CN111823150A - Resin binder diamond grinding tool and preparation method thereof - Google Patents
Resin binder diamond grinding tool and preparation method thereof Download PDFInfo
- Publication number
- CN111823150A CN111823150A CN201910332580.7A CN201910332580A CN111823150A CN 111823150 A CN111823150 A CN 111823150A CN 201910332580 A CN201910332580 A CN 201910332580A CN 111823150 A CN111823150 A CN 111823150A
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- China
- Prior art keywords
- parts
- resin
- powder
- diamond
- grinding tool
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- 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.)
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Classifications
-
- 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
- B24D3/20—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 organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
- B24D3/32—Resins or natural or synthetic macromolecular compounds for porous or cellular structure
-
- 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
-
- 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
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
- B24D3/344—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent the bonding agent being organic
Abstract
The invention discloses a resin bond diamond grinding tool, which comprises the following components in parts by weight: 32 to 45 parts of resin binder, 6 to 15 parts of diamond, 25 to 35 parts of silicon carbide, 5 to 10 parts of modified wollastonite, 25 to 35 parts of zinc oxide and 3 to 5 parts of chromium oxide; wherein the modified wollastonite is needle-shaped wollastonite powder treated by a silane coupling agent. The invention also discloses a preparation method of the resin binder diamond grinding tool. The resin bond diamond grinding tool disclosed by the invention has a long service life.
Description
Technical Field
The invention relates to the technical field of diamond grinding tools, in particular to a resin bonding agent diamond grinding tool and a preparation method thereof.
Background
The diamond grinding tool can be divided into a resin-based binder diamond grinding tool, a sintered metal-based binder diamond grinding tool, an electroplated metal binder diamond grinding tool, a ceramic binder diamond grinding tool and the like according to different binders. The resin bond diamond grinding tool has the advantages of good elasticity, high strength, impact resistance, short production period, good self-sharpening property in the grinding process, high grinding efficiency, good quality of the processed surface and the like, so the resin bond diamond grinding tool is widely applied. The consumption of the resin bond diamond grinding tool accounts for about 60 percent of the total amount of the diamond grinding tools in the world.
The main problems of the resin bond diamond grinding tool at present are as follows: the resin bonding agent has insufficient wear resistance and low bonding strength between the resin bonding agent and the diamond abrasive particles, so that the service life of the resin bonding agent diamond grinding tool is short.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a resin bond diamond grinding tool and a preparation method thereof, and aims to solve the problem that the resin bond diamond grinding tool is short in service life.
In order to achieve the object of the present invention, the present invention provides a resin bond diamond grinding tool, comprising the following components by weight:
32 to 45 parts of resin binder, 6 to 15 parts of diamond, 25 to 35 parts of silicon carbide, 5 to 10 parts of modified wollastonite, 25 to 35 parts of zinc oxide and 3 to 5 parts of chromium oxide; wherein the modified wollastonite is needle-shaped wollastonite powder treated by a silane coupling agent.
In one embodiment, the resin bond diamond grinding tool comprises the following components by weight:
38-40 parts of resin bonding agent, 7-10 parts of diamond, 27-30 parts of silicon carbide, 8-10 parts of modified wollastonite, 26-30 parts of zinc oxide and 3-5 parts of chromium oxide.
In one embodiment, the resin bond diamond grinding tool comprises the following components by weight:
38 parts of the resin bonding agent, 7 parts of the diamond, 27 parts of silicon carbide, 9 parts of the modified wollastonite, 26 parts of zinc oxide and 3 parts of chromium oxide.
In one embodiment, the resin binder is a thermosetting resin.
In one embodiment, the resin binder is at least one of a phenolic resin, an epoxy resin, a melamine resin, and a polyamide resin.
In order to achieve the above object, the present invention also provides a method for manufacturing a resin bond diamond grinding tool, comprising the steps of:
weighing the following raw materials in parts by weight: 32-45 parts of resin binder, 6-15 parts of diamond powder, 25-35 parts of silicon carbide powder, 5-10 parts of modified wollastonite powder, 25-35 parts of zinc oxide powder and 3-5 parts of chromium oxide powder, wherein the modified wollastonite is needle-shaped wollastonite powder treated by a silane coupling agent;
mixing the raw materials to obtain a mixed material;
and putting the mixed material into a mould, and carrying out hot press molding on the mixed material in the mould to obtain the resin bonding agent diamond grinding tool.
In an embodiment, the step of mixing the raw materials to obtain a mixed material includes:
and putting the raw materials into a mixer, and mixing for 2-3 h to obtain a mixed material.
