CN1413793A - Repairing cold-rolled intermediat roll working lining build-up welding agent core welding stick - Google Patents
Repairing cold-rolled intermediat roll working lining build-up welding agent core welding stick Download PDFInfo
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- CN1413793A CN1413793A CN 02131093 CN02131093A CN1413793A CN 1413793 A CN1413793 A CN 1413793A CN 02131093 CN02131093 CN 02131093 CN 02131093 A CN02131093 A CN 02131093A CN 1413793 A CN1413793 A CN 1413793A
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- welding
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- steel band
- medicine core
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Abstract
A flax-cored welding wire for repairing the working layer of the intermediate cold-rolling roller by build-up welding is prepared from the cold-rolled steel band with 0.3-0.8 mm for thickness and 8-16 mm for width through preparing flux from metal powder and Fe alloy, cutting steel band, removing oil, baking, rolling to become "U" shape, filling flux, rolling to become "O" shape, and drawing. Its advantages are high welded hardness up to 55-59 HRc, high impact work (more than 40J), and high anticracking and antidropping performance.
Description
Technical field
The invention belongs to welding material, more precisely belong to the flux-cored wire material that the repair cold-rolling intermediate calender rolls uses.
The cold rolling intermediate calender rolls of background technology is the critical component in the cold-rolled steel sheet device, bear huge high speed alternation pressure during work, therefore require the body of roll to have hardness, also require to have the ability of very high wearability and antifatigue pull out type fracture simultaneously up to 56～59HRc.For this reason, manufacturer adopts 9Cr3Mo high-carbon chrome-moly steel, forms the manufacturing cost costliness through forging and the manufacturing of complicated heat treatment process.Yet the waste of annual cold rolling intermediate calender rolls is huge, scraps because of not repairing again afterwards, and this causes great economic loss for China's metallurgy industry.
Reparation to cold rolling intermediate calender rolls mainly is to adopt overlaying process at present.The step of this method comprises weld preheating, built-up welding and the post weld heat treatment process of the body of roll.Wherein built-up welding comprises the built-up welding of transition zone and working lining again.Employed resurfacing welding material is the key technology in decision surfacing layer metal performance and roll service life in this operation.
Summary of the invention
The object of the present invention is to provide a kind of repair cold-rolling intermediate calender rolls working lining flux-cored wire.The hardness of this welding wire deposited metal reaches 55～59HRc, ballistic work 〉=40J.Thereby have very strong wearability, crack resistance and an antifatigue destructive characteristics.
For achieving the above object, the present invention is realized by following technical proposals.With thickness is that 0.3～0.8mm, width are that the deep draw cold-rolled strip of 8.0～16.0mm is the crust raw material of welding wire, with metal powder and ferroalloy as main medicine core welding agent, cut out band, the oven dry of deoiling, the oven dry of medicine core batching through steel band, steel band is rolled into " U " type and filling welding agent in " U " type groove, again steel band is rolled into " O " type, is drawn into the flux-cored wire that diameter is 2.0～4.0mm then.The composition, specification and the content that it is characterized in that the medicine core are:
Medicine core component content (wt%) granularity (order)
Mid-carbon fe-mn: 6.12～18.56 80
Crome metal: 5.56～9.89 80
High carbon ferro-chrome: 7.85～19.23 60
Metal molybdenum: 4.50～15.55 80
Vanadium iron: 2.65～8.80 60
Ferrosilicon: 0.00～4.50 60
Ferrotungsten: 0.50～6.62 60
Rare earth: 1.20～8.65 100
Iron powder: 15.0～30.50 100
Fluorite: 6.00～12.55 60
Magnesia: 4.55～14.00 60
The invention has the advantages that manufacture method is simple, the stacking coating metal function admirable of welding wire reaches the technique for overlaying requirement of cold rolling intermediate calender rolls fully.
The specific embodiment
Example one
Mid-carbon fe-mn: 8.42%
Crome metal: 12.50%
High carbon ferro-chrome: 15.34%
Metal molybdenum: 6.21%
Vanadium iron: 6.72%
Ferrosilicon: 4.50%
Ferrotungsten: 5.52%
Rare earth: 3.25%
Iron powder: 28.04%
Fluorite: 5.0%
Magnesia: 4.50%
Welding wire stacking coating metal performance:
Rockwell hardness: 56HRc, impact toughness=48 (impact test piece size: 10 * 5 * 55mm, not gap)
Example two
Mid-carbon fe-mn: 8.42%
Crome metal: 12.50%
High carbon ferro-chrome: 18.56%
Metal molybdenum: 7.80%
Vanadium iron: 6.72%
Ferrosilicon: 4.50%
Ferrotungsten: 6.52%
Rare earth: 5.50%
Iron powder: 19.98%
Fluorite: 5.0%
Magnesia: 4.50%
Welding wire stacking coating metal performance:
Rockwell hardness: 58HRc, impact toughness=43 (impact test piece size: 10 * 5 * 55mm, not gap)
Claims (1)
1. repair cold-rolling intermediate calender rolls working lining flux-cored wire, this welding wire is that 0.3～0.8mm, width are that the deep draw cold-rolled strip of 8.0～16.0mm is the crust raw material of welding wire with thickness, with metal powder and ferroalloy as main medicine core welding agent, cut out band, the oven dry of deoiling, the oven dry of medicine core batching through steel band, steel band is rolled into " U " type and filling welding agent in " U " type groove, again steel band is rolled into " O " type, be drawn into the flux-cored wire that diameter is 2.0～4.0mm then, it is characterized in that composition, specification and the content of medicine core is:
Medicine core component content (wt%) granularity (order)
Mid-carbon fe-mn: 6.12～18.56 80
Crome metal: 5.56～9.89 80
High carbon ferro-chrome: 7.85～19.23 60
Metal molybdenum: 4.50～15.55 80
Vanadium iron: 2.65～8.80 60
Ferrosilicon: 0.00～4.50 60
Ferrotungsten: 0.50～6.62 60
Rare earth: 1.20～8.65 100
Iron powder: 15.0～30.50 100
Fluorite: 6.00～12.55 60
Magnesia: 4.55～14.00 60
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02131093 CN1238151C (en) | 2002-10-09 | 2002-10-09 | Repairing cold-rolled intermediat roll working lining build-up welding agent core welding stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02131093 CN1238151C (en) | 2002-10-09 | 2002-10-09 | Repairing cold-rolled intermediat roll working lining build-up welding agent core welding stick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413793A true CN1413793A (en) | 2003-04-30 |
| CN1238151C CN1238151C (en) | 2006-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02131093 Expired - Fee Related CN1238151C (en) | 2002-10-09 | 2002-10-09 | Repairing cold-rolled intermediat roll working lining build-up welding agent core welding stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1238151C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339178C (en) * | 2005-07-08 | 2007-09-26 | 湘潭大学 | High chromium cast iron self protective build-up welding cored welding wire and its usage |
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101804530A (en) * | 2010-05-07 | 2010-08-18 | 邯郸市永固冶金备件有限公司 | Special flux-cored wire for surfacing repair of BD roller |
| CN101837522A (en) * | 2010-06-11 | 2010-09-22 | 河海大学常州校区 | Vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire |
| CN101434017B (en) * | 2007-11-14 | 2010-11-03 | 中冶集团建筑研究总院 | Welding wire for welding cold-rolled steel strip strain roll |
| CN101954555A (en) * | 2010-10-19 | 2011-01-26 | 山东科技大学 | Method for manufacturing and using wear-resistant surfacing welding electrode |
| CN102528323A (en) * | 2012-01-18 | 2012-07-04 | 上海金刚冶金材料有限公司 | Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire |
| CN102528324A (en) * | 2012-01-18 | 2012-07-04 | 上海金刚冶金材料有限公司 | Alloy powder for manufacturing tubular welding wire and preparation method thereof |
| CN102764941A (en) * | 2012-07-03 | 2012-11-07 | 宁波隆兴焊割科技股份有限公司 | Carbon dioxide gas shielded welding flux-cored wire |
| CN103418923A (en) * | 2013-08-30 | 2013-12-04 | 北京工业大学 | Overlaying repair method for worn roller |
| CN106141505A (en) * | 2016-08-05 | 2016-11-23 | 天长市通联焊业有限公司 | A kind of good toughness hardness height flux-cored wire |
| CN106425156A (en) * | 2016-07-14 | 2017-02-22 | 宁波诺迈特新材料科技有限公司 | Flux-cored wire and application, deposited metal and coating thereof |
| CN106862800A (en) * | 2017-03-31 | 2017-06-20 | 安徽再制造工程设计中心有限公司 | The built-up welding of steel pipe forming roller, flux cored wire used for submerged arc welding and its welding procedure |
| CN109249152A (en) * | 2018-09-06 | 2019-01-22 | 四川大西洋焊接材料股份有限公司 | The dedicated hard-face overlaying welding welding wire of core bar for rolling seamless and preparation method |
| CN109434320A (en) * | 2018-11-27 | 2019-03-08 | 安徽泰尔表面工程技术有限公司 | A kind of wear-resisting welding wire with flux core and the method that part is repaired using it |
-
2002
- 2002-10-09 CN CN 02131093 patent/CN1238151C/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339178C (en) * | 2005-07-08 | 2007-09-26 | 湘潭大学 | High chromium cast iron self protective build-up welding cored welding wire and its usage |
| CN101434017B (en) * | 2007-11-14 | 2010-11-03 | 中冶集团建筑研究总院 | Welding wire for welding cold-rolled steel strip strain roll |
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101804530A (en) * | 2010-05-07 | 2010-08-18 | 邯郸市永固冶金备件有限公司 | Special flux-cored wire for surfacing repair of BD roller |
| CN101804530B (en) * | 2010-05-07 | 2011-08-24 | 邯郸市永固冶金备件有限公司 | Special flux-cored wire for surfacing repair of BD roller |
| CN101837522B (en) * | 2010-06-11 | 2013-06-19 | 河海大学常州校区 | Vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire |
| CN101837522A (en) * | 2010-06-11 | 2010-09-22 | 河海大学常州校区 | Vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire |
| CN101954555A (en) * | 2010-10-19 | 2011-01-26 | 山东科技大学 | Method for manufacturing and using wear-resistant surfacing welding electrode |
| CN102528323B (en) * | 2012-01-18 | 2014-05-14 | 上海金刚冶金材料有限公司 | Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire |
| CN102528323A (en) * | 2012-01-18 | 2012-07-04 | 上海金刚冶金材料有限公司 | Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire |
| CN102528324A (en) * | 2012-01-18 | 2012-07-04 | 上海金刚冶金材料有限公司 | Alloy powder for manufacturing tubular welding wire and preparation method thereof |
| CN102528324B (en) * | 2012-01-18 | 2014-04-09 | 上海金刚冶金材料有限公司 | Method for preparing alloy powder for manufacturing tubular welding wire |
| CN102764941A (en) * | 2012-07-03 | 2012-11-07 | 宁波隆兴焊割科技股份有限公司 | Carbon dioxide gas shielded welding flux-cored wire |
| CN103418923B (en) * | 2013-08-30 | 2015-06-17 | 北京工业大学 | Overlaying repair method for worn roller |
| CN103418923A (en) * | 2013-08-30 | 2013-12-04 | 北京工业大学 | Overlaying repair method for worn roller |
| CN106425156A (en) * | 2016-07-14 | 2017-02-22 | 宁波诺迈特新材料科技有限公司 | Flux-cored wire and application, deposited metal and coating thereof |
| CN106141505A (en) * | 2016-08-05 | 2016-11-23 | 天长市通联焊业有限公司 | A kind of good toughness hardness height flux-cored wire |
| CN106141505B (en) * | 2016-08-05 | 2019-04-30 | 天长市通联焊业有限公司 | A kind of high flux-cored wire of good toughness hardness |
| CN106862800A (en) * | 2017-03-31 | 2017-06-20 | 安徽再制造工程设计中心有限公司 | The built-up welding of steel pipe forming roller, flux cored wire used for submerged arc welding and its welding procedure |
| CN109249152A (en) * | 2018-09-06 | 2019-01-22 | 四川大西洋焊接材料股份有限公司 | The dedicated hard-face overlaying welding welding wire of core bar for rolling seamless and preparation method |
| CN109249152B (en) * | 2018-09-06 | 2021-04-30 | 四川大西洋焊接材料股份有限公司 | Special hard surfacing welding wire for mandrel for rolling seamless steel tube and preparation method |
| CN109434320A (en) * | 2018-11-27 | 2019-03-08 | 安徽泰尔表面工程技术有限公司 | A kind of wear-resisting welding wire with flux core and the method that part is repaired using it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1238151C (en) | 2006-01-25 |
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