Yongjin Chemical Investment Management Co., Ltd., a joint venture of Tonghua Gold Coal and Henan Coal Chemical Group, a subsidiary of Danhua Technology (600844), established five wholly-owned subsidiaries of ethylene glycol projects, each of which will build an annual output of 200,000 tons of coal. For the ethylene glycol project, the planned total use of funds is no more than 3.7 billion yuan. As of December 31, 2011, about 2.884 billion yuan has been invested, of which, except for the Luoyang ethylene glycol project that has not yet fully started, the Xinxiang glycol project is expected to be completed by the end of March 2012 and trial production will begin. Yongcheng, Fuyang and Anyang The three ethylene glycol projects are expected to be completed and start trial production in 2012. In addition, the production of ethylene glycol and oxalic acid plants in Tongliao Gold has previously been resolved. The damaged reactors have been replaced and the entire unit is scheduled to restart this week. Chrome Plating Production Line
Metal electroplating line is widely used in aircraft and auto parts, machinery parts, metal, hardware processing industries, including cooper plating, silver plating, zinc plating, nickel plating, gold plating, chrom plating, anodizing, electrophoresis production line,etc.
Chrome plating refers to the act of plating chromium as a plating layer on other metals. Chrome Plating Production Line,Chrome Plating Line,Chrome Electroplating Line,Hard Chrome Plating Line Wuxi Xingyi Intelligent Environment Protection Equipment Co.,Ltd. , https://www.xingyimachinery.com
Chromium is a kind of silver-white metal with a bluish tint. Metal chromium is easily passivated in the air, and a very thin passivation film is formed on the surface, thus showing the properties of precious metals.
The chromium-plated layer has a very high hardness, and its hardness can vary within a wide range of 400-1200HV according to the composition of the plating solution and process conditions. The chromium-plated layer has good heat resistance. When heated below 500℃, there is no obvious change in gloss and hardness. The temperature above 500℃ starts to oxidize and discolor, and the hardness starts to decrease when the temperature exceeds 700℃. The friction coefficient of the chrome layer is small, especially the dry friction coefficient, which is the lowest among all metals. Therefore, the chrome-plated layer has good wear resistance.