CN112936118A - Special grinding block for rock plate and production method thereof - Google Patents
Special grinding block for rock plate and production method thereof Download PDFInfo
- Publication number
- CN112936118A CN112936118A CN202110080258.7A CN202110080258A CN112936118A CN 112936118 A CN112936118 A CN 112936118A CN 202110080258 A CN202110080258 A CN 202110080258A CN 112936118 A CN112936118 A CN 112936118A
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- CN
- China
- Prior art keywords
- grinding block
- rock plate
- special grinding
- abrasive
- rock
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a special grinding block for a rock plate and a production method thereof, belonging to the field of grinding tools, wherein a binding agent in the special grinding block for the rock plate at least comprises powdery epoxy resin; the special grinding block for the rock plate comprises the following components in percentage by weight: 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of a filler; the production method comprises the following steps: step one, mixing materials according to a proportion and then uniformly mixing to obtain a uniform mixture; secondly, putting the uniform mixture into a steel die for leveling, putting the nylon hook cloth into the steel die, and putting the nylon hook cloth into a pressure head; thirdly, placing the steel die and the pressure head on an oil press for heating, sintering and molding; after sintering, the back surface of the work layer prepared after demoulding is bonded with the elastic glue and the plastic clamping seat. The invention has the beneficial effects that: the special grinding block for the rock plate produced by using the formula and the production method has the advantages of good sharpness, high processing efficiency, long service life, good luminosity and the like.
Description
Technical Field
The invention relates to the field of grinding tools, in particular to a special grinding block for a rock plate and a production method thereof.
Background
Ceramic rock plates are popular in the market in 2020, the rock plates are formed by firing at 1200 ℃ for 72 hours, the Mohs hardness exceeds 6 grade, and the ceramic rock plates are superior to stainless steel, have good wear resistance and high hardness, but the tool for polishing the rock plates is still an elastic grinding block for polishing glazed bricks, so that the following problems can be caused:
(1) the conventional size of the ceramic rock plate is 1000 × 3000mm, 1600 × 3200mm, 1500 × 3000mm and the like, which is much larger than the size of glazed tiles 600 × 600, 800 × 800, 600 × 1200 and the like, so that the requirements on the sharpness, the wear resistance and the luminosity of the elastic grinding block are higher, the elastic grinding block is completely consumed in a short time, the polishing missing phenomenon is easy to occur, the luminosity is low, and the luminosity uniformity is poor.
(2) The ceramic rock plate is sintered at a high temperature of more than 1200 ℃, which is much higher than 800 ℃ of the glazed tile, and the high-temperature sintering has the advantages of high density, high hardness and low water absorption, generally reaching below 0.02 percent, and the glazed tile is generally above 0.5 percent. Thus rock plate processing requires sharper tools and resilient abrasive blocks, although capable of processing, are very inefficient, at speeds below 10 meters per minute.
In view of the above, the present inventors have conducted extensive studies to solve the above problems, and have an object to provide a grinding block for rock plates, which is produced by the present invention.
Disclosure of Invention
Aiming at the problems that in the prior art, a rock plate grinding and polishing tool still uses an elastic grinding block for polishing glazed bricks, and the tool has poor sharpness and high consumption speed, is easy to miss polishing, and has low luminosity and poor luminosity uniformity, the invention provides the special grinding block for the rock plate, which has the characteristics of good sharpness, long service life, good luminosity and the like. The specific technical scheme is as follows:
the grinding block for rock plate has at least powdered epoxy resin as binding agent.
Preferably, the bonding agent at least comprises three components of melamine resin, powdered epoxy resin and jade powder.
Preferably, the binder comprises 40-50 wt% of melamine resin, 30-40 wt% of powdered epoxy resin and 20-30 wt% of urea-formaldehyde resin.
Preferably, the composition comprises the following components in percentage by weight: 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of a filler.
Preferably, the granularity of the diamond abrasive is in the range of 180# -8000 #.
Preferably, the diamond abrasive has a particle size in one of a range of 180# -8000 #.
Preferably, the filler comprises cerium oxide, calcium sulfate whiskers, aluminum oxide, and copper powder.
Preferably, the filler comprises, by weight, 10-15% of cerium oxide, 10-15% of calcium sulfate whisker, 10-15% of aluminum oxide and 30-35% of copper powder.
Preferably, the filler further comprises 30-40% by weight of other components.
Preferably, the other component in the filling is one of zinc oxide, talcum powder and calcium carbonate, or more than two of the components.
