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Alloy pipe material thermal extrusion method and extrusion mould

A technology of hot extrusion and alloy pipe, which is applied in the field of hot extrusion of pipes to achieve the effects of good product quality, low cost and improved service life

Inactive Publication Date: 2006-08-30
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems existing in the hot extrusion forming process of the existing alloy pipes, improve the process parameters and process methods such as the heating temperature of the extrusion billet, the preheating temperature of the mold, and the extrusion speed, and provide a production efficiency Alloy pipe hot extrusion method and extrusion die with high cost, low cost and good product quality

Method used

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  • Alloy pipe material thermal extrusion method and extrusion mould

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Embodiment Construction

[0015] The structure and extrusion method of the alloy pipe hot extrusion die of the present invention will be further described in conjunction with examples below.

[0016] Such as figure 1 As shown, an alloy pipe hot extrusion method and an extrusion die include an extrusion shaft 1, an extrusion cylinder 2, an extrusion pad 3, a graphite pad 4, an extrusion rod 5, an extrusion blank 6, and a glass pad 7, Die 8, bottom plate 9, pressing plate 10, extrusion cylinder seat 11, fixed seat 12. The extrusion cylinder 2 is arranged in the extrusion cylinder seat 11, and is fixed on the base plate 9 with screws through the pressure plate 10, and the die 8 is arranged at the lower end of the extrusion cylinder 2, and is fixed in the groove on the base plate 9, and the base plate 9 is fixed on the base of the extruder by bolts, put the heated glass pad 7 on the die 8, install the heated extrusion blank 6, then put the graphite pad 4 and the extrusion pad 3, and extrude The pressure ...

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Abstract

The present invention relates to a hot extrusion method of alloy pipe material and its extrusion die arrangement. It includes an extrusion chamber, said extrusion chamber is placed in the extrusion chamber seat and is fixed on the base plate by means of pressure plate, the concave die is placed in the lower end of extrusion chamber and is fixed in the recessed groove on the base plate, the base plate is fixed on the base seat of extruder by means of bolt, the extrusion ram is set in the glass pad, extrusion billet material, graphite pad and extrusion pad, and is fixed on the extrusion shaft, and said extrusion shaft is fixed under the extrusion head of extruder by means of fixing seat. Said extrusion process includes the following steps: (1) preheating die arrangement; (2) applying lubricating agent; (3) heating billet material; (4) extrusion forming; (5) annealing; and (6) cleaning extruded pipe billet.

Description

technical field [0001] The invention belongs to the pipe hot extrusion technology, in particular to an alloy pipe hot extrusion method and an extrusion die. Background technique [0002] Superalloy materials have the advantages of good oxidation resistance, corrosion resistance and compression resistance at high temperatures, especially nickel-based superalloy pipes, which can be used at temperatures above 700°C and are widely used in aviation, aerospace vehicles, power generation, rocket engines, nuclear reactors, petroleum Chemical and other industrial areas. However, there are still major technical problems in the processing and forming of nickel-based superalloy pipes: (1) Due to the high strength of the material and poor material fluidity, when using ordinary conical die structures and lubrication methods to hot-extrude pipes , due to the poor extrusion process, severe cracks in the tube billet, difficult forming, and high production rejection rate; (2) The hot extrusi...

Claims

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Application Information

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IPC IPC(8): B21C23/02B21C29/00B21C23/32B21C25/02
Inventor 王忠堂张士宏
Owner SHENYANG LIGONG UNIV
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