The 90-degree elbow accounts for the largest share of all pipe fittings used in the pipeline system, about 80%. Usually, different forming techniques are selected for elbows with different materials or wall thickness. At present, the 90-degree elbow forming techniques commonly used by manufacturers include hot pushing, stamping, and kneading. The deformation characteristic of the 90-degree elbow is to determine the diameter of the tube blank according to the rules of the volume unchanged before and after plastic deformation of the metal data. The diameter of the tube blank used is smaller than the diameter of the elbow. The metal flows to compensate for other parts that are thinned due to the expansion of the diameter, and then an elbow with a uniform wall thickness is obtained.

The 90-degree elbow is a kind of pipe fitting used for turning of pipes. Among all the pipe fittings used in the pipeline system, the largest share is about 80%. Generally, different forming techniques are selected for elbows with different materials or wall thicknesses. At present, the 90-degree elbow forming techniques commonly used by 90-degree elbow manufacturers include hot pushing, stamping, kneading and other technologies.

The cost of 90-degree elbow restraint is proportional to the mouth of the butt-weld elbow. The larger the diameter of the butt-welded elbow, the higher the cost of pressing the tablet. The constraints on the special tires are finally formed, and the larger the caliber, the larger the mold, and the larger the caliber, the order quantity of the butt welding elbow is also very small.

The 90-degree elbow, also known as constrained elbow or seamless elbow, is formed by constraining in a special mold with excellent carbon steel, stainless acid-resistant steel and low alloy steel seamless pipe. The stamped elbow is a stamped and welded elbow. It is made of a plate made of the same material as the pipe and punched into a half-shaped ring elbow with a stamping die, and then the two half-ring elbows are assembled and welded.

The pressure resistance function of the 90 degree elbow is best to withstand temperature and pressure, with good flexibility and heat resistance, and its performance is higher than other plastic pipes. The device is simple and has good thermal conductivity and is suitable for the floor heating system with recyclability. Pushed elbow fittings have excellent impact strength, hot melt welding and mechanical connection, which is superior to the thermal conductivity of PB-PP-R. For long-term pressure resistance, only from the perspective of planning stress, the pressure resistance of elbow fittings is the best.

90-degree elbows are produced and manufactured in accordance with certain technologies and standards during production and manufacturing in practice, to ensure that good values ​​and effects can be demonstrated in practical work, and certain characteristics and values ​​can be fully utilized in practical use In accordance with normal technical methods, exporting to different countries and regions can promote the rapid development and progress of China's economy, and it is of primary significance to producing companies.