CN1923436A - Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same - Google Patents
Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same Download PDFInfo
- Publication number
- CN1923436A CN1923436A CN 200610021799 CN200610021799A CN1923436A CN 1923436 A CN1923436 A CN 1923436A CN 200610021799 CN200610021799 CN 200610021799 CN 200610021799 A CN200610021799 A CN 200610021799A CN 1923436 A CN1923436 A CN 1923436A
- Authority
- CN
- China
- Prior art keywords
- cored wire
- cold
- flux
- rolling intermediate
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a welding drug core welding wire used to repair the working layer of cold rolling middle roller. Wherein, said welding wire comprises coat and drug core; said drug core comprises medium-carbon ferromanganese at 0.8-1.4%, medium-low carbon ferrochrome at 6.0-9.0%, ferro-molybdenum at 1.0-3.0%, ferro-vanadium at 0.7-1.5%, ferrocolumbium at 0.06-0.16%, nickel at 0.5-1.2%, silicon iron at 0.60-1.2%, rare-earth at 1.0-5.0%, derbyshire spar at 4.5-10.5%, and the left is iron powder. The invention has simple process, and the rigidity is HRC25-35, without crack.
Description
Technical field
The invention belongs to welding material and manufacture method thereof, particularly relate to a kind of repair cold-rolling intermediate calender rolls transition zone flux-cored wire and manufacture method thereof.
Background technology
Cold rolling intermediate calender rolls is the critical component that cold-rolled steel sheet is produced required parts, bear bigger alternate stress during work, hardness of roll body reaches HRC56～59, also require to have the ability of anti-strip preferably simultaneously, present for this reason manufacturer generally adopts high-carbon low-alloy steel such as 9Cr3Mo through forging and the manufacturing of complicated heat treatment process forms, and costs an arm and a leg.The consumption of the annual cold rolling intermediate calender rolls in the whole nation is very big, just scraps because of repairing very big the reparation hardly of difficulty again, causes enormous economic loss.
Technique for overlaying is mainly adopted in reparation to cold rolling intermediate calender rolls, and it comprises weld preheating, built-up welding and the post weld heat treatment process of roller.Built-up welding comprises the built-up welding of transition zone and working lining, and the resurfacing welding material that uses in this operation is the key factor in decision surfacing layer metal performance and cold rolling intermediate calender rolls service life.Also there is not at present special cold rolling intermediate calender rolls reparation transition zone welding wire.
Summary of the invention
Technical problem to be solved by this invention provides a kind of repair cold-rolling intermediate calender rolls transition zone flux-cored wire, and this welding wire built-up welding metal hardness reaches HRC25～35, has good cracking resistance.
The present invention also will provide a kind of manufacture method of above-mentioned welding wire.
The technical scheme that technical solution problem of the present invention is adopted is: repair cold-rolling intermediate calender rolls transition zone flux-cored wire, comprise crust and medicine core, the component of described medicine core content by weight percentage comprises: mid-carbon fe-mn: 0.8～1.4%, medium carbon ferrochrome: 6.0～9.0%, molybdenum-iron: 1.0～3.0%, vanadium iron: 0.7～1.5%, ferro-niobium 0.06～0.16%, metallic nickel: 0.5～1.2%, ferrosilicon: 0.60～1.2%, rare earth: 1.0～5.0%, fluorite: 4.5～10.5%, all the other are iron powders.
Further, the granularity (order) of described medicine core component is respectively: mid-carbon fe-mn: 80～120, medium carbon ferrochrome: 80～120, molybdenum-iron: 80～120, vanadium iron: 60～120, ferro-niobium: 80～120, metallic nickel: 80～120, ferrosilicon: 60～120, rare earth: 80～120, fluorite: 60～120, iron powder: 80～120.
Above-mentioned repair cold-rolling intermediate calender rolls transition zone may further comprise the steps: be rolled into " U " type after the oven dry of 1) cold-rolled strip being with, being deoiled through cutting out with the manufacture method of flux-cored wire; 2) preparation medicine core batching and oven dry; 3) with being rolled into " O " type behind the filling medicine core in steel band " U " the type groove, be drawn into flux-cored wire then.
Further, the described cold-rolled strip of step 1 is that thickness is that 0.3～0.8mm, width are the cold-rolled strip of 8.0～16.0mm.
Further, described cold-rolled strip adopts the HO8A cold-rolled strip.
Further, the described flux-cored wire of step 3 is that diameter is the flux-cored wire of 2.0～5.0mm.
The invention has the beneficial effects as follows: manufacture method is simple, and the deposited metal hardness of welding wire is HRC25～35, and cracking resistance is good in the weld deposit process, is difficult for cracking, when reaching cold rolling intermediate calender rolls built-up welding fully and repairing to the specification requirement of transition zone built-up welding.
The specific embodiment
Because the carbon content of cold rolling intermediate calender rolls mother metal is higher, and the carbon content of transition zone welding wire is lower, on cold rolling intermediate calender rolls mother metal during built-up welding, the carbon content of surfacing layer metal just can reduce a lot, thereby is not prone to crackle in the weld deposit process like this.
V and Nb element all have stronger crystal grain thinning and solution strengthening ability, V and Nb element also have stronger precipitation strength ability, they and Mo element all are the strong carbide forming elements, add that these alloying elements make the crystallite dimension of deposited metal little, hardness is high, toughness is better, preferred 0.06～0.16%, the molybdenum-iron preferred 1.0～3.0% of preferred 0.7～1.5% (weight percent content, as follows) of vanadium iron of the present invention, ferro-niobium.
Adding Ni element can improve the intensity and the toughness of alloy, contains at the same time under the situation of Ni and Cr element, and the Ni element can also improve the temper resistance of hardfacing alloy layer greatly, metallic nickel of the present invention preferred 0.5～1.2%.
Add more Cr and improve the Cr/C ratio, easily generate the high rigidity M of isolated strip form
7C
3The type carbide, than the M of net distribution
3C type carbide can strengthen the continuity of matrix, thereby improves the toughness of integral material, medium carbon ferrochrome of the present invention preferred 6.0～9.0%.
The Mn element can promote the dissolving of strong carbide in austenite, and the content of alloying element in balance carbide and the austenite is given full play to the precipitation strength and the solution strengthening ability of V, Nb and Mo element; In addition, improve Mn/C, thereby improve the toughness of overlay cladding to a certain extent, but Mn content is unsuitable too high, otherwise can increase the temper brittleness of overlay cladding, mid-carbon fe-mn of the present invention preferred 0.8～1.4% than the effect that can also play the formation that reduces grain boundary carbide.
The adding of rare earth has hardfacing alloy to suppress preferably hydrogen embrittlement, reduce temper brittleness and suppress P poly-partially ability on crystal boundary in heat treatment process, thereby can reach the purpose of the toughness of raising hardfacing alloy.In addition, because rare earth has the effect that makes inclusion modification, purifies crystal boundary and stronger crystal grain thinning, join in the resurfacing welding material and can play the effect of improving the overlay cladding performance, rare earth of the present invention preferred 1.0～5.0%.
Si deoxidizing capacity in the ferrosilicon is very strong, can form SiO with the FeO effect
2, enter slag then and be excluded; Si can improve the quenching degree and the intensity of surfacing layer metal, and improves its temper resistance, but Si can not be too high, thereby otherwise easily produces grain boundary carbide and be prone to crackle.Ferrosilicon of the present invention preferred 0.60～1.2%.
The main component of fluorite is CaF
2, it can reduce the fusing point and the viscosity of slag, increases flowability, is beneficial to slag making; It can reduce the hydrogen dividing potential drop in the arc atmosphere, causes hydrogen content minimizing in the weld metal, improves the toughness and the anti-crack ability of weld metal.Fluorite of the present invention preferred 4.5～10.5%.
Embodiment 1:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: medium carbon ferrochrome 0.8%: molybdenum-iron 6.0%: vanadium iron 1.0%: 0.7%, ferro-niobium 0.06%, metallic nickel: ferrosilicon 0.5%: rare earth 0.60%: fluorite 1.0%: 4.5%, all the other are iron powders.
The hardness of produced welding wire built-up welding layer metal is greater than HRC25.
Embodiment 2:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: medium carbon ferrochrome 1.4%: molybdenum-iron 9.0%: vanadium iron 3.0%: 1.5%, ferro-niobium 0.16%, metallic nickel: ferrosilicon 1.2%: rare earth 1.2%: fluorite 5.0%: 10.5%, all the other are iron powders.
Produced welding wire built-up welding layer metal hardness is HRC35.
Embodiment 3:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: medium carbon ferrochrome 1.2%: molybdenum-iron 8.0%: vanadium iron 2.5%: 1.2%, ferro-niobium 0.16%, metallic nickel: ferrosilicon 0.8%: rare earth 1.1%: fluorite 4.0%: 8.5%, all the other are iron powders.
Produced welding wire built-up welding layer metal hardness is HRC32.
Embodiment 4:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: medium carbon ferrochrome 1.2%: molybdenum-iron 9.0%: vanadium iron 2.8%: 1.4%, ferro-niobium 0.16%, metallic nickel: ferrosilicon 0.8%: rare earth 1.2%: fluorite 4.0%: 8.5%, all the other are iron powders.
The hardness of produced welding wire built-up welding layer metal is HRC33.
Claims (6)
1, repair cold-rolling intermediate calender rolls transition zone flux-cored wire, comprise crust and medicine core, it is characterized in that: the component of described medicine core content by weight percentage comprises: mid-carbon fe-mn: 0.8～1.4%, medium carbon ferrochrome: 6.0～9.0%, molybdenum-iron: 1.0～3.0%, vanadium iron: 0.7～1.5%, ferro-niobium 0.06～0.16%, metallic nickel: 0.5～1.2%, ferrosilicon: 0.60～1.2%, rare earth: 1.0～5.0%, fluorite: 4.5～10.5%, all the other are iron powders.
2, repair cold-rolling intermediate calender rolls transition zone flux-cored wire as claimed in claim 1, it is characterized in that: the granularity (order) of described medicine core component is respectively: mid-carbon fe-mn: 80～120, medium carbon ferrochrome: 80～120, molybdenum-iron: 80～120, vanadium iron: 60～120, ferro-niobium: 80～120, metallic nickel: 80～120, ferrosilicon: 60～120, rare earth: 80～120, fluorite: 60～120, iron powder: 80～120.
3, the described repair cold-rolling intermediate calender rolls of claim 1 transition zone is characterized in that: may further comprise the steps: be rolled into " U " type after the oven dry of 1) cold-rolled strip being with, being deoiled through cutting out with the manufacture method of flux-cored wire; 2) preparation medicine core batching and oven dry; 3) with being rolled into " O " type behind the filling medicine core in steel band " U " the type groove, be drawn into flux-cored wire then.
4, the repair cold-rolling intermediate calender rolls transition zone as claimed in claim 3 manufacture method of flux-cored wire, it is characterized in that: the described cold-rolled strip of step 1 is that thickness is that 0.3～0.8mm, width are the cold-rolled strip of 8.0～16.0mm.
5, repair cold-rolling intermediate calender rolls transition zone as claimed in claim 4 is characterized in that: described cold-rolled strip employing H08A cold-rolled strip with the manufacture method of flux-cored wire.
6, the repair cold-rolling intermediate calender rolls transition zone as claimed in claim 3 manufacture method of flux-cored wire, it is characterized in that: the described flux-cored wire of step 3 is that diameter is the flux-cored wire of 2.0～5.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021799 CN1923436A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021799 CN1923436A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1923436A true CN1923436A (en) | 2007-03-07 |
Family
ID=37816354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610021799 Pending CN1923436A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1923436A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101386115B (en) * | 2008-10-13 | 2011-03-16 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN101780609B (en) * | 2009-01-15 | 2012-03-07 | 山东聚力焊接材料有限公司 | Slag-free flux-cored wire process |
| CN102441748A (en) * | 2011-11-16 | 2012-05-09 | 燕山大学 | Special welding rod for surfacing and repairing broken teeth of heavy-duty high-speed gear |
| CN107225339A (en) * | 2017-06-02 | 2017-10-03 | 重庆大学 | A kind of self-shield flux-cored wire for having sandwich of layers for heavy-duty forging die and preparation method thereof |
| CN107350661A (en) * | 2017-08-19 | 2017-11-17 | 安徽鼎恒再制造产业技术研究院有限公司 | The transition zone of built-up welding submerged-arc welding flux cored wire 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 |
| CN110170768A (en) * | 2019-06-19 | 2019-08-27 | 鞍钢未来钢铁研究院有限公司 | A kind of Ni-based electric arc spraying flux-cored wire and preparation method |
| CN110216399A (en) * | 2019-06-19 | 2019-09-10 | 鞍钢未来钢铁研究院有限公司 | A kind of flux-cored wire and preparation method for laminar flow roller electric arc spraying |
| CN110253174A (en) * | 2019-06-19 | 2019-09-20 | 鞍钢未来钢铁研究院有限公司 | A kind of continuous cast roller flux-cored welding wire for overlaying welding and preparation method |
| CN114571132A (en) * | 2021-12-14 | 2022-06-03 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for extrusion roller transition layer |
| CN114589431A (en) * | 2021-12-20 | 2022-06-07 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for cover layer of extrusion roll |
-
2006
- 2006-09-08 CN CN 200610021799 patent/CN1923436A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101386115B (en) * | 2008-10-13 | 2011-03-16 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN101780609B (en) * | 2009-01-15 | 2012-03-07 | 山东聚力焊接材料有限公司 | Slag-free flux-cored wire process |
