Hebei Chiho tube industry; concentric reducer (concentric size head) does not produce corrosion, pitting, corrosion or wear and tear in the industry can fully play a good role and performance. Concentric reducer (concentric size head) show in certain industries and sectors important role and performance, display certain advantages and characteristics in use, one concentric reducer or metal for building materials in the highest material strength. Concentric reducer (concentric size head) resistance of air, steam, water and other corrosive medium and weak acid, alkali, salt and other chemical etching medium corrosion of steel. Also known as acid-resistant stainless steel. Practical applications, often the weak resistance corrosion medium corrosion of steel called concentric reducer, and the chemical resistance of steel known as acid corrosion of steel. As the two differences in the chemical composition, the former does not necessarily chemical resistance corrosion, while the latter generally have not rust resistance. concentric reducer (concentric size head) of reduced diameter forming process is the same diameter as the diameter pipe big end of the tube into the forming die, by pressing the tube along the axial direction of the metal along mold forming chamber movement and contraction. Depending on the size reducer adjustable, divided into one or more press-forming press forming. Expanding forming concentric reducer is to use less than the diameter of the tube diameter pipe big end, along with the inner tube inner diameter expanding die forming. Concentric reducer (concentric size head) expanding process mainly to solve easily adjustable too large diameter pipe formed by necking the case of steel diameter pipe manufacturers, sometimes need to materials and products forming the expanding and necking The method used in combination. In necking or expanding deformation pressing process, depending on the material and adjustable, to determine the use of cold or hot. Under normal circumstances, maximize the use of cold, but for many adjustable serious situation caused by hardening of the wall thickness of partial thickness of the case or alloy material should be used hot. Chiho Hebei Industry 304 concentric reducer size tolerances shall comply with Table 4.2.2-3 of. Reducing the size of the head tube, also known as steel diameter pipe size head for pipe connection of different sizes, in general it points Two pipe concentric reducers and eccentric reducers, reducer when erected after the two-port is projected concentric circles, it is called concentric reducer, eccentric reducer and a projection is within the small circle cut in .304 manufacturing process of concentric cylindrical head of the easiest to use and the thick tube as a blank, and expand one end with an equal diameter or thickness of the tube as a blank steel-diameter pipe, narrow end of the aperture can be. Whether flaring or necking, it is generally used to suppress mold. The current domestic commonly used progressively eccentric mold pressing eccentric reducer produced by this process three or more eccentric reducer, eccentric small head end will have a serious gap in the inner wall from the tumor, uneven thickness and oval phenomenon. When truncated by a truncated concentric reducer eccentric reducer instead of the resulting structure, because oblique section is not round but ellipsoidal surface will exist between the wrong end and the straight edges of the problem can not be fully engaged. If a new pressing process, that is, first mold pressing of a concentric concentric reducer, then press into good concentric reducer eccentric pressing mold to the desired integral eccentric reducer, its inner and outer surface smooth supply of steel-diameter pipe, head smooth, uniform thickness, roundness qualified, the use of less carbon-diameter pipe diameter pipe steel pieces _ _ Hebei Chiho Chiho by Hebei Industry Co., Ltd raw materials. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) strong, credible, Cangzhou in Hebei forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Chiho into the brilliant and you work for a better future!