CN111941293B - Metal bonding agent for edge grinding wheel, edge grinding wheel for processing plate glass and preparation method thereof - Google Patents
Metal bonding agent for edge grinding wheel, edge grinding wheel for processing plate glass and preparation method thereof Download PDFInfo
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- CN111941293B CN111941293B CN202010844017.0A CN202010844017A CN111941293B CN 111941293 B CN111941293 B CN 111941293B CN 202010844017 A CN202010844017 A CN 202010844017A CN 111941293 B CN111941293 B CN 111941293B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
- B24D3/10—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for porous or cellular structure, e.g. for use with diamonds as abrasives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/03—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding grooves in glass workpieces, e.g. decorative grooves
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention belongs to the field of grinding wheel metal bonding agents, and particularly relates to a metal bonding agent for an edge grinding wheel, an edge grinding wheel for processing plate glass and a preparation method of the edge grinding wheel. The metal bonding agent for the edge grinding wheel consists of metal components and cerium oxide, wherein the mass of the cerium oxide is 1-3% of that of the metal components, and the metal components consist of the following components in parts by weight: 35-45 parts of cobalt, 20-30 parts of tin, 5-15 parts of aluminum, 10-20 parts of copper, 5-15 parts of iron and 5-10 parts of nickel. The metal bonding agent improves the sintering property and the mechanical grinding property, improves the hardness and simultaneously considers the toughness of the bonding agent. The edge grinding wheel made of the metal bonding agent is not easy to deform when used for processing plate glass, and the service life can be prolonged.
Description
Technical Field
The invention belongs to the field of grinding wheel metal bonding agents, and particularly relates to a metal bonding agent for an edge grinding wheel, an edge grinding wheel for processing plate glass and a preparation method of the edge grinding wheel.
Background
At present, the diamond edge grinding wheels for deep processing of domestic plate glass are single-groove grinding wheels and multi-groove grinding wheels (multi-groove edge grinding wheels), wherein the multi-groove grinding wheels are also called high-thickness grinding wheels. Single groove grinding wheels have a number of drawbacks in use: the service life is short, the replacement frequency is high, the effective processing time is short, and the production efficiency is low; the multi-groove grinding wheel can well solve the defects.
The structural schematic diagram of the multi-groove edge grinding wheel is shown in fig. 1, a plurality of grinding grooves are arranged on the working layer along the thickness direction, and a plurality of grooves such as a first grinding groove 1, a second grinding groove 2, a third grinding groove 3, a fourth grinding groove 4 and the like can be arranged. A plan view of a multi-grooved edging wheel for processing glass is shown in fig. 2. In the using process of glass processing, a first multi-groove grinding wheel 5, a second multi-groove grinding wheel 6, a third multi-groove grinding wheel 7 and a fourth multi-groove grinding wheel 8 are used for processing glass 9, the first grinding groove 1 is used firstly, after the first grinding groove 1 is used, the grinding wheels do not need to be replaced, the operation program of the machine is compiled, the grinding wheels are directly and integrally lifted (or lowered), the second grinding groove 2 is used for processing, and then the grinding grooves such as the third grinding groove 3 and the fourth grinding groove 4 are used according to the same operation.
Although the multislot edging wheel has advantages such as long service life, the processing volume is many, reduces down time, still has some problems: because the thickness of the multi-groove edge grinding wheel is thickened, the grooves are not easy to reach theoretical density one by one in the thickness direction, namely, the density difference of each groove is large, so that the consistency of the multi-groove edge grinding wheel is poor, and the processing quality of the plate glass can be influenced. In addition, the grinding wheel has low hardness and is easy to deform, so that the service life of the grinding wheel needs to be further improved.
Disclosure of Invention
The invention aims to provide a metal bonding agent for an edge grinding wheel, which has high hardness, and the manufactured edge grinding wheel is not easy to deform when processing plate glass, and can prolong the service life.
The second object of the present invention is to provide an edge grinding wheel for processing sheet glass, which uses the above metal bond.
The third purpose of the invention is to provide the preparation method of the edge grinding wheel, which is suitable for manufacturing the multi-groove edge grinding wheel, and the density difference of each grinding groove is small, so that the consistency of a working layer is better.
