CN114211414B - Preparation method of superhard grinding wheel - Google Patents
Preparation method of superhard grinding wheel Download PDFInfo
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- CN114211414B CN114211414B CN202111516015.XA CN202111516015A CN114211414B CN 114211414 B CN114211414 B CN 114211414B CN 202111516015 A CN202111516015 A CN 202111516015A CN 114211414 B CN114211414 B CN 114211414B
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- grinding wheel
- superhard
- superhard grinding
- metal matrix
- abrasive block
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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
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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
- B24D18/0018—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by electrolytic deposition
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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
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
Abstract
The invention discloses a preparation method of a superhard grinding wheel, and belongs to the technical field of grinding tools. The method for connecting the superhard grinding wheel grinding material block and the metal substrate in the superhard grinding wheel preparation method comprises the following steps: cutting the superhard grinding wheel abrasive block into a tapered through hole along the radial direction; then the outer circle surface of the metal matrix is subjected to electrolytic treatment, and then the metal matrix is subjected to electroplating treatment; splicing and fixing the superhard grinding wheel abrasive block with the conical through hole on the outer circular surface of the metal matrix with the pre-plating layer to prepare the metal matrix fixed with the superhard grinding wheel abrasive block; and then the metal matrix fixed with the superhard grinding wheel abrasive block is used as a cathode and placed in an electroplating bath for electroplating treatment, so that the superhard grinding wheel abrasive block is fixed on the outer circular surface of the metal matrix, and the electroplated superhard grinding wheel is prepared. The connection method disclosed by the invention has the advantages that the deformation coefficients of the electroplated metal and the metal matrix are similar, and the connection stress is greatly reduced, so that the technical requirements of the bonding process are reduced, and the product yield is improved.
Description
Technical Field
The invention belongs to the technical field of grinding tools, and particularly relates to a preparation method of a superhard grinding wheel.
Background
The superhard grinding wheel is generally composed of a substrate and a working layer. The working layer is usually formed by splicing a plurality of superhard grinding wheel abrasive blocks, and the superhard grinding wheel abrasive blocks are spliced into an abrasive layer which is fixedly connected on the outer circumference or the end surface of the metal matrix through a bonding process. The superhard grinding wheel working layer abrasive block is generally prepared by mixing, pressing, drying, sintering and mechanically post-processing ingredients such as a binding agent, superhard abrasive and the like, wherein the superhard material grinding wheel abrasive block of the binding agent is filled with air holes which are communicated with each other. The grinding block of the superhard grinding wheel directly participates in grinding processing, so that the bonding strength between the grinding block and a grinding wheel base body has great influence on the service performance of the grinding wheel.
The bonding process of the grinding material layer of the superhard grinding wheel and the substrate has great influence on the service life and the safe use performance of the grinding wheel. In order to facilitate the implementation of the bonding process between the abrasive block and the grinding wheel matrix, the abrasive block is usually designed into an arc shape, the outer arc of the arc matches with the outer circle of the finished grinding wheel, and the inner arc matches with the outer circle of the grinding wheel matrix.
At present, the bonding of the grinding material layer of the superhard grinding wheel and a matrix is generally completed by manual operation, the grinding wheel matrix is firstly placed on a reference flat plate, then the grinding material blocks with the bonding surfaces coated with bonding agents are sequentially attached to the outer circumferential surface of the grinding wheel matrix, and pressing blocks which correspond to the grinding material blocks one by one are sequentially pressed under the action of bolts until the whole grinding material layer is spliced. The process for bonding the grinding material layer of the superhard grinding wheel with the substrate has the following problems: (1) the matching degree requirement of the pressing block and the grinding material block is high (matched with the diameter of the grinding wheel), so that the bonding fixture is high in pertinence and limited in universality; (2) the pressing force of the bolt on the grinding wheel block is mainly controlled manually, and the consistency of the force is poor, so that the bonding strength between the grinding wheel block and the matrix is different; (3) because each abrasive block is rigidly contacted and pressed by the bolt, and because the deformation rates of the grinding wheel matrix, the abrasive block and the adhesive are different, the bonding stress between the abrasive block and the grinding wheel matrix after solidification by a thermosetting process is large, and the abrasive block is easy to fall off under the action of the grinding force in the using process; (4) the traditional bonding process is complex to operate and low in production efficiency.
Therefore, how to reduce the connection stress between the superhard grinding wheel abrasive block and the metal matrix and improve the consolidation strength between the superhard grinding wheel abrasive block and the metal matrix is a problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a preparation method of a superhard grinding wheel, which solves the problem of low connection strength between a superhard grinding wheel abrasive block and a metal matrix in the prior art. According to the invention, the sintered superhard grinding wheel abrasive block is radially cut into a plurality of through holes by the laser cutting machine, and the through holes are utilized to realize the consolidation between the superhard grinding wheel abrasive block and the metal matrix by adopting an electroplating process.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for preparing a superhard grinding wheel comprises the following steps: and cutting the sintered superhard grinding wheel abrasive block into a conical through hole along the radial direction, and depositing anode metal ions in the plating solution on the outer circular surface of the metal matrix by using the conical through hole so as to enable the superhard grinding wheel abrasive block and the metal matrix to be consolidated together.
Preferably, the superhard grinding wheel grinding block is a ceramic bond superhard grinding wheel grinding block or a resin bond superhard grinding wheel grinding block.
The invention provides a preparation method of a superhard grinding wheel, which specifically comprises the following steps:
firstly, cutting a superhard grinding wheel abrasive block into a conical through hole along the radial direction, and uniformly distributing the superhard grinding wheel abrasive block on the arc surface of the superhard grinding wheel abrasive block to prepare the superhard grinding wheel abrasive block with the conical through hole;
placing the outer circle surface of the metal matrix as an anode in an electrolytic bath for electrolytic treatment, and then carrying out acid washing and cleaning on the metal matrix after electrolytic treatment;
thirdly, putting the metal matrix which is subjected to acid cleaning and cleaning in the second step as a cathode in an electroplating bath for electroplating treatment to prepare a metal matrix with a pre-plating layer;
uniformly splicing the superhard grinding wheel abrasive material block with the conical through hole prepared in the step (i) on the outer circular surface of the metal matrix with the pre-plating layer prepared in the step (iii) to prepare the metal matrix fixed with the superhard grinding wheel abrasive material block;
fifthly, placing the metal matrix fixed with the superhard grinding wheel abrasive block prepared in the step IV as a cathode in an electroplating bath for electroplating treatment again to fix the superhard grinding wheel abrasive block on the outer circular surface of the metal matrix to prepare the electroplated superhard grinding wheel;
sixthly, mechanically finishing the electroplated superhard grinding wheel in the fifth step to form a finished superhard grinding wheel product.
Preferably, in the first step, the tapered through holes are large outside and small inside, and the number of the tapered through holes is matched with the size of the superhard abrasive material block; the number of the conical through holes is 1-30, the taper of the conical through holes is 5-30 degrees, and the aperture of the conical through holes is 0.5-1 mm.
Preferably, in the step two, when the outer circumferential surface of the metal matrix is subjected to electrolytic treatment, other parts of the metal matrix are protected and covered by the non-conductive material.
Preferably, in the third step, the thickness of the metal substrate pre-plating layer is 0.005-0.1 mm.
Preferably, in the fifth step, the thickness of the plating layer of the electroplated superhard grinding wheel is not more than that of the superhard grinding wheel grinding block; the thickness of the plating layer of the electroplated superhard grinding wheel is 0.3-2 mm.
Preferably, in the fifth step, the specific process of the electroplating treatment is as follows: in a plating solution tank, a metal matrix fixed with an ultra-hard grinding wheel abrasive block is used as a cathode, direct current is introduced, anode metal is continuously electrolyzed, metal ions enter plating solution, anode metal ions in the plating solution penetrate through the conical through hole of the ultra-hard grinding wheel abrasive block and are continuously reduced and deposited on a pre-plating layer on the outer circular surface of the metal matrix to form an electroplated metal layer, the electroplated metal layer is continuously thickened along with the electroplating, and then the conical through hole of the ultra-hard grinding wheel abrasive block is filled until the thickness of the electroplated metal layer is matched with that of the abrasive block, so that the ultra-hard grinding wheel abrasive block is fixed on the outer circular surface of the metal matrix.
Preferably, the anode in the electroplating bath is metallic nickel or metallic titanium.
The invention also discloses a superhard grinding wheel which is prepared by the preparation method provided by the invention.
