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Principle of metal plastic coating in dalian

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Principle of metal plastic coating in dalian

Date of release:2019-06-19 Author: Click:

Dalian metal and plastic coating is heated and melted. For wire, when the end enters the hot area of heat source, it is heated and melted. For the powder, it enters the hot area of the heat source and is heated to melt or soften as it progresses. Jet flight of molten or softened fine particles in the flight process, the particles are first accelerated to form a stream of particles, with the flight distance increases, the particle movement speed gradually decreases.

Coating can be formed on a variety of substrate materials, including metal matrix, ceramic matrix, plastic matrix, wood and even board can be sprayed, sprayed material range is very wide, almost unlimited, coating deposition efficiency is high, especially suitable for deposition of thin film coating. Coating thickness can be controlled, can change in a large range, from dozens of microns to a few millimeters even can be as thick as 20mm, in the premise of meeting the strength requirements, the substrate can be used to replace the precious materials, only the coating of high-quality materials, so that "good steel used in the blade", but also spray forming.

Dalian metal plastic coating contains different degrees of pores, for corrosion resistance, oxidation resistance, insulation and other applications, generally not as good as the whole material. However, it can be improved through the design of composite coating system and other methods. The working conditions in manual operation of thermal spraying are poor, with problems of noise, dust, heat and arc radiation. Therefore, attention must be paid to ventilation in the operation room, and labor protection measures should be strengthened.

When the spraying position is part of the surface of the workpiece, the spraying groove must be opened on the base where spraying is needed, and the chamfering of both ends of the spraying groove must not be greater than 45°, generally 45° or 30°, and the width should not be less than 1mm. The spraying position shall not have obvious knife mark, local depression, peeling and other defects on the surface after adding the machine, and shall not have obvious burr. The majority of coating post-processing are used for grinding or grinding polishing, in which the single feed amount must be controlled within 0.01mm in coarse grinding operation, and the single feed amount of fine grinding must be controlled within 0.005mm. Attention must be paid to the protection of spraying position during the processing of non-spraying position.

Dalian metal plastic coating metal materials (such as stainless steel, zinc alloy, aluminum alloy, etc.) and plastic (nylon, PP, ABS, PC and other materials) surface treatment technology, such as electroplating, paint, water transfer, etc., but our common main paint. Metal and plastic surface paint off the problem of methods: corona, flame treatment, surface polishing and so on, but are more traditional methods, complex operation process, can not effectively and steadily solve the problem.


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Dalian Economic and Technological Development Zone, Liaoning Province



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