Bayer MaterialScience is expanding its HMD plant in Shanghai to meet growing demand for paints and adhesives in the automotive, construction, textile and footwear industries. The new expansion project has already broken ground and is expected to be completed in 2016. By then, the HDI production capacity of Bayer MaterialScience's integrated production base in Shanghai will increase by 50,000 tons/year. Before that, the factory's HDI production capacity was 30,000 tons/year. . Bayer MaterialScience said that China’s middle class is growing and its demand for high-end end products is rapidly rising. According to the forecast of McKinsey & Company, the proportion of middle-class population in Chinese cities will reach 76% by 2022, which was only 4% in 2000.
Valves is one of the key components that affect engine reliability and safety. It's mainly used to start and shut down the intake and exhaust passages during engine operation, to control the intake of fuel mixture or air and the discharge of exhaust gases. . The working environment of the valve and Valve Seat is very harsh. In addition to the corrosion of high temperature gas, it also bears the impact of the burst pressure in the cylinder.
The material of the valve is usually divided into 40Cr, 4Cr9Si2, 4Cr10Si2Mo, 21-4N and 23-8N in China. 5Cr8Si2, 4Cr9Si3, 21-2N, 21-12N, 23-8N, XB, etc. have been used in large quantities on some imported models. High-temperature nickel-based alloys are also being used on high-load diesel exhaust valves.
Truck Engine Valve,Truck Diesel Engine Valve,Exhaust Valve For Engine,Truck Generator Set Engine Valves Hebei Zhonghai Shipping Accessories Manufacturing Co., Ltd. , http://www.zhonghaiship.com
Foundation stone for Bayer MaterialScience's Shanghai HDI plant expansion project