CN104148395A - High-speed steel working roll for hot rolled sheet steckel mill in iron works - Google Patents
High-speed steel working roll for hot rolled sheet steckel mill in iron works Download PDFInfo
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- CN104148395A CN104148395A CN201410243407.7A CN201410243407A CN104148395A CN 104148395 A CN104148395 A CN 104148395A CN 201410243407 A CN201410243407 A CN 201410243407A CN 104148395 A CN104148395 A CN 104148395A
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- roll
- speed steel
- working roll
- steel working
- icdp
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- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 54
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 9
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- 239000000126 substance Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 5
- 239000010439 graphite Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000004615 ingredient Substances 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a high-speed steel working roll for a hot rolled sheet steckel mill in an iron works. Outer-layer chemical ingredients of the high-speed steel working roll include, by 100% of total mass, C 0.5-3.0%, Si 0.1-2.0%, Mn 0.1-3.0%, P <= 0.1%, S <= 0.03%, Ni 0.3-6.0%, Cr 0.3-8.0%, Mo 2.5-7.5%, V 3.0-8.5%, W 0.1-5.0%, Ti 0.2-2.0%, Mg <= 0.02%, graphite <= 0.2% and the balance Fe and inevitable impurities. The outer-layer chemical ingredients of the high-speed steel working roll are changed, accordingly the high-speed steel working roll for the hot rolled sheet steckel mill in the iron works can be higher that ICDP in hardness and can be almost the same as the ICDP in impact force resistance, products can be rolled to be thinner, and product slipping phenomena can be decreased. If a finish-rolling working roll of the steckel mill is replaced by the high-speed steel working roll for the hot rolled sheet steckel mill in the iron works, the abrasion amount of the roll is very low, the surface accuracy of the produced products is good, the online usage time of the roll is very long, the service life of the roll is prolonged, the roll changing times are decreased, and the productivity and production efficiency are greatly improved.
Description
Technical field:
The invention belongs to metallurgical roller and manufacture field, be specifically related to a kind of ironworks processed SPHC steekle mill high-speed steel working roll.
Background technology:
When present stage hot rolling steel mill steekle mill is produced thin plate; the working roll of finishing stand mainly uses high ferrochrome roll or ICDP roll, and their shortcoming is because roller surface abrasion-resistance is low, needs frequent roll change; and the stock removal on work top layer is many, and body surface is coarse.
When steekle mill precision rolling working roll uses high ferrochrome or ICDP roll, body surface is coarse, and not wear-resisting, and abrasion are large.And the high-speed steel roll of producing by existing high-speed steel technology, because the impulsive force of product breaker roll is larger, and high-speed steel roll hardness is very high, causes being easy to crack, and finally can cause spalling of rolls.
In order to address these problems, need to consider that exploitation high-speed steel product substitutes them.
Summary of the invention:
The object of this invention is to provide one higher than ICDP hardness, anti-impact force is similar with ICDP, can the thickness of product be rolled thinlyyer, the ironworks processed SPHC steekle mill high-speed steel working roll that the phenomenon that product skids reduces.
Ironworks processed of the present invention SPHC steekle mill high-speed steel working roll, is characterized in that its outer chemical analysis is counted by gross mass 100%: C:0.5～3.0%, Si:0.1～2.0%; Mn:0.1～3.0%; P :≤0.1%; S :≤0.03%; Ni:0.3～6.0%; Cr:0.3～8.0%; Mo:2.5～7.5%; V:3.0～8.5%; W:0.1～5.0%; Ti:0.2～2.0%; Mg :≤0.02%; Graphite :≤0.2%, all the other are Fe and inevitable impurity.
Ironworks processed of the present invention SPHC steekle mill high-speed steel working roll, its preparation method is: prepare burden, smelting, refining, join sand, coating, moulding, mould drying, matched moulds, cast, sand removal, finishing, inspection, heat treatment, inspection, hacking hole, rough turn, secondary tack, centering, finish turning, boring [brill] hole, milling key, brush flat side, grinding machine, polishing, finished product, inspection, pack and warehouse-in with component and the content of high-speed steel working roll according to above-mentioned ironworks processed SPHC steekle mill.The preparation technology who is ironworks processed of the present invention SPHC steekle mill high-speed steel working roll and conventional ICDP roll is basic identical, just has following 3 differences:
1, they are different with the chemical composition that the skin of conventional ICDP roll uses with high-speed steel working roll for ironworks processed SPHC steekle mill, and the chemical composition that the skin of ironworks processed SPHC steekle mill use high-speed steel working roll uses is described above.
2, ironworks processed SPHC steekle mill is different from the cool time of conventional ICDP roll with high-speed steel working roll, ICDP roll cool time: 2～3 weeks, and ironworks processed SPHC steekle mill is used the cool time of high-speed steel working roll: 4～5 weeks, the prolongation of cool time, the fatigue phenomenon of high-speed steel roll improves, and has also been improved percentage elongation.
3, ironworks processed SPHC steekle mill is longer than conventional ICDP roll with the casting time of high-speed steel working roll:
The skin of the roll casting time: ICDP roll: 3～7 minutes, and ironworks processed of the present invention SPHC steekle mill high-speed steel working roll: 2-10 minute;
The core of the roll casting time: ICDP roll: 5～20 minutes, ironworks processed SPHC steekle mill high-speed steel working roll: 3～30 minutes.
Ironworks processed of the present invention SPHC steekle mill high-speed steel working roll, there is change in its outer chemical composition, thereby make ironworks processed SPHC steekle mill high-speed steel working roll higher than ICDP hardness, anti-impact force is similar with ICDP, can the thickness of product be rolled thinlyyer, the phenomenon that product skids reduces.The words of ironworks processed of the present invention SPHC steekle mill high-speed steel working roll for steekle mill precision rolling working roll, roll wear amount is little, the product surface precision of producing is fine, roll is very long online service time, extend roll changing time, reduce roll change number of times, greatly increased productivity and production efficiency.
Detailed description of the invention:
Following examples are to further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
The ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment, its outer chemical analysis, counts by gross mass 100%: C:0.5%, Si:0.1%; Mn:0.1%; P :≤0.1%; S :≤0.03%; Ni:0.3%; Cr:0.3%; Mo:2.5%; V:3.0%; W:0.1%; Ti:0.2%; Mg :≤0.02%; Graphite :≤0.2%, all the other are Fe and inevitable impurity.
Prepare burden, smelting, refining, join sand, coating, moulding, mould drying, matched moulds, cast, sand removal, finishing, inspection, heat treatment, inspection, hacking hole, rough turn, secondary tack, centering, finish turning, boring [brill] hole, milling key, brush flat side, grinding machine, polishing, finished product, inspection, pack and warehouse-in with component and the content of high-speed steel working roll according to the ironworks processed SPHC steekle mill of the present embodiment, obtain the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment.
Be that the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment and the preparation technology of conventional ICDP roll are basic identical, just have following 3 differences:
1, they are different with the chemical composition that the skin of conventional ICDP roll uses with high-speed steel working roll for ironworks processed SPHC steekle mill, and the chemical composition that the skin of ironworks processed SPHC steekle mill use high-speed steel working roll uses is as described in the present embodiment.
2, they are different with the cool time of conventional ICDP roll with high-speed steel working roll for ironworks processed SPHC steekle mill, ICDP roll cool time: 2 weeks, and the cool time of ironworks processed SPHC steekle mill use high-speed steel working roll: 4 weeks.
3, ironworks processed SPHC steekle mill is longer than conventional ICDP roll with the casting time of high-speed steel working roll:
The skin of the roll casting time: ICDP roll: 3 minutes, ironworks processed SPHC steekle mill high-speed steel working roll: 2 minutes;
The core of the roll casting time: ICDP roll: 5 minutes, ironworks processed SPHC steekle mill high-speed steel working roll: 3 minutes.
The ironworks processed SPHC steekle mill high-speed steel working roll preparing, its hardness is HS80-90, higher than the hardness of ICDP roll, its anti-impact force and ICDP roll are similar.Use it for after steekle mill precision rolling working roll, roll wear amount is little, and the product surface precision of production is fine, roll has reached 1-2 hour/time online service time, thereby extend roll changing time, reduced roll change number of times, greatly increased productivity and production efficiency.
Embodiment 2:
The ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment, its outer chemical analysis, counts by gross mass 100%: C:3.0%, Si:2.0%; Mn:3.0%; P :≤0.1%; S :≤0.03%; Ni:6.0%; Cr:8.0%; Mo:7.5%; V:8.5%; W:5.0%; Ti:2.0%; Mg :≤0.02%; Graphite :≤0.2%, all the other are Fe and inevitable impurity.
Prepare burden, smelting, refining, join sand, coating, moulding, mould drying, matched moulds, cast, sand removal, finishing, inspection, heat treatment, inspection, hacking hole, rough turn, secondary tack, centering, finish turning, boring [brill] hole, milling key, brush flat side, grinding machine, polishing, finished product, inspection, pack and warehouse-in with component and the content of high-speed steel working roll according to the ironworks processed SPHC steekle mill of the present embodiment, obtain the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment.
Be that the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment and the preparation technology of conventional ICDP roll are basic identical, just have following 3 differences:
1, they are different with the chemical composition that the skin of conventional ICDP roll uses with high-speed steel working roll for ironworks processed SPHC steekle mill, and the chemical composition that the skin of ironworks processed SPHC steekle mill use high-speed steel working roll uses is as described in the present embodiment.
