
A method for removing a nickel layer on the side surface of a boss made of a heat sink material comprises the following steps:
the heat sink material is tungsten copper composite material with the thickness of 30 multiplied by 20 multiplied by 1mm, and is required to be processed into a nickel-free layer with the thickness of 0.5mm in the peripheral area of the bottom.
Step 1, boss processing: and (3) processing the molybdenum-copper composite material by adopting a triaxial numerical control machine tool to obtain a boss with the precision of +/-0.02 mm. In order to ensure the smoothness and the fine processing texture, the rough and fine rotating speed is 30000r/min, the fine processing feeding is 1500mm/min, and the fine processing allowance is 0.03mm. In order to ensure fewer burrs, the machining is performed by direct milling.
Step 2, deburring for the first time: zirconia material grinding balls with the grain diameter of 5.0mm are added into a round roller, then the boss is placed into the roller, and rolling grinding deburring is carried out by matching with rolling equipment, wherein the rotating speed is 800r/min, and the time is 60min.
Step 3, nickel plating: and nickel is electroplated on the surface of the boss in an upward hanging mode.
Step 4, removing nickel by local cleaning: the nickel layer on the side face of the boss bottom plate is removed cleanly by adopting numerical control equipment, a clamp which is reasonable in design and clean is adopted in the whole process, a clean and greasy dirt-free numerical control machine tool is adopted, rough and finish milling is carried out by adopting a filtered air cooling mode, and the air pressure is 0.8MPa. And the nickel layer on the side surface of the base plate of the boss is accurately and thoroughly removed. The clean clamp body used for processing adopts a silica gel sheet with the thickness of 0.5mm attached on a pressing plate, and the silica gel sheet is directly contacted with a boss. And then the boss faces downwards to be placed in the accurate profiling cavity, and then each boss is pressed by the prepared pressing plate through accurate and rapid positioning of the positioning pins at the two ends, and the bolts are screwed for fixation. After removing 3 side nickel layers in the first step, pressing and fixing the side nickel layers by using a pressing plate, and removing the pressing plate on the other side in the second step to ensure the position degree of the boss, and removing the 4 th side nickel layer. The processing parameters are carried out according to the rotation speed of 20000r/min and the feeding speed of 1000mm/min.
Step 5, secondary deburring: by adding small zirconia material grinding balls with the diameter of 1.0mm into the round roller, the grinding balls and the grinding barrel are required to be cleaned for three times, so that the cleanness is ensured. And then the boss is placed into a roller, and rolling grinding deburring is carried out by matching with rolling equipment. The rolling time is strictly controlled to avoid the serious damage to the nickel layer area surface, and the rolling time is 5min according to the rotating speed of 500 r/min.
Step 6, cleaning and drying: after the boss burring, separate from the cylinder, through adding pure water vibration washing in the ultrasonic wave, get rid of the dirty on boss surface, guarantee the clean of its surface. And (5) after cleaning, drying the product by using an oven to obtain the product. Wherein, the cleaning time is 30min, the drying temperature is 90 ℃, and the drying time is 10min.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The method for removing the nickel layer on the side surface of the boss made of the heat sink material is characterized by comprising the following steps of:
s1: processing a heat sink material by numerical control equipment to obtain a boss with a convex structure;
s2: deburring the boss for the first time;
s3: carrying out surface nickel plating on the boss subjected to the first deburring to obtain a nickel-plated boss;
s4: carrying out partial nickel removal on the nickel-plated boss;
s5: carrying out secondary deburring on the boss subjected to the partial nickel removal;
s6: and cleaning and drying the bosses subjected to the second deburring to obtain the finished product.
2. The method for removing the nickel layer on the side surface of the boss made of the heat sink material according to claim 1, wherein in the step S1, the machining process rotation speed is 10000-30000 r/min, the feeding speed is 100-1500 mm/min, and the finish milling allowance is 0.01-0.03 mm.
3. The method for removing the nickel layer on the side surface of the boss made of the heat sink material according to claim 1, wherein in the step S2, the diameter of zirconia used for deburring is 0.5-5 mm, the rotating speed is 200-800 r/mm, and the time is 1-60 min.
4. The method for removing a side nickel layer of a boss made of heat sink material according to claim 1, wherein in step S3, the placement mode is rack plating or barrel plating.
5. The method for removing a side nickel layer of a boss made of heat sink material according to claim 1, wherein in step S3, the nickel plating method is electroplating or electroless plating.
6. The method for removing the nickel layer on the side surface of the boss made of the heat sink material according to claim 1, wherein in the step S4, the partial nickel removal is performed by rough and finish milling in an air cooling mode, the air blowing pressure is 0.1-0.8 Mpa, the processing rotating speed is 8000-20000 r/min, and the feeding speed is 200-1000 mm/min.
7. The method for removing the nickel layer on the side surface of the boss made of the heat sink material according to claim 1, wherein in the step S5, the diameter of zirconia used for deburring is 0.1-1.0 mm, the rotating speed is 100-500 r/mm, and the time is 1-5 min.
8. The method for removing the nickel layer on the side surface of the boss made of the heat sink material according to claim 1, wherein in the step S6, pure water is used for cleaning, and the cleaning time is 5-30 min.
9. The method for removing nickel layers on the side surfaces of the boss made of heat sink materials according to claim 1, wherein in the step S6, the drying temperature is 50-90 ℃ and the drying time is 3-10 min.
10. The method of claim 1, wherein the deburring is rolling grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410048911.5A CN117817282A (en) | 2024-01-12 | 2024-01-12 | Method for removing nickel layer on side surface of boss made of heat sink material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410048911.5A CN117817282A (en) | 2024-01-12 | 2024-01-12 | Method for removing nickel layer on side surface of boss made of heat sink material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117817282A true CN117817282A (en) | 2024-04-05 |
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ID=90513308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410048911.5A Pending CN117817282A (en) | 2024-01-12 | 2024-01-12 | Method for removing nickel layer on side surface of boss made of heat sink material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117817282A (en) |
-
2024
- 2024-01-12 CN CN202410048911.5A patent/CN117817282A/en active Pending
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