CN204644408U - A kind of location sprays mixing quenching device - Google Patents
A kind of location sprays mixing quenching device Download PDFInfo
- Publication number
- CN204644408U CN204644408U CN201520157858.9U CN201520157858U CN204644408U CN 204644408 U CN204644408 U CN 204644408U CN 201520157858 U CN201520157858 U CN 201520157858U CN 204644408 U CN204644408 U CN 204644408U
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- quenching
- bearing ring
- type bearing
- super large
- large type
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- 238000010791 quenching Methods 0.000 title claims abstract description 71
- 230000000171 quenching effect Effects 0.000 title claims abstract description 58
- 239000007921 spray Substances 0.000 title claims abstract description 21
- 238000002156 mixing Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 14
- 238000007654 immersion Methods 0.000 abstract description 6
- 238000007669 thermal treatment Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- -1 buck Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
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- Heat Treatment Of Articles (AREA)
Abstract
The utility model discloses a kind of location and spray mixing quenching device, comprise quenching tank (1), propulsion source, compressed air pipe (2) is provided with in quenching tank (1), (2) are provided with pore to compressed air pipe, within one week in quenching tank (1), be provided with jet pipe (4), jet pipe (4) is provided with nozzle (5), jet pipe connects propulsion source.The utility model can make super large type bearing ring immersion liquid quench cooled carry out spray quenching cooling simultaneously, improve super large type bearing ring different sites speed of cooling, reach the homogeneity improving super large type bearing ring quenching hardness and hardness, avoid the object producing quenching crack, thus drastically increase the thermal treatment quality of super large type bearing ring.
Description
Technical field
The utility model relates to super large type bearing ring
(diameter 400mm ~ 3800mm) heat-treatment quenching technology, relate generally to a kind of location and spray mixing quenching and device.
Background technology
During GCr15SiMn steel super large type bearing ring (diameter 400mm ~ 3800mm) heat-treatment quenching, generally direct by super large type bearing ring heating come out of the stove after hang in oil-quenching tank, dip quench medium (quenching oil, salt made from earth containing a comparatively high percentage of sodium chloride etc.) quench cooled, the bottom compressed air pipe bottom oil-quenching tank is opened in quenching simultaneously, make pressurized air that bottom quenching oil is stirred, can quench cooling rate be increased.Because super large type bearing ring size is large, effective thickness is thick, wall thickness difference is large, complex structure, after often causing super large type bearing ring to quench, hardness difference in hardness that is low, different sites is large, easy produces the technical quality problems such as quenching crack.
Utility model content
The purpose of this utility model proposes a kind of location to spray mixing quenching device, to reach the homogeneity improving super large type bearing ring quenching hardness and hardness, avoids producing quenching crack.
The purpose of this utility model can adopt following technical scheme to realize:
Described location sprays mixing quenching device, comprises quenching tank, propulsion source, in quenching tank, is provided with compressed air pipe, compressed air pipe is provided with pore; Within one week in quenching tank, be provided with jet pipe, jet pipe is provided with nozzle, jet pipe connects propulsion source.
Described propulsion source is liquor pump, input terminus by quenchant UNICOM in pipe connecting and quenching tank, liquid delivery side of pump connecting spray nozzle.
Described propulsion source also can be pressurized air.
The utility model can make super large type bearing ring immersion liquid quench cooled carry out spray quenching cooling simultaneously, improve super large type bearing ring different sites speed of cooling, reach the homogeneity improving super large type bearing ring quenching hardness and hardness, avoid the object producing quenching crack, thus drastically increase the thermal treatment quality of super large type bearing ring.
In sum, location of the present utility model spray mixing quenching method and device compared with now widely used immersion liquid (dip quench medium) quenching technology, there is following outstanding advantages: 1) can the raising quench cooling rate of high degree, thus improve the quenching hardness of super large type bearing ring; 2) by the flow velocity, flow, jet flow time etc. of adjustment hydrojet, the speed of cooling of the different cooling stages of quenching can be changed, make super large type bearing ring obtain desirable speed of cooling, reduce the susceptibility of cracking; 3) by the direction of adjustment hydrojet and position, can improve and change the quench cooling rate of super large type bearing ring specific position, improve the hardness of super large type bearing ring privileged site, obtain desirable hardness, and reduce the susceptibility of cracking.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model device.
Accompanying drawing 2 is the vertical view of Fig. 1.
In figure: 1, quenching tank, 2, compressed air pipe, 3, tracheae, 4 jet pipes, 5 nozzles, 6 oil pumps.
Embodiment
Accompanying drawings specific embodiment of the utility model.
Location described in the utility model as shown in accompanying drawing 1,2 sprays mixing quenching device, comprises quenching tank 1, propulsion source, and propulsion source is oil pump or pressurized air, and what the present embodiment adopted is oil pump 6.Quenching tank 1 inner bottom part is provided with compressed air pipe 2, compressed air pipe 2 is provided with pore, compressed air pipe 2 is connected with outside tracheae; Within one week in quenching tank 1, be evenly equipped with jet pipe 4, jet pipe 4 be provided with nozzle 5.The quantity of jet pipe 4 is four.Every root jet pipe connects an oil pump.The input terminus of oil pump 6 by quenchant UNICOM in pipe connecting and quenching tank, the output terminal connecting spray nozzle 4 of oil pump 6.In quenching tank, one week equal portion arranges four jet pipes 4, and namely each 90 degree, jet pipe 4 interval, jet pipe 4 is provided with nozzle 5, each jet pipe 4 is provided with 20 nozzles 5.Above-mentioned jet pipe 4 also available compression air as power.
Its principle of work is as follows: hang in quenching tank 1 after super large type bearing ring heating being come out of the stove, while carrying out immersion liquid quenching, oil pump 6 is as power (pressurized air etc. also can), quenchant is sprayed to super large type bearing ring privileged site with certain flow velocity, flow location, nozzle 5 quantity of location liquid-jet device, nozzle 5 jet direction, flow velocity, flow, jet flow time all can adjust, pressurized air can be opened simultaneously, accelerate the flowing of surrounding and bottom quenchant, improve and change the speed of cooling at these positions.Super large type bearing ring immersion liquid quench cooled carries out spray quenching cooling simultaneously, drastically increase super large type bearing ring different sites speed of cooling, reach the homogeneity improving super large type bearing ring quenching hardness and hardness, avoid the object producing quenching crack, thus drastically increase the thermal treatment quality of super large type bearing ring.
For super large type bearing ring as 240/1320 outer ring, material is GCr15SiMn, external diameter 1805mm, height 670mm, effective thickness 90mm, Heating temperature 825 DEG C, heat-up time 300min, the quenching of liquid-jet device quenching technology is located while carrying out immersion liquid quenching after coming out of the stove, using oil pump 6 as power (pressurized air etc. also can), by quenchant with certain flow velocity, flow location sprays to super large type bearing ring privileged site, nozzle 5 quantity of location liquid-jet device, nozzle 5 jet direction, flow velocity, flow, the jet flow time all can adjust and can open pressurized air simultaneously, accelerate the flowing of surrounding and bottom quenchant, improve and change the speed of cooling at these positions.
The location that theres is provided of the utility model is adopted to spray after mixing quenching method and device quench, its end hardness, internal diameter hardness, raceway hardness are 60 ~ 61HRC, not only hardness reaches the hardness requirement of JB/T 1255 " high-carbon-chromium bearing steel bearings parts heat treatment technics condition ", and hardness uniformity, flawless.
Based on principle of the present utility model, other liquid quenching medium, as salt made from earth containing a comparatively high percentage of sodium chloride bath, water, salt solution, buck, water base high molecular Using Polymer Aqueous Solution etc., also can realize location and spray mixing quenching method and device.
Claims (4)
1. a location sprays mixing quenching device, comprise quenching tank (1), propulsion source, compressed air pipe (2) is provided with in quenching tank (1), (2) are provided with pore to compressed air pipe, it is characterized in that: within one week in quenching tank (1), be provided with jet pipe (4), jet pipe (4) is provided with nozzle (5), jet pipe connects propulsion source.
2. location according to claim 1 sprays mixing quenching device, it is characterized in that: in quenching tank (1), one week equal portion arranges four jet pipes (4), each jet pipe (4) is provided with 20 nozzles (5).
3. location according to claim 1 sprays mixing quenching device, it is characterized in that: described propulsion source is liquor pump, its input terminus by pipe connecting and the interior quenchant UNICOM of quenching tank (1), liquid delivery side of pump connecting spray nozzle (5).
4. location according to claim 1 sprays mixing quenching device, it is characterized in that: described propulsion source also can be pressurized air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157858.9U CN204644408U (en) | 2015-03-20 | 2015-03-20 | A kind of location sprays mixing quenching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157858.9U CN204644408U (en) | 2015-03-20 | 2015-03-20 | A kind of location sprays mixing quenching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644408U true CN204644408U (en) | 2015-09-16 |
Family
ID=54097169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520157858.9U Active CN204644408U (en) | 2015-03-20 | 2015-03-20 | A kind of location sprays mixing quenching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204644408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690796A (en) * | 2020-06-10 | 2020-09-22 | 中国铁建高新装备股份有限公司 | Quenching device and quenching system |
-
2015
- 2015-03-20 CN CN201520157858.9U patent/CN204644408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690796A (en) * | 2020-06-10 | 2020-09-22 | 中国铁建高新装备股份有限公司 | Quenching device and quenching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |