CN103627957A - Steel for CR4 hot dip galvanized automobile sheets and production method thereof - Google Patents
Steel for CR4 hot dip galvanized automobile sheets and production method thereof Download PDFInfo
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Abstract
本发明公开了一种CR4热镀锌汽车板用钢，其化学成分质量百分比为：C：0.0008-0.0015%，Mn：0.08-0.18%，Si：≤0.010%，P：≤0.010%，S：≤0.008%，Als：0.025-0.06%，N：≤0.004%，B：0.0006～0.0012%，Ti：0.03～0.07%，其余为Fe及不可避免杂质。本发明提供的CR4热镀锌汽车用钢及其生产方法通过调整C、Si、Mn、P、B含量和在对热轧、连续退火与热镀锌工艺综合优化，所生产的CR4热镀锌汽车用钢板具有高深冲性能、极低二次加工脆性转变温度与O5级汽车外板的特点，满足高端汽车用户要求，带来可观的经济效益。The invention discloses a steel for CR4 hot-dip galvanized automobile sheet. The mass percentage of its chemical composition is: C: 0.0008-0.0015%, Mn: 0.08-0.18%, Si: ≤0.010%, P: ≤0.010%, S: ≤0.008%, Als: 0.025-0.06%, N: ≤0.004%, B: 0.0006-0.0012%, Ti: 0.03-0.07%, and the rest are Fe and unavoidable impurities. The CR4 hot-dip galvanized automobile steel provided by the invention and the production method thereof are through adjusting C, Si, Mn, P, B content and comprehensively optimizing hot rolling, continuous annealing and hot-dip galvanizing processes, and the produced CR4 hot-dip galvanized The steel plate for automobile has the characteristics of high deep drawing performance, extremely low secondary processing brittle transition temperature and O5 grade automobile outer plate, which meets the requirements of high-end automobile users and brings considerable economic benefits.
Description
Technical field
The present invention relates to steel production technical field, particularly steel and production method thereof for a kind of CR4 hot dip galvanizing automobile plate.
Background technology
It is IF steel that CR4 belongs to Ti, it is the conventional super deep-draw heat zinc coating plate of American-European car system, be widely used in car gusset, inner plate of car door, send out on the high component of the forming requirements such as machine machine inner panel, in prior art, be mainly to adopt the method for pot galvanize continuous annealing to produce.General GMW standard requires as Re:140～180MPa, Rm:270～330MPa, A CR4 object performance
80:>=40%, r
90:>=1.9, n
90:>=0.20, SWET <-60 ℃ (extremely low secondary processing brittleness improves extremely cold regional automobile safety in utilization).
Conventional IF steel adopts Ti or Nb or Nb+Ti to fix the C of solid solution in process of production conventionally, N interstitial atom, by cold rolling heavy reduction rate and high-temperature annealing process, the finished product obtain pure ferrite matrix and { 111}<110> deep-draw texture, due to C ultralow in IF steel, after N constituent content and annealing, by Ti, fixedly separated out, the bonding force of crystal boundary is reduced greatly, secondary processing brittleness transition temperature (SWET) is about between 0～-20 ℃, thereby the auto sheet parts after steel plate deep-draw are high velocity impact generation intercrystalline cracking under severe cold environment, the Peril Incident that causes trolley part cracking.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can enhancing product performance, and reduces steel and the production method thereof for CR4 hot dip galvanizing automobile plate of secondary processing brittleness transition temperature.
One aspect of the present invention, a kind of CR4 hot dip galvanizing automobile plate steel is provided, and its chemical composition mass percent is: C:0.0008-0.0015%, Mn:0.08-0.18%, Si :≤0.010%, P :≤0.010%, S :≤0.008%, Als:0.025-0.06%, N :≤0.004%, B:0.0006～0.0012%, Ti:0.03～0.07%, all the other are Fe and inevitable impurity.
Another aspect of the present invention, provides a kind of method of steel for above-mentioned CR4 hot dip galvanizing automobile plate of producing, and comprising: after the chemical composition slab as claimed in claim 1 obtaining through smelting is heated, through roughing, finish rolling, obtain hot-rolled sheet;
Described hot-rolled sheet is coiled into hot rolled coil after laminar flow is cooling;
By described hot rolled coil by the chill volume of cold rolling acquisition;
Described chill volume is processed and obtained band steel through continuous annealing;
Then by described band steel after pot galvanize is processed, through the smooth finished product that coils into, described band steel is in hot galvanizing process, described band steel enters 465 ± 3 ℃ of zinc pot temperatures, 455～460 ℃ of zinc liquid temperatures, zinc pot Al:0.205～0.235%, zinc pot Fe :≤0.030%, zinc pot Pb :≤0.02%, zinc pot Cd :≤0.04%.
Further, when described slab is heated, Heating temperature is 1230 ± 30 ℃.
Further, during by the slab process roughing after heating, finish rolling, finishing temperature is 930 ± 20 ℃.
Further, when described hot-rolled sheet is coiled into hot rolled coil after laminar flow is cooling, coiling temperature is 730 ± 20 ℃.
Further, by described hot rolled coil, during by the chill volume of cold rolling acquisition, cold rolling draft is 76.4～85.5%.
Further, when described chill volume is processed to acquisition band steel through continuous annealing, in continuous annealing furnace, heating zone temperature is 830 ± 10 ℃, soaking zone temperature is 830 ± 10 ℃, slow cooling section temperature out is 700 ± 10 ℃, fast cold section of temperature out Wei465 ±10℃， stove district strip speed 100～125Mpm.
Further, the band steel after pot galvanize is processed carries out when smooth, adopting the wet polishing pattern of finishing liquid, polishing unit elongation 0.8～1.5%, polishing machine working roll roughness 3.0um.
CR4 hot dip galvanizing automobile provided by the invention by steel and production method thereof by adjusting Si, P, B content and to hot rolling, continuous annealing and hot dip galvanizing process complex optimum, the CR4 hot dip galvanizing automobile of producing has the feature of high deep punching capability, extremely low secondary processing brittleness transition temperature and O5 level automobile exterior panel with steel plate, meet high-end user vehicle requirement, bring considerable economic benefit.
Embodiment
A kind of CR4 hot dip galvanizing automobile plate steel that the embodiment of the present invention provides, its chemical composition is by weight percentage: C:0.0008-0.0015%, Mn:0.08-0.18%, Si :≤0.010%, P :≤0.010%, S :≤0.008%, Als:0.025-0.06%, N :≤0.004%, B:0.0006～0.0012%, Ti:0.03～0.07%, all the other are Fe and inevitable impurity.
The embodiment of the present invention also provides a kind of method of steel for above-mentioned CR4 hot dip galvanizing automobile plate of producing, and comprises following step:
Step S1: after the chemical composition slab as claimed in claim 1 obtaining through smelting is heated, obtain hot-rolled sheet through roughing, finish rolling.
Wherein, when described slab is heated, Heating temperature is 1230 ± 30 ℃.During by the slab process roughing after heating, finish rolling, finishing temperature is 930 ± 20 ℃.
Choosing of these temperature parameter scopes is the appropriate process window with the field mounted device ability that can meet that the quality of zinc-plated finished product is formulated according to the physical metallurgy principle of material own, Heating temperature is 1230 ± 30 ℃, the formulation that finishing temperature is 930 ± 20 ℃ is to separate out by controlling microtexture and the particle of hot rolled coil raw material, by heredity, optimize the mechanical property of zinc-plated finished product, improve the impact of the interpolation of strengthening element B on material plasticity, improve CR4 village material deep drawing quality.
Step S2: described hot-rolled sheet is coiled into hot rolled coil after laminar flow is cooling, and coiling temperature is 730 ± 20 ℃.
Step S3: by the chill volume of cold rolling acquisition, cold rolling draft is 76.4～85.5% by described hot rolled coil.
Soft Reduction Gradient scope 76.4～85.5%, apart from the corresponding ratio of depressing, considers the rolling load of cold rolling mill according to different thickness set of specifications, also considers the impact of draft on favourable deep-draw texture, and final acquisition meets high r value and meets deep draw requirement.Solve the excessive problem with deep drawing quality deficiency of the unreasonable energy consumption causing of draft.
Step S4: described chill volume is processed and obtained band steel through continuous annealing;
Wherein, when described chill volume is processed to acquisition band steel through continuous annealing, in continuous annealing furnace, heating zone temperature is 830 ± 10 ℃, soaking zone temperature is 830 ± 10 ℃, slow cooling section temperature out is 700 ± 10 ℃, fast cold section of temperature out Wei465 ±10℃， stove district strip speed 100～125Mpm.
