A kind of thermal processing elongation method of ti-v-cr flame retardant titanium alloy

Abstract

The invention discloses a hot working drawing method for Ti-V-Cr flame retardant titanium alloy, which relates to a processing method for metal materials, in particular to a hot working drawing method for flame retardant titanium alloy. It includes cutting the riser and bottom pad from the Ti-V-Cr flame retardant titanium alloy after ingot casting, which is characterized in that after the surface of the billet is closely matched with a closed metal sheath, it is heated to 900℃-1200℃ , heat preservation for 2-8 hours, in the process of heating and heat preservation, semi-open mold or closed mold hot processing is used, and then the skin is removed to complete the drawing process, and the deformation amount of each fire is 10%-30%. In the method of the present invention, before heating, a soft metal sheath should be used to cover the workpiece, and the sheath should be sealed to cut off the contact between the workpiece and the external atmosphere; in the process of heating and heat preservation, a semi-open mold (shaped drill) or a closed mold thermal processing method is used. , which increases the amount of deformation during processing and reduces the requirements for blank size under general processing conditions.

Description

A kind of hot working drawing method of Ti-V-Cr flame-retardant titanium alloy technical field A kind of thermal processing elongation method of Ti-V-Cr flame retardant titanium alloy, relates to a kind of processing method of metal material, especially In particular, it is a method of thermal processing and elongation of flame-retardant titanium alloys. Background technique The thermal processing process of conventional titanium alloy can be processed by air hammer free forging, press conventional processing and hot rolling mill. It can be realized by standard hot rolling. For the processing of some titanium alloys with stricter requirements, it can be adjusted by adjusting the processing temperature, etc. method, so that the performance of the alloy can be improved and improved, such as near β forging of TC11 titanium alloy. Flame-retardant titanium alloy is an emerging pioneer in the world Flame-retardant and heat-resistant materials for general air engines. It...

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Problems solved by technology

Although the processing method of burning titanium alloy is feasible, it has high requirements on the size of the blank before processing, otherwise it is difficult to obtain the processing requirements.