CN108555783B - Preparation method of artificial stone chamfering wheel - Google Patents
Preparation method of artificial stone chamfering wheel Download PDFInfo
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- CN108555783B CN108555783B CN201810451489.2A CN201810451489A CN108555783B CN 108555783 B CN108555783 B CN 108555783B CN 201810451489 A CN201810451489 A CN 201810451489A CN 108555783 B CN108555783 B CN 108555783B
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- chamfering wheel
- artificial stone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
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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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- 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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- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a preparation method of an artificial stone chamfering wheel, which comprises the following steps of (1) mixing melamine formaldehyde resin and a filler according to the weight ratio of 20-40%: 25-45% of the raw materials are mixed; (2) then, the weight ratio of the components is 10-20%: adding 0-15% of silicon carbide and white corundum, and mixing to obtain a matrix binder; (3) then adding diamond particles in an amount of 10-20 wt% into the matrix binder, and fully stirring for more than 10 hours to prepare uniform mixed powder; (4) putting the uniformly mixed powder into a steel die, and leveling; then putting the nylon hook cloth into a steel mould, and finally putting into a pressure head; and putting the steel die and the pressure head on an oil press, and heating, sintering and molding. Compared with the prior art, the special chamfering wheel for stone-making grinding and polishing is greatly improved in use sharpness and service life, the sharpness and the service life are 2-3 times of those of the imported chamfering wheel, the glazing effect is good, the processing efficiency is obviously improved, and the practicability is high; the problem of repeated rework processing is solved.
Description
The application is entitled "a Chinese medicine preparation for curing diabetes and diabetes with the application number" 201610104234.X "and the application date of 2016.2.25
An artificial stone chamfering wheel and a preparation method thereof are proposed and applied by divisional application.
Technical Field
The invention relates to the field of grinding and polishing artificial stone grinding tools, in particular to a preparation method of a special chamfering wheel for artificial stones.
Background
The artificial stone is a kind of artificially synthesized decorative material, which is a kind of high molecular material polymer, and its components mainly include resin, aluminium powder, pigment and curing agent, so it is also called resin board artificial stone. The chamfering grinding and polishing needs to be carried out in the application of the artificial stone, the chamfering wheels used for processing the artificial stone at present are imported from foreign countries, no factory is available in China to produce the whole set of chamfering wheels, and tools adopted in the prior art are related grinding tools for grinding and polishing natural granite. In the actual use process, both the grinding tool and the imported chamfering wheel grinding tool have the following problems: poor sharpness, short service life, low processing efficiency, easy dyeing, poor glazing effect, low yield and high price. The problems of easy dyeing and poor light-applying effect are more critical.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a preparation method of an artificial stone chamfering wheel special for grinding and polishing artificial stones, which has the advantages of greatly improving the sharpness and service life, no dyeing, good polishing effect, high yield and remarkably improved processing efficiency.
In order to achieve the above purpose, the solution of the invention is:
an artificial stone chamfering wheel is formed by uniformly mixing diamond particles and a matrix bonding agent and performing hot press molding; the matrix binding agent is mainly prepared from the following components in parts by weight: 20-40% of melamine formaldehyde resin, 25-45% of filler, 10-20% of silicon carbide and 0-15% of white corundum.
The filler is mainly prepared by uniformly mixing cerium oxide, magnesium oxide, nylon powder and stannic oxide.
The weight ratio of the diamond particles is 10-20%.
The granularity of the diamond particles is 600-4000 meshes.
The artificial stone chamfering wheel further comprises a rubber cushion layer and an ABS matrix, the diamond particles and the matrix binding agent are hot-pressed into a working layer, and the rubber cushion layer is connected between the back of the working layer and the ABS matrix.
A preparation method of an artificial stone chamfering wheel comprises the following steps:
(1) the melamine formaldehyde resin and the filler account for 20-40% by weight: 25-45% of the raw materials are mixed; the filler is mainly prepared by uniformly mixing cerium oxide, magnesium oxide, nylon powder and stannic oxide;
(2) then, the weight ratio of the components is 10-20%: adding 0-15% of silicon carbide and white corundum, and mixing to obtain a matrix binder;
(3) then adding diamond particles in an amount of 10-20 wt% into the matrix binder, and fully stirring for more than 10 hours to prepare uniform mixed powder;
(4) putting the uniformly mixed powder into a steel die, and leveling; then putting the nylon hook cloth into a steel mould, and finally putting into a pressure head; and putting the steel die and the pressure head on an oil press, and heating, sintering and molding.
