CN1318438A - Cold rolling process of ferrite and martensitic stainless steel belt - Google Patents
Cold rolling process of ferrite and martensitic stainless steel belt Download PDFInfo
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- CN1318438A CN1318438A CN 01113085 CN01113085A CN1318438A CN 1318438 A CN1318438 A CN 1318438A CN 01113085 CN01113085 CN 01113085 CN 01113085 A CN01113085 A CN 01113085A CN 1318438 A CN1318438 A CN 1318438A
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Abstract
The cold rolling process uses roughness-increased roll which includes crude rolls for front rolling steps as fine rolls for last two rolling steps. The first rolling step has tension controlled in 15 KG/sq mm and the later rolling steps have decremental draft with the last two rolling steps having draft controlled in 8-15 %. The said process has high surface defect eliminating capacity, low cost, high rolling speed and high product quality.
Description
The present invention relates to a kind of rolling processing method of stainless steel band, particularly a kind of use multiple roll reversing cold mill is rolled the stainless steel band of ferrite (SUS430), martensite (SUS420J2) steel grade, and producing surface grade is 2B, 2D, HL, NO
3, NO
4Ferrite, the cold rolling processing of martensitic stainless steel belt.
Traditional ferrite, martensitic stainless steel belt processing, though it is cold rolling also to adopt the multiple roll reversing cold mill to carry out, but each manufacturer is for improving output, reduce rolling pass, therefore improve the reduction ratio of each passage as far as possible, and the reduction ratio of previous three passes is decided to be 23-26%, 18-20%, 17-19% respectively, each percentage pass reduction successively decreases gradually later on.In order to impel the stainless steel band strip plastic deformation and to prevent sideslip in the operation of rolling, when rolling, adopt again try one's best big before, backward pull, be different from other stainless steel band kind because of these two kinds of stainless steel band kind materials simultaneously, its resistance of deformation is low when annealing, and when first passage is rolling, just adopt the working roll of little roughness 0.1-0.2 μ, cause the coefficient of friction in strip plastic deformation district little, and heavy reduction rate 23-26%, to cause strip plastic deformation district nip angle big, use has the forward pull 8-12 ton than the hightension difference, backward pull 40-50 ton easily causes roll-force and front and back tension force disequilibrium again.
Because the use of these traditional machined parameters, just being easy to generate band steel and working roll when the 1st passage is rolling skids, cause various broken belts, strand people accident, in addition because the working roll roughness is little, and reduction ratio is big, rupture of oil film between band steel and working roll easily takes place, cause that the band steel directly contacts with working roll, belt steel surface fineness is destroyed, damaged simultaneously the surface of roll again, on the other hand, often last several percentage pass reductions are set in more than 15%, make anisotropy of material can not get effective control for improving the output traditional parameters, especially work as the user and select the ferrite that is processed into by traditional machined parameters for use, martensitic stainless steel belt is made material, be used for making and need through deep-draw, when the stretch process operation just can be made product, just expose at once, reflect, in the deformed area of product drawback easy to crack, thereby the material that uses traditional parameters to be processed into, just can't guarantee to need to use the quality of specific process converted products, have certain limitation, not reach user's requirement.By this machined parameters processing, it yields poorly, the production cost height simultaneously.In sum, the concrete parameter that traditional cold rolling processing is used has existed fatal defective.
The object of the present invention is to provide the cold rolling processing of a kind of ferrite, martensitic stainless steel belt, can increase substantially the ability of eliminating steel strip surface defect in the operation of rolling, anisotropy of material is effectively controlled, can improve mill speed and output, can guarantee the quality of its making product again, reduce cost simultaneously.