The interpolation of considering B will worsen r value and improve recrystallization temperature, on the basis of 810 ℃ of Heating temperatures of the conventional IF trade mark, bring up to 830 ± 10 ℃ of heat and soaking annealing temperature completes abundant recrystallize and grain growth, realize ultra low strength and the good press formability of material, 700 ± 10 ℃ of slow cooling section temperature outs, 465 ± 10 ℃ of fast cold temperature outs, the setting range of stove district travelling speed 100～125mpm is mainly the steady running ability of considering Dai Ganglu district, solve in production process because temperature is unreasonable too high or too low with travelling speed, bring the fluctuation in Lu district tension fluctuation and zinc pot process section zinc pendular ring border, thereby impact is with homogeneity and the surface quality of steel mechanical property, this requires effectively to have solved and under conventional production model, produces belt steel surface cadmia, zinc gray defect, improve band steel head, middle and end stability.
Step S5: then by described band steel after pot galvanize is processed, through the smooth finished product that coils into.
Wherein, described band steel is in hot galvanizing process, and described band steel enters 465 ± 3 ℃ of zinc pot temperatures, 455～460 ℃ of zinc liquid temperatures, and zinc pot Al:0.205～0.235%, zinc pot Fe :≤0.030%, zinc pot Pb :≤0.02%, zinc pot Cd :≤0.04%.
It is to control both temperature difference with the strict control one of 455～460 ℃ of zinc liquid temperatures that band steel enters 465 ± 3 ℃ of zinc pot temperatures, avoid entering the too high heat rising zinc liquid temperature bringing of zinc pot temperature with steel, it is too low that band steel enters zinc pot temperature, shortage of heat causes zinc liquid temperature to reduce, this zinc pot temperature height is indefinite, to cause Fe, Zn, Al three in zinc pot to react complicated, cause the surface imperfection such as cadmia zinc flow liner.Band steel is entered to zinc pot temperature to present technique main points and zinc liquid temperature is accurately controlled, and solve the desired surperficial cadmia quality problems of CR4 zinc-plated O5 level outside plate.
By the Al content span of control 0.205～0.235% in the zinc liquid of zinc pot, Fe content is controlled at and is less than or equal to 0.030%, is mainly to generate Fe in order to produce the chemical reaction of best Al and Fe
2al
5, production scum silica frost floats to zinc liquid surface and is beneficial to removal, reduces cadmia adherent zone steel, produces the zinc-plated automobile exterior panel that O5 level requires, and the Al upper limit is controlled minimizing iron loss, the mobility of too high reduction zinc liquid; Pb content in the zinc liquid of zinc pot is controlled at and is less than or equal to 0.02% and is controlled at and is less than or equal to 0.04% with Cd content, is mainly to control galvanized sheet surface zinc to spend size, meets the surface tissue requirement of spending zinc-plated outside plate without zinc.
Band steel after pot galvanize is processed carries out when smooth, adopting the wet polishing pattern of finishing liquid, polishing unit elongation 0.8～1.5%, polishing machine working roll roughness 3.0um.
Polishing unit elongation 0.8～1.5%, two parameter areas of polishing machine working roll roughness 3.0um selected is to consider the mechanical property of product and surface tissue and determine, by smooth unit elongation and roughness being controlled to the auto sheet product that can obtain low yield strength and the requirement of customer requirements galvanized sheet surfaceness.Solved because yield strength is high, deep drawing quality problem and little polishing unit elongation cause product surfaceness on the low side, affect automobile exterior panel painting effect.
Main alloy element effect of the present invention and limited range are as follows:
Carbon: carbon is to improve the most economical effective element of the strength of materials.For producing deep drawing automobile sheet, need to reduce the disadvantageous effect of solid solution C atom pairs deep-draw texture, worsen material deep drawability, the carbon content setting range that the present invention adopts is 0.0008-0.0015%.
Silicon: silicon is solution strengthening element, but adding too high silicon can have a negative impact to the plasticity of material, the oxidate that Si annealing furnace in the pyroreaction of Mn produce if exceed simultaneously, at matrix surface, stops the Host range of Fe and zinc liquid, thereby causes substrate platability poor.Therefore, the present invention adds silicone content for being less than or equal to 0.010%.
Manganese: manganese has solution strengthening effect, simultaneously can improve material hardening capacity, is to improve one of strength of materials important element, and the too low strength of materials of Mn element is not enough, and Mn element is crossed high strength rising lower plastic limit, thus the present invention to add manganese content be 0.08-0.18%.
Sulphur and phosphorus: the deterioration element of the too high meeting of sulphur and phosphoric to toughness of material and plasticity.The present invention strictly defines sulphur content and is controlled at and is less than or equal to 0.008%, and phosphorus content is controlled at and is less than or equal to 0.010%.
Aluminium: aluminium is mainly deoxidant element, too high Al causes intensity to raise, Plasticity Decreasing.It is 0.025～0.06% that the present invention defines aluminium content.
