CN103468901B - Bearing cone rolling body Anti-cracking equipment and technique - Google Patents
Bearing cone rolling body Anti-cracking equipment and technique Download PDFInfo
- Publication number
- CN103468901B CN103468901B CN201310430252.3A CN201310430252A CN103468901B CN 103468901 B CN103468901 B CN 103468901B CN 201310430252 A CN201310430252 A CN 201310430252A CN 103468901 B CN103468901 B CN 103468901B
- Authority
- CN
- China
- Prior art keywords
- rolling body
- outer case
- die mould
- cracking
- temperature
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to bearing cone rolling body Anti-cracking equipment and technique, for military products bearing, belong to bearing mnanufacture technical field.Anti-cracking equipment comprises thermostatted, conductor, single control shaker, outer case, netted casing, well heater; Technique is: die mould-Anti-cracking operation-heat-treatment of annealing; Tapered roller body is by entering Anti-cracking equipment after usual way die mould, when tapered roller body die mould Hou Congliao road flows into netted casing, under the effect of shaker, make the temperature of the temperature of rolling body and liquid oil reach balance, until netted casing pressure is full, slinging, it is dry to drench, and dries fast, high-temp combustion when preventing from annealing, then proceed to heat-treatment of annealing stabilizing tissue, be conducive to the quality controlling and strengthen tapered roller body; Solving die mould has crackle to rely on postorder flaw detection select and produce the problem of leak source, and the crucial military use product that solves, to the strict demand of quality, realizes military products and ensures reliable strong, save the advantage of flaw detection labor force simultaneously; Working efficiency is high, and production consuming cost is low.
Description
Technical field the present invention relates to bearing roller die mould Anti-cracking equipment and technique, specifically relates to bearing cone rolling body Anti-cracking equipment and technique, for military products bearing, belongs to bearing mnanufacture technical field.
Background technology
Military products bearing 2007112X-269A/3 tapered roller body is in Z31-25 roller automatic cold header die mould process, owing to producing high temperature by high strength extrusion molding, the physical property of material is changed, the instantaneous volume of die mould backed off after random mould expands slightly, under air themperature effect, cooling quick refrigeration shrinks rapidly simultaneously, the physical property of material changes again, when the temperature difference now caused due to the local difference of extrusion process density of material and cooling meat, local velocity's inequality makes the centripetal portion of rolling body appearance tear (winter is even more serious) fast, form crackle.This crackle occurs along tapered roller body length direction often, this be due to the raw fibre direction of rolling body and conically shaped body easily in bus heat build-up phenomenon caused by.
How to solve this difficult problem, become the difficult problem perplexing for two more than ten years, the method that past utilizes lime to bury for preventing crackle from taking, to alleviate cooling rate, but the thickness of the homogeneity of blanking and lime is difficult to control, in addition measure lacks scientific basis, effect does not reach requirement, and crackle scrap rate accounts for more than 20%, and loss is serious, the crackle brainstorm subject of this specification product is more and more outstanding, urgently to be resolved hurrily.
At present, military struggle is increasingly sophisticated in the world, 2007112X-269A/3 tapered roller body die mould crackle relies on postpartum hand picking to be the requirement that can not meet quality product and bearing work reliability completely, production efficiency can not adapt to existing work pattern, ensures that 100% flawless does not have technical controlling means.
Summary of the invention
The present invention is the defect in view of above technical problem exists, the whole process crackle number terminated to grinding from die mould for realizing tapered roller body is the target of zero, provide a kind of bearing cone rolling body Anti-cracking equipment and technique, this invention solves die mould has crackle to rely on postorder flaw detection select and produce the problem of leak source, the crucial military use product that solves is to the strict demand of quality, realizing military products ensures reliable strong, adapt to modernization military combat ability, raise labour efficiency simultaneously, reduce loss due to spoiled work rate.
To achieve these goals, technical scheme of the present invention is: bearing cone rolling body Anti-cracking equipment and technique, it is characterized in that Anti-cracking equipment comprises thermostatted, conductor, single control shaker, outer case, netted casing, well heater; In whole device, outer case is positioned in the groove of hole and does body abutment, netted casing by single control shaker transverse beam lifting in the middle of outer case, make netted casing to outer case up and down identity distance from equal, encircle so that fluid is uniform, well heater is anchored in outer case, do partiting thermal insulation process simultaneously, outside casing, be provided with part thermostatted, have conductor at outer case peripheral hardware simultaneously, conductor and thermostatted connect, and realize temperature control and energising.
Bearing cone rolling body Anti-cracking technique is: die mould-Anti-cracking operation-heat-treatment of annealing, tapered roller body is by entering Anti-cracking equipment after usual way die mould, when tapered roller body die mould Hou Congliao road flows into netted casing, now heating fluid oil, when fluid is adjusted to the temperature suitable with rolling body by thermostatted, start shaker, under the effect of shaker, make the temperature of the temperature of rolling body and liquid oil reach balance, until netted casing pressure is full, slinging, it is dry to drench, dry fast, high-temp combustion when preventing from annealing, then proceed to heat-treatment of annealing stabilizing tissue, rolling body is heated 2 hours, temperature reaches 750 ~ 800 DEG C, then insulation 2-3 hours is carried out, truce furnace cooling, be 0 by rolling body crackle after such technological operation.As shown in Figure 2, for heat-treatment of annealing stabilizing tissue technique instructs curve.
Rolling body is done underannealing process, its technological principle is, workpiece heat to higher than and lower than, and stop 2 ~ 3 hours in this temperature, then slow cooling is got off, and part perlite generation recrystallization is phase-changed into austenite, the perlite that sheet interlayer spacing of getting back after cooling is larger, speed of cooling slow perlite synusia is thick, hardness is lower, refinement crystal grain.Because Heating temperature is low, efficiency is high, so use.
Described rolling body, material G9Cr18 is high carbon chromium stainless bearing steel, is that the Special Products such as military products bearing are used.G9Cr18 has high hardness and anti-temper resistance, quenching deepfreeze and low-temperaturetempering after have higher wear resistance, elasticity, hardness and contact fatigue strength, excellent erosion resistance and good low temperature properties, machinability and cold punching good.
Beneficial effect of the present invention is: tooling structure is simple, moulding new meaning, and body is created, and is easy to make, cheap, with automatically controlled part and the specialist equipment forming complete one around fluid, is more conducive to the quality controlling and strengthen tapered roller body; Solving die mould has crackle to rely on postorder flaw detection select and produce the problem of leak source, the crucial military use product that solves is to the strict demand of quality, realizing military products ensures reliable strong, and adapt to modernization military combat ability, the scrap rate simultaneously with product reduces, saves the advantage of flaw detection labor force; Working efficiency is high, saving mould, saving hold facility rate, and production consuming cost is low.
Accompanying drawing explanation
Fig. 1 is Anti-cracking equipment configuration schematic diagram of the present invention.
Fig. 2 is that heat-treatment of annealing stabilizing tissue technique instructs curve.
Fig. 3 is Anti-cracking equipment material road structure iron.
In figure, 1, thermostatted, 2, conductor, 3, single control shaker, 4, outer case, 5, netted casing, 6, well heater, 7, fluid, 8, material road, 9, rolling body.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Bearing cone rolling body Anti-cracking equipment and technique, is characterized in that Anti-cracking equipment comprises thermostatted 1, conductor 2, single control shaker 3, outer case 4, netted casing 5, well heater 6; In whole device, outer case 4 is positioned in the groove of hole and does body abutment, netted casing 5 by single control shaker 3 transverse beam lifting in the middle of outer case 4, make netted casing 5 to outer case 4 up and down identity distance from equal, encircle so that fluid is uniform, well heater 6 is anchored in outer case 4, do partiting thermal insulation process simultaneously, be provided with thermostatted 1 at casing outer 4, outside outer case 4, be provided with conductor 2 simultaneously, conductor 2 and thermostatted 1 connect, and realize temperature control and energising.
Bearing cone rolling body Anti-cracking technique is: die mould-Anti-cracking operation-heat-treatment of annealing, tapered roller body is by entering Anti-cracking equipment after usual way die mould, when tapered roller body die mould Hou Congliao road flows into netted casing, now heating fluid oil, when fluid is adjusted to the temperature suitable with rolling body by thermostatted, start shaker, under the effect of shaker, make the temperature of the temperature of rolling body and liquid oil reach balance, until netted casing pressure is full, slinging, it is dry to drench, dry fast, high-temp combustion when preventing from annealing, then proceed to heat-treatment of annealing stabilizing tissue, rolling body is heated 2 hours, temperature reaches 750 ~ 800 DEG C, then insulation 2-3 hours is carried out, truce furnace cooling, be 0 by rolling body crackle after such technological operation.
