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Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion

A technology for surfacing electrodes and base alloys, applied in welding media, welding equipment, welding equipment, etc., can solve problems such as unsatisfactory stability, and achieve the advantages of inhibiting zinc-iron alloying reaction, reducing zinc-iron alloying reaction, and reducing wettability. Effect

Inactive Publication Date: 2006-07-19
陈冬
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AI Technical Summary

Problems solved by technology

In order to improve the service life of the zinc pot and the structural parts in the pot, surfacing welding materials are needed to repair the surface corroded by the zinc liquid and the aluminum-containing zinc-based alloy. J422 low-carbon welding rod is used, its stability in the aluminum-zinc liquid is very unsatisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0010] Embodiment two: get 1Kg of rutile, 8kg part of marble, 9Kg of fluorite, 5Kg of feldspar, 1Kg of mica, 0.1Kg of chromium powder, 10Kg of ferrosilicon, 10Kg of ferromanganese, 8Kg of ferromolybdenum, 0.1Kg of aluminum iron, nickel powder 0.1Kg, Titanium dioxide 1Kg, titanium iron 5Kg, rare earth 0.1Kg. The preparation method is the same as in Example 1.

Embodiment 3

[0011] Embodiment three: get 8Kg of chromium powder, 25Kg of marble, 30Kg of fluorite, 16Kg of feldspar, 5Kg of mica, 25Kg of chromium powder, 30Kg of ferrosilicon, 15Kg of ferromanganese, 16Kg of ferromolybdenum, 15Kg of aluminum iron, 25Kg of nickel powder, 10Kg of titanium dioxide , Titanium iron 20Kg, rare earth 5Kg. The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a build-up welding rod resistant to the corrosion of liquid state Zn and Al-Zn based alloy, composed of rutile, marble, fluorite, feldspar, mica, Cr powder, silicon iron, ferromanganese, molybdenum-iron, aluminium iron, Ni powder, titanium pigment, ferrotitanium and rare earth. It heightens Si content (Si>2%), and adds in Cr to prohibit zinc-iron alloying reaction, increases Mn content to reduce the soakage of Zn liquid to steel base, and increases Ni and Cr to effectively reduce Al-Zn liquid containing zinc-iron alloying reaction. It reasonably selects Si, Mn, Ni, Cr, Mo, etc in the deposited metal to make the deposited metal have good Zn liquid corrosion resistance. It is applied to the corrosion resisting of 0-7% Al containing Zn liquid and liquid Zn based alloy. Its life of built-up welding layer is 3-50 times of low-carbon (C<0.03%), low silicon (Si<0.03%) steels.

Description

technical field [0001] The invention relates to a surfacing welding electrode resistant to corrosion of liquid zinc and aluminum-containing zinc-based alloys. Background technique [0002] As we all know, when the steel material is in contact with the zinc liquid, the liquid zinc and the steel matrix have physical and chemical effects. The elements in the steel and the alloying elements in the zinc solution have a very important influence on the zinc-iron reaction rate and the composition of the reaction product—the zinc-iron alloy phase. The classic theory of hot-dip galvanizing proposes that elements such as carbon, silicon, and phosphorus in steel have a great influence on the zinc-iron reaction. The larger the size, in order to reduce the corrosion of iron by the zinc liquid, generally use low-silicon, low-carbon steel or industrial pure iron to make zinc pots and structural parts. Aluminum is the most important alloying element in hot-dip galvanizing. Adding aluminum ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/362B23K9/04
Inventor 陈冬李凤阁金向雷刘汇玲
Owner 陈冬
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