CN109531452B - Environment-friendly resin grinding wheel and preparation method thereof - Google Patents
Environment-friendly resin grinding wheel and preparation method thereof Download PDFInfo
- Publication number
- CN109531452B CN109531452B CN201811442483.5A CN201811442483A CN109531452B CN 109531452 B CN109531452 B CN 109531452B CN 201811442483 A CN201811442483 A CN 201811442483A CN 109531452 B CN109531452 B CN 109531452B
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- parts
- environment
- epoxy
- mixture
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses an environment-friendly resin grinding wheel and a preparation method thereof. In the preparation process, the raw materials are uniformly mixed to form a mixture, the mixture is added into a die in three equal parts to be pressed and molded to obtain a grinding wheel blank, and the grinding wheel blank is fired to obtain the environment-friendly resin grinding wheel. The epoxy resin is used as the binder, so that the content of formaldehyde and phenol in the grinding wheel is greatly reduced, the use environment of workers is improved, and the harm to the bodies of the workers in the use process of the grinding wheel is reduced.
Description
Technical Field
The invention relates to the technical field of grinding wheels, in particular to an environment-friendly resin grinding wheel and a preparation method thereof.
Background
In the industrial technology field, a workpiece is often ground, and a grinding wheel is mostly used for grinding a workpiece with hardness lower than that of the grinding wheel by utilizing rotary motion. If the grinding wheel contains harmful substances, air can be polluted, and the health of workers on site is damaged.
The main raw materials of the grinding wheel are abrasive, filler and binder. The main component of the currently used grinding wheel binder is phenolic resin, for example, the main components of the binder used in the manufacturing method of the environment-friendly resin grinding wheel with the patent number of CN103111949A and the heavy-load grinding resin grinding wheel with the patent number of CN102513947A are phenolic resin, the phenolic resin is resin obtained by condensing phenol or homologues thereof (such as cresol, xylenol and the like) and formaldehyde, the phenol and the formaldehyde have harmful effects on human bodies, and the emitted formaldehyde can be absorbed into the human bodies and cause harm to the health of the human bodies. Meanwhile, in the using process of the grinding wheel, the grinding wheel can be worn while grinding cutting materials, and the worn grinding wheel powder can be diffused in the air and sucked into the body by personnel on the construction site, so that the body health of ready-made personnel is greatly damaged.
Therefore, an environment-friendly resin grinding wheel with low content of phenol and formaldehyde is urgently needed, and the health hazard of workers during cutting and grinding of workpieces by using the grinding wheel is reduced.
Disclosure of Invention
The invention aims to solve the problem that substances harmful to human bodies in grinding wheels enter the human bodies and harm the health of the human bodies, and provides a grinding wheel free of harmful substances such as formaldehyde, phenol and the like and a preparation method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: the environment-friendly resin grinding wheel is prepared from raw materials of 60-80 parts of white corundum abrasive, 10-20 parts of filler, 4-10 parts of solid binder and 6-10 parts of epoxy wetting agent according to the weight ratio, wherein the filler is prepared from cryolite and barium sulfate whisker according to the weight ratio of 2-3: 2-3 in proportion; the solid adhesive is formed by mixing epoxy resin powder and dicyandiamide according to the weight ratio of 6-8:1-2, and the epoxy wetting agent is epoxy resin liquid.
The white corundum abrasive particle size is as follows: F20-F400; the preparation method of the solid binder comprises the following steps: firstly, mixing commercially available epoxy resin blocks and dicyandiamide according to the weight ratio of 6-8:1-2, grinding the mixture in a grinder until the particle size is F200-F300 to form a powdery mixture, namely a solid adhesive; the preparation method of the epoxy wetting agent comprises the following steps: heating the commercially available epoxy resin liquid to 50-60 ℃ and then carrying out heat preservation treatment.
The preparation method of the environment-friendly resin grinding wheel comprises the following steps:
step one, respectively weighing 60-80 parts of white corundum abrasive, 10-20 parts of filler, 4-10 parts of solid adhesive and 6-10 parts of epoxy wetting agent, mixing the epoxy wetting agent and the white corundum abrasive in a mixer, and then sequentially adding the filler and the solid adhesive to fully mix the mixture for later use;
step two, weighing the mixture obtained in the step one, dividing the mixture into a plurality of equal parts, sequentially pouring the equal parts into a mold, paving reinforcing mesh cloth between every two adjacent equal parts, pushing the mold into a press after feeding is finished, and performing compression molding at the temperature of 80-100 ℃ to obtain a grinding wheel blank;
and step three, placing the grinding wheel blank in the step two into a hardening furnace for sintering, wherein the sintering temperature is increased from 60 ℃ to 190 ℃ within 19 hours, and naturally cooling to room temperature after sintering is finished, so as to obtain the environment-friendly resin grinding wheel.
Furthermore, the grinding wheel raw material in the step one is divided into three equal parts and sequentially added into the die.
Compared with the prior art, the invention has the following remarkable advantages and beneficial effects:
the main material of the binder is epoxy resin, the main component of the epoxy resin is an organic macromolecular compound containing two or more than two epoxy groups, and after the epoxy resin is used for replacing phenolic resin, harmful substances such as phenol, formaldehyde and the like contained in the grinding wheel are greatly reduced, and the harm to the body of workers in the grinding process of the grinding wheel is reduced.
The grinding material adopts white corundum with low iron content, the hardness of the manufactured grinding wheel is high, the grinding wheel is suitable for processing materials of various materials, the grinding wheels of various different models do not need to be purchased, and the use cost is reduced.
In conclusion, the environment-friendly resin grinding wheel and the preparation method thereof have the advantages of no harmful substances such as formaldehyde and phenol, reduction of the harm to the health of human bodies caused by the grinding wheel, high hardness, suitability for cutting various materials and the like.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1:
the environment-friendly resin grinding wheel is prepared from 60 parts of white corundum abrasive with the granularity of F20-F400, 10 parts of filler, 4 parts of solid binder and 6 parts of epoxy wetting agent according to the weight ratio of (2): 3, mixing the components in proportion; the solid adhesive is formed by mixing epoxy resin powder and dicyandiamide according to the weight ratio of 6: 1; the epoxy wetting agent is epoxy resin liquid.
The preparation method of the solid binder comprises the following steps: firstly, mixing commercially available epoxy resin blocks and dicyandiamide according to the weight ratio of 6:1, grinding the mixture in a grinder until the granularity is F200-F300 to form a powdery mixture, namely a solid adhesive; the preparation method of the epoxy wetting agent comprises the following steps: heating the commercially available epoxy resin liquid to 50-60 ℃ and then carrying out heat preservation treatment.
A preparation method of an environment-friendly resin grinding wheel comprises the following steps:
step one, respectively weighing 60 parts of white corundum abrasive with the granularity of F20, 10 parts of filler, 4 parts of solid adhesive and 6 parts of epoxy wetting agent, mixing the epoxy wetting agent and the white corundum abrasive in a mixer, uniformly mixing, then sequentially adding the filler and the solid adhesive, and fully mixing the mixture for later use.
And step two, weighing the mixture obtained in the step one to manufacture a grinding wheel, dividing the mixture into three equal parts, sequentially pouring the three equal parts into a mold, paving reinforcing mesh cloth between every two adjacent equal parts, pushing the mold into a press after feeding is completed, and performing compression molding at the temperature of 80 ℃ to obtain a grinding wheel blank.
And step three, firing the grinding wheel green body in the step two, preheating a firing furnace to 60 ℃ during firing, then adding the grinding wheel green body into the furnace for firing, wherein the temperature during firing gradually rises, the temperature in the furnace rises from 60 ℃ to 190 ℃ within 16 hours, then keeping for three hours, then closing a power supply, opening the furnace door for 10mm after closing the power supply for 3 hours, opening the furnace door for 20mm after half an hour, and opening the furnace door after 1 hour. And naturally cooling to room temperature to obtain the environment-friendly resin grinding wheel.
Example 2:
the environment-friendly resin grinding wheel is prepared from raw materials, by weight, 80 parts of white corundum abrasive with the granularity of F400, 20 parts of filler, 10 parts of solid binder and 10 parts of epoxy wetting agent, wherein the filler is prepared from cryolite and barium sulfate whiskers according to the weight ratio of 1: 1 in proportion; the solid adhesive is formed by mixing epoxy resin powder and dicyandiamide according to the weight ratio of 4: 1; the epoxy wetting agent is epoxy resin liquid.
The preparation method of the solid binder comprises the following steps: firstly, mixing commercially available epoxy resin blocks and dicyandiamide according to the weight ratio of 4:1, grinding the mixture in a grinder until the particle size is F200-F300 to form a powdery mixture, namely a solid adhesive; the preparation method of the epoxy wetting agent comprises the following steps: heating the commercially available epoxy resin liquid to 50-60 ℃ and then carrying out heat preservation treatment.
A preparation method of an environment-friendly resin grinding wheel comprises the following steps:
step one, respectively weighing 80 parts of white corundum abrasive with the granularity of F400, 20 parts of filler, 10 parts of solid adhesive and 10 parts of epoxy wetting agent, mixing the epoxy wetting agent and the white corundum abrasive in a mixer, uniformly mixing, then sequentially adding the filler and the solid adhesive, and fully mixing the mixture for later use.
And step two, weighing the mixture obtained in the step one to manufacture a grinding wheel, dividing the mixture into three equal parts, sequentially pouring the three equal parts into a mold, paving reinforcing mesh cloth between every two adjacent equal parts, pushing the mold into a press after feeding is completed, and performing compression molding at the temperature of 100 ℃ to obtain a grinding wheel blank.
