CN205821391U - A kind of 0 DEG C of cold quenching equipment - Google Patents
A kind of 0 DEG C of cold quenching equipment Download PDFInfo
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- CN205821391U CN205821391U CN201620380251.1U CN201620380251U CN205821391U CN 205821391 U CN205821391 U CN 205821391U CN 201620380251 U CN201620380251 U CN 201620380251U CN 205821391 U CN205821391 U CN 205821391U
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- cold quenching
- nitrogen
- liquid nitrogen
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Abstract
This utility model belongs to Field of Heat-treatment, relates to a kind of 0 DEG C of cold quenching equipment.The open a kind of 0 DEG C of cold quenching equipment of this utility model, the mode using water to mix with liquid nitrogen quenches, and is divided into three systems, and one is the closed cold quenching case system that cold quenching casing (3), cold quenching case lid (1), back with water inlet line (2) form；Two is the liquid nitrogen supply that forms of nitrogen purge pipeline (9), nitrogen recycling air bag (10), nitrogen recycling pipeline (11), liquid nitrogen container (12), liquid nitrogen feed-line (13) and nitrogen recycling system；Three is that the heat treated part that work-handling piston (4), piston rod (14), hydraulic cylinder (8), rubber seal (5) form steadily send the piston mechanism etc. taken to constitute.The advantages such as this utility model has easy-to-operate, hardening heat precise constant, and liquid nitrogen consumption is few, and nitrogen can utilize by secondary, pollution-free.
Description
Technical field
This utility model belongs to Field of Heat-treatment, relates to a kind of 0 DEG C of cold quenching equipment.
Background technology
Quenching is the one of metal heating processing technology, is metal works to be heated to a certain temperature and keeps a period of time,
Immersing in quenching medium afterwards and quickly cool down, conventional quenching medium has saline, water, mineral oil, air etc..Use tradition cooling
The defect one of liquid quenching: along with the carrying out of quenching work, the temperature of coolant can gradually rise, be difficulty with accurate temperature controlling.Cold
But liquid temp is uncontrollable, and cold quenching effect can be different, makes the quality of cold quenching workpiece change, is unfavorable for same batch work-piece
Quality control；And along with the rising of cold quenching liquid temp, the cold quenching radius of workpiece can be made to diminish, make large-scale workpiece to quench
Thoroughly.Defect two: the tradition type of cooling quickly immerses in coolant frequently with by high temperature metal workpieces, easily causes coolant and flies
Spatter, cause personnel to injure.
In low temperature quenching, Quenching in liquid nitrogen effect is best, it is to avoid the three phases " thermal shock " of quenching, prevents quenching workpiece
Deformation fracture, and hardness and the wearability of quenching workpiece can be significantly improved.But in low temperature quenching because the temperature of liquid nitrogen be-
197 DEG C, tradition quenching apparatus easily becomes fragile and ruptures, and can only realize, it is impossible to be applied in commercial production in laboratory.If liquid
Nitrogen supply amount cannot accurately control, and supply too much, salvages workpiece the most difficult from liquid nitrogen；And the liquid nitrogen discharged is difficult to again
Secondary it is recovered in liquid nitrogen container (12), easily causes waste.
Novel 0 DEG C of cold quenching equipment can solve coolant temperature and constant, workpiece cannot be kept through hardening, coolant to splash
Problem, simultaneously can also realize low temperature quenching, prevent workpiece deformation, cracking.
Summary of the invention
The purpose of this utility model is to find a kind of 0 DEG C of cold quenching equipment being prevented effectively from prior art deficiency.
