CN107190205A - A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method - Google Patents

A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method Download PDF

Info

Publication number
CN107190205A
CN107190205A CN201710517398.XA CN201710517398A CN107190205A CN 107190205 A CN107190205 A CN 107190205A CN 201710517398 A CN201710517398 A CN 201710517398A CN 107190205 A CN107190205 A CN 107190205A
Authority
CN
China
Prior art keywords
cold
elongation
rolling
steel band
grain coarsening
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
Application number
CN201710517398.XA
Other languages
Chinese (zh)
Inventor
李建英
刘立学
姚勇创
王建兴
高华
彭素云
马光宗
孙璐
李经哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tangshan Iron and Steel Group Co Ltd
HBIS Co Ltd Tangshan Branch
Original Assignee
Tangshan Iron and Steel Group Co Ltd
HBIS Co Ltd Tangshan Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tangshan Iron and Steel Group Co Ltd, HBIS Co Ltd Tangshan Branch filed Critical Tangshan Iron and Steel Group Co Ltd
Priority to CN201710517398.XA priority Critical patent/CN107190205A/en
Publication of CN107190205A publication Critical patent/CN107190205A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C21D8/0226—Hot 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
    • C21D8/0221—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips

Abstract

The invention discloses a kind of grain coarsening, the cold-rolling galvanization steel band and its production method of high-elongation, the galvanized steel strip chemical composition composition and weight/mass percentage composition are：C：0.008~0.06%, Mn：0.07~0.12%, S≤0.012%, P≤0.012%, Si≤0.03%, Als：0.030~0.060%, N≤0.0040%, remaining is being mingled with Fe and allowed band.This galvanized steel strip, while coordinating appropriate cold-rolled compression ratio, is roughened the crystal grain of strip, obtains the cold-rolling galvanization steel band of high-elongation by controlling rational hot rolling coiling temperature.This galvanized steel strip has good machining deformation ability to a certain extent, while substantially reducing the annealing temperature of zinc-plated process, reduction consumption, while substantially reducing the annealing temperature of zinc-plated process, significantly reduces production difficulty and energy consumption.

