Linyi Public Li Xin Machinery Co., Ltd. is the design, production, processing, marketing as one of modern science and technology enterprise, the use of advanced international casting today (EPC) of a negative real casting process to produce more material casting temperature resistance corrosion castings, abrasion resistant castings, steel castings and other antioxidant. Casting Process Inspection casting production process, many variable factors, heat-resistant steel suppliers should be controlled in accordance with HB 5343-1994 "casting process quality control" strict quality, in order to ensure the quality of castings. Testing instruments, equipment should be regularly tested. Inspectors are required to hold licenses for employment. 3.2.1 Quality Castings test items are divided into external and internal quality. External quality including surface roughness, dimensional tolerances, weight tolerances, surface defects, and clean up state, the internal quality of the mechanical properties, chemical composition, microstructure, and pressure tests include internal defects. Linyi Public Li Xin Machinery Co., Ltd. is the design, production, processing, marketing as one of modern science and technology enterprise heat-resistant steel manufacturers, using the current international advanced casting (EPC) a negative real casting process to produce more material high temperature castings, castings corrosion resistance, wear resistance castings, steel castings and other antioxidant. Production process and quality in a leading position, with metal spectrometer, and other advanced detection equipment. 3.2.3.1 fracture cast microstructure examination will cut heat-resistant steel castings, visually or 5x magnifying glass casting section whether the defect can be X-ray fluoroscopy when needed. 3.2.3.2 low magnification inspection does not exceed 20 times the magnifying glass sample section, check the internal main pinholes, loose, slag, cold shut, crack, Q / ZX 12.203.3 - 2001 3 patterns and other defects. 3.2.3.3 high magnification inspection of castings with a powerful microscope to check the internal organization, our products generally do not have this test heat-resistant steel wholesale, except for special needs. Linyi Public Li Xin Machinery Co., Ltd. is the design, production, processing, marketing as one of modern science and technology enterprise, the use of advanced international casting today (EPC) of a negative real casting process to produce more material casting temperature resistance corrosion castings, abrasion resistant castings, steel castings and other antioxidant. First, there are burrs on irregularly shaped castings name and appearance of defects classified more than 14 meat castings, Phi seam or protruding parts. 15 water shortage due to the casting of molten metal is not completely filled cavity lack of meat produced. Casting shape and size 16 pattern deformation caused by shrinkage stress inconsistent. 17 gate burrs from the mouth while playing abrasive burrs. Heat-resistant steel castings, heat-resistant steel, Public Li Xin Machinery Company E from 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 congregation Li Xin Machinery Company E and you hand in hand into the brilliant, for a better future!