This utility model is by cold quenching case lid (1), back with water inlet line (2), cold quenching casing (3), work-handling piston (4), rubber
Sealing ring (5), hydraulic cylinder mounting base (6), hydraulic cylinder connecting bolt (7), hydraulic cylinder (8), nitrogen purge pipeline (9), nitrogen
Reclaim air bag (10), nitrogen recycling pipeline (11), liquid nitrogen container (12), liquid nitrogen feed-line (13), piston rod (14), support
(15) composition.0 DEG C of cold quenching equipment is mainly made up of three systems, and one is cold quenching casing (3), cold quenching case lid (1), back with water inlet line
(2) the closed cold quenching case system formed；Two is nitrogen purge pipeline (9), nitrogen recycling air bag (10), nitrogen recycling pipeline
(11) liquid nitrogen supply that, liquid nitrogen container (12), liquid nitrogen feed-line (13) form and nitrogen recycling system；Three is work-handling piston
(4), the heat treated part that piston rod (14), hydraulic cylinder (8), rubber seal (5) form steadily send the piston mechanism taken；Cold quenching
Casing (3) top is equipped with cold quenching case lid (1), and when dress takes heat treated part, cold quenching case lid (1) can be pulled down or load onto；At cold quenching case
Body (3), on the position of bottom, connects and has liquid nitrogen feed-line (13), the other end of liquid nitrogen feed-line (13) and liquid nitrogen container
(12) it is connected；Cold quenching casing (3), on the position at top, connects and has back with water inlet line (2) and nitrogen recycling pipeline (11), nitrogen
The other end of gas recovery line (11) is connected with nitrogen recycling air bag (10), is connected to nitrogen row on nitrogen recycling air bag (10)
Blank pipe line (9)；Internal at cold quenching casing (3), work-handling piston (4) is installed, cold quenching casing (3) bottom has a circular hole,
Piston rod (14) extends there through, and piston rod (14) upper end is connected with work-handling piston (4), piston rod (14) lower end and hydraulic pressure
Cylinder (8) is connected；The active force that hydraulic cylinder (8) produces passes to work-handling piston (4) by piston rod (14), makes workpiece fill
Unload piston (4) to move up and down in cold quenching casing (3), in the circular hole of cold quenching casing (3) bottom, rubber seal is installed
Circle (5), rubber seal (5) is in close contact with piston rod (14), prevents cooling down water and flows out from piston rod (14) outer surface, rises close
The effect of seal cooling water；Cold quenching casing (3) bottom is provided with support (15), and they connect with welding manner；Hydraulic cylinder installs the end
Plate (6) outward flange is connected with support (15) by welding manner, and hydraulic cylinder mounting base (6) inward flange connects spiral shell by hydraulic cylinder
Bolt (7) is connected with hydraulic cylinder (8).There is rubber seal cold quenching case lid (1) and cold quenching casing (3) contact site, can play close
Envelope effect, thus preferably reclaim nitrogen, improve the utilization rate of liquid nitrogen.Back with water inlet line is provided with stop valve on (2), by water inlet
Pipeline (2) can inject cooling water in cold quenching casing (3), is provided with rubber seal (5) in cold quenching casing (3) bottom, anti-
Only cooling water flows out from piston rod (14) outer surface, plays the effect of close seal cooling water.Cooling water can be passed through in cold quenching casing (3)
And liquid nitrogen, frozen water mixed solution can be formed at hot near workpieces, thus ensure that cooling medium, all the time at 0 DEG C, makes cold quenching equipment
There is low temperature quenching and the two-fold advantage of constant temperature quenching.Liquid nitrogen is by after thermal evaporation, and a small amount of nitrogen is soluble in water, and a large amount of nitrogen are assembled
On the water surface.In the environment containing nitrogen, carry out quenching can significantly improve hardness and the wearability of workpiece；And 0 DEG C low
Temperature can accelerate quenching velocity, improves cold quenching efficiency, it is to avoid the three phases " thermal shock " of quenching, so that quenching workpiece is not
Strain cracking.Work-handling piston (4) is the parts of workpiece loading and unloading, when it moves to cold quenching casing (3) top, by high temperature workpiece
(especially heavy workpiece) is put on work-handling piston (4), then by the effect of hydraulic cylinder (8), workpiece is transported to cold quenching case
Body (3) bottom, after covering cold quenching case lid (1), then carries out cold quenching, coolant can be avoided to splash and cause personnel to injure.Cold quenching is tied
Shu Hou, frozen water hybrid cold quenching liquid can gradually form a monoblock ice, can cut off liquid nitrogen supply.After liquid nitrogen quits work, close
Close the valve on liquid nitrogen feed-line (13), thus play the effect saving liquid nitrogen.The effect of hydraulic cylinder mounting base (6) is solid
Determining hydraulic cylinder (8), it is generally circular in shape, and there is circular hole centre.Circularhole diameter is more than piston rod (14), makes piston rod (14) to wear
Cross circular hole and do not contact.Hydraulic cylinder mounting base (6) is connected with support (15) by welding manner.Hydraulic cylinder mounting base (6)
It is connected by hydraulic cylinder connecting bolt (7) with hydraulic cylinder (8).Hydraulic cylinder (8) is work-handling piston (4) by piston rod (14)
Move up and down and power is provided.Nitrogen purge pipeline is provided with valve on (9), is in normally off at ordinary times.Nitrogen recycling air bag
(10) nitrogen can be reclaimed by nitrogen recycling pipeline (11).Liquid nitrogen container (12) is placed on the ground that cold quenching casing (3) is other at ordinary times
On, removable, but shockproof, have the release mechanisms such as safety-valve.After liquid nitrogen is finished, appointed place fill liquid again can be arrived
Nitrogen.Liquid nitrogen feed-line (13) can allow the liquid nitrogen in liquid nitrogen container (12) flow in cold quenching casing (3), liquid nitrogen feed-line (13)
Requirement has resistance to low temperature, and size is the shortest, prevents from rupturing.Piston rod (14) require have preferable wearability, when moving back and forth with
Rubber seal (5) sealing effectiveness is good.Support (15) has 4 supporting legs, is separated by 90 ° and divides equally, and 4 supporting legs install the end with hydraulic cylinder
Plate (6) is connected by welding manner, and support (15) is connected by welding manner with cold quenching casing (3).
The advantage of utility model:
By aqueous solution is passed through this mode of liquid nitrogen, frozen water hybrid cooling system can be built, to guarantee that workpiece is being quenched
During fire, hardening heat remains at 0 DEG C, makes cold quenching equipment have low temperature quenching and the double grading of constant temperature quenching.Low temperature is quenched
Fire can improve the hardness of metal works, wearability；Constant temperature quenching can make workpiece cold quenching effect the same, it is thus achieved that same quality.
In this utility model, after aqueous solution freezes completely, operator can be by being arranged on liquid nitrogen feed-line (13)
On valve thoroughly cut off liquid nitrogen supply, accomplish accurately to control the usage amount of liquid nitrogen.Cold quenching method with traditional immersion
Comparing, novel 0 DEG C of cold quenching equipment can more save liquid nitrogen.
Devise work-handling piston (4), can send smoothly and take high temperature workpiece.During quenching, first workpiece is put into position, lid
After good cold quenching case lid (1), add water and liquid nitrogen, prevent liquid splash dangerous.After high-temperature component is rapidly cooled, frozen water is hybrid
Cold quenching liquid can gradually form a monoblock ice, shuts off the supply of liquid nitrogen, can save cooling medium.After quenching, cooling
Workpiece is sent by work-handling piston (4), without evacuation of liquid or salvaging workpiece, can improve work efficiency.
After liquid nitrogen is converted into nitrogen, can be reclaimed by nitrogen recycling air bag (10).Nitrogen after recovery can pass through nitrogen again
Gas vent line (9) is connected on heating furnace.When heating furnace heated parts, workpiece can be played the effect of nitrogen protection,
Prevent workpiece when heating and oxygen reaction, it is achieved nitrogen secondary utilizes.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel 0 DEG C of cold quenching equipment.
Fig. 2 is the upward view of novel 0 DEG C of cold quenching equipment
Detailed description of the invention
Referring to the drawings, in conjunction with novel 0 DEG C of cold quenching equipment work process, this utility model is further illustrated.
It is first turned on cold quenching case lid (1) and checks that the valve on nitrogen purge pipeline (9) is closed, workpiece is filled
Unload piston (4) and rise to cold quenching casing (3) top, high temperature workpiece is steadily put on work-handling piston (4), afterwards to moving down
Dynamic work-handling piston (4), to cold quenching casing (3) bottom, covers cold quenching case lid (1).After workpiece is in place, it is passed through cold simultaneously
But water and liquid nitrogen.Cooling water runs into liquid nitrogen meeting flash freeze, forms frozen water mixed solution, it is ensured that high temperature workpiece is all the time 0 DEG C of perseverance
Cool down under the conditions of temperature.After liquid nitrogen gasification, the nitrogen of formation can be by nitrogen recycling pipeline (11) by nitrogen recycling air bag
(10) reclaim.Along with the recovery of nitrogen, nitrogen recycling air bag (10) can be gradually filled with, and closes on nitrogen recycling pipeline (11) in time
Valve, make nitrogen recycling air bag (10) keep certain pressure.In order to ensure nitrogen recycling ability, nitrogen recycling air bag (10)
Size to determine according to real work situation so that it is has the nitrogen recycling ability of abundance.When high temperature workpiece temperature drops to 0 DEG C
Time, the water meeting freeze in cold quenching casing (3), make the liquid nitrogen supplied by liquid nitrogen feed-line (13) be cut off, close in time
Close the valve on liquid nitrogen feed-line (13), thus play the effect saving liquid nitrogen.After cold quenching terminates, check again for, it is ensured that
Simultaneously close off the stop valve on liquid nitrogen feed-line (13) and nitrogen recycling pipeline (11).Open cold quenching case lid (1), lead to afterwards
Cross the effect of hydraulic cylinder (8), work-handling piston (4) is risen to cold quenching casing (3) top again, the ice of workpiece will be included
Block is transported to cold quenching casing (3) top, releases ice cube, is transported to the place of waste water reclamation, takes out work after ice melting
Part, thus complete discharge process.This utility model has easy-to-operate, hardening heat precise constant, and liquid nitrogen consumption is few, nitrogen
Can utilize by secondary, the advantage such as pollution-free.
