CN104786164B - Special large-diameter diamond grinding wheel for lapping silicon nitride ceramic ball and manufacturing method of diamond grinding wheel - Google Patents
Special large-diameter diamond grinding wheel for lapping silicon nitride ceramic ball and manufacturing method of diamond grinding wheel Download PDFInfo
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- CN104786164B CN104786164B CN201510254609.6A CN201510254609A CN104786164B CN 104786164 B CN104786164 B CN 104786164B CN 201510254609 A CN201510254609 A CN 201510254609A CN 104786164 B CN104786164 B CN 104786164B
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- base plate
- abrasive
- aluminum base
- bonding agent
- grinding wheel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
Abstract
The invention discloses a special large-diameter diamond grinding wheel for lapping a silicon nitride ceramic ball and a manufacturing method of the diamond grinding wheel. A circular plate is used, and the grinding wheel comprises a base material and a grinding body, wherein a mounting hole is formed in the middle; the base material is an aluminum substrate; the grinding body is arranged in a groove of the aluminum substrate by heating, pressing, hardening and molding diamond and resins; the aluminum substrate and the grinding body are tightly combined together; the diameter of the product is 800-1000mm; the radial diameter of the ring end working face of the grinding body is 200-240mm; the porosity is 5 percent or below; the product surface is flat; a deformation phenomenon is avoided; and the grinding wheel is used for lapping a silicon nitride ceramic bearing ball. The diamond concentration of the grinding body is 75-200 percent, the volume of binding agents accounts for 50-81.25 percent of the grinding body part, the binding agents include phenolic resin, chromic oxide powder, magnesium oxide powder, copper powder, green silicon carbide micro powder and boron carbide micro powder. The grinding wheel is used for the lapping process of the silicon nitride ceramic bearing ball, the machined ball precision reaches G2 international standard, and the grinding wheel is environment-friendly and pollution-free during use.
Description
Technical field
The present invention relates to grinding-material, i.e., the special major diameter skive of a kind of silicon nitride ceramic ball lappingout and making side
Method.
Background technology
In recent years, with social progress and the high speed development of science and technology, the use environment and condition of bearing are increasingly
Variation, the structure, material capability to bearing require to work under also more and more higher, some high-tech areas and some special environments
Machinery, the such as industry such as Aero-Space, nuclear energy, metallurgy, chemical industry, oil, instrument, electronics, pharmacy, need in high temperature, high speed, height
Work under the special environment such as precision, vacuum, nonmagnetic, oil-free lubrication, strong acid, highly basic.Under these special environments, new requirement is only
Only rely on traditional metal bearing can not meet, therefore silicon nitride ceramics bearing becomes machine work material technology revolution
Mark.
Silicon nitride ceramics bearing ball is the vital part of silicon nitride ceramics bearing.Its grinding being divided into
In the stage, because the hardness of silicon nitride ceramics bearing ball, abrasion resistance are very high, out-of-roundness is larger, the lappingout of silicon nitride ceramics bearing ball
The characteristics of having which unique, is ground using cast iron plate more than domestic existing processing mode, adds grinding fluid, Buddha's warrior attendant in process of lapping
The abrasive materials such as stone micropowder, boron carbide, so as to reach the grinding to silicon nitride ceramic ball, this method falls behind relatively and pollutes tight
Weight.External advanced silicon nitride ceramic ball polish at present all uses special diamond lap emery wheel, though its grinding quickening, essence
Degree is higher, it is low to consume energy, pollute little.But its grinding wheel diameter is less, and only 200-300mm, efficiency are low, ring end work surface be repeatedly into
Type, it is spliced, so as to have impact on its grinding speed and precision.
The content of the invention
It is an object of the invention to provide a kind of special major diameter skive of silicon nitride ceramic ball lappingout and manufacture method.
The special major diameter skive of this silicon nitride ceramic ball lappingout, is circular sheet material, and the emery wheel includes base material
And abrasive body, there is an installing hole centre, and base material is for [shape is abrasive body in the groove of base material side, it is characterised in that base material is aluminum
Substrate processed, abrasive body be diamond and the heated compacting hardened forming of resin in the groove of aluminum base plate, aluminum base plate and grind
Both mill bodies are closely linked, product diameter 800-1000mm, abrasive body ring end work surface radial direction 200-240MM, pore
, below 5%, product surface is smooth for rate, distortion free, for the lappingout operation of silicon nitride ceramics bearing ball.
The special major diameter skive manufacture method of this silicon nitride ceramic ball lappingout, it is characterised in that step is as follows：
First, standby aluminum base plate：
According to the dimensioned aluminum base plate of customer demand product；
2nd, standby abrasive and bonding agent：
A, abrasive：Diadust, the diamond concentration of abrasive body are accounted for and are ground for 75%-200%, i.e. diadust volume
The 18.75%-50% of mill body volume, its particle size range are -5000 mesh of 1000 mesh；
B, bonding agent：Its volume accounts for the 50%-81.25% of grinding body portion, and the concrete composition of bonding agent and part by weight are such as
Under：
Phenolic resin, weight account for the 45%-70% of bonding agent gross weight,；
Chromium oxide powder, weight account for the 2%-10% of bonding agent gross weight；
Magnesia powder, weight account for the 6%-15% of bonding agent gross weight；
Copper powder, weight account for the 10%-15% of bonding agent gross weight；
Green silicon carbide powder, weight account for the 5%-10% of bonding agent gross weight；
Boron carbide micro powder, weight account for the 6-10% of bonding agent gross weight；
3rd, batch mixing：
1st, diadust and phenolic resin are added into ball mill grinding, mixing 3 hours；
2nd, chromium oxide, magnesium oxide are added into ball mill grinding, mixing 2 hours again；
3rd, copper powder, green silicon carbide, boron carbide are eventually adding, then are ground, is mixed 1 hour；
4th, grinding, mixed material are sieved through into sieve with ultrasonic activation, will be the granule of conglomeration in raw material fully dispersed, it is ensured that former
Material it is uniform with it is loose；
4th, it is die-filling：
1st, clean aluminum base plate, it is ensured that without oil stain, free from admixture in aluminum base plate groove；
2nd, mixed abrasive is taken, is added in the groove of aluminum base plate, will be raw material rake uniform with claw, then with scraping mould
Material is struck off by frock；
3rd, top board is covered in and is filled within the groove of abrasive；
5th, suppress：
1st, the aluminum base plate for installing abrasive is put in press；
2nd, the aluminum base plate temperature for installing abrasive is heated to into 100 DEG C -120 DEG C, is incubated 8 hours, in making abrasive
Phenolic resin softens completely, is now pressurizeed using more than 3000T press, abrasive is pressed into regulation according to design requirement thick
Degree；
3rd, aluminum base plate temperature is improved, phenolic resin starts to solidify and hardens when temperature rises to 150 DEG C -200 DEG C, insulation
Pressurize makes its fully hardened molding for 10 hours；
6th, depanning：Top board is taken out after aluminum base plate is cooled to room temperature；
7th, machining, makes its profile reach the standard that client and enterprise specify according to Design and Machining；
8th, by outward appearance, hardness, size, the depth of parallelism, axiality, planarity checking, qualified rear packaging, warehouse-in.
The demand of silicon nitride ceramic ball is increasing now, and the processing technique of silicon nitride ceramic ball requires higher, needs
Compared with the skive of large working area, the special major diameter boart boart wheel diameter of silicon nitride ceramic ball lappingout of the present invention can reach
1000MM, radially up to 240MM, processing ball precision reaches G2 international standards to integral loop end work surface, environment friendly and pollution-free during use.
Description of the drawings：
Fig. 1：It is the grinding wheel structure schematic diagram of the present invention
In figure：1. aluminum base plate, 2. abrasive body, 3. installing hole.
Specific embodiment
It is described as follows with reference to specific embodiment：
Embodiment one, the special major diameter skive of this silicon nitride ceramic ball lappingout is circular sheet material, the emery wheel
Including base material and abrasive body, there is installing hole centre, and base material is for [shape, is abrasive body in the groove of base material side, and base material is aluminum base
Plate, abrasive body be diamond and the heated compacting hardened forming of resin in the groove of aluminum base plate, aluminum base plate and abrasive body
Both are closely linked, product diameter 800mm, abrasive body ring end work surface radial direction 200MM, the porosity 3%, product table
Face is smooth, distortion free, for the lappingout operation of silicon nitride ceramics bearing ball.
The special major diameter skive manufacture method of this silicon nitride ceramic ball lappingout, it is characterised in that step is as follows：
First, standby aluminum base plate：
According to the dimensioned aluminum base plate of customer demand product；
2nd, standby abrasive and bonding agent：
A, abrasive：Diadust, the diamond concentration of abrasive body is 80%, i.e. diadust volume accounts for abrasive body
The 20% of volume, its granularity are 1500 mesh；
B, bonding agent：Its volume accounts for the 80% of grinding body portion, and the concrete composition of bonding agent and part by weight are as follows：
Phenolic resin, weight account for the 57% of bonding agent gross weight；
Chromium oxide powder, weight account for the 6% of bonding agent gross weight；
Magnesia powder, weight account for the 10% of bonding agent gross weight；
Copper powder, weight account for the 12% of bonding agent gross weight；
Green silicon carbide powder, weight account for the 7% of bonding agent gross weight；
Boron carbide micro powder, weight account for the 8% of bonding agent gross weight；
3rd, batch mixing：
1st, diadust and phenolic resin are added into ball mill grinding, mixing 3 hours；
2nd, chromium oxide, magnesium oxide are added into ball mill grinding, mixing 2 hours again；
3rd, copper powder, green silicon carbide, boron carbide are eventually adding, then are ground, is mixed 1 hour；
4th, grinding, mixed material are sieved through into sieve with ultrasonic activation, will be the granule of conglomeration in raw material fully dispersed, it is ensured that former
Material it is uniform with it is loose；
4th, it is die-filling：
1st, clean aluminum base plate, it is ensured that without oil stain, free from admixture in aluminum base plate groove；
2nd, mixed abrasive is taken, is added in the groove of aluminum base plate, will be raw material rake uniform with claw, then with scraping mould
Material is struck off by frock；
3rd, top board is covered in and is filled within the groove of abrasive；
5th, suppress：
1st, the aluminum base plate for installing abrasive is put in press；
2nd, the aluminum base plate temperature for installing abrasive is heated to into 100 DEG C -120 DEG C, is incubated 8 hours, in making abrasive
Phenolic resin softens completely, is now pressurizeed using more than 3000T press, abrasive is pressed into regulation according to design requirement thick
Degree；
3rd, aluminum base plate temperature is improved, phenolic resin starts to solidify and hardens when temperature rises to 150 DEG C -200 DEG C, insulation
Pressurize makes its fully hardened molding for 10 hours；
6th, depanning：Top board is taken out after aluminum base plate is cooled to room temperature；
7th, machining, makes its profile reach the standard that client and enterprise specify according to Design and Machining；
8th, by outward appearance, hardness, size, the depth of parallelism, axiality, planarity checking, qualified rear packaging, warehouse-in.
Embodiment two, the special major diameter skive of this silicon nitride ceramic ball lappingout is circular sheet material, the emery wheel
Including base material and abrasive body, there is an installing hole centre, base material for [shape, is abrasive body in the groove of base material side, it is characterised in that
Base material is aluminum base plate, and abrasive body is diamond and the heated compacting hardened forming of resin in the groove of aluminum base plate, aluminum
Both substrate and abrasive body are closely linked, product diameter 1000mm, abrasive body ring end work surface radial direction 240MM, pore
, below 4%, product surface is smooth for rate, distortion free, for the lappingout operation of silicon nitride ceramics bearing ball.
