CN113337249A - High-holding-force abrasive material and preparation method and application thereof - Google Patents
High-holding-force abrasive material and preparation method and application thereof Download PDFInfo
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- CN113337249A CN113337249A CN202110717365.6A CN202110717365A CN113337249A CN 113337249 A CN113337249 A CN 113337249A CN 202110717365 A CN202110717365 A CN 202110717365A CN 113337249 A CN113337249 A CN 113337249A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
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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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- 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
- B24D7/02—Wheels in one piece
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Abstract
The invention provides a high-holding-force abrasive material and a preparation method and application thereof, which are used for solving the technical problems of low bonding strength, short service life of the abrasive material, low processing efficiency and large workpiece opening breakage size caused by the fact that physical diffusion and chemical reaction cannot effectively occur among the abrasive material, an outer-coated metal and a bonding agent interface due to low holding force of the abrasive material of the existing superhard material abrasive wheel. The high-holding-force grinding material comprises a grinding material and a filler, wherein the grinding material is a plated diamond grinding material, and the filler comprises 10-50 parts by mass of a plated diamond grinding material, 10-60 parts by mass of calcium oxide powder and 10-70 parts by mass of magnesium oxide powder. According to the invention, calcium oxide powder and magnesium oxide powder are used as fillers to be combined with the diamond-coated abrasive, and the high-holding-force abrasive is prepared by a simple and convenient preparation method, is used for manufacturing the superhard grinding wheel, can effectively prolong the service life and the processing efficiency of the grinding wheel, and can reduce the size of workpiece opening breakage.
Description
Technical Field
The invention relates to the technical field of superhard material products, in particular to a high-holding-force abrasive material and a preparation method and application thereof.
Background
The superhard material grinding wheel belongs to a superhard material die and is widely applied in modern production, for example, the superhard material chamfering grinding wheel belonging to the superhard material grinding wheel is mainly applied to processing the edges and edges of materials such as glass, semiconductor wafers, LED wafers and the like, and concentric circular arc microgrooves are distributed on the excircle.
Because the processed object is mainly a hard and brittle material, in order to reduce the processing breakouts of the brittle material, the superhard material chamfering grinding wheel needs to have strong holding capacity on the grinding materials, and the regulation of the binding capacity of the grinding materials mainly comprises methods such as binder regulation, grinding material treatment and the like. On the premise of keeping the bonding agent unchanged, the method for processing the outer coating material of the abrasive is a method which is used more at present. Wherein plating of the diamond surface is a currently common practice. The plated diamond abrasive can improve the bonding strength of the abrasive and the bonding agent to a certain extent, but at the interface of the metal layer and the diamond, the bonding effect of the metal and the diamond is not satisfactory because the metal and the diamond belong to two different materials.
The superhard grinding wheel has the advantages that due to the process requirement and low forming temperature, the interfaces of the grinding material, the outer metal and the bonding agent cannot effectively generate physical diffusion and chemical reaction, the bonding strength is low, and the phenomena of short service life, low processing efficiency and standard exceeding of workpiece opening size of the grinding wheel frequently occur.
In order to solve the technical problem of the use of the superhard material grinding wheel, the holding force of the grinding material needs to be improved, wherein the holding force refers to the force which enables the diamond to be firmly bonded without falling off by the mechanical biting force and the chemical acting force of the metal matrix on the diamond in the diamond tool. Generally, the larger the compactness of the metal matrix, the larger the holding force on the diamond, and the less the diamond is easy to fall off from the metal matrix, so as to fully exert the cutting function of the diamond. So that the diamond tool is sharp enough and a long service life is guaranteed.
Therefore, there is a need for a high holding force abrasive to improve the bonding force between the metal coated with the abrasive and the diamond surface, so as to increase the service life of the grinding wheel made of superhard material, improve the processing efficiency and reduce the workpiece chipping.
Disclosure of Invention
The invention provides a high holding force abrasive material and a preparation method and application thereof, aiming at the technical problems of low bonding strength, short service life of the abrasive material, low processing efficiency and large workpiece opening size caused by the fact that the interfaces of the abrasive material, the outer-coated metal and a binding agent cannot effectively generate physical diffusion and chemical reaction among the abrasive material, the outer-coated metal and the binding agent of the existing superhard material abrasive wheel.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the high-holding-force grinding material comprises a grinding material and a filler, wherein the grinding material is a plated diamond grinding material, and the filler comprises 10-50 parts by mass of a plated diamond grinding material, 10-60 parts by mass of calcium oxide powder and 10-70 parts by mass of magnesium oxide powder.
