Anti-cracking and anti-knocking resin grinding wheel

Abstract

The invention discloses an anti-cracking and anti-knocking resin grinding wheel, belongs to the field of grinding wheels, and solves the problems of easy cracking and easy knocking in high-speed operation of a traditional grinding wheel. The anti-cracking and anti-knocking resin grinding wheel comprises a grinding wheel body, wherein glass fiber mesh fabrics coated with phenolic resins are arranged on the upper and lower surfaces of the grinding wheel body; polypropylene fibers and high-carbon steel wires for reinforcing the hardness and the roughness of the grinding wheel are arranged in the grinding wheel body; and the grinding wheel body is compounded by 65-80% of abrasive materials, 10-20% of bonding agent and 8-18% of auxiliary materials. The polypropylene fibers and the high-carbon steel wires specially treated are doped in the grinding wheel body to enable the grinding wheel to disperse the orientation stress of a mixture in the forming hardening process, so that the number and the scale of native microfractures are eliminated or reduced, the roughness of the grinding wheel is improved, and a lot of gas hole channels can be generated at high temperature to facilitate quick discharge of high-temperature gas so as to prevent the generation of burst phenomenon; and as the netty high-carbon steel wires are across wound, the holding force of the mixture is reinforced, and the strength of the grinding wheel body is improved.

Description

technical field [0001] The invention relates to a grinding wheel for abrasive tools, in particular to a crack-proof and explosion-proof resin grinding wheel with high strength, ultra-thin wheel slices and narrow cuts. Background technique [0002] The abrasives industry is an important and indispensable function in the machine tool industry. Its products are widely used in various industries in the processing and manufacturing industry, and the application fields involved have been continuously expanded in recent years. With the rapid development of machinery manufacturing, building materials and other industries at home and abroad, it is objectively required for abrasives to adapt to them. Grinding wheels are the main products in the abrasives and abrasives industry. Their cutting and grinding performance is high-quality, efficient, safe and One product with multiple functions and low cost are becoming the common requirements of industry enterprises. my country's steel, au...

AI Technical Summary

Problems solved by technology

The grinding wheel with low molding density has loose structure and low strength, and the strength requirement can only be met by increasing the thickness of the grinding wheel

Excessive thickness of the grinding wheel will not only increase the cutting volume, waste steel, but also make it difficult to achieve cutting accuracy

On the other hand, the grinding wheel with low molding density consumes a lot of itself during cutting, the cutting ratio is small, and the service life is short. Frequent replacement of the grinding wheel during the cutting process will inevitably reduce labor efficiency.

On the contrary, due to the dense structure and high hardness value of the high-density grinding wheel, although the grinding wheel itself is less worn out during cutting, the cutting efficiency is low, and the cutting heat generated is indeed high, and ablation marks and burrs are left on the incision section of the workpiece. It will also cause the resin bond of the grinding wheel to be carbonized, causing the grinding wheel to be prone to brittle crack damage

In severe cases, when the grinding wheel rotates at a high speed, there may even be a dangerous situation where the grinding wheel bursts and flies out due to excessive stress, which poses a great threat to the personal safety of the operator

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