CN115476019B - Build-up welding process for continuous casting roller - Google Patents
Build-up welding process for continuous casting roller Download PDFInfo
- Publication number
- CN115476019B CN115476019B CN202211127976.6A CN202211127976A CN115476019B CN 115476019 B CN115476019 B CN 115476019B CN 202211127976 A CN202211127976 A CN 202211127976A CN 115476019 B CN115476019 B CN 115476019B
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- stainless steel
- continuous casting
- welding
- arc
- roller
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- 238000003466 welding Methods 0.000 title claims abstract description 58
- 238000009749 continuous casting Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000010965 430 stainless steel Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002344 surface layer Substances 0.000 claims abstract description 21
- 239000010953 base metal Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 15
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910000967 As alloy Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 description 12
- 229910052804 chromium Inorganic materials 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B23K9/04—Welding for other purposes than joining, e.g. built-up 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
- B23K9/235—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a build-up welding process of a continuous casting roller, which comprises the following steps of: s1, cleaning, namely cleaning the surface of a processed continuous casting roller parent metal; s2, manufacturing a wrapping layer, selecting 430 stainless steel, rolling the wrapping layer, and sleeving the 430 stainless steel coil on the surface of the continuous casting roll base metal; s3, spot welding and fixing, namely, arc welding and fixing the 430 stainless steel coil on the surface of the base metal of the continuous casting roller; s4, arc welding and overlaying are directly carried out on a continuous casting roller base material fixed with a 430 stainless steel plate arc, a hard surface layer is formed, the 430 stainless steel plate is melted by arc welding, and after the 430 stainless steel plate and a hard surface layer overlaying welding wire are melted and mixed, a martensitic stainless steel hard surface layer with components conforming to the design can be obtained and deposited on the roller surface of the base material. Through the mode, the invention can improve the component stability after hard surface layer surfacing and ensure that the Cr content of the hard surface layer meets the standard design index.
Description
Technical Field
The invention relates to the technical field of metal material welding, in particular to a build-up welding process of a continuous casting roller.
Background
The continuous casting roller is one of the main components of continuous casting machines in steelworks, and is manufactured by using a low alloy steel base metal roller and hard surface overlaying, wherein most of the continuous casting roller is welded by flux-cored wire arc welding, the designed hard surface layer flux-cored wire alloy composition is martensitic stainless steel containing about 13 to 16 percent of Cr, and according to different working conditions of each section of the continuous casting machine, alloying elements such as Ni, mo and the like are added to provide performance meeting the working conditions of each section of the continuous casting machine.
Because the flux-cored wire arc welding has the problems that the base metal is remelted by arc heat, and the hard surface overlaying layer alloy is diluted and lower than the design content of the hard surface flux-cored wire alloy, a 430 stainless steel flux-cored wire overlaying layer with the Cr content of about 17% is usually used before the continuous casting roller hard surface welding wire overlaying, so that the diluted Cr element after the hard surface flux-cored wire overlaying is complemented, the Cr content of the hard surface layer after the overlaying is ensured to reach 12-14% so as to meet the working performance requirement of the roller surface, and the specification requirement of industry standard YB/T4326-2013 is met.
However, the underlying layer surfacing can increase the material and time cost, and still has the problems that the ingredients of the surfacing layer are easy to change along with the surfacing parameters, are not easy to control or are uneven, and can influence the ingredients after hard surfacing to deviate from the design target.
Disclosure of Invention
The invention mainly solves the technical problems of unstable components of a base metal overlaying layer and high overlaying cost by providing a continuous casting roller overlaying process.
In order to solve the technical problems, the invention adopts a technical scheme that: the continuous casting roller overlaying process comprises the following steps:
s1, cleaning, namely cleaning the surface of a processed continuous casting roller parent metal;
s2, manufacturing a wrapping layer, selecting 430 stainless steel, rolling the wrapping layer, and sleeving the 430 stainless steel coil on the surface of the continuous casting roll base metal;
s3, spot welding and fixing, namely, arc welding and fixing the 430 stainless steel coil on the surface of the base metal of the continuous casting roller;
s4, arc welding and overlaying are directly carried out on a continuous casting roller base material fixed with a 430 stainless steel plate arc, a hard surface layer is formed, the 430 stainless steel plate is melted by arc welding, and after the 430 stainless steel plate and a hard surface layer overlaying welding wire are melted and mixed, a martensitic stainless steel hard surface layer with components conforming to the design can be obtained and deposited on the roller surface of the base material.
Preferably, the arc diameter of the stainless steel coil 430 in the step S2 is 0.5-0.9 times of the roll diameter of the continuous casting roll base material.
Preferably, in step S2, the rolled 430 stainless steel plate is slightly stretched and then is sleeved on the surface of the base material roll.
Preferably, in the step S3, the distance between the spot welding fixing points is 20-50 mm, the fixing welding points are fully distributed on the roller surface of the base material, and the arc rolling of the 430 stainless steel plate and the roller surface of the base material are ensured not to be separated from warping in the subsequent surfacing process.
Preferably, the spot welding fixing manner in the step S3 is argon arc welding, plasma transfer arc welding, laser welding or resistance welding.
Preferably, the alloy composition of the flux-cored wire used for arc welding overlay welding in step S4 is martensitic stainless steel containing about 13-16% Cr.
Compared with the prior art, the invention has the beneficial effects that:
the 430 stainless steel plate is a conventional standard, and the price is cheaper than that of a 430 surfacing welding wire, so that the material cost can be effectively reduced;
the 430 stainless steel has low strength, good ductility and easy arc rolling processing, and the time required for fixing the 430 stainless steel plate on the roller surface of the base material is lower than that of a surfacing 430 stainless steel priming layer;
the 430 stainless steel plate has uniform thickness and components, is directly fixed on the surface of a base metal roller to replace a bottoming 430 surfacing layer, can improve the stability of components after surfacing of a hard surface layer, and ensures that the Cr content of the hard surface layer meets the standard design index.
Detailed Description
The following detailed description of the preferred embodiments of the invention is provided to enable those skilled in the art to more readily understand the advantages and features of the invention and to make a clear and concise definition of the scope of the invention.
The embodiment of the invention comprises the following steps:
a continuous casting roller overlaying process comprises the following steps:
s1, cleaning, namely cleaning the surface of a processed continuous casting roller parent metal;
s2, manufacturing a wrapping layer, namely selecting 430 stainless steel, carrying out arc rolling on the wrapping layer, wherein the 430 stainless steel is low in hardness and good in ductility, is easy to roll and form, the arc diameter of the 430 stainless steel coil is 0.5-0.9 times of the roller diameter of a base metal roller of a continuous casting roller, and is rolled to be smaller than the roller diameter of the base metal roller, so that the base metal roller is sleeved, and can be pressed close to the roller surface as much as possible, the later spot welding and fixation are facilitated, the separation from the roller surface in the follow-up surfacing process is avoided, the 430 stainless steel plate after being rolled is slightly spread and sleeved on the roller surface of the base metal roller, and the 430 stainless steel is thick, elastic and easy to spread;
s3, spot welding is fixed, namely, the arc welding of the 430 stainless steel coil is fixed on the surface of a base material of a continuous casting roller, the distance between the spot welding fixed points is about 20-50 mm, the fixed welding points are required to be fully distributed on the surface of the base material, the arc rolling of the 430 stainless steel plate and the surface of the base material are ensured not to be separated from warping in the subsequent surfacing process, and argon arc welding, plasma transfer arc welding, laser welding or resistance welding are adopted as the spot welding fixing mode;
s4, arc welding and overlaying are directly carried out on a continuous casting roller base material fixed with a 430 stainless steel plate for arc winding to form a hard surface layer, the alloy component of a flux-cored wire for arc welding and overlaying is martensitic stainless steel containing about 13-16% of Cr, the 430 stainless steel plate is melted by the arc of arc welding, and the 430 stainless steel plate and the hard surface layer overlaying wire are melted and mixed to obtain the martensitic stainless steel hard surface layer with the components conforming to the design and are deposited on the roller surface of the base material.
When the continuous casting roller surfacing process works, the hard surface layer surfacing welding wire is martensitic stainless steel, the chromium content of the 430 stainless steel plate is high enough, and the chromium content of the 430 stainless steel plate is 17%, so that after remelting with a small part of parent materials of the hard surface welding wire, the chromium content of the 430 stainless steel plate is still higher than 12%, and the stainless steel plate is still martensitic in microstructure, but if the welding wire is directly welded on the parent materials, the chromium content of the 430 stainless steel plate is lower than 10% due to dilution, and the welding wire is not the stainless steel.
According to the continuous casting roller overlaying process, the component stability of the hard surface layer after overlaying is improved, and the Cr content of the hard surface layer is ensured to meet the standard design index.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (6)
1. A continuous casting roller overlaying process is characterized in that: the continuous casting roller overlaying process comprises the following steps:
s1, cleaning, namely cleaning the surface of a processed continuous casting roller parent metal;
s2, manufacturing a wrapping layer, selecting 430 stainless steel, rolling the wrapping layer, and sleeving the 430 stainless steel coil on the surface of the continuous casting roll base metal;
s3, spot welding and fixing, namely, arc welding and fixing the 430 stainless steel coil on the surface of the base metal of the continuous casting roller;
s4, arc welding and overlaying are directly carried out on a continuous casting roller base material fixed with a 430 stainless steel plate arc, a hard surface layer is formed, the 430 stainless steel plate is melted by arc welding, and after the 430 stainless steel plate and a hard surface layer overlaying welding wire are melted and mixed, a martensitic stainless steel hard surface layer with components conforming to the design can be obtained and deposited on the roller surface of the base material.
2. The continuous casting roll overlaying process according to claim 1, wherein: the arc diameter of the stainless steel coil 430 in the step S2 is 0.5-0.9 times of the roll diameter of the base material of the continuous casting roll.
3. The continuous casting roll overlaying process according to claim 2, wherein: in the step S2, the 430 stainless steel plate with the rolled arc is slightly spread and sleeved on the surface of the base material roller.
4. The continuous casting roll overlaying process according to claim 1, wherein: and S3, the interval between spot welding fixed points is 20-50 mm, and the fixed welding spots are fully distributed on the surface of the base metal roll, so that the arc rolling of the 430 stainless steel plate and the surface of the base metal roll are ensured not to be separated from warping in the subsequent surfacing process.
5. The continuous casting roll overlaying process according to claim 1, wherein: and in the step S3, argon arc welding, plasma transfer arc welding, laser welding or resistance welding are adopted as the spot welding fixing mode.
6. The continuous casting roll overlaying process according to claim 1, wherein: in the step S4, the arc welding overlaying adopts martensitic stainless steel with about 13-16% of Cr as alloy component of the flux-cored wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127976.6A CN115476019B (en) | 2022-09-16 | 2022-09-16 | Build-up welding process for continuous casting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127976.6A CN115476019B (en) | 2022-09-16 | 2022-09-16 | Build-up welding process for continuous casting roller |
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| Publication Number | Publication Date |
|---|---|
| CN115476019A CN115476019A (en) | 2022-12-16 |
| CN115476019B true CN115476019B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211127976.6A Active CN115476019B (en) | 2022-09-16 | 2022-09-16 | Build-up welding process for continuous casting roller |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01178375A (en) * | 1988-01-11 | 1989-07-14 | Mitsubishi Heavy Ind Ltd | One-side welding method for stainless clad steel plate |
| US5704765A (en) * | 1995-08-07 | 1998-01-06 | Westinghouse Electric Corporation | High chromium content welding material to improve resistance of corrosion method and device |
| CN201316790Y (en) * | 2008-08-15 | 2009-09-30 | 安阳市科威冶金设备制造有限责任公司 | Roller for continuous caster |
| CN201442086U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Ingot-blank conveying roller |
| CN101733510A (en) * | 2008-11-24 | 2010-06-16 | 机械科学研究院哈尔滨焊接研究所 | Novel continuous casting roller surfacing technology |
| CN104002018A (en) * | 2014-06-23 | 2014-08-27 | 上海一钢机电有限公司 | Method for repairing open arc welding and surfacing of continuous casting roller of continuous casting fan-shaped section |