And step three, firing the grinding wheel green body in the step two, preheating a firing furnace to 60 ℃ during firing, then adding the grinding wheel green body into the furnace for firing, wherein the temperature during firing gradually rises, the temperature in the furnace rises from 60 ℃ to 190 ℃ within 16 hours, then keeping for three hours, then closing a power supply, opening the furnace door for 10mm after closing the power supply for 3 hours, opening the furnace door for 20mm after half an hour, and opening the furnace door after 1 hour. And naturally cooling to room temperature to obtain the environment-friendly resin grinding wheel.
Example 3
The environment-friendly resin grinding wheel is prepared from 70 parts of white corundum abrasive with the granularity of F300, 15 parts of filler, 7 parts of solid binder and 8 parts of epoxy wetting agent according to the weight ratio of (3): 2 in proportion; the solid adhesive is formed by mixing epoxy resin powder and dicyandiamide according to the weight ratio of 7: 1; the epoxy wetting agent is epoxy resin liquid.
The preparation method of the solid binder comprises the following steps: firstly, mixing commercially available epoxy resin blocks and dicyandiamide according to the weight ratio of 7:1, grinding the mixture in a grinder until the particle size is F250 to form a powdery mixture, namely a solid adhesive; the preparation method of the epoxy wetting agent comprises the following steps: heating the commercially available epoxy resin liquid to 50-60 ℃ and then carrying out heat preservation treatment.
A preparation method of an environment-friendly resin grinding wheel comprises the following steps:
step one, respectively weighing 70 parts of white corundum abrasive with the granularity of F300, 15 parts of filler, 7 parts of solid adhesive and 8 parts of epoxy wetting agent, mixing the epoxy wetting agent and the white corundum abrasive in a mixer, uniformly mixing, then sequentially adding the filler and the solid adhesive, and fully mixing the mixture for later use.
And step two, weighing the mixture obtained in the step one to manufacture a grinding wheel, dividing the mixture into three equal parts, sequentially pouring the three equal parts into a mold, paving reinforcing mesh cloth between every two adjacent equal parts, pushing the mold into a press after feeding is completed, and performing compression molding at the temperature of 90 ℃ to obtain a grinding wheel blank.
And step three, firing the grinding wheel green body in the step two, preheating a firing furnace to 60 ℃ during firing, then adding the grinding wheel green body into the furnace for firing, wherein the temperature during firing gradually rises, the temperature in the furnace rises from 60 ℃ to 190 ℃ within 16 hours, then keeping for three hours, then closing a power supply, opening the furnace door for 10mm after closing the power supply for 3 hours, opening the furnace door for 20mm after half an hour, and opening the furnace door after 1 hour. And naturally cooling to room temperature to obtain the environment-friendly resin grinding wheel.
The technical solutions and embodiments of the present invention are not limited, and the same solutions or effects as those of the technical solutions and embodiments of the present invention are within the scope of the present invention.
Claims (3)
1. An environment-friendly resin grinding wheel is characterized in that: the raw materials for preparing the environment-friendly resin grinding wheel comprise, by weight, 60-80 parts of white corundum abrasive, 10-20 parts of filler, 4-10 parts of solid binder and 6-10 parts of epoxy wetting agent, wherein the filler comprises cryolite and barium sulfate whisker according to a weight ratio of 2-3: 2-3 in proportion; the solid adhesive is formed by mixing epoxy resin powder and dicyandiamide according to the weight ratio of 6-8:1-2, the epoxy wetting agent is epoxy resin liquid, and the white corundum abrasive material has the granularity: F20-F400; the preparation method of the solid binder comprises the following steps: firstly, mixing commercially available epoxy resin blocks and dicyandiamide according to the weight ratio of 6-8:1-2, grinding the mixture in a grinder until the particle size is F200-F300 to form a powdery mixture, namely a solid adhesive; the preparation method of the epoxy wetting agent comprises the following steps: heating the commercially available epoxy resin liquid to 50-60 ℃ and then carrying out heat preservation treatment.
2. The method for manufacturing the environment-friendly resin grinding wheel according to claim 1, wherein:
step one, respectively weighing 60-80 parts of white corundum abrasive, 10-20 parts of filler, 4-10 parts of solid adhesive and 6-10 parts of epoxy wetting agent, mixing the epoxy wetting agent and the white corundum abrasive in a mixer, and then sequentially adding the filler and the solid adhesive to fully mix the mixture for later use;
step two, weighing the mixture obtained in the step one, dividing the mixture into a plurality of equal parts, sequentially pouring the equal parts into a mold, paving reinforcing mesh cloth between every two adjacent equal parts, pushing the mold into a press after feeding is finished, and performing compression molding at the temperature of 80-100 ℃ to obtain a grinding wheel blank;
and step three, placing the grinding wheel blank in the step two into a hardening furnace for sintering, wherein the sintering temperature is increased from 60 ℃ to 190 ℃ within 19 hours, and naturally cooling to room temperature after sintering is finished, so as to obtain the environment-friendly resin grinding wheel.