In an embodiment, the step of performing hot press molding on the mixed material in the mold to obtain the resin bond diamond grinding tool includes:
and carrying out hot press molding on the mixed material in the mold for 13-16 min at the temperature of 150-170 ℃ to obtain the resin bond diamond grinding tool.
In one embodiment, the diamond powder is at least one of a plurality of artificial diamond powders of 150 mesh to 1000 mesh.
In one embodiment, the modified wollastonite powder has a particle size of 150 mesh to 1000 mesh.
The embodiment of the invention provides a resin bonding agent diamond grinding tool and a preparation method thereof, wherein the resin bonding agent diamond grinding tool comprises the following components in parts by weight: 32 to 45 parts of resin binder, 6 to 15 parts of diamond, 25 to 35 parts of silicon carbide, 5 to 10 parts of modified wollastonite, 25 to 35 parts of zinc oxide and 3 to 5 parts of chromium oxide; the wollastonite is an inorganic acicular mineral with the advantages of no toxicity, chemical corrosion resistance, good thermal stability and size stability, has excellent mechanical property and certain reinforcing effect, can improve the impact strength of a resin matrix, enhance the powder flowability, improve the tensile strength, the impact strength and the wear resistance, enables the acicular wollastonite modified by a silane coupling agent to enhance the wear resistance of a resin bonding agent diamond grinding tool and enhance the bonding strength of a resin bonding agent and diamond abrasive particles, and compared with the resin bonding agent diamond grinding tool without the modified wollastonite, the service life of the resin bonding agent diamond grinding tool prepared by the invention can be prolonged by more than 40%.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First, a brief overview of a method for manufacturing a resin bond diamond abrasive tool according to an embodiment of the present invention is provided.
The preparation method of the resin bond diamond grinding tool provided by the embodiment of the invention comprises the following steps:
1. weighing the following raw materials in parts by weight: 32-45 parts of resin binder, 6-15 parts of diamond powder, 25-35 parts of silicon carbide powder, 5-10 parts of modified wollastonite powder, 25-35 parts of zinc oxide powder and 3-5 parts of chromium oxide powder, wherein one part can be 1g, 10g, 100g or 1000 g; the diamond powder is at least one of a plurality of artificial diamonds with the granularity of 150 meshes to 1000 meshes, the silicon carbide powder is at least one of green silicon carbide powder and black silicon carbide powder, the granularity of the silicon carbide powder is 150 meshes to 1000 meshes, the purity of the zinc oxide powder is more than 99.7 percent, the zinc oxide powder with the purity can be prepared by an indirect method, the average grain diameter of the chromium oxide powder is 2.0 microns, and the purity is more than 99.5 percent;
2. putting the weighed raw materials into a mixer, and mixing for 2-3 h to obtain a mixed material;
3. and putting the mixed material into a mould, scraping the redundant mixed material on the mould, and performing hot-press molding on the mixed material in the mould for 13-16 min at the temperature of 150-170 ℃ to obtain the resin bond diamond grinding tool.
The numerical bonding agent diamond grinding tool prepared by the invention comprises the following components in parts by weight: 32 to 45 parts of resin binder, 6 to 15 parts of diamond, 25 to 35 parts of silicon carbide, 5 to 10 parts of modified wollastonite, 25 to 35 parts of zinc oxide and 3 to 5 parts of chromium oxide.
The wollastonite is an inorganic acicular mineral with the advantages of no toxicity, chemical corrosion resistance, good thermal stability and size stability, has excellent mechanical property and certain reinforcing effect, can improve the impact strength of a resin matrix, enhance the powder flowability, improve the tensile strength, the impact strength and the wear resistance, enables the acicular wollastonite modified by a silane coupling agent to enhance the wear resistance of a resin bonding agent diamond grinding tool and enhance the bonding strength of a resin bonding agent and diamond abrasive particles, and compared with the resin bonding agent diamond grinding tool without the modified wollastonite, the service life of the resin bonding agent diamond grinding tool prepared by the invention can be prolonged by more than 40%.
According to the invention, through the wollastonite modification technology, the wear resistance of the resin matrix is improved, the efficient mixing of the modifier and the resin matrix can be realized, the polishing quality of the grinding block is not obviously influenced, and the service life of the diamond grinding tool is prolonged.
Example 1
The method comprises the following steps: weighing the following raw materials:
weighing 32 parts by mass of phenolic resin powder, 6 parts by mass of 240-mesh diamond powder, 26 parts by mass of 240-mesh green silicon carbide powder, 8 parts by mass of 240-mesh modified wollastonite powder, 25 parts by mass of zinc oxide powder and 3 parts by mass of chromium oxide powder, wherein the parts by mass can be any suitable value such as 1g, 10g, 100g or 1000g, and the like, and the weighing is not limited.
Step two: mixing material
And (3) putting the raw materials into a mixer, and mixing for 2 hours to obtain a mixed material.
Step three: and putting the mixed material into a die, scraping the redundant material on the die, and then carrying out hot press molding for 13min on the mixed material in the die at 160 ℃, and obtaining the phenolic resin bonding agent diamond grinding tool after finishing the hot press program.
Tests prove that compared with the grinding tool without the modified wollastonite powder, the service life of the phenolic resin bonding agent diamond grinding tool prepared by the embodiment can be prolonged by 40%.
Example 2
The method comprises the following steps: weighing the following raw materials:
42 parts by mass of epoxy resin powder, 10 parts by mass of 400-mesh diamond powder, 30 parts by mass of 320-mesh black silicon carbide powder, 10 parts by mass of 360-mesh modified wollastonite powder, 30 parts by mass of zinc oxide powder and 5 parts by mass of chromium oxide powder are weighed.
Step two: mixing material
The raw materials are put into a mixer for mixing for 2.5 hours to obtain a mixed material.
Step three: and putting the mixed material into a die, scraping the redundant material on the die, and then carrying out hot press molding on the mixed material in the die for 14min at 155 ℃, and obtaining the phenolic resin bonding agent diamond grinding tool after finishing the hot press program process.
Tests prove that compared with a diamond grinding tool without the modified wollastonite powder, the service life of the phenolic resin bonding agent diamond grinding tool prepared by the embodiment can be prolonged by 50%.
Example 3
The method comprises the following steps: weighing the following raw materials:
38 parts by mass of polyamide resin powder, 8 parts by mass of 600-mesh diamond powder, 16 parts by mass of 400-mesh green silicon carbide powder, 14 parts by mass of 320-mesh black silicon carbide, 10 parts by mass of 300-mesh modified wollastonite powder, 28 parts by mass of zinc oxide powder and 4 parts by mass of chromium oxide powder are weighed.
Step two: mixing material
And (3) putting the raw materials into a mixer, and mixing for 3 hours to obtain a mixed material.
Step three: and putting the mixed material into a die, scraping the redundant material on the die, and then carrying out hot press molding on the mixed material in the die for 15min at 170 ℃, and obtaining the phenolic resin bonding agent diamond grinding tool after finishing the hot press program process.
Tests prove that compared with the grinding tool without the modified wollastonite powder, the service life of the phenolic resin bonding agent diamond grinding tool prepared by the embodiment can be prolonged by 45%.
Example 4
The method comprises the following steps: weighing the following raw materials:
38 parts by mass of melamine resin powder, 7 parts by mass of 320-mesh diamond powder, 27 parts by mass of 320-mesh green silicon carbide powder, 9 parts by mass of 240-mesh modified wollastonite powder, 26 parts by mass of zinc oxide powder and 3 parts by mass of chromium oxide powder are weighed.
Step two: mixing material
And (3) putting the raw materials into a mixer, and mixing for 2 hours to obtain a mixed material.
Step three: and putting the mixed material into a die, scraping the redundant material on the die, and then carrying out hot press molding on the mixed material in the die for 16min at 160 ℃, and obtaining the phenolic resin bonding agent diamond grinding tool after finishing the hot press program process.
Tests prove that compared with the grinding tool without the modified wollastonite powder, the service life of the phenolic resin bonding agent diamond grinding tool prepared by the embodiment can be prolonged by 60 percent.
Example 5
Weighing 10 parts by mass of phenolic resin, 10 parts by mass of epoxy resin, 10 parts by mass of melamine resin, 10 parts by mass of polyamide resin, resin melamine resin powder, 10 parts by mass of 300-mesh diamond powder, 15 parts by mass of 320-mesh green silicon carbide powder, 15 parts by mass of 600-mesh black silicon carbide powder, 10 parts by mass of 300-mesh modified wollastonite powder, 35 parts by mass of zinc oxide powder and 5 parts by mass of chromium oxide powder.
Step two: mixing material
And (3) putting the raw materials into a mixer, and mixing for 3 hours to obtain a mixed material.
Step three: and putting the mixed material into a die, scraping the redundant material on the die, and then carrying out hot press molding on the mixed material in the die for 14min at 165 ℃ to obtain the phenolic resin bonding agent diamond grinding tool after finishing the hot press program process.
Tests prove that compared with the grinding tool without the modified wollastonite powder, the service life of the phenolic resin bonding agent diamond grinding tool prepared by the embodiment can be prolonged by 55%.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalents and equivalent flow changes made by using the contents of the present specification, or applied directly or indirectly to other related technical fields are also included in the scope of the present invention.
