CN103013446A - Chrome steel grinding kit - Google Patents
Chrome steel grinding kit Download PDFInfo
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- CN103013446A CN103013446A CN 201210496199 CN201210496199A CN103013446A CN 103013446 A CN103013446 A CN 103013446A CN 201210496199 CN201210496199 CN 201210496199 CN 201210496199 A CN201210496199 A CN 201210496199A CN 103013446 A CN103013446 A CN 103013446A
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- alumina particle
- abrasive
- test kit
- granularity
- grinding abrasive
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Abstract
The invention relates to a chrome steel grinding kit, belonging to the field of abrading agents. The grinding kit comprises a rough-grinding abrading agent, a fine-grinding abrading agent and a ultra-fine abrading agent. The abrading agents in the grinding kit not only limit the grain size of the abrasives, but also limit the sphericity of the abrasives. The abrading agent for each grinding stage is reasonably used in a matched manner, so that the grinding efficiency of a ceramic ball, in particular a silicon nitride ceramic ball baring sleeve ring is improved. Meanwhile, the pollution to the sleeve ring is reduced, and the grinding time is reduced.
Description
Technical field
The present invention relates to a kind of chromium steel and grind test kit, belong to the abrasive field.
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, ceramic ball bearing receives much concern because of its unique characteristics and wide application field.What at present, application was more is silicon nitride ceramic ball bearing.Its advantage is: tripping speed is high, precision stability good, staring torque is little, ceramic ball bearing rigidity is high, dried runnability is good, the life-span is long, is very suitable for keeping high precision, 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 Young's modulus is approximately high by 1/3, and under the condition of same load, the recoverable deformation 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 work-ing life that guarantees ceramic ball bearing, to the Ceramic Balls sphericity require highly, simultaneously owing to itself being 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 speed rotating, high to its running precision requirement simultaneously, for steady running, need its inner and outer ring to have lower roughness.
Summary of the invention
The purpose of this invention is to provide a kind of chromium steel and grind test kit, this grinding test kit comprises corase grind abrasive, correct grinding abrasive and super grinding abrasive, be mainly used in polishing silicon nitride ceramic ball bearing lasso, abrasive in this grinding test kit is used in conjunction with in grinding stages, mill efficiency can be reached high, few to the lasso pollution, the effect of raising mill efficiency, minimizing milling time.
A kind of chromium steel grinds test kit, is comprised of corase grind abrasive, correct grinding abrasive and super grinding abrasive, all contains alumina particle in above-mentioned three kinds of abrasives,
I. in the described corase grind abrasive, the granularity of alumina particle is 100 ~ 200 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.5 ~ 0.6;
II. in the described correct grinding abrasive, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.6 ~ 0.65;
III. in the described super grinding abrasive, the granularity of alumina particle is 0.1 ~ 5 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.65 ~ 0.75.
" degree of sphericity " of the present invention refers to the shape degree similar to spheroid of alumina particle.
In the preferred described corase grind abrasive of test kit of the present invention, correct grinding abrasive and the super grinding abrasive, alumina particle accounts for 5% ~ 50% of abrasive quality.
The preferred described corase grind abrasive of test kit of the present invention, correct grinding abrasive and super grinding abrasive by mass percentage, are comprised of following component:
Test kit of the present invention is preferred described corase grind abrasive, correct grinding abrasive and super grinding abrasive further, by mass percentage, is comprised of following component:
The preferred described dispersion agent of test kit of the present invention is at least a in ethylene glycol, polyoxyethylene glycol, polypropylene glycol, the glycerine.
In the preferred described corase grind abrasive of test kit 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 total mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle total mass.
In the preferred described correct grinding abrasive of test kit 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 total mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle total mass.
In the preferred described super grinding abrasive of test kit 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 total mass at least in the alumina particle, more preferably accounts for 60% ~ 80% of alumina particle total mass.
Above-mentioned three kinds of abrasives are as follows preparation preferably:
A kind of preparation method of abrasive comprises following processing step:
1. raw material weighing: accurate weighing raw material in proportion, and filter;
2. disperse: be dissolved in dispersion agent after tripoly phosphate sodium STPP, sodium laurylsulfonate and water glass are mixed in proportion;
3. filter: with 2. gained slurries filtration of step, add alumina particle after removing macrobead;
4. redispersion: with step 3. the gained slurry carry out ultra-sonic dispersion.
