Casting machine equipment in a large proportion of liquid molding parts, machine tools, internal combustion engines, mining machinery, heavy machinery in liquid molding parts from 70% to 90% of the total weight; 50% to 70% in the car, tractor; accounting for 40% to 70% in the agricultural machinery. Liquid molding process can be so widely used, because it has the following advantages: (1) can be manufactured lumen rough shape very complex. Such as various cabinet, machine bed, cylinder block, cylinder head and so on. (2) process flexibility, wide adaptability. The size of the liquid molding parts virtually unlimited, its weight by a few grams to several hundred tons, and its wall thickness by about 0.5mm to 1m. The industry who can melt into liquid metal material can be used for liquid molding. For cast iron poor plasticity, is the only liquid molding process for producing blanks or parts thereof. (3) liquid-form lower cost. Direct use of waste liquid molding parts and chips, lower equipment costs. Meanwhile, the liquid molding pieces small allowance, saving metal. There are many method of solidifying casting. Casting in the solidification process, on which the cross section is generally divided into three zones: 1- solid phases 2- solidification zone 3- liquid region on solidification zone width solidification zone is larger, and so divided solidification mode. First, the intermediate solidification: between coagulation and mushy layer by layer solidified alloy solidification between majority. Second, layer by layer solidification: pure metals, eutectic alloy during solidification without coagulation zone, section liquid, solid two-phase clearly separated by a boundary, with the temperature drop bucket wheel guard ports, increasing the solid layer, liquid layer declining, direct center. Thirdly, mushy solidification: alloy crystallization temperature range is very wide, within a certain period of time in the coagulation threshold wheel guard, there is no solid casting surface layer solidification zone throughout the cross-section of the wheel guard Hom manufacturers, first paste wheel guard Hom price, after cured. Experts said that factors that affect the way solidification summary: First, the casting temperature gradient. Alloy crystallization temperature range is constant, the solidification zone width depends on the inner and outer layers of the casting temperature gradient. The smaller temperature gradient, the more wide solidification zone. (Inside and outside temperature, and cooling fast, narrow solidification zone). Second, the alloy crystallization temperature range. Small range: narrow solidification zone, the more inclined solidified layer by layer. Eg: sand casting, low carbon steel solidified layer by layer, high carbon paste solidified wheel guard Hom supply, retaining wheel Hom, Chen Hua Chen machinery provided by Qingdao China Machinery Equipment Co. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery and you hand into the brilliant, for a better future!