CN113070340B - 一种冷轧超光面带钢生产工艺 - Google Patents
一种冷轧超光面带钢生产工艺 Download PDFInfo
- Publication number
- CN113070340B CN113070340B CN202110279440.5A CN202110279440A CN113070340B CN 113070340 B CN113070340 B CN 113070340B CN 202110279440 A CN202110279440 A CN 202110279440A CN 113070340 B CN113070340 B CN 113070340B
- Authority
- CN
- China
- Prior art keywords
- strip steel
- rolling
- super
- leveling
- roughness
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000000137 annealing Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/021—Rolls for sheets or strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/14—Roughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/10—Roughness of roll surface
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geometry (AREA)
- Metal Rolling (AREA)
Abstract
本发明涉及一种冷轧超光面带钢生产工艺,该生产工艺的生产路径依次为:轧制、清洗、罩式退火、平整、重卷;所述轧制工序中,末机架工作辊的粗糙度为0.15μm~0.6μm;所述平整工序中,平整机组工作辊的粗糙度0.02μm~0.35μm,以实现最终冷轧超光面带钢的粗糙度为0.10μm~0.40μm。优点是:稳定了超光面板生产,提高了钢板表面质量,使超光面板的表面粗糙度达到Ra<0.4μm,超光面板成材率达到92.10%。
Description
技术领域
本发明属于冷轧板带生产领域,尤其涉及一种粗糙度Ra<0.4μm的冷轧超光面带钢生产工艺。
背景技术
近年来,随着超光面板用量逐步增加,用户对钢板表面质量的要求也随之提升,同时对钢板表面Ra的精准控制提出了新要求。但是冷轧各工序生产超光面板时存在各种问题,轧机工序生产时出现厚度不合现象,出口板形辊频繁掉电,致使机组停机,打滑机组无法升速;罩退工序出现粘结缺陷,板面清洁度低;平整工序出现打滑擦伤,生产的钢板粗糙度合标不合用等等,这些对钢板表面质量有较大影响,影响合同交付的同时也降低了用户满意度。
发明内容
为克服现有技术的不足,本发明的目的是提供一种冷轧超光面带钢生产工艺,稳定超光面板生产,提高表面质量控制,提升Ra精准控制,降低生产超光面板时不合格率,使超光面板的表面粗糙度达到Ra<0.4μm。
为实现上述目的,本发明通过以下技术方案实现:
一种冷轧超光面带钢生产工艺,该生产工艺的生产路径依次为:轧制、清洗、罩式退火、平整、重卷;所述轧制工序中,末机架工作辊的粗糙度为0.15μm~0.6μm;所述平整工序中,平整机组工作辊的粗糙度0.02μm~0.35μm,以实现最终冷轧超光面带钢的粗糙度为0.10μm~0.40μm。
所述轧制工序中,前4个机架完成变形过程,第5机架作为平整机使用;末架轧制力为5~10MN,同时4-5架间单位张力为130~160N/mm2,单位卷取张力为35~60N/mm2;轧机板形按照平直或微边浪控制,工作辊、中间辊弯辊两者的弯曲力按照0.8~1.5倍匹配的小弯辊弯曲力控制;1-4机架乳化液系统的乳化液体积浓度控制在1.5%~2.5%。
所述罩式退火工序中,每炉装两卷带钢,放在罩式炉的最上两层;吹氢流量>15m3/h吹氢;自由升温至300℃~320℃,继续加热,300℃~500℃加热4h~7h,500℃~670℃加热3h~6h,然后保温3h~6h,670℃~630℃缓慢冷却2h~5h,630℃~610℃带罩冷却2h~4h,带罩冷却结束后扣冷却罩风冷,350℃~450℃开始喷水冷却,出炉温度<90℃。
所述平整工序中,湿平整延伸率闭环控制,延伸率为1.0%~2.0%;平整工作辊凸度0.03mm~0.08mm;入口张力按照30~40kN设定,出口张力按照45~60kN设定;平整开卷速度控制在>300m/min。
与现有技术相比,本发明的有益效果是:
本发明方法稳定了超光面板生产,提高了钢板表面质量,使超光面板的表面粗糙度达到Ra<0.4μm,超光面板成材率达到93%以上。
具体实施方式
下面对本发明进行详细地描述,但是应该指出本发明的实施不限于以下的实施方式。
实施例1
