The main problems in China coated sand detection is (1) detection means most companies are not perfect. Basic stay in detecting temperature strength, melting point, particle size and volume of the primary stage of hair; (2) domestic coated sand testing equipment accuracy and stability is not high, the same kind of equipment of different manufacturers use in field conditions, the detected cover Film sand sometimes relatively large difference between the performance indicators, such as room temperature tensile strength can be a difference of 10 kg or more, a difference of 5 ml or more gas evolution. Currently more advanced testing equipment including high temperature coated sand performance tester, send gas meter, hot strength tester coated sand regeneration in coated sand production areas should be strengthened following two aspects: (1) hair cleaner cover membrane sand, mainly from the following aspects: ① to reduce the amount of resin and curing temperature; ② coated sand to improve the overall performance of coated sand production line regeneration, especially high temperature performance; ③ strengthen research non-polluting alternatives phenolic resin; . (2) increase the regenerative capacity of coated sand coated sand coated sand production equipment package recycling has been a subject of concern to the majority of experts coated sand regeneration companies, now coated sand regeneration equipment is expensive and inefficient regeneration Qingdao film sand reclamation, production efficiency of 5 tons / hour of thermal regeneration equipment prices in the 1200-1600 yuan, coated sand regeneration cost 65-90 yuan / ton, so the cost can not be cast for domestic enterprises currently China The main problems are coated sand detection (1) detection means most companies are not perfect. Basic stay in detecting temperature strength, melting point, particle size and volume of the primary stage of hair; (2) domestic coated sand testing equipment accuracy and stability is not high, the same kind of equipment of different manufacturers use in field conditions, the detected cover Film sand sometimes relatively large difference between the performance indicators, such as room temperature tensile strength can be a difference of 10 kg or more, a difference of 5 ml or more gas evolution. Currently more advanced testing equipment including high temperature coated sand performance tester, send gas meter, hot strength tester, coated sand coated sand regeneration regeneration manufacturers _ _ provided by Qingdao Qingdao Heng Heng Machinery Co. 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!