Stainless steel pipe production process

Production Process of Stainless Steel Tube

Stainless steel pipe refers to stainless steel with an outer diameter of more than 32mm, which is a kind of steel pipe with a long hollow and different cross-section shapes. According to the material, it can be divided into seamless steel pipe and welded steel pipe. Stainless steel is a kind of alloy steel by adding various metals to certain elements such as chromium. It has better corrosion resistance than ordinary steel, therefore, it is widely used in petroleum, chemical, medical, Food, light industry, machinery, instrument, construction and other industries.

First, the roughing process of stainless steel pipe

1. The first step is to cut out the stainless steel blank with flat rotating circular knives on the plate cutting machine.

2. The second step is to cut the stainless steel blank into a stainless steel pipe blank with a circular knife on the steel pipe cutting machine.

3. The third step is to cut the stainless steel pipe blank into semi-finished products with a rotary cutting machine.

4. The fourth step is to process the semi-finished product into a stainless steel pipe with a rounding machine and a grinding machine.

Second, lifting process of stainless steel pipe

1. In the lifting process, first use a lifting machine to clamp the stainless steel pipe, then heat it with a torch. After the heating is completed, use a lifting machine to gently push the stainless steel pipe forward to squeeze out the pipe.

2. The third step is to tap the stainless steel tube at the outlet with a tap and a die. This can make the size of the pipe more accurate and ensure the quality of the pipe.

Third, processing process of stainless steel tube

1. The first step is to use the polishing machine to polish the stainless steel pipe. This step is to make the stainless steel pipe brighter and more beautiful in appearance.

2. The second step is to use the calender to roll and straighten the stainless steel pipe and make it meet the accuracy requirements.

4. The fourth step is to use an edging mill to process the stainless steel pipe on the edging machine and process the stainless steel pipe on the edging machine to make the burr on the pipe surface smaller.

Fifth, testing process of stainless steel pipe

1. The first step is to inspect the size of the stainless steel pipe with calipers to ensure the size accuracy of the stainless steel pipe.

2. The second step is to conduct non-destructive testing on the stainless steel pipe, including eddy current testing and hydrostatic testing.

3. The third step is to check the surface quality of the stainless steel tube with a surface quality detector to ensure the quality of the stainless steel tube.

In conclusion, the production process of stainless steel pipe includes roughing, lifting, processing, testing and other processes. Through the above operation methods, a satisfactory stainless steel tube can be finally produced.

Stainless Steel Tube Production Technology

Stainless steel tube production technology mainly includes cold stretching, cold drawing and hot rolling processes. The selection of production technology must be based on the customers requirements and the characteristics of the material.

1. Cold stretching process: It is suitable for producing thin, thin-walled stainless steel tubes with a thickness of 0.25-6 mm and a diameter of 6-76 mm;

2. Hot rolling process: It is suitable for thick wall and large diameter stainless steel tubes with a wall thickness of 6-60 mm and a diameter of 76-508 mm.

3. Cold drawing process: It is suitable for thin-walled stainless steel tubes with thin walls and small diameters, because the deformation of cold drawing is greater than that of cold stretching, so it is suitable for more complex shapes and more accurate dimensions.

The stainless steel tube production process mainly includes four steps: material selection and inspection, material cutting and beveling, welding and tube production, and quality inspection and finishing.

1.Material selection and inspection: firstly select corresponding stainless steel materials according to the customers requirements and application conditions, and then inspect whether the goods are in accordance with the performance and quality requirements.

2.Material cutting and beveling: Cut stainless steel materials of different specifications into short sections according to the needs, and then beveling the edges of the blanks.

3.Welding and tube production: Weld the blanks into low pressure welding pipes or high pressure welding pipes, and then carry out product forming through cold stretching, cold drawing and hot rolling process.

4. Quality inspection and finishing: Inspect whether the dimensions, surface defects and mechanical properties of the product meet the requirements, and then carry out the corresponding surface treatment such as polishing, electroplating and pickling.

Stainless steel tube production technology has become an important part in the manufacturing industry. During the entire production process, we need to carry out strict inspections and ensure that the quality of the product meets the requirements.