Stainless steel pipe fittings include stainless steel elbow, stainless steel tee, stainless steel four-way, stainless steel reducer, stainless steel pipe cap, etc. They can be divided into socket stainless steel pipe fittings, threaded stainless steel pipe fittings, flanged stainless steel pipe fittings and welded stainless steel pipe fittings according to the connection mode. What are the processing methods for stainless steel parts?
Processing of stainless steel parts
1、 Six processing methods for stainless steel parts:
Stainless steel pipe fittings can be divided into socket pipe fittings, threaded pipe fittings, flanged pipe fittings and welded pipe fittings according to the connection mode. Generally speaking, the treatment methods are as follows:
1. Forging method: stretch the pipe end or part with a swaging machine to reduce the outer diameter. Common rotary forging machines include rotary type, connecting rod type and roller type.
2. Rolling method: put the pipe core into the stainless steel pipe fitting, and press it outside with a roller for round edge processing.
3. Stamping method: use the tapered core on the punch to expand the pipe end to the required size and shape.
4. Bending forming method: there are three common methods, one is called stretching method, the other is called stamping method. The third roller method has 3-4 rollers, two fixed rollers and one adjustment roller to adjust the distance between fixed rollers. Finished pipe fittings are bent.
5. Rolling method: generally without mandrel, applicable to the inner circular edge of thick wall pipe.
6. Bulging method: put the rubber into the tube and press it with a punch to make the tube bulge into shape; The other method is hydraulic bulge forming, which uses liquid to fill the middle of the pipe, and the liquid pressure expands the pipe into the required shape. This method is mostly used in the production of corrugated pipes.
Processing of stainless steel parts
2、 Processing process of stainless steel parts:
1. Blanking
It is the most basic content in the processing of stainless steel parts during blanking, and its role is equivalent to the bricks used for building houses. For different products, the basic sheet metal parts are processed, and then assembled and welded. The cutting plate in blanking is to cut a whole plate through a large stainless steel plate cutter to obtain different parts of the product. Of course, the plate shears can only cut straight strips, so some responsible parts need to be cut. Laser cutting is one of the most popular cutting methods. He can perform various complex cutting according to drawings, including some circles, characters and patterns that can be obtained by laser cutting. For more complex parts, mold forming is required. In addition, some special sheet metal parts need to be bent and grooved.
2. Surface treatment
For some sheet metal workpieces with requirements for stainless steel surface color, surface treatment is a necessary processing procedure. Common surface treatment includes titanium plating, fluorocarbon spraying, painting, etc. After cold plate processing, surface electroplating is generally carried out. After electroplating, no spraying treatment is carried out, but phosphating treatment is adopted. After phosphating treatment, spraying treatment is required. The surface of electroplating plate shall be cleaned, degreased, and then sprayed;
3. Welding
The last process of stainless steel parts processing during welding. The main means of welding are argon arc welding, electric welding and carbon dioxide shielded welding. After the basic parts of sheet metal processing are completed, they need to be spliced to ensure the forming of products. In order to maintain the firmness of products and the splicing of documents without clips, welding is very important. For some products with high requirements, the welding places shall be polished to make the welding points and products perfectly integrated.
Processing of stainless steel parts
The processing of stainless steel parts requires cutting, folding, planing, drilling and laser cutting processes. The common stainless steel processing technologies are wire drawing, sand blasting and sanding. Mirror, color electroplating and coating, including laser, shearing, bending, grooving, stamping, welding, polishing, etc. It is widely used to manufacture corrosion resistant materials, such as parts of chemical industry, pipes, containers, medical equipment, marine equipment, etc.