Bimetallic composite technology is becoming more and more widely used in the manufacture of wear-resistant materials. The fundamental reason lies in the high hardness and low toughness of materials with high wear resistance. If the non wear parts of components can be replaced with ordinary materials with high toughness,...
1.Selection and properties of preform materials The mass fraction of ZrO2 in ztap is 40wt%, the particle size is 1 ~ 2mm, and some physical / mechanical properties are obtained. The particle size of the high chromium alloy powder is 50 ~ 100 μ m, and the chemical composition...
Cosworth method is developed by Cosworth research and development company and GKN United Company in the mid-1970s. It is a sand mold low-pressure casting process, widely used in the automobile and aircraft industry. Its typical products are engine cylinder block, cylinder head, etc. The utilization rate of aluminum melt...
Normally , cast method fall into two general categories customarily depends on modeling methods : sand casting and special casting . Sand casting of cast method includes green sand mold , dry sand mold and chemical sclerosis sand mold . Steel casting , iron casting and a majority of...
In order to develop green casting industry in our country, we need to research new casting method, such as old sand regeneration recycle technology with low cost and no emissions. Each year, our country produce more than 30 million tons of casting sand. Some largefoundry enterprises discharge more than...
Different sand mold casting methods call for different casting binders. At present, the organic binder is widely used in foundry industry as casting methods develop with new technology quickly. It has lots of advantages, such as large output, small energy consumption, high surface quality, dimension precision casting, fast speed...