The invention has the beneficial effects that:
(1) the invention discloses a method for connecting a superhard grinding wheel grinding material block and a metal matrix, which effectively controls the bonding strength between the superhard grinding wheel grinding material block and the metal matrix by utilizing the structure and the distribution design of tapered through holes of the superhard grinding wheel grinding material block.
(2) The invention is connected with the superhard grinding wheel abrasive material block, the adhesive and the metal matrix in the traditional bonding process to be changed into the connection between the electroplating metal and the superhard grinding wheel abrasive material block, and because of the existence of the pre-plated metal layer and the similar deformation coefficient between the electroplating metal and the metal matrix, the connection stress is greatly reduced, thereby reducing the technical requirement of the bonding process and improving the yield of products.
(3) In the electroplating process, the anode metal ions in the electroplating solution are continuously reduced and deposited on the pre-plating layer on the outer circular surface of the metal substrate by utilizing the conical through holes, and are filled in the conical through holes of the grinding block of the superhard grinding wheel, and the electroplating metal also participates in grinding processing during grinding processing of the grinding wheel, so that the service life of the superhard grinding wheel is prolonged.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be derived from them by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of the structure of the superhard grinding wheel of the present invention (1-metal substrate, 2-superhard grinding wheel abrasive mass, 3-electroplated metal).
FIG. 2 is a schematic diagram of the internal structure of the bonded superhard grinding wheel abrasive block (1-superhard grinding wheel abrasive block, 2-conical through hole, 3-electroplated metal).
Detailed Description
For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention in conjunction with the examples, but it will be understood that the description is intended to illustrate the features and advantages of the invention further and is not intended to limit the invention to the claims.
All of the starting materials of the present invention, without particular limitation as to their source, may be purchased commercially or prepared according to conventional methods well known to those skilled in the art.
The test methods described in the following examples of the present invention are all carried out in a conventional manner unless otherwise specified.
The method for manufacturing a superhard grinding wheel according to the present invention will be described with reference to the following embodiments, but the scope of the present invention is not limited by the following embodiments.
Example 1
A method for preparing a superhard grinding wheel comprises the following steps: the sintered superhard grinding wheel abrasive block is radially cut into a conical through hole, anode metal ions in the plating solution are deposited on the outer circular surface of the metal matrix by using the conical through hole, so that the superhard grinding wheel abrasive block and the metal matrix are bonded together, and the schematic structural diagram of the inner part of the superhard grinding wheel abrasive block after the abrasive is bonded is shown in figure 2.
Wherein, the super-hard grinding wheel abrasive block is a ceramic bond super-hard grinding wheel abrasive block or a resin bond super-hard grinding wheel abrasive block.
Example 2
A preparation method of the superhard grinding wheel specifically comprises the following steps:
firstly, the superhard grinding wheel abrasive block is radially cut into a conical through hole, and the conical through hole is uniformly distributed on the arc surface of the superhard grinding wheel abrasive block to prepare the superhard grinding wheel abrasive block with the conical through hole.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
And thirdly, putting the metal matrix cleaned in the step II as a cathode in an electroplating bath for electroplating treatment to prepare the metal matrix with the pre-plating layer.
And fourthly, uniformly splicing the superhard grinding wheel grinding material block with the conical through hole obtained in the step III on the outer circular surface of the metal matrix with the pre-plating layer, and fixing to obtain the metal matrix fixed with the superhard grinding wheel grinding material block.
Fifthly, the metal matrix fixed with the superhard grinding wheel abrasive block prepared in the step IV is used as a cathode and is placed in an electroplating bath for electroplating treatment, so that the superhard grinding wheel abrasive block is fixed on the outer circular surface of the metal matrix, and the electroplated superhard grinding wheel is prepared.
Sixthly, mechanically finishing the electroplated superhard grinding wheel in the fifth step to form a finished superhard grinding wheel, wherein the structural schematic diagram of the superhard grinding wheel is shown in figure 1.
Example 3
A preparation method of the superhard grinding wheel specifically comprises the following steps:
firstly, the superhard grinding wheel abrasive block is radially cut into a conical through hole, and the conical through hole is uniformly distributed on the arc surface of the superhard grinding wheel abrasive block to prepare the superhard grinding wheel abrasive block with the conical through hole.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
Thirdly, the metal matrix cleaned in the second step is used as a cathode and is placed in an electroplating bath for electroplating treatment, and the metal matrix with the pre-plating layer is prepared.
