How Are Stainless Steel And Alloy Stamping Elbows Formed

Do you know how stainless steel or alloy stamping elbows are formed? Here are the detailed methods for you:

1. Bending method: There are three commonly used methods, one is called stretching method, another is called stamping method, and three roller methods, with 3-4 rollers, two fixed rollers, and one adjustment roller. Adjust the fixed roller spacing, and the finished pipe fittings are bent.

2. Bulging method: One is to place rubber in the tube, compress it with a punch on the top to make the tube bulge out; the other method is hydraulic bulging forming, filling liquid in the middle of the tube, and the liquid pressure bulges the tube into the required shape. Most of the production of corrugated pipes uses this method.

3. Forging method: Use a forging machine to punch out the end or part of the tube to reduce the outer diameter. Commonly used forging machines are rotary, connecting rod, and roller.

4. Rolling method: Generally, no mandrel is used, which is suitable for the inner round edge of thick-walled tubes. Place a core in the tube, and push the outer periphery with a roller for round edge processing.

5. Punching method: Use a taper core on the punch press to expand the pipe end to the required size and shape.

The forging process of punching a through hole or a non-through hole on the blank of stainless steel pipe fittings is called punching. The blank must be upset before punching to minimize the punching depth and make the end surface flat. Since the local deformation of the forging blank is large during punching, the blank should be heated to the initial forging temperature in order to improve plasticity and prevent cracking. To determine the correct hole position, a trial punch should be made first. That is, first use a punch to gently punch out the hole position dent, and then check whether the hole position is correct. If there is a deviation, it can be tried again and corrected. In order to facilitate the removal of the punch, first remove a little coal powder into the dent, and then continue to punch to 2/3~3/4 of the thickness of the blank. At this time, it should be noted that the punch is perpendicular to the anvil surface. Generally, forgings use the double-sided punching method, turn over the forging bad material after punching, and then punch the hole through from the reverse side. For thinner workpieces, single-sided punching can be used. When punching on one side, the punch should be made.

The wear of Stainless Steel Weld Elbow has always been a factor affecting production. With the continuous development of technology, materials have also appeared successively, such as cast stone, cast steel, alloy, centrifugal casting composite ceramics and other materials. Alloy stamping elbows are not afraid of weak corrosive media such as air, steam, water and chemically corrosive media such as acid, alkali and salt. In practical use, steel that is not afraid of weak corrosive media is often called stainless steel stamping elbows, and steel that is not afraid of chemical media is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not afraid of chemical media corrosion, while the latter is generally stainless. From the design stress alone, the alloy stamping elbow has good pressure resistance. However, due to various factors, the actual wall thickness of the floor heating pipe is generally , and under this wall thickness, all kinds of pipes can meet the needs of floor heating, and the national standard alloy stamping elbow pipe is not afraid of pressure. Advantages; thermal conductivity: The pipes used for floor heating need to have good thermal conductivity, low temperature resistance to thermal shock, and good low temperature shock resistance.

Alloy stamping elbow, good flexibility, not afraid of heat, its performance is higher than other plastic pipes. Simple installation, good thermal conductivity, suitable for floor heating system, recyclable. Alloy stamping elbow pipe has excellent impact strength, can be hot-melt welded and mechanically connected, better than PB-PP-R thermal conductivity. Long-term pressure resistance, only from the design stress, national standard alloy stamping elbow pressure resistance is good. However, due to various factors, the actual wall thickness of floor heating pipe is generally 2mm. Under this wall thickness, all kinds of pipes can meet the needs of floor heating, and the advantage of alloy stamping elbow pipe not being afraid of pressure is not shown.