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A kind of processing technology of titanium alloy tube

A processing technology and technology for titanium alloy tubes, applied in the field of titanium tube processing, can solve the problems of high cold deformation resistance, poor cold working performance, and poor surface quality of titanium alloys, and achieve full annealing, good surface quality, and grain refinement. Effect

Active Publication Date: 2020-12-11
陕西优美特金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the cold deformation resistance of titanium alloy is large, the rebound is serious, the plasticity is not high, and the cold workability is poor. At present, the processing method of titanium and titanium alloy seamless pipes is mainly cold rolling, but there are problems such as poor surface quality and uneven wall thickness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A processing technology for a titanium alloy tube, comprising the following steps:

[0025] (1) Alloy smelting: Put the raw materials in a smelting furnace for smelting; the raw materials are: 2-3% molybdenum, 3-4% nickel, 2-3% tin, 5-8% aluminum, 0.2-0.4% silicon, Carbon 0.1-0.2%, iron 1-2%, and the rest are unavoidable impurities and titanium;

[0026] (2) Pouring: After the die-casting machine is closed, the alloy melt is filled into the cavity at a spray speed of 30-40m / s. After the alloy melt fills the cavity, it is molded into one body by die-casting machine. The filling pressure is 12-15MPa; get ingot;

[0027] (3) Piercing and extrusion: the ingot is placed in the piercing equipment for piercing, and the pierced ingot is extruded under high temperature conditions to obtain a tube blank;

[0028] (4) Rolling: use a cold press to carry out multi-pass rolling on the tube blank, and perform degreasing treatment and annealing treatment after each rolling; the degre...

Embodiment 2

[0034] A processing technology for a titanium alloy tube, comprising the following steps:

[0035] (1) Alloy smelting: Put the raw materials in a smelting furnace for smelting; the raw materials are: 2-3% molybdenum, 3-4% nickel, 2-3% tin, 5-8% aluminum, 0.2-0.4% silicon, Carbon 0.1-0.2%, iron 1-2%, and the rest are unavoidable impurities and titanium;

[0036] (2) Pouring: After the die-casting machine is closed, the alloy melt is filled into the cavity at a spray speed of 30-40m / s. After the alloy melt fills the cavity, it is molded into one body by die-casting machine. The filling pressure is 12-15MPa; get ingot;

[0037] (3) Piercing and extrusion: the ingot is placed in the piercing equipment for piercing, and the pierced ingot is extruded under high temperature conditions to obtain a tube blank;

[0038] (4) Rolling: use a cold press to carry out multi-pass rolling on the tube blank, and perform degreasing treatment and annealing treatment after each rolling; the degre...

Embodiment 3

[0043] A processing technology for a titanium alloy tube, comprising the following steps:

[0044] (1) Alloy smelting: Put the raw materials in a smelting furnace for smelting; the raw materials are: 2-3% molybdenum, 3-4% nickel, 2-3% tin, 5-8% aluminum, 0.2-0.4% silicon, Carbon 0.1-0.2%, iron 1-2%, and the rest are unavoidable impurities and titanium;

[0045] (2) Pouring: After the die-casting machine is closed, the alloy melt is filled into the cavity at a spray speed of 30-40m / s. After the alloy melt fills the cavity, it is molded into one body by die-casting machine. The filling pressure is 12-15MPa; get ingot;

[0046] (3) Piercing and extrusion: the ingot is placed in the piercing equipment for piercing, and the pierced ingot is extruded under high temperature conditions to obtain a tube blank;

[0047] (4) Rolling: use a cold press to carry out multi-pass rolling on the tube blank, and perform degreasing treatment and annealing treatment after each rolling; the degre...

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Abstract

The invention discloses a machining technology of a titanium alloy pipe. The technology comprises the following steps of alloy smelting, pouring, perforating, extruding, rolling and surface treatment.According to the machining technology, titanium serves as a main raw material, the material is poured into an ingot, then perforating and extruding are carried out, and the smoothness degree of the inner surface of the obtained pipe is good.

Description

technical field [0001] The invention relates to a processing technology of a titanium alloy tube, belonging to the technical field of titanium tube processing. Background technique [0002] Titanium and its alloys are widely used in aerospace, chemical industry, nuclear industry and Weapons etc. [0003] However, the cold deformation resistance of titanium alloy is large, the rebound is serious, the plasticity is not high, and the cold workability is poor. At present, the processing method of titanium and titanium alloy seamless pipes is mainly cold rolling, but there are problems such as poor surface quality and uneven wall thickness. . Contents of the invention [0004] In order to overcome the deficiencies of the prior art, the invention provides a processing technology for titanium alloy tubes. [0005] The present invention is achieved through the following technical solutions: [0006] A processing technology for a titanium alloy tube, comprising the following st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00B21C37/06C23G1/10C22F1/18
CPCB21C37/06C22C14/00C22F1/183C23G1/106
Inventor 范祥荣王巍
Owner 陕西优美特金属材料有限公司
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