And fourthly, uniformly splicing the superhard grinding wheel grinding material block with the conical through hole obtained in the step III on the outer circular surface of the metal matrix with the pre-plating layer, and fixing to obtain the metal matrix fixed with the superhard grinding wheel grinding material block.
Fifthly, the metal matrix fixed with the superhard grinding wheel abrasive block prepared in the step IV is used as a cathode and is placed in an electroplating bath for electroplating treatment, so that the superhard grinding wheel abrasive block is fixed on the outer circular surface of the metal matrix, and the electroplated superhard grinding wheel is prepared.
Sixthly, mechanically finishing the electroplated superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
The specific process of the electroplating treatment comprises the following steps: in a plating solution tank, metal nickel or titanium is used as an anode, a metal substrate fixed with a superhard grinding wheel abrasive block is used as a cathode, direct current is introduced, the metal nickel or titanium of the anode is continuously electrolyzed, metal nickel or titanium ions enter into plating solution, the anode metal nickel or titanium ions in the plating solution penetrate through the conical through hole of the ceramic bond and are continuously reduced and deposited on the pre-plating layer on the outer circular surface of the metal substrate to form an electroplated metal layer, the electroplated metal nickel or titanium layer is continuously thickened along with the electroplating, and then the conical through hole of the bond abrasive block is filled until the thickness of the electroplated metal layer is matched with that of the superhard grinding wheel abrasive block, so that the bond abrasive block is fixed on the outer circular surface of the metal substrate.
Example 4
The method for preparing the superhard grinding wheel takes the manufacture of a ceramic bond diamond grinding wheel with the model number of 300 x 10 x 37.5 x 5 (the outer diameter is 300mm, the inner hole is 37.5mm, the thickness is 10mm, the thickness of a working layer is 5mm, the width of the working layer is 10mm, and the chord length is 30 mm) as an example, and the specific steps are as follows.
A preparation method of a superhard grinding wheel specifically comprises the following steps:
firstly, cutting 20 conical through holes in the ceramic bond superhard grinding wheel grinding material block along the radial direction, wherein the minimum aperture of each through hole is 1mm, the taper is 15 degrees, and the through holes are uniformly distributed on the arc surface of the ceramic bond superhard grinding wheel grinding material block to prepare the ceramic bond superhard grinding wheel grinding material block with the conical through holes.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
Thirdly, the metal matrix cleaned in the second step is used as a cathode and is placed in an electroplating bath for nickel plating treatment, and the thickness of the pre-plated nickel layer of the metal matrix is 0.01 mm, so that the metal matrix with the pre-plated layer is prepared.
And fourthly, uniformly splicing the vitrified bond superhard grinding wheel abrasive block with the conical through hole obtained in the step III on the outer circular surface of the metal matrix with the pre-plating layer, and fixing the vitrified bond superhard grinding wheel abrasive block by using a plastic binding tape to obtain the metal matrix fixed with the vitrified bond superhard grinding wheel abrasive block.
Fifthly, putting the metal substrate fixed with the vitrified bond grinding block prepared in the step (iv) as a cathode in an electroplating bath for nickel plating treatment, wherein the nickel plating layer of the superhard grinding wheel is 2mm in thickness, and preparing the electroplated vitrified bond superhard grinding wheel.
Sixthly, mechanically finishing the electroplated ceramic bond superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
Example 5
The method for preparing the superhard grinding wheel takes the manufacture of a ceramic bond diamond grinding wheel with the model number of 320 x 15 x 37.5 x 6 (the outer diameter is 320mm, the inner hole is 37.5mm, the thickness is 15mm, the thickness of a working layer is 6mm, the width of the working layer is 15mm, and the chord length is 32 mm) as an example, and the specific steps are as follows.
A preparation method of a superhard grinding wheel specifically comprises the following steps:
firstly, cutting 15 conical through holes in the radial direction of the ceramic bond superhard grinding wheel grinding material block, wherein the minimum aperture of each through hole is 0.5mm, the taper is 20 degrees, and the through holes are uniformly distributed on the circular arc surface of the ceramic bond superhard grinding wheel grinding material block to prepare the ceramic bond superhard grinding wheel grinding material block with the conical through holes.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
And thirdly, putting the metal matrix cleaned in the second step as a cathode in an electroplating bath for nickel plating treatment, wherein the thickness of the nickel pre-plating layer of the metal matrix of the superhard grinding wheel is 0.005mm, and thus obtaining the metal matrix with the pre-plating layer.
Uniformly splicing the vitrified bond superhard grinding wheel abrasive block with the conical through hole prepared in the step (i) on the outer circular surface of the metal substrate with the pre-plating layer prepared in the step (iii), and fixing by using a plastic binding tape to prepare the superhard grinding wheel metal substrate fixed with the vitrified bond abrasive block.
Fifthly, putting the superhard grinding wheel metal matrix fixed with the vitrified bond grinding block prepared in the step IV as a cathode in an electroplating bath for nickel plating treatment, wherein the thickness of a nickel plating layer of the superhard grinding wheel is 1mm, and preparing the electroplated vitrified bond superhard grinding wheel.
Sixthly, mechanically finishing the electroplated ceramic bond superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
Example 6
The method for preparing the superhard grinding wheel takes the manufacturing of a resin bond diamond grinding wheel with the model number of 200 × 8 × 37.5 × 5 (the outer diameter is 200mm, the inner hole is 37.5mm, the thickness is 8mm, the thickness of a working layer is 5mm, the width of the working layer is 8mm, and the chord length is 30 mm) as an example, and the specific steps are as follows.
A preparation method of a superhard grinding wheel specifically comprises the following steps:
cutting 10 conical through holes along the radial direction of the resin bond superhard grinding wheel abrasive block, wherein the minimum aperture of each through hole is 0.5mm, the taper of each through hole is 30 degrees, and the through holes are uniformly distributed on the arc surface of the resin bond superhard grinding wheel abrasive block to prepare the ceramic bond superhard grinding wheel abrasive block with the conical through holes.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
Thirdly, the metal matrix cleaned in the second step is used as a cathode and is placed in an electroplating bath for titanizing treatment, and the thickness of the pre-titanizing layer of the metal matrix is 0.05mm, so that the metal matrix with the pre-plating layer is prepared.
And fourthly, uniformly splicing the resin bond superhard grinding wheel abrasive block with the conical through hole, which is prepared in the step III, on the outer circular surface of the metal matrix with the pre-plating layer, and fixing the metal matrix with the abrasive block by using a plastic binding tape.
Fifthly, placing the metal substrate fixed with the resin bond abrasive material block prepared in the step IV as a cathode in an electroplating bath for titanizing treatment, wherein the thickness of the titanizing layer of the superhard grinding wheel is 2mm, and preparing the electroplated resin bond superhard grinding wheel.
Sixthly, mechanically finishing the resin bond superhard grinding wheel electroplated in the fifth step to form a superhard grinding wheel finished product.
Example 7
The present example takes the manufacture of a ceramic bond diamond grinding wheel with the model number of 250 × 10 × 37.5 × 8 (the outer diameter is 250mm, the inner hole is 37.5mm, the thickness is 10mm, the thickness of the working layer is 8mm, the width of the working layer is 10mm, and the chord length is 24 mm) as an example, and the specific steps are as follows.
A preparation method of a superhard grinding wheel specifically comprises the following steps:
firstly, 25 conical through holes are radially cut on the vitrified bond superhard grinding wheel abrasive block, the minimum aperture of each through hole is 1mm, the taper is 10 degrees, and the vitrified bond superhard grinding wheel abrasive block with the conical through holes is uniformly distributed on the circular arc surface of the vitrified bond superhard grinding wheel abrasive block.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
And thirdly, placing the metal matrix cleaned in the second step as a cathode in an electroplating bath for titanium plating treatment, wherein the thickness of the pre-plated titanium layer of the metal matrix is 0.1mm, and thus obtaining the metal matrix with the pre-plated layer.
And fourthly, uniformly splicing the ceramic bond superhard grinding wheel abrasive block with the conical through hole, which is prepared in the step III, on the outer circular surface of the metal matrix with the pre-plating layer, and fixing the metal matrix with the abrasive block by using a plastic binding tape.
Fifthly, the metal substrate fixed with the vitrified bond grinding block prepared in the step IV is used as a cathode and is placed in an electroplating bath for titanizing treatment, and the thickness of the titanizing layer of the superhard grinding wheel is 1.5mm, so that the electroplated vitrified bond superhard grinding wheel is prepared.
