CN102632330A - Submerged arc welding method of ultralow carbon stainless steel thick plate - Google Patents
Submerged arc welding method of ultralow carbon stainless steel thick plate Download PDFInfo
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- CN102632330A CN102632330A CN2012101455876A CN201210145587A CN102632330A CN 102632330 A CN102632330 A CN 102632330A CN 2012101455876 A CN2012101455876 A CN 2012101455876A CN 201210145587 A CN201210145587 A CN 201210145587A CN 102632330 A CN102632330 A CN 102632330A
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- stainless steel
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- welding method
- interlayer temperature
- submerged
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- 238000003466 welding Methods 0.000 title claims abstract description 74
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 63
- 239000010935 stainless steel Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 8
- 230000002950 deficient Effects 0.000 description 6
- 238000005476 soldering Methods 0.000 description 6
- 238000010257 thawing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention discloses a submerged arc welding method of an ultralow carbon stainless steel thick plate. Large linear energy and higher interlayer temperature are adopted; the linear energy is 20-380A; and the interlayer temperature is 1200-1500 DEG C. According to the submerged arc welding method of the ultralow carbon stainless steel thick plate, by adopting the large linear energy and the higher interlayer temperature, thorough melting can be maintained in a melting bath; and the occurrence of the critical defect-micro crack defect in the process of welding of the stainless steel thick plate is avoided, thus obtaining a high-performance-index weld. The technological principle that preheating is not allowed and low linear energy is required to be adopted, which is followed in the process of welding stainless steel, is broken fundamentally; and the indexes of the obtained weld, such as chemical components, mechanical performance, weld inherent defects, resistance to intergranular corrosion and the like, meet technical requirements.
Description
Technical field
The invention belongs to the welding technique field, concrete is a kind of submerged-arc welding method of super-low carbon stainless steel slab.
Background technology
In the existing solder technology; The pressure vessel that Welding Metallurgy is used, evaporator shell, Hi-Stren steel material and thickness are comparative maturities less than the stainless welding procedure of 20mm comparatively speaking; The input heat is big, distortion is big, the heat affected area is wide and shortcomings such as normal temperature impact flexibility under identical heat-treat condition is lower but exist in the existing welding procedure; This is concerning the equipment that requires high tenacity and low embrittlement, and prior art can't meet the demands.In the stainless solder technology, the problem that solves crackle is more complicated and difficulty, and is especially for the super-low carbon stainless steel slab, higher to welding process requirement.
Given this; The present invention is intended to explore a kind of submerged-arc welding method of super-low carbon stainless steel slab; This submerged-arc welding method can obtain the weld seam of high performance index, and indexs such as the chemical composition of weld seam, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
Summary of the invention
The technical problem that the present invention will solve is the submerged-arc welding method that proposes a kind of super-low carbon stainless steel slab; This submerged-arc welding method can obtain the weld seam of high performance index; Indexs such as the chemical composition of weld seam, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
Realize above-mentioned technical purpose, the submerged-arc welding method of super-low carbon stainless steel slab of the present invention adopts large-line energy and higher interlayer temperature, and said heat input is 20-380A, and interlayer temperature is 1200-1500 ℃.
Further, thickness of slab adopts welding by both sides during more than or equal to 15mm; Thickness of slab adopts single welding during less than 15mm;
Further, when thickness of slab is 20mm, adopt welding by both sides, heat input is 260-280A, and interlayer temperature is 1200-1450 ℃;
Further, when thickness of slab is 15mm, adopt welding by both sides, heat input is 220-250A, and interlayer temperature is 1200-1400 ℃;
Further, when thickness of slab is 10mm, adopt single welding, heat input is 150-180A, and interlayer temperature is 1200-1300 ℃;
Further, when thickness of slab is 5mm, adopt single welding, heat input is 100-120A, and interlayer temperature is 1200-1300 ℃;
Further, when thickness of slab is 2mm, adopt single welding, heat input is 80-100A, and interlayer temperature is 1200-1300 ℃;
Further, thickness of slab adopts welding by both sides during greater than 20mm, and heat input is 280-380A, and interlayer temperature is 1200-1500 ℃;
Further, thickness of slab adopts single welding during less than 2mm, and heat input is 20-80A, and interlayer temperature is 1200-1300 ℃;
Further, the material of stainless steel thick plate is 00Cr18Ni10.
Beneficial effect of the present invention is:
The submerged-arc welding method of super-low carbon stainless steel slab of the present invention is through adopting large-line energy and higher interlayer temperature; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
The specific embodiment
Elaborate below in conjunction with the embodiment specific embodiments of the invention.
The submerged-arc welding method of super-low carbon stainless steel slab of the present invention adopts large-line energy and higher interlayer temperature, and said heat input is 20-380A, and interlayer temperature is 1200-1500 ℃.When thickness of slab during, adopt welding by both sides more than or equal to 15mm; When thickness of slab during, adopt single welding less than 15mm.
First embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment; The material of stainless steel thick plate is 00Cr18Ni10, and the thickness of stainless steel thick plate adopts welding by both sides for being 20mm; Heat input can be selected 260-280A for use; Interlayer temperature can be selected 1200-1450 ℃ for use, and the heat input of present embodiment is selected 270A for use, and interlayer temperature is 1400 ℃.
The submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment is through adopting the interlayer temperature of 260-280A large-line energy and 1200-1450 ℃; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
Second embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment; The material of stainless steel thick plate is 00Cr17Ni14Mo2, and the thickness of stainless steel thick plate adopts welding by both sides for being 15mm; Heat input can be selected 220-250A for use; Interlayer temperature can be selected 1200-1400 ℃ for use, and the heat input of present embodiment is selected 250A for use, and interlayer temperature is 1400 ℃.
The submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment is through adopting the interlayer temperature of 220-250A large-line energy and 1200-1400 ℃; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
The 3rd embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment; The material of stainless steel thick plate is 00Cr18Ni10, and the thickness of stainless steel thick plate adopts single welding for being 10mm; Heat input can be selected 150-180A for use; Interlayer temperature can be selected 1200-1300 ℃ for use, and the heat input of present embodiment selects 180 for use, and interlayer temperature is 1300 ℃.
The submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment is through adopting the interlayer temperature of 150-180A large-line energy and 1200-1300 ℃; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
The 4th embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment; The material of stainless steel thick plate is 00Cr22Ni5Mo3N, and the thickness of stainless steel thick plate adopts single welding for being 5mm; Heat input can be selected 100-120A for use; Interlayer temperature can be selected 1200-1300 ℃ for use, and the heat input of present embodiment selects 120 for use, and interlayer temperature is 1250 ℃.
The submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment is through adopting the interlayer temperature of 100-120A large-line energy and 1200-1300 ℃; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
The 5th embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment; The material of stainless steel thick plate is 00Cr18Ni10, and the thickness of stainless steel thick plate is 2mm, adopts single welding; Heat input can be selected 80-100A for use; Interlayer temperature can be selected 1200-1300 ℃ for use, and the heat input of present embodiment selects 80 for use, and interlayer temperature is 1200 ℃.
The submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment is through adopting the interlayer temperature of 80-100A large-line energy and 1200-1300 ℃; Can keep the abundant thawing in the molten bath; Effectively avoid critical defect---the appearance of micro-flaw defective of stainless steel thick plate welding; Thereby obtained the weld seam of high performance index; Continue to use when fundamentally having broken soldering stainless steel observe mustn't preheating and the technological principle that requires to adopt the bottom line energy, and indexs such as the weld seam chemical composition that obtains, mechanical performance, weld seam internal flaw, anti intercrystalline corrosion performance all meet specification requirement.
The 6th embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment, the material of stainless steel thick plate is 00Cr18Ni10, and the thickness of stainless steel thick plate is greater than 20mm, adopts welding by both sides, and heat input can be selected 280-380A for use, and interlayer temperature can be selected 1200-1500 ℃ for use.
The 7th embodiment
In the submerged-arc welding method of the super-low carbon stainless steel slab of present embodiment, the material of stainless steel thick plate is 00Cr18Ni10, and the thickness of stainless steel thick plate adopts single welding less than 2mm, and heat input can be selected 20-80A for use, and interlayer temperature can be selected 1200-1300 ℃ for use.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the submerged-arc welding method of a super-low carbon stainless steel slab is characterized in that: adopt large-line energy and higher interlayer temperature, said heat input is 20-380A, and interlayer temperature is 1200-1500 ℃.
2. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: thickness of slab adopts welding by both sides during more than or equal to 15mm; Thickness of slab adopts single welding during less than 15mm.
3. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: when thickness of slab is 20mm, adopt welding by both sides, heat input is 260-280A, and interlayer temperature is 1200-1450 ℃.
4. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: when thickness of slab is 15mm, adopt welding by both sides, heat input is 220-250A, and interlayer temperature is 1200-1400 ℃.
5. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: when thickness of slab is 10mm, adopt single welding, heat input is 150-180A, and interlayer temperature is 1200-1300 ℃.
6. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: when thickness of slab is 5mm, adopt single welding, heat input is 100-120A, and interlayer temperature is 1200-1300 ℃.
7. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: when thickness of slab is 2mm, adopt single welding, heat input is 80-100A, and interlayer temperature is 1200-1300 ℃.
8. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: thickness of slab adopts welding by both sides during greater than 20mm, and heat input is 280-380A, and interlayer temperature is 1200-1500 ℃.
9. the submerged-arc welding method of super-low carbon stainless steel slab according to claim 1 is characterized in that: thickness of slab adopts single welding during less than 2mm, and heat input is 20-80A, and interlayer temperature is 1200-1300 ℃.
10. according to the submerged-arc welding method of each described super-low carbon stainless steel slab of claim 1-9, it is characterized in that: the material of stainless steel thick plate is 00Cr18Ni10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210145587.6A CN102632330B (en) | 2012-05-11 | 2012-05-11 | Submerged arc welding method of ultralow carbon stainless steel thick plate |
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| CN201210145587.6A CN102632330B (en) | 2012-05-11 | 2012-05-11 | Submerged arc welding method of ultralow carbon stainless steel thick plate |
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| CN102632330A true CN102632330A (en) | 2012-08-15 |
| CN102632330B CN102632330B (en) | 2015-07-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171205A (en) * | 2015-10-21 | 2015-12-23 | 安徽马钢工程技术集团有限公司 | Extra-low-carbon stain less steel mixed gas shielded welding process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462196A (en) * | 2008-12-31 | 2009-06-24 | 重庆大学 | Method and equipment for electromagnetic composite double-face submerged arc welding of diphase stainless steel thick plate |
| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN102179609A (en) * | 2011-05-17 | 2011-09-14 | 烟台台海玛努尔核电设备股份有限公司 | Submerged automatic arc welding process for nuclear power main pipeline |
-
2012
- 2012-05-11 CN CN201210145587.6A patent/CN102632330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462196A (en) * | 2008-12-31 | 2009-06-24 | 重庆大学 | Method and equipment for electromagnetic composite double-face submerged arc welding of diphase stainless steel thick plate |
| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN102179609A (en) * | 2011-05-17 | 2011-09-14 | 烟台台海玛努尔核电设备股份有限公司 | Submerged automatic arc welding process for nuclear power main pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171205A (en) * | 2015-10-21 | 2015-12-23 | 安徽马钢工程技术集团有限公司 | Extra-low-carbon stain less steel mixed gas shielded welding process |
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| CN102632330B (en) | 2015-07-22 |
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Denomination of invention: Submerged arc welding method of ultralow carbon stainless steel thick plate Effective date of registration: 20160122 Granted publication date: 20150722 Pledgee: China Minsheng Banking Corp Chongqing branch Pledgor: Chongqing Kunyu Lithium Co., Ltd. Registration number: 2016500000001 |
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Denomination of invention: Submerged arc welding method of ultralow carbon stainless steel thick plate Effective date of registration: 20170331 Granted publication date: 20150722 Pledgee: Chongqing Tianqi Lithium Industry Co., Ltd. Pledgor: Chongqing Kunyu Lithium Co., Ltd. Registration number: 2017980000096 |
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Date of cancellation: 20170911 Granted publication date: 20150722 Pledgee: Chongqing Tianqi Lithium Industry Co., Ltd. Pledgor: Chongqing Kunyu Lithium Co., Ltd. Registration number: 2017980000096 |
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Effective date of registration: 20180202 Address after: 22 No. 404100 Chongqing Industrial Park in Tongliang, long an Avenue (East Street Office) Patentee after: Chongqing Tianqi Lithium Industry Co., Ltd. Address before: 402466 Chongqing city Rongchang County Street Anfu Patentee before: Chongqing Kunyu Lithium Co., Ltd. |
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