CN108000001B - Novel stainless steel flux-cored wire - Google Patents
Novel stainless steel flux-cored wire Download PDFInfo
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- CN108000001B CN108000001B CN201810066828.5A CN201810066828A CN108000001B CN 108000001 B CN108000001 B CN 108000001B CN 201810066828 A CN201810066828 A CN 201810066828A CN 108000001 B CN108000001 B CN 108000001B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3608—Titania or titanates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
Abstract
The invention discloses a novel stainless steel flux-cored wire, which comprises a flux core and a sheath coated outside the flux core, wherein the flux core comprises the following components in parts by weight: 20-40 parts of rutile, 2-10 parts of feldspar, 2-5 parts of metal manganese, 15-25 parts of metal chromium, 10-15 parts of ferromolybdenum, 10-20 parts of metal nickel, 2-5 parts of arc stabilizer, 2-5 parts of ferroferric oxide, 1-5 parts of sodium fluoride and 1-5 parts of quartz powder, wherein in the flux-cored powder consisting of the components, the total weight percentage of the following components is as follows: 18 to 20 percent of Cr, 10 to 14 percent of Ni, 2 to 3 percent of Mo, less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, less than or equal to 0.03 percent of S, and less than or equal to 0.045 percent of P. The invention has excellent performance in all welding positions, almost no oxide film on the surface of a welding seam, smooth and stable electric arc, extremely low splashing rate, flashing and smooth welding bead, easily removable welding slag and better intercrystalline corrosion resistance.
Description
Technical Field
The invention relates to the technical field of welding materials, in particular to a novel stainless steel flux-cored wire.
Background
The prior stainless steel flux-cored wire has the defects of serious oxidation film on the surface of a welding seam, rough surface of the welding seam, general splashing during welding, poor intergranular corrosion resistance, poor all-position welding and even molten iron falling phenomenon of some poor all-position welding products.
Disclosure of Invention
The invention provides a novel stainless steel flux-cored wire capable of being welded in all positions, aiming at overcoming the defects, and the novel stainless steel flux-cored wire comprises a flux core and a sheath coated outside the flux core, wherein the flux core comprises the following components in parts by weight: 20-40 parts of rutile, 2-10 parts of feldspar, 2-5 parts of metal manganese, 15-25 parts of metal chromium, 10-15 parts of ferromolybdenum, 10-20 parts of metal nickel, 2-5 parts of arc stabilizer, 2-5 parts of ferroferric oxide, 1-5 parts of sodium fluoride and 1-5 parts of quartz powder, wherein in the flux-cored powder consisting of the components, the total weight percentage of the following components is as follows: 18 to 20 percent of Cr, 10 to 14 percent of Ni, 2 to 3 percent of Mo, less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, less than or equal to 0.03 percent of S, and less than or equal to 0.045 percent of P.
The novel stainless steel flux-cored wire comprises an arc stabilizer, a flux-cored wire body and a flux-cored wire body.
The novel stainless steel flux-cored wire has the weight ratio of potassium oxide to sodium oxide of 3: 1.
the novel stainless steel flux-cored wire comprises a sheath which is a 00Cr19Ni10(304L) steel strip, wherein the steel strip comprises the following components in percentage by weight: less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, 18 to 20 percent of Cr, 8 to 12 percent of Ni, less than or equal to 0.03 percent of S, and less than or equal to 0.035 percent of P.
The novel stainless steel flux-cored wire has the powder filling rate of 23-25%.
The invention has the beneficial effects that:
the invention has excellent performance in all welding positions, almost no oxide film on the surface of a welding seam, smooth and stable electric arc, extremely low splashing rate, flashing and smooth welding bead, easily removable welding slag and better intercrystalline corrosion resistance.
Detailed Description
The present invention will now be described in further detail.
A novel stainless steel flux-cored wire comprises a flux core and a sheath coated outside the flux core, wherein the filling rate of the powder is 23% -25%. The sheath is a 00Cr19Ni10(304L) steel strip which comprises the following components in percentage by weight: less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, 18 to 20 percent of Cr, 8 to 12 percent of Ni, less than or equal to 0.03 percent of S, and less than or equal to 0.035 percent of P. The mechanical property of 304L stainless steel is that the yield strength is more than or equal to 205N/mm2Tensile strength is more than or equal to 520N/mm2The elongation is more than or equal to 40 percent.
The medicine core comprises the following components in parts by weight: 20-40 parts of rutile, 2-10 parts of feldspar, 2-5 parts of manganese metal, 15-25 parts of chromium metal, 10-15 parts of ferromolybdenum, 10-20 parts of nickel metal, 2-5 parts of an arc stabilizer, 2-5 parts of ferroferric oxide, 1-5 parts of sodium fluoride and 1-5 parts of quartz powder, wherein the arc stabilizer comprises the following components in parts by weight: 1 potassium oxide and sodium oxide. In the flux core powder composed of the components, the total weight percentage of the following components is as follows: 18 to 20 percent of Cr, 10 to 14 percent of Ni, 2 to 3 percent of Mo, less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, less than or equal to 0.03 percent of S, and less than or equal to 0.045 percent of P.
The invention adopts a 304L steel belt as a sheath, five groups of uniformly mixed flux-cored powder are wrapped by the steel belt, and the five groups of flux-cored wires with the diameters of 1.2mm are formed by rolling and drawing, namely, the stainless steel welding flux-cored wires of the embodiments 1 to 5. The components in the medicine core are prepared according to the following mixture ratio of the table 1, and the unit g
Table 1:
the stainless steel flux-cored wire produced according to the proportion of the embodiment 1 has the advantages of low content of metal manganese, chromium, nickel and molybdenum, high proportion of rutile and feldspar, serious oxidation film on the surface of a welding seam, rough surface of the welding seam, common splashing during welding and poor all-position welding. No physical testing is done.
The chemical composition wire of the molten metal of the stainless steel flux-cored welding produced according to the proportion in the embodiment 2 has proper contents of metal manganese, chromium, nickel and molybdenum, but has lower content of an arc stabilizer, serious oxide film on the surface of a welding seam, smooth and increased splashing on the surface, and better all-position welding than the embodiment 1, so that no physical experiment is carried out.
The stainless steel flux-cored wire produced according to the proportion in the embodiment 3 has appropriate content of metal manganese, chromium, nickel and molybdenum, but has lower content of ferroferric oxide, improved oxide film on the surface of a welding seam, smooth surface and slightly large splashing, and is welded at all positions as in the embodiment 2, the physical experiment data is qualified, but the intergranular corrosion resistance test is unqualified.
The stainless steel flux-cored wire produced according to the proportion of the embodiment 4 has the advantages of proper content of the molten metal chemical components, basically no oxide film on the surface of a welding seam, smooth surface, small splashing, excellent all-position welding, qualified physical experiment data and barely qualified intercrystalline corrosion resistance experiment.
The stainless steel flux-cored wire produced according to the proportion in the embodiment 5 has the advantages of proper content of the molten metal chemical components, no oxide film on the surface of a welding seam, smooth surface, small splashing, excellent all-position welding, qualified physical experiment data and qualified intergranular corrosion resistance test.
In conclusion, the stainless steel flux-cored wire produced according to the proportion has the advantages of little oxidation film on the surface of a welding seam, smooth and stable electric arc, extremely low splashing rate, bright and smooth welding bead, easy removal of welding slag, excellent performance in all welding positions and better intercrystalline corrosion resistance.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The novel stainless steel flux-cored wire is characterized by comprising a flux core and a sheath coated outside the flux core, wherein the flux core comprises the following components in parts by weight:
in the flux core powder composed of the components, the total weight percentage of the following components is as follows: 18 to 20 percent of Cr, 10 to 14 percent of Ni, 2 to 3 percent of Mo, less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, less than or equal to 0.03 percent of S, and less than or equal to 0.045 percent of P;
the sheath is a 00Cr19Ni10(304L) steel strip which comprises the following components in percentage by weight: less than or equal to 0.03 percent of C, less than or equal to 1 percent of Si, less than or equal to 2 percent of Mn, 18 to 20 percent of Cr, 8 to 12 percent of Ni, less than or equal to 0.03 percent of S, and less than or equal to 0.035 percent of P.
2. The novel stainless steel flux-cored wire of claim 1, wherein the arc stabilizer comprises potassium oxide and sodium oxide.
3. The novel stainless steel flux-cored wire of claim 2, wherein a weight ratio of potassium oxide to sodium oxide is 3: 1.
4. the novel stainless steel flux-cored wire of claim 1, wherein a powder filling rate is 23-25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066828.5A CN108000001B (en) | 2018-01-24 | 2018-01-24 | Novel stainless steel flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066828.5A CN108000001B (en) | 2018-01-24 | 2018-01-24 | Novel stainless steel flux-cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108000001A CN108000001A (en) | 2018-05-08 |
| CN108000001B true CN108000001B (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810066828.5A Active CN108000001B (en) | 2018-01-24 | 2018-01-24 | Novel stainless steel flux-cored wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN108000001B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604867A (en) * | 2018-12-30 | 2019-04-12 | 柳州凯通新材料科技有限公司 | A kind of highly wear-resisting alloy steel welding wire medicine core |
| CN110102930A (en) * | 2019-04-29 | 2019-08-09 | 江苏九洲新材料科技有限公司 | A kind of E304L flux-cored wire matched with 304L steel |
| CN112872653A (en) * | 2021-02-04 | 2021-06-01 | 苏州鑫之泰焊接材料有限公司 | Stainless steel flux-cored wire without gas protection and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171968A (en) * | 1991-09-30 | 1992-12-15 | Inco Alloys International, Inc. | Low porosity welding electrode |
| CN100467190C (en) * | 2007-10-11 | 2009-03-11 | 北京工业大学 | Full-position soldering biphase stainless steel flux-cored wire |
| CN101690996B (en) * | 2009-10-16 | 2011-07-20 | 河北翼辰实业集团有限公司 | All-position niobium -contained stainless steel flux-cored wire |
| CN101804533A (en) * | 2010-04-27 | 2010-08-18 | 上海林肯电气有限公司 | Gas shielded flux-cored wire for welding with low temperature, high toughness and full positions |
| CN102451961B (en) * | 2010-10-20 | 2014-01-01 | 中冶焊接科技有限公司 | Flux-cored wire for austenitic stainless steel welding |
| CN102179640B (en) * | 2011-04-26 | 2013-03-13 | 武汉铁锚焊接材料股份有限公司 | High-strength and high-toughness metal powder flux-cored wire |
| CN102229029B (en) * | 2011-05-30 | 2013-06-19 | 中冶焊接科技有限公司 | Flux-cored wire for austenitic stainless steel all-position welding |
| CN104117789B (en) * | 2014-08-06 | 2016-05-25 | 武汉铁锚焊接材料股份有限公司 | A kind of low-temperature steel flux-cored wire |
| CN104588915B (en) * | 2014-12-09 | 2016-08-24 | 天津大桥金属焊丝有限公司 | A kind of hot forged mould Gas Shielded welding flux-cored wire |
| CN106695156A (en) * | 2016-12-27 | 2017-05-24 | 上海焊接器材有限公司 | Super duplex stainless steel flux-cored wire |
| CN107052617B (en) * | 2017-03-20 | 2019-08-16 | 武汉铁锚焊接材料股份有限公司 | A kind of 1000MPa grade high-strength all positon ultralow-hydrogen low flux-cored wire and its welding method |
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2018
- 2018-01-24 CN CN201810066828.5A patent/CN108000001B/en active Active
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| CN108000001A (en) | 2018-05-08 |
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