Sixthly, mechanically finishing the electroplated ceramic bond superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
Example 8
The method for preparing the superhard grinding wheel takes the manufacture of a ceramic bond diamond grinding wheel with the model number of 400 x 12 x 37.5 x 5 (the outer diameter is 400mm, the inner hole is 37.5mm, the thickness is 12mm, the thickness of a working layer is 5mm, the width of the working layer is 12mm, and the chord length is 30 mm) as an example, and comprises the following specific steps.
A preparation method of a superhard grinding wheel specifically comprises the following steps:
firstly, 30 conical through holes are radially cut in the vitrified bond superhard grinding wheel abrasive block, the minimum aperture of each through hole is 0.5mm, the taper is 5 degrees, and the vitrified bond superhard grinding wheel abrasive block with the conical through holes is uniformly distributed on the circular arc surface of the vitrified bond superhard grinding wheel abrasive block.
Secondly, the outer circle surface of the metal matrix is used as an anode and is placed in an electrolytic bath for electrolytic treatment, and then the metal matrix after electrolytic treatment is subjected to acid cleaning and cleaning.
Thirdly, the metal matrix cleaned in the second step is used as a cathode and is placed in an electroplating bath for nickel plating treatment, and the thickness of the pre-plated nickel layer of the metal matrix is 0.1mm, so that the metal matrix with the pre-plated layer is prepared.
And fourthly, uniformly splicing the ceramic bond superhard grinding wheel abrasive block with the conical through hole, which is prepared in the step III, on the outer circular surface of the metal matrix with the pre-plating layer, and fixing the metal matrix with the abrasive block by using a plastic binding tape.
Fifthly, putting the metal substrate fixed with the vitrified bond grinding block prepared in the step IV as a cathode in an electroplating bath for nickel plating treatment, wherein the thickness of a nickel plating layer of the superhard grinding wheel is 2mm, and preparing the electroplated vitrified bond superhard grinding wheel.
Sixthly, mechanically finishing the electroplated ceramic bond superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
The method for manufacturing the superhard grinding wheel provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A method for preparing a superhard grinding wheel is characterized by comprising the following steps: the method for connecting the superhard grinding wheel abrasive block and the metal matrix in the superhard grinding wheel preparation method comprises the following steps: and cutting the sintered superhard grinding wheel abrasive block into a conical through hole along the radial direction, and depositing anode metal ions in the plating solution on the outer circular surface of the metal matrix by using the conical through hole so as to bond the superhard grinding wheel abrasive block and the metal matrix together.
2. A method of making a superhard grinding wheel according to claim 1, characterised in that: the ultra-hard grinding wheel abrasive block is a ceramic bond ultra-hard grinding wheel abrasive block or a resin bond ultra-hard grinding wheel abrasive block.
3. The method for manufacturing a superhard grinding wheel according to claim 1, comprising the following steps:
firstly, cutting a superhard grinding wheel abrasive block into a conical through hole along the radial direction, and uniformly distributing the abrasive block on the arc surface of the superhard grinding wheel abrasive block to obtain the superhard grinding wheel abrasive block with the conical through hole;
placing the outer circle surface of the metal matrix as an anode in an electrolytic bath for electrolytic treatment, and then carrying out acid washing and cleaning on the metal matrix after electrolytic treatment;
thirdly, putting the metal matrix which is subjected to acid cleaning and cleaning in the second step as a cathode in an electroplating bath for electroplating treatment to prepare a metal matrix with a pre-plating layer;
uniformly splicing the superhard grinding wheel grinding material block with the conical through hole prepared in the step (i) on the outer circular surface of the metal matrix with the pre-plating layer prepared in the step (iii) to prepare the metal matrix fixed with the superhard grinding wheel grinding material block;
fifthly, placing the metal matrix fixed with the superhard grinding wheel abrasive block prepared in the step IV as a cathode in an electroplating bath for electroplating treatment again to fix the superhard grinding wheel abrasive block on the outer circular surface of the metal matrix to prepare the electroplated superhard grinding wheel;
sixthly, mechanically finishing the electroplated superhard grinding wheel in the fifth step to form a superhard grinding wheel finished product.
4. A method of making a superhard grinding wheel according to claim 3, wherein: in the first step, the tapered through holes are large outside and small inside, and the number of the tapered through holes is matched with the size of the superhard abrasive material block; the number of the conical through holes is 1-30, the taper of the conical through holes is 5-30 degrees, and the aperture of the conical through holes is 0.5-1 mm.
5. A method of making a superhard grinding wheel according to claim 3, wherein: in the second step, when the outer circular surface of the metal matrix is subjected to electrolytic treatment, other parts of the metal matrix are protected and covered by non-conductive materials.
6. A method of making a superhard grinding wheel according to claim 3, wherein: in the third step, the thickness of the pre-plating layer of the metal matrix is 0.005-0.1 mm.
7. A method of making a superhard grinding wheel according to claim 3, characterised in that: in the fifth step, the thickness of the plating layer of the electroplated superhard grinding wheel is not more than that of the grinding material block of the superhard grinding wheel; the thickness of the plating layer of the electroplated superhard grinding wheel is 0.3-2 mm.
8. A method of making a superhard grinding wheel according to claim 3, wherein: in the fifth step, the specific process of the electroplating treatment comprises the following steps: in a plating solution tank, a metal matrix fixed with an ultra-hard grinding wheel abrasive block is used as a cathode, direct current is introduced, anode metal is continuously electrolyzed, metal ions enter plating solution, anode metal ions in the plating solution penetrate through the conical through hole of the ultra-hard grinding wheel abrasive block and are continuously reduced and deposited on a pre-plating layer on the outer circular surface of the metal matrix to form an electroplated metal layer, the electroplated metal layer is continuously thickened along with the electroplating, and then the conical through hole of the ultra-hard grinding wheel abrasive block is filled until the thickness of the electroplated metal layer is matched with that of the abrasive block, so that the ultra-hard grinding wheel abrasive block is fixed on the outer circular surface of the metal matrix.
9. A method of manufacturing a superhard grinding wheel according to claim 3 or 6 or 7 or 8, wherein: the anode in the electroplating bath is metallic nickel or metallic titanium.
10. A superhard grinding wheel is characterized in that: the method of manufacturing a superhard grinding wheel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111516015.XA CN114211414B (en) | 2021-12-13 | 2021-12-13 | Preparation method of superhard grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111516015.XA CN114211414B (en) | 2021-12-13 | 2021-12-13 | Preparation method of superhard grinding wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114211414A CN114211414A (en) | 2022-03-22 |
| CN114211414B true CN114211414B (en) | 2022-09-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2368652Y (en) * | 1999-05-13 | 2000-03-15 | 陈礼成 | Core of polishing wheel |
| RU2228832C1 (en) * | 2002-09-27 | 2004-05-20 | Институт технологических наук и проблем реструктурирования в промышленности | Abrasive tool for surface grinding |
| US8920079B2 (en) * | 2008-03-31 | 2014-12-30 | National Institute Of Advanced Industrial Science And Technology | Joined product |
| CN202037551U (en) * | 2011-03-28 | 2011-11-16 | 山东大学 | Combined grinding wheel device with replaceable outer edge |
| CN102350668B (en) * | 2011-10-19 | 2015-10-07 | 杭州祥生砂光机制造有限公司 | A kind of flash trimmer special throwing CD and preparation method |
| CN105033874B (en) * | 2015-06-10 | 2017-05-24 | 宁波大学 | Manufacturing method for electroplated diamond grinding wheel easy to disassemble |
| CN105818008B (en) * | 2016-03-23 | 2018-01-12 | 北京航空航天大学 | A kind of preparation method of the complicated bus polishing wheel with local enhancement structure |
| CN105856088B (en) * | 2016-05-27 | 2019-01-25 | 华侨大学 | A kind of preparation facilities and its method of abrasive grain three-dimensional controllable arrangement grinding tool |
| CN208300127U (en) * | 2018-06-12 | 2018-12-28 | 深圳市爱升精密电路科技有限公司 | A kind of unmanned plane buries the region between the heart and the diaphragm hole power supply pcb board |
| CN108857940B (en) * | 2018-07-19 | 2021-05-07 | 河南工业大学 | Single-layer high-precision brazing superhard abrasive grinding wheel and manufacturing method thereof |
| CN113732969B (en) * | 2021-08-27 | 2022-07-12 | 郑州磨料磨具磨削研究所有限公司 | Diamond grinding wheel and manufacturing method thereof |
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