Reducer decorated capitulum is one of the chemical pipe fittings, used for two different diameter of the connection. Is divided into concentric reducer and eccentric reducer.
Stainless steel reducer according to certain standards, and in the production process for production, ensure the production of the reducer can play an important role in the field of a certain industry and performance, can give full play to the role and value in the industry. Reducer in production need to use production standard is as follows:
1, control diameter: DIN standard (DN10-6), 3 a/IDF criteria (1/2 “to 6”), ISO standard (12.7-152.4 Ф Ф);
2, the international industry standard: DIN, ISO, SMS, 3 a, IDF, etc; 3, the product material: stainless steel 304, 316, 316 l.
Reducer of forming hole diameter is less than reducer big end diameter of the tube billet, used in die forming along the tube billet diameter hole enlargement. Hole enlargement technology mainly to solve the reducer in the variable diameter is larger not easily by reducing forming, sometimes according to the requirements of the materials and products forming, expanding and reducing method of combination. In addition to the use of steel tube as raw material to produce reducer, the part of the specifications of the reducer can also be used steel plate stamping forming technology is adopted to improve the production. Drawing die shapes used by reference to reducing tube surface size design, use after blanking punching die, stamping steel stretch forming. In the process of reducing or expanding deformation, according to different materials and variable diameter, determination by cold pressing and hot pressing. Under normal circumstances, as far as possible by cold pressing, but the multiple variable diameter and cause serious work hardening of the thick or alloy steel, wall thickness of materials appropriate USES hot pressing.Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)