| CN102441748A (en) * | 2011-11-16 | 2012-05-09 | 燕山大学 | Special welding rod for surfacing and repairing broken teeth of heavy-duty high-speed gear |
| CN107225339A (en) * | 2017-06-02 | 2017-10-03 | 重庆大学 | A kind of self-shield flux-cored wire for having sandwich of layers for heavy-duty forging die and preparation method thereof |
| CN107225339B (en) * | 2017-06-02 | 2019-04-05 | 重庆大学 | A kind of self-shield flux-cored wire and preparation method thereof for heavy-duty forging die tool sandwich of layers |
| CN107350661A (en) * | 2017-08-19 | 2017-11-17 | 安徽鼎恒再制造产业技术研究院有限公司 | The transition zone of built-up welding submerged-arc welding flux cored wire and its welding procedure |
| 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 |
| 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 |
| CN110170768A (en) * | 2019-06-19 | 2019-08-27 | 鞍钢未来钢铁研究院有限公司 | A kind of Ni-based electric arc spraying flux-cored wire and preparation method |
| CN110253174A (en) * | 2019-06-19 | 2019-09-20 | 鞍钢未来钢铁研究院有限公司 | A kind of continuous cast roller flux-cored welding wire for overlaying welding and preparation method |
| CN110216399A (en) * | 2019-06-19 | 2019-09-10 | 鞍钢未来钢铁研究院有限公司 | A kind of flux-cored wire and preparation method for laminar flow roller electric arc spraying |
| CN110216399B (en) * | 2019-06-19 | 2021-08-03 | 鞍钢未来钢铁研究院有限公司 | Flux-cored wire for laminar flow roller arc spraying and preparation method |
| CN110170768B (en) * | 2019-06-19 | 2022-03-15 | 鞍钢未来钢铁研究院有限公司 | Flux-cored wire for nickel-based arc spraying and preparation method thereof |
| CN114571132A (en) * | 2021-12-14 | 2022-06-03 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for extrusion roller transition layer |
| CN114571132B (en) * | 2021-12-14 | 2023-07-18 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for transition layer of squeeze roller |
| CN114589431A (en) * | 2021-12-20 | 2022-06-07 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for cover layer of extrusion roll |
| CN114589431B (en) * | 2021-12-20 | 2023-07-18 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for extrusion roller cover layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1923435A (en) | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same | |
| CN1923436A (en) | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller buffer layer and method for manufacturing same | |
| CN1923437A (en) | Pile-up welding flux-cored wire for restoring cold rolling support roller operational layer and method for manufacturing same | |
| CN101391352B (en) | Flux-cored wire for repair cold-rolling support roll operational layer and preparation method thereof | |
| CN101386115B (en) | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof | |
| CN101456104B (en) | Flux-cored wire for building up cold-rolling middle roller working layer and preparation method thereof | |
| CN101733580B (en) | 800MPa-grade high-strength high-tenacity gas shielded welding wire | |
| CN101987403B (en) | 900MPa-level high-performance gas shielded welding wire | |
| CN1251837C (en) | Soldering wire material containing nitrogen alloyed alloy core in form of hard surface | |
| CN102677046B (en) | Alloy composite special for laser cladding of rolling mill housings | |
| CN1739907A (en) | High hardness submerged arc welding wire | |
| CN112122821B (en) | Wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support component | |
| CN1280061C (en) | Flux-cored wire for backing roll build-up welding | |
| CN101077554A (en) | Half steel roller submerged arc building-up flux-cored wire | |
| CN109082579A (en) | A kind of impact resistance Wear-Resistant Compound Steel Plate | |
| CN102218621B (en) | Gas shielded welding wire used for X100 pipeline steel | |
| CN107186378A (en) | A kind of preparation method of pipe-line flux-cored wire | |
| CN1810438A (en) | Self-protecting dot and bead welding wire with metal core | |
| CN102744528B (en) | Flux-cored wire, method for manufacturing coil box bending roller, and coil box bending roller | |
| CN105081612A (en) | Plasma arc overlaying alloy powder used for heat-working die | |
| CN107081508A (en) | Thickness connects method in the double wire hidden arc welding of the 15 20mm ultrafast cold X70 steel of high-performance | |
| CN100460135C (en) | Gas protected welding wire in 600 MPa level | |
| CN110125572A (en) | It is a kind of can post weld heat treatment seamless submerged arc flux-cored wire | |
| CN101633085B (en) | Stainless steel welding wire and technology for welding same | |
| CN112719692A (en) | 900 MPa-grade high-strength steel gas shielded solid welding wire and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |