dedicated to refinement of every single fittingproducing more than 2000 types of fittings1the short casting process (blast furnace + electric stove)suns foundry industry is the national demonstration base of the short casting process technique (blast furnace + electric stove), the only enterprise in china who uses directly the blast furnace molten iron to cast pipes. compared with other companies in this industry, it saved 147kilos coke for every one ton pipes. in this way, it’s lower cost, less carbon emission, more efficient and environmental friendly.2tempering and tempering with electric stovethrough medium-frequency electric stove and spectrum analysis, it ensures casting temperature deviation within the range of ±10℃ and the various elements such as such as c, si, p, s, & mn, kept within ±0.02%, thus guarantees the tensile strength of fittings≥150mpa. (chemical composition determines mechanical properties)3core-making with pre-coated sandsuns possesses 100 professional core-making machines which can produce 20,000pcs cores every day. fine surface of core makes the inner wall smooth without burrs which guarantees smoother drainage.4mechanized vertical molding linemolding line adopts advanced mechanical-hand core-making technique which allows high efficiency production. intelligent memory function could achieve the automatic optimization according to different fittings during the casting process which ensures the percent of pass and the optimal casting effect for every single fitting. molding, core setting, casting and shake-out are all integrated into one system, which enables us to produce 240 boxes of fittings per hour, and 30,000 pieces of dn38-dn300 fittings per day.5shot blastingit adopts continuous shot blasting through mesh belt to remove impurities on internal and external surfaces of pipe fittings, in order to expose the nature of the iron, improve adhesiveness of the coating, prevent the corrosion and prolong its service life.6polishinginternal and external walls of fittings are thoroughly polished with 3 different kinds of polishing tools. bolt holes on a-type and b-type flanges are made precisely with the discrepancy of hole size no greater than 0.5mm.7coatingemploying automatic coating technique, suns is capable of providing products with asphalt, epoxy and electrostatic powder coatings according to different demands form domestic and foreign customers.8inventorysufficient inventory of iso6594, gb/t12772, en877,astm-a888 products to guarantee timely delivery.to make building drainage system smootherto make city life bettersuns泫氏铸业 微信号：suns813扫描或长按识别二维码了解更多