| CN105499751A (en) * | 2015-12-28 | 2016-04-20 | 湖北万安通复合再制造科技有限公司 | Hardfacing repair process used for hot continuous rolling pinch roll |
| CN108015447A (en) * | 2017-11-02 | 2018-05-11 | 中冶建筑研究总院有限公司 | Continuous Casting Rolls submerged arc overlay welding precipitation hardening type stainless flux-cored wire and preparation method thereof |
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| CN110449692A (en) * | 2019-07-29 | 2019-11-15 | 南京工程学院 | A kind of Phase Proportion control method of carbon steel surface overlaying two-phase anti-corrosion layer |
| CN110539101A (en) * | 2019-09-29 | 2019-12-06 | 鞍钢集团北京研究院有限公司 | Open arc self-protection flux-cored wire for continuous casting roller surfacing of fan-shaped section of continuous casting machine and manufacturing method thereof |
| CN112191990A (en) * | 2020-10-09 | 2021-01-08 | 常州宝菱重工机械有限公司 | Build-up welding method for continuous casting roller |
| CN112916986A (en) * | 2021-02-02 | 2021-06-08 | 常州本森焊业科技有限公司 | Build-up welding method for continuous casting roller |
| CN113305505A (en) * | 2021-05-11 | 2021-08-27 | 宝武装备智能科技有限公司 | Method for manufacturing cold-rolled hard-surface process roller |
| CN114799412A (en) * | 2022-06-02 | 2022-07-29 | 常州宝菱重工机械有限公司 | Surfacing method of continuous casting roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015111090B3 (en) * | 2015-07-09 | 2016-09-08 | Benteler Steel/Tube Gmbh | Process for the preparation of a seamless, multi-layered tube product and round or polygonal block for use in this process |
-
2022
- 2022-09-16 CN CN202211127976.6A patent/CN115476019B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01178375A (en) * | 1988-01-11 | 1989-07-14 | Mitsubishi Heavy Ind Ltd | One-side welding method for stainless clad steel plate |
| US5704765A (en) * | 1995-08-07 | 1998-01-06 | Westinghouse Electric Corporation | High chromium content welding material to improve resistance of corrosion method and device |
| CN201316790Y (en) * | 2008-08-15 | 2009-09-30 | 安阳市科威冶金设备制造有限责任公司 | Roller for continuous caster |
| CN101733510A (en) * | 2008-11-24 | 2010-06-16 | 机械科学研究院哈尔滨焊接研究所 | Novel continuous casting roller surfacing technology |
| CN201442086U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Ingot-blank conveying roller |
| CN104002018A (en) * | 2014-06-23 | 2014-08-27 | 上海一钢机电有限公司 | Method for repairing open arc welding and surfacing of continuous casting roller of continuous casting fan-shaped section |
| CN105499751A (en) * | 2015-12-28 | 2016-04-20 | 湖北万安通复合再制造科技有限公司 | Hardfacing repair process used for hot continuous rolling pinch roll |
| CN108015447A (en) * | 2017-11-02 | 2018-05-11 | 中冶建筑研究总院有限公司 | Continuous Casting Rolls submerged arc overlay welding precipitation hardening type stainless flux-cored wire and preparation method thereof |
| CN109514038A (en) * | 2018-12-04 | 2019-03-26 | 中冶建筑研究总院有限公司 | The new process of efficient compound (again) the manufacture Continuous Casting Rolls of built-up welding |
| CN110449692A (en) * | 2019-07-29 | 2019-11-15 | 南京工程学院 | A kind of Phase Proportion control method of carbon steel surface overlaying two-phase anti-corrosion layer |
| CN110539101A (en) * | 2019-09-29 | 2019-12-06 | 鞍钢集团北京研究院有限公司 | Open arc self-protection flux-cored wire for continuous casting roller surfacing of fan-shaped section of continuous casting machine and manufacturing method thereof |
| CN112191990A (en) * | 2020-10-09 | 2021-01-08 | 常州宝菱重工机械有限公司 | Build-up welding method for continuous casting roller |
| CN112916986A (en) * | 2021-02-02 | 2021-06-08 | 常州本森焊业科技有限公司 | Build-up welding method for continuous casting roller |
| CN113305505A (en) * | 2021-05-11 | 2021-08-27 | 宝武装备智能科技有限公司 | Method for manufacturing cold-rolled hard-surface process roller |
| CN114799412A (en) * | 2022-06-02 | 2022-07-29 | 常州宝菱重工机械有限公司 | Surfacing method of continuous casting roller |
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| Publication number | Publication date |
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| CN115476019A (en) | 2022-12-16 |
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