一种冷轧超光面带钢生产工艺,该冷轧超光面带钢的粗糙度为0.10μm~0.40μm,具体生产路径:轧制-清洗-罩退-平整-重卷,具体的包括:
轧制工序中,末机架工作辊的粗糙度为0.15μm~0.6μm,才能确保平整后Ra达到标准要求;
平整工序中,平整机组工作辊的粗糙度0.02μm~0.35μm。
实施例2
在实施例1的基础上,在轧制工序中同时满足:前4个机架完成变形过程,第5机架作为平整机使用,从而获得较好板形,保证顺利轧制;末架轧制力为5~10MN,同时4-5架间单位张力为130~160N/mm2,单位卷取张力为35~60N/mm2;合理的负荷分配能更好保证板形,提高带钢纵向延伸,确保轧制厚度和板形控制。
实施例3
在实施例1的基础上,在轧制工序中同时满足:前4个机架完成变形过程,第5机架作为平整机使用,从而获得较好板形,保证顺利轧制;末架轧制力为5~8MN或6~10MN,同时4-5架间单位张力为140~150N/mm2或145~156N/mm2,单位卷取张力为45~55N/mm2或40~50N/mm2;合理的负荷分配能更好保证板形,提高带钢纵向延伸,确保轧制厚度和板形控制。
实施例4
实施例1、实施例2或实施例3的基础上,同时满足:
轧制工序中,轧机板形按照平直或微边浪控制,中浪板形在卷紧后,造成带钢层与层间接触面的贴合不完整,从而使径向压应力分布不均,局部径向压应力增大,而较大中浪造成的较大径向压应力促使了粘结的发生。故此,轧机板形曲线按照平直或微边浪设定。工作辊、中间辊弯辊两者的弯曲力按照0.8~1.5倍匹配的小弯辊弯曲力控制,避免出现中浪;1-4机架乳化液系统的乳化液体积浓度控制在1.5%~2.5%,防止或降低打滑几率,同时确保轧制润滑性。
实施例5
在实施例1-4任意一个实施例的基础上,满足:
罩式退火工序中,每炉装两卷带钢,放在罩式炉的最上两层;吹氢流量>15m3/h吹氢,使带钢表面清洁性更好,更光亮;自由升温至300℃~320℃,继续加热,300℃~500℃加热4h~7h,500℃~670℃加热3h~6h,然后保温3h~6h,670℃~630℃缓慢冷却2h~5h,630℃~610℃带罩冷却2h~4h,带罩冷却结束后扣冷却罩风冷,350℃~450℃开始喷水冷却,出炉温度<90℃。
实施例6
在实施例1-5任意一个实施例的基础上,同时满足:
平整工序中,平整机组工作辊的粗糙度0.02μm~0.35μm,上下辊的表面粗糙度可不同;湿平整延伸率闭环控制,采用恒定延伸率进行控制,尤其是较大的延伸率进行控制,可减少粘结缺陷的产生,因此延伸率为1.0%~2.0%。平整工作辊凸度0.03mm~0.08mm;入口张力按照30~40kN设定,出口张力按照45~60kN设定;平整开卷速度快,可使带钢强度迅速越过屈服区域,从而避免或减少粘结缺陷的产生,平整开卷速度按照>300m/min生产。
Claims (2)
1.一种冷轧超光面带钢生产工艺,其特征在于,该生产工艺的生产路径依次为:轧制、清洗、罩式退火、平整、重卷;所述轧制工序中,末机架工作辊的粗糙度为0.15μm~0.6μm;所述平整工序中,平整机组工作辊的粗糙度0.02μm~0.35μm,以实现最终冷轧超光面带钢的粗糙度为0.10μm~0.40μm;
所述轧制工序中,前4个机架完成变形过程,第5机架作为平整机使用;末架轧制力为5~10MN,同时4-5架间单位张力为130~160N/mm2,单位卷取张力为35~60N/mm2;轧机板形按照平直或微边浪控制,工作辊、中间辊弯辊两者的弯曲力按照0.8~1.5倍匹配的小弯辊弯曲力控制;1-4机架乳化液系统的乳化液体积浓度控制在1.5%~2.5%;
所述罩式退火工序中,每炉装两卷带钢,放在罩式炉的最上两层;吹氢流量>15m3/h吹氢;自由升温至300℃~320℃,继续加热,300℃~500℃加热4h~7h,500℃~670℃加热3h~6h,然后保温3h~6h,670℃~630℃缓慢冷却2h~5h,630℃~610℃带罩冷却2h~4h,带罩冷却结束后扣冷却罩风冷,350℃~450℃开始喷水冷却,出炉温度<90℃。
2.根据权利要求1所述的一种冷轧超光面带钢生产工艺,其特征在于,所述平整工序中,湿平整延伸率闭环控制,延伸率为1.0%~2.0%;平整工作辊凸度0.03mm~0.08mm;入口张力按照30~40kN设定,出口张力按照45~60kN设定;平整开卷速度控制在>300m/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110279440.5A CN113070340B (zh) | 2021-03-16 | 2021-03-16 | 一种冷轧超光面带钢生产工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110279440.5A CN113070340B (zh) | 2021-03-16 | 2021-03-16 | 一种冷轧超光面带钢生产工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113070340A CN113070340A (zh) | 2021-07-06 |
CN113070340B true CN113070340B (zh) | 2023-06-20 |
Family
ID=76612525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110279440.5A Active CN113070340B (zh) | 2021-03-16 | 2021-03-16 | 一种冷轧超光面带钢生产工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113070340B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113477741B (zh) * | 2021-07-14 | 2023-03-10 | 永鑫精密材料(无锡)有限公司 | 一种双光面低碳钢带的生产方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4990747B2 (ja) * | 2007-12-17 | 2012-08-01 | 新日本製鐵株式会社 | 調質圧延方法 |
CN102296231B (zh) * | 2010-06-25 | 2013-05-01 | 鞍钢股份有限公司 | 一种连续退火机组生产0.25-0.35mm超光冷轧板的方法 |
CN103878173B (zh) * | 2012-12-21 | 2016-03-02 | 鞍钢股份有限公司 | 一种消除冷轧板表面色差的生产方法 |
CN111334709B (zh) * | 2020-03-06 | 2020-12-29 | 湖南华菱涟源钢铁有限公司 | 一种冷轧双光板及其制造方法和应用 |
CN111974802B (zh) * | 2020-07-23 | 2022-03-01 | 柳州钢铁股份有限公司 | 冷连轧超低粗糙度高强钢光面板及其罩式退火生产方法 |
-
2021
- 2021-03-16 CN CN202110279440.5A patent/CN113070340B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN113070340A (zh) | 2021-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113198866B (zh) | 一种薄规格中高牌号无取向硅钢酸轧生产工艺 | |
CN112077152B (zh) | 商用车纵梁用高强钢的板形控制方法 | |
CN102921750B (zh) | 一种消除带钢表面亮带的方法 | |
CN110465561B (zh) | 一种热轧带钢矫平矫工艺 | |
CN113070340B (zh) | 一种冷轧超光面带钢生产工艺 | |
CN112275804B (zh) | 用于精密不锈带钢表面色差的控制方法 | |
CN112108527A (zh) | 热轧高强度搅拌罐罐体用钢的板形控制方法 | |
CN114433638A (zh) | 一种控制厚度规格≤50mm热轧钢板横向不平度的方法 | |
CN109622619A (zh) | 冷连轧生产高牌号无取向电工钢的方法及其制品 | |
CN109604336A (zh) | 一种热镀锌板的制备方法及装置 | |
CN109022736B (zh) | 一种无间隙原子钢连退薄板的冷轧工艺调控方法 | |
CN103100562B (zh) | 一种不锈钢特殊钝化表面的加工方法 | |
CN113621908A (zh) | 一种热镀金属钢带的制造工艺及方法 | |
CN102989768B (zh) | 一种有效降低冷轧钛带卷各向异性的加工方法 | |
CN109517958B (zh) | 一种电镀用热轧酸洗钢板mm390生产方法 | |
CN110093577A (zh) | 微米级基板破损导致镀锌缺陷的消除方法 | |
CN110385339B (zh) | 一种半工艺钢的平整方法 | |
CN113699325A (zh) | 一种薄规格冷轧hsla连退带钢的板形控制方法 | |
KR101356877B1 (ko) | 페라이트계 스테인리스강의 연연속 제조장치 및 이를 이용한 제조방법 | |
CN113059003B (zh) | 控制冷轧高强钢酸轧边裂的方法 | |
CN111590335A (zh) | 一种控制横折纹缺陷的平整酸洗产线 | |
CN111438194A (zh) | 一种控制低碳钢热轧酸洗板横折印的方法 | |
CN113787099B (zh) | 一种780MPa级高强度汽车板的酸洗冷轧方法 | |
CN108754381A (zh) | 一种钢带镀铝锌铬的连续生产方法 | |
CN114682646B (zh) | 一种先进高强钢平整卷取内径松动的控制方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |