CN104999168A - Submerged-arc welding process for 16MnDR steel plate with a thickness of 30 mm - Google Patents
Submerged-arc welding process for 16MnDR steel plate with a thickness of 30 mm Download PDFInfo
- Publication number
- CN104999168A CN104999168A CN201510399231.9A CN201510399231A CN104999168A CN 104999168 A CN104999168 A CN 104999168A CN 201510399231 A CN201510399231 A CN 201510399231A CN 104999168 A CN104999168 A CN 104999168A
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- China
- Prior art keywords
- welding
- weld
- arc welding
- submerged
- steel plate
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a submerged-arc welding process for a 16MnDR steel plate with a thickness of 30 mm and relates to the technical field of steel welding. The submerged-arc welding process mainly consists of two steps, i.e., preparation before welding and welding. The submerged-arc welding process for the 16MnDR steel plate with a thickness of 30 mm, disclosed by the invention, has the advantages of preventing welding defects such as air pores, impurities and cracks and realizing good product quality by means of X-ray flaw detection.
Description
Technical field
The present invention relates to sheet material welding technology field, is more particularly the welding technique of submerged arc welding of the thick 16MnDR steel plate of a kind of 30mm.
Background technology
The weldability of steel is the same with its other performances, depends primarily on its chemical analysis.If in steel si content more than 06% after unfavorable to impact toughness, brittle transition temperature is improved.C content is measured after more than 1.6% more than 0.3% with containing Mn, often occurs crackle during welding, also there will be the bainite structure of fragility on hot rolled steel plate simultaneously.Cold crack phenomenon is easily there is in 16MnDR steel when welding.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art, a kind of 30mm welding technique of submerged arc welding of thick 16MnDR steel plate is provided.
The object of the invention is to be achieved through the following technical solutions:
A welding technique of submerged arc welding for the thick 16MnDR steel plate of 30mm, is characterized in that: comprise the following steps:
(1) welds prepares
The first, the selection of welding material, selects H10Mn2DR welding wire, SJ101DR solder flux, and welding rod specification is φ 2.0mm; ,
The second, welding steel is opened X-type groove, slope angle is 90 °, and root face is 6mm;
3rd, the greasy dirt of bevel for welding and both sides and iron rust are cleaned out, exposes metallic luster;
4th, carry out preheating to welding steel, preheat temperature is 100 DEG C, and preheating time is 1 hour;
(2) weld
The first, prime coat welds, after front bottoming has been welded, reverse side carries out back chipping polishing, and carry out back side prime coat welding again after exposing metallic luster, concrete welding procedure is: adopt submerged-arc welding to weld with the speed of 45cm/min, welding current is 630-650A, and weldingvoltage is 34-36V;
The second, packed layer welds, and front packed layer is divided into 2 layers of welding bead to weld, back side packed layer is divided into 3 layers of welding bead to weld, concrete technology is: use manual electric arc welding to weld with the speed of 35cm/min, welding current is 640-660A, and weldingvoltage is 36-38V;
3rd, capping layer welds, and use manual electric arc welding to weld with the speed of 30cm/min, welding current is 640-660A, and weldingvoltage is 38-41V.
The welding technique of submerged arc welding of the thick 16MnDR steel plate of described a kind of 30mm, is characterized in that: the interlayer temperature in welding process is 100-200 DEG C.
The invention has the advantages that:
The weld defects such as the welding technique of submerged arc welding of the thick 16MnDR steel plate of 30mm of the present invention avoids pore, is mingled with, crackle, through x-ray inspection, product quality is good.
Detailed description of the invention
A welding technique of submerged arc welding for the thick 16MnDR steel plate of 30mm, comprises the following steps:
(1) welds prepares
The first, the selection of welding material, selects H10Mn2DR welding wire, SJ101DR solder flux, and welding rod specification is φ 2.0mm; ,
The second, welding steel is opened X-type groove, slope angle is 90 °, and root face is 6mm;
3rd, the greasy dirt of bevel for welding and both sides and iron rust are cleaned out, exposes metallic luster;
4th, carry out preheating to welding steel, preheat temperature is 100 DEG C, and preheating time is 1 hour;
(2) weld
The first, prime coat welds, after front bottoming has been welded, reverse side carries out back chipping polishing, and carry out back side prime coat welding again after exposing metallic luster, concrete welding procedure is: adopt submerged-arc welding to weld with the speed of 45cm/min, welding current is 650A, and weldingvoltage is 36V;
The second, packed layer welds, and front packed layer is divided into 2 layers of welding bead to weld, and back side packed layer is divided into 3 layers of welding bead to weld, and concrete technology is: use manual electric arc welding to weld with the speed of 35cm/min, welding current is 640A, and weldingvoltage is 36V;
3rd, capping layer welds, and use manual electric arc welding to weld with the speed of 30cm/min, welding current is 650A, and weldingvoltage is 40V.
Interlayer temperature in welding process is 100 DEG C.
Claims (2)
1. a welding technique of submerged arc welding for the thick 16MnDR steel plate of 30mm, is characterized in that: comprise the following steps:
(1) welds prepares
The first, the selection of welding material, selects H10Mn2DR welding wire, SJ101DR solder flux, and welding rod specification is φ 2.0mm; ,
The second, welding steel is opened X-type groove, slope angle is 90 °, and root face is 6mm;
3rd, the greasy dirt of bevel for welding and both sides and iron rust are cleaned out, exposes metallic luster;
4th, carry out preheating to welding steel, preheat temperature is 100 DEG C, and preheating time is 1 hour;
(2) weld
The first, prime coat welds, after front bottoming has been welded, reverse side carries out back chipping polishing, and carry out back side prime coat welding again after exposing metallic luster, concrete welding procedure is: adopt submerged-arc welding to weld with the speed of 45cm/min, welding current is 630-650A, and weldingvoltage is 34-36V;
The second, packed layer welds, and front packed layer is divided into 2 layers of welding bead to weld, back side packed layer is divided into 3 layers of welding bead to weld, concrete technology is: use manual electric arc welding to weld with the speed of 35cm/min, welding current is 640-660A, and weldingvoltage is 36-38V;
3rd, capping layer welds, and use manual electric arc welding to weld with the speed of 30cm/min, welding current is 640-660A, and weldingvoltage is 38-41V.
2. the welding technique of submerged arc welding of the thick 16MnDR steel plate of a kind of 30mm according to claim 1, is characterized in that: the interlayer temperature in welding process is 100-200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399231.9A CN104999168A (en) | 2015-07-09 | 2015-07-09 | Submerged-arc welding process for 16MnDR steel plate with a thickness of 30 mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399231.9A CN104999168A (en) | 2015-07-09 | 2015-07-09 | Submerged-arc welding process for 16MnDR steel plate with a thickness of 30 mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999168A true CN104999168A (en) | 2015-10-28 |
Family
ID=54372168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510399231.9A Pending CN104999168A (en) | 2015-07-09 | 2015-07-09 | Submerged-arc welding process for 16MnDR steel plate with a thickness of 30 mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108431A (en) * | 2018-08-15 | 2019-01-01 | 招商局重工（江苏）有限公司 | A kind of welding method of super thick steel-casting |
| CN109530885A (en) * | 2018-12-19 | 2019-03-29 | 泰安市金水龙金属容器有限公司 | A kind of 8-16mm thickness 16MnDR steel plate welding procedure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774068A (en) * | 2009-12-25 | 2010-07-14 | 鲁西工业装备有限公司 | Submerged-arc welding process of stainless steel composite steel plate |
| CN102000901A (en) * | 2010-12-09 | 2011-04-06 | 湖南华菱湘潭钢铁有限公司 | Welding technology of submerged-arc welding of X-shaped groove of medium plate |
| CN102632320A (en) * | 2012-04-09 | 2012-08-15 | 南京钢铁股份有限公司 | Method for welding high-grade wear-resistant steel under protection of carbon dioxide |
| CN104139228A (en) * | 2013-05-08 | 2014-11-12 | 中国核工业二四建设有限公司 | Thick steel plate welding process |
-
2015
- 2015-07-09 CN CN201510399231.9A patent/CN104999168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774068A (en) * | 2009-12-25 | 2010-07-14 | 鲁西工业装备有限公司 | Submerged-arc welding process of stainless steel composite steel plate |
| CN102000901A (en) * | 2010-12-09 | 2011-04-06 | 湖南华菱湘潭钢铁有限公司 | Welding technology of submerged-arc welding of X-shaped groove of medium plate |
| CN102632320A (en) * | 2012-04-09 | 2012-08-15 | 南京钢铁股份有限公司 | Method for welding high-grade wear-resistant steel under protection of carbon dioxide |
| CN104139228A (en) * | 2013-05-08 | 2014-11-12 | 中国核工业二四建设有限公司 | Thick steel plate welding process |
Non-Patent Citations (1)
| Title |
|---|
| 李静等: "低温钢16MnDR焊接工艺研究", 《热加工工艺》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108431A (en) * | 2018-08-15 | 2019-01-01 | 招商局重工（江苏）有限公司 | A kind of welding method of super thick steel-casting |
| CN109530885A (en) * | 2018-12-19 | 2019-03-29 | 泰安市金水龙金属容器有限公司 | A kind of 8-16mm thickness 16MnDR steel plate welding procedure |
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| PB01 | Publication | ||
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Application publication date: 20151028 |