The special major diameter skive manufacture method of this silicon nitride ceramic ball lappingout, it is characterised in that step is as follows：
First, standby aluminum base plate：
According to the dimensioned aluminum base plate of customer demand product；
2nd, standby abrasive and bonding agent：
A, abrasive：Diadust, the diamond concentration of abrasive body is 160%, i.e. diadust volume accounts for abrasive body
The 40% of volume, its granularity are 4000 mesh；
B, bonding agent：Its volume accounts for the 60% of grinding body portion, and the concrete composition of bonding agent and part by weight are as follows：
Phenolic resin, weight account for the 57% of bonding agent gross weight,；
Chromium oxide powder, weight account for the 6% of bonding agent gross weight；
Magnesia powder, weight account for the 10% of bonding agent gross weight；
Copper powder, weight account for the 12% of bonding agent gross weight；
Green silicon carbide powder, weight account for the 7% of bonding agent gross weight；
Boron carbide micro powder, weight account for the 8% of bonding agent gross weight；
3rd, batch mixing：
1st, diadust and phenolic resin are added into ball mill grinding, mixing 3 hours；
2nd, chromium oxide, magnesium oxide are added into ball mill grinding, mixing 2 hours again；
3rd, copper powder, green silicon carbide, boron carbide are eventually adding, then are ground, is mixed 1 hour；
4th, grinding, mixed material are sieved through into sieve with ultrasonic activation, will be the granule of conglomeration in raw material fully dispersed, it is ensured that former
Material it is uniform with it is loose；
4th, it is die-filling：
1st, clean aluminum base plate, it is ensured that without oil stain, free from admixture in aluminum base plate groove；
2nd, mixed abrasive is taken, is added in the groove of aluminum base plate, will be raw material rake uniform with claw, then with scraping mould
Material is struck off by frock；
3rd, top board is covered in and is filled within the groove of abrasive；
5th, suppress：
1st, the aluminum base plate for installing abrasive is put in press；
2nd, the aluminum base plate temperature for installing abrasive is heated to into 100 DEG C -120 DEG C, is incubated 8 hours, in making abrasive
Phenolic resin softens completely, is now pressurizeed using more than 3000T press, abrasive is pressed into regulation according to design requirement thick
Degree；
3rd, aluminum base plate temperature is improved, phenolic resin starts to solidify and hardens when temperature rises to 150 DEG C -200 DEG C, insulation
Pressurize makes its fully hardened molding for 10 hours；
6th, depanning：Top board is taken out after aluminum base plate is cooled to room temperature；
7th, machining, makes its profile reach the standard that client and enterprise specify according to Design and Machining；
8th, by outward appearance, hardness, size, the depth of parallelism, axiality, planarity checking, qualified rear packaging, warehouse-in.
Claims (1)
1. the manufacture method of the special major diameter skive of a kind of silicon nitride ceramic ball lappingout, the major diameter skive
For circular sheet material, the emery wheel includes base material and abrasive body, and there is installing hole centre, and base material is for [shape in the groove of base material side is
Abrasive body, base material are aluminum base plate, and abrasive body is the groove of diamond and the heated compacting hardened forming of resin in aluminum base plate
In, both aluminum base plate and abrasive body are closely linked, product diameter 800-1000mm, abrasive body ring end work face diameter
To 200-240mm, below 5%, product surface is smooth for the porosity, distortion free, for the lappingout work of silicon nitride ceramic ball
Sequence；
Characterized in that, step is as follows：
First, standby aluminum base plate：
According to the dimensioned aluminum base plate of customer demand product；
2nd, standby abrasive and bonding agent：
A, abrasive：Diadust, the diamond concentration of abrasive body is 75%-200%, i.e. diadust volume accounts for abrasive body
The 18.75%-50% of volume, its particle size range are -5000 mesh of 1000 mesh；
B, bonding agent：Its volume accounts for the 50%-81.25% of grinding body portion, and the concrete composition of bonding agent and part by weight are as follows：
Phenolic resin, weight account for the 45%-70% of bonding agent gross weight；
Chromium oxide powder, weight account for the 2%-10% of bonding agent gross weight；
Magnesia powder, weight account for the 6%-15% of bonding agent gross weight；
Copper powder, weight account for the 10%-15% of bonding agent gross weight；
Green silicon carbide powder, weight account for the 5%-10% of bonding agent gross weight；
Boron carbide micro powder, weight account for the 6-10% of bonding agent gross weight；
3rd, batch mixing：
A, diadust and phenolic resin are added ball mill grinding, mixing 3 hours；
B, again by chromium oxide, magnesium oxide add ball mill grinding, mixing 2 hours；
C, copper powder, green silicon carbide, boron carbide are eventually adding, then grind, mix 1 hour；
D, will grinding, mixed material with ultrasonic activation be sieved through sieve, will be the granule of conglomeration in raw material fully dispersed, it is ensured that raw material
Uniformly with loosely；
4th, it is die-filling：
A, cleaning aluminum base plate, it is ensured that without oil stain, free from admixture in aluminum base plate groove；
B, mixed abrasive is taken, be added in the groove of aluminum base plate, will be raw material rake uniform with claw, then with scraping die craft equipment
Material is struck off；
C, top board is covered in fills within the groove of abrasive；
5th, suppress：
A, the aluminum base plate for installing abrasive is put in press；
B, the aluminum base plate temperature for installing abrasive is heated to into 100 DEG C -120 DEG C, is incubated 8 hours, makes the phenolic aldehyde in abrasive
Resin softens completely, is now pressurizeed using more than 3000T press, abrasive is pressed into specific thickness according to design requirement；
C, raising aluminum base plate temperature, when temperature rises to 150 DEG C -200 DEG C, phenolic resin starts to solidify and hardens, heat-insulation pressure keeping
Make within 10 hours its fully hardened molding；
6th, depanning：Top board is taken out after aluminum base plate is cooled to room temperature；
7th, machining, makes its profile reach the standard that client and enterprise specify according to Design and Machining；
8th, by outward appearance, hardness, size, the depth of parallelism, axiality, planarity checking, qualified rear packaging, warehouse-in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254609.6A CN104786164B (en) | 2015-05-19 | 2015-05-19 | Special large-diameter diamond grinding wheel for lapping silicon nitride ceramic ball and manufacturing method of diamond grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254609.6A CN104786164B (en) | 2015-05-19 | 2015-05-19 | Special large-diameter diamond grinding wheel for lapping silicon nitride ceramic ball and manufacturing method of diamond grinding wheel |
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| CN104786164A CN104786164A (en) | 2015-07-22 |
| CN104786164B true CN104786164B (en) | 2017-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3347165B1 (en) | 2015-09-08 | 2023-08-02 | 3M Innovative Properties Company | Abrasive rotary tool with abrasive agglomerates |
| CN106810265A (en) * | 2015-11-27 | 2017-06-09 | 衡阳凯新特种材料科技有限公司 | A kind of preparation method of silicon nitride protecting tube |
| CN106041758A (en) * | 2016-07-20 | 2016-10-26 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel matrix for casting molded grinding wheel and preparation method of casting molded grinding wheel |
| CN109277955B (en) * | 2018-08-30 | 2019-12-03 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel, preparation method and application for the grinding of QFN semiconductor sealing material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048162A (en) * | 2001-08-08 | 2003-02-18 | Dainippon Printing Co Ltd | Polishing sheet having patternlike polishing layer |
| CN2768971Y (en) * | 2004-04-21 | 2006-04-05 | 南通建华磨具有限公司 | Sector diamond grinding wheel |
| CN101695822A (en) * | 2009-10-30 | 2010-04-21 | 西安泽豪实业有限责任公司 | Formula of diamond super-thin cutting disc for cutting of magnetic materials and production technology thereof |
| CN101829960A (en) * | 2010-04-30 | 2010-09-15 | 邬伟光 | Diamond resin grinding tool for stones and ceramics |
| CN202910745U (en) * | 2012-11-20 | 2013-05-01 | 河南万克钻石工具有限公司 | Diamond grinding wheel |
| CN103273417A (en) * | 2013-06-18 | 2013-09-04 | 山东泰广奕砂轮有限公司 | Diamond resin grinding plate and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112141A (en) * | 1994-05-19 | 1995-11-22 | 戴延平 | Method for mfg diamond-resin grinding wheel |
-
2015
- 2015-05-19 CN CN201510254609.6A patent/CN104786164B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048162A (en) * | 2001-08-08 | 2003-02-18 | Dainippon Printing Co Ltd | Polishing sheet having patternlike polishing layer |
| CN2768971Y (en) * | 2004-04-21 | 2006-04-05 | 南通建华磨具有限公司 | Sector diamond grinding wheel |
| CN101695822A (en) * | 2009-10-30 | 2010-04-21 | 西安泽豪实业有限责任公司 | Formula of diamond super-thin cutting disc for cutting of magnetic materials and production technology thereof |
| CN101829960A (en) * | 2010-04-30 | 2010-09-15 | 邬伟光 | Diamond resin grinding tool for stones and ceramics |
| CN202910745U (en) * | 2012-11-20 | 2013-05-01 | 河南万克钻石工具有限公司 | Diamond grinding wheel |
| CN103273417A (en) * | 2013-06-18 | 2013-09-04 | 山东泰广奕砂轮有限公司 | Diamond resin grinding plate and manufacturing method thereof |
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Address after: No. 198 Run Avenue, Zibo High-tech Industrial Development Zone, Shandong Province Patentee after: Shandong Taiyu Grinding Technology Co., Ltd. Address before: 255088 No. 198 Run Avenue, Zibo High-tech Zone, Shandong Province Patentee before: The wide benefit in Shandong reaches grinding Science and Technology Ltd. |