Rolling body is done underannealing process, its technological principle is, workpiece heat to higher than and lower than, and stop 2 ~ 3 hours in this temperature, then slow cooling is got off, and part perlite generation recrystallization is phase-changed into austenite, the perlite that sheet interlayer spacing of getting back after cooling is larger, speed of cooling slow perlite synusia is thick, hardness is lower, refinement crystal grain.Because Heating temperature is low, efficiency is high, so use.
Embodiment 1
Rolling body is after roller automatic cold header die mould, rolling body temperature is 110 DEG C, netted casing is flowed into from material road, now by the adjustment heating fluid oil of thermostatted, when temperature reaches 130 DEG C, start shaker, under the effect of shaker, make the temperature of the temperature of rolling body and liquid oil reach balance, through 4 hours, until netted casing pressure is full, being sling by rolling body, it is dry to drench, dry fast, high-temp combustion when preventing from annealing, then proceed to heat-treatment of annealing stabilizing tissue, heat 2 hours temperature and rise to 770 DEG C, be incubated and cool to normal temperature with the furnace again in 2.5 hours, so far the whole technological process of tissue stabilization is completed, the then rear thread work such as row machining again.
Claims (2)
1. bearing cone rolling body Anti-cracking equipment, is characterized in that comprising thermostatted, conductor, single control shaker, outer case, netted casing, well heater; In whole device, outer case is positioned in the groove of hole and does body abutment, netted casing by single control shaker transverse beam lifting in the middle of outer case, make netted casing to outer case up and down identity distance from equal, encircle so that fluid is uniform, well heater is anchored in outer case, do partiting thermal insulation process simultaneously, have thermostatted at outer case peripheral hardware, have conductor at outer case peripheral hardware simultaneously, conductor and thermostatted connect, and realize temperature control and energising.
2.
according to claim 1bearing cone rolling body Anti-cracking is equipped, and it is characterized in that bearing cone rolling body Anti-cracking technique is: die mould-Anti-cracking operation-heat-treatment of annealing, tapered roller body is by entering Anti-cracking equipment after usual way die mould, when tapered roller body die mould Hou Congliao road flows into netted casing, now heating fluid oil, when fluid is adjusted to the temperature suitable with rolling body by thermostatted, start shaker, under the effect of shaker, make the temperature of the temperature of rolling body and liquid oil reach balance, until netted casing pressure is full, slinging, it is dry to drench, dry fast, high-temp combustion when preventing from annealing, then proceed to heat-treatment of annealing stabilizing tissue, rolling body is heated 2 hours, temperature reaches 750 ~ 800 DEG C, then insulation 2-3 hours is carried out, truce furnace cooling, be 0 by rolling body crackle after such technological operation, described rolling body, material G9Cr18 is high carbon chromium stainless bearing steel, is that military products bearing Special Products is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430252.3A CN103468901B (en) | 2013-09-22 | 2013-09-22 | Bearing cone rolling body Anti-cracking equipment and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430252.3A CN103468901B (en) | 2013-09-22 | 2013-09-22 | Bearing cone rolling body Anti-cracking equipment and technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103468901A CN103468901A (en) | 2013-12-25 |
| CN103468901B true CN103468901B (en) | 2015-09-30 |
Family
ID=49793941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310430252.3A Expired - Fee Related CN103468901B (en) | 2013-09-22 | 2013-09-22 | Bearing cone rolling body Anti-cracking equipment and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103468901B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613829A (en) * | 1984-06-18 | 1986-01-09 | Hitachi Metals Ltd | Cooling device for hardening |
| CN101487078A (en) * | 2009-02-26 | 2009-07-22 | 武汉科技学院 | Stirring inner water cooling isothermal quench salt bath |
| CN101749323A (en) * | 2008-11-28 | 2010-06-23 | 上海钢球厂 | Method for manufacturing steel ball for fan bearing |
| CN102071295A (en) * | 2010-12-31 | 2011-05-25 | 无锡巨力重工机械有限公司 | Novel swinging vibration quenching cooling device |
| JP2012122098A (en) * | 2010-12-08 | 2012-06-28 | Dowa Thermotech Kk | Quenching method and quenching apparatus |
| CN202465804U (en) * | 2012-02-29 | 2012-10-03 | 南京欧亚炉业有限责任公司 | Feed frame structure for hardening furnace |
| CN103014284A (en) * | 2012-12-19 | 2013-04-03 | 洛阳宜华滚动体有限公司 | Process for modifying GCr15 steel for manufacturing tapered roller |
-
2013
- 2013-09-22 CN CN201310430252.3A patent/CN103468901B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613829A (en) * | 1984-06-18 | 1986-01-09 | Hitachi Metals Ltd | Cooling device for hardening |
| CN101749323A (en) * | 2008-11-28 | 2010-06-23 | 上海钢球厂 | Method for manufacturing steel ball for fan bearing |
| CN101487078A (en) * | 2009-02-26 | 2009-07-22 | 武汉科技学院 | Stirring inner water cooling isothermal quench salt bath |
| JP2012122098A (en) * | 2010-12-08 | 2012-06-28 | Dowa Thermotech Kk | Quenching method and quenching apparatus |
| CN102071295A (en) * | 2010-12-31 | 2011-05-25 | 无锡巨力重工机械有限公司 | Novel swinging vibration quenching cooling device |
| CN202465804U (en) * | 2012-02-29 | 2012-10-03 | 南京欧亚炉业有限责任公司 | Feed frame structure for hardening furnace |
| CN103014284A (en) * | 2012-12-19 | 2013-04-03 | 洛阳宜华滚动体有限公司 | Process for modifying GCr15 steel for manufacturing tapered roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103468901A (en) | 2013-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107138660B (en) | A kind of high-carbon-chromium bearing steel warm-rolling loop forming method for realizing tissue nodularization | |
| CN103849746A (en) | Thermal treatment process for 40CrNiMoA core rod and 40CrNiMoA core rod obtained through process | |
| CN106350643B (en) | A kind of large mold Heat-Treatment of Steel method | |
| CN103170704B (en) | A kind of special thick middle, high-carbon and the flame cutting technique of steel alloy steel plate | |
| CN104561504A (en) | Heat treatment method for one-piece casting hot-rolled strip supporting roller | |
| CN103834792A (en) | Continuous roller type quenching technical method for steel plate | |
| CN101660025B (en) | Medium frequency induction hardening process of super large diameter bearing steel castings | |
| CN104907770A (en) | Processing process of tetragonal nut | |
| CN101831535B (en) | Heat treatment method after forging of ultra-supercritical high and medium pressure rotor steel | |
| CN103805764B (en) | A kind of hot rolling technology method of refinement height manganese austenite crystalline grain of steel | |
| CN109396759B (en) | Forging-rolling combined manufacturing method for 980 steel large-diameter cylinder for deep submergence | |
| CN106734800A (en) | A kind of stainless steel knife forging technology | |
| CN103468901B (en) | Bearing cone rolling body Anti-cracking equipment and technique | |
| CN104630443B (en) | Large-scale cylindrical shell section heat treatment method | |
| CN103572024B (en) | A kind of fastening piece cold-working steel wire rod without phase transformation fast softening treatment process | |
| CN106755763A (en) | A kind of H13 steels extrusion die high temperature quenching technical | |
| CN204385238U (en) | A kind of medium and small bar of quenched and tempered steel or tubing continuous refining heat treatment production line device | |
| CN103557235A (en) | Manufacturing method for bearing roller needle | |
| CN103614521A (en) | Medium carbon steel material large diesel engine output shaft tempering process | |
| CN103526007B (en) | Heat treatment process of medium-thickness non-quenched tempered plastic mold steel plate | |
| CN106011397B (en) | 42CrMo bars control water quenching heat-treatment technology method | |
| CN206052090U (en) | A kind of prestressed anchor annealing device | |
| CN105821181B (en) | A kind of heat treatment method of metal | |
| CN203382799U (en) | Roller rod composite normalizing and annealing furnace | |
| CN107641705A (en) | A kind of Technology for Heating Processing of steel rolling ring forging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jun Inventor before: Wang Maogeng Inventor before: Li Yun Inventor before: Kong Da Inventor before: Li Cailin Inventor before: Yu Xiaoyan Inventor before: Meng Fanchao Inventor before: Ji Enjie Inventor before: Wang Xingguo Inventor before: Zou Qinghe |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170911 Address after: 441000 three sets of South Street, Xiangcheng District, Hubei, Xiangfan Patentee after: Zhang Jun Address before: 116200 Bay Industrial Zone, Pu Wan New District, Liaoning, Dalian Patentee before: Dalian Dongxin Large-Scale Bearing Roller Co., Ltd. |
|
| 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: 20150930 Termination date: 20170922 |