香蕉久久久久久久av网站_在线不卡亚洲_亚洲影音一区_美女亚洲精品_亚洲经典自拍_中国女人久久久_亚洲激情午夜_国产精品一区在线播放_亚洲韩日在线_久久久青草婷婷精品综合日韩

Chemical Industries

Pipelines and valves and other equipment play an important role in modern coal chemical plants. The harsh transportation conditions of the coal chemical industry put a large toll on the pipelines and valves requiring frequent and serious wear causing failure problems. Therefore, the requirements for corrosion resistance and wear resistance pipeline valves are very high. High-speed erosion wear mainly occurs in the spool of the regulating valve, the plunger valve, and the ball component of the ball valve. The surface hardening method and material selection of wear-resistant valves directly affect the performance and working life of the valve. Seed provides high-end wear-resistant materials and skilled valve surface hardening technologies such as: special powder metallurgy, supersonic flame spraying, vacuum fusion, flame re-melting process, laser cladding and more. Seed provides solutions for the severe working conditions of the coal chemical industry.