A low-temperature curing process for grinding wheels

A curing process, low temperature technology, applied in the direction of manufacturing tools, metal processing equipment, grinding devices, etc., can solve the problems of binder melting, uneven hardness of grinding wheels, slow heating speed, etc., to improve hardness and mechanical strength, forming process Easy to operate and improve the effect of bonding ability

Active Publication Date: 2021-05-07
江苏华东砂轮有限公司
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Problems solved by technology

[0003] Ordinary grinding wheels need heating, drying, sintering and other processes after pressing. The process is complicated and the hardness of the grinding wheel is not high. Softening produces deformed waste products; if the heating rate is too slow, the center of the product will appear red, resulting in uneven hardness and easy cracking of the grinding wheel; if the hardening time is too long or too short, the hardness of the product will decrease, which does not meet the requirements for use

Method used

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  • A low-temperature curing process for grinding wheels
  • A low-temperature curing process for grinding wheels

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] refer to Figure 1-2 , embodiment 1, a kind of emery wheel low-temperature solidification process, comprises the following steps;

[0030] Step 1, ingredients: according to the weight percentage, it includes main ingredients: 85% of abrasive, 8% of auxiliary material and 7% of curing agent, the abrasive is abrasive particles, the auxiliary materials are gypsum powder and iron sulfide, and the curing agent is polyimide resin;

[0031] Step 2. Mixing: Pu...

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Abstract

The present invention relates to the technical field of low-temperature curing technology, in particular to a low-temperature curing technology for grinding wheels, comprising the following steps: step 1, batching; step 2, mixing; step 3, mold loading; step 4, primary heating; Heating in sections in the machine; step five, cooling; step six, secondary heating: place the mold in the hot press again, and gradually increase the temperature from the initial 0°C to 240°C, at a rate of 10°C per minute The speed increases, and the whole process is completed in a closed environment; Step 7, the mold is taken out from the hot press, and the mold is wrapped with thermal insulation material to slowly cool the mold. The bonding ability between the grain and the binder improves the hardness and mechanical strength of the grinding wheel. The low-temperature curing process can reduce costs and save energy consumption. At the same time, the mechanical strength of the grinding wheel is increased by 10%, and the safety performance of the grinding wheel is also improved.

Description

technical field [0001] The invention relates to the technical field of low-temperature curing technology, in particular to a low-temperature curing technology for grinding wheels. Background technique [0002] Grinding wheel is the most important type of abrasive tool in grinding process. Grinding wheel is a porous body made by adding binder to abrasive, compacted, dried and roasted. Due to the difference of abrasive, binder and manufacturing process, the characteristics of grinding wheel The difference is very large, so it has an important impact on the processing quality, productivity and economy of grinding. The characteristics of the grinding wheel are mainly determined by factors such as abrasive, particle size, bond, hardness, structure, shape and size; [0003] Ordinary grinding wheels need heating, drying, sintering and other processes after pressing. The process is complicated and the hardness of the grinding wheel is not high. Softening will produce deformed waste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00
CPCB24D18/0009
Inventor 陈瑞和刘小磐陈沈萍徐会铭陈瑞平杨晶晶
Owner 江苏华东砂轮有限公司
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