Wet-type fine polishing wheel and preparation method thereof

Abstract

The invention discloses a wet-type fine polishing wheel which is prepared by the following components, by weight, 90-110 parts of polyvinyl alcohol, 100-120 parts of polyurethane prepolymer, 10-15 parts of catalysts, 10-20 parts of air hole forming agents, 10-20 parts of epoxy-modified silicone resin, 55-65 parts of nano abrasives and 450-550 parts of distilled water; the catalysts comprise stannous octoate and dibutyltin dilaurate; the air hole forming agents comprise one or more of a foaming agent, a foam stabilizer, a foam homogenizing agent and a hole filling agent; and an epoxide number of the epoxy-modified silicone resin is 0.03-0.08. The fine polishing wheel has high resilience and flexibility and super-high sharpness and abrasion resistance, can effectively repair scratches, and has outstanding effects particularly on the grinding and polishing of arcs and uneven surfaces. The invention further discloses a preparation method of the wet-type fine polishing wheel.

Description

technical field [0001] The invention relates to the field of polishing and grinding, in particular to a wet fine polishing wheel and a preparation method thereof. Background technique [0002] Polishing technology is an emerging technology and a complex edge discipline, which belongs to the field of grinding and polishing technology. The polishing wheel integrates grinding and polishing, with excellent grinding and polishing performance, and is widely used in various fields such as aviation, machinery, automobile, shipbuilding, metallurgy, chemical industry, construction, furniture, decoration and daily necessities. [0003] At present, the known polishing wheels used for grinding and polishing of non-ferrous metals, hard alloys and various non-metallic materials include cloth wheels, hemp wheels, nylon wheels, wiring wheels, wind wheels, wool wheels, sponge wheels and so on. In precision polishing, the polishing wheel is mainly made of various cotton cloth, fine felt, silk...

AI Technical Summary

Problems solved by technology

Due to the need for high-temperature sintering, the traditional method is prone to black cores and has a high scrap rate

At the same time, in the application of polishing wheels, traditional polishing wheels generally have poor water resistance, low elasticity, high hardness, and weak self-sharpness, and need to be polished in a dry environment

Moreover, during the operation process, a large amount of dust particles will be produced, which will cause harm to the operator's body. When the dust accumulates to a certain extent, there is a risk of dust explosion, which has a greater safety hazard.

In terms of processing accuracy, high temperature and high heat are easily generated in the traditional polishing process, it is difficult to remove abrasive debris, and it is easy to cause filling phenomenon, resulting in burn damage to the workpiece, greatly reducing the product processing yield, and it is difficult to meet the requirements of high-precision polishing

[0005] In order to solve the disadvantages of traditional polishing technology, new technologies such as magnetic grinding and polishing, ultrasonic polishing, and ion beam grinding and polishing have emerged. Although they can achieve high grinding accuracy, due to their high cost, they are currently only used in aviation and national defense. In the field of high-end technology, it still cannot be applied on a large scale in mass production

Images