2, they are different from the cool time of conventional ICDP roll with high-speed steel working roll for ironworks processed SPHC steekle mill, ICDP roll cool time: 3 weeks, and ironworks processed SPHC steekle mill is used the cool time of high-speed steel working roll: 5 weeks, the prolongation of cool time, the fatigue phenomenon of high-speed steel roll improves, and has also been improved percentage elongation.
3, ironworks processed SPHC steekle mill is longer than conventional ICDP roll with the casting time of high-speed steel working roll:
The skin of the roll casting time: ICDP roll: 7 minutes, ironworks processed SPHC steekle mill high-speed steel working roll: 10 minutes;
The core of the roll casting time: ICDP roll: 20 minutes, ironworks processed SPHC steekle mill high-speed steel working roll: 30 minutes.
The ironworks processed SPHC steekle mill high-speed steel working roll preparing, its hardness is HS80-90, higher than the hardness of ICDP roll, its anti-impact force and ICDP roll are similar.Use it for after steekle mill precision rolling working roll, roll wear amount is little, and the product surface precision of production is fine, roll has reached 1-2 hour/time online service time, thereby extend roll changing time, reduced roll change number of times, greatly increased productivity and production efficiency.
Claims (1)
1. an ironworks processed SPHC steekle mill high-speed steel working roll, is characterized in that its outer chemical analysis is counted by gross mass 100%: C:0.5～3.0%, Si:0.1～2.0%; Mn:0.1～3.0%; P :≤0.1%; S :≤0.03%; Ni:0.3～6.0%; Cr:0.3～8.0%; Mo:2.5～7.5%; V:3.0～8.5%; W:0.1～5.0%; Ti:0.2～2.0%; Mg :≤0.02%; Graphite :≤0.2%, all the other are Fe and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243407.7A CN104148395B (en) | 2014-06-03 | 2014-06-03 | A kind of ironworks processed SPHC steekle mill high-speed steel working roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243407.7A CN104148395B (en) | 2014-06-03 | 2014-06-03 | A kind of ironworks processed SPHC steekle mill high-speed steel working roll |
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| Publication Number | Publication Date |
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| CN104148395A true CN104148395A (en) | 2014-11-19 |
| CN104148395B CN104148395B (en) | 2016-07-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454723A (en) * | 2003-05-29 | 2003-11-12 | 安泰科技股份有限公司 | Composite roll ring of high-speed steel |
| JP2004148321A (en) * | 2002-10-28 | 2004-05-27 | Nippon Steel Corp | Composite roll for hot rolling, method for manufacturing it and hot rolling method using the same |
| JP2005169460A (en) * | 2003-12-11 | 2005-06-30 | Nippon Steel Corp | Compound sleeved roll for hot finish rolling |
| CN1846887A (en) * | 2006-04-30 | 2006-10-18 | 郑州航空工业管理学院 | Compound high speed steel roll and its making process |
| CN103805900A (en) * | 2012-11-08 | 2014-05-21 | 无锡新三洲特钢有限公司 | Outer layer high speed steel for hot rolling composite work rollers |
-
2014
- 2014-06-03 CN CN201410243407.7A patent/CN104148395B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004148321A (en) * | 2002-10-28 | 2004-05-27 | Nippon Steel Corp | Composite roll for hot rolling, method for manufacturing it and hot rolling method using the same |
| CN1454723A (en) * | 2003-05-29 | 2003-11-12 | 安泰科技股份有限公司 | Composite roll ring of high-speed steel |
| JP2005169460A (en) * | 2003-12-11 | 2005-06-30 | Nippon Steel Corp | Compound sleeved roll for hot finish rolling |
| CN1846887A (en) * | 2006-04-30 | 2006-10-18 | 郑州航空工业管理学院 | Compound high speed steel roll and its making process |
| CN103805900A (en) * | 2012-11-08 | 2014-05-21 | 无锡新三洲特钢有限公司 | Outer layer high speed steel for hot rolling composite work rollers |
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| Publication number | Publication date |
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| CN104148395B (en) | 2016-07-06 |
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Effective date of registration: 20231127 Address after: Room 1102, Main Building, Guangdong International Building, No. 339 Huanshi East Road, Yuexiu District, Guangzhou, Guangdong Province, 510000 Patentee after: Guangzhou Representative Office of Korea Kailede Trading Co.,Ltd. Patentee after: Jin Renzhi Address before: 1102, Main Building, Guangdong International Building, No. 339 Huanshi East Road, Guangzhou, Guangdong Province, 510000 Patentee before: Jin Renzhi |
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