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A metal powder type stainless steel flux cored welding wire

A flux-cored welding wire and stainless steel technology, applied in metal processing equipment, welding medium, welding equipment, etc., can solve the problems of weld metal brittleness change, unreasonable flux core powder compatibility, and limited application range, etc., and achieve stable arc combustion, Improve the effect of large smoke and dust and simplify the production process

Inactive Publication Date: 2011-12-07
台州海翔焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the use of this flux-cored wire solves the welding requirements for welding 2507 super duplex stainless steel, and the mechanical properties of the weld metal are also better, but it is only for the welding of 2507 super phase stainless steel, and its application range is relatively small, and there is no better solution. Solve the problem of poor weld toughness of the metal powder type stainless steel flux-cored welding wire used for welding steel and large smoke and dust generated due to high deposition speed during welding, and the unreasonable compatibility of the flux core powder may easily cause weld metal damage Fragile change

Method used

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  • A metal powder type stainless steel flux cored welding wire
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Experimental program
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Effect test

Embodiment 1

[0031] The selected drug core is composed of the following components by weight:

[0032] Chromium powder: 15%; Nickel powder: 10%; Molybdenum powder: 0.5%; Manganese powder: 0.2%; Arc stabilizer: 1.0%; The selected powder materials are put into the mixer and mixed evenly for later use;

[0033] Selecting width is 12mm, and thickness is the 308L stainless steel strip of 0.4mm, as the sheath of the flux-cored welding wire of the present invention, after the stainless steel strip that will choose is derusted, degreased, be pressed into U-shaped by forming machine; Then above-mentioned Fill the drug core into the U-shaped groove so that the filling rate is 32.5%, and then close the opening of the U-shaped groove to form an O shape, so that the drug core is wrapped in it, and then draw and reduce the diameter one by one through the wire drawing machine. Finally, the diameter is set to 1.0 mm to obtain the metal powder type stainless steel flux-cored welding wire of the present in...

Embodiment 2

[0035] The selected drug core is composed of the following components by weight:

[0036] Chromium powder: 25%; nickel powder: 10%; molybdenum powder: 0.2%; manganese powder: 0.6%; arc stabilizer: 3.0%; % of chromium nitride powder, the arc stabilizing agent is aluminum powder, the slagging agent is rare earth element (RE), and the rare earth element (RE) is cerium, lanthanum, praseodymium, neodymium, scandium A kind of; The addition of described chromium nitride is conducive to synergistic effect with the slag remover aluminum powder, so that a stable slag remover is formed, and also helps to improve the strength and toughness of the weld; the above-mentioned selected The powder and materials are put into the mixer together and mixed evenly to obtain the drug core of the present invention, which is set aside;

[0037] Selecting width is 8mm, and thickness is the 308L stainless steel strip of 0.7mm, as the sheath of the flux-cored welding wire of the present invention, after ...

Embodiment 3

[0039] The selected drug core is composed of the following components by weight:

[0040] Chromium powder: 22%; nickel powder: 15%; molybdenum powder: 0.1%; manganese powder: 0.4%; arc stabilizer: 2.0%; slag remover: 0.5%; It is a manganese-silicon alloy, and the deslagging agent is a rare earth element (RE), and the rare earth element (RE) is one of cerium, lanthanum, praseodymium, neodymium, and scandium; each powder material selected above Drop into together in the mixer and mix uniformly to obtain the drug core of the present invention, set aside;

[0041] Selecting width is 8mm, and thickness is the 308L stainless steel strip of 0.7mm, as the sheath of the flux-cored welding wire of the present invention, after the stainless steel strip that will choose is derusted, degreased, be pressed into U-shaped by forming machine; Then above-mentioned The uniformly mixed drug core is filled into the U-shaped groove, so that the filling rate is 40%, and then the opening of the U-sh...

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Abstract

The invention relates to a metal-powder type stainless steel flux-cored wire and belongs to the technical field of welding materials. For the metal-powder type stainless steel flux-cored wire, a stainless steel belt serves as an outer skin, and a flux core is filled in the stainless steel belt at the filling rate of 30 to 40 percent to manufacture the flux-cored wire, wherein the flux core comprises chromium powder, nickel powder, molybdenum powder, manganese powder, an arc stabilizer, a deslagging agent and iron powder. The metal-powder type stainless steel flux-cored wire has the advantagesof reasonable compatibility, strong synergistic effect among components, good toughness, high metal strength and high corrosion resistance of a welded seam, stable combustion of the welding wire during welding, and low splattering; the welded seam is bright and elegant in molding; real production processes are simplified without subsequent acid-washing, grinding, polishing and the like; and industrialized production is more facilitated.

Description

technical field [0001] The invention relates to a flux-cored welding wire, in particular to a metal powder type stainless steel flux-cored welding wire, which belongs to the technical field of welding materials. Background technique [0002] Flux-cored welding wire is a new type of welding material that has developed rapidly in recent years, and is the product with the highest technical content among the existing welding materials. Therefore, flux-cored wire is also widely used in the manufacture and repair of construction, bridge, chemical, metallurgy, electric power and industrial repair industries. [0003] Flux-cored wire can be classified according to different situations. For example, according to the different protection conditions, it can be divided into gas shielding (CO 2 , Ar-rich mixed gas) and self-protection; according to the diameter of the wire, it can be divided into a diameter of less than 2.0mm and a diameter of more than 2.0mm; , Calcium fluoride type) ...

Claims

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Application Information

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IPC IPC(8): B23K35/30
Inventor 金鹏鲁永顺
Owner 台州海翔焊接材料有限公司
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