Claims (10)
1. The resin bond diamond grinding tool is characterized by comprising the following components in parts by weight:
32 to 45 parts of resin binder, 6 to 15 parts of diamond, 25 to 35 parts of silicon carbide, 5 to 10 parts of modified wollastonite, 25 to 35 parts of zinc oxide and 3 to 5 parts of chromium oxide; wherein the modified wollastonite is needle-shaped wollastonite powder treated by a silane coupling agent.
2. The resin bond diamond abrasive tool of claim 1, wherein the resin bond diamond abrasive tool comprises the following components by weight:
38-40 parts of resin bonding agent, 7-10 parts of diamond, 27-30 parts of silicon carbide, 8-10 parts of modified wollastonite, 26-30 parts of zinc oxide and 3-5 parts of chromium oxide.
3. The resin bond diamond abrasive tool of claim 2, wherein the resin bond diamond abrasive tool comprises the following components by weight:
38 parts of the resin bonding agent, 7 parts of the diamond, 27 parts of silicon carbide, 9 parts of the modified wollastonite, 26 parts of zinc oxide and 3 parts of chromium oxide.
4. The resin bond diamond abrasive tool of any one of claims 1 to 3, wherein the resin bond is a thermosetting resin.
5. The resin bond diamond abrasive tool of claim 4, wherein the resin bond is at least one of a phenolic resin, an epoxy resin, a melamine resin, and a polyamide resin.
6. A preparation method of a resin bond diamond grinding tool is characterized by comprising the following steps:
weighing the following raw materials in parts by weight: 32-45 parts of resin binder, 6-15 parts of diamond powder, 25-35 parts of silicon carbide powder, 5-10 parts of modified wollastonite powder, 25-35 parts of zinc oxide powder and 3-5 parts of chromium oxide powder, wherein the modified wollastonite is needle-shaped wollastonite powder treated by a silane coupling agent;
mixing the raw materials to obtain a mixed material;
and putting the mixed material into a mould, and carrying out hot press molding on the mixed material in the mould to obtain the resin bonding agent diamond grinding tool.
7. The method of making a resin bonded diamond abrasive tool according to claim 6, wherein the step of mixing the raw materials to obtain a blend comprises:
and putting the raw materials into a mixer, and mixing for 2-3 h to obtain a mixed material.
8. The resin bond diamond abrasive tool of claim 6, wherein the step of hot press forming the composition in the mold to obtain the resin bond diamond abrasive tool comprises:
and carrying out hot press molding on the mixed material in the mold for 13-16 min at the temperature of 150-170 ℃ to obtain the resin bond diamond grinding tool.
9. The method of making a resin bond diamond abrasive tool as in any one of claims 6 to 8, wherein the diamond powder is at least one of a plurality of synthetic diamond powders of 150 mesh to 1000 mesh.
10. The method of making a resin bond diamond abrasive tool according to any one of claims 6 to 8, wherein the modified wollastonite powder has a particle size of 150 mesh to 1000 mesh.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910332580.7A CN111823150A (en) | 2019-04-23 | 2019-04-23 | Resin binder diamond grinding tool and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910332580.7A CN111823150A (en) | 2019-04-23 | 2019-04-23 | Resin binder diamond grinding tool and preparation method thereof |
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| CN111823150A true CN111823150A (en) | 2020-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936118A (en) * | 2021-01-21 | 2021-06-11 | 泉州众志新材料科技有限公司 | Special grinding block for rock plate and production method thereof |
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| CN107378804A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high cooling efficiency emery wheel material |
| CN108972368A (en) * | 2018-05-30 | 2018-12-11 | 安徽佑开科技有限公司 | A kind of resinoid bond hard grinding wheel |
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2019
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Patent Citations (6)
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|---|---|---|---|---|
| CN102532951A (en) * | 2011-10-28 | 2012-07-04 | 华东理工大学 | Method for toughening epoxy resin by adopting modified wollastonite |
| US20130305614A1 (en) * | 2012-03-30 | 2013-11-21 | Anthony C. Gaeta | Abrasive products having fibrillated fibers |
| CN103406838A (en) * | 2013-08-22 | 2013-11-27 | 镇江市砺河磨具有限公司 | Steel rail grinding wheel allowing less grinding smoke and dust and production method thereof |
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| CN107378804A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high cooling efficiency emery wheel material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112936118A (en) * | 2021-01-21 | 2021-06-11 | 泉州众志新材料科技有限公司 | Special grinding block for rock plate and production method thereof |
| CN112936118B (en) * | 2021-01-21 | 2022-07-05 | 泉州众志新材料科技有限公司 | Special grinding block for rock plate and production method thereof |
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Application publication date: 20201027 |