The invention has the beneficial effects as follows: the invention provides a kind of silicon nitride ceramics and grind test kit, this grinding test kit comprises corase grind abrasive, correct grinding abrasive and super grinding abrasive, grinding reagent in this test kit not only defines the particle diameter of abrasive, define simultaneously the sphericity of abrasive, use by the reasonable coordination to each used abrasive of grinding stage, Ceramic Balls is provided, especially the mill efficiency of silicon nitride ceramic ball bearing lasso, reduce simultaneously the pollution to lasso, reduce milling time.
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 ceramic grinding test kit is comprised of corase grind abrasive, correct grinding abrasive and super grinding abrasive, all contains alumina particle in above-mentioned three kinds of abrasives,
I. in the described corase grind abrasive, the granularity of alumina particle is 100 ~ 200 μ m, described alumina particle is spherical, and its degree of 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 total mass at least in the alumina particle;
II. in the described correct grinding abrasive, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its degree of 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 total mass at least in the alumina particle,
III. in the described super grinding abrasive, the granularity of alumina particle is 0.1 ~ 5 μ m, and described alumina particle is spherical, and its degree of 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 total mass at least in the alumina particle,
Described corase grind abrasive, correct grinding abrasive and super grinding abrasive by mass percentage, are comprised of following component:
Dispersion agent is polyoxyethylene 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 abrasives, the roughness of gained lasso is 0.015Ra.
Claims (10)
1. a chromium steel grinds test kit, it is characterized in that: formed by corase grind abrasive, correct grinding abrasive and super grinding abrasive, all contain alumina particle in above-mentioned three kinds of abrasives,
I. in the described corase grind abrasive, the granularity of alumina particle is 100 ~ 200 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.5 ~ 0.6;
II. in the described correct grinding abrasive, the granularity of alumina particle is 5 ~ 50 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.6 ~ 0.65;
III. in the described super grinding abrasive, the granularity of alumina particle is 0.1 ~ 5 μ m, and described alumina particle is spherical, and its degree of sphericity is 0.65 ~ 0.75.
2. test kit according to claim 1 is characterized in that: in described corase grind abrasive, correct grinding abrasive and the super grinding abrasive, alumina particle accounts for 5% ~ 50% of abrasive quality.
3. test kit according to claim 2 is characterized in that: described corase grind abrasive, correct grinding abrasive and super grinding abrasive by mass percentage, are comprised of following component:
4. test kit according to claim 3 is characterized in that: described dispersion agent is at least a in ethylene glycol, polyoxyethylene glycol, polypropylene glycol, the glycerine.
5. test kit according to claim 1 is characterized in that: in the described corase grind abrasive, granularity is that the quality of the alumina particle of 100 ~ 150 μ m accounts for 40% ~ 80% of alumina particle total mass at least in the alumina particle.
6. test kit according to claim 1 is characterized in that: in the described correct grinding abrasive, granularity is that the quality of the alumina particle of 10 ~ 20 μ m accounts for 40% ~ 80% of alumina particle total mass at least in the alumina particle.
7. test kit according to claim 1 is characterized in that: in the described super grinding abrasive, granularity is that the quality of the alumina particle of 0.5 ~ 2 μ m accounts for 40% ~ 80% of alumina particle total mass at least in the alumina particle.
8. test kit according to claim 5 is characterized in that: in the described corase grind abrasive, granularity is that the quality of the alumina particle of 20 ~ 50 μ m accounts for 60% ~ 80% of alumina particle total mass at least in the alumina particle.
9. test kit according to claim 6 is characterized in that: in the described correct grinding abrasive, granularity is that the quality of the alumina particle of 1 ~ 5 μ m accounts for 60% ~ 80% of alumina particle total mass at least in the alumina particle.
10. test kit according to claim 7 is characterized in that: in the described super grinding abrasive, granularity is that the quality of the alumina particle of 0.01 ~ 0.5 μ m accounts for 60% ~ 80% of alumina particle total mass at least in the alumina particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210496199 CN103013446A (en) | 2012-11-28 | 2012-11-28 | Chrome steel grinding kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210496199 CN103013446A (en) | 2012-11-28 | 2012-11-28 | Chrome steel grinding kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103013446A true CN103013446A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210496199 Pending CN103013446A (en) | 2012-11-28 | 2012-11-28 | Chrome steel grinding kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103013446A (en) |
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2012
- 2012-11-28 CN CN 201210496199 patent/CN103013446A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |