CN104148395B - A kind of ironworks processed SPHC steekle mill high-speed steel working roll - Google Patents
A kind of ironworks processed SPHC steekle mill high-speed steel working roll Download PDFInfo
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- CN104148395B CN104148395B CN201410243407.7A CN201410243407A CN104148395B CN 104148395 B CN104148395 B CN 104148395B CN 201410243407 A CN201410243407 A CN 201410243407A CN 104148395 B CN104148395 B CN 104148395B
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- speed steel
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- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 53
- 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
- 238000004458 analytical method Methods 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
- 239000000203 mixture Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 5
- 230000001684 chronic effect Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 9
- 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
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 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
Abstract
The invention discloses a kind of ironworks processed SPHC steekle mill high-speed steel working roll.Its outer layer chemical analysis, is calculated as 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.The high-speed steel working roll of the present invention, its outer layer chemical composition there occurs change, so that ironworks processed SPHC steekle mill high-speed steel working roll is higher than ICDP hardness, anti-impact force is similar with ICDP, the thickness of product being rolled thinner, product occurs the phenomenon skidded to reduce.The words of the ironworks processed SPHC steekle mill high-speed steel working roll of the steekle mill precision rolling working roll present invention, roll wear amount is little, the product surface precision produced is fine, roll uses chronic online, extend roll changing time, decrease roll change number of times, be greatly improved the productivity and production efficiency.
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 produces thin plate; the working roll of finishing stand mainly uses high ferrochrome roll or ICDP roll, and it is low that their shortcoming is because roller surface abrasion-resistance, it is necessary to often roll change; and the stock removal on the top layer that works is many, and body surface is coarse.
Time steekle mill precision rolling working roll uses high ferrochrome or ICDP roll, body surface is coarse, and not wear-resisting, and abrasion are big.And with the high-speed steel roll that existing high-speed steel technology produces, owing to product is relatively larger to the impulsive force of roll, and high-speed steel roll hardness is significantly high, causes being easy to crack, and eventually causes spalling of rolls.
In order to solve these problems, it is necessary to consider that exploitation high-speed steel product substitutes them.
Summary of the invention:
It is an object of the invention to provide a kind of higher than ICDP hardness, anti-impact force is similar with ICDP, the thickness of product can be rolled thinner, and the ironworks processed SPHC steekle mill high-speed steel working roll that the phenomenon skidded reduces occurs product.
The ironworks processed SPHC steekle mill high-speed steel working roll of the present invention, it is characterised in that its outer layer chemical analysis, is calculated as 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.
The ironworks processed SPHC steekle mill high-speed steel working roll of the present invention, its preparation method is: carry out dispensing, smelting, refine according to component and the content of above-mentioned ironworks processed SPHC steekle mill high-speed steel working roll, 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, grinding machine, polishing, finished product, inspection, packaging and warehouse-in.Namely the ironworks processed SPHC steekle mill high-speed steel working roll of the present invention is essentially identical with the preparation technology of conventional ICDP roll, simply has following 3 differences:
1, they are different from the chemical composition that the outer layer of conventional ICDP roll uses for ironworks processed SPHC steekle mill high-speed steel working roll, and the chemical composition of the outer layer use of ironworks processed SPHC steekle mill high-speed steel working roll is described above.
2, ironworks processed SPHC steekle mill high-speed steel working roll is different from the cool time of conventional ICDP roll, ICDP roll cool time: 2～3 weeks, and the cool time of ironworks processed SPHC steekle mill high-speed steel working roll: 4～5 weeks, the prolongation of cool time, the fatigue phenomenon of high-speed steel roll improves, and also has and improves elongation percentage.
3, the casting time of ironworks processed SPHC steekle mill high-speed steel working roll is longer than conventional ICDP roll:
The skin of the roll casting time: ICDP roll: 3～7 minutes, and the ironworks processed SPHC steekle mill high-speed steel working roll of the present invention: 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.
