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 the increasing amount of coated sand, many manufacturers have reached several thousand tons more than the amount of research coated sand used sand reclamation and reuse has been of great practical significance, not only can improve the performance of coated sand, and but also save costs, reduce waste materials on the environment pollution-coated sand by Dr. Ke Luoning Germany during World War II invention, the process is powdered thermosetting phenolic resin sand mechanically mixed with the original, curing heating . Later developed into a thermoplastic phenolic resin plus latent curing agent (methenamine) and lubricants through a certain coating process formulated as coated sand coated sand supply, when heated coated sand coated sand surface resin melted at 乌洛托 coated sand product decomposition of methylene effect, the molten resin by a rapid transition to a linear structure of the body structure is not melted, so that the coated sand curing. Century has come, this is a modern high-tech rapid development and product quality, environmental protection era of fierce competition. People for their living environment have become increasingly demanding, coated sand, all enterprises should follow 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 resin is expensive, coated sand resin sand, 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 the increasing amount of coated sand, many manufacturers have reached several thousand tons more than the amount of research coated sand used sand reclamation and reuse has been of great practical significance, coated sand companies, which not only improves coating Sand's performance, but also to save costs, reduce waste materials on the environment pollution-coated sand coated sand companies _ _ 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!