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TC4 titanium alloy metal powder core flux-cored welding strip and preparation method thereof

A technology of metal powder core and titanium alloy, which is applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems that the composition of titanium alloy solid welding strip is difficult to control, and the surfacing cladding layer is difficult to meet, so as to increase the strength, The effect of reducing corrosion resistance and improving plastic toughness

Active Publication Date: 2022-06-24
HARBIN WELDING INST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the composition of the existing titanium alloy solid welding strip for submerged arc surfacing of titanium alloy is difficult to control and the surfacing cladding layer is difficult to meet the comprehensive properties of strength, plasticity, toughness, wear resistance and corrosion resistance. In view of the technical problems of indicators, a kind of TC4 titanium alloy metal powder cored flux cored welding strip and its preparation method are provided

Method used

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  • TC4 titanium alloy metal powder core flux-cored welding strip and preparation method thereof
  • TC4 titanium alloy metal powder core flux-cored welding strip and preparation method thereof
  • TC4 titanium alloy metal powder core flux-cored welding strip and preparation method thereof

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Embodiment 1

[0036]Example 1: A TC4 titanium alloy metal powder core flux cored ribbon of this example is composed of a Ti-9Mo-3Nb-3V titanium alloy skin and a metal powder core filled therein; the metal powder core is composed of vanadium according to mass fraction Powder: 6%, aluminum powder: 13%, molybdenum powder: 3%, iron powder: 4%, silicon powder: 1.5%, nickel powder: 6% and the balance titanium powder are mixed. The particle size of the Ti-9Mo- The element composition and mass content of each element in the outer skin of 3Nb-3V titanium alloy are: Mo: 8.5%, Nb: 3.0%, V: 2.9%, Al: 3.7%, H≤0.010%, O≤0.020%, N≤0.020% , the balance is Ti, the thickness of the Ti-9Mo-3Nb-3V skin is 0.40mm, the width is 16mm, and the length is 100m, and the filling rate of the metal powder core in the TC4 titanium alloy metal powder core flux cored ribbon is 26 %;

[0037] The preparation method of the above-mentioned titanium alloy metal powder-cored flux-cored welding ribbon is carried out according ...

Embodiment 2

[0044] Example 2: A TC4 titanium alloy metal powder core flux cored ribbon of this example is composed of a Ti-9Mo-3Nb-3V titanium alloy skin and a metal powder core filled therein; the metal powder core is composed of vanadium in mass fraction Powder: 7%, aluminum powder: 17%, molybdenum powder: 5%, iron powder: 5%, silicon powder: 3%, nickel powder: 8% and the balance of titanium powder. The particle size of the vanadium powder, molybdenum powder and iron powder is 80 mesh to 200 mesh, the particle size of the silicon powder and nickel powder is 60 mesh to 100 mesh, and the Ti powder The composition of elements and the mass content of each element in the outer skin of -9Mo-3Nb-3V titanium alloy are: Mo: 9%, Nb: 3.1%, V: 3.1%, Al: 4.0%, H≤0.010%, O≤0.020%, N ≤0.020%, the balance is Ti, the thickness of the Ti-9Mo-3Nb-3V titanium alloy skin is 0.50mm, the width is 18mm, and the length is 120m, and the metal powder core in the TC4 titanium alloy metal powder core flux cored rib...

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Abstract

The invention discloses a TC4 titanium alloy metal powder core flux-cored welding strip and a preparation method thereof. The invention belongs to the technical field of welding material preparation. The titanium alloy solid welding strip aims at solving the technical problems that components of an existing titanium alloy solid welding strip for titanium alloy strip electrode submerged arc surfacing are not easy to regulate and control, and a surfacing cladding layer is difficult to meet comprehensive performance indexes such as strength, plasticity, toughness, abrasion resistance and corrosion resistance. The welding strip is composed of a Ti-9Mo-3Nb-3V titanium alloy skin and a metal powder core filled in the Ti-9Mo-3Nb-3V titanium alloy skin. The metal powder core is formed by mixing, by mass, 5%-7% of vanadium powder, 12%-17% of aluminum powder, 3%-5% of molybdenum powder, 3%-5% of iron powder, 1%-3% of silicon powder, 5%-8% of nickel powder and the balance titanium powder. By adding beneficial elements and supplementing burning elements in the welding process, the production cost is greatly reduced, the production efficiency is improved, a surfacing cladding layer has the advantages of being high in strength, good in plasticity and toughness and resistant to abrasion and corrosion, welding flux is not needed for molten pool protection and metallurgical regulation, and slag removal treatment is not needed after surfacing.

Description

technical field [0001] The invention belongs to the technical field of welding material preparation, and in particular relates to a TC4 titanium alloy metal powder-core flux-cored welding ribbon and a preparation method thereof. Background technique [0002] Titanium alloy has the advantages of low density, high specific strength, high specific stiffness, good heat and corrosion resistance, and good machinability. It is a structural metal material with excellent comprehensive properties. It is used in aerospace, weapon equipment, nuclear power equipment and other fields. A large number of applications have been obtained, so it has received extensive attention. Especially in the fields of nuclear submarines and deep submersibles, titanium alloys are favored due to their non-magnetic, light weight and other characteristics. [0003] Titanium alloy shell is a key technical component of nuclear submarines and deep submersibles. During the service and application of equipment, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/32B23K35/40B23K35/02
CPCB23K35/325B23K35/40B23K35/0266
Inventor 方乃文徐锴武鹏博黄瑞生龙伟民尹立孟曹浩陈玉华邹吉鹏张天理秦建王善林刘西洋谢吉林韩鹏薄
Owner HARBIN WELDING INST LTD
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