Preferably, the auxiliary abrasive includes silicon carbide and white corundum.
Preferably, the proportion of the silicon carbide in the auxiliary abrasive is 50-70% and the proportion of the white corundum in the auxiliary abrasive is 30-50% by weight percentage.
The invention also provides a production method of the special grinding block for the rock plate, which comprises the following steps:
uniformly mixing 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of filler in percentage by weight to obtain a uniform mixture;
secondly, putting the uniform mixture into a steel die for leveling, putting the nylon hook cloth into the steel die, and putting the nylon hook cloth into a pressure head;
and step three, placing the steel die and the pressure head on an oil press, and heating, sintering and molding.
Preferably, the heating temperature is 150-170 ℃ and the heat preservation time is 15-20 minutes during the sintering and forming in the third step.
Preferably, after sintering is completed, the back surface of the work layer manufactured after demolding is bonded with the elastic glue and the plastic clamping seat. Wherein the hardness of the elastic glue is 50-60 Shore hardness.
Preferably, the binder includes at least powdered epoxy.
Preferably, the bonding agent at least comprises three components of melamine resin, powdered epoxy resin and jade powder.
Preferably, the bonding agent comprises 40-50% of melamine resin, 30-40% of powdered epoxy resin and 20-30% of urea-formaldehyde resin by weight percentage.
Preferably, the granularity of the diamond abrasive is in the range of 180# -8000 #.
Preferably, the diamond abrasive has a particle size in one of a range of 180# -8000 #.
The technical scheme of the invention has the following beneficial effects:
powdered epoxy resin is added into the bonding agent. The abrasive grinding tool industry generally uses liquid epoxy resin, makes liquid epoxy resin into adhesive and uses, adopts the technology of pouring to make various products, but because liquid resin can produce a lot of gas when the compounding and the pouring technology does not use the hydraulic press hot pressing, the product life that leads to the pouring is shorter, this patent introduces likepowder epoxy resin, can make full use of its bond property good advantage, because can the hot press solidification during production again, the matrix combines closely, and the life-span improves and is showing. The practical use shows that the exposure height of the diamond of the product added with the powdery epoxy resin can be improved by more than 30 percent, and the falling rate of the diamond is reduced by more than 30 percent.
The existing elastic grinding block does not contain metal powder, mainly has coarse metal powder particles and strong friction force, and can easily grind the brick surface during grinding and polishing. The existing rock plate is high in hardness and is of a full-body structure, the sharpness can be greatly improved and scratches cannot be caused by using copper powder with low hardness through testing, and the scratches are still caused by using iron powder with a certain probability.
And thirdly, the hardness of the elastic rubber of the conventional elastic grinding block is generally 30-40 Shore hardness, and tests show that the sharpness effect is best when the hardness of the rubber is 50-60 Shore hardness, and the grinding and polishing efficiency is highest.
Tests show that the grinding block prepared by the method has the following advantages:
(1) the sharpness is good, the processing efficiency is high, and the processing speed can be improved to more than 15 meters per minute;
(2) long service life, 2 times of that of common elastic grinding block under the same processing condition
(3) The luminosity is good, the average luminosity can reach more than 80 degrees, and the luminosity uniformity is within +/-5 degrees.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
According to the embodiment, the formula and the proportion of the special grinding block for the rock plate are designed, and the grinding block is prepared by using the method disclosed by the invention, so that the obtained special grinding block for the rock plate has the advantages of good sharpness, long service life, good luminosity and the like. The specific technical scheme is as follows:
the grinding block for rock plate has at least powdered epoxy resin as binding agent.
As a preferred embodiment, the binder includes at least three components of melamine resin, powdered epoxy resin and jade powder. The melamine resin has higher chemical activity, higher bonding strength, high water resistance, high thermal stability and quick curing, is widely applied to the abrasive die industry, and has the advantage of good sharpness; the powdery epoxy resin has strong toughness, good caking property and good affinity with diamond after being cured, and can obviously improve the holding force of a matrix on the diamond when being used for an abrasive die; the chemical name of the jade powder is urea-formaldehyde resin, the jade powder has high hardness and good wear resistance, and has very good polishing performance when being used in the friction field.
As a preferred embodiment, the binder comprises 40 to 50 weight percent of melamine resin, 30 to 40 weight percent of powdered epoxy resin and 20 to 30 weight percent of urea resin.
As a preferred embodiment, the composition comprises the following components in percentage by weight: 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of a filler.
