Cangzhou Bohai Tube Co. specializing in the production of carbon steel elbow 20 and 20 carbon steel elbow must be considered when designing and manufacturing carbon steel elbow stiffness, how to improve the hardness of carbon steel elbow, through research we found that carbon steel elbow the need for heat treatment process offer 20 # carbon steel elbow, let's take a look on some of the heat-treated carbon steel elbow knowledge, carbon steel elbow heated to a certain temperature and heat for some time, and then slowly cooled to make it known annealing. Annealing the steel pressing elbow is heated to the phase transition temperature of phase transition or partially, the heat treatment method after incubation of slow cooling. The purpose of annealing is to eliminate tissue defects, improve tissue homogenization makes ingredients and grain refinement to improve the mechanical properties of hot elbow 20 # carbon steel elbow, reducing residual stress. 20 carbon steel elbow is forged steel molding or thermoforming diameter pipe, which is directly connected to form different-diameter pipe and steel pipe welded marine 20 # carbon steel elbow, concentric reducers are mainly manufacturing standards generally GB / T12459, GB / T13401, ASME B16.9, SH3408, SH3409, HG / T21635, HG / T21631, SY / T0510. And there is a corresponding concentric reducer eccentric reducer GB 20 # carbon steel elbow, materials are carbon steel, alloy steel and stainless steel. 20 carbon steel elbow pipe system is widely used in welded elbow oil, gas, chemicals, utilities, construction and other industries boiler molding process is complex, the need for welding, depending on the material and use, in certain were gradually forming under pressure. Cangzhou Bohai 20 Pipe Co., Ltd. specializes in producing carbon steel elbow elbow push hot forming process is the use of special elbow pushing machine, the mandrel and the heating device, so that the mold set in the blank under the impetus pushing machine forward movement , in motion is heated, expanded diameter and bending forming. Hot push elbow tube diameter deformation characteristics are determined in accordance with the law of constant volume before and after plastic deformation of metallic materials, used in the elbow tube diameter less than the diameter of the mandrel through controlled deformation of the blank, the inner arc of the compressed metal flow, to other parts of the compensation due to the enlarged diameter and thinned, thereby obtaining a uniform wall thickness of the elbow. Hot push elbow forming process has a beautiful appearance, uniform thickness and continuous operation, suitable for mass production characteristics, and thus become carbon steel, alloy steel, the main method of forming the elbow, and is also used in certain types of stainless steel elbow The forming. Forming process heating intermediate frequency or high frequency induction heating (heating coil for multiple laps or lap), flame heating furnace heating and reflection, depending on what kind of heating energy requirements and shaping the product of decisions. Franchised 20 # carbon steel elbow, 20 # carbon steel elbow, Cangzhou Bohai (View) provided by Cangzhou Bohai Pipe Fittings Limited. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) is a professional, "elbows, flanges, reducers, hangers, flanging, intubation, welded flange, wear-resistant pipe," the company . Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Bohai Yan" brand has a good reputation. We adhere to the "service first, customers first" principle, so Cangzhou Bohai has won the trust of customers in all three links, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you!