Processing procedure of stainless steel capillary

Stainless steel capillary tube is a kind of precision stainless steel tube. It has a wide range of applications. Many people want to know the processing procedures of stainless steel capillary tubes. The main procedures are forming, welding seam leveling and nozzle treatment. Let's understand them one by one.

1. Welding forming

(1) First, the stainless steel strip is rotated and pressed with a roll to warp both ends to prepare for the next step.

(2) Then the roll is rotated to press the steel strip on the basis of the previous step, so that the two ends of the steel are close to the inner cavity of the mold and rolled into a certain circle.

(3) Continue crimping on the basis of the previous step, so that the steel strip is crimped into a shape closer to the circular steel pipe, and the distance between the joints is shortened.

(4) The last process is to roll the steel strip into a round tube and feed it forward, and use an argon arc welding torch to weld the joints at both ends of the steel strip to make it into a round tube.

2. the weld seam leveling

Due to the small diameter of the stainless steel capillary tube, the welding seam leveling technology is also different from conventional pipe fittings. In addition, if you want to form a square tube or other special-shaped tube, it is also drawn through a mold, and external force is applied to the front end of the drawn steel pipe. , Pull the tube blank from the die hole smaller than the section of the blank to obtain the corresponding shape and size.

3. Nozzle treatment

The above process basically meets the production requirements of stainless steel capillary tubes, but some customers need to handle the nozzle, the most common ones are pointed, reduced diameter, flared, flanging, slotting, etc.