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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 work hardening and aging effect, high alloy processing deformation resistance, high equipment and operation requirements, and achieve Achieve the effect of large-scale industrial production, reduced requirements, and excellent surface quality

Active Publication Date: 2014-12-24
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 material of the present embodiment comprises the following steps:

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

[0023] Step 2. Neatly stack two titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with dimensions of 415mm×415mm×6mm;

[0024] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with titanium alloy plates in Step 2, and then use an arc welding machine to perform arc welding on the pressing gap. During the arc welding process, a gap is reserved at either end of the steel plates. The air vent is about 70mm long, and finally put the steel plate with the air vent reserved in the vacuum argon arc welding box, and the vacuum degree is 1×10 -2 Under the condition of Pa, a...

Embodiment 2

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

[0030] Step 1. Place the 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 warm for 20min at a temperature of 600°C Carry out surface oxidation treatment;

[0031] Step 2. Neatly stack three titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with dimensions of 415mm×415mm×4mm;

[0032] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with titanium alloy plates in Step 2, and then use an arc welding machine to perform arc welding on the pressing gap. During the arc welding process, a gap is reserved at either end of the steel plates. The air vent is about 70mm long, and finally put the steel plate with the air vent reserved in the vacuum argon arc welding box, and the vacuum degree is 1×10 -2 Unde...

Embodiment 3

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

[0038] Step 1. Place the 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 warm for 15 minutes at a temperature of 650°C for surface oxidation treatment ;

[0039] Step 2. Neatly stack three titanium alloy plates after surface oxidation treatment in step 1 between two steel plates with dimensions of 365mm×365mm×5.5mm;

[0040] Step 3: Use hydraulic pliers to press the edges of the two steel plates stacked with titanium alloy plates in Step 2, and then use an arc welding machine to perform arc welding on the pressing gap. During the arc welding process, a gap is reserved at either end of the steel plates. The air vent is about 60mm long, and finally put the steel plate with the air vent reserved in the vacuum argon arc welding box, and the vacuum degree is 1×10 -1 Under the con...

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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, and in particular relates to a preparation method of titanium alloy foil. Background technique [0002] Foil is an important product form of titanium alloy and has a wide range of applications. High-strength titanium alloys such as TC4, TB8, and TB5 have high deformation resistance and good cold formability, and are suitable for preparing cold-rolled sheets. 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. Contents of the invention [0003] The technical problem to be solved by the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Patents(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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