The heating temperature in the step (4) is 150 ℃ and 170 ℃, and the pressure is 100kg-200kg/cm2The heat preservation time is 20-25 minutes.
And (5) gluing the rubber cushion layer and the ABS matrix by using glue, and gluing the back surface of the working layer prepared by demoulding in the step (4) and the rubber cushion layer by using glue.
After the scheme is adopted, the artificial stone chamfering wheel and the preparation method thereof innovatively adopt the melamine formaldehyde resin which is pure white, is not dyed during grinding and polishing, has larger chemical activity, higher bonding strength, high thermal stability and stronger curing and bonding capacity, can well hold various fillers, and have the advantages of crisp matrix, particularly good sharpness during grinding and polishing, obviously improved sharpness performance and mechanical strength and greatly prolonged service life. The more critical is that granule type melamine formaldehyde resin can not influence the resin in the rostone during grinding, avoids not burning the board problem, and grinding quality is high, and the glazing is effectual, and machining efficiency is showing and is improving, and the yields is high, and the practicality is strong.
Drawings
FIG. 1 is a comparison graph of the effect of grinding and polishing the artificial stone by the artificial stone chamfering wheel of the invention and the traditional chamfering wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
The invention relates to an artificial stone chamfering wheel which is formed by uniformly mixing diamond particles and a matrix bonding agent and hot-pressing the mixture. The matrix binding agent is mainly prepared from the following components in parts by weight: 20-40% of melamine formaldehyde resin, 25-45% of filler, 10-20% of silicon carbide and 0-15% of white corundum.
The diamond is a main abrasive material and has the largest grinding effect, the weight ratio is 10-20%, the proportion of the diamond is slightly larger, and the whole body can achieve a better grinding effect. The grain size of the diamond particles is preferably 600-4000 meshes. In this case, the ratio of the diamond particles is preferably 18% by weight, and the particle size of the diamond particles may be selected according to actual requirements. The silicon carbide is irregular in shape, is relatively brittle, is quick in blade emergence during grinding and polishing, is used as an auxiliary diamond grinding material with the weight ratio of 10-20%, and can play a role in enhancing sharpness. The shape of the white corundum is more regular, and the wear resistance of the chamfering wheel can be increased by 0-15% of the weight ratio.
The artificial stone contains resin, and the colour is lighter, and present grinding apparatus all adopts phenolic resin as the binder, easily dyes during the grinding, and linear phenolic resin toughness is stronger moreover, and the sharpness is relatively poor, during the grinding with the artificial stone in the resin effect easily burn the board, influence grinding quality, present dark dull defect.
The matrix binder adopts the melamine formaldehyde resin as one of the most key technical points, and the melamine formaldehyde resin has the advantages of higher chemical activity, higher bonding strength, high thermal stability, stronger curing and bonding capacity, quick curing, no need of a curing agent and capability of well holding various fillers. Because the melamine formaldehyde resin has a brittle matrix and good sharpness during grinding and polishing, the weight ratio of the melamine formaldehyde resin in the invention is controlled to be 20-40%, so that the melamine formaldehyde resin can fully exert sharpness.
Furthermore, the melamine formaldehyde resin is pure white and is not dyed when being polished. Resin in the artificial stone can not be influenced during grinding of the granular melamine formaldehyde resin, so that the problem of plate burning can be well avoided, the grinding quality is high, the polishing effect is good, the processing efficiency is remarkably improved, the yield is high, and the practicability is high. The polishing effect is shown in the attached drawing 1, and two artificial stones which are subjected to chamfer grinding and polishing are shown in the drawing 1, wherein the artificial stone chamfer wheel grinding and polishing is adopted on the left side, so that the artificial stone chamfer polishing effect is particularly good; the right side is polished by a traditional chamfering wheel, and the artificial stone chamfering is dull and lusterless.
It should be noted here that the invention makes use of melamine formaldehyde resins, the combination with the other components and the weight ratio among the components being critical, the combination with the filler being particularly critical. The artificial stone chamfering wheel is mainly installed on a machine to carry out edge grinding and chamfering on artificial stone plates, and has high requirements on the sharpness, so that the weight ratio of the melamine formaldehyde resin is 20-40%, and the sharpness of the melamine formaldehyde resin can be fully exerted.
