Vakuum povlak stroj je nehybné v počáteční fázi of vývoji)

Although the strip steel vacuum coating is still in the initial stage of development in general, the cost is high and the productivity is low, so its share in the strip surface treatment is still far from that of hot dipping and electroplating. However, The high value-added features of its products and various other advantages show its good application prospects. At present, there are strip steel vacuum coating production lines abroad with a coating width of 1.250m, a maximum strip speed of 180m per minute, and an annual output of 300,000 tons. It is foreseeable that it will become a new bright spot in the sustainable development of the steel industry. Moreover, in today's traditional technology field has been monopolized by foreign steel giants, the development and research of strip vacuum coating technology provides my country with an excellent opportunity to "establish independent intellectual property rights and get rid of the situation of running behind others for a long time".

Vakuum povlak stroj vícevrstvý povlak typ

The production line adopts a variety of modern electro-physical coating methods such as electron beam heating vacuum coating, vacuum sputtering coating and plasma-assisted gas phase coating. The pretreatment of the strip was carried out by electron beam preheating cleaning and glow discharge plasma bombardment, respectively. Different coating methods can be used for multi-layer coating on the same strip surface. The first layer coating requires good adhesion and adopts vacuum sputtering coating; the second layer uses electron beam heating evaporation coating, which has the advantages of high electron beam energy density, high heating temperature, and a wide range of coating materials; the third layer uses plasma enhanced Chemical vapor coating, this kind of coating is uniform and smooth, the film is hard, and the chemical stability is good, which can be used for the outermost protective film. This production line is currently mainly used for scientific research and development. Machinable strip widths are 300, 500 and 800mm.

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