In order to achieve the purpose, the technical scheme of the metal bonding agent for the edge grinding wheel is as follows:
the metal bonding agent for the edge grinding wheel comprises metal components and cerium oxide, wherein the mass of the cerium oxide is 1-3% of that of the metal components, and the metal components comprise the following components in parts by weight: 35-45 parts of cobalt, 20-30 parts of tin, 5-15 parts of aluminum, 10-20 parts of copper, 5-15 parts of iron and 5-10 parts of nickel.
The bonding agent used by the edge grinding wheel is a cobalt-based bonding agent, and the diamond tool made of the cobalt-based bonding agent has the advantages of high bending strength, good wear resistance, long service life, high processing efficiency and the like. According to the metal bonding agent for the edge grinding wheel, metal elements with low melting points such as tin and aluminum are added according to the limitation of the diamond carbonization temperature to adjust the sintering temperature and facilitate compression molding; the cerium oxide has good polishing performance and the function of adjusting the strength of a tire body in the process of processing a workpiece. The metal bonding agent improves the sintering property and the mechanical grinding property, improves the hardness and simultaneously considers the toughness of the bonding agent. The edge grinding wheel made of the metal bonding agent is not easy to deform when used for processing plate glass, and the service life can be prolonged.
Preferably, the metal component consists of the following components in parts by weight: 40 parts of cobalt, 25 parts of tin, 10 parts of aluminum, 10 parts of copper, 7 parts of iron and 8 parts of nickel.
The technical scheme of the edge grinding wheel for processing the plate glass is as follows:
the edge grinding wheel for processing the plate glass comprises a base body and a working layer, wherein an annular grinding groove for processing the plate glass is formed in the working layer, the working layer is mainly made of a metal bonding agent and an abrasive, the metal bonding agent is composed of metal components and cerium oxide, the mass of the cerium oxide is 1-3% of that of the metal components, and the metal components are composed of the following components in parts by weight: 35-45 parts of cobalt, 20-30 parts of tin, 5-15 parts of aluminum, 10-20 parts of copper, 5-15 parts of iron and 5-10 parts of nickel.
The edge grinding wheel for processing the plate glass improves the hardness on the basis of considering the grinding performance, and is very suitable for grinding the plate glass.
Preferably, the metal component consists of the following components in parts by weight: 40 parts of cobalt, 25 parts of tin, 10 parts of aluminum, 10 parts of copper, 7 parts of iron and 8 parts of nickel.
The mass ratio of the metal bonding agent to the grinding material is 20-30: 1. The abrasive material can be selected from diamond, and has a grade of MBD 6-MBD 12.
The technical scheme of the preparation method of the edge grinding wheel for processing the plate glass is as follows:
the preparation method of the edge grinding wheel for processing the plate glass comprises the following steps: uniformly mixing a metal bonding agent and an abrasive to obtain working layer powder; combining the working layer powder and the matrix into a mold blank, and then carrying out hot-pressing sintering under the protective atmosphere, wherein the sintering temperature of the hot-pressing sintering is 760 and 860 ℃.
If the single-groove edge grinding wheel is designed, the effect of improving the hardness and the grinding service life of the edge grinding wheel can be achieved by adopting the hot-pressing sintering process at 760-channel 860 ℃ due to the fact that the thickness of the working layer is not large. The pressure of hot-pressing sintering can be controlled to be 10-20MPa, and the time can be controlled to be 30-60 min.
If the multi-groove edge grinding wheel is designed, the following process is preferably adopted to promote the bonding agent to be fully melted and facilitate the compression molding because the thickness of the working layer is increased, and the edge grinding wheel with good density consistency in the whole thickness direction is obtained. In this case, preferably, a plurality of annular grinding grooves are provided at intervals in the thickness direction of the working layer, and the hot press sintering includes the steps of: the temperature is maintained at 230-240 ℃ to melt the tin in the metal binder, then the temperature is increased to 650-660 ℃ to melt the aluminum in the metal binder, and then the temperature is maintained at 760-860 ℃ and then the temperature is cooled. By adopting the optimized sintering process, under the conditions of large thickness of the working layer and large number of grinding grooves, the density uniformity of the working layer near each grinding groove can be still ensured, the consistency of the working layer is improved, and the service life, the processing amount and the processing quality of the edge grinding wheel are favorably improved.
It is easily understood that the hot press sintering process is performed in a protective atmosphere of nitrogen or the like to prevent oxidation of the binder matrix and the mold during sintering. The pressure of hot-pressing sintering is 10-20 MPa. Preferably, the time for the heat preservation at 230-240 ℃ is 10-15 min. The heat preservation time at 650-660 ℃ is 10-15 min. The time for heat preservation at 760 and 860 ℃ is 20-40 min. Under the above technological parameters, the sintering energy is utilized to the maximum extent, and the stability of the product is improved.
Cooling after hot-pressing sintering, wherein the cooling comprises the following steps: cooling to 450-550 ℃, preserving the heat for 10-15min, and then cooling to room temperature. The hard brittleness and stability of the binder matrix can be further improved by adopting a gradient cooling mode.
Drawings
FIG. 1 is a schematic view of a multi-groove edging wheel;
FIG. 2 is a plan view of a multi-groove edging wheel processing glass;
FIG. 3 is a temperature profile of a sintering process in example 1 of the present invention;
FIG. 4 is a temperature profile of a prior art sintering process;
it is composed of 1-first grinding groove, 2-second grinding groove, 3-third grinding groove, 4-fourth grinding groove, 5-first multi-groove grinding wheel, 6-second multi-groove grinding wheel, 7-third multi-groove grinding wheel, 8-fourth multi-groove grinding wheel and 9-glass.
Detailed Description
The following examples are provided to further illustrate the practice of the invention. In the following examples, the particle size of cobalt powder is 18 to 21 μm, the particle size of tin powder is 33 to 36 μm, the particle size of aluminum powder is 33 to 46 μm, the particle size of copper powder is 33 to 36 μm, the particle size of iron powder is 33 to 36 μm, the particle size of nickel powder is 33 to 36 μm, and cerium oxide is analytically pure.
First, the concrete embodiment of the metal bond for edge grinding wheel of the invention
Example 1
The metal bond for the edge grinding wheel comprises metal components and cerium oxide, wherein the mass of the cerium oxide is 2% of that of the metal components, and the metal components comprise the following components in parts by weight: 40 parts of cobalt, 25 parts of tin, 10 parts of aluminum, 10 parts of copper, 7 parts of iron and 8 parts of nickel.
Example 2
The metal bond for the edge grinding wheel comprises metal components and cerium oxide, wherein the mass of the cerium oxide is 3% of that of the metal components, and the metal components comprise the following components in parts by weight: 35 parts of cobalt, 20 parts of tin, 12 parts of aluminum, 17 parts of copper, 10 parts of iron and 6 parts of nickel.
Example 3
The metal bond for the edge grinding wheel comprises metal components and cerium oxide, wherein the mass of the cerium oxide is 1% of that of the metal components, and the metal components comprise the following components in parts by weight: 38 parts of cobalt, 27 parts of tin, 6 parts of aluminum, 12 parts of copper, 12 parts of iron and 5 parts of nickel.
Second, the present invention provides an embodiment of an edge grinding wheel for processing sheet glass
Example 4
The edge grinding wheel for processing the plate glass comprises a base body and a working layer, wherein a plurality of grinding grooves are formed in the working layer in parallel along the thickness direction. The thickness (edging wheel axial direction) of working layer is 38mm, and the width (edging wheel radial direction) is 10mm, and the quantity of groove of grinding is 4. The base material is iron.
The working layer is made of the metal bond and the abrasive of example 1 in a mass ratio of 20: 1. The abrasive is diamond with a particle size of 230/270.
Example 5
The edge grinding wheel for processing sheet glass of the present example is different from the edge grinding wheel for processing sheet glass of example 4 in that it is made using the metal bond of example 2 and the abrasive in a mass ratio of 25: 1. The abrasive is diamond with a particle size of 230/270.
Example 6
The edge grinding wheel for processing sheet glass of the present example is different from the edge grinding wheel for processing sheet glass of example 4 in that the metal bond and the abrasive of example 3 are used in a mass ratio of 28: 1. The abrasive is diamond with a particle size of 230/270.
Third, the specific embodiment of the method for manufacturing the edge grinding wheel for processing plate glass of the present invention
Example 7
The method for manufacturing the edge grinding wheel for processing plate glass in the embodiment is to explain the preparation of the edge grinding wheel in the embodiment 4, and comprises the following steps:
1) uniformly mixing cobalt, tin, aluminum, copper, iron, nickel and cerium oxide powder to obtain working layer powder;
2) placing a substrate in a mould, filling working layer powder, and then performing hot-pressing sintering according to the following process: the temperature is kept at 240 ℃ for 15min, so that metal tin in the binder matrix is fully melted, the matrix is agglomerated and bonded, then the temperature is increased to 660 ℃ for 15min, so that aluminum in the metal binder is melted, then the temperature is kept at 780 ℃ for 30min, so that the binder matrix is further melted, then the binder matrix is cooled to 480 ℃ at the speed of 5 ℃/min, the temperature is kept for 15min, and then the binder matrix is taken out of the furnace and naturally cooled to room temperature. The pressure of hot-pressing sintering is 15 MPa. The temperature profile of the hot press sintering process is shown in fig. 3.
And (4) performing grinding wheel grooving on the edge grinding wheel blank discharged from the furnace through a high-precision grooving machine or a high-precision spark machine.
Example 8
The edge grinding wheel for processing sheet glass of the present example is described for the preparation of the edge grinding wheel of example 5, and the difference from example 7 is only in the difference of the sintering process, wherein the temperature is first kept at 235 ℃ for 10min, then at 650 ℃ for 10min, and then at 800 ℃ for 25 min. And in the cooling stage, the temperature is cooled to 450 ℃, the temperature is kept for 12min, and then the product is taken out of the furnace and is naturally cooled to the room temperature.
Example 9
The edge grinding wheel for processing sheet glass of the present example is described for the preparation of the edge grinding wheel of example 6, and differs from example 7 only in the sintering process in that the temperature is first maintained at 231 ℃ for 12min, then at 655 ℃ for 12min, and then at 760 ℃ for 20 min. And in the cooling stage, the temperature is firstly cooled to 550 ℃, the temperature is preserved for 10min, and then the product is taken out of the furnace and is naturally cooled to the room temperature.
Fourth, comparative example
Comparative example 1
The edge grinding wheel of the comparative example is different from example 7 in that the sintering curve is shown in FIG. 4 after the temperature is directly raised from room temperature to 780 ℃ and the temperature is kept at 40 ℃ and then the wheel is discharged from the furnace and cooled in air.
Comparative example 2
The metal bonding agent of the comparative example is a copper-based bonding agent and consists of the following components in parts by weight: 50 parts of copper, 10 parts of tin, 15 parts of cobalt, 10 parts of iron and 15 parts of nickel. The particle size of the metal powder is 45-55 μm.
The edge grinding wheel of the comparative example is different from the edge grinding wheel of the example 7 in that the temperature is increased to 235 ℃ from room temperature and is kept for 10min, then the temperature is increased to 780 ℃ and is kept for 40min, then the temperature is reduced to 500 ℃ at the speed of 6 ℃/min, the temperature is kept for 10min, and then the edge grinding wheel is taken out of the furnace and is naturally cooled.
Fifth, example of experiment
In this experimental example, the uniformity of the density of the working layer in the vicinity of each grinding groove was evaluated by measuring the hardness of the working layer of the multi-groove edging wheel in the thickness direction. The specification and the model of the edge grinding wheel in the embodiment and the comparative example are the same, the hardness detection positions at the upper part, the middle part and the lower part are the same, and the detection result is the average value of 5 samples.
In example 7, the hardness at the upper, middle and lower three points in the thickness direction of the grinding wheel was 80HRB, 79.5HRB and 80HRB, respectively.
In comparative example 1, the hardness at the upper, middle and lower three positions in the thickness direction of the grinding wheel was 77HRB, 65HRB and 76HRB, respectively.
In comparative example 2, the hardness at the upper, middle and lower three positions in the thickness direction of the grinding wheel was 65HRB, 63HRB and 65HRB, respectively.
From the hardness test results of example 7 and comparative example 1, it is found that the difference in the upper, middle and lower hardness of the edge grinding wheel of the comparative example is large in the sintering process using the same binder but different, indicating that the density is not uniform. The sintering process of example 7 is particularly useful for the preparation of large thickness, multi-groove edging wheels.
According to the hardness test results of example 7 and comparative example 2, which employs a gradient sintering process matched with the binder component, has a small difference in hardness in the thickness direction of the grinding wheel, but has a low overall hardness, and is easily deformed when processing plate glass, resulting in a short service life.
Claims (8)
1. The edge grinding wheel for processing the plate glass is characterized by comprising a base body and a working layer, wherein an annular grinding groove for processing the plate glass is formed in the working layer, the working layer is mainly made of a metal bonding agent and an abrasive, the metal bonding agent is composed of metal components and cerium oxide, the mass of the cerium oxide is 1-3% of that of the metal components, and the metal components are composed of the following components in parts by weight: 35-45 parts of cobalt, 20-30 parts of tin, 5-15 parts of aluminum, 10-20 parts of copper, 5-15 parts of iron and 5-10 parts of nickel.