As a preferred embodiment, the diamond abrasive has a particle size ranging from 180# -8000 #. The diamond abrasive is extremely hard and can play a good grinding role.
As a preferred embodiment, the diamond abrasive has a grain size in one of the ranges of 180# -8000 #.
As a preferred embodiment, the filler includes cerium oxide, calcium sulfate whiskers, aluminum oxide, and copper powder. Wherein, the cerium oxide can obviously improve the upper luminosity; the calcium sulfate whiskers are beneficial to improving the bonding strength of the matrix and mainly improve the wear resistance of the product; the aluminum oxide can improve the wear resistance and gloss; copper powder is mainly used to improve the sharpness of the product.
In a preferable embodiment, the filler comprises, by weight, 10% to 15% of cerium oxide, 10% to 15% of calcium sulfate whiskers, 10% to 15% of aluminum oxide, and 30% to 35% of copper powder.
As a preferable embodiment, the filler further comprises 30-40% by weight of other components. Other components are mainly to improve product life and to reduce costs.
As a preferred embodiment, the other component in the filling is one of zinc oxide, talc and calcium carbonate, or two or more thereof.
As a preferred embodiment, the auxiliary abrasive includes silicon carbide and white corundum. The silicon carbide has high Mohs hardness and good self-sharpening property, and can improve the sharpness of the product; the white corundum mainly increases the wear resistance of the product.
In a preferred embodiment, the proportion of the silicon carbide in the auxiliary abrasive is 50 to 70 percent and the proportion of the white corundum in the auxiliary abrasive is 30 to 50 percent by weight.
The embodiment also provides a production method of the special grinding block for the rock plate, which comprises the following steps:
uniformly mixing 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of filler in percentage by weight to obtain a uniform mixture;
secondly, putting the uniform mixture into a steel die for leveling, putting the nylon hook cloth into the steel die, and putting the nylon hook cloth into a pressure head;
and step three, placing the steel die and the pressure head on an oil press, and heating, sintering and molding.
As a preferable embodiment, the heating temperature is 150-170 ℃ and the heat preservation time is 15-20 minutes during the sintering and forming in the third step.
In a preferred embodiment, after the sintering is completed, the back surface of the work layer formed after demolding is bonded with the elastic glue and the plastic clamping seat. Wherein the hardness of the elastic glue is 50-60 Shore hardness.
As a preferred embodiment, the binder comprises at least a powdered epoxy.
As a preferred embodiment, the binder includes at least three components of melamine resin, powdered epoxy resin and jade powder.
As a preferred embodiment, the binder comprises 40 to 50 weight percent of melamine resin, 30 to 40 weight percent of powdered epoxy resin and 20 to 30 weight percent of urea resin.
As a preferred embodiment, the diamond abrasive has a particle size ranging from 180# -8000 #.
As a preferred embodiment, the diamond abrasive has a grain size in one of the ranges of 180# -8000 #.
The hardness of elastic rubber of the existing elastic grinding block is generally 30-40 Shore hardness, and tests show that the sharpness effect is best when the hardness of the rubber is 50-60 Shore hardness, and the grinding and polishing efficiency is highest.
Through tests, the grinding block prepared by adopting the technical scheme of the embodiment has the following advantages:
(1) the sharpness is good, the processing efficiency is high, and the processing speed can be improved to more than 15 meters per minute;
(2) long service life, 2 times of that of common elastic grinding block under the same processing condition
(3) The luminosity is good, the average luminosity can reach more than 80 degrees, and the luminosity uniformity is within +/-5 degrees.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The special grinding block for the rock plate is characterized in that a bonding agent at least comprises powdery epoxy resin.
2. The special grinding block for rock plates as claimed in claim 1, wherein the binder comprises at least melamine resin, powdered epoxy resin and corundum powder.
3. The special grinding block for the rock plate as claimed in claim 2, wherein the bonding agent comprises 40-50% of melamine resin, 30-40% of powdered epoxy resin and 20-30% of urea resin by weight percentage.
4. The special grinding block for the rock plate as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 40-50% of a bonding agent, 10-15% of diamond abrasive, 10-15% of auxiliary abrasive and 25-35% of a filler.
5. The special grinding block for the rock plate as claimed in claim 4, wherein the granularity range of the diamond grinding material is 180# -8000 #.
6. The special grinding block for the rock plate as claimed in claim 5, wherein the granularity of the diamond abrasive is in the range of 180# -8000 #.
7. The rock plate specific abrasive block of claim 4, wherein the filler comprises cerium oxide, calcium sulfate whiskers, aluminum oxide, and copper powder.
8. The special grinding block for the rock plate as claimed in claim 7, wherein the filler comprises, by weight, 10-15% of cerium oxide, 10-15% of calcium sulfate whiskers, 10-15% of aluminum oxide and 30-35% of copper powder.
9. A rock plate specific abrasive block according to claim 7 or 8, wherein the filler further comprises 30-40% by weight of other components.
10. The special grinding block for rock boards as claimed in claim 9, wherein the other component in the filling is one or more of zinc oxide, talc powder and calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110080258.7A CN112936118B (en) | 2021-01-21 | 2021-01-21 | Special grinding block for rock plate and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110080258.7A CN112936118B (en) | 2021-01-21 | 2021-01-21 | Special grinding block for rock plate and production method thereof |
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| Publication Number | Publication Date |
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| CN112936118A true CN112936118A (en) | 2021-06-11 |
| CN112936118B CN112936118B (en) | 2022-07-05 |
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| CN202110080258.7A Active CN112936118B (en) | 2021-01-21 | 2021-01-21 | Special grinding block for rock plate and production method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2338512A1 (en) * | 1972-07-31 | 1974-02-21 | Hitachi Seiko Kk | METHOD OF MANUFACTURING A GRINDING WHEEL |
| EP1862286A1 (en) * | 2006-05-29 | 2007-12-05 | Marco Scalari | Rigid abrasive tool for facing and shaping stone-like or ceramic materials and associated manufacturing method |
| CN101200053A (en) * | 2006-12-13 | 2008-06-18 | 广东奔朗超硬材料制品有限公司 | Abrasive tool of epoxy resin combined with compounded abrasive |
| CN103624701A (en) * | 2013-11-28 | 2014-03-12 | 湖北天马研磨材料有限公司 | Method for manufacturing grinding wheel for polishing rail |
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| CN105729316A (en) * | 2016-02-25 | 2016-07-06 | 泉州众志新材料科技有限公司 | Artificial stone grinding plate and preparation method thereof |
| CN107127687A (en) * | 2017-06-08 | 2017-09-05 | 泉州众志新材料科技有限公司 | A kind of artificial stone resin Bradley material |
| CN109290967A (en) * | 2018-11-21 | 2019-02-01 | 厦门家和兴钻石工具有限公司 | A kind of long-life resinoid bond abrasive material and preparation method thereof |
| CN111823150A (en) * | 2019-04-23 | 2020-10-27 | 广东新劲刚金刚石工具有限公司 | Resin binder diamond grinding tool and preparation method thereof |
| CN112223134A (en) * | 2020-07-27 | 2021-01-15 | 广东奔朗新材料科技有限公司 | Manufacturing method of resin composite metal grinding wheel and resin composite metal grinding wheel |
-
2021
- 2021-01-21 CN CN202110080258.7A patent/CN112936118B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2338512A1 (en) * | 1972-07-31 | 1974-02-21 | Hitachi Seiko Kk | METHOD OF MANUFACTURING A GRINDING WHEEL |
| EP1862286A1 (en) * | 2006-05-29 | 2007-12-05 | Marco Scalari | Rigid abrasive tool for facing and shaping stone-like or ceramic materials and associated manufacturing method |
| CN101200053A (en) * | 2006-12-13 | 2008-06-18 | 广东奔朗超硬材料制品有限公司 | Abrasive tool of epoxy resin combined with compounded abrasive |
| CN103624701A (en) * | 2013-11-28 | 2014-03-12 | 湖北天马研磨材料有限公司 | Method for manufacturing grinding wheel for polishing rail |
| CN105252427A (en) * | 2015-09-18 | 2016-01-20 | 苏州国量量具科技有限公司 | Hard grinding wheel and preparation method thereof |
| CN105729316A (en) * | 2016-02-25 | 2016-07-06 | 泉州众志新材料科技有限公司 | Artificial stone grinding plate and preparation method thereof |
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| CN107127687A (en) * | 2017-06-08 | 2017-09-05 | 泉州众志新材料科技有限公司 | A kind of artificial stone resin Bradley material |
| CN109290967A (en) * | 2018-11-21 | 2019-02-01 | 厦门家和兴钻石工具有限公司 | A kind of long-life resinoid bond abrasive material and preparation method thereof |
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| CN112936118B (en) | 2022-07-05 |
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