The filler can improve the curing effect of the matrix binder, further improve the mechanical strength and the service performance of the invention, the filler accounts for 25-45% of the matrix binder, so that the matrix strength of the product is higher, the particle cracking during grinding and polishing is avoided, and the wear resistance of the product is improved. Preferably, the filler is mainly prepared by uniformly mixing cerium oxide, magnesium oxide, nylon powder and tin dioxide. The filler, particularly the nylon powder component, plays an auxiliary role in the application of the melamine formaldehyde resin in the tire body binding agent, so that the melamine formaldehyde resin can be well applied to the artificial stone chamfering wheel, and the melamine formaldehyde resin can fully exert the characteristics of the artificial stone chamfering wheel, and the manufactured grinding disc fully exerts the comprehensive performances of sharpness, grinding force, glazing property and the like. In specific implementation, the weight ratio of the melamine formaldehyde resin, the silicon carbide, the white corundum, the cerium oxide, the magnesium oxide, the nylon powder and the tin dioxide can be 20-40%: 10-20%: 0-15%: 6.2%: 4.6%: 6.3%: 8.9 percent.
In conclusion, the special chamfering wheel for stone-making grinding and polishing can well replace an imported chamfering wheel, the sharpness and the service life of the special chamfering wheel are 2-3 times of those of the imported chamfering wheel, the glazing effect is good, the yield is high, the problem of repeated reworking treatment is solved, the production efficiency is improved by over 100%, and the use cost is greatly reduced.
Preferably, the artificial stone chamfering wheel further comprises a rubber cushion layer and an ABS substrate, the diamond particles and the matrix binder are hot-pressed to form a working layer, and the rubber cushion layer is connected between the back of the working layer and the ABS substrate.
The invention also relates to a preparation method of the artificial stone chamfering wheel, which comprises the following steps:
(1) the melamine formaldehyde resin and the filler account for 20-40% by weight: 25-45% of the raw materials are mixed; the materials can be prepared according to the weight ratio of 30 percent of melamine formaldehyde resin, 6.2 percent of cerium oxide, 4.6 percent of magnesium oxide, 6.3 percent of nylon powder and 8.9 percent of tin dioxide;
(2) then adding the mixture into the ingredients in the step (1) according to the weight ratio of 10-20%: adding 0-15% of silicon carbide and white corundum, and mixing to obtain a matrix binder; the silicon carbide can be added according to the weight ratio of 18 percent to 8 percent of white corundum;
(3) then adding diamond particles in an amount of 10-20 wt% into the matrix binder, and fully stirring for more than 10 hours to prepare uniform mixed powder; in this embodiment, it is desirable that the diamond particles are present in an amount of 18% by weight;
(4) putting the uniform mixed powder into a steel die, and leveling, specifically, putting the uniformly mixed powder of the diamond particles and the matrix binder obtained in the step (3) into the steel die according to a set weight according to the size of the die, and leveling; then putting the nylon hook cloth into a steel mould, and finally putting into a pressure head; and putting the steel die and the pressure head on an oil press, and heating, sintering and molding.
Preferably, the heating temperature in the step (4) is 150 ℃ to 170 ℃, and the pressure is 100kg to 200kg/cm2The heat preservation time is 20-25 minutes, and the heating temperature is 158 ℃ and the pressure is 180kg/cm in the actual sintering process2The time is 23 minutes, and the specific heating temperature, pressure and time can be adjusted and designed according to actual requirements.
Preferably, the rubber cushion layer and the ABS matrix are glued together by glue, the steel die obtained in the step (4) is placed on a stripper to be demoulded to form a working layer, and the back surface of the working layer and the rubber cushion layer are glued together by glue.
The artificial stone chamfering wheel has one-step formed middle hole, and can avoid product crack caused by punching the middle hole in the next process. The corners of the product are smooth, so that the table top of the artificial stone is prevented from being ground when a machine feeds the artificial stone. The middle rubber gasket with the thickness of 5mm is added, so that the vibration generated by mechanical pressure grinding is buffered, and the chamfering wheel and the artificial stone are prevented from cracking. The product has 10 particles, large particles, sufficient water drainage, and prevention of scratches caused by small particles and easy disintegration.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.
Claims (3)
1. The preparation method of the artificial stone chamfering wheel is characterized by comprising the following steps:
(1) the melamine formaldehyde resin and the filler account for 20-40% by weight: 25-45% of the raw materials are mixed; the filler is mainly prepared by uniformly mixing cerium oxide, magnesium oxide, nylon powder and stannic oxide;
(2) then, the weight ratio of the components is 10-20%: adding 0-15% of silicon carbide and white corundum, and mixing to obtain a matrix binder;
(3) then adding diamond particles in an amount of 10-20 wt% into the matrix binder, and fully stirring for more than 10 hours to prepare uniform mixed powder;
(4) putting the uniformly mixed powder into a steel die, and leveling; then putting the nylon hook cloth into a steel mould, and finally putting into a pressure head; and putting the steel die and the pressure head on an oil press, and heating, sintering and molding.
2. The method for preparing an artificial stone chamfering wheel according to claim 1, wherein the heating temperature in the step (4) is 150 ℃ and 170 ℃, and the pressure is 100kg/cm2-200kg/cm2The heat preservation time is 20-25 minutes.
3. The method for manufacturing an artificial stone chamfering wheel according to claim 1, further comprising the step (5) of gluing the rubber cushion layer and the ABS matrix with glue, and then gluing the back surface of the working layer formed by the step (4) and the demolding with glue to the rubber cushion layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810451489.2A CN108555783B (en) | 2016-02-25 | 2016-02-25 | Preparation method of artificial stone chamfering wheel |
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| CN201610104234.XA CN105666350B (en) | 2016-02-25 | 2016-02-25 | A kind of artificial stone chamfering wheel |
| CN201810451489.2A CN108555783B (en) | 2016-02-25 | 2016-02-25 | Preparation method of artificial stone chamfering wheel |
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| CN201610104234.XA Division CN105666350B (en) | 2016-02-25 | 2016-02-25 | A kind of artificial stone chamfering wheel |
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| CN108555783B true CN108555783B (en) | 2020-10-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106239381A (en) * | 2016-07-31 | 2016-12-21 | 谢跃民 | The formula of modified model grinding block |
| CN107020580A (en) * | 2017-06-08 | 2017-08-08 | 泉州众志新材料科技有限公司 | A kind of artificial stone honeycomb is ground material |
| CN112355921B (en) * | 2020-09-28 | 2022-10-21 | 惠安宇信金刚石工具有限公司 | Diamond metal bonding agent composite material part and manufacturing method and application thereof |
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| RU2169658C1 (en) * | 2000-10-24 | 2001-06-27 | Кондратенко Владимир Степанович | Compound for diamond tool |
| CN2902576Y (en) * | 2006-06-07 | 2007-05-23 | 广东奔朗超硬材料制品有限公司 | Edger wheel |
| CN100519082C (en) * | 2006-06-13 | 2009-07-29 | 广东奔朗超硬材料制品有限公司 | Edging wheel manufacturing method |
| CN1923463A (en) * | 2006-09-12 | 2007-03-07 | 德清县风火轮金刚石磨具厂 | Manufacturing technique of microcrystalline glass diamond edging wheel |
| CN201015845Y (en) * | 2006-12-28 | 2008-02-06 | 义乌市台荣超硬制品有限公司 | Metallic anchoring agent diamond chamfering wheel |
| CN100496897C (en) * | 2007-05-08 | 2009-06-10 | 广东奔朗超硬材料制品有限公司 | Edging wheel and fabricating technique |
| CN101570005A (en) * | 2009-05-26 | 2009-11-04 | 阳江市伟艺抛磨材料有限公司 | Nylon wheel and preparation method thereof |
| CN101941186B (en) * | 2010-09-15 | 2012-05-30 | 广东奔朗新材料股份有限公司 | Diamond chamfering polishing wheel for glass and preparation method thereof |
| CN102001054B (en) * | 2010-09-20 | 2012-05-02 | 广东奔朗新材料股份有限公司 | Resin-bonded diamond abrasive tool, method and mold for producing resin-bonded diamond abrasive tool |
| CN102591780B (en) * | 2012-01-13 | 2015-04-15 | 广州广电运通金融电子股份有限公司 | Device driver software test method and test system |
| JP5982971B2 (en) * | 2012-04-10 | 2016-08-31 | 住友電気工業株式会社 | Silicon carbide single crystal substrate |
| CN103537995B (en) * | 2013-09-27 | 2016-08-24 | 泉州众志新材料科技有限公司 | A kind of crystallite brick abrading block and production method thereof |
| AT515475B1 (en) * | 2014-02-28 | 2016-04-15 | Swarovski Tyrolit Schleif | Production of a cup wheel |
| CN104325416B (en) * | 2014-09-29 | 2016-08-31 | 福建易达纳米材料科技有限公司 | A kind of formula for making nylon abrading block and use the method that this formula makes nylon abrading block |
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| CN105666350B (en) | 2018-09-18 |
| CN108555783A (en) | 2018-09-21 |
| CN105666350A (en) | 2016-06-15 |
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