A kind of polishing abrasive belt and preparation method thereof

Abstract

The invention discloses a polishing abrasive belt and a preparation method thereof. The polishing abrasive belt comprises a belt-shaped substrate, a modified epoxy resin poured in the substrate, and ablack corundum sand material uniformly distributed in the modified epoxy resin. The ratio of the weight of the black corundum sand material to the weight of the modified epoxy resin is 3-7:1, and theparticle size range of the black corundum sand material is P40-P360. The substrate is an industrial scouring pad which is made of a nylon material. The modified epoxy resin is prepared from epoxy resin, a curing agent, a modifier and a viscosity modifier. The curing agent is polyamide, and the modifier is polybutadiene. The preparation method includes the steps of epoxy resin modification, blending, grouting and curing. The sand carrying capacity of the polishing abrasive belt is improved, abrasive particles are distributed in the whole substrate, instead of only on the surface, there is no need to repeatedly apply gluing for sand adhesion, and the polishing abrasive belt is long in service life, low in cost and high in cost performance.

Description

technical field [0001] The invention relates to the technical field of polishing abrasive tools, in particular to a polishing abrasive belt and a preparation method thereof. Background technique [0002] Black corundum is made of high-alumina bauxite plus high-iron bauxite or iron oxide scraps, which are melted and smelted at high temperature in an electric arc furnace and then cooled to produce a kind of Al 2 o 3 It is a gray-black crystal with iron spinel as the main mineral phase. Its main chemical composition is aluminum oxide (Al 2 o 3 ), ferric oxide (Fe 2 o 3 ), and another part of silicon dioxide (SiO 2 ), titanium dioxide (TiO 2 ) and other ingredients. The production process of black corundum determines that the production power consumption is lower than that of brown corundum, and the emission is less. It is an environmentally friendly and cost-effective abrasive product. Black corundum abrasives are traditionally mainly used for surface treatment such a...

AI Technical Summary

Problems solved by technology

[0003] The polishing of existing stainless steel products generally uses a cloth wheel as the base material, and the outer edge of the cloth wheel is coated with glue and sand to make a polishing wheel. The abrasive particles stick to the outer edge surface of the cloth wheel. Sometimes the grinding wheel needs to be re-coated with glue and sticky sand to continue to use, which results in low working efficiency and low stability of the grinding wheel, which is easy to cause uneven grinding and polishing, and the cost of repeated glue coating is high, and the glue used as the adhesive is usually irritating. Sexual smell, not conducive to the health of the staff

There are also some industries that use abrasive belts for grinding and polishing, but the abrasive belts used are electrostatically planted sand on the surface of the substrate, and the sand content is only a layer of sand on the surface. After falling off, the abrasive belt will be scrapped and cannot be replanted with sand. The durability of the abrasive belt is very low and the service life is very short.