What are stamping elbows?

‌A stamping elbow is a connecting pipe fitting used for pipeline installation. It is mainly used to connect two pipes with the same or different nominal diameters so that the pipeline can be turned at a certain angle. ‌ Stamped elbows are made by stamping, which does not require cutting and scrapping, consumes less material, and does not require other heating equipment. Therefore, it is a material-saving and energy-saving processing method. ‌

Features and advantages of stamping elbows:

A stamping elbow is a pipe elbow, and its manufacturing process is to process metal sheets through stamping. Compared with traditional pipe elbows, stamping elbows have the following advantages:

‌1. High strength‌: The cold deformation hardening effect of the material during stamping makes the strength and rigidity of the stamped parts higher.
2. Stable quality‌: Since the mold ensures the size and shape accuracy of the stamped parts and does not damage the surface quality, the quality of the stamped parts is stable and the interchangeability is good.

3. ‌Material and energy saving‌: No chips are generated during the stamping process, the material consumption is low, and no other heating equipment is required.

4. Good pressure resistance: Since the stamped elbow is made of metal sheet, its pressure resistance is better than that of traditional cast pipe elbows.
5. Compact structure: The bending part of the stamped elbow is formed as a whole with the straight pipe part, and its structure is more compact than that of traditional pipe elbows.
6. Light weight: Since the stamped elbow is made of metal sheet, it is lighter than traditional cast pipe elbows.
7. Easy installation: The stamping elbow has a compact structure and light weight, so it is more convenient during installation.

Material and standard:
Stamping elbows can be made of carbon steel or stainless steel. Carbon steel stamped elbows usually contain a higher carbon content, resulting in high hardness and strength, but low plasticity. Stainless steel stamped elbows are not easy to rust due to their corrosion resistance and are often used in environments that require corrosion resistance.

Production process of stamping elbows:

Stamping elbows are made of a sheet of the same material as the pipe, and a stamping die is used to stamp it into a half-ring elbow, and then the two half-ring elbows are assembled and welded. The production process of stamped elbows mainly includes the following steps:
1. Making molds: First, you need to make molds for stamped elbows.
2. Sheet cutting: Cut the metal sheet into trapezoids according to a certain size.
3. Stamping: Put the cut metal sheet into a punch press for stamping.
4. Welding: Weld the stamped elbow with the straight pipe part.

5. Surface treatment: Surface treatment of the welded elbow to give it a certain corrosion resistance.

What are the process characteristics of stamping elbows?

1. Stamping relies on stamping dies and stamping equipment to complete the processing. The high-speed pressure must reach hundreds or even thousands of times per minute, and each stamping stroke may get a stamping part. Therefore, the production efficiency of stamping processing is high, and the operation is convenient, and it is easy to realize mechanization and automation.

2. Stamping generally does not generate chips and fragments, the material consumption is less, and no other heating equipment is required. The cost of stamped parts is low, so stamping is a material-saving and energy-saving processing method.

3. Stamping can produce parts with a large size range and complex shapes, such as stopwatches as small as clocks, longitudinal beams of automobiles, covers, etc., plus the cold deformation hardening effect of the material during stamping, the strength and rigidity of the stamping are relatively high.

4. During stamping, the mold ensures the size and shape accuracy of the stamped parts, and generally does not damage the surface quality of the stamped parts. The life of the mold is generally long, so the quality of the stamping is stable, the interchangeability is good, and it has the characteristics of "exactly the same".

Generally, the higher the carbon content in the stamped elbow, the greater the hardness and the higher the strength, but the plasticity is lower. It mainly refers to steel whose mechanical properties depend on the carbon content in the steel, and generally does not add a large amount of alloying elements. It is sometimes also called plain carbon steel or carbon steel. Carbon steel is also called carbon steel, which refers to an iron-carbon alloy with a carbon content of less than 2%. Stamped elbows are based on long-term production and have summarized a relatively reasonable and scientific new experience in many failures, adding a certain amount of rare earth elements to improve the alloy quality of steel. It also plays a role in refining grains; forming a protective film on the surface, adding a certain amount of boron carbide, the hardness can be controlled within the range of HRC45~65, and at the same time solves the contradiction between the hardness and weldability of the wear-resistant elbow, with high wear resistance, and other wear-resistant materials cannot compare with it in practical applications.

Application fields of stamping elbows:

The application fields of stamping elbows are very wide, mainly including the following aspects:

1. Chemical industry: Stamping elbows are widely used in the chemical industry, mainly used in pipeline systems for conveying various chemicals, oil products, etc.
2. Power industry: Stamping elbows are also widely used in the power industry, mainly used in pipeline systems for conveying water, steam and other media.
3. Construction industry: In the construction industry, stamping elbows are mainly used in HVAC, water supply and drainage and other pipeline systems.
4. Food industry: Stamping elbows are also widely used in the food industry, mainly used in pipeline systems for conveying various foods.

Installation precautions:

When installing stainless steel stamping elbows, pay attention to the following points:
‌Sealing‌: Ensure the sealing of the connection to prevent leakage.
‌Valve status‌: The relevant valve should be fully open or fully closed to adjust the flow.

‌Regular inspection‌: Regular inspection and maintenance, and cover the exposed parts when necessary.

Read more: Material selection of pipe elbows or 90 degree pipe elbow