CN107199521B - Process for manufacturing grinding block by using waste materials - Google Patents
Process for manufacturing grinding block by using waste materials Download PDFInfo
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- CN107199521B CN107199521B CN201710480336.6A CN201710480336A CN107199521B CN 107199521 B CN107199521 B CN 107199521B CN 201710480336 A CN201710480336 A CN 201710480336A CN 107199521 B CN107199521 B CN 107199521B
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- abrasive particles
- grinding
- diamonds
- resin
- grinding 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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
Abstract
The invention relates to a process for manufacturing a grinding block by utilizing waste materials, which comprises the following steps: a. selecting waste materials containing fibers and first abrasive particles, wherein the waste materials are leftover materials generated in the process of manufacturing a grinding disc or leftover materials generated in the process of cutting a grinding wheel; b. b, blanking or crushing the waste material obtained in the step a to obtain a reclaimed material; c. cold-pressing the reclaimed material obtained in the step b into a rough blank with a shape corresponding to the grinding block to be produced; d. and c, placing the rough blank obtained in the step c in a cavity of a forming die, pouring a pouring liquid containing resin and second abrasive particles into the cavity, and forming the grinding block. By adopting the technical scheme of the invention, the leftover materials in the manufacturing process of the grinding disc and the grinding wheel are used as the base body of the grinding block, so that the material cost of the grinding block is greatly reduced, the recycling of waste materials is realized, the subsequent treatment of the reduced waste materials is realized, the waste materials are changed into valuable, the advantages of energy saving, consumption reduction and environmental protection are achieved, and meanwhile, the grinding block processed by the method has the advantages of good heat dissipation and good grinding effect.
Description
Technical Field
The invention relates to a process for manufacturing a grinding block by utilizing waste materials.
Background
The diamond grinding wheel is a consolidation grinding tool obtained by consolidating and forming diamond, a bonding agent and a filler, has higher hardness and strength, and introduces a molding process of a resin grinding wheel in Chinese utility model patent with the name of 'resin cutting grinding wheel', for example, the application number of CN200720069379.7, and the molding process comprises the following steps: preparing a grinding wheel forming die with the diameter of 1600mm, the thickness of 17mm and the diameter of a central hole of 152 mm; b, fully and uniformly mixing the organic resin, the short glass fiber yarns and the filler in a mixing pot; c, adding the mixture prepared in the step b, abrasive particles and wetting agents, and continuously and fully mixing the mixture in a mixing pot to obtain a molding material; d, spreading a piece of paper at the bottom of the grinding wheel forming die, spreading a piece of mesh cloth woven by glass fibers and having the diameter of 2/3 of the grinding wheel, filling molding materials with the required total amount of 1/4, putting a piece of glass fiber mesh cloth with the diameter equal to that of the grinding wheel, continuously filling the molding materials with the required total amount of 1/4, repeating the steps until the die is filled, and spreading a piece of glass fiber mesh cloth with the diameter of 2/3 of the grinding wheel and paper on the uppermost layer, so as to obtain the resin cutting grinding wheel molding materials with five layers of glass fiber mesh cloth uniformly distributed; e, closing the die, placing the die in a 3000-ton large press with a hot pressing device, and performing high-temperature and high-pressure press forming under the conditions that the temperature is 170 ℃ and the pressure is 1350MPa to obtain the resin cutting grinding wheel.
The application number 201410512382.6 entitled "a formulation for making nylon grinding block and method for making nylon grinding block using the formulation" patent application discloses a method for making nylon grinding block, firstly, putting massive phenolic resin, massive polyimide and crystal urotropine into a ball mill, ball milling the three into powder mixture, then sending the mixture after ball milling into a mixing roll for mixing, the mixing temperature is 80-100 ℃, the time is 15-30 minutes, forming modified phenolic resin, secondly, mixing diamond, silicon carbide, imidazole, zinc oxide, cerium oxide and modified phenolic resin, adding into liquid epoxy resin after mixing, stirring at high speed to fully mix the components to form a soaking liquid for standby; material selection and soaking: forming and punching nylon fibers to form a plurality of nylon fiber sheets matched with the nylon grinding block, soaking the nylon fiber sheets into the soaking solution obtained in the step (1), and taking out after the nylon fiber sheets are fully wetted; then, pressing and curing are carried out.
