Currently, 26% of aluminum transportation aluminum production, while China is only 5.7%. As China's economic development and people's living standards improve, the demand for transport is increasing, therefore, aluminum material on our transportation is still much room for development. Almost all modern car engine pistons with cast aluminum alloy, it is because as the primary piston reciprocating member to rely on weight loss to reduce inertia, reducing crankshaft counterweight, improve efficiency, and the need to have good thermal conductivity material, the smaller thermal expansion coefficient, and has good mechanical properties at about 350 ℃, while the cast aluminum can meet these requirements. At the same time due to the piston rod with a cast aluminum parts, reducing the quality of refractory house Which is good, thereby reducing the vibration of the engine, reducing the noise refractory agents, so that the engine's fuel consumption decreased, which is consistent with the development trend of the car . Coke oven heating compact space, higher spatial thermal strength, high thermal efficiency; within the furnace flue gas and ash products from other effects, easy to achieve precise control of temperature, it is a good product sinter quality; at any pressure within the furnace heating the article under conditions or special atmosphere, the furnace can be obtained so that the flame is difficult to achieve a high temperature above 2000 ℃. In addition, ventilation equipment is simple, does not require tall chimneys. But not too much coke oven section size refractory, or in the section on the furnace temperature distribution is more uneven than the flame furnace, coke oven and thus unfavorable sales of sintered refractory large, thick-walled and other products, and the production is less . In addition, electric components consumption, a subsidiary responsible for electrical equipment, and some electric components to be used in a protective atmosphere, electricity is more expensive and so on. Thus, for some production, a wide range of firing temperature, no special requirements for the material can be used flame atmosphere kiln firing. Which house refractory _ shangzhuang Refractories (certified) _ Guilin refractory provided by Zhengzhou City shangzhuang Refractories Limited. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) is Zhengzhou, charge, flux leader, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness guidelines, and satisfy customer needs. In shangzhuang refractory leadership with the staff warmly welcome all inquiries negotiations to create shangzhuang Refractories a better future.