CN103009233A - Production process of ceramic ball bearing ring - Google Patents
Production process of ceramic ball bearing ring Download PDFInfo
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- CN103009233A CN103009233A CN 201210496354 CN201210496354A CN103009233A CN 103009233 A CN103009233 A CN 103009233A CN 201210496354 CN201210496354 CN 201210496354 CN 201210496354 A CN201210496354 A CN 201210496354A CN 103009233 A CN103009233 A CN 103009233A
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- alumina particle
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Abstract
The invention relates to a production process of a ceramic ball bearing ring and belongs to the field of bearings. The production process of the ceramic ball bearing ring comprises a ring processing and shaping process and a grinding and polishing process, wherein the grinding and polishing process comprises the steps of rough grinding, fine grinding and ultra-fine grinding; and grinding agents at all the grinding stages in the process comprise a rough grinding agent, a fine grinding agent and an ultra-fine grinding agent. The production process has the beneficial effects that the grinding agents are matched with one another when in use in all the grinding stages; and the effects that the grinding efficiency is high, the pollution to a ceramic body is less, the grinding efficiency is improved, and the grinding time is reduced can be achieved.
Description
Technical field
The present invention relates to a kind of production technology of ceramic ball bearing lasso, belong to field of bearings.
Background technology
Ball bearing is a kind of of rolling bearing, and the ball ball is contained in the centre of interior steel ring and outer rim, can bear larger load.Wherein, application receives much concern ceramic ball bearing because its unique characteristics reach widely.What at present, application was more is silicon nitride ceramic ball bearing.Its advantage is: limit speed is high, precision stability is good, staring torque is little, high, the dried runnability of ceramic ball bearing rigidity is good, the life-span is long, is very suitable for keeping high accuracy, long time running under high speed, high temperature and burn into radiation condition.In addition, the hardness ratio bearing steel of silicon nitride ceramics is high 1 times, and elastic modelling quantity is high by 1/3 approximately, and under the condition of same load, the strain of silicon nitride ceramics is little, so, use the machine tool chief axis of ceramic ball bearing to have good running accuracy.For running precision and the service life that guarantees ceramic ball bearing, to the Ceramic Balls sphericity require highly, simultaneously owing to itself be high-strength material, it is ground then more difficult.
The lasso of silicon nitride ceramic ball bearing generally adopts the chromium steel material to make, because silicon nitride ceramic ball bearing generally is used under the working environment of High Rotation Speed, simultaneously its running precision is required height, for stable operation, need its inner and outer ring to have lower roughness.
Summary of the invention
The production technology that the purpose of this invention is to provide a kind of ceramic ball bearing lasso, this technique comprises the technique of lasso machine-shaping and grinding and polishing, the method of described grinding and polishing comprises the step of corase grind, correct grinding and super grinding, and each grinding agent that grinds the stage comprises corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent in the method.These grinding agents are used in grinding stages, can reach the grinding efficiency height, ceramic body is polluted lack, and improve the effect of grinding efficiency, minimizing milling time.
A kind of production technology of ceramic ball bearing lasso, undertaken by following processing step:
1. machine-shaping: carry out cold roll after adopting lathe that the blank Vehicle Processing is circularized and expand technique, described cold rolling technology is with the basic machine-shaping of lasso, adopt heat treatment and subzero treatment: heat-treatment quenching hardness HRC60 ~ 63, cryogenic temperature are controlled at subzero 60 ℃ ~ subzero 90 ℃;
2. grinding and polishing: the workpiece that expands technique through cold roll carries out preliminary grinding and fine grinding technology, and plane, external diameter, endoporus, the raceway groove of lasso ground processing, reaches the dimensional accuracy of part; Carry out at last the fine abrasive operation, the raceway groove of bearing ring is carried out fine abrasive, reduce the roughness of raceway groove and improve the circularity of raceway groove, its roughness is less than 0.015Ra, and the step of described grinding and polishing is carried out as follows:
I. roughly grind: plane, external diameter, endoporus and raceway groove to lasso are roughly ground; In the described corase grind grinding agent, the granularity of alumina particle is 100 ~ 200 μ m, and described alumina particle is spherical, and its sphericity is 0.5 ~ 0.6;
II. finish grind: plane, external diameter, endoporus and raceway groove to lasso finish grind; In the described correct grinding grinding agent, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its sphericity is 0.6 ~ 0.65;
III. super grinding: the raceway groove to lasso carries out super grinding; In the described super grinding grinding agent, the granularity of alumina particle is 0.1 ~ 5 μ m, and described alumina particle is spherical, and its sphericity is 0.65 ~ 0.75.
" sphericity " of the present invention refers to the shape degree similar to spheroid of alumina particle.
The preferred described corase grind grinding agent of the production technology of ceramic ball bearing lasso of the present invention, correct grinding grinding agent and super grinding grinding agent are 1:1 ~ 1:4 with the mass ratio that grinds matrix.
