EPC, solid casting and sand casting similar defects - surface perforations, depressions and lost foam casting textured surface pores in addition to the previously talked about, Zou leather, carbon, light carbon, sticky sand endures, will the same occurs with sand perforations (slag hole, sand hole, shrinkage), reduced pit (dents) and other defects and unique texture and deep defects such as moiré. Causes 1) slag hole looks like liquid metal into the slag and solid phase cleavage product can not be discharged and accumulated, floating in the surface of the heat-resistant cast steel castings prices, after blasting, casting surface residue will still have irregular marks holes. 2) pouring sand hole, dry sand into the liquid metal, and finally gathered the casting surface, its particulate distribution after shot blasting, sand is not removed, the casting surface sand inlays resistant steel, if the spray off the sand , the surface leaving the eyelet. 3) Shrinkage and shrink pits (depressions). Hot zone casting and ingate and riser connections, since the feeding poor heat-resistant steel manufacturers, forming shrinkage, shrinkage defects. Most casting thick feeding insufficient due form shrinkage (recessed), often appear in the final solidified on a large surface. 4) textured, moire. Poor integration between the appearance of the surface of the beads, groove gap junction coarse and fine lines and deep beads moiré (severe form of bead-like surface). The mesh pattern of tiny textured, mainly because of poor quality bead appearance, poor adhesion, especially when access foam panels (type) material is processed into appearance, rough surface coating penetration during heat treatment industrial furnace parts, moire surface, textured copy the paint layer, the casting surfaces after pouring these deficiencies. Linyi Public Li Xin Machinery Co., Ltd. is the design, production, processing, marketing as one of modern science and technology enterprises, producing more material high temperature, corrosion, abrasion, oxidation alloy steel castings. The products are widely used in metallurgy, mining, chemicals, shipbuilding, paper, machinery, military and other industries, the company can according to user needs design, manufacture a variety of materials dedicated foundry products: floor furnace, furnace tank, box, blades, axes , linked with, spreader, baskets, trays, grates, crucible. The company will be a stable product quality, quality of service and dedication to new and old customers work together for a better future! EPC process - look to make foam Shuo appearance in addition to surface quality of the casting decision, but also directly in contact with the molten metal, participate heat, mass, and momentum transfer complex physical and chemical reactions, the intrinsic quality of the casting is also important influence, must attach great importance to the appearance of the material and manufacturing quality. For some purchased from the plastics plant look like a factory, we must look good quality customs inspection. Heat-resistant steel, heat-resistant steel China, Chung Li Xin Machinery Company (certified merchants) by the Linyi Public Li Xin Machinery Limited. Linyi Public Li Xin Machinery Co., Ltd. (www.lyzlx.com) strong, credible, in Linyi, Shandong casting industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the public Li Xin Machinery Company into the brilliant and you work for a better future!