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Stainless steel welding stick

A stainless steel and welding wire technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of welding rod waste, low production efficiency, affecting the corrosion resistance of welds, etc.

Inactive Publication Date: 2008-09-10
WUHAN TEMO WELDING CONSUMABLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strong growth of stainless steel consumption will surely drive the rapid growth of the welding market. On the one hand, the improvement of steel quality will promote the replacement of stainless steel welding materials. The pace of adjustment is accelerated. At present, the welding methods of domestic austenitic stainless steel are mainly manual arc welding, argon arc welding, and submerged arc welding. , the welding rod is wasted a lot and seriously affects the welding quality
If TIG welding is adopted, the production efficiency is low and the cost is high
If solid core MIG welding or submerged arc automatic welding is used, the corrosion resistance of the weld will be seriously affected due to the excessive heat input or the carbonization of the weld seam.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A stainless steel welding wire, including an E304L stainless steel sheath and a coated flux core, wherein the proportion of each component in the welding core to the total weight of the welding wire is: titanium dioxide: 3.0%, silicon dioxide: 0.75%, zirconium dioxide: 1.0%, aluminum oxide: 0.05%, metal fluoride (converted into F): 0.1%, bismuth oxide: 0.025%, and the rest is any combination of metal chromium, metal nickel, metal manganese and iron powder.

[0026] The flux core accounts for 20% of the total weight of the welding wire.

[0027] The above-mentioned metal fluoride is selected from a combination of cryolite, sodium fluoride and lithium fluoride, and the weight ratio of the combination is arbitrary.

[0028] The aforementioned titanium dioxide is derived from rutile.

[0029] The aforementioned silica originates from: potassium feldspar.

[0030] A fluxing agent is also added to the above drug core, the amount and type of addition are: 0.25% solid potassi...

Embodiment 2

[0033]A stainless steel welding wire, including a stainless steel sheath and a wrapped flux core, wherein, the proportion of each component in the welding core to the total weight of the welding wire is: titanium dioxide: 7.0%, silicon dioxide: 3.0%, zirconium dioxide: 2.5% %, aluminum oxide: 1.0%, metal fluoride (converted into F): 0.5%, bismuth oxide: 0.05%, and the rest are metal chromium, metal nickel, metal manganese and iron powder.

[0034] The flux core accounts for 26% of the total weight of the welding wire.

[0035] The above-mentioned metal fluorides are selected from the combination of cryolite, sodium fluoride and lithium fluoride, and the weight ratio is arbitrary.

[0036] The aforementioned titanium dioxide is derived from rutile.

[0037] The aforementioned silica originates from: potassium feldspar, albite, quartz, zircon sand.

[0038] A fluxing agent is also added to the above-mentioned drug core, and its added amount and added type are: 0.5% solid potas...

Embodiment 3

[0041] A stainless steel welding wire, including an E304L stainless steel sheath and a wrapped flux core, wherein the proportion of each component in the welding core to the total weight of the welding wire is: titanium dioxide: 7.0%, silicon dioxide: 0.75%, zirconium dioxide: 2.5%, aluminum oxide: 0.05%, metal fluoride (converted into F): 0.5%, bismuth oxide: 0.025%, and the rest are metal chromium, metal nickel, metal manganese and iron powder.

[0042] The flux core accounts for 20% of the total weight of the welding wire.

[0043] The above-mentioned metal fluorides are selected from: cryolite.

[0044] The aforementioned titanium dioxide is derived from rutile.

[0045] The silica mentioned above is derived from: zircon sand.

[0046] A fluxing agent is also added to the above-mentioned drug core, and its addition amount and addition type are: 0.25% solid potassium sodium water glass and 0.5% metal fluoride, and the metal fluoride is selected from: cryolite, sodium fluo...

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PUM

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Abstract

The invention relates to welding material, in particular to a stainless steel welding material, belonging to the field of the welding material. Stainless steel welding wire of the invention comprises a sheath and a welding core coated with flux-core; wherein, the weight ratios of each component in the welding core in the total weight of the welding wire are that titanium dioxide accounts for 3.0 to 7.0 percent, silicon dioxide accounts for 0.75 to 3.0 percent, zirconium dioxide accounts for 1.0 to 2.5 percent, aluminum sesquioxide accounts for 0.05 to 1.0 percent, metal fluoride (conversed into F) accounts for 0.1 to 0.5 percent, bismuth oxide accounts for 0.025 to 0.05 percent, and the rest is metal powder. The product of the invention used for welding the stainless steel has the advantages of the high efficiency and good welding quality.

Description

technical field [0001] The present invention relates to welding materials, more specifically to a stainless steel welding material. It belongs to the field of welding materials. Background technique [0002] In recent years, with the rapid development of my country's national economy, my country's stainless steel industry has also developed rapidly, which has attracted great attention at home and abroad. In 2000, the apparent consumption of stainless steel in my country reached 1.7 million tons, surpassing Japan, the world's largest stainless steel consumer, In 2001, it increased by 30%, reaching 2.3 million tons, surpassing the United States and becoming the world's largest stainless steel consumer. By 2007, China's apparent consumption of stainless steel will reach 5 million tons, which is equivalent to the current consumption of the whole of Europe. The strong growth of stainless steel consumption will surely drive the rapid growth of the welding market. On the one hand, ...

Claims

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Application Information

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IPC IPC(8): B23K35/368
Inventor 汪昌红
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD
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