Heat treatment solutions for copper pipe and valve parts of refrigeration accessories

  Common copper pipes and copper valve parts in the refrigeration accessories industry such as: three-way, four-way, two-way, globe valve, square valve, ball valve, one-way valve, take-up nut, valve stem, copper pipe fittings, etc. The process flow of copper pipes and valves for refrigeration accessories are generally cutting, forming, heat treatment (annealing), polishing and deburring, cleaning, drying, machining, inspection and packaging.

  Heat treatment of copper fittings for refrigeration fittings

  The heat treatment of copper pipes and copper valve parts is one of the important processes for the production of refrigeration accessories. The thermal processing performance of copper pipe parts is very good, such as various traditional processes such as bending, drawing, deep drawing, calendering, precision pressing and spinning Craftsmanship is acceptable. A metal thermal processing technology that places copper tubes in a heat treatment furnace for heating, heat preservation, and cooling, and changes the metallographic structure of the surface or inside of the copper tube to control its performance. The heat treatment method is used to increase the good elasticity of copper pipe fittings to eliminate cold work hardening. Subsequent processing, such as stretching, stretching, and bending, is more convenient. Copper tubes are heat-treated and do not produce any phase-change structure like steel materials, but the heating temperature is also very important because this is the main problem to ensure the quality of heat treatment. The chemical heat treatment is a good method, because when high energy density heating and surface heat treatment are used, the heating speed is extremely fast, and the holding time will be very short, while the chemical heat treatment is longer than other heating holding times.

  For the refrigeration accessories industry, the preferred furnace type is the aerobic box annealing furnace. This furnace type has the advantages of fast heating speed, uniform temperature, large daily output, simple and convenient operation, and it is easy to be taught by workers. Praised by the majority of users, especially the refrigeration accessories industry.