The present invention is achieved in that the cold rolling processing of ferrite, martensitic stainless steel belt, machined parameters:
A. use the multiple roll reversing cold mill to carry out the reversible rolling of 3 and 3 above passages, increase the roughness of working roll, and be divided into two kinds of working rolls, roughness Ra is the planishing roll of 0.1-0.2 μ, is used for the rolling of a last 1-2 passage; Roughness Ra is the shaping roll of 0.3-0.5 μ, is used for the rolling of all the other passages;
The reduction ratio of b. preceding 3 passages adopts 20-22%, 20-22%, 18-20% respectively, and each percentage pass reduction successively decreases later on, and makes last 1-2 passage be controlled at 15-8%;
C. control the forward and backward tension force of the 1st passage, make unit tension be not more than 15 kilograms/millimeter
2, forward and backward Tension Difference is controlled at below 20 tons.
Below embodiments of the invention are further described:
As: rolling SUS430 stainless steel band, with 1250 millimeters of width, thickness is the machined parameters that 3 millimeters steel band is rolled into 1 millimeter thin steel band:
A. use the multiple roll reversing cold mill to carry out the reversible rolling of 6 passages, increase the roughness of working roll, and be divided into two kinds of working rolls, roughness Ra is the planishing roll of 0.15 μ, be used for the rolling of 5-6 passage, the shaping roll that the big Ra of roughness is 0.4 μ is used for the rolling of 1-4 passage;
B.1-3 the reduction ratio of passage adopts 20.5%, 20.5%, 18.6% respectively, each percentage pass reduction successively decreases later on, the 5-6 passage is controlled at 13.4%, 12.7%, and the 1st percentage pass reduction that is about to original tradition processing reduces, and increases the reduction ratio of original the 2nd, 3 passages;
C. control the forward and backward tension force of the 1st passage, unit tension is 2.2 kilograms/millimeter before making
2, 9.2 kilograms/millimeter of back unit tensions
2, forward pull is that 8 tons, backward pull are 27.5 tons;
D. under the situation that equipment allows, the 1-4 passage adopts the working roll in 100 millimeters in big roller footpath, and the 5-6 passage adopts 90 millimeters big roller footpath working roll, is used to increase the deformed area area; (12 roller CR milling trains adopt the 90-120 millimeter, and gloomy outstanding Mil's milling train adopts 63.5-73.5 millimeter roller footpath).
E. adopt the straight mineral oil that contains additive to make cooling lubricant, strengthen film strength, additive is 10% lipid.
The present invention is compared with prior art: because the roughness of several main passage working rolls before having improved increases The coefficient of friction that has added the strip plastic deformation district improves a lot the ability of eliminating blemish when rolling, makes Some former must grindings and eliminate the coil of strip that blemish later on could be rolling through the reconditioning unit can directly rolled Machine is rolling also to reach same effect, saved the reconditioning cost, and rolling rear belt steel surface roughness does not have yet Be significantly increased. Former converted products surface roughness Ra is between 0.1-0.2 μ, and new converted products surface is thick Rugosity Ra remains between 0.14-0.2 μ. Improve the roughness of working roll, also the corresponding mill speed that makes improves, Output is corresponding improve also, even reach 800 meters/timesharing in mill speed simultaneously, oil film also is unlikely to break. Can reduce stock removal because gloss level of roll improves, grinding time, minimizing roller consumption improve grinding machine efficient. Transfer The whole reduction ratio of each passage has reduced the 1st percentage pass reduction, has strengthened the reduction ratio of the 2nd, 3 passages, Thereby rolling total passage is not increased, do not affect again output, and the anisotropy energy of material is effectively controlled System. Because having controlled forward and backward tension force, make skidding controlled again, broken belt, strand enter accident rate and descend 15%, corresponding minimizing of downtime, plate shape also is improved.
The rolling table of comparisons of finished product
| 1250 millimeters of strip widths | Raw material/finished product | Raw material/finished product | Raw material/finished product | Raw material/finished product |
| 3.0/1.0 millimeter | 3.0/0.8 millimeter | 5.0/2.0 millimeter | 1.5/0.5 millimeter | |
| Tradition output (ton/hour) | 14.50 | 11.34 | 18.27 | 9.15 |
| Output of the present invention (ton/hour) | 15.19 | 12.01 | 18.82 | 10.08 |
| Increase rate | 4.76％ | 5.91％ | 3.01％ | 10.2％ |
Claims (4)
1. the cold rolling processing of a ferrite, martensitic stainless steel belt, it is characterized in that machined parameters: a. uses the multiple roll reversing cold mill to carry out the reversible rolling of 3 and 3 above passages, increase the roughness of working roll, and be divided into two kinds of working rolls, roughness Ra is the planishing roll of 0.1-0.2 μ, is used for the rolling of a last 1-2 passage; Roughness Ra is the shaping roll of 0.3-0.5 μ, is used for the rolling of all the other passages;
The reduction ratio of b. preceding 3 passages adopts 20-22%, 20-22%, 18-20% respectively, and each percentage pass reduction successively decreases later on, and makes last 1-2 passage be controlled at 15-8%;
C. control the forward and backward tension force of the 1st passage, make unit tension be not more than 15 kilograms/millimeter
2, forward and backward Tension Difference is controlled at below 20 tons.
2. cold rolling processing according to claim 1 is characterized in that the working roll in the big roller footpath of 90 millimeters of back 2 passages employings, and all the other passages adopt 100 millimeters big roller footpath working roll.
3. cold rolling processing according to claim 1 is characterized in that working roll adopts the straight mineral oil that contains additive to make cooling lubricant, and additive is 10% lipid.
4. cold rolling processing according to claim 1 is characterized in that a. carries out the rolling of 6 passages, and roughness Ra is that the planishing roll of 0.15 μ is used for the rolling of 5-6 passage, and roughness Ra is that the shaping roll of 0.4 μ is used for the rolling of 1-4 passage; B.1-3 the reduction ratio of passage adopts 20.5%, 20.5%, 18.6% respectively, and each percentage pass reduction successively decreases later on, and the 5-6 passage is controlled at 13.4%, 12.7%; C. control the forward and backward tension force of the 1st passage, unit tension is 2.2 kilograms/millimeter before making
2, 9.2 kilograms/millimeter of back unit tensions
2, forward pull is that 8 tons, backward pull are 27.5 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113085 CN1318438A (en) | 2001-06-05 | 2001-06-05 | Cold rolling process of ferrite and martensitic stainless steel belt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113085 CN1318438A (en) | 2001-06-05 | 2001-06-05 | Cold rolling process of ferrite and martensitic stainless steel belt |
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| CN1318438A true CN1318438A (en) | 2001-10-24 |
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| CN 01113085 Pending CN1318438A (en) | 2001-06-05 | 2001-06-05 | Cold rolling process of ferrite and martensitic stainless steel belt |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302129C (en) * | 2004-06-11 | 2007-02-28 | 宝钢集团上海五钢有限公司 | Rolling and cogging method for OCr17Ni4Cu4Nb casting ingots |
| CN100408711C (en) * | 2002-06-25 | 2008-08-06 | 杰富意钢铁株式会社 | High-strength cold rolled steel sheet and process for producing the same |