Claims (9)
1. 0 DEG C of cold quenching equipment, it is characterised in that: 0 DEG C of cold quenching equipment is mainly made up of three systems, and one is cold quenching casing
(3), the closed cold quenching case system that cold quenching case lid (1), back with water inlet line (2) form；Two is that nitrogen purge pipeline (9), nitrogen return
Liquid nitrogen supply that getter capsule (10), nitrogen recycling pipeline (11), liquid nitrogen container (12), liquid nitrogen feed-line (13) form and nitrogen
Recovery system；Three is the heat treatment work that work-handling piston (4), piston rod (14), hydraulic cylinder (8), rubber seal (5) form
Part steadily send the piston mechanism taken；Cold quenching casing (3) top is equipped with cold quenching case lid (1), when dress takes heat treated part, cold quenching case lid
(1) can pull down or load onto；At cold quenching casing (3) on the position of bottom, connecting and have liquid nitrogen feed-line (13), liquid nitrogen carries
The other end of pipeline (13) is connected with liquid nitrogen container (12)；Cold quenching casing (3), on the position at top, connects and has back with water inlet line
(2) and nitrogen recycling pipeline (11), the other end of nitrogen recycling pipeline (11) is connected, at nitrogen with nitrogen recycling air bag (10)
Reclaim and be connected to nitrogen purge pipeline (9) on air bag (10)；Internal at cold quenching casing (3), work-handling piston (4) is installed, cold
Quench casing (3) bottom have a circular hole, piston rod (14) extends there through, piston rod (14) upper end and work-handling piston (4) phase
Connecting, piston rod (14) lower end is connected with hydraulic cylinder (8)；The active force that hydraulic cylinder (8) produces is transmitted by piston rod (14)
To work-handling piston (4), work-handling piston (4) is made to move up and down in cold quenching casing (3), in cold quenching casing (3)
Being provided with rubber seal (5) in the circular hole of bottom, rubber seal (5) is in close contact with piston rod (14), prevents from cooling down water
Flow out from piston rod (14) outer surface, play the effect of close seal cooling water；Cold quenching casing (3) bottom is provided with support (15), they
Connect with welding manner；Hydraulic cylinder mounting base (6) outward flange is connected with support (15) by welding manner, and hydraulic cylinder installs the end
Plate (6) inward flange is connected with hydraulic cylinder (8) by hydraulic cylinder connecting bolt (7).
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: cold quenching casing (3) contacts with cold quenching case lid (1)
There is rubber seal at position.
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: nitrogen recycling air bag (10) passes through nitrogen purge
Pipeline (9) is connected with heating furnace.
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: liquid nitrogen container (12) is split type removable shockproof
Liquid nitrogen container.
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: support (15) is by 4 supporting leg groups being separated by 90 °
Become.
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: hydraulic cylinder mounting base (6) is round, middle
Having circular hole, Circularhole diameter is more than diameter of piston rod.
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: back with water inlet line is provided with valve on (2).
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: nitrogen purge pipeline is provided with valve on (9).
0 DEG C of cold quenching equipment the most according to claim 1, it is characterised in that: liquid nitrogen feed-line is provided with valve on (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380251.1U CN205821391U (en) | 2016-04-30 | 2016-04-30 | A kind of 0 DEG C of cold quenching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380251.1U CN205821391U (en) | 2016-04-30 | 2016-04-30 | A kind of 0 DEG C of cold quenching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205821391U true CN205821391U (en) | 2016-12-21 |
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ID=58148467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620380251.1U Expired - Fee Related CN205821391U (en) | 2016-04-30 | 2016-04-30 | A kind of 0 DEG C of cold quenching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205821391U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214256A (en) * | 2017-06-14 | 2017-09-29 | 无锡贺邦汽车配件有限公司 | A kind of automobile buffering steel disc cooling device |
| CN107262700A (en) * | 2017-08-03 | 2017-10-20 | 新兴铸管股份有限公司 | Cast tube cooling system |
| CN112756580A (en) * | 2020-12-22 | 2021-05-07 | 闫哲 | Copper alloy bar extrusion forming die |
-
2016
- 2016-04-30 CN CN201620380251.1U patent/CN205821391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214256A (en) * | 2017-06-14 | 2017-09-29 | 无锡贺邦汽车配件有限公司 | A kind of automobile buffering steel disc cooling device |
| CN107262700A (en) * | 2017-08-03 | 2017-10-20 | 新兴铸管股份有限公司 | Cast tube cooling system |
| CN112756580A (en) * | 2020-12-22 | 2021-05-07 | 闫哲 | Copper alloy bar extrusion forming die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20180430 |