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The size head is also suitable for the pipeline diameter change in the environme

2021-04-24 13:29:20
Reducing pipe is a kind of pipe used for pipe diameter. The commonly used forming process is reducing pressing, expanding pressing or reducing plus expanding pressing. For some specifications of reducing pipe, stamping can also be used.
 
a. Reducing / expanding forming
 
The reducing process of big and small head is that the tube blank with the same diameter as the big end of big and small head is put into the forming die. By pressing along the axial direction of tube blank, the metal moves along the die cavity and shrinks to form. According to the size of reducing pipe, it can be divided into one press forming or multiple press forming.
 
b. Stamping forming
 
In addition to using steel pipe as raw material to produce large and small heads, some large and small heads can also be produced by steel plate stamping process. The shape of the die used for drawing is designed according to the size of the inner surface of the big and small heads, and the blanking steel plate is formed by stamping and drawing with the die.
 
Before the big and small heads are bonded, dry cloth shall be used to wipe the socket side and the outside of the socket. When there is oil on the surface, acetone shall be used to wipe it clean. The following points should be noted:
 
1. Control caliber: DIN standard (DN 10-dn 150), 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-grade polishing equipment to meet the surface precision requirements; This product is suitable for dairy, food, beer, beverage, pharmacy, cosmetics and other industrial fields;
 
5. External processing: according to the user's requirements to map, sample processing of non-standard products;
 
6. Connection mode: clamp (quick installation), welding, thread (Union).
 
Note that the big and small end is also suitable for the environmental protection dust removal industry in the pipeline diameter, generally is made of steel plate rolling cutting and welding, pipe diameter size is different, the material is not uniform
 
Generally, it is hot rolled coil, which is applied very well and can save cost.

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