CN108265230A - The high strength steel band and its production method of a kind of no timeliness of household electrical appliances - Google Patents
The high strength steel band and its production method of a kind of no timeliness of household electrical appliances Download PDFInfo
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- CN108265230A CN108265230A CN201810031465.1A CN201810031465A CN108265230A CN 108265230 A CN108265230 A CN 108265230A CN 201810031465 A CN201810031465 A CN 201810031465A CN 108265230 A CN108265230 A CN 108265230A
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- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C21D8/0226—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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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 the high strength steel band and its production method of a kind of no timeliness of household electrical appliances, the steel band chemical composition composition and its mass percentage are：C≤0.008%, Mn≤0.15%, S≤0.015%, P≤0.020%, Si≤0.03%, Als：0.020~0.060%, N≤0.0040%, Ti：0.015~0.075%, remaining is being mingled in Fe and allowed band；The production method includes hot rolling, cold rolling and zinc-plated process.The present invention properly increases the performance of incoming hot rolled slab by reducing hot-rolling coiling temperature, the crystallite dimension of galvanizing production is controlled by reducing annealing temperature in zinc-plated process and annealing time, so as to obtain household electrical appliances high strength steel with the performance needed for product.Steel band of the present invention had not only had enough intensity, without timeliness, but also with surface quality good enough.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of household electrical appliances the high strength steel band of no timeliness and its life
Production method.
Background technology
With the fast development of household electrical appliances industry, people are higher and higher to the corrosion resistance and appearance requirement of household electrical appliance, zinc-plated production
Product are constantly being promoted in household electrical appliances with the ratio in steel, since household appliances will appear different journeys in transport and handling process
Degree collides with, so household electrical appliances galvanized steel plain sheet requires have certain intensity, to ensure the dent resistance of steel plate and the property fallen.Due to
Household appliances are generally cut, color coating, and processes, the process-cycle from steel plate to household electrical appliances finished product such as blanking, punching press assembling compare
It is long, so the timeliness requirement to steel plate is higher.
The characteristics of for the intensity of guarantee household appliances and without timeliness, steel plate supplier generally uses adding for automobile at present
Phosphorus high-strength steel substitutes, while quality control on the surface is more difficult in steelmaking process, is extremely difficult to the requirement of household appliances enterprise, simultaneously because
Cost is too high, and household appliances enterprise is not to receive very much, and promotion effect is bad.Household appliances compare relative to automobile steel, punching press
Depth is relatively low.
The method have the characteristics that the use steel feature of household appliances enterprise is fully taken into account, the high-strength steel of the no timeliness of household electrical appliances
Yield strength is generally in 230-290MPa or so.It is used as household electrical appliances high-strength steel using current widely used ultralow carbon products
Substrate, by the way that hot rolling, cold-rolling process is reasonably controlled to realize the performance of the high-strength steel of household appliances requirement, while without timeliness
Property.
Invention content
The technical problem to be solved in the present invention is to provide a kind of household electrical appliances the high strength steel bands of no timeliness and its production
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of high-strength plating of the no timeliness of household electrical appliances
Zinc steel band, the steel band chemical composition composition and its mass percentage are：C≤0.008%, Mn≤0.15%, S≤0.015%, P
≤ 0.020%, Si≤0.03%, Als：0.020~0.060%, N≤0.0040%, Ti：0.015~0.075%, remaining is Fe and permits
Being mingled in the range of perhaps.
Thickness of strips of the present invention is 0.35~1.2mm.
Steel band performance of the present invention is：Yield strength 230-260MPa, tensile strength 330-380MPa, A80：30.0-
38.0%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
The present invention also provides a kind of production method of the high strength steel band of the no timeliness of household electrical appliances, the production methods
Including hot rolling, cold rolling and zinc-plated process；The zinc-plated process, annealing time≤180s.
Hot-rolled process of the present invention, hot-rolling coiling temperature are 660-680 DEG C；Hot Rolling Strip specification is 1.8-
4.5mm, performance are：Tension strong 305-350MPa, yield strength 220-250MPa, elongation percentage 40.0-48.5%.
Cold rolling process of the present invention, cold rolling thickness are 0.35-1.2mm, compression ratio 72.0-82.0%.
Zinc-plated process of the present invention, line speed 110-140m/min.
Zinc-plated process of the present invention, 700-740 DEG C of bringing-up section temperature, 700-740 DEG C of soaking zone temperature, steel band enters zinc
460-470 DEG C of pot temperature.
Zinc-plated process of the present invention, finishing straightening elongation percentage are that elongation percentage is（Belt steel thickness+0.4）±0.1%.
The product standard of the high strength steel band of the no timeliness of household electrical appliances of the present invention refers to GB/T2518-2008《Continuous Heat
Galvanized steel plain sheet and steel band》, properties of product examination criteria is with reference to GB/T228.1《Metal material stretching test part 1 room temperature is tried
Proved recipe method》.
It is using advantageous effect caused by above-mentioned technical proposal：1st, the present invention is fitted using hot-rolling coiling temperature is reduced
When the performance for improving incoming hot rolled slab, by reducing annealing temperature and annealing time in zinc-plated process, to control galvanizing production
Crystallite dimension, so as to obtain household electrical appliances high strength steel with the performance needed for product.2nd, steel grade of the present invention is not added with excessive P etc.
Intensity is improved, is also not added with influencing the element of strip surface quality, strip is made to obtain enough intensity, without timeliness, and obtain
Good surface quality enough.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 0.6mm, chemical composition composition and its quality hundred
Point content is：C：0.008%, Mn：0.15%, S：0.015%, P：0.020%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.030%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：680 DEG C of coiling temperature.Hot Rolling Strip specification is 2.75 × 1020mm, and performance is：Tensile strength
313MPa, yield strength 246MPa, elongation percentage 45.5%；
（2）Cold rolling process：Cold rolling thickness be 0.6 × 1000mm, compression ratio 78.2%；
（3）Zinc-plated process：Line speed is 125m/min, and annealing time 134s, the heating temperature of strip is 707 DEG C, band
710 DEG C of the soaking temperature of steel；Strip enters 465 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.1%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 255MPa, tension
Intensity 355MPa, A80：32.0%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 2
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 0.6mm, chemical composition composition and its quality hundred
Point content is：C：0.008%, Mn：0.15%, S：0.015%, P：0.020%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.030%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：660 DEG C of coiling temperature；Hot Rolling Strip specification is 2.75 × 1020mm, and performance is：Tensile strength
313MPa, yield strength 246MPa, elongation percentage 45.5%；
（2）Cold rolling process：Cold rolling thickness be 0.6 × 1000mm, compression ratio 78.2%；
（3）Zinc-plated process：Line speed is 125m/min, and annealing time 134s, the heating temperature of strip is 707 DEG C, band
710 DEG C of the soaking temperature of steel；Strip enters 468 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.1%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 251MPa, tension
Intensity 353MPa, A80：32.0%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 3
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 1.2mm, chemical composition composition and its quality hundred
Point content is：C：0.008%, Mn：0.15%, S：0.015%, P：0.020%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.075%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：670 DEG C of coiling temperature.Hot Rolling Strip specification is 4.5 × 1270mm, and performance is：Tensile strength
308MPa, yield strength 226MPa, elongation percentage 48.5%；
（2）Cold rolling process：Cold rolling thickness be 1.2 × 1000mm, compression ratio 73.3%；
（3）Zinc-plated process：Line speed is 110m/min, and annealing time 152s, the heating temperature of strip is 700 DEG C, band
701 DEG C of the soaking temperature of steel；Strip enters 460 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.5%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 243MPa, tension
Intensity 335MPa, A80：34.5%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 4
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 0.8mm, chemical composition composition and its quality hundred
Point content is：C：0.005%, Mn：0.07%, S：0.008%, P：0.012%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.075%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：670 DEG C of coiling temperature.Hot Rolling Strip specification is 4.0 × 1270mm, and performance is：Tensile strength
326MPa, yield strength 232MPa, elongation percentage 46.0%；
（2）Cold rolling process：Cold rolling thickness be 0.8 × 1000mm, compression ratio 80%；
（3）Zinc-plated process：Line speed is 120m/min, and annealing time 140s, the heating temperature of strip is 700 DEG C, band
701 DEG C of the soaking temperature of steel；Strip enters 465 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.3%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 236MPa, tension
Intensity 343MPa, A80：31.5%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 5
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 0.8mm, chemical composition composition and its quality hundred
Point content is：C：0.005%, Mn：0.07%, S：0.008%, P：0.012%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.075%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：660 DEG C of coiling temperature.Hot Rolling Strip specification is 4.0 × 1270mm, and performance is：Tensile strength
336MPa, yield strength 238MPa, elongation percentage 45.5%；
（2）Cold rolling process：Cold rolling thickness be 0.8 × 1000mm, compression ratio 80%；
（3）Zinc-plated process：Line speed is 120m/min, and annealing time 140s, the heating temperature of strip is 739 DEG C, band
740 DEG C of the soaking temperature of steel；Strip enters 468 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.1%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 231MPa, tension
Intensity 338MPa, A80：32.5%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 6
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 1.0mm, chemical composition composition and its quality hundred
Point content is：C：0.005%, Mn：0.15%, S：0.008%, P：0.012%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.015%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：660 DEG C of coiling temperature.Hot Rolling Strip specification is 4.25 × 1270mm, and performance is：Tensile strength
339MPa, yield strength 241MPa, elongation percentage 43.5%；
（2）Cold rolling process：Cold rolling thickness be 1.0 × 1250mm, compression ratio 76.5%；
（3）Zinc-plated process：Line speed is 120m/min, and annealing time 140s, the heating temperature of strip is 739 DEG C, band
740 DEG C of the soaking temperature of steel；Strip enters 465 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.3%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 243MPa, tension
Intensity 343MPa, A80：33.5%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 7
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 1.0mm, chemical composition composition and its quality hundred
Point content is：C：0.005%, Mn：0.15%, S：0.008%, P：0.012%, Si：0.03%, Als：0.046%, N：0.0035%,
Ti：0.015%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：680 DEG C of coiling temperature.Hot Rolling Strip specification is 4.25 × 1270mm, and performance is：Tensile strength
328MPa, yield strength 235MPa, elongation percentage 45.5%；
（2）Cold rolling process：Cold rolling thickness be 1.0 × 1250mm, compression ratio 76.5%；
（3）Zinc-plated process：Line speed is 120m/min, and annealing time 140s, the heating temperature of strip is 706 DEG C, band
710 DEG C of the soaking temperature of steel；Strip enters 466 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.5%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 251MPa, tension
Intensity 354MPa, A80：31.5%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 8
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 0.35mm, chemical composition composition and its quality hundred
Point content is：C：0.004%, Mn：0.10%, S：0.010%, P：0.010%, Si：0.02%, Als：0.020%, N：0.0040%,
Ti：0.020%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：660 DEG C of coiling temperature.Hot Rolling Strip specification is 1.8 × 1270mm, and performance is：Tensile strength
341MPa, yield strength 247MPa, elongation percentage 40.0%；
（2）Cold rolling process：Cold rolling thickness be 0.35 × 1250mm, compression ratio 82%；
（3）Zinc-plated process：Line speed is 140m/min, and annealing time 102s, the heating temperature of strip is 740 DEG C, band
700 DEG C of the soaking temperature of steel；Strip enters 470 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 0.85%；Other parameters with it is general
The operating parameter of logical galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 257MPa, tension
Intensity 365MPa, A80：30.0%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
Embodiment 9
The high strength steel tape thickness of the no timeliness of the present embodiment household electrical appliances is 1.2mm, chemical composition composition and its quality hundred
Point content is：C：0.006%, Mn：0.12%, S：0.013%, P：0.015%, Si：0.025%, Als：0.060%, N：0.0020%,
Ti：0.050%, remaining is being mingled in Fe and allowed band.
The high strength steel band production method of the no timeliness of the present embodiment household electrical appliances includes hot rolling, cold rolling and zinc-plated process,
Specific process step is as described below：
（1）Hot-rolled process：660 DEG C of coiling temperature.Hot Rolling Strip specification is 4.25 × 1270mm, and performance is：Tensile strength
331MPa, yield strength 243MPa, elongation percentage 48.5%；
（2）Cold rolling process：Cold rolling thickness be 1.2 × 1250mm, compression ratio 72%；
（3）Zinc-plated process：Line speed is 120m/min, and annealing time 180s, the heating temperature of strip is 700 DEG C, band
740 DEG C of the soaking temperature of steel；Strip enters 460 DEG C of zinc pot temperature；The breaking elongation of finishing straightening is 1.5%；Other parameters with it is common
The operating parameter of galvanizing production is identical.
Performance of the high strength steel with product of the no timeliness of the present embodiment household electrical appliances be：Yield strength 247MPa, tension
Intensity 349MPa, A80：38%；170 ° of baking 10min, strip illustrate no timeliness without yield point elongation.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (9)
1. the high strength steel band of the no timeliness of a kind of household electrical appliances, which is characterized in that the steel band chemical composition composition and its matter
Measuring percentage composition is：C≤0.008%, Mn≤0.15%, S≤0.015%, P≤0.020%, Si≤0.03%, Als：0.020~
0.060%, N≤0.0040%, Ti：0.015~0.075%, remaining is being mingled in Fe and allowed band.
A kind of