Device and method for preparing composite pipe from titanium-containing bimetallic plate

Abstract

The invention provides a device and method for preparing a composite pipe from a titanium-containing bimetallic plate. The preparation method comprises the following steps that a core mold and a collaborative self-resistance heating tooling are prepared, a metal plate blank is selected, the surfaces of the core mold and the plate blank are coated with lubricant, and the core mold and the plate blank are subjected to multi-process thinning, deep-drawing and spinning into a cylindrical piece by a spinning wheel; a titanium plate blank is selected, the collaborative self-resistance heating tooling is installed, and the titanium plate is subjected to collaborative self-resistance heating multi-process deep drawing and spinning form a cylindrical piece by using the spinning wheel and a resistance rod; and the surfaces of the cylindrical pieces are grinded and polished, demoulding is carried out, and the heads and the tail ends of the cylindrical pieces are removed to obtain the bimetallic composite pipe formed by the titanium-containing bimetallic plate. The device and the method are used for preparing the composite pipe, simplicity and high-efficiency are achieved, the local temperature of the titanium plate is increased rapidly in collaborative self-resistance heating, spinning and forming of the titanium plate are facilitated, the inner and outer layers of metal are subjected tothermal coupling effect, and the interface bonding strength is high; and the cycle of designing and manufacturing the core mold is short, and the bimetallic composite pipes of different materials andthicknesses can be prepared on a same numerical control spinning machine.

Description

technical field [0001] The invention relates to the field of bimetal spinning forming, in particular to a device and method for preparing a composite pipe from a titanium-containing bimetal plate. Background technique [0002] Metal pipes are widely used in petrochemical, aerospace and other industries. With the improvement of service conditions, single metal pipe fittings can no longer meet the development needs of the industry. Bimetal pipes made of two metals can realize single metal pipe fittings. Can not meet the performance requirements, but also can save materials, cost-effective. Bimetal composite pipes have improved the use range of metal materials and have a wider demand in the petrochemical industry. [0003] Common metal composite pipe processing methods include mechanical composite technology and metallurgical composite technology. Mechanical composite is the plastic deformation of the inner tube and the elastic deformation of the outer tube at room temperature...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the prior art, the present invention provides a device and method for preparing a composite pipe from a titanium-containing bimetallic plate, which can not only solve the problem of narrow application range caused by the stress release failure caused by the mechanical composite process, but also solve the problem of The characteristics of long metallurgical compounding period and high operation requirements

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