A kind of titanium-iron-stainless steel three-layer composite plate butt welding process method

A process method, stainless steel technology, applied in the direction of manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of high welding joint strength, high welding efficiency, low production cost, etc. good performance effect

Active Publication Date: 2021-04-02
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems existing in the prior art, and to provide a butt welding process for titanium-iron-stainless steel three-layer composite plates, which is especially suitable for composite thin plates, and simultaneously solves the problem of welding titanium-iron dissimilar metals. It is prone to the problem of brittle intermetallic compounds, and also retains its original corrosion resistance when welding iron-stainless steel dissimilar steels. This method has high yield, low production cost, high welding efficiency, and high strength of welded joints. The tensile strength of the joint reaches more than 75% of the tensile strength of the base metal

Method used

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  • A kind of titanium-iron-stainless steel three-layer composite plate butt welding process method
  • A kind of titanium-iron-stainless steel three-layer composite plate butt welding process method
  • A kind of titanium-iron-stainless steel three-layer composite plate butt welding process method

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Effect test

Embodiment 1

[0039] In this embodiment, welding is carried out by taking a 1.5mm titanium-iron-stainless steel three-layer composite plate as an example, wherein the base layer is industrial pure iron with a thickness of 1mm, the thickness of the titanium cladding is 0.2mm, and the thickness of the stainless steel cladding 0.3mm. For the butt welding process of the titanium-iron-stainless steel three-layer composite plate, its schematic diagram is shown in figure 1 , using the following welding scheme:

[0040] Step 1: Processing welding groove

[0041] Before welding, the metal on both sides of the base material of the titanium-iron-stainless steel three-layer composite plate is ground to remove the oxide on the surface of the cladding.

[0042] The titanium-iron-stainless steel three-layer composite plate is clamped by the fixture, and the groove is processed on the milling machine. One side of the titanium cladding is facing down, and the iron base layer and stainless steel cladding ...

Embodiment 2

[0055] In this embodiment, welding is carried out by taking a 2mm titanium-iron-stainless steel three-layer composite plate as an example, wherein the base layer is industrial pure iron with a thickness of 1.4mm, the thickness of the titanium cladding is 0.3mm, and the thickness of the stainless steel cladding 0.3mm. For the butt welding process of the titanium-iron-stainless steel three-layer composite plate, the following welding scheme is adopted:

[0056] Step 1: Processing welding groove

[0057] The base material of the titanium-iron-stainless steel three-layer composite plate is processed, and the edges to be welded in the base material of the titanium-iron-stainless steel three-layer composite plate are mechanically processed by a milling machine, and the stainless steel cladding and iron base layer are processed, and the titanium is retained. The cladding, as the welding groove, the width of the remaining titanium cladding is 1.0mm, and the base material of the clad ...

Embodiment 3

[0067] In this embodiment, welding is carried out by taking a 2mm titanium-iron-stainless steel three-layer composite plate as an example, wherein the base layer is industrial pure iron with a thickness of 1.4mm, the thickness of the titanium cladding is 0.3mm, and the thickness of the stainless steel cladding 0.3mm. For the butt welding process of the titanium-iron-stainless steel three-layer composite plate, the following welding scheme is adopted:

[0068] Step 1: Processing welding groove

[0069] The base material of the titanium-iron-stainless steel three-layer composite plate is processed, and the edges to be welded in the base material of the titanium-iron-stainless steel three-layer composite plate are mechanically processed by a milling machine, and the stainless steel cladding and iron base layer are processed, and the titanium is retained. The cladding, as the welding groove, the width of the remaining titanium cladding is 1.0mm, and the base material of the clad ...

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Abstract

The invention discloses a butt welding process method of a titanium-iron-stainless steel three-layer composite plate, which belongs to the field of layered dissimilar metal composite plate welding. The method first processes the base material of the titanium-iron-stainless steel three-layer composite plate to prepare the base material with a welding groove; prepares the weld filler metal according to the welding groove form of the welded joint; prepares the base material with the welding groove The material is placed in the welding fixture, the titanium cladding is subjected to the first pass of bottom welding, and then the weld filler metal is placed, and the second pass of upper metal welding is performed to obtain the butt joint of the titanium-iron-stainless steel three-layer composite plate . This method is especially suitable for composite thin plates. At the same time, it solves the problem of brittle intermetallic compounds when welding titanium-iron dissimilar metals, and also retains its original corrosion resistance when welding iron-stainless steel dissimilar steels. The produced by this method The yield is high, the production cost is low, the welding efficiency is high, the strength of the welded joint is high, and the tensile strength of the welded joint reaches more than 75% of the tensile strength of the base metal.

Description

technical field [0001] The invention relates to the technical field of layered dissimilar metal composite plate welding, in particular to a butt welding process for a titanium-iron-stainless steel three-layer composite plate. Background technique [0002] Titanium-iron-stainless steel three-layer composite plate is a new type of structural material, and its original design intention is to be applied to the original slab for making cookers in real life. Titanium alloy has good biocompatibility and is non-toxic to the human body. It is used as the inner layer to contact food; industrial pure iron is used as the middle layer because of its good thermal conductivity, which is conducive to the control of the heat during the cooking process and saves the cost of the plate. Cost; one side of the stainless steel is in contact with the flame, because of its high strength, it can reduce accidents such as pot bottom depressions and potholes caused by collisions. At the same time, tita...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/00B23K33/00B23K28/02B23K9/167B23K10/02
CPCB23K9/167B23K10/02B23K28/02B23K31/00B23K33/00B23K33/002B23K33/004
Inventor 于宝义吕舒宁郑黎于博宁
Owner SHENYANG POLYTECHNIC UNIV
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