| CN102107210A (en) * | 2010-12-13 | 2011-06-29 | 无锡嘉联不锈钢有限公司 | Method for producing stainless steel band of heating pipe |
| CN102228902A (en) * | 2011-04-25 | 2011-11-02 | 无锡嘉联不锈钢有限公司 | Cold-rolling process of ultrathin stainless steel band |
| WO2012068828A1 (en) * | 2010-11-26 | 2012-05-31 | 宝山钢铁股份有限公司 | Cold rolling method for preventing high silicon strip steel from breaking |
| CN102534157A (en) * | 2010-12-17 | 2012-07-04 | 鞍钢股份有限公司 | Hot rolling method for high-efficiency and high-grade electrical steel product |
| CN102989771A (en) * | 2011-09-19 | 2013-03-27 | 宝山钢铁股份有限公司 | Low-chromium ferritic stainless steel cold continuous rolling manufacturing method |
| CN103100562A (en) * | 2011-11-09 | 2013-05-15 | 宁波宝新不锈钢有限公司 | Method of machining special passivated stainless steel surface |
| CN103372567A (en) * | 2012-04-26 | 2013-10-30 | 宝山钢铁股份有限公司 | Method for producing ferritic stainless steel bands with roughened surfaces through cold continuous rolling |
| CN105073288A (en) * | 2013-04-01 | 2015-11-18 | 日立金属株式会社 | Method for manufacturing martensitic stainless steel for blades |
| CN105087887A (en) * | 2015-08-14 | 2015-11-25 | 山西太钢不锈钢股份有限公司 | Manufacturing method of 430 type medium-chromium and medium-carbon ferrite stainless steel bottom-line-free cold plate |
| CN105132819A (en) * | 2015-08-13 | 2015-12-09 | 山西太钢不锈钢股份有限公司 | Continuous rolling method of low-chromium ferrite stainless steel |
| CN105327947A (en) * | 2015-11-11 | 2016-02-17 | 张家港浦项不锈钢有限公司 | Method for preventing steel band from sliding in reversible cold rolling process of 400-series steel plate |
| CN105414179A (en) * | 2015-12-09 | 2016-03-23 | 安徽工业大学 | Cold rolling method for improving structure properties of ferritic stainless steel plate strips and analysis method thereof |
| CN105855291A (en) * | 2016-05-25 | 2016-08-17 | 东北大学 | Method for controlling surface micro-pit defect of stainless steel sheet and strip during cold-tandem rolling process |
| CN107030110A (en) * | 2017-04-20 | 2017-08-11 | 张家港浦项不锈钢有限公司 | A kind of cold rolling process of thin stainless steel band |
| CN109420679A (en) * | 2017-08-21 | 2019-03-05 | 杰富意钢铁株式会社 | The manufacturing method and manufacturing equipment of ferrite-group stainless steel cold-rolled strip and the cold-rolling mill of ferrite-group stainless steel steel band |
| CN112676500A (en) * | 2020-12-02 | 2021-04-20 | 惠州市普盈金属科技有限公司 | Watchband forming process |
| CN114985449A (en) * | 2022-05-26 | 2022-09-02 | 首钢京唐钢铁联合有限责任公司 | Steel strip cold rolling method |
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2001
- 2001-06-05 CN CN 01113085 patent/CN1318438A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100408711C (en) * | 2002-06-25 | 2008-08-06 | 杰富意钢铁株式会社 | High-strength cold rolled steel sheet and process for producing the same |
| CN1302129C (en) * | 2004-06-11 | 2007-02-28 | 宝钢集团上海五钢有限公司 | Rolling and cogging method for OCr17Ni4Cu4Nb casting ingots |
| WO2012068828A1 (en) * | 2010-11-26 | 2012-05-31 | 宝山钢铁股份有限公司 | Cold rolling method for preventing high silicon strip steel from breaking |
| US9056343B2 (en) | 2010-11-26 | 2015-06-16 | Baoshan Iron & Steel Co., Ltd. | Cold-rolling method for preventing fracture of high-silicon strip steel |
| CN102107210A (en) * | 2010-12-13 | 2011-06-29 | 无锡嘉联不锈钢有限公司 | Method for producing stainless steel band of heating pipe |
| CN102534157A (en) * | 2010-12-17 | 2012-07-04 | 鞍钢股份有限公司 | Hot rolling method for high-efficiency and high-grade electrical steel product |