The ironworks processed SPHC steekle mill high-speed steel working roll of the present invention, its outer layer chemical composition there occurs change, so that ironworks processed SPHC steekle mill high-speed steel working roll is higher than ICDP hardness, anti-impact force is similar with ICDP, the thickness of product being rolled thinner, product occurs the phenomenon skidded to reduce.The words of the ironworks processed SPHC steekle mill high-speed steel working roll of the steekle mill precision rolling working roll present invention, roll wear amount is little, the product surface precision produced is fine, roll uses chronic online, extend roll changing time, decrease roll change number of times, be greatly improved the productivity and production efficiency.
Detailed description of the invention:
Following example are further illustrating the present invention, rather than limitation of the present invention.
Embodiment 1:
The ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment, its outer layer chemical analysis, it is calculated as 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.
Carry out dispensing, smelting, refine according to the component of ironworks processed SPHC steekle mill high-speed steel working roll and the content of the present embodiment, 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, grinding machine, polishing, finished product, inspection, packaging and warehouse-in, namely obtain the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment.
Namely the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment is essentially identical with the preparation technology of conventional ICDP roll, simply has following 3 differences:
1, they are different from the chemical composition that the outer layer of conventional ICDP roll uses for ironworks processed SPHC steekle mill high-speed steel working roll, and the chemical composition of the outer layer use of ironworks processed SPHC steekle mill high-speed steel working roll is as described in the embodiment.
2, they are different from the cool time of conventional ICDP roll for ironworks processed SPHC steekle mill high-speed steel working roll, ICDP roll cool time: 2 weeks, and the cool time of ironworks processed SPHC steekle mill high-speed steel working roll: 4 weeks.
3, the casting time of ironworks processed SPHC steekle mill high-speed steel working roll is longer than conventional ICDP 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 prepared, its hardness is HS80-90, and higher than the hardness of ICDP roll, its anti-impact force is similar with ICDP roll.After using it for steekle mill precision rolling working roll, roll wear amount is little, and the product surface precision of production is fine, roll uses the time to reach 1-2 hour/time online, thus extending roll changing time, decreasing roll change number of times, being greatly improved the productivity and production efficiency.
Embodiment 2:
The ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment, its outer layer chemical analysis, it is calculated as 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.
Carry out dispensing, smelting, refine according to the component of ironworks processed SPHC steekle mill high-speed steel working roll and the content of the present embodiment, 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, grinding machine, polishing, finished product, inspection, packaging and warehouse-in, namely obtain the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment.
Namely the ironworks processed SPHC steekle mill high-speed steel working roll of the present embodiment is essentially identical with the preparation technology of conventional ICDP roll, simply has following 3 differences:
1, they are different from the chemical composition that the outer layer of conventional ICDP roll uses for ironworks processed SPHC steekle mill high-speed steel working roll, and the chemical composition of the outer layer use of ironworks processed SPHC steekle mill high-speed steel working roll is as described in the embodiment.
2, they are different from the cool time of conventional ICDP roll for ironworks processed SPHC steekle mill high-speed steel working roll, ICDP roll cool time: 3 weeks, and the cool time of ironworks processed SPHC steekle mill high-speed steel working roll: 5 weeks, the prolongation of cool time, the fatigue phenomenon of high-speed steel roll improves, and also has and improves elongation percentage.
3, the casting time of ironworks processed SPHC steekle mill high-speed steel working roll is longer than conventional ICDP 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 prepared, its hardness is HS80-90, and higher than the hardness of ICDP roll, its anti-impact force is similar with ICDP roll.After using it for steekle mill precision rolling working roll, roll wear amount is little, and the product surface precision of production is fine, roll uses the time to reach 1-2 hour/time online, thus extending roll changing time, decreasing roll change number of times, being greatly improved the productivity and production efficiency.
Claims (1)
1. an ironworks processed SPHC steekle mill high-speed steel working roll, it is characterised in that its outer layer chemical analysis, is calculated as 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.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN104148395A CN104148395A (en) | 2014-11-19 |
| CN104148395B true CN104148395B (en) | 2016-07-06 |
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Citations (3)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3743793B2 (en) * | 2002-10-28 | 2006-02-08 | 日鉄ハイパーメタル株式会社 | Composite roll for hot rolling, method for producing the same, 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 |
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2014
- 2014-06-03 CN CN201410243407.7A patent/CN104148395B/en active Active
Patent Citations (3)
| 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 |
| 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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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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