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Preparation method of titanium alloy foil

A technology of titanium alloy foil and titanium alloy plate, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of high alloy processing deformation resistance, work hardening and aging effects, equipment and operation requirements, etc. The effect of reducing requirements, realizing large-scale industrial production and excellent surface quality

Active Publication Date: 2013-02-27
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the preparation process from cold-rolled sheet to foil, the alloy has high resistance to deformation during processing, and is prone to work hardening and aging effects. It requires high equipment and operation, and generally requires a 20-roll foil rolling mill for processing, so TC4, TB8, There are great difficulties in the preparation of foils of high-strength titanium alloys such as TB5

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of the titanium alloy foil of the present embodiment includes the following steps:

[0022] Step 1. Place a cold-rolled TC4 (Ti-6Al-4V) titanium alloy plate with a size of 400mm×400mm×1.5mm in an electric furnace, and keep it at a temperature of 650°C for 15min for surface oxidation treatment;

[0023] Step 2, neatly stacking 2 titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with a size of 415mm×415mm×6mm;

[0024] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with the titanium alloy plate in step 2, and then use an arc welding machine to arc weld the pressing gap. During the arc welding process, reserve a The air vent is about 70mm long. Finally, the steel plate with the air vent is put into the vacuum argon arc welding box, and the vacuum degree is 1×10 -2 Argon arc welding is performed on the air vent under the condition of Pa, to obtain a stacked rolling package with...

Embodiment 2

[0029] The preparation method of the titanium alloy foil of the present embodiment includes the following steps:

[0030] Step 1. Place a cold-rolled TB8 (Ti-15Mo-3Al-2.7Nb-0.25Si, β21S) titanium alloy plate with a size of 400mm×400mm×0.5mm in an electric furnace and keep it at 600°C for 20min Surface oxidation treatment;

[0031] Step 2, neatly stacking 3 titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with a size of 415mm×415mm×4mm;

[0032] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with the titanium alloy plate in step 2, and then use an arc welding machine to arc weld the pressing gap. During the arc welding process, reserve a The air vent is about 70mm long. Finally, the steel plate with the air vent is put into the vacuum argon arc welding box, and the vacuum degree is 1×10 -2 Argon arc welding was carried out on the air vent under the condition of Pa to obtain a rolled package with a thic...

Embodiment 3

[0037] The preparation method of the titanium alloy foil of the present embodiment includes the following steps:

[0038] Step 1. Place a cold-rolled TB5 (Ti-15V-3Al-3Cr-3Sn) titanium alloy plate with a size of 350mm×350mm×0.8mm in an electric furnace, and keep it at 650°C for 15min for surface oxidation treatment ;

[0039] Step 2, neatly stacking 3 titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with a size of 365mm×365mm×5.5mm;

[0040] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with the titanium alloy plate in step 2, and then use an arc welding machine to arc weld the pressing gap. During the arc welding process, reserve a The air vent is about 60mm long, and finally the steel plate with the air vent is put into the vacuum argon arc welding box, and the vacuum degree is 1×10 -1 Argon arc welding was carried out on the air vent under the condition of Pa, to obtain a rolled package with a thic...

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Abstract

The invention provides a preparation method of a titanium alloy foil, comprising the following steps of: 1, carrying out surface oxidization treatment on a titanium alloy plate; 2, overlapping the titanium alloy plate which is subjected to the surface oxidization treatment between two sheets of steel plates; 3, laminating edges of the steel plates and carrying out electric arc welding on a press fit seam, reserving a ventilating opening at any one end and carrying out argon arc welding on the ventilating opening to obtain an overlapped and rolled bag; 4, heating the overlapped and rolled bag; 5, carrying out hot rolling by a four-roller rolling machine; and 6, removing the steel plates and carrying out acid washing and surface flattening treatment to obtain the titanium alloy foil with the thickness of 0.05-0.3 mm. The titanium alloy foil is prepared by using a covering, overlapping and rolling process so that the requirement on rolling equipment is greatly reduced; and a twenty-roller rolling machine which is complicated and expensive is not needed and the titanium alloy foil can be prepared by using a regular four-roller reversible hot rolling machine. The titanium alloy foil prepared by the preparation method disclosed by the invention has the advantages of controllable thickness precision and good surface quality, and is capable of realizing large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy material preparation, in particular to a preparation method of a titanium alloy foil material. Background technique [0002] Foil is an important product form of titanium alloys with a wide range of applications. High-strength titanium alloys such as TC4, TB8, and TB5 have large deformation resistance and good cold formability, and are suitable for preparing cold-rolled sheets. However, in the preparation process from cold-rolled sheet to foil, the alloy processing deformation resistance is large, and it is easy to produce work hardening and aging effects. It requires high equipment and operation. Generally, a twenty-high foil rolling mill is required for processing, so TC4, TB8, It is very difficult to prepare foils of high-strength titanium alloys such as TB5. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a method for prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/40B21B1/38B21B47/00
Inventor 辛社伟李磊洪权赵永庆
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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