Brief introduction of production process of red copper tube

Deform-2d simulation software was used to simulate and analyze the extrusion process parameters, such as billet temperature and extrusion speed, in order to manufacture an ultra-thick seamless T2 copper tube with uniform and fine grains for large size crystallizer (crucible). The results show that the temperature distribution and deformation degree of the billet flowing through the extrusion die and the upper part of the extrusion cylinder are uniform after the billet is subjected to the three-way compressive stress. According to the simulation results, an ultra-thick seamless T2 copper tube of φ1065 mm×δ57 mm×5800 mm was produced. The overall grain size of the product was uniform, fine and uniform, and the product life was more than three times that of "forging + bushing" product. Before, crucible cylinder body (large size seamless copper tube) manufacturing methods include centrifugal casting method, electrolytic deposition method, coil welding method, forging + sleeve method, extrusion method, Including extrusion method for producing the best quality, our domestic manufacturing specifications copper crystallization is used seamless tube often USES two kinds of process manufacturing. (1) the heating temperature of billet with reference to the existing forging billet + nesting technology in natural gas heating furnace heating, heat preservation, the introduction of billet by the infrared temperature measurement, the surface temperature of 728 ~ 749 ℃, simulation set billet temperature is 750 ℃; Mould preheating temperature is 320℃.