The grinding wheel is added with resin and fiber materials, so that the grinding block has certain elasticity and can better contact a product to be processed. The grinding wheel has two processing modes, one mode is that a wheel body with a preset size is directly formed by die pressing through a die, and the processing efficiency is low; the other method is to form a large material block and then form a plurality of small grinding wheels by punching and cutting, the machining efficiency is high, the method is a common method in the prior production, however, leftover materials are easy to generate by the method, and the leftover materials are generally directly discarded, so that waste is caused.
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 process for manufacturing an abrasive block, which can save cost and realize resource recycling, and the abrasive block manufactured by the process has the advantages of good grinding and polishing effect and long service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
a process for making abrasive blocks from waste material comprising the steps of:
a. selecting waste materials containing fibers and first abrasive particles, wherein the waste materials are leftover materials generated in the process of manufacturing a grinding disc or leftover materials generated in the process of cutting a grinding wheel;
b. b, blanking or crushing the waste material obtained in the step a to obtain a reclaimed material;
c. cold-pressing the reclaimed material obtained in the step b into a rough blank with a shape corresponding to the grinding block to be produced;
d. and c, placing the rough blank obtained in the step c in a cavity of a forming die, pouring a pouring liquid containing resin and second abrasive particles into the cavity, and forming the grinding block.
In a preferred embodiment of the present invention, the first abrasive grains are diamonds and/or diamonds, the second abrasive grains are diamonds and/or diamonds, and the mesh number of the first abrasive grains is the same as that of the second abrasive grains.
In another preferred embodiment of the present invention, the first abrasive grains are diamonds and/or diamonds, the second abrasive grains are diamonds and/or diamonds, and the mesh number of the first abrasive grains is larger than that of the second abrasive grains.
In a preferred mode of the invention, the cold pressing is carried out by a cold press in the step c, and 10g to 20g of the leftover materials are pressed into 16 same rough blanks.
In a preferred embodiment of the present invention, the casting liquid in step d includes the resin, methyl ethyl ketone peroxide, 191-resin accelerator, and the second abrasive grains, the resin is a 191-unsaturated resin, and the weight ratio of the 191-unsaturated resin: methyl ethyl ketone peroxide: 191 the resin accelerator was 100:3:3, the second abrasive grains included diamond, silicon carbide, and cerium oxide, the weight ratio of diamond, silicon carbide, and cerium oxide was 1:1:8,100 kg of the casting solution, and the weight of the second abrasive grains added was 50 kg.
In a preferred embodiment of the present invention, in the step d, the molding time is 24 hours and the molding temperature is room temperature.
In a preferred embodiment of the present invention, the 191 resin accelerator is obtained from Xiangyang Qiangfeng chemical industry Co., Ltd, and the 191 unsaturated resin is obtained from Jinyuangteng commercial Co., Ltd, Beijing.
By adopting the technical scheme of the invention, the leftover materials in the manufacturing process of the grinding disc and the grinding wheel are used as the base body of the grinding block, so that the material cost of the grinding block is greatly reduced, the recycling of waste materials is realized, the subsequent treatment of the reduced waste materials is realized, the waste materials are changed into valuable things, the energy is saved, the consumption is reduced, and the environment is protected.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of the abrasive block of the present invention;
FIG. 3 is a schematic view of one of the structures of the scrap according to the present invention;
FIG. 4 is a schematic view of a casting process according to the present invention;
in the figure:
10-grinding block 20-leftover material
30-grinding wheel 40-rough blank
50-Forming die
Detailed Description
In order to further explain the technical scheme of the invention, the following detailed description is combined with the accompanying drawings.
