Stamping elbow and can call the steam pipe elbow, heat pipe elbow, it is the same as the pipe material of sheet in stamping die stamping into half a piece of ring elbow, then two and a half ring bend group for welding. Due to the different welding standards of various pipes, usually the semi-finished products are manufactured according to the group, and the site construction is welded according to the weld grade of the pipeline. Therefore, it is also known as the two-part welding elbow.

The stamping elbow is used to press the sheet metal with the same material of the pipe material into half a circular bend, and then the two half ring corners are formed for welding. Due to the different welding standards of various pipes, usually the semi-finished products are manufactured according to the group, and the site construction is welded according to the weld grade of the pipeline. Therefore, it is also known as the two-part welding elbow. Stamping elbow processing is by means of conventional or special equipment of the power, the deformation of sheet metal in the mould is directly force and deformation, thereby gaining a certain shape, size and performance of the production technology of product parts.

The processing of the punching elbow is the power of the conventional or special punching equipment, which can directly deform and deform the plate in the mold, thus obtaining a certain shape, size and function. Sheet, mould and equipment are three parts of stamping elbow. Stamping is a metal cold deformation process, so it is called cold stamping or sheet metal stamping.

Because of the excellent properties of manganese steel bearing impact, extrusion, material wear and so on, it is usually used in the concrete conveying pipeline, and the mud impact is stronger. Nickel alloy steel quality bend are usually used in high concentration of oxidizing acid (nitric acid, sulfuric acid) at room temperature in the pipeline, but in reducing acid (hydrochloric acid, thin sulfuric acid, etc.) of severe corrosion in the pipeline will be, unless the hydrochloric acid concentration is very low;

Advantages of punching elbow:

1. Temperature resistance, good flexibility and heat resistance, and its performance is higher than other plastic pipes. The installation of simple thermal conductivity is suitable for floor heating system, recyclability.

2. The stamping elbow of P national standard has its excellent impact strength, thermal welding and mechanical connection, which is superior to the thermal conductivity of PB - PP- R.

Processing technology of stamping elbow:

1, stamping and processing of high production efficiency, and easy to operate, easy to realize mechanization and automation, this is because the stamping is rely on die and stamping equipment to complete the processing, ordinary press stroke times per minute can reach dozens of times, high-speed pressure can reach more than hundreds of times or even one thousand times per minute, and every time stamping stroke can get one stamping parts.

2. The stamping generally has no chip shavings to produce, the materials are consumed less, and no other heating equipment is needed. Therefore, it is a kind of province material, energy-saving processing method, and the cost of stamping parts is low.

3, stamping processing the size range is larger, more complex shape parts, such as small to watch the stopwatch, big to auto longeron, etc., covering parts and stamping material hardening effect of cold deformation, the strength and stiffness of stamping was high.

4, due to the size and shape of mold to ensure the stamping precision, and generally does not destroy the surface of the stamping parts quality, and the life of the mould are long, so the stamping quality is stable, good compatibility, has the characteristics of "the same".