CN102601546A - Stainless steel flux cored wire - Google Patents
Stainless steel flux cored wire Download PDFInfo
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- CN102601546A CN102601546A CN2012100678307A CN201210067830A CN102601546A CN 102601546 A CN102601546 A CN 102601546A CN 2012100678307 A CN2012100678307 A CN 2012100678307A CN 201210067830 A CN201210067830 A CN 201210067830A CN 102601546 A CN102601546 A CN 102601546A
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- cored wire
- stainless steel
- welding
- flux cored
- flux
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Abstract
The invention discloses a stainless steel flux cored wire, which comprises a stainless steel skin and a flux core, wherein percentages of chemical constituents and contents of the flux core in the total weight of the welding line are that: 0.6-2% of Mn, 0.9-1.1% of Si, 0.01-0.03% of S, 0.03-0.04% of P, 0.3-0.5% of Cu, 23-25% of Cr, 12.5-14% of Ni and 0.5% of Mo. The stainless steel flux cored wire, disclosed by the invention, has the advantages of point corrosion resistance and low-temperature toughness.
Description
Technical field
The present invention relates to the welding material that metal solder is used, be specifically related to a kind of stainless flux-cored wire.
Background technology
Present disclosed stainless steel welding stick is used for arc welding, often adds the intensity that N improves weld metal, but incompatible requirement to pitting corrosion resistance and low-temperature flexibility.
Summary of the invention
The objective of the invention is to provide the stainless flux-cored wire of a kind of pitting corrosion resistance and low-temperature flexibility.
The present invention realizes that the technical scheme of above-mentioned purpose is, a kind of stainless flux-cored wire comprises stainless crust and medicine core; Its innovative point is: the percentage that the chemical composition of said medicine core and content account for the welding wire gross weight is: Mn:0.6～2%, Si:0.9～1.1%, S:0.01～0.03%; P:0.03～0.04%, Cu:0.3～0.5%, Cr:23～25%; Ni:12.5～14%, Mo:0.5%.
The content of C accounts for the percentage of welding wire gross weight and is in said carbon steel crust and the medicine core: 0.01～0.04%.
The present invention since Si content 0.9～1.1%, so good pitting corrosion resistance and low-temperature flexibility can be arranged.
The effect of C is the intensity that keeps weld metal, suppresses oxidized byproduct and infiltrates weld metal inside, ensures the quality of welding position.And, can also increase electric arc property, welding slag is fused into from branch, avoid the drawback of insufficient (incomplete) penetration.
Si is a deoxidier, and effect is the oxygen content that reduces in the deposited metal, and increases the viscosity of welding slag, improves the flowability of deposited metal.
Mn is deoxidier and desulfurizing agent, can chemical reaction take place with S, generates MnS, thereby prevents to generate FeS, through separating S, can suppress the generation of low-melting compound and the generation of hot cracking phenomenon.
The effect of Ni and Mo is between high heat input weldering and high level, to make the weld metal tissue become stable in the welding under the temperature conditions, ensures the toughness and the intensity of weld metal.
The specific embodiment
A kind of stainless flux-cored wire comprises stainless crust and medicine core, and the percentage that the chemical composition of said medicine core and content account for the welding wire gross weight is: Mn:0.6～2%; Si:0.9～1.1%, S:0.01～0.03%, P:0.03～0.04%; Cu:0.3～0.5%; Cr:23～25%, Ni:12.5～14%, Mo:0.5%.
The content of C accounts for the percentage of welding wire gross weight and is in said carbon steel crust and the medicine core: 0.01～0.04%.
Stable being easy to of this welding wire skill on smelting realizes that the drawing welding wire function admirable satisfies the solder technology requirement of industries such as war industry's production, shipbuilding, aviation.Welding wire of the present invention has good welding technological properties, welding point have intensity height, malleability good, good corrosion resistance arranged.Specimen test is selected the corrosion resistant plate suitable with deposited metal composition for use.Make growth 350nm, wide 150mm, machined groove and root face in the longitudinal direction.It is 30% that gas is selected Ar for use, and He is 70% mixed platform gas.Select the welding wire of diameter of phi 1.2 of the present invention for use.The welding bead welding method: wlding electric current (I/A) 160～180, voltage (Z/V) 24, current polarity DCRP carries out 100% range estimation, X ray, penetrant inspection to this welded specimen.The visual inspection specimen surface is shaped good, and the penetrant inspection operating temperature is 20, and " C, ZTYS infiltration chaste tree is asked greater than 10min during infiltration.X radiographic inspection, conditions of exposure are 5mA, 2min, and focal length FFA 600am, fmin=120mm, sample reach B level requirement among the EN30042.
Claims (2)
1. a stainless flux-cored wire comprises stainless crust and medicine core, it is characterized in that: the percentage that the chemical composition of said medicine core and content account for the welding wire gross weight is: Mn:0.6～2%; Si:0.9～1.1%, S:0.01～0.03%, P:0.03～0.04%; Cu:0.3～0.5%; Cr:23～25%, Ni:12.5～14%, Mo:0.5%.
2. stainless flux-cored wire according to claim 1 is characterized in that: the content of C accounts for the percentage of welding wire gross weight and is in said carbon steel crust and the medicine core: 0.01～0.04%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100678307A CN102601546A (en) | 2012-03-15 | 2012-03-15 | Stainless steel flux cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100678307A CN102601546A (en) | 2012-03-15 | 2012-03-15 | Stainless steel flux cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102601546A true CN102601546A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100678307A Pending CN102601546A (en) | 2012-03-15 | 2012-03-15 | Stainless steel flux cored wire |
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| CN (1) | CN102601546A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195925A (en) * | 2014-06-11 | 2015-12-30 | 上海司迈尔特种合金材料有限公司 | Carbon dioxide arc welding wire with small diameter of 1.6 mm and high alloy content |
| CN106112311A (en) * | 2016-08-05 | 2016-11-16 | 天长市通联焊业有限公司 | A kind of flux-cored wire with excellent toughness |
| CN109926751A (en) * | 2019-04-18 | 2019-06-25 | 北京工业大学 | A kind of 314 heat-resistance stainless steel metal core welding wires |
| CN113352021A (en) * | 2021-06-03 | 2021-09-07 | 西安热工研究院有限公司 | Flux-cored wire for welding chromium-nickel austenitic stainless steel and preparation method thereof |
| CN114173985A (en) * | 2019-07-01 | 2022-03-11 | 株式会社神户制钢所 | Austenitic stainless steel flux-cored wire, welding metal and welding method |
-
2012
- 2012-03-15 CN CN2012100678307A patent/CN102601546A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195925A (en) * | 2014-06-11 | 2015-12-30 | 上海司迈尔特种合金材料有限公司 | Carbon dioxide arc welding wire with small diameter of 1.6 mm and high alloy content |
| CN106112311A (en) * | 2016-08-05 | 2016-11-16 | 天长市通联焊业有限公司 | A kind of flux-cored wire with excellent toughness |
| CN106112311B (en) * | 2016-08-05 | 2019-05-21 | 天长市通联焊业有限公司 | A kind of flux-cored wire with excellent toughness |
| CN109926751A (en) * | 2019-04-18 | 2019-06-25 | 北京工业大学 | A kind of 314 heat-resistance stainless steel metal core welding wires |
| CN114173985A (en) * | 2019-07-01 | 2022-03-11 | 株式会社神户制钢所 | Austenitic stainless steel flux-cored wire, welding metal and welding method |
| CN113352021A (en) * | 2021-06-03 | 2021-09-07 | 西安热工研究院有限公司 | Flux-cored wire for welding chromium-nickel austenitic stainless steel and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |