Regeneration and quality control of coated sand as human beings continue to improve environmental protection requirements, coated sand recovery and regeneration becomes more and more important and urgent. The most commonly used method of mechanical recycling and renewable thermal regeneration. The basic principles of mechanical reproduction is the use of high-speed rotors wheels (approximately 3500r / min) and the slow rotation of the rotary frame gap between the (5-10mm) of the old sand friction, in order to achieve the removal of resin and sand surface for the purpose of shaping sand, coated sand factory, the dust generated by the processing temperature through ventilation dust coated sand: The sand coated sand generally refers to hot intensity, long heat time, small high temperature deformation , and not to its high refractoriness. It is through a special formulation technology process (usually when a certain amount of inert materials such as silica sand coated sand mill, high chromium ore, carbonaceous material or other inert materials, etc.), to produce a superior high temperature performance and integrated casting The new coated sand properties. High temperature, high strength, low inflation, low gas, slow gas evolution and other characteristics. Especially for complex thin-walled precision iron castings (such as automotive engine block, cylinder head, etc.) as well as demanding castings (such as container train horn and brakes buffer housing, etc.) production, coated sand, which can effectively eliminate sticky sand, deformation, thermal cracking and porosity and other casting defects in coated sand production areas should be strengthened following two aspects: (1) made of coated sand pollution, mainly from the following aspects: ① reduce the amount of resin and curing temperature; ② coated sand to improve the overall performance, especially in high temperature performance; research non-polluting alternatives to phenolic resin ③ strengthened;. (2) increasing the regenerative capacity of coated sand coated sand customers, coated sand, provided by Qingdao Qingdao Heng Heng Machinery Co. Qingdao Heng Machinery Co., Ltd. (www.thjidian.com) strong, credible, in Qingdao, Shandong 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!