Elbow manufacturer's pipe fittings are economical to use
Elbow manufacturers mainly produce various types of pipe fittings, such as elbow, size, tee, pipe cap, head, flange and other pipe fittings. The advantages of the above pipe fittings are mainly good thermal insulation, because the carbon steel elbow material thermal conductivity is low, the thermal conductivity of 20 facility degrees is 0. Good corrosion resistance of carbon steel elbow, carbon steel elbow can be durable corrosion of a variety of chemical media, with excellent acid resistance, alkali resistance, corrosion resistance, no rust, no corrosion, no electrochemical corrosion.
Carbon steel elbow is mainly divided into seamless elbow, straight seam elbow and welding elbow. Seamless elbow is mainly used in a pipe bend, which accounts for 80% of all pipe fittings used in the pipeline system. In the same city, different materials or wall thickness of the elbow to choose different forming process. Carbon steel elbow manufacturers for seamless elbow forming process hot push, stamping, extrusion, etc.
The specific production method is: hot pressing elbow is the pipe after heating with common equipment processing shape, hot cutting heating to the critical temperature above, after a period of heat preservation soon into the quenching agent, so that its temperature is reduced, faster than the critical cooling rate cooling method produced by the elbow.
Treatment method quenching: quenching is above the critical temperature of the elbow, heat preservation for a period of time, and then quickly put into the quenching agent, so that the temperature suddenly reduced, faster than the cooling speed of Ling sister cooling, and get the heat treatment method. Quenching can increase the strength and hardness of steel, but to reduce its plasticity, quenching commonly used quenching agents are: water, oil, alkali water, and sample hot melt, etc.