| CN102228902A (en) * | 2011-04-25 | 2011-11-02 | 无锡嘉联不锈钢有限公司 | Cold-rolling process of ultrathin stainless steel band |
| CN102989771B (en) * | 2011-09-19 | 2015-07-29 | 宝山钢铁股份有限公司 | Low chrome ferritic stainless steel cold continuous rolling manufacture method |
| CN102989771A (en) * | 2011-09-19 | 2013-03-27 | 宝山钢铁股份有限公司 | Low-chromium ferritic stainless steel cold continuous rolling manufacturing method |
| CN103100562A (en) * | 2011-11-09 | 2013-05-15 | 宁波宝新不锈钢有限公司 | Method of machining special passivated stainless steel surface |
| CN103100562B (en) * | 2011-11-09 | 2015-04-01 | 宁波宝新不锈钢有限公司 | Method of machining special passivated stainless steel surface |
| CN103372567A (en) * | 2012-04-26 | 2013-10-30 | 宝山钢铁股份有限公司 | Method for producing ferritic stainless steel bands with roughened surfaces through cold continuous rolling |
| CN103372567B (en) * | 2012-04-26 | 2015-08-19 | 宝山钢铁股份有限公司 | A kind of method of cold continuous rolling production texturing surface ferrite stainless steel band |
| CN105073288A (en) * | 2013-04-01 | 2015-11-18 | 日立金属株式会社 | Method for manufacturing martensitic stainless steel for blades |
| CN105073288B (en) * | 2013-04-01 | 2016-11-23 | 日立金属株式会社 | The manufacture method of cutter martensitic stainless steel |
| US9687893B2 (en) | 2013-04-01 | 2017-06-27 | Hitachi Metals, Ltd. | Manufacturing method of martensite-based stainless steel for edged tools |
| CN105132819A (en) * | 2015-08-13 | 2015-12-09 | 山西太钢不锈钢股份有限公司 | Continuous rolling method of low-chromium ferrite stainless steel |
| CN105132819B (en) * | 2015-08-13 | 2016-11-30 | 山西太钢不锈钢股份有限公司 | A kind of method of low chrome ferritic stainless steel continuous rolling |
| CN105087887A (en) * | 2015-08-14 | 2015-11-25 | 山西太钢不锈钢股份有限公司 | Manufacturing method of 430 type medium-chromium and medium-carbon ferrite stainless steel bottom-line-free cold plate |
| CN105087887B (en) * | 2015-08-14 | 2017-04-05 | 山西太钢不锈钢股份有限公司 | Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types |
| CN105327947A (en) * | 2015-11-11 | 2016-02-17 | 张家港浦项不锈钢有限公司 | Method for preventing steel band from sliding in reversible cold rolling process of 400-series steel plate |
| CN105414179A (en) * | 2015-12-09 | 2016-03-23 | 安徽工业大学 | Cold rolling method for improving structure properties of ferritic stainless steel plate strips and analysis method thereof |
| CN105414179B (en) * | 2015-12-09 | 2017-06-16 | 安徽工业大学 | Improve cold rolling process of the ferrite stainless steel with structure property and its analysis method |
| CN105855291A (en) * | 2016-05-25 | 2016-08-17 | 东北大学 | Method for controlling surface micro-pit defect of stainless steel sheet and strip during cold-tandem rolling process |
| CN107030110A (en) * | 2017-04-20 | 2017-08-11 | 张家港浦项不锈钢有限公司 | A kind of cold rolling process of thin stainless steel band |
| CN107030110B (en) * | 2017-04-20 | 2019-05-07 | 浦项(张家港)不锈钢股份有限公司 | A kind of cold rolling process of thin stainless steel band |
| CN109420679A (en) * | 2017-08-21 | 2019-03-05 | 杰富意钢铁株式会社 | The manufacturing method and manufacturing equipment of ferrite-group stainless steel cold-rolled strip and the cold-rolling mill of ferrite-group stainless steel steel band |
| CN112676500A (en) * | 2020-12-02 | 2021-04-20 | 惠州市普盈金属科技有限公司 | Watchband forming process |
| CN114985449A (en) * | 2022-05-26 | 2022-09-02 | 首钢京唐钢铁联合有限责任公司 | Steel strip cold rolling method |
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