Titanium: make full use of Ti and react generation TiN with N.The present invention adds 0.08%～0.12% Ti and coordinates suitable production technique, and interstitial atom N is completely fixed, and avoids the existence of too much superfluous Ti simultaneously, improves the deep drawability of material, and therefore, it is 0.03～0.07% that the present invention limits Ti content.
Nitrogen: nitrogen exists as interstitial atom, worsens IF steel plasticity and ageing, with the rational Match of Ti constituent content, completes the fully fixing of N.Therefore, the present invention limits nitrogen content for being less than or equal to 0.004%.
P and B: phosphorus is strengthening element in IF steel, P content surpasses 0.01% pair of intensity and improves very obvious, there is the easy generation grain boundary segregation generation transgranular fracture of P element simultaneously, reduce the secondary processing brittleness of material, and boron in super clean IF steel to wander about as a refugee the segregation of shape to crystal boundary, reinforced ferrite grain-boundary strength, intercrystalline cracking ability is resisted in raising in material secondary process engineering, the grain boundary segregation of B will suppress the Grain Boundary Segregation of P simultaneously, reduce secondary processing brittleness transition temperature, but too high boron content will improve recrystallization temperature and solution strengthening, the serious material deep drawability that reduces, too low boron content does not reach the grain-boundary strengthening effect of expection.Therefore, the present invention limits P content and is controlled at and is less than or equal to 0.010%, B content and is controlled at 0.0006～0.0012%
CR4 hot dip galvanizing automobile provided by the invention has carried out strict control with steel to Si, P and B constituent content, the minimizing of Si constituent content improves zinc plated plate plated layer tack, the reasonable control of the P constituent content upper limit can reduce the grain boundary segregation of P, improve anti-secondary processing brittleness, the reasonable control of B constituent content bound, by B Grain Boundary Segregation, strengthening crystal boundary also prevents the segregation of phosphorus, avoid the temperature of result again that too high B constituent content causes to raise simultaneously, caused material deep drawability to reduce.
CR4 hot dip galvanizing automobile provided by the invention considers hot rolling reeling temperature by the production method of steel, annealing temperature, zinc pot processing parameter, the method has adopted hot-rolled high to batch, the deep drawability that the clean ferritic structure of axle shape improves material such as can obtain, in the method annealing process procedure, high-temperature annealing process can improve forming property and urge the dissolving into carbide, the fast cold section of high temperature difference and rate of cooling can guarantee to dissolve rear C and move grain boundaries strengthening crystal boundary subsequently, improve anti-secondary processing brittleness, in the method hot dip galvanizing process process, adopt higher band steel to enter pot temperature, stable zinc pot Al, Fe, Pb, Cd constituent content is controlled, and be conducive to the in stable condition strip speed of zinc pot, reduce the cadmia of surface of steel plate for CR4 hot dip galvanizing automobile, the surface imperfection such as zinc gray, produce the O5 level automobile exterior panel meeting the demands.
CR4 hot dip galvanizing automobile provided by the invention by steel and production method thereof by adjusting Si, P, B content and to hot rolling, continuous annealing and hot dip galvanizing process complex optimum, the CR4 hot dip galvanizing automobile of producing has the feature of high deep punching capability, extremely low secondary processing brittleness transition temperature and O5 level automobile exterior panel with steel plate, meet high-end user vehicle requirement, bring considerable economic benefit.
In order to understand the present invention in depth, below in conjunction with specific embodiment, the present invention is described in detail.
In embodiments of the present invention, each chemical composition content is as shown in Table 1:
Table one
The good mechanical property that the CR4 that table two is produced for the method (comprising organization of production, chemical composition and technique) described according to the present invention has.
Table two
The CR4 that table three is produced by the method (comprising chemical composition and technique) described according to the present invention is had ultralow secondary processing brittleness transition temperature (SWET)
Table three
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. a CR4 hot dip galvanizing automobile plate steel, is characterized in that, its chemical composition mass percent is:
C:0.0008-0.0015%, Mn:0.08-0.18%, Si :≤0.010%, P :≤0.010%, S :≤0.008%, Als:0.025-0.06%, N :≤0.004%, B:0.0006～0.0012%, Ti:0.03～0.07%, all the other are Fe and inevitable impurity.
2. produce a method for steel for a kind of CR4 hot dip galvanizing automobile plate as claimed in claim 1, it is characterized in that, comprising:
After the chemical composition slab as claimed in claim 1 obtaining through smelting is heated, through roughing, finish rolling, obtain hot-rolled sheet;
Described hot-rolled sheet is coiled into hot rolled coil after laminar flow is cooling;
By described hot rolled coil by the chill volume of cold rolling acquisition;
Described chill volume is processed and obtained band steel through continuous annealing;
Then by described band steel after pot galvanize is processed, through the smooth finished product that coils into, described band steel is in hot galvanizing process, described band steel enters 465 ± 3 ℃ of zinc pot temperatures, 455～460 ℃ of zinc liquid temperatures, zinc pot Al:0.205～0.235%, zinc pot Fe :≤0.030%, zinc pot Pb :≤0.02%, zinc pot Cd :≤0.04%.
3. method as claimed in claim 2, is characterized in that:
When described slab is heated, Heating temperature is 1230 ± 30 ℃.
4. method as claimed in claim 2, is characterized in that:
During by the slab process roughing after heating, finish rolling, finishing temperature is 930 ± 20 ℃.
5. method as claimed in claim 2, is characterized in that:
When described hot-rolled sheet is coiled into hot rolled coil after laminar flow is cooling, coiling temperature is 730 ± 20 ℃.
6. method as claimed in claim 2, is characterized in that:
By described hot rolled coil, during by the chill volume of cold rolling acquisition, cold rolling draft is 76.4～85.5%.
7. method as claimed in claim 2, is characterized in that:
When described chill volume is processed to acquisition band steel through continuous annealing, in continuous annealing furnace, heating zone temperature is 830 ± 10 ℃, and soaking zone temperature is 830 ± 10 ℃, and slow cooling section temperature out is 700 ± 10 ℃, fast cold section of temperature out Wei465 ±10℃， stove district strip speed 100～125Mpm.
8. method as claimed in claim 2, is characterized in that:
Band steel after pot galvanize is processed carries out when smooth, adopting the wet polishing pattern of finishing liquid, polishing unit elongation 0.8～1.5%, polishing machine working roll roughness 3.0um.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105296907A (en) * | 2015-11-12 | 2016-02-03 | 首钢总公司 | Method for improving quality of galvanized layer of galvanized automobile sheet |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0967648A (en) * | 1995-08-31 | 1997-03-11 | Kawasaki Steel Corp | Hot rolled steel sheet and its production |
| JPH09157817A (en) * | 1995-12-11 | 1997-06-17 | Nkk Corp | Method for manufacturing thin coated galvanized steel sheet |
| CN101135025A (en) * | 2006-08-31 | 2008-03-05 | 宝山钢铁股份有限公司 | Production of cold rolling high-strength ultra-deep-drawing steel plate by bell-type furnace and method for manufacturing same |
| CN101255529A (en) * | 2008-03-06 | 2008-09-03 | 武汉钢铁(集团)公司 | High plastic-strain ratio galvanized steel sheet and production method |
| CN102719741A (en) * | 2012-06-19 | 2012-10-10 | 武汉钢铁(集团)公司 | Hot-galvanized high-strength steel with 220MPa-level yield strength and production method thereof |
| CN102822359A (en) * | 2010-03-26 | 2012-12-12 | 杰富意钢铁株式会社 | Method for producing high-strength steel plate having superior deep drawing characteristics |
-
2013
- 2013-10-14 CN CN201310479363.3A patent/CN103627957B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0967648A (en) * | 1995-08-31 | 1997-03-11 | Kawasaki Steel Corp | Hot rolled steel sheet and its production |
| JPH09157817A (en) * | 1995-12-11 | 1997-06-17 | Nkk Corp | Method for manufacturing thin coated galvanized steel sheet |
| CN101135025A (en) * | 2006-08-31 | 2008-03-05 | 宝山钢铁股份有限公司 | Production of cold rolling high-strength ultra-deep-drawing steel plate by bell-type furnace and method for manufacturing same |
| CN101255529A (en) * | 2008-03-06 | 2008-09-03 | 武汉钢铁(集团)公司 | High plastic-strain ratio galvanized steel sheet and production method |
| CN102822359A (en) * | 2010-03-26 | 2012-12-12 | 杰富意钢铁株式会社 | Method for producing high-strength steel plate having superior deep drawing characteristics |
| CN102719741A (en) * | 2012-06-19 | 2012-10-10 | 武汉钢铁(集团)公司 | Hot-galvanized high-strength steel with 220MPa-level yield strength and production method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李九岭等: "《带钢连续热镀锌生产问答》", 31 January 2011, 冶金工业出版社, article ""带钢连续热镀锌生产问答"", pages: 246 * |
| 田荣璋等: "《锌合金》", 31 December 2010, 中南大学出版社, article ""锌合金"", pages: 117 * |
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