Zirconium corundum heavy load strong abrasive band

Abstract

The invention relates to an abrasive belt, which is a zirconium corundum heavy-duty strong abrasive belt, composed of a cloth base, an adhesive, and a grinding material. The grinding material is zirconium corundum, and the grinding material is bonded to the cloth base through the adhesive. It is characterized in that: The adhesive is composed of the following components by weight percentage: 28% to 36% of first-order thermosetting phenolic resin, 4% to 8% of diphenolic propane type epoxy resin, 1% to 4% of melamine resin, and 0.2% to 0.6% of boron %, dispersant 0.1%~0.3%, coupling agent 0.1%~0.3%, diluent 3%~6%, fluoride salt 45%~60%, inert gas fluoride 0.5%~1%. The adhesive of the present invention improves the heat resistance of the abrasive belt and the bonding strength under high temperature conditions. The zirconium corundum heavy-duty strong abrasive belt of the present invention can quickly soften and reduce the hardness of the metal surface, which will neither burn the metal surface nor greatly improve the hardness of the abrasive belt. improved grinding efficiency.

Description

technical field [0001] The invention relates to an abrasive belt, in particular to a zirconium corundum heavy-duty strong abrasive belt. Background technique [0002] With the rapid development of the machinery industry, the requirements for coated abrasive products are getting higher and higher, and the consumption is also increasing. In the grinding process of the surface treatment of metal structural parts, various requirements are also put forward for the grinding of the workpiece to be ground. [0003] Countries with developed machinery industries in Asia such as Japan and South Korea have developed a strong abrasive belt for rough grinding and medium grinding on the surface of metal components under heavy load conditions in recent years, which is called heavy-duty strong abrasive belt. This kind of heavy-duty powerful abrasive belt abroad has occupied the entire Asian market including China for a period of time. At present, the high-quality heavy-duty strong abrasive...

AI Technical Summary

Problems solved by technology

At present, the adhesive for heavy-duty strong abrasive belts in the domestic market is made of a mixture of phenolic resin, dispersant, emulsifier, thinner, etc. Its main defects are: ① Low heat resistance: During the heavy-duty grinding process, the grinding The high temperature is generated between the tool and the metal component for a short time, and the high temperature generated instantaneously during grinding will cause the surface of the workpiece to be ground to burn (deform or discolor)

②The bonding strength at high temperature is low. During the heavy-duty grinding process, high temperature is generated between the abrasive tool and the metal component for a short time, the adhesive with low heat resistance changes, the ability to hold the abrasive is seriously insufficient, and the sand grains fall off and lose the abrasive. grinding ability, leading to a serious decline in the grinding effect of the product, or even unable to meet the grinding requirements

It is precisely because of the above defects of the adhesive that the domestic heavy-duty strong abrasive belt will burn the metal surface during grinding, the abrasive is easy to fall off, the grinding efficiency is low, and the service life is short

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