CN111571461A - Rubber coated diamond, polymer based diamond grinding wheel and method for manufacturing the same - Google Patents
Rubber coated diamond, polymer based diamond grinding wheel and method for manufacturing the same Download PDFInfo
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- CN111571461A CN111571461A CN201910878340.7A CN201910878340A CN111571461A CN 111571461 A CN111571461 A CN 111571461A CN 201910878340 A CN201910878340 A CN 201910878340A CN 111571461 A CN111571461 A CN 111571461A
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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
- B24D3/20—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
- B24D3/285—Reaction products obtained from aldehydes or ketones
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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
- B24D18/0063—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by extrusion
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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
- B24D3/20—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
- B24D3/22—Rubbers synthetic or natural
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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
- B24D3/34—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
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention provides a glue-coated diamond, a polymer-based diamond grinding wheel and a manufacturing method thereof, aiming at the technical problem that diamond is easy to fall off due to insufficient holding force of a polymer binding agent grinding layer on the diamond in the prior art, wherein the polymer-based grinding wheel and the manufacturing method thereof comprise the steps that a hot vulcanization adhesive is arranged on the surface of the diamond, the adhesive is coated on the outer surface of the joint of a base layer and the grinding layer in advance, after the grinding wheel is heated and pressurized, the hot vulcanization adhesive has good diffusion, wetting, adsorption and permeation capabilities between a binding agent of the grinding layer and a metal matrix, a cross-linking reaction is generated between the binding agent of the grinding layer and the surface of the metal matrix, and the binding capability between the metal matrix and the grinding layer is further improved through the adhesion force of an interface, the internal adsorption force and the effects of various chemical bonds; can effectively improve the stress capacity of the grinding wheel and prevent or reduce the phenomenon that the grinding material layer is separated from the matrix layer in the using process.
Description
Technical Field
The invention relates to the field of manufacturing of diamond grinding tools, in particular to a glue-coated diamond and polymer-based diamond grinding wheel and a manufacturing method thereof.
Background
The high polymer base diamond grinding wheel generally comprises a base body and an abrasive layer coated on the outer layer of the base body, wherein the abrasive layer is formed by molding diamond and an organic polymer binder, and when the materials are selected, the abrasive layer usually adopts rubber or resin or organic polymers such as rubber and resin mixing agent as a binder base material, and the diamond is fixed by the binder; the supporting base body is generally made of steel or aluminum, and the grinding material layer and the base body layer are combined in a mould pressing pressure maintaining mode. The diamond in the grinding material and the polymer binder are integrated through hot-press molding by a die. The diamond grinding wheel adopting the structure and the method has no wetting property with the diamond, but is simply the impregnated mechanical bonding force, so that the polymer bonding agent grinding wheel has insufficient holding force on the diamond in the grinding process, the diamond can fall off, and the grinding tool is seriously worn and has poor wear resistance in the using process, thereby influencing the using and grinding effect of the grinding tool.
Disclosure of Invention
The invention aims to provide a glue-coated diamond, a polymer-based diamond grinding wheel and a manufacturing method thereof, aiming at the technical problem that in the prior art, the diamond is easy to fall off due to insufficient holding force of a polymer binder grinding material layer on the diamond.
The purpose of the invention is realized by the following technical scheme:
a glue coated diamond is provided, wherein the surface of the diamond is provided with an adhesive which is a hot vulcanization adhesive;
the surface of the diamond is provided with a metal coating, the metal coating is coated with a hot vulcanization adhesive, and the metal coating is one or an alloy of more than two metals of titanium, copper, chromium and tungsten.
A high-molecular-base diamond grinding wheel comprises a matrix and a powder layer, wherein glue-coated diamonds are uniformly distributed in the powder layer, and are combined with a bonding agent in the powder into a whole through hot-press molding of a die;
the outer surface of the substrate is coated with a hot vulcanization adhesive;
the base material of the powder layer is a high-molecular-group binding agent, the high-molecular-group binding agent is one of a resin binding agent, a rubber binding agent or a mixed binding agent of resin and rubber, and the hot vulcanization adhesive is a single-component or double-component adhesive;
the outer surface of the matrix is provided with a knurled layer, the hot vulcanization adhesive is coated outside the knurled layer, and the knurling is diamond knurling, V-shaped knurling or wave-shaped knurling;
a sand blasting layer is arranged on the outer surface of the knurled layer, and a hot vulcanization adhesive is coated outside the sand blasting layer;
a manufacturing approach of a macromolecule base diamond grinding wheel, do the hot vulcanization adhesive coating treatment to the external surface of diamond at first, after drying, mix it with abrasive powder evenly, then adopt the mould hot briquetting to make matrix and abrasive powder into an organic whole, get the macromolecule base diamond grinding wheel, the substrate of the abrasive powder is macromolecule base binder;
coating a hot vulcanization adhesive on the outer surface of the matrix, and then carrying out hot press molding on the abrasive powder and the matrix through a mold;
coating the surface of the diamond by using a hot vulcanization adhesive with the trademark of CIL24 or TH-715A, wherein the coating thickness of the hot vulcanization adhesive is 0.01-0.2mm, and the coating thickness of the hot vulcanization adhesive is 0.05-0.3mm, and the coating thickness of the hot vulcanization adhesive is W307 or megum538+ megum 3276.
According to the manufacturing method of the diamond-coated diamond and polymer-based diamond grinding wheel, the hot vulcanization adhesive is coated on the surface of the diamond, so that the diamond is combined with the polymer binder through the adhesive, and in the hot press molding process, the adhesive has good diffusion, wetting, adsorption and permeability on the surface of the diamond and the polymer binder, so that a cross-linking reaction occurs between the diamond and the polymer binder, the interfacial adhesion and internal adsorption are formed, a new binding force is increased on the basis of the mechanical binding force, the binding strength of the diamond and the polymer binder is improved, the diamond is prevented from falling off, and the wear resistance of the diamond grinding wheel is improved. Through test comparison, the wear resistance is improved by 25-38%.
The high-molecular-base diamond grinding wheel with the structure prepared by the method has the advantages that the hot vulcanization adhesive layer is arranged between the grinding material layer and the base layer as the middle layer, the adhesive layer is coated on the outer surface of the joint of the base layer and the grinding material layer in advance, after the grinding wheel is heated and pressurized, the hot vulcanization adhesive has good diffusion, wetting, adsorption and permeability between the binding agent of the grinding material layer and the metal base body, a cross-linking reaction is generated between the binding agent in the grinding material layer and the surface of the metal base body, and the binding capacity between the metal base body and the grinding material layer is improved through the adhesion force of an interface, the internal adsorption force and the action of various chemical bonds; therefore, the grinding material layer can be firmly coated on the outer surface of the base layer, the stress capacity of the grinding wheel can be effectively improved, and the phenomenon that the grinding material layer is separated from the base layer in the using process is prevented or reduced.
Drawings
FIG. 1 is a schematic structural view of a polymer-based diamond grinding wheel according to the present invention;
fig. 2 is a schematic structural view of an embodiment of the glue-coated diamond of the present invention.
Description of the reference numerals
1-a substrate; 2-knurling layer; 3-sand blasting; 4-an adhesive layer; 5-powder layer; 6-diamond; 7-glue; 8-metal plating.
