Titanium alloy and stainless steel electron beam welding filler material, preparation process and method thereof

A technology of electron beam welding and filling materials, which is applied in the direction of electron beam welding equipment, welding/cutting media/materials, welding equipment, etc., can solve the problems of difficult to obtain high-strength joints, metallurgical incompatibility physical properties, etc., to avoid A large amount of melting, increasing the range of welding speed, and good oxidation resistance
CN103192195BInactive Publication Date: 2015-11-11HARBIN INST OF TECH AT WEIHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH AT WEIHAI
Publication Date
2015-11-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of heterogenetic difficultly-welded material melting, and specifically relates to a titanium alloy and stainless steel electron beam welding filler material. The titanium alloy and stainless steel electron beam welding filler material is characterized in that the electron beam welding filler material between a titanium alloy plate and a stainless steel plate comprises a vanadium layer and a copper-chromium alloy layer, wherein the copper-chromium alloy layer is composed of the following elements in percentage by mass: 30-50% of chromium powder, 2-5% of nickel powder, 3-7% of titanium powder and the balance of copper powder. Through changing the compositions of the filler material, Ti and Fe elements can be effectively separated so as to avoid the formation of brittle intermetallic compounds in welds, therefore, the filler material has the advantages of high weld density, small brittleness, no pore and crack, and the like.
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Description

technical field

[0001] The invention relates to the field of fusion welding of dissimilar refractory materials, in particular to a filling material for electron beam welding of titanium alloy and stainless steel, a preparation process and a method thereof. Background technique

[0002] The development of the aerospace industry puts forward higher indicators for the performance of the new generation of engines, requiring a substantial increase in the working pressure and temperature of the thrust chamber of the engine, and at the same time increasing the thrust-to-weight ratio of the engine itself to further enhance its fast maneuverability. Part of the steel body is replaced by titanium alloy and connected with copper alloy for the manufacture of the engine thrust chamber body, which can achieve a partial weight reduction of 10-15%, meeting the high performance of the new generation of liquid oxygen kerosene high-thrust rocket engine and high-altitude guided engine need. At...

Claims

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