The preferred described matrix of the production technology of ceramic ball bearing lasso of the present invention is water or kerosene.
In the preferred described corase grind grinding agent of the production technology of ceramic ball bearing lasso of the present invention, correct grinding grinding agent and the super grinding grinding agent, alumina particle accounts for 5% ~ 50% of grinding agent quality.
The preferred described corase grind grinding agent of the production technology of ceramic ball bearing lasso of the present invention, correct grinding grinding agent and super grinding grinding agent by mass percentage, are comprised of following component:
The production technology of ceramic ball bearing lasso of the present invention is preferred described corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent further, by mass percentage, is comprised of following component:
The preferred described dispersant of the production technology of ceramic ball bearing lasso of the present invention is at least a in ethylene glycol, polyethylene glycol, polypropylene glycol, the glycerine.
In the preferred described corase grind grinding agent of the production technology of ceramic ball bearing lasso of the present invention, granularity is that the quality of the alumina particle of 100 ~ 150 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle gross mass.
In the preferred described correct grinding grinding agent of the production technology of ceramic ball bearing lasso of the present invention, granularity is that the quality of the alumina particle of 10 ~ 20 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle gross mass.
In the preferred described super grinding grinding agent of the production technology of ceramic ball bearing lasso of the present invention, granularity is that the quality of the alumina particle of 0.5 ~ 2 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle gross mass.
Above-mentioned three kinds of grinding agents are as follows preparation preferably:
A kind of preparation method of grinding agent comprises following processing step:
1. raw material weighing: accurate weighing raw material in proportion, and filter;
2. disperse: be dissolved in dispersant after sodium phosphate trimer, dodecyl sodium sulfate and sodium metasilicate are mixed in proportion;
3. filter: with 2. gained slurries filtration of step, add alumina particle after removing bulky grain;
4. disperse again: with step 3. the gained slurry carry out ultrasonic dispersion.
The invention has the beneficial effects as follows: the production technology that the invention provides a kind of ceramic ball bearing lasso, this technique comprises the technique of lasso machine-shaping and grinding and polishing, the method of described grinding and polishing comprises the step of corase grind, correct grinding and super grinding, and each grinding agent that grinds the stage comprises corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent in the method.These grinding agents are used in grinding stages, can reach the grinding efficiency height, ceramic body is polluted lack, and improve the effect of grinding efficiency, minimizing milling time.
The specific embodiment
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but does not limit the present invention in any way.
Embodiment 1
A kind of production technology of ceramic ball bearing lasso, undertaken by following processing step:
1. machine-shaping: carry out cold roll after adopting lathe that the blank Vehicle Processing is circularized and expand technique, described cold rolling technology is with the basic machine-shaping of lasso, and adopt heat treatment and subzero treatment: heat-treatment quenching hardness HRC62, cryogenic temperature are controlled at subzero 70 ℃;
2. grinding and polishing: the workpiece that expands technique through cold roll carries out preliminary grinding and fine grinding technology, and plane, external diameter, endoporus, the raceway groove of lasso ground processing, reaches the dimensional accuracy of part; Carry out at last the fine abrasive operation, the raceway groove of bearing ring is carried out fine abrasive, reduce the roughness of raceway groove and improve the circularity of raceway groove, its roughness is less than 0.015Ra, and the step of described grinding and polishing is carried out as follows:
I. roughly grind: plane, external diameter, endoporus and raceway groove to lasso are roughly ground; In the described corase grind grinding agent, the granularity of alumina particle is 100 ~ 200 μ m, and described alumina particle is spherical, and its sphericity is 0.56, and granularity is that the quality of the alumina particle of 100 ~ 150 μ m accounts for 65% of alumina particle gross mass at least in the alumina particle;
II. finish grind: plane, external diameter, endoporus and raceway groove to lasso finish grind; In the described correct grinding grinding agent, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its sphericity is 0.65, and granularity is that the quality of the alumina particle of 10 ~ 20 μ m accounts for 70% of alumina particle gross mass at least in the alumina particle,
III. super grinding: in the described super grinding grinding agent, the granularity of alumina particle is 0.1 ~ 5 μ m, described alumina particle is spherical, and its sphericity is 0.75, and granularity is that the quality of the alumina particle of 0.5 ~ 2 μ m accounts for 70% of alumina particle gross mass at least in the alumina particle.
Described corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent by mass percentage, are comprised of following component:
Dispersant is polyethylene glycol.Be used for stage by stage polishing silicon nitride ceramic ball bearing lasso after 1:2 mixes in mass ratio with water with three kinds of grinding agents, the roughness of gained ceramic ferrule is 0.015Ra.
