Coated sand regeneration equipment offer, coated sand regeneration, Qingdao Heng

Phenolic resin sand regeneration according to the principle that the regeneration of waste sand at high temperatures, can form an oxide of silicon crystal silica sand - quartz in the same structure variant β crystal transition from α crystalline, lower coefficient of thermal expansion of silica sand. Reclaimed sand used, can reduce the casting deformation, burrs and other defects. Coated Sand regeneration of waste sand reclamation equipment company, also makes the surface of the resin film burning sand and silica impurities such as metal oxides peeled improve sand silicon-oxygen bond activity. Improve the coating of coated sand regeneration plant, increase sand strength to prevent the casting sticky sand and pores when the reclaimed sand can replace the original sand coated sand production. Century has come, this is a modern high-tech rapid development and product quality, environmental protection era of fierce competition. People for the requirements of their own living environment of increasingly high, companies should be in accordance with the requirements of environmental laws to organize production. Machinery industry, the foundry industry is a serious pollution, energy consumption, and poor working conditions in the industry. 21st century styling, core technical progress key issues should be developed pollution, less pollution, low production cost, energy-saving materials and labor conditions are good modeling, core processes. Thus, coated sand technology future development direction should be: (1) reducing the coated sand, environmental pollution, the development of low free phenol, low gas, less pollution phenolic resin, protecting the natural environment for human survival. (2) Phenolic resin substitutes. Because phenolic resins are expensive to develop a new type of cheap binder is a priority. (3) further research to improve the rheological and phenolic resins, and constantly improve the reaction resin coating and curing properties. (4) The performance resin synthesis process control, resin macromolecules and small molecules suitable grading also need further research to improve the toughness and resistance to shelling resin. (5) Further study of the old sand reuse. With China's increasing amount of coated sand coated sand regeneration, many manufacturers have reached several thousand tons more than the amount of research coated sand used sand reclamation and reuse has great practical significance coated sand regeneration equipment offer, which It can not only improve the performance of coated sand, but also save costs, reduce waste materials environmental pollution 1, the vibration 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, casting surface smooth; 4, high strength, high temperature, low inflation, good mold release, anti-sticky sand is good; 5, housing layer is not uniform shelling, curing speed; coated sand regeneration equipment offer, coated sand regeneration, 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!