Manufacturers of high quality seamless elbow, Shaanxi seamless pressing elbow. Bo Hang seamless pipe factory is your wise choice for hot elbow. I plant with the most advanced seamless elbow pressing equipment and perfect inspection and testing instruments, with a high-quality professional workforce, with the ability of independent research and development of new products. The factory to excellence, pioneering and innovative spirit of commitment elbow product development and innovation. Main seamless elbow, hot bending head, welding elbow, elbow thick, large diameter elbow, welded elbow, pressing elbow and other products, welcome new and old customers to contact us for consultation, we will be warm for you! Hot elbow Treatment of specific production methods are: hot bend pipe after heating the molding professional equipment, and then cut heated above a critical temperature, holding time after quickly into the quenchant, its temperature suddenly decreased, greater than critical cooling rate of rapid cooling method made the elbow. One approach: quenching quenching elbow is heated to above the critical temperature, holding time, then quickly put hardening agent, its temperature suddenly reduced to a speed greater than the critical cooling rate of rapid cooling, and access to horse heat treatment method's body imbalance dominated organization. Steel hardened to increase strength and hardness, but to reduce their plasticity. Quench hardening agents commonly used are: water, oil, alkali and salt solutions and the like. Second approach: normalizing normalizing is heated to a hot bend above the critical temperature, so that hot bend all becomes a homogeneous austenite, and then heat treatment in air naturally cooled. In addition to normalizing eliminate hot hypereutectoid mesh cementite elbow, elbow pressing for normalizing hypoeutectoid lattice can be refined to improve the mechanical properties, for less demanding elbow with normalizing instead of quenching process is more economical. Pressing need to change the direction of the pipe elbow for the place, so use is widespread, mainly used in chemical, civil, construction, industrial production and so on. Stamping seamless elbow: in pipeline installation in a common connection with the pipe connecting two nominal diameter pipe the same or different, so make sure the pipe angle turn. Stamping and welding elbow: It is made of the same material of the plate and pipe stamping die stamping elbow into the ring halves, then two half rings were set for welding elbow forming due to various types of pipes of different welding standards, usually. tack by group of semi-finished factory, construction site welding pipe welds according to grade, therefore, also known as the two halves welded elbow. stamping and welding elbow, also known as welded pipe, a plate or strip coiled shape after soldering a steel welded pipe production process is simple, high production efficiency, different specifications, less capital equipment, but the general strength of less than .20 seamless steel since the 1930s, with the rapid development of high-quality steel rolling production and welding and advances in testing technology continues to improve weld quality, welded steel pipe increasing varieties and specifications, and in more and more areas instead of seamless steel tubes welded steel pipe welds in the form of divided Longitudinal and spiral welded pipe.