Detailed Description
The invention is further described below with reference to specific examples:
as shown in fig. 1 to 2, the polymer matrix diamond grinding wheel of the present invention includes a base 1 and an abrasive layer 5, wherein the base 1 may be made of a metal material such as aluminum, iron, copper, etc., and aluminum is preferably used as the base material due to its low density, so as to ensure that the overall weight of the polymer matrix diamond grinding wheel is light. The abrasive layer 5 comprises diamond 6 and a polymer binder, and the diamond 6 and the polymer binder are combined into a whole through processes such as pressure maintaining, sintering and the like. In order to improve the holding force of the polymer binder to the diamond, the surface of the diamond 6 is coated with the adhesive 7 to form glue-coated diamond, the adhesive 7 is preferably hot vulcanized adhesive, the polymer binder is adhered to the surface of the diamond 6 by the hot vulcanized adhesive, the hot vulcanized adhesive is heated to perform a cross-linking reaction with the glue-coated diamond 6 and the polymer binder, and the hot vulcanized adhesive infiltrates, diffuses and infiltrates the diamond and the polymer binder through the cross-linking reaction, so that the bonding strength between the diamond and the polymer binder is improved, and the holding degree of the polymer binder to the diamond is improved.
Further, a metal coating layer 8 is arranged on the surface of the diamond 6, and a hot vulcanization adhesive is coated outside the metal coating layer 8. The metal plating layer 8 may be titanium plating, or copper plating, chromium plating, tungsten plating, or an alloy thereof. After the metal coating is arranged, when sintering is carried out, a cross-linking reaction occurs between the hot vulcanization adhesive and the metal coating and the polymer binder, and the infiltration, diffusion and permeability of the metal coating are superior to those of diamond, so that the bonding between the diamond and the polymer binder is stronger.
Furthermore, an adhesive layer 4 is arranged between the abrasive layer 5 and the substrate 1, the adhesive layer is made of hot vulcanizing agent adhesive, and the adhesive layer 4 enhances the bonding strength of the powder layer 5 and the substrate 1 and prevents the powder layer 5 from being separated from the substrate 1.
Furthermore, the knurling layer 3 is arranged on the outer circumferential surface of the base body, and the knurling forms net-shaped stripes on the outer surface of the base body, so that not only is the surface roughness increased, but also the contact area of the hot vulcanization adhesive and the base body 1 is increased, and the binding force of the hot vulcanization adhesive and the base body is improved.
Furthermore, the outer surface of the knurled layer is subjected to sand blasting treatment to form a sand blasting layer 3, the sand blasting layer 3 further increases the surface roughness of the knurled layer, and the adhesive force of the hot vulcanization adhesive is improved.
Step 1, performing hot vulcanization adhesive coating treatment on the surface of diamond: the grade of the hot vulcanization adhesive is CIL24, the surface of the diamond is preferably cleaned before coating, the hot vulcanization adhesive is fully stirred, then the hot vulcanization adhesive is coated on the surface of the diamond, and the thickness of the hot vulcanization agent is preferably 0.05-0.1 mm; and drying the diamond coated with the hot vulcanizing agent, and then carrying out ball milling and screening.
Coating a hot vulcanization adhesive on the outer surface of the diamond by adopting the following method:
step 1: fully stirring the glue solution before weighing the glue; weighing diamond and hot vulcanization adhesive according to the weight ratio of 2.5-4.5: 1; generally the diamond coating amount does not exceed 2 kg; putting the diamond into an open container, gradually introducing a hot vulcanization adhesive solution and stirring until the diamond is wetted by the hot vulcanization adhesive;
step 2: the wetted diamond and the container are put into a hot air drying furnace at the temperature of 100-140 ℃ together for drying for 1-3 hours; stirring every 10 minutes 30 minutes before the drying process, which is favorable for drying, fully and uniformly gluing, and observing that the coated diamond is fully dried by visual observation and has a partial caking state;
and step 3: taking out the coated diamond from the container, putting the diamond into a plastic ball milling barrel with the diameter of 300mm and the height of 350mm, simultaneously putting nylon short rods with the diameter of 6-30 mm, wherein the length of the short rods is 35-60mm,
ball milling is carried out according to the ratio of the ball milling rod to the diamond being 1.5-2.5: 1, and the ball milling time is 1 hour;
and 4, step 4: selecting a screen with a matched diamond mesh number for screening, wherein materials among undersize materials with a granularity larger than the diamond mesh number by one and oversize materials with a granularity smaller than the diamond mesh number by one are all available materials; performing ball milling on oversize products with one granularity number larger than the diamond mesh number again, and collecting and intensively processing undersize products with one granularity number smaller than the diamond mesh number;
the method of the present invention is further described below by taking resin binder, rubber binder and steel fiber as examples respectively:
example 1-1: the resin binder is adopted, and the following formula can be adopted, and the components are mixed according to the mass ratio:
step 1, coating treatment is carried out on diamond: the hot vulcanization adhesive is CIL24, the surface of the diamond is preferably cleaned before coating, the hot vulcanization adhesive is fully stirred, and then the hot vulcanization adhesive is coated on the surface of the diamond, wherein the thickness of the hot vulcanization agent is 0.05-0.1 mm; and drying the diamond coated with the hot vulcanizing agent, and then carrying out ball milling and screening.
And 2, taking materials according to the formula, mixing the materials according to the component formula, mixing for 1 hour by adopting a double-motion mixer, taking the materials and sealing for storage.
Step 3, processing the polishing wheel by adopting a mould pressing process: and (4) heating while pressurizing, pressurizing and heating to the hot pressing temperature, maintaining the pressure, and removing the pressure, heat preservation and solidification after pressure maintaining. The parameters are as follows:
hot pressing temperature: 160-200 ℃;
pressure maintaining: 0.1 to 0.5 ton/cm 2,
pressure maintaining time: 10-60 minutes;
and (3) heat preservation and curing time: 120 and 480 minutes.
Wherein the curing agent can be urotropine, and can be PF3502 thermosetting phenolic resin.
Wherein the thermosetting phenolic resin is used as a support main body, 200/230-mesh diamond is preferably used as a main abrasive, Cu and ZnO are respectively used for improving the heat conductivity and heat resistance of the abrasive layer, and SiC can play a role in auxiliary grinding.
Examples 1 to 2
When the surface of the substrate is coated with the hot vulcanization adhesive, the substrate is firstly treated as follows and then is subjected to mould pressing. Cleaning the surface of the substrate, brushing a hot vulcanization adhesive with the brand number of W307 and the thickness of 0.1-0.2mm, and then drying. Or knurling the surface of the substrate, performing sand blasting, cleaning the surface of the substrate, and brushing the hot vulcanization adhesive.
The rest of the examples are the same as those of example 1-1
Example 2-1: the rubber bonding agent is adopted, and the rubber bonding agent,
step 1 is as in the example.
Step 2, adopting the following formula, wherein the contents of the components are calculated according to the mass ratio:
25-50% of 170/200 mesh diamond coated with a hot vulcanization adhesive, the brand of which is: TH-715A; the thickness is 0.15-0.2 mm.
45-50% of CR-2322 mixed rubber;
5-10% of brightening powder.
Wherein, the diamond is the main abrasive, the CR-2322 mixed rubber is the supporting body, and the polishing powder can improve the hardness of the grinding tool and assist in polishing.
Step 3, processing the polishing wheel by adopting a mould pressing process:
pressure maintaining temperature: 190 ℃ at 150 ℃;
pressure maintaining: 0.05-0.35 ton/cm 2;
pressure maintaining time: 10-60 minutes;
and (3) heat preservation and curing time: 120 and 480 minutes.
When the surface of the substrate is coated with the hot vulcanizing agent adhesive layer, the substrate is firstly treated as follows and then is molded. Cleaning the cleaned surface of the substrate, and brushing a hot vulcanization adhesive; the hot vulcanization adhesive is provided with the brand number of megum538+ megum 3276; the thickness of the hot vulcanization adhesive is 0.1-0.2mm, and then drying treatment is carried out. Or knurling the surface of the substrate, performing sand blasting, cleaning the surface of the substrate, and brushing the hot vulcanization adhesive.
Example 3
Adopts resin binder and steel fiber as reinforcing agent, and the formula of the components is that according to the mass ratio,
15-58% of PF-3306 modified phenolic resin;
20-40% of steel fiber with the wire diameter of 8um and the length of 0.3 mm;
18.75-37.5% of 500-800-mesh diamond coated with TH-715A or CIL24 hot vulcanization adhesive;
CeO2 2-10％；
the modified phenolic resin is used as a support main body, coated diamonds are used as main abrasive materials, steel fibers are used as reinforcing materials, and CeO2 is used as a brightening material; the coated diamond can be combined with resin bonding agents and steel fibers, so that the strength of a material layer is further improved;
step 1, coating treatment is carried out on diamond: the hot vulcanized rubber is a hot vulcanized adhesive with the mark number of TH-715A or CIL24, the surface of the diamond is cleaned before coating, the hot vulcanized rubber is fully stirred, then the hot vulcanized adhesive is coated on the surface of the diamond, and the thickness of the hot vulcanized agent is preferably 0.05-0.1 mm; and drying the diamond coated with the hot vulcanizing agent, and then carrying out ball milling and screening.
When the surface of the substrate is coated with the hot vulcanizing agent adhesive layer, the substrate is firstly treated as follows and then is molded. Cleaning the cleaned surface of the substrate, brushing heat vulcanized rubber, selecting a brand W307 heat vulcanized adhesive for the heat vulcanized rubber, wherein the thickness of the heat vulcanized rubber is generally 0.1-0.2mm, and then drying. Or knurling the surface of the substrate, performing sand blasting, cleaning the surface of the substrate, and brushing the hot vulcanized rubber.
And 2, taking materials according to the formula, mixing the materials according to the component formula, mixing for 1 hour by adopting a double-motion mixer, taking the materials and sealing for storage.
Step 3, preparing the polishing wheel by adopting a mould pressing process:
hot pressing temperature: 160-200 ℃;
pressing pressure: 0.1 to 0.5 ton/cm 2,
pressure maintaining time: 10-60 minutes;
and (3) heat preservation and curing time: 120 and 480 minutes.
The polishing wheel adopting the formula has the advantages that the grinding material layer is not easy to separate from the base layer, the bonding force between the diamond and the grinding material layer is good, and the service life of a single groove can reach 4000 meters.
The performance indexes of the grinding wheel made of the diamond coated with the hot vulcanizing agent and the common diamond are compared:
dividing the same batch of diamonds with the model number of A10 into two parts, wherein one part is subjected to diamond coating treatment, and the other part is not subjected to coating treatment; the grinding wheel for the test is prepared by adopting the same resin binder formula and the same pressure maintaining process, and is compared under the conditions of the same equipment and process parameters in the field of silicon wafer thinning, wherein the data is as follows:
1.1 resin samples
1.2 test results
It can be seen that the diamond coated hot vulcanized bond abrasive wheel is significantly more wear resistant than the wheel without the hot vulcanized bond, with a 1.32 times wear resistance, for the resin bond formulation wheel.
Dividing the same batch of diamonds with the model A8 into two parts, wherein one part is subjected to diamond coating treatment, and the other part is not subjected to coating treatment; the same rubber binder formula and the same mold pressing process are adopted to prepare test products and test conditions, and the comparison is carried out under the same equipment and parameters under the fine grinding working condition of glassware, and the data is as follows:
1.2 rubber sample proportioning
| Sample number | Rubber binder | Brightening powder | Diamond | Remarks for note |
| JMP-005 | 52.5％ | 10％ | 37.5％ | Uncoated diamond |
| JMP-006 | 52.5％ | 10％ | 37.5％ | Coated diamond |
It can be seen that the diamond coated hot vulcanising agent wheel is significantly more wear resistant than the wheel without the hot vulcanising agent for the wheel with the rubber bond formulation, which is 1.38 times more wear resistant.
Usage effect data:
the grinding wheel and the common grinding wheel grinding layer which are provided with the hot vulcanization adhesive layer between the grinding material layer and the base layer are combined with the firmness contrast, as follows:
1. the combination state of the material layer and the matrix is checked through knocking in the manufacturing process, and the checking method is to knock a grinding wheel by a small wooden hammer; the sound of the grinding wheel is clear and crisp and qualified, and the sound of the grinding wheel is dull and hoarse and unqualified, and the grinding wheel is treated as a waste product. Taking 100 grinding wheels as an example, the comparative inspection is carried out, and the inspection results are as follows:
2. customer usage exception feedback comparison
3. Destructive verification observation is carried out, and the fracture positions and the fracture states of the material layer and the matrix are observed by carrying out a material layer destructive test on the grinding wheel with the original structure and the grinding wheel with the new structure;
the yield, the customer complaint rate and the destructive verification of the manufacturing process can show that the structural application can obviously improve the bonding strength of the resin or rubber grinding wheel material layer and the matrix.
Claims (10)
1. The glue-coated diamond is characterized in that a glue is arranged on the surface of the diamond, and the glue is a hot vulcanization glue.
2. A glue coated diamond according to claim 1, characterised in that the diamond (6) is provided with a metal coating (8) on the surface, the metal coating (8) is coated with the hot-vulcanising glue (7), and the metal coating is one of titanium, copper, chromium and tungsten or an alloy of any two or more metals.
3. A polymer-based diamond grinding wheel comprising a substrate and a powder layer, wherein glue-coated diamonds are uniformly distributed in said powder layer, characterized in that, using the diamonds of claim 1 or 2, said glue-coated diamonds (6) are integrated with a binder in said powder by means of a mold hot press molding.
4. The polymer matrix diamond abrasive wheel according to claim 1, wherein said outer surface of said matrix is coated with a heat-curable adhesive.
5. The polymer-based diamond grinding wheel according to claim 3, wherein the base material of the powder layer is a polymer-based binder, the polymer-based binder is one of a resin binder, a rubber binder, or a mixed binder of a resin and a rubber, and the heat-curable adhesive is a one-component or two-component adhesive.
6. The high molecular weight matrix diamond grinding wheel according to claim 4, wherein said matrix (1) is provided with a knurled layer (2) on the outer surface, said hot-vulcanized adhesive is coated on the knurled layer, and said knurling is diamond knurling, V-shaped knurling or wave-shaped knurling.
7. The polymer-based diamond grinding wheel according to claim 6, wherein said knurl layer (2) is provided with a sand blasting layer (3) on the outer surface thereof, and said heat-curable adhesive is coated on the outside of said sand blasting layer (3).
8. A manufacturing method of a polymer-based diamond grinding wheel is characterized in that firstly, the outer surface of diamond is coated with hot vulcanization adhesive, after drying, the diamond is uniformly mixed with abrasive powder, then a matrix and the abrasive powder are manufactured into a whole by adopting mould hot press molding, and the polymer-based diamond grinding wheel is obtained, wherein the base material of the abrasive powder is polymer-based binder.
9. The method of manufacturing a polymer-based diamond-impregnated wheel according to claim 8, wherein the abrasive powder is hot-pressed with the substrate by a mold after the external surface of the substrate is coated with a hot-vulcanization adhesive.
10. The method of manufacturing a polymer-based diamond-impregnated wheel according to claim 9, wherein the surface of the diamond is coated with a hot-vulcanization adhesive having a designation of CIL24 or TH-715A, the hot-vulcanization adhesive being coated to a thickness of 0.01 to 0.2mm, and the surface of the substrate is coated with a hot-vulcanization adhesive having a designation of W307 or megum538+ megum3276, the hot-vulcanization adhesive having a thickness of 0.05 to 0.3 mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112643560A (en) * | 2020-12-18 | 2021-04-13 | 郑州磨料磨具磨削研究所有限公司 | Novel grinding wheel capable of preventing grinding layer of grinding wheel from being out of ring and machining method of novel grinding wheel |
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