A kind of tc4 titanium alloy flux-cored welding wire and preparation method thereof

A technology of flux-cored welding wire and titanium alloy, which is applied in welding equipment, metal processing equipment, manufacturing tools, etc. It can solve the problems of high cost of formula adjustment, poor wetting and spreading, and low efficiency of welding wire deposition, achieving wetting and Good spreading performance, small welding spatter, improved welding process performance and joint mechanical properties

Active Publication Date: 2022-05-20
HARBIN WELDING INST LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that most of the existing welding wires for titanium alloy welding are solid welding wires, but the preparation process of solid welding wires is complicated, the cost of formula adjustment is high, and the deposition efficiency of the obtained welding wires in the welding process is low and the moistening effect is low. Wet and poor spreadability and other technical problems, and provide a high-quality and efficient TC4 titanium alloy flux-cored welding wire and its preparation method

Method used

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  • A kind of tc4 titanium alloy flux-cored welding wire and preparation method thereof
  • A kind of tc4 titanium alloy flux-cored welding wire and preparation method thereof
  • A kind of tc4 titanium alloy flux-cored welding wire and preparation method thereof

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specific Embodiment approach 1

[0037]Embodiment 1: A TC4 titanium alloy flux-cored welding wire in this embodiment is prepared from a TA1 titanium alloy sheath and a flux core; the TA1 titanium alloy sheath is formed from a TA1 titanium strip through reeling, drawing, and annealing; The drug core is composed of vanadium powder, aluminum powder, molybdenum powder, cobalt powder, nickel powder, copper powder, silicon powder and titanium powder, wherein the mass percentage of each component is vanadium powder: 20%, aluminum Powder: 26%, molybdenum powder: 18%, cobalt powder: 0.1%, nickel powder: 2%, copper powder: 0.6%, silicon powder: 0.1%, the rest is titanium powder, the composition and content of the TA1 titanium alloy skin elements It is: Ti≥99%, H≤0.015%, N≤0.03%, the thickness of the TA1 titanium strip is 0.35mm, the width is 7mm, and the length is 35m, wherein the filling rate of the flux core in the TC4 titanium alloy flux cored wire is 20%, the particle size of the aluminum powder and titanium powder...

specific Embodiment approach 2

[0046] Specific embodiment two: a TC4 titanium alloy flux-cored welding wire in this embodiment is prepared from a TA1 titanium alloy sheath and a flux core; the TA1 titanium alloy sheath is formed from a TA1 titanium strip through reeling, drawing, and annealing; The drug core is made of vanadium powder, aluminum powder, molybdenum powder, cobalt powder, nickel powder, copper powder, silicon powder and titanium powder, wherein the mass percentage of each component is vanadium powder: 23%, aluminum powder: 25%, molybdenum powder: 15%, cobalt powder: 0.2%, nickel powder: 3%, copper powder: 0.8%, silicon powder: 0.2%, and the rest is titanium powder. The composition and content of the TA1 titanium alloy skin elements It is: Ti≥99%, H≤0.015%, N≤0.03%, the thickness of the TA1 titanium strip is 0.40mm, the width is 8mm, and the length is 35m, wherein the filling rate of the flux core in the TC4 titanium alloy flux cored wire is 22%, the particle size of aluminum powder and titaniu...

specific Embodiment approach 3

[0055] Specific embodiment three: a TC4 titanium alloy flux-cored welding wire in this embodiment is prepared from a TA1 titanium alloy sheath and a flux core; the TA1 titanium alloy sheath is formed from a TA1 titanium strip through reeling, drawing, and annealing; The drug core is mixed with vanadium powder, aluminum powder, molybdenum powder, cobalt powder, nickel powder, copper powder, silicon powder and titanium powder, wherein the mass percentage of each component is vanadium powder: 16%, aluminum powder: 25%, molybdenum powder: 15%, cobalt powder: 0.3%, nickel powder: 4%, copper powder: 1.0%, silicon powder: 0.3%, and the rest is titanium powder. The composition and content of the TA1 titanium alloy skin elements It is: Ti≥99%, H≤0.015%, N≤0.03%, the thickness of the TA1 titanium strip is 0.45mm, the width is 8mm, and the length is 35m, wherein the filling rate of the flux core in the TC4 titanium alloy flux cored wire is 25%, the particle size of aluminum powder and ti...

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Abstract

A TC4 titanium alloy flux-cored welding wire and a preparation method thereof. The invention belongs to the technical field of welding material preparation. The purpose of the present invention is to solve the problem that most of the existing welding wires for titanium alloy welding are solid welding wires, but the preparation process of solid welding wires is complicated, the cost of formula adjustment is high, and the deposition efficiency of the obtained welding wires in the welding process is low and the moistening effect is low. Technical problems of wetness and poor spreadability. The flux-cored welding wire is prepared from a TA1 titanium alloy sheath and a flux core; the TA1 titanium alloy sheath is made of a TA1 titanium strip through reeling, drawing, and annealing; the flux core is made of vanadium powder, aluminum powder, molybdenum powder, Cobalt powder, nickel powder, copper powder, silicon powder and titanium powder are mixed. Preparation method: first clean the TA1 titanium strip, ball mill the core powder, then reel the TA1 titanium strip, fill it with the core powder, roll and reduce the diameter, and then conduct cold drawing to reduce the diameter of the drawing die to obtain the flux cored welding wire. The flux-cored welding wire of the invention can be used for TC4 titanium alloy welding, has good comprehensive mechanical properties, low content of diffused hydrogen in deposited metal, and high welding efficiency.

Description

technical field [0001] The invention belongs to the technical field of welding material preparation, and in particular relates to a TC4 titanium alloy flux-cored welding wire and a preparation method thereof. Background technique [0002] TC4 titanium alloy is widely used in marine drilling, pressure vessels, deep submersibles, Nuclear submarines, aerospace ships and weapons and equipment and other fields. As early as the 1980s, the U.S. coastal defense construction army had begun to use titanium alloy materials to manufacture ocean-going transport ships, which greatly improved its service life and stability, and reduced maintenance costs. In recent years, the proportion of titanium alloy materials used in the manufacturing of deep sea space workstations in many western developed countries has been increasing. Compared with the overall stamping forming, the welding preparation process is small, the cycle is short, the consumables are less, and the cost is low, and the weld...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/32B23K35/12B23K35/40
CPCB23K35/325B23K35/0266B23K35/406
Inventor 方乃文黄瑞生徐锴李伟尹立孟杨义成梁晓梅陈玉华邹吉鹏谢吉林曾才有曹浩王立志方迪生徐楷晰武鹏博
Owner HARBIN WELDING INST LTD
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