Pure titanium or titanium alloy/carbon steel laminar composite plate welding method

A welding method and technology for composite plates, which can be used in welding equipment, welding/welding/cutting items, arc welding equipment, etc., and can solve problems such as differences in chemical properties

Active Publication Date: 2016-07-27
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Due to the significant differences in the physical and chemical properties of the four elements, it poses a challenge to the control of the cladding amount of each layer and the matching of welding parameters during the welding process

Method used

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  • Pure titanium or titanium alloy/carbon steel laminar composite plate welding method
  • Pure titanium or titanium alloy/carbon steel laminar composite plate welding method
  • Pure titanium or titanium alloy/carbon steel laminar composite plate welding method

Examples

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Embodiment Construction

[0031] see figure 1 , taking explosion + hot-rolled TA1 / X65 titanium / pipeline steel clad plate as the welding test plate, in this example, the total thickness of TA1 / X65 titanium / pipeline steel clad plate is 16mm, and the thickness of X65 carbon steel layer 2 side is 14mm, TA1 The thickness of one side of the pure titanium layer 1 is 2mm.

[0032] use Special compound groove design, TA1 pure titanium layer 1 side groove depth is 4~5mm, angle is 60~70°, width is 6~8mm; X65 pipeline carbon steel layer 2 side groove angle is 60~80° °, the width is 16-22mm, and the depth is 11-20mm. Base X65 steel is welded by MAG, using H08Mn2SiA Welding wire to form carbon steel layer deposited metal zone 6; pure Cu cold spray coating 5 (purity≧99.995%), using cold spray technology; pure V cold spray coating 4 (purity≧99.995%), also using cold spray technology; TA1 The pure titanium layer 1 adopts TIG welding, and uses industrial pure titanium (purity≧99.999%) TA1 welding wire To form ...

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Abstract

The invention discloses a pure titanium or titanium alloy/carbon steel laminar composite plate welding method. A pure titanium or titanium alloy/carbon steel laminar composite plate is formed by metallurgically connecting an industrial pure titanium or titanium alloy plate with a carbon steel plate through explosion and hot rolling processes; a welding groove is finely designed and machined for the composite plate; MAG and TIG fusion welding technologies are combined; the plate-plate butt welding connection is performed for the pure titanium or titanium alloy/carbon steel laminar composite plate by a spraying transition technology; and a spraying layer is excellent in formation, compact and high in bonding force with a lower-layer material, achieves an excellent metallurgy transition connecting effect, and prevents generation of brittle and hard phases in welding lines. The welding method realizes engineering production of metallurgy butt welding connection of the pure titanium or titanium alloy/carbon steel laminar composite plate, is better in appearance and excellent in mechanical performance of metallurgy connection welding lines, guarantees corrosion resistance of the welding lines, and realizes reliable metallurgy connection of the welding lines.

Description

Technical field: [0001] The invention belongs to the technical field of composite plate welding, and in particular relates to a welding method for pure titanium or titanium alloy / carbon steel layered composite plates. Background technique: [0002] The loss caused by corrosion in my country is seriously affected every year. Statistics show that since 2000, my country's annual corrosion loss has exceeded 500 billion yuan, accounting for about 5% of the gross national product. Pipeline corrosion accounts for a considerable proportion of it, and this figure is still on the rise. The layered bimetallic composite material can realize the perfect metallurgical combination of different metals with extremely different strengths, melting points, and thermal expansion coefficients. It integrates the advantages of different materials and gives full play to the characteristics of different materials. The low manufacturing cost makes it possible to apply rare and precious metals in many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/173B23K9/235
CPCB23K9/173B23K9/235B23K2103/16
Inventor 毕宗岳杨军刘海璋田磊
Owner BC P INC CHINA NAT PETROLEUM CORP
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