3. The method for manufacturing the environment-friendly resin grinding wheel according to claim 2, characterized in that: the grinding wheel raw material in the step one is divided into three equal parts and is sequentially added into a die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442483.5A CN109531452B (en) | 2018-11-29 | 2018-11-29 | Environment-friendly resin grinding wheel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442483.5A CN109531452B (en) | 2018-11-29 | 2018-11-29 | Environment-friendly resin grinding wheel and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109531452A CN109531452A (en) | 2019-03-29 |
| CN109531452B true CN109531452B (en) | 2020-10-16 |
Family
ID=65852315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811442483.5A Active CN109531452B (en) | 2018-11-29 | 2018-11-29 | Environment-friendly resin grinding wheel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109531452B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905446A (en) * | 2010-07-29 | 2010-12-08 | 江苏苏北砂轮厂有限公司 | Method for manufacturing resin grinding wheel |
| CN102825557A (en) * | 2012-07-31 | 2012-12-19 | 安徽威铭耐磨材料有限公司 | Polyvinyl acetal resin grinding wheel and production method thereof |
| CN103921220A (en) * | 2014-05-08 | 2014-07-16 | 武汉法山磨料磨具有限公司 | Method for preparing resin grinding wheel containing epoxy resin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344573B2 (en) * | 2003-11-06 | 2008-03-18 | Saint-Gobain Abrasives Technology Company | Impregnation of grinding wheels using supercritical fluids |
-
2018
- 2018-11-29 CN CN201811442483.5A patent/CN109531452B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905446A (en) * | 2010-07-29 | 2010-12-08 | 江苏苏北砂轮厂有限公司 | Method for manufacturing resin grinding wheel |
| CN102825557A (en) * | 2012-07-31 | 2012-12-19 | 安徽威铭耐磨材料有限公司 | Polyvinyl acetal resin grinding wheel and production method thereof |
| CN103921220A (en) * | 2014-05-08 | 2014-07-16 | 武汉法山磨料磨具有限公司 | Method for preparing resin grinding wheel containing epoxy resin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109531452A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101804604B (en) | High-performance flexible-cutting resin bonded grinding wheel and production process thereof | |
| CN101966693B (en) | Fiber-reinforced resin heat-resistant high-speed abrasive cutting wheel and processing method thereof | |
| CN106552902B (en) | Efficient anti-vein type precoated sand and preparation method thereof | |
| CN103465179A (en) | Resin rough grinding wheel and preparation method thereof | |
| CN102153718A (en) | Heat-resistant phenolic resin and application thereof in production of super-hard material resin mold | |
| CN104889895B (en) | Formula of cutting blade for hot cutting casting piece and machining method | |
| US5089032A (en) | Grinding wheel | |
| CN109531452B (en) | Environment-friendly resin grinding wheel and preparation method thereof | |
| JPS585241A (en) | Method of powder molding | |
| CN103862391A (en) | Ceramic crystallite abrasive heavy loading high-speed grinding wheel and processing method thereof | |
| CN108033793A (en) | A kind of 3D printing silicon nitride ceramic material and preparation method thereof | |
| CN103224346B (en) | Resin grinding plate for ultraprecise processing of bearing balls and manufacturing method thereof | |
| CN105777129A (en) | Boron carbide material and preparation method thereof | |
| CN110977800A (en) | Manufacturing method of ultra-high-speed grinding wheel | |
| CN106607770B (en) | A kind of preparation method of microcrystal fused alumina Ceramic mill disc | |
| CN109420989A (en) | A kind of resin diamond grinding wheel and preparation method thereof | |
| CN111590478A (en) | Manufacturing process of composite material superhard grinding wheel grinding tool | |
| CN110587497A (en) | Green and environment-friendly grinding material layer, preparation method thereof and grinding wheel | |
| CN105643479B (en) | A kind of dry type chamfering wheel and preparation method thereof | |
| CN104120367A (en) | High-hardness flange prepared by employing powder metallurgy and preparation method thereof | |
| CN115366013B (en) | Double-horse polyimide resin grinding wheel for dry grinding | |
| CN109333389A (en) | A kind of high-precision resin wheel and its processing technology | |
| CN113185189B (en) | High-hardness artificial stone and preparation method thereof | |
| CN113199415B (en) | Artificial stone mirror polishing grinding tool and preparation method thereof | |
| CN108942703A (en) | A kind of superthin diamond grinding wheel production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |