If the mixer truck raceway forgings made of stainless steel and heat-resistant steel cannot be strengthened by heat treatment, solution treatment is required to improve the corrosion resistance and plasticity of the mixer truck raceway forgings and eliminate cold work hardening. Workpieces with complex shapes and not suitable for solution treatment can be subjected to stress relief annealing. In order to obtain stable corrosion resistance of stainless steel containing titanium or niobium, stabilization annealing may be performed. The mixer truck raceway forgings made of stainless steel and heat-resistant steel can be strengthened by heat treatment, and the strength, hardness and corrosion resistance are required to be improved. Low temperature alloys should be used for quenching and tempering. For workpieces that require high strength and elastic limit but do not require high corrosion resistance, medium temperature alloys should be used for quenching and tempering. For workpieces that require good mechanical properties and certain corrosion resistance, the mixer truck raceway forgings should be quenched and tempered with warm alloy. The workpieces that need to eliminate processing stress, reduce hardness and improve plasticity can be annealed. The workpieces that need to improve the original structure can be subjected to preliminary heat treatment of normalizing and warm tempering. The precipitation hardening stainless steel workpiece with good mechanical properties and corrosion resistance of the mixer truck raceway forging can be adjusted by solid solution and aging, solid solution and cold treatment or cold deformation and aging. The welded components are composed of stainless steel and heat-resistant steel, which can be strengthened by heat treatment, and can be quenched, tempered or stress-relieved annealing according to the requirements of the forging drawings. When the mixer truck raceway forging components that cannot be strengthened by heat treatment need to improve the structure and corrosion resistance of the welding area and fully eliminate the stress, solution treatment can be carried out. For welded components with complex shapes and not suitable for solution treatment, stress relief annealing can be used. When corrosion resistance is the main requirement for welded components composed of stainless steel and heat-resistant steel, and these mixer truck raceway forgings can be strengthened or not strengthened by heat treatment, solution treatment and low temperature tempering should be carried out. When mechanical properties are required, low temperature quenching or warm and medium tempering should be carried out. For welded components with complex shapes, stress relief annealing or high temperature tempering can be carried out.
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