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Production method of large-size titanium alloy intermediate rod material

A production method and titanium alloy technology, applied in the direction of metal processing equipment, etc., can solve the problems of reducing the deformation speed of the upsetting process and the complexity of the sheathing process, and achieve strong field operability, strong operability, and convenient production organization Effect

Active Publication Date: 2007-01-10
宝武特冶钛金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) Sacrificing production efficiency and reducing the deformation speed of the upsetting process (that is, multi-fire deformation)
This method can prevent the formation of scale, but the sheathing process is complicated, and the titanium alloy and the sheath stick together after upsetting, so the problem of sheath removal must be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] specific implementation plan

[0028] A certain iron and steel company implements the present invention, utilizes 4000 ton forging presses, forges the cylindrical alloy ingots of several furnaces φ580~φ860 into large-scale (cross-sectional size greater than φ300mm) titanium alloy intermediate billet rods (the selected titanium alloy grade is Ti- 6Al-4V ingot and Ti-6Al-1Mo-1V-2Zr ingot): (1) alloy ingot surface coating: the coating material is a special high-temperature water glass coating, which is the Shanghai Institute of Ceramics The publicly sold RT-1200 heat treatment protective coating (containing elements such as Si, Al, K, Mg, B, etc.), is characterized in that it does not melt when used at a high temperature above 1200°C; the adhesion between the coating and the titanium alloy is compared Well, after a few hours of heating, it won't come off. Before coating the surface of the alloy ingot, first polish the black skin and local defects of the titanium alloy ing...

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Abstract

A technology for manufacturing large-size (300 mm in diameter) raw intermediate Ti-alloy rod incldues such steps as cleaning surface of Ti-alloy ingot, unidirectionally coating high-temp water glass, drying in air, heating to 1150-1200 deg.C, forging reduction and forging longer.

Description

technical field [0001] The invention relates to a production method of titanium and titanium alloy in the metallurgical industry, in particular to a production method of a titanium alloy intermediate billet bar. Background technique [0002] Titanium alloy is a new type of metal material containing more than 85% titanium. It has light specific gravity (about 4.5g / cm2, steel is 7.8g / cm2), corrosion resistance, high service temperature (currently the highest can reach more than 700 ℃), strength High, good plasticity and many other advantages, widely used in aviation, aerospace, marine, construction, automobiles, golf heads and other important military components, high-end civilian products. [0003] The basic production process of titanium alloy products is: (1) preparation of titanium alloy electrodes; (2) melting: melting in a vacuum consumable furnace (because titanium is an active element, titanium alloy is very easy to react with oxygen at high temperature, for To ensure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/06B21J1/02B21J1/06
Inventor 闵新华计波朱益藩金鑫
Owner 宝武特冶钛金科技有限公司
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