Description

A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method
Technical field
The invention belongs to iron and steel smelting technology field, and in particular to a kind of grain coarsening, the cold-rolling galvanization steel of high-elongation Band and its production method.
Background technology
With the progress of steel and iron industry, household electrical appliances and other machinery manufacturing industry are also developed rapidly, as people are to product Formability and it is corrosion proof require more and more higher, the consumption of galvanizing production is increasing.Some processing industries are added due to it The characteristics of work is manufactured is very high for the elongation percentage requirement of galvanizing production.
The galvanizing production of current most of high-elongations is improved in zinc-plated process and moved back generally by Ultra-low carbon material is used Fiery temperature, increase annealing time etc. means realize that such production cost is high, and production efficiency is poor, energy resource consumption greatly, is unfavorable for ring Protect, while increasing production difficulty.Product price remains high, and is restricted the use of high-elongation galvanizing production.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its life Production method.
In order to solve the above technical problems, the present invention is adopted the technical scheme that：A kind of grain coarsening is provided, high-elongation Cold-rolling galvanization steel band, the galvanized steel strip chemical composition composition and weight/mass percentage composition are：C：0.008~0.06%, Mn：0.07 ~0.12%, S≤0.012%, P≤0.012%, Si≤0.03%, Als：0.030~0.060%, N≤0.0040%, remaining be Fe and Being mingled with allowed band.
Galvanized steel strip thickness of the present invention is 0.6~2.5mm.
The yield strength 180-220MPa of galvanized steel strip product of the present invention, tensile strength 290-360MPa, A80 >= 38.0%。
The present invention also provides a kind of grain coarsening, the production method of the cold-rolling galvanization steel band of high-elongation, methods described bag Include hot rolling, cold rolling, zinc-plated process；Strand（Steel billet）Chemical composition is constituted and weight/mass percentage composition is：C：0.008~0.06%, Mn：0.07~0.12%, S≤0.012%, P≤0.012%, Si≤0.03%, Als：0.030~0.060%, N≤0.0040%, its It is remaining for being mingled with Fe and allowed band.
Hot-rolled process of the present invention, hot rolling finishing temperature is 890-910 DEG C, and cooling is using leading portion cooling, coiling temperature For 710-730 DEG C.
Hot-rolled process of the present invention, hot-strip tensile strength 290-350MPa, yield strength 210-240MPa, extension Rate >=40.0%.
Cold rolling process of the present invention, cold-rolled compression ratio is 45-68%.
Zinc-plated process of the present invention, strip enters 450-470 DEG C of zinc pot temperature.
Zinc-plated process of the present invention, line speed is 85-130m/min, and the heating-up temperature of strip is 660-680 DEG C, 720-740 DEG C of the soaking temperature of strip.
Zinc-plated process of the present invention, the breaking elongation of finishing straightening is 0.7-1.8%.
Grain coarsening of the present invention, the cold-rolling galvanization steel band detection method of high-elongation refers to GB/T6394, GB/T228.1.
It is using the beneficial effect produced by above-mentioned technical proposal：1st, the present invention is by controlling rational hot rolling to crimp temperature Degree, while coordinating appropriate cold-rolled compression ratio, is roughened the crystal grain of strip, obtains the cold-rolling galvanization steel band of high-elongation. 2nd, galvanized steel strip produced by the invention has good machining deformation ability to a certain extent, can largely reduce acid and roll The roll-force of process, reduction consumption, while substantially reducing the annealing temperature of zinc-plated process, so that it is difficult to significantly reduce production Degree and energy consumption.3rd, the performance and surface quality for the high-elongation galvanizing production that the inventive method is produced are equal to conventional deep-draw level Galvanizing production, it is to avoid use higher level steel grade, production cost is greatly reduced, and strengthens the competitiveness of product in market, is enterprise Create considerable economic benefit.
Embodiment
With reference to specific embodiment, the present invention is further detailed explanation.
Embodiment 1
The present embodiment grain coarsening, the cold-rolling galvanization steel band chemical composition composition and its production method of high-elongation is as follows：
The present embodiment galvanized steel strip product and strand（Steel billet）Chemical composition composition and weight/mass percentage composition be：C：0.008%, Mn：0.12%, S：0.012%, P：0.012%, Si：0.015%, Als：0.030%, N：0.0040%, remaining is Fe and allowed band Interior is mingled with.
The present embodiment grain coarsening, the cold-rolling galvanization steel band production method of high-elongation includes hot rolling, cold rolling, galvanizer Sequence, is comprised the following steps that：
1）Hot-rolled process：910 DEG C of finishing temperature, cooling is using front end cooling, 730 DEG C of coiling temperature；Hot Rolling Strip specification For 2.75 × 1020mm, tensile strength 295MPa, yield strength 219MPa, elongation percentage 49.5%.
2）Cold rolling process：Cold rolling thickness is 1.3 × 1000mm, and compression ratio is 52.7%.
3）Zinc-plated process：Line speed is 100m/min, and the heating-up temperature of strip is 680 DEG C, the soaking temperature of strip 740℃；Strip enters 465 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 0.7%；Other parameters and the fortune of common galvanizing production Row parameter is identical.
The performance of the present embodiment cold-rolling galvanization strip product is：Yield strength 185MPa, tensile strength 296MPa, A80: 44.0%。
Embodiment 2
The present embodiment grain coarsening, the cold-rolling galvanization steel band chemical composition composition and its production method of high-elongation is as follows：
The present embodiment galvanized steel strip product and strand（Steel billet）Chemical composition composition and weight/mass percentage composition be：C：0.03%, Mn：0.12%, S：0.007%, P：0.012%, Si：0.03%, Als：0.046%, N：0.0035%, remaining is in Fe and allowed band Be mingled with.
The present embodiment grain coarsening, the cold-rolling galvanization steel band production method of high-elongation includes hot rolling, cold rolling, galvanizer Sequence, is comprised the following steps that：
1）Hot-rolled process：890 DEG C of finishing temperature, cooling is using front end cooling, 730 DEG C of coiling temperature；Hot Rolling Strip specification For 4.55 × 1270mm, tensile strength 335MPa, yield strength 227MPa, elongation percentage 47.5%.
2）Cold rolling process：Cold rolling thickness is 2.5 × 1250mm, and compression ratio is 45.0%.
3）Zinc-plated process：Line speed is 130m/min, and the heating-up temperature of strip is 660 DEG C, the soaking temperature of strip 720℃；Strip enters 450 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.8%；Other parameters and the fortune of common galvanizing production Row parameter is identical.
The performance of the present embodiment cold-rolling galvanization strip product is：Yield strength 197MPa, tensile strength 303MPa, A80: 42.5%。
Embodiment 3
The present embodiment grain coarsening, the cold-rolling galvanization steel band chemical composition composition and its production method of high-elongation is as follows：
The present embodiment galvanized steel strip product and strand（Steel billet）Chemical composition composition and weight/mass percentage composition be：C：0.06%, Mn：0.07%, S：0.007%, P：0.012%, Si：0.008%, Als：0.060%, N：0.0035%, remaining is Fe and allowed band Interior is mingled with.
The present embodiment grain coarsening, the cold-rolling galvanization steel band production method of high-elongation includes hot rolling, cold rolling, galvanizer Sequence, is comprised the following steps that：
1）Hot-rolled process：900 DEG C of finishing temperature, cooling is using front end cooling, 710 DEG C of coiling temperature；Hot Rolling Strip specification For 1.8 × 1270mm, tensile strength 344MPa, yield strength 231MPa, elongation percentage 41.5%.
2）Cold rolling process：Cold rolling thickness is 0.6 × 1250mm, and compression ratio is 68.0%.
3）Zinc-plated process：Line speed is 110m/min, and the heating-up temperature of strip is 670 DEG C, the soaking temperature of strip 730℃；Strip enters 470 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.0%；Other parameters and the fortune of common galvanizing production Row parameter is identical.
The performance of the present embodiment cold-rolling galvanization strip product is：Yield strength 218MPa, tensile strength 357MPa, A80: 43.5%。
Embodiment 4
The present embodiment grain coarsening, the cold-rolling galvanization steel band chemical composition composition and its production method of high-elongation is as follows：
The present embodiment galvanized steel strip product and strand（Steel billet）Chemical composition composition and weight/mass percentage composition be：C：0.009%, Mn：0.12%, S：0.007%, P：0.012%, Si：0.01%, Als：0.046%, N：0.0035%, remaining is in Fe and allowed band Be mingled with.
The present embodiment grain coarsening, the cold-rolling galvanization steel band production method of high-elongation includes hot rolling, cold rolling, galvanizer Sequence, is comprised the following steps that：
1）Hot-rolled process：910 DEG C of finishing temperature, cooling is using front end cooling, 710 DEG C of coiling temperature；Hot Rolling Strip specification For 4.5 × 1270mm, tensile strength 313MPa, yield strength 214MPa, elongation percentage 46.5%.
2）Cold rolling process：Cold rolling thickness is 2.0 × 1250mm, and compression ratio is 55.6%.
3）Zinc-plated process：Line speed is 85m/min, and the heating-up temperature of strip is 670 DEG C, the soaking temperature of strip 730℃；Strip enters 460 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.7 %；Other parameters and common galvanizing production Operational factor is identical.
The performance of the present embodiment cold-rolling galvanization strip product is：Yield strength 209MPa, tensile strength 324MPa, A80: 46.5%。
Above example is only used to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair It is bright to be described in detail, it will be understood by those within the art that：Still the present invention can be modified or be waited With replacement, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover the power in the present invention Among sharp claimed range.

Claims (10)

1. a kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation, it is characterised in that the galvanized steel strip chemical composition composition And weight/mass percentage composition is：C：0.008~0.06%, Mn：0.07~0.12%, S≤0.012%, P≤0.012%, Si≤0.03%, Als：0.030~0.060%, N≤0.0040%, remaining is being mingled with Fe and allowed band.
2. a kind of grain coarsening according to claim 1, the cold-rolling galvanization steel band of high-elongation, it is characterised in that described Galvanized steel strip thickness is 0.6~2.5mm.
3. a kind of grain coarsening according to claim 1, the cold-rolling galvanization steel band of high-elongation, it is characterised in that described The yield strength 180-220MPa of galvanized steel strip product, tensile strength 290-360MPa, A80 >=38.0%.
4. based on a kind of grain coarsening described in claim 1-3 any one, the production of the cold-rolling galvanization steel band of high-elongation Method, it is characterised in that methods described includes hot rolling, cold rolling, zinc-plated process；Chemical Composition in Cast Billet is constituted and weight/mass percentage composition For：C：0.008~0.06%, Mn：0.07~0.12%, S≤0.012%, P≤0.012%, Si≤0.03%, Als：0.030~ 0.060%, N≤0.0040%, remaining is being mingled with Fe and allowed band.
5. a kind of grain coarsening according to claim 4, the production method of the cold-rolling galvanization steel band of high-elongation, its feature It is, the hot-rolled process, hot rolling finishing temperature is 890-910 DEG C, cooling is using leading portion cooling, and coiling temperature is 710-730 ℃。
6. a kind of grain coarsening according to claim 4, the production method of the cold-rolling galvanization steel band of high-elongation, its feature It is, the hot-rolled process, hot-strip tensile strength 290-350MPa, yield strength 210-240MPa, elongation percentage >= 40.0%。
7. a kind of grain coarsening according to claim 4-6 any one, the production of the cold-rolling galvanization steel band of high-elongation Method, it is characterised in that the cold rolling process, cold-rolled compression ratio is 45-68%.
8. a kind of grain coarsening according to claim 4-6 any one, the production of the cold-rolling galvanization steel band of high-elongation Method, it is characterised in that the zinc-plated process, strip enters 450-470 DEG C of zinc pot temperature.
9. a kind of grain coarsening according to claim 4-6 any one, the production of the cold-rolling galvanization steel band of high-elongation Method, it is characterised in that the zinc-plated process, line speed is 85-130m/min, and the heating-up temperature of strip is 660-680 DEG C, 720-740 DEG C of the soaking temperature of strip.
10. a kind of grain coarsening according to claim 4-6 any one, the production of the cold-rolling galvanization steel band of high-elongation Method, it is characterised in that the zinc-plated process, the breaking elongation of finishing straightening is 0.7-1.8%.
CN201710517398.XA 2017-06-29 2017-06-29 A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method Pending CN107190205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710517398.XA CN107190205A (en) 2017-06-29 2017-06-29 A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710517398.XA CN107190205A (en) 2017-06-29 2017-06-29 A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method

Publications (1)

Publication Number Publication Date
CN107190205A true CN107190205A (en) 2017-09-22

Family

ID=59881080

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710517398.XA Pending CN107190205A (en) 2017-06-29 2017-06-29 A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method

Country Status (1)

Country Link
CN (1) CN107190205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112899562A (en) * 2021-01-15 2021-06-04 山东钢铁集团日照有限公司 Micro-carbon hot-dip galvanized steel strip with stable yield strength control and production method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0580528B2 (en) * 1985-02-19 1993-11-09 Kobe Steel Ltd
JP2011225905A (en) * 2010-04-15 2011-11-10 Nippon Steel Corp Method for producing cold rolled steel sheet and galvannealed steel sheet excellent in deep drawability
CN102758129A (en) * 2012-06-19 2012-10-31 河北钢铁股份有限公司邯郸分公司 Method for manufacturing non-spangle galvanized sheet DX54D+Z from aluminum killed steel
CN104946971A (en) * 2015-06-29 2015-09-30 唐山钢铁集团有限责任公司 Preparation method for high-performance stamping cold-rolled and galvanized steel strip
CN105648322A (en) * 2016-03-15 2016-06-08 唐山钢铁集团有限责任公司 Low-cost extra-deep-drawing-quality cold-rolled galvanized steel strip and preparation method thereof
CN106893932A (en) * 2017-03-08 2017-06-27 唐山国丰钢铁有限公司 A kind of appliance plate production technology of hot-galvanized steel band

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0580528B2 (en) * 1985-02-19 1993-11-09 Kobe Steel Ltd
JP2011225905A (en) * 2010-04-15 2011-11-10 Nippon Steel Corp Method for producing cold rolled steel sheet and galvannealed steel sheet excellent in deep drawability
CN102758129A (en) * 2012-06-19 2012-10-31 河北钢铁股份有限公司邯郸分公司 Method for manufacturing non-spangle galvanized sheet DX54D+Z from aluminum killed steel
CN104946971A (en) * 2015-06-29 2015-09-30 唐山钢铁集团有限责任公司 Preparation method for high-performance stamping cold-rolled and galvanized steel strip
CN105648322A (en) * 2016-03-15 2016-06-08 唐山钢铁集团有限责任公司 Low-cost extra-deep-drawing-quality cold-rolled galvanized steel strip and preparation method thereof
CN106893932A (en) * 2017-03-08 2017-06-27 唐山国丰钢铁有限公司 A kind of appliance plate production technology of hot-galvanized steel band

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112899562A (en) * 2021-01-15 2021-06-04 山东钢铁集团日照有限公司 Micro-carbon hot-dip galvanized steel strip with stable yield strength control and production method thereof

Similar Documents

Publication Publication Date Title
CN101914725B (en) Low-carbon ultra-deep punching cold-rolling steel sheet and production method thereof
CN106086638B (en) A kind of Galvanized Dual Phase Steel and its production method
CN105648322B (en) Inexpensive ultra-deep rushes level cold-rolling galvanization steel band and preparation method thereof
CN108866428B (en) Hot-dip aluminum-zinc steel plate with yield strength of 550MPa and manufacturing method thereof
CN106854729A (en) A kind of phosphorous gap-free atom cold-rolling galvanization steel plate and its manufacture method
CN107058881B (en) Inexpensive cold-rolling galvanization steel band and preparation method thereof suitable for color coating
CN111020437B (en) Manufacturing method of hot-dip galvanized steel strip with yield strength of above 580Mpa grade
CN109957726A (en) A kind of low-cost high-strength cold rolled annealed plate and manufacturing method
CN104611535A (en) Cold-rolled steel sheet and preparation method thereof
CN105525214A (en) Cold rolling hard tinning steel plate and production method thereof
CN104726765A (en) 1000MPa-grade high-strength cold-rolled packed steel strip and production method thereof
CN103451524A (en) Lacquer-coated strapping steel having thickness of 0.5 mm and tensile strength of greater than or equal to 1000 MPa, and production method thereof
CN110714165B (en) Cold-rolled sheet for 320 MPa-level household appliance panel and production method thereof
CN104451400A (en) TRIP-added high-strength steel for hot-dip galvanizing and production method thereof
CN114438413A (en) Hot-dip galvanized high-strength structural steel with yield strength of 340MPa and production method thereof
CN111690871B (en) Hot-rolled steel plate for cold-rolled electro-galvanized steel plate and manufacturing method
CN108796388B (en) Hot-dip galvanized steel plate for color coating and manufacturing method thereof
CN105256225A (en) Cold-rolled steel plate for elevator and preparation method for cold-rolled steel plate
CN104946971A (en) Preparation method for high-performance stamping cold-rolled and galvanized steel strip
CN107190205A (en) A kind of grain coarsening, the cold-rolling galvanization steel band of high-elongation and its production method
CN110358976A (en) A kind of high-carbon steel strip and its production method
CN104630614B (en) Method for improving forming performance of super-low-carbon aluminum killed steel galvanized product
CN103627953B (en) A kind of insensitive containing aluminium Multiphase Steel and production method thereof to isothermal time
CN116334470A (en) Production method of high-strength structural steel SGC570
CN102773286A (en) Method for producing galvanized steel wire with diameter of 1.85mm by No. 45 ordinary carbon wire rod

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20170922

RJ01 Rejection of invention patent application after publication