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CO2 protective high-toughness carbon steel flux-cored wire

A technology of flux-cored welding wire and gas shielding, which is applied in the direction of welding medium, welding equipment, welding equipment, etc., can solve the problems of low low-temperature impact performance and insufficient stability, and achieve the effects of stable impact performance, reduced addition amount, and stable mechanical properties

Active Publication Date: 2015-04-22
常州市正阳焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a CO 2 Gas shielded high toughness carbon steel flux cored wire

Method used

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  • CO2 protective high-toughness carbon steel flux-cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Select a 10*0.4mm stainless steel strip, first roll it into a U shape, take 38 grams of rutile rutile; 22 grams of iron powder; 16.5 grams of silicon manganese alloy; 2.0 grams of low carbon ferromanganese; 3.5 grams of quartz; 3.0 grams of alumina 4.5 grams of zircon sand; 3.0 grams of aluminum fluoride; 4.0 grams of titanium potassium alloy; 3.5 grams of boron powder. Mix the above-mentioned components uniformly and put them into the U-shaped stainless steel tank with a filling rate of 18%. Close the U-shaped tank so that the powder is wrapped in it. Then the final flux-cored welding wire is obtained after drawing and diameter reduction, and the label is P-1.

Embodiment 2

[0021] Select a 10*0.4mm stainless steel strip, first roll it into a U shape, take 34 grams of rutile rutile; 26 grams of iron powder; 18.5 grams of silicon manganese alloy; 1.8 grams of low carbon ferromanganese; 2.0 grams of quartz; 2.8 grams of alumina 3.8 grams of zircon sand; 2.6 grams of barium fluoride; 5.5 grams of nickel-potassium alloy; 3.0 grams of boron powder. Mix the aforementioned components uniformly and put them into the U-shaped stainless steel belt tank with a filling rate of 20%. Close the U-shaped tank so that the medicine powder is wrapped in it. Then the final flux-cored welding wire is obtained after drawing and diameter reduction, and the label is P-2.

Embodiment 3

[0023] Select a 10*0.4mm stainless steel strip, first roll it into a U shape, take 36 grams of rutile rutile; 23 grams of iron powder; 15.5 grams of silicon manganese alloy; 2.2 grams of low-carbon ferromanganese; 4.0 grams of quartz; 3.5 grams of alumina 3.8 grams of zircon sand; 3.5 grams of calcium fluoride; 4.5 grams of nickel-potassium alloy; 2.0 grams of boron powder and 2.0 grams of niobium powder. Mix the aforementioned components uniformly and put them into the U-shaped stainless steel belt tank with a filling rate of 20%. Close the U-shaped tank so that the medicine powder is wrapped in it. Then the final flux-cored welding wire is obtained after drawing and diameter reduction, and the label is P-3.

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Abstract

The invention relates to a CO2 protective high-toughness carbon steel flux-cored wire. The flux core is prepared from the following components in percentage by mass: 32 to 40% of rutile, 20 to 26% of iron powder, 15 to 19% of silicomanganese, 1.5 to 2.5% of low-carbon ferromanganese, 2 to 4% of quartz, 2.5 to 3.5% of aluminium oxide, 2.5 to 5% of zircon sand, 2 to 4% of fluoride, 3 to 6% of alloy element, and 2 to 5% of rare element. According to the flux-cored wire, the quantity of added slagging components and other functional components is coordinated, the quantity of added silicomanganese is controlled, and the quantity of added alloy elements is decreased, so as to decrease the burning loss of the alloy element; the trace elements such as boron in a formula are accurately controlled to enable stable mechanical performance of deposited metal; therefore, the low-temperature impact performance is particularly greatly improved, and moreover, the impact performance stability is improved.

Description

technical field [0001] The invention relates to a metal welding flux-cored wire, in particular to a CO 2 Gas shielded high toughness carbon steel flux cored wire. Background technique [0002] Flux-cored wire is a new type of welding material that has developed rapidly in recent years. Flux-cored wire is widely used in aviation, aerospace, shipbuilding, nuclear power, automobile manufacturing, bridges, machinery, construction, petrochemical and other fields. Compared with manual electrode and argon arc welding wire, flux-cored wire has obvious technological advantages, mainly because it changes the intermittent welding process into a continuous production mode, thereby reducing the number of welding joints, improving the quality of welds, and improving Production efficiency, saving energy. At the same time, various welding materials for different purposes can be conveniently designed by adjusting the types and proportions of the flux core additives. Because its alloy comp...

Claims

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Application Information

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IPC IPC(8): B23K35/22
CPCB23K9/16B23K35/0266B23K35/3608B23K35/368
Inventor 嵇文斌宋骥
Owner 常州市正阳焊接材料有限公司