Elbow manufacturers on elbow price introduction
The price of elbow will sometimes go up and sometimes down with the situation of the market.It also depends on the price of the material.Elbows are divided into long radius elbows and short radius elbows.Elbow manufacturers briefly introduce the production process of stamping elbow: the forming process of stamping elbow is disorderly, the demand is based on different materials and uses for welding, gradually forming under certain pressure.Stamping elbow molding requirements according to the process of must strictly abide by the process of the corresponding process, otherwise produce of stamping elbow quality problem occurs, according to the requirements, a circle shell can be cut into four 90 - degree bend or six 60 degree Angle, the technology used in the production of bend diameter bend diameter ratio greater than 1.5 d with the standard of any large elbow push system,It is an ambitious way of making large elbows.
Elbow manufacturers on the material of the elbow: carbon steel, alloy steel, stainless steel and other materials are commonly used.
Elbow manufacturer to check the quality of butt-welding elbow
When many users buy butt-welding elbows, because there is no testing equipment, this time can only detect the quality of butt-welding elbows from the appearance. The following are several common determination methods.
1. From the surface of the butt welding elbow, the manufacturing process is not standard. Generally speaking, a good butt welding elbow company needs to be careful and careful in the production, and there will be no friction defects.The cross section shape of the fake butt-welding elbow is not uniform, because the manufacturer in order to save materials,
The pressure of the first two rolls of the finished product is too large, and the strength of the steel is greatly reduced, and it does not meet the standard of the external size of the butt welding elbow.The steel composition is uniform, the tonnage of the cold shearing machine is high, the end face of the