Europe style for Cast Iron Elbow - Grooved concentric Reducer – Blueocean

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Concentric reducer (concentric reducer) will not produce corrosion, pitting, corrosion or wear. It can give full play to its good role and performance in the industry. Concentric reducer (concentric reducer) plays an important role and performance in certain industries and fields, and shows certain advantages and characteristics in use. Concentric reducer is also one of the strongest metal materials for construction. Concentric reducer (concentric reducer) is a steel that can resist the corrosion of weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt. It is also called stainless acid resistant steel. In practical application, the steel that can resist the corrosion of weak corrosive media is often called concentric reducer, and the steel that can resist the corrosion of chemical media is called acid resistant steel. Due to the difference in chemical composition between the two, The former is not necessarily resistant to chemical medium corrosion, while the latter is generally stainless

The reduction forming process of concentric reducer (concentric reducer) is to put the tube blank with the same diameter as the large end of the reducer into the forming die, and press along the axial direction of the tube blank to make the metal move along the die cavity and shrink. According to the size of reducing pipe, it can be divided into one-time pressing forming or multiple pressing forming. The expanding forming of concentric reducer is to expand the diameter along the inner diameter of the tube blank with an internal die. The expanding process of concentric reducer (concentric reducer) mainly solves the problem that the reducer with large diameter change is not easy to form through reducing. Sometimes, the expanding and reducing methods are combined according to the forming needs of materials and products. In the process of reducing or expanding deformation pressing, cold pressing or hot pressing is determined according to different materials and reducing conditions. Generally, cold pressing shall be adopted as far as possible, but hot pressing shall be adopted for severe work hardening caused by multiple diameter changes, wall thickness deviation or alloy steel materials.