Claims (9)
1. the production technology of a ceramic ball bearing lasso is characterized in that: undertaken by following processing step:
1. machine-shaping: carry out cold roll after adopting lathe that the blank Vehicle Processing is circularized and expand technique, described cold rolling technology is with the basic machine-shaping of lasso, adopt heat treatment and subzero treatment: heat-treatment quenching hardness HRC60 ~ 63, cryogenic temperature are controlled at subzero 60 ℃ ~ subzero 90 ℃;
2. grinding and polishing: the workpiece that expands technique through cold roll carries out preliminary grinding and fine grinding technology, and plane, external diameter, endoporus, the raceway groove of lasso ground processing, reaches the dimensional accuracy of part; Carry out at last the fine abrasive operation, the raceway groove of bearing ring is carried out fine abrasive, reduce the roughness of raceway groove and improve the circularity of raceway groove, its roughness is less than 0.015Ra, and the step of described grinding and polishing is carried out as follows:
I. roughly grind: plane, external diameter, endoporus and raceway groove to lasso are roughly ground; In the described corase grind grinding agent, the granularity of alumina particle is 100 ~ 200 μ m, and described alumina particle is spherical, and its sphericity is 0.5 ~ 0.6;
II. finish grind: plane, external diameter, endoporus and raceway groove to lasso finish grind; In the described correct grinding grinding agent, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its sphericity is 0.6 ~ 0.65;
III. super grinding: the raceway groove to lasso carries out super grinding; In the described super grinding grinding agent, the granularity of alumina particle is 0.1 ~ 5 μ m, and described alumina particle is spherical, and its sphericity is 0.65 ~ 0.75.
2. technique according to claim 1 is characterized in that: described corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent are 1:1 ~ 1:4 with the mass ratio that grinds matrix.
3. technique according to claim 1, it is characterized in that: described matrix is water or kerosene.
4. technique according to claim 1 is characterized in that: in described corase grind grinding agent, correct grinding grinding agent and the super grinding grinding agent, alumina particle accounts for 5% ~ 50% of grinding agent quality.
5. technique according to claim 4 is characterized in that: described corase grind grinding agent, correct grinding grinding agent and super grinding grinding agent by mass percentage, are comprised of following component:
6. technique according to claim 5 is characterized in that: described dispersant is at least a in ethylene glycol, polyethylene glycol, polypropylene glycol, the glycerine.
7. technique according to claim 1 is characterized in that: in the described corase grind grinding agent, granularity is that the quality of the alumina particle of 100 ~ 150 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle.
8. technique according to claim 1 is characterized in that: in the described correct grinding grinding agent, granularity is that the quality of the alumina particle of 10 ~ 20 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle.
9. technique according to claim 1 is characterized in that: in the described super grinding grinding agent, granularity is that the quality of the alumina particle of 0.5 ~ 2 μ m accounts for 40% ~ 80% of alumina particle gross mass at least in the alumina particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210496354 CN103009233A (en) | 2012-11-28 | 2012-11-28 | Production process of ceramic ball bearing ring |
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| CN 201210496354 CN103009233A (en) | 2012-11-28 | 2012-11-28 | Production process of ceramic ball bearing ring |
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| CN103009233A true CN103009233A (en) | 2013-04-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317440A (en) * | 2013-06-27 | 2013-09-25 | 常州克劳诺斯特种轴承制造有限公司 | Bearing sleeve ring grinding process floating support device |
| CN103551956A (en) * | 2013-10-18 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining bearing ring belonging to short shaft parts of aircraft engine |
| CN103692302A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing excircle grinding process |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
| CN107150264A (en) * | 2017-05-24 | 2017-09-12 | 上海市轴承技术研究所 | Sphere precision machining method after ceramic coated |
-
2012
- 2012-11-28 CN CN 201210496354 patent/CN103009233A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317440A (en) * | 2013-06-27 | 2013-09-25 | 常州克劳诺斯特种轴承制造有限公司 | Bearing sleeve ring grinding process floating support device |
| CN103317440B (en) * | 2013-06-27 | 2015-06-24 | 常州克劳诺斯特种轴承制造有限公司 | Bearing sleeve ring grinding process floating support device |
| CN103551956A (en) * | 2013-10-18 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining bearing ring belonging to short shaft parts of aircraft engine |
| CN103551956B (en) * | 2013-10-18 | 2016-08-17 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of processing method of bearing ring belonging to short shaft parts of aircraft engine |
| CN103692302A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing excircle grinding process |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN103692303B (en) * | 2013-12-23 | 2016-02-10 | 河南金鑫精密轴承制造有限公司 | Accurate angular contact ball bearing inner ring grinding process |
| CN103692302B (en) * | 2013-12-23 | 2016-05-11 | 河南金鑫精密轴承制造有限公司 | Precision corner contact ball bearing peripheral milling processing technology |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
| CN106002499B (en) * | 2016-08-08 | 2017-11-14 | 洛阳轴研科技股份有限公司 | A kind of Ginding process of flexible bearing lasso external diameter |
| CN107150264A (en) * | 2017-05-24 | 2017-09-12 | 上海市轴承技术研究所 | Sphere precision machining method after ceramic coated |
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Application publication date: 20130403 |