1128 浏览【概要描述】 A reducer is a type of pipe fitting used for pipe diameters. The commonly used forming processes are shrinkage compression, expansion compression, or shrinkage plus expansion compression. Stamping can also be used for certain specifications of reducing pipes.1. Reduction/expansion forming: The reduc
A reducer is a type of pipe fitting used for pipe diameters. The commonly used forming processes are shrinkage compression, expansion compression, or shrinkage plus expansion compression. Stamping can also be used for certain specifications of reducing pipes.
1. Reduction/expansion forming: The reduction forming process of the large and small ends involves placing a tube blank with the same diameter as the large and small ends into the forming die, and pressing it along the axial direction of the tube blank to make the metal move along the mold cavity and shrink into shape. According to the size of the reducer, it can be divided into one press forming or multiple press forming.
2. Stamping forming: In addition to using steel pipes as raw materials to produce large and small heads, some specifications of large and small heads can also be produced using stamping forming technology using steel plates. The shape of the stamping die used for stretching is designed based on the internal surface size of the head, and the steel plate after cutting is stamped and stretched into shape using the stamping die.
Before bonding the small end, dry cloth should be used to wipe the socket side and the outer side of the socket. When there is oil stains on the surface, acetone should be used to wipe it clean. The following points should be noted:
1. Control caliber: DIN standard (DN10-DN150), 3A/IDF standard (1/2 "-6"), ISO standard（ Ф 12.7- Ф 152.4);
2. International industrial standards: DIN, ISO, SMS, 3A, IDF, etc;
3. Product material: stainless steel 304, 316, 316L;
4. Quality and purpose: The large and small heads are treated with high-end polishing equipment both internally and externally to meet the surface precision requirements; This product is suitable for industrial fields such as dairy, food, beer, beverages, pharmaceuticals, cosmetics, etc;
5. External processing: non-standard products can be processed according to user requirements through drawings and samples;
6. Connection method: clamp (quick installation) type, welding type, thread (union) type.
Note that the large and small ends are also suitable for pipe diameter reduction in the environmental protection and dust removal industry. They are generally made of steel plates rolled, cut, and welded, with varying pipe diameters. The materials are generally hot-rolled coils, which are very well applied and can save costs. Due to the characteristics of stress distribution, the bending moment generated by the area pressure difference between the large and small ends of the reducer causes the phenomenon of relative opening at the large end and relative contraction at the small end.