Referring to fig. 1 to 4, a process for manufacturing a grinding block 10 using waste materials includes the steps of:
a. selecting waste materials containing fibers and first abrasive particles, wherein the waste materials are leftover materials generated in the process of manufacturing grinding discs or leftover materials generated in the process of cutting grinding wheels, such as leftover materials generated by grinding wheels in the cutting application number of 98113101.8; referring to fig. 3, in the grinding wheel cutting process, after the plurality of grinding wheels 30 are cut from the whole rectangular grinding wheel material, leftover materials are remained.
b. And c, sorting the leftover materials in the step a, directly blanking the leftover materials with relatively large volume to form a block body with the shape similar to that of the grinding block 10 to be formed, crushing the leftover materials with relatively small volume by a crushing frame, and calling the leftover materials obtained by blanking or crushing as reclaimed materials.
c. And (c) cold-pressing the reclaimed material obtained in the step (b) into a rough blank 40 with a shape corresponding to the grinding block 10 to be produced, and particularly, cold-pressing by using a cold press, wherein the pressed rough blank 40 has the same shape as a cavity of a forming die 50 to be described below, and the volume of the pressed rough blank 40 is slightly smaller than that of the rough blank 40.
d. And c, placing the rough blank 40 obtained in the step c in a cavity of a forming die 50, pouring a pouring liquid containing resin and second abrasive particles into the cavity and forming the grinding block 10, enabling the pouring liquid to penetrate into the rough blank 40 and be cured and formed, and then forming the finished grinding block 10 through demoulding.
In a preferred embodiment of the present invention, the first abrasive grains are diamonds and/or diamonds, the second abrasive grains are diamonds and/or diamonds, and the mesh number of the first abrasive grains and the mesh number of the second abrasive grains are the same.
In another preferred embodiment of the present invention, the first abrasive grains are diamonds and/or diamonds, the second abrasive grains are diamonds and/or diamonds, and the mesh number of the first abrasive grains is larger than that of the second abrasive grains.
In the present invention, the mesh number of the first abrasive grain and the second abrasive grain can be selected in the national standard of diamond abrasive block.
As a preferred mode of the present invention, in step c, a cold press is used for cold pressing, 10g to 20g of the leftover materials are pressed into 16 identical rough blanks 40, in the embodiment, the volume of each rough blank is 20.5 cubic centimeters, the shape of each rough blank is a cylinder with an isosceles trapezoid cross section, the upper bottom of the isosceles trapezoid is 2cm, the lower bottom of the isosceles trapezoid is 3.3cm, the height of the isosceles trapezoid is 4.3cm, the height of the cylinder is 1.8cm, and the total pressure of the cold press is 20 tons.
In a preferred embodiment of the present invention, the casting liquid in step d includes the resin, methyl ethyl ketone peroxide, 191-resin accelerator, and the second abrasive grains, the resin is a 191-unsaturated resin, and the weight ratio of the 191-unsaturated resin: methyl ethyl ketone peroxide: 191 the resin accelerator was 100:3:3, the second abrasive grains included diamond, silicon carbide, and cerium oxide, the weight ratio of diamond, silicon carbide, and cerium oxide was 1:1:8,100 kg of the casting solution, and the weight of the second abrasive grains added was 50 kg. Wherein, 191 the resin accelerator plays a role of accelerating resin foaming, and the methyl ethyl ketone peroxide plays a role of curing agent. In a preferred embodiment of the present invention, in step d, the molding time is 24 hours, and the molding temperature is room temperature, for example, 25 ℃. And after the pouring liquid is poured and naturally placed for 24 hours, demolding, and taking out the sample.
In the embodiment of the invention, the 191 resin accelerator can be obtained from Xiangyang Qiangfeng chemical industry Co., Ltd, and the 191 unsaturated resin is obtained from Jinyuatang commercial Co., Ltd, Beijing.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
Claims (4)
1. A process for manufacturing abrasive blocks by using waste materials is characterized by comprising the following steps:
a. selecting waste materials containing fibers and first abrasive particles, wherein the waste materials are leftover materials generated in the process of manufacturing a grinding disc or leftover materials generated in the process of cutting a grinding wheel;
b. b, blanking or crushing the waste material obtained in the step a to obtain a reclaimed material;
c. cold-pressing the reclaimed material obtained in the step b into a rough blank with a shape corresponding to the grinding block to be produced; c, cold pressing by using a cold press, and pressing 10g-20g of the leftover materials into 16 same rough blanks; the rough blank is a cylinder with an isosceles trapezoid cross section, the upper bottom of the isosceles trapezoid is 2cm, the lower bottom of the isosceles trapezoid is 3.3cm, the height of the isosceles trapezoid is 4.3cm, and the height of the cylinder is 1.8 cm;
d. c, placing the rough blank obtained in the step c in a cavity of a forming mold, pouring a pouring liquid containing resin and second abrasive particles into the cavity, and forming a grinding block; the casting liquid in the step d comprises the resin, methyl ethyl ketone peroxide, 191 resin accelerator and the second abrasive particles, wherein the resin is 191 unsaturated resin, and the weight ratio of the 191 unsaturated resin: methyl ethyl ketone peroxide: 191 resin accelerator =100:3:3, the second abrasive grains comprise diamond, silicon carbide and cerium oxide, the weight ratio of diamond, silicon carbide and cerium oxide is 1:1:8,100 kg of casting liquid, and the weight of the second abrasive grains added is 50 kg.
2. The process for manufacturing abrasive blocks using waste material according to claim 1, wherein the first abrasive particles are diamonds and/or diamonds and the second abrasive particles are diamonds and/or diamonds and the mesh number of the first abrasive particles and the mesh number of the second abrasive particles are the same.
3. The process for making a grinding block from waste material according to claim 1, wherein the first abrasive particles are diamonds and/or diamonds and the second abrasive particles are diamonds and/or diamonds, and the mesh number of the first abrasive particles is larger than that of the second abrasive particles.
4. The process for manufacturing abrasive blocks using waste material according to claim 1, wherein the molding time is 24 hours and the molding temperature is room temperature in step d.
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| CN201710480336.6A CN107199521B (en) | 2017-06-22 | 2017-06-22 | Process for manufacturing grinding block by using waste materials |
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| CN107199521B true CN107199521B (en) | 2020-07-10 |
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| CN109015442A (en) * | 2018-10-05 | 2018-12-18 | 萍乡市三力科技有限责任公司 | A kind of preparation method of the multiple elements design grinding tool made of waste and old abrasive material |
| CN111230760A (en) * | 2018-11-29 | 2020-06-05 | 东泰高科装备科技有限公司 | Method for utilizing polishing pad tailing |
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| CN2541124Y (en) * | 2002-05-21 | 2003-03-26 | 周霞 | Resin abrasive wheel compdounded by wasted abrasive wheel |
| CN1911600A (en) * | 2006-09-01 | 2007-02-14 | 东莞市天盛玻璃纤维有限公司 | Method for producing glass fiber net cover using glass fiber net sheet waste material and net cover |
| CN101579844A (en) * | 2008-05-14 | 2009-11-18 | 王传 | Method for producing safe grinding wheel by using waste cutting blades |
| CN102490128A (en) * | 2011-11-14 | 2012-06-13 | 郭荣龙 | Method for manufacturing grinding tool for polishing metal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007223B (en) * | 1986-09-29 | 1990-03-21 | 王宝广 | Cement abrasive tods and the method of production thereof |
| JP2003039331A (en) * | 2001-08-01 | 2003-02-13 | Noritake Co Ltd | Grinding wheel having resin core part, manufacturing method thereof, and recycling method thereof |
| CN103495938B (en) * | 2013-10-16 | 2016-04-20 | 广东奔朗新材料股份有限公司 | The compound Elastic abrasive body of resin metallic and make mould and preparation method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541124Y (en) * | 2002-05-21 | 2003-03-26 | 周霞 | Resin abrasive wheel compdounded by wasted abrasive wheel |
| CN1911600A (en) * | 2006-09-01 | 2007-02-14 | 东莞市天盛玻璃纤维有限公司 | Method for producing glass fiber net cover using glass fiber net sheet waste material and net cover |
| CN101579844A (en) * | 2008-05-14 | 2009-11-18 | 王传 | Method for producing safe grinding wheel by using waste cutting blades |
| CN102490128A (en) * | 2011-11-14 | 2012-06-13 | 郭荣龙 | Method for manufacturing grinding tool for polishing metal |
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