A vibrating sand, high strength, low gas, low expansion; 2, lax, good casting surface finish; 3, can not afford to shell layer, good thermal stability, good thermal conductivity, good liquidity coated sand regeneration equipment, casting surface smooth; 4, high strength, high temperature, low inflation, good mold release, anti-sticky sand is good; 5, the shell is not uniform shelling, fast curing; quality coated sand core In addition to the geometry, dimensional accuracy, surface quality and shell thickness of the sand core, the sand core but also by observing the color of cured core sand test case. The normal situation is that the appearance of the sand core should be uniformly brown, center yellow, when burnt brown and even black exterior rendering, insufficient hardening look yellow, white center with Sand cast iron main process parameters: Iron type wall thickness 25mm, covered sand thickness 5-8mm (for small bore ductile iron crankshaft); iron-type quality in general is about five times the mass of castings; iron ore ratio (casting quality and the consumption ratio of the amount of coated sand) 6-7. Iron-type cladding sand molding methods (ie sand overlying obtained) has shot two kinds of sand molding and compression molding coated sand reclamation plant, the former is currently used more, for ordinary coated sand coated sand, particularly suitable mass production; the latter applies to single-mass (iron type size up to several meters in length) of the crankshaft, covering a variety of fluidized sand Sand. The former sand shot selection pressures related to the thickness of the coated sand, sand shot when the pressure is 0.2-0.6MPa, coated sand thickness is 4-5mm, its densest coated sand recycling equipment manufacturers, coated sand regeneration, Qingdao days Heng Heng Machinery Co., Ltd. is provided by Qingdao. Qingdao Heng Machinery Co., Ltd. (www.thjidian.com) strong, credible, Shandong Qingdao Cleaning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qingdao Heng and you hand into the brilliant, for a better future!