2. The edge grinding wheel for processing sheet glass according to claim 1, wherein the metal component is composed of the following components in parts by weight: 40 parts of cobalt, 25 parts of tin, 10 parts of aluminum, 10 parts of copper, 7 parts of iron and 8 parts of nickel.
3. A method of manufacturing an edging wheel for sheet glass processing according to claim 1, characterized by comprising the steps of: uniformly mixing a metal bonding agent and an abrasive to obtain working layer powder; combining the working layer powder and the matrix into a mold blank, and then carrying out hot-pressing sintering under the protective atmosphere, wherein the sintering temperature of the hot-pressing sintering is 760 and 860 ℃.
4. The method of manufacturing an edge grinding wheel for sheet glass processing according to claim 3, wherein a plurality of annular grinding grooves are provided at intervals in the thickness direction of the working layer, and the hot press sintering comprises the steps of: the temperature is maintained at 230-240 ℃ to melt the tin in the metal binder, then the temperature is increased to 650-660 ℃ to melt the aluminum in the metal binder, and then the temperature is maintained at 760-860 ℃ and then the temperature is cooled.
5. The method of claim 4, wherein the temperature is maintained at 230-240 ℃ for 10-15 min.
6. The method of claim 4, wherein the temperature is maintained at 660 ℃ for 10-15 min.
7. The method of claim 4, wherein the period of time for the temperature of 760-860 ℃ is 20-40 min.
8. The method of manufacturing an edge grinding wheel for sheet glass processing according to any one of claims 3 to 7, wherein the cooling after the hot press sintering comprises: cooling to 450-550 ℃, preserving the heat for 10-15min, and then cooling to room temperature.
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| FR2678286A1 (en) * | 1991-06-28 | 1992-12-31 | Sandvik Hard Materials Sa | BORON BASED CERAMICS OF TRANSITION METALS, THEIR MANUFACTURE AND THEIR APPLICATIONS. |
| EP0576937A2 (en) * | 1992-06-19 | 1994-01-05 | Rikagaku Kenkyusho | Apparatus for mirror surface grinding |
| CN101500755A (en) * | 2006-10-06 | 2009-08-05 | 日本电气硝子株式会社 | Grindstone |
| CN203343906U (en) * | 2013-05-24 | 2013-12-18 | 衢州学院 | Self-sharpening grinding tool with soluble filling agents for superhard and superfine grinding materials |
| CN107160297A (en) * | 2016-03-07 | 2017-09-15 | 河源市树熊超硬磨具有限公司 | A kind of touch-screen glass grinding diamond grinding head and preparation method thereof |
| CN110216596A (en) * | 2019-05-31 | 2019-09-10 | 郑州中岳机电设备有限公司 | A kind of sintered carbide tools for intermetallic composite coating |
| CN110355699A (en) * | 2019-05-19 | 2019-10-22 | 北京工业大学 | A kind of aluminium base diamond composite ELID grinding wheel for grinding and preparation method thereof |
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2020
- 2020-08-20 CN CN202010844017.0A patent/CN111941293B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2678286A1 (en) * | 1991-06-28 | 1992-12-31 | Sandvik Hard Materials Sa | BORON BASED CERAMICS OF TRANSITION METALS, THEIR MANUFACTURE AND THEIR APPLICATIONS. |
| EP0576937A2 (en) * | 1992-06-19 | 1994-01-05 | Rikagaku Kenkyusho | Apparatus for mirror surface grinding |
| CN101500755A (en) * | 2006-10-06 | 2009-08-05 | 日本电气硝子株式会社 | Grindstone |
| CN203343906U (en) * | 2013-05-24 | 2013-12-18 | 衢州学院 | Self-sharpening grinding tool with soluble filling agents for superhard and superfine grinding materials |
| CN107160297A (en) * | 2016-03-07 | 2017-09-15 | 河源市树熊超硬磨具有限公司 | A kind of touch-screen glass grinding diamond grinding head and preparation method thereof |
| CN110355699A (en) * | 2019-05-19 | 2019-10-22 | 北京工业大学 | A kind of aluminium base diamond composite ELID grinding wheel for grinding and preparation method thereof |
| CN110216596A (en) * | 2019-05-31 | 2019-09-10 | 郑州中岳机电设备有限公司 | A kind of sintered carbide tools for intermetallic composite coating |
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