Further, the plating layer of the diamond abrasive is a metal plating layer, and the metal species of the metal plating layer comprises titanium, nickel or copper.
Furthermore, the particle sizes of the calcium oxide powder and the magnesium oxide powder are both less than or equal to 50 mu m, and the particle size of the plated diamond grinding material is 20-400 mu m.
A preparation method of a high holding force abrasive material is used for preparing the high holding force abrasive material and comprises the following steps:
s1, respectively grinding the calcium oxide powder and the magnesium oxide powder, then placing the ground calcium oxide powder and the magnesium oxide powder into a resistance furnace for heating and heat preservation to obtain anhydrous calcium oxide powder and anhydrous magnesium oxide powder;
s2, grinding and mixing the anhydrous calcium oxide powder and the anhydrous magnesium oxide powder obtained in the step S1 with the diamond-coated abrasive to obtain a mixture;
s3, carrying out heat treatment on the mixture obtained in the step S2 in a nitrogen atmosphere, and cooling to room temperature after the heat treatment is finished to obtain a treated mixture;
s4, sieving the processed mixture obtained in the step S3 by using a screen to obtain a processed grinding material;
s5, washing the processed abrasive material obtained in the step S4 with dilute hydrochloric acid in a cold water bath to obtain an acid-washed abrasive material;
s6, filtering the acid-washed abrasive material obtained in the step S5, and washing the abrasive material with deionized water to obtain the water-washed abrasive material;
and S7, drying the washed abrasive obtained in the step S6 to obtain the abrasive with high holding power.
Further, the heating temperature of the calcium oxide powder and the magnesium oxide powder in the step S1 is 600 ℃, and the heat preservation time is 15-30 min.
Further, the temperature of the heat treatment of the mixture in the step S3 is 700-.
Further, the mesh number of the screen in the step S4 is 200-; the concentration of the dilute hydrochloric acid in the step S5 is 1-5%.
Further, the drying temperature of the washed abrasive in the step S7 is 40-60 ℃, and the drying time is 1-2 h.
The high holding force abrasive material obtained by the preparation method of the high holding force abrasive material is applied to the field of superhard material grinding wheels.
Furthermore, the high holding force abrasive is applied to the preparation of the superhard material grinding wheel, and the superhard material grinding wheel comprises a chamfering grinding wheel, a smooth curved grinding wheel and a hard alloy strong grooving grinding wheel.
The invention has the beneficial effects that:
1. the high-holding-force grinding material is used for preprocessing the required grinding material before the grinding wheel is formed, improving the binding force between the metal coated outside the grinding material and the surface of the diamond, being used for manufacturing the grinding wheel made of the superhard material, effectively prolonging the service life of the grinding wheel and improving the processing efficiency, and reducing the workpiece breakage.
2. The preparation method of the high holding force abrasive material is simple to operate, convenient to control the process, capable of preparing the high holding force abrasive materials with different performances according to needs and convenient to use for manufacturing the superhard material grinding wheel.
3. The high-holding-force abrasive prepared by the high-holding-force abrasive can be used in the field of superhard material grinding wheels, and the manufactured superhard material grinding wheels are various in types and good in quality, and can meet the requirements of different use scenes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of a method for preparing the high holding force abrasive of the present invention.
FIG. 2 shows a metallic bond superhard material chamfering wheel for testing the performance of the prepared abrasive according to the present invention.
FIG. 3 is a wear ratio testing wheel for testing the wear ratio of the prepared abrasive material according to the present invention.
In the figure, 1 is a metal substrate of a grinding wheel, and 2 is a grinding wheel abrasive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1, a high holding force abrasive includes an abrasive and a filler, the abrasive is a plated diamond abrasive, the filler includes calcium oxide powder and magnesium oxide powder, and the plated diamond abrasive and the filler are in the following parts by weight: 30 parts of plating diamond grinding material, 60 parts of calcium oxide powder and 70 parts of magnesium oxide powder; the plating layer of the plating diamond abrasive is a metal plating layer, the plating metal of the metal plating layer is titanium, the granularity of the plating diamond abrasive is 40/50, and the grain sizes of the calcium oxide powder and the magnesium oxide powder are both less than or equal to 20 mu m.
For the high-holding-force abrasive material of this embodiment, as shown in fig. 1, the high-holding-force abrasive material of this embodiment is prepared by the following steps:
s1, grinding 60 parts of calcium oxide powder and 70 parts of magnesium oxide powder respectively, then placing the ground calcium oxide powder and the ground magnesium oxide powder into a resistance furnace to be heated and preserving heat, and obtaining anhydrous calcium oxide powder and anhydrous magnesium oxide powder, specifically, grinding the calcium oxide powder and the magnesium oxide powder by using a pot body in the step S1, and heating the ground calcium oxide powder and the magnesium oxide powder in a box-type resistance furnace, wherein the heating temperature is 600 ℃, and the preserving heat time is 30min, so that water in the calcium oxide powder and the magnesium oxide powder can be completely discharged;
s2, grinding and mixing the anhydrous calcium oxide powder and the anhydrous magnesium oxide powder obtained in the step S1 and the plated diamond abrasive to obtain a mixture, specifically, in the step S2, adding the anhydrous calcium oxide powder, the magnesium oxide powder and 30 parts of the plated diamond abrasive into a mortar, grinding and mixing until color difference cannot be observed by naked eyes, so as to fully mix;
s3, performing heat treatment on the mixture obtained in the step S2 in a nitrogen atmosphere, cooling to room temperature after the heat treatment is finished, and obtaining the treated mixture, specifically, when the mixture is subjected to heat treatment in the step S3, slowly heating the mixture to 800 ℃ at a heating rate of 50 ℃/h, and performing heat treatment for 1h, so that cracks caused by stress generated by different thermal expansion coefficients between a metal coating and a diamond interface can be avoided;
s4, sieving the processed mixture obtained in the step S3 by using a screen to obtain a processed abrasive, specifically, sieving by using a No. 50 screen in the step S4, and separating the plated diamond abrasive from calcium oxide powder and magnesium oxide powder in the mixture by a sieving means to reduce the consumption of hydrochloric acid required by the next pickling step;
s5, washing the treated abrasive obtained in the step S4 with dilute hydrochloric acid in a cold water bath to obtain an acid-washed abrasive, specifically, the concentration of the dilute hydrochloric acid in the step S5 is 5%, slowly adding a small amount of the abrasive obtained in the step S4 into the dilute hydrochloric acid under the condition of the cold water bath, and rapidly stirring with a glass rod to obtain the acid-washed abrasive to prevent a large amount of heat release in a neutralization reaction;
s6, filtering the acid-washed abrasive material obtained in the step S5 and washing the abrasive material with deionized water to obtain the washed abrasive material, specifically, pouring the acid washing solution and the abrasive material on the filter paper by using filter paper, a funnel and a beaker in the step S6 to filter out the abrasive material, and washing the abrasive material three times by using the deionized water;
s7, drying the washed abrasive material obtained in the step S6 to obtain the abrasive material with high holding power, specifically, drying the washed abrasive material for 1h by using an oven with the temperature of 60 ℃ in the step S7 to prevent the coating from being oxidized in a humid environment.
The high-holding-force abrasive prepared by the preparation method of the embodiment can be used for preparing a superhard material grinding wheel, and in the embodiment, the high-holding-force abrasive is used for preparing a chamfering grinding wheel, so that the service life of the superhard material chamfering grinding wheel is prolonged, the processing efficiency is improved, and the workpiece breakage is reduced. In other embodiments of the invention, the method can also be applied to the preparation of other superhard material grinding wheels such as smooth curved grinding wheels and hard alloy strong grooving grinding wheels.
Example 2, a high holding force abrasive, in this example, relative to example 1, the mass parts of the plated diamond abrasive and the filler were adjusted to: 50 parts of plating diamond grinding material, 40 parts of calcium oxide powder and 60 parts of magnesium oxide powder.
For the high-holding abrasive of this embodiment, as shown in fig. 1, this embodiment uses a method for preparing a high-holding-force abrasive, and the method for preparing a high-holding-force abrasive of this embodiment adjusts the heat-preserving time of step S1 to 15min, compared to embodiment 1; adjusting the heating rate of the step S3 to 100 ℃/h, and adjusting the heat preservation time of the heat treatment to 0.5 h; the dilute hydrochloric acid concentration in step S5 was adjusted to 1%.
The other compositions of the high-holding abrasive and the other steps of the preparation method of the high-holding-force abrasive in this embodiment are the same as those in embodiment 1, and are not described herein again.
The high-holding-force abrasive prepared by the preparation method of the embodiment can be used for preparing a superhard material grinding wheel, and in the embodiment, the high-holding-force abrasive is used for preparing a chamfering grinding wheel, so that the service life of the superhard material chamfering grinding wheel is prolonged, the processing efficiency is improved, and the workpiece breakage is reduced. In other embodiments of the invention, the method can also be applied to the preparation of other superhard material grinding wheels such as smooth curved grinding wheels and hard alloy strong grooving grinding wheels.
Example 3, a high holding force abrasive, in this example, relative to example 1, the mass parts of the plated diamond abrasive and the filler were adjusted to: 10 parts of plating diamond grinding material, 10 parts of calcium oxide powder and 10 parts of magnesium oxide powder; the coated diamond grit size was adjusted to 270/325.
For the high-holding abrasive of this embodiment, as shown in fig. 1, this embodiment uses a method for preparing a high-holding-force abrasive, and the method for preparing a high-holding-force abrasive of this embodiment is to adjust the heat treatment temperature of step S3 to 1000 ℃ relative to embodiment 1; adjusting the mesh number of the screen in the step S4 to 800 #; the drying temperature of step S7 was adjusted to 40 ℃, and the drying time was adjusted to 30 min.
The other compositions of the high-holding abrasive and the other steps of the preparation method of the high-holding-force abrasive in this embodiment are the same as those in embodiment 1, and are not described herein again.
The high-holding-force abrasive prepared by the preparation method of the embodiment can be used for preparing a superhard material grinding wheel, and in the embodiment, the high-holding-force abrasive is used for preparing a chamfering grinding wheel, so that the service life of the superhard material chamfering grinding wheel is prolonged, the processing efficiency is improved, and the workpiece breakage is reduced. In other embodiments of the invention, the method can also be applied to the preparation of other superhard material grinding wheels such as smooth curved grinding wheels and hard alloy strong grooving grinding wheels.
Example 4, a high holding force abrasive, in this example, relative to example 1, the mass parts of the plated diamond abrasive and the filler were adjusted to: 40 parts of plating diamond grinding material, 30 parts of calcium oxide powder and 30 parts of magnesium oxide powder; adjusting the particle size of the plated diamond abrasive to 270/325; the plating metal of the plated diamond is copper.
For the high-holding abrasive of this embodiment, as shown in fig. 1, this embodiment uses a method for preparing a high-holding-force abrasive, and the method for preparing a high-holding-force abrasive of this embodiment adjusts the heat-preserving time of step S1 to 15min, compared to embodiment 1; adjusting the heat treatment temperature of step S3 to 700 ℃; adjusting the mesh number of the screen in the step S4 to 800 #; the drying temperature of step S7 was adjusted to 40 ℃, and the drying time was adjusted to 30 min.
The other compositions of the high-holding abrasive and the other steps of the preparation method of the high-holding-force abrasive in this embodiment are the same as those in embodiment 1, and are not described herein again.
The high-holding-force abrasive prepared by the preparation method of the embodiment can be used for preparing a superhard material grinding wheel, and in the embodiment, the high-holding-force abrasive is used for preparing a chamfering grinding wheel, so that the service life of the superhard material chamfering grinding wheel is prolonged, the processing efficiency is improved, and the workpiece breakage is reduced. In other embodiments of the invention, the method can also be applied to the preparation of other superhard material grinding wheels such as smooth curved grinding wheels and hard alloy strong grooving grinding wheels.
Example 5, a high holding force abrasive, in the present example, relative to example 1, the parts by mass of the plated diamond abrasive and the filler were adjusted to: 50 parts of plating diamond grinding material, 40 parts of calcium oxide powder and 20 parts of magnesium oxide powder; adjusting the particle size of the plated diamond abrasive to 270/325; the plating metal for plating the diamond is nickel. The other compositions of the high-holding abrasive of this embodiment are the same as those of embodiment 1, and are not described herein again.
For the high-holding-force abrasive of this embodiment, as shown in fig. 1, the high-holding-force abrasive of this embodiment is prepared by using a method for preparing a high-holding-force abrasive, and the method for preparing a high-holding-force abrasive of this embodiment is the same as that of embodiment 1, and is not described herein again.
The high-holding-force abrasive prepared by the preparation method of the embodiment can be used for preparing a superhard material grinding wheel, and in the embodiment, the high-holding-force abrasive is used for preparing a chamfering grinding wheel, so that the service life of the superhard material chamfering grinding wheel is prolonged, the processing efficiency is improved, and the workpiece breakage is reduced. In other embodiments of the invention, the method can also be applied to the preparation of other superhard material grinding wheels such as smooth curved grinding wheels and hard alloy strong grooving grinding wheels.
It is worth pointing out that the filler of the invention not only does not need to have chemical reaction with the plating layer of the plating diamond abrasive material, but also does not have chemical reaction with the diamond, and the filler itself does not have chemical reaction at high temperature, has high melting point, and is easy to remove impurities, therefore, the invention selects the calcium oxide powder and the magnesium oxide powder as the filler, and the calcium oxide powder and the magnesium oxide powder not only meet the requirements for the filler, but also have low cost, are easy to obtain, and can meet the requirements of modern mass industrial production.
It should be noted that, in the method for manufacturing a high-retention abrasive according to the present invention, when the particle sizes of the calcium oxide powder, the magnesium oxide powder, and the plated diamond abrasive are adaptively adjusted according to the kind of the plated metal or the experimental requirement, the mesh number of the screen is also adaptively adjusted in step S4, and the correspondence relationship between the particle sizes of the plated diamond abrasive and the filler and the mesh number of the screen can be obtained by a technical manual.
It is worth mentioning that in order to further study the effect of the coating layer material of the diamond-coated abrasive on the high-holding-force abrasive prepared by the preparation method, the invention is provided with three comparative examples: comparative example 1 the preparation method of example 1 was compared, except that an untreated titanium-plated diamond abrasive was used; comparative example 2 relative to the preparation method of example 2, an untreated copper-plated diamond abrasive was used; comparative example 3 an untreated nickel plated diamond abrasive was used relative to the method of preparation of example 5.
Comparing the performance test between the superhard material chamfer grinding wheel prepared according to each embodiment and the superhard material chamfer grinding wheel prepared according to the matched comparative example, carrying out grinding test, and recording various data, wherein one is the performance test comparison condition of the superhard material chamfer grinding wheel made of the metal bond shown in FIG. 2 and respectively manufactured by using the abrasives prepared in the embodiments 1-4 and the comparative examples 1-2; the other is the performance detection comparison condition of the grinding wheel for detecting the abrasion ratio, which is manufactured by using the grinding materials prepared in the example 5 and the comparative example 3 respectively and is shown in figure 3, wherein the abrasion ratio is a quality index specially used for measuring the wear resistance of the synthetic diamond polycrystal.
The following table 1 is a comparison table of performance test conditions of the metal bond superhard material chamfer grinding wheels respectively manufactured by the abrasives prepared in the examples 1 to 4 and the abrasives prepared in the comparative examples 1 to 2; the following table 2 is a comparison table of performance tests of the grinding wheels for testing wear ratio, which were manufactured by the abrasives prepared in example 5 and comparative example 3, respectively.
TABLE 1 comparative table of performance test results of metallic bond superhard material chamfer grinding wheels respectively manufactured by the abrasives prepared in examples 1-4 and comparative examples 1-2
TABLE 2 comparison of the performance of grinding wheels for testing the wear ratio, produced from the abrasives prepared in example 5 and comparative example 3, respectively
In table 1 above, the service life of the grinding wheel is represented by the number of machinable pieces of the grinding wheel, and it can be seen from table 1 above that: 1. compared with the grinding wheel manufactured by the abrasive prepared by the untreated plating diamond abrasive in the comparative examples 1-2, the grinding wheel manufactured by the high-holding-force abrasive prepared by the plating diamond abrasive treated in the examples 1-4 of the invention has the advantages that the service life is obviously prolonged, the processing efficiency is obviously improved, and the size of a workpiece notch is obviously reduced, namely the high-holding-force abrasive prepared by the high-holding-force preparation method of the invention obviously improves the bonding force between the metal coated outside the abrasive and the surface of the diamond, and greatly improves the performance of the superhard material grinding wheel; 2. a transverse comparison of the properties between inventive examples 1 to 4, it can be clearly seen that, under the condition that the service life of the grinding wheel is not greatly different, the granularity of the filler and the plated diamond abrasive has direct influence on the time consumption for processing a single piece and the size of a workpiece notch, the larger the granularity is, the higher the processing efficiency is, the lower the time consumption for processing the single piece is, the larger the size of the workpiece notch is, and the time consumption for processing the single piece and the size of the workpiece notch are in a negative correlation corresponding relationship, that is, the worker needs to balance the time consumption of processing a single piece and the size of a workpiece opening according to the actual product requirement by adjusting the particle sizes of the filler and the plated diamond abrasive, if the time consumption of processing the single piece has the actual requirement, the smaller the workpiece opening size is, the better the workpiece opening size is, and if the actual requirement on the workpiece opening size is met, the shorter the time for machining a single workpiece is, the better the workpiece opening size is.
The higher the wear ratio, the better the wear resistance of the grinding wheel, the larger the number of workpieces that can be machined, as can be seen from table 2 above: the abrasion ratio of the grinding wheel manufactured by the grinding material prepared in the example 5 is obviously higher than that of the grinding wheel manufactured by the grinding material prepared in the comparative example 3, so that the wear resistance of the grinding wheel can be obviously improved by the high-holding-force grinding material prepared by the high-holding-force preparation method, namely the service life of the grinding wheel is obviously prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The high-holding-force grinding material is characterized by comprising a grinding material and a filler, wherein the grinding material is a plated diamond grinding material, and the filler comprises 10-50 parts by mass of calcium oxide powder and 10-60 parts by mass of magnesium oxide powder.
2. The high grip abrasive of claim 1, wherein the plating layer of the plated diamond abrasive is a metal plating layer, and the plating metal species of the metal plating layer comprises titanium, nickel, or copper.
3. The high holding force abrasive according to claim 1, wherein the calcium oxide powder and the magnesium oxide powder each have a particle size of 50 μm or less, and the coated diamond abrasive has a particle size of 20 to 400 μm.
4. A method for producing a high-holding-force abrasive according to claim 1, 2, or 3, comprising the steps of:
s1, respectively grinding the calcium oxide powder and the magnesium oxide powder, then placing the ground calcium oxide powder and the magnesium oxide powder into a resistance furnace for heating and heat preservation to obtain anhydrous calcium oxide powder and anhydrous magnesium oxide powder;
s2, grinding and mixing the anhydrous calcium oxide powder and the anhydrous magnesium oxide powder obtained in the step S1 with the diamond-coated abrasive to obtain a mixture;
s3, carrying out heat treatment on the mixture obtained in the step S2 in a nitrogen atmosphere, and cooling to room temperature after the heat treatment is finished to obtain a treated mixture;
s4, sieving the processed mixture obtained in the step S3 by using a screen to obtain a processed grinding material;
s5, washing the processed abrasive material obtained in the step S4 with dilute hydrochloric acid in a cold water bath to obtain an acid-washed abrasive material;
s6, filtering the acid-washed abrasive material obtained in the step S5, and washing the abrasive material with deionized water to obtain the water-washed abrasive material;
and S7, drying the washed abrasive obtained in the step S6 to obtain the abrasive with high holding power.
5. The method for preparing a high holding force abrasive material according to claim 4, wherein the calcium oxide powder and the magnesium oxide powder in the step S1 are heated at 600 ℃ for 15-30 min.
6. The method for preparing a high-holding-force abrasive material according to claim 4, wherein the temperature of the heat treatment of the mixed material in the step S3 is 700-1000 ℃, and the heat preservation time is 0.5-1h, wherein the temperature rise rate of the heat treatment of the mixed material is 50-100 ℃/h.
7. The method for preparing a high holding force abrasive material according to claim 4, wherein the number of the mesh in step S4 is 50-800 #; the concentration of the dilute hydrochloric acid in the step S5 is 1-5%.
8. The method for preparing a high-holding-force abrasive material according to claim 4, wherein the drying temperature of the abrasive material after the water washing in the step S7 is 40 to 60 ℃, and the drying time is 0.5 to 1 hour.
9. The application of the high-holding-force abrasive material obtained by the method for preparing the high-holding-force abrasive material according to claim 1 or 4 in the field of superhard material grinding wheels.
10. The use of a high holding power abrasive material according to claim 9 for the production of a grinding wheel of superhard material, including chamfer grinding wheels, smooth curved grinding wheels and hard carbide power grooving grinding wheels.
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| CN105058248A (en) * | 2015-08-04 | 2015-11-18 | 蓬莱市超硬复合材料有限公司 | Compound metal and ceramic bonding agent diamond grinding wheel |
| CN106625296A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | Diamond grinding wheel |
| CN108179448A (en) * | 2018-01-11 | 2018-06-19 | 河南工业大学 | It is a kind of to improve the plating diamond coat of metal and the method for diamond interface bond strength |
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2021
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058248A (en) * | 2015-08-04 | 2015-11-18 | 蓬莱市超硬复合材料有限公司 | Compound metal and ceramic bonding agent diamond grinding wheel |
| CN106625296A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | Diamond grinding wheel |
| CN108179448A (en) * | 2018-01-11 | 2018-06-19 | 河南工业大学 | It is a kind of to improve the plating diamond coat of metal and the method for diamond interface bond strength |
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Application publication date: 20210903 |