Explosive welding forming device for composite head made of titanium and common low-alloy steel

Abstract

The invention discloses an explosion welding forming device for titaniumtim and an ordinary low-alloy steel composite head. The explosion welding forming device comprises an ordinary low-alloy steel head base layer, a titaniumtim head composite layer, a buffer layer and a specially-shaped explosive bag. The ordinary low-alloy steel head base layer is arranged on a sandy base layer, the titaniumtim head composite layer is arranged on the ordinary low-alloy steel head base layer and forms a gap with the same, the buffer layer is arranged on the inner surface of the titaniumtim head composite layer and is fit to the same, high explosive is arranged on the inner surface of the buffer layer and is fit to the same, the high explosive and a blasting cap are filled in the center position of the specially-shaped explosive bag, primary explosive is filled in the other parts around the specially-shaped explosive bag, and a sand pile is filled in the upper portion of the specially-shaped explosive bag. The explosion welding forming device is compact in structure, the blasting cap and the high explosive are ignited to enable the bottom of the titaniumtim head composite layer to be welded to the bottom of the ordinary low-alloy steel head base layer, and the other parts of the titaniumtim head composite layer are welded; a bonding zone is free of heat affected zones, joint performance is good, excellent performance can be sustained with no need of strict protection upon the titaniumtim head composite layer during the explosion welding process.

Description

Technical field [0001] The invention belongs to the technical field of process equipment manufacturing, and relates to an explosive welding forming device of a titanium material and a common low alloy steel composite head. Background technique [0002] Titanium material can absorb hydrogen quickly above 300℃; oxygen can be absorbed quickly above 600℃; nitrogen can be absorbed quickly above 700℃; resulting in the decrease of plasticity, toughness and corrosion resistance of titanium material. The stamping of the titanium plate adopts cold forming at room temperature and medium temperature forming at 550-650℃. After forming, measures must be taken to strictly remove and polish the contaminated surface to ensure its performance. [0003] When the titanium material and ordinary low alloy steel composite head adopts the titanium composite plate forming method, if the ordinary low alloy steel has a large thickness, it may not be formed normally if the ordinary low alloy steel is formed b...

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Problems solved by technology

[0003] When the composite head of titanium material and ordinary low alloy steel is formed by titanium composite plate, if the thickness of the ordinary low alloy steel is relatively large, normal temperature cold forming and 550-650°C forming may not be able to form normally; if the temperature is higher than 700 For thermoforming above ℃, it is necessary to strictly protect the titanium material with argon gas during the entire forming process to avoid contamination of the titanium material, and at the same time prevent the titanium material from being polluted by iron ions, so this process is difficult to achieve; in this case , if ordinary low-alloy steel is separately hot-formed to form the base layer of the head, and then the inner surface of the head is surfacing welded with titanium after grinding, inspection and heat treatment, etc., but so far, titanium and ordinary low-alloy steel have not been able to Realize the welding of conventional welding methods, and cannot realize the surfacing welding of titanium on the surface of ordinary low-alloy steel

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