Thin-wall high temperature alloy tubing simulation extrusion device

Abstract

The invention discloses a thin-wall high temperature alloy tubing simulation extrusion device, belonging to tubing thermal-extrusion field. The device comprises a standard die set with a guiding device, and a simulation tubing thermal-extrusion mould which is arranged on the standard die set with the guiding device, the standard die set comprises an upper die holder, a lower die holder, a guide pillar and a guide bush, one end of the guide bush is connected with the upper die holder, the guide post is connected with the lower die holder, and the other end of the guide post is sheathed in the guide bush and can move along the guide bush up and down. The simulation tubing thermal-extrusion mould comprises an extrusion shaft, an extrusion needle, an extrusion pad, a positioning frame, an extrusion container inner lining, an extrusion container outer lining, a die cushion, a cushion block and an extrusion die. The device of the invention has good popularity; the guide post and the guide bush are adopted, the die cushion and the extrusion container have positioning ring coordination, the extrusion needle and the extrusion pad have guide coordination, good alignment, and convenient and flexible use; the time consumption of experimental process is short, the efficiency is high, the material use ratio is high and the cost is low.

Description

technical field [0001] The invention belongs to the field of hot extrusion of pipes in mechanical processing, and relates to a simulated extrusion device for thin-walled superalloy pipes. Background technique [0002] High-temperature alloy pipes have the advantages of high strength at high temperature, oxidation resistance and corrosion resistance, and are widely used in aviation, aerospace vehicles, power generation, rocket engines, nuclear reactors, petrochemical and other industrial fields. However, due to the high strength, poor material fluidity and narrow thermal processing temperature range of superalloy materials, according to the existing production technology, it is often difficult to form in the actual hot extrusion production of superalloy pipes, and the product rejection rate is high. Therefore, it is necessary to measure the metal deformation process parameters in the production of superalloy pipes and compare the high temperature flow stress under different p...

AI Technical Summary

Problems solved by technology

Since there is no special experimental device for hot extrusion of thin-walled metal pipes, the hot extrusion process exploration and optimization in practice are all carried out on large extruders in the factory, although the obtained experimental results can be used directly. It is used to guide production, but its experiment preparation period is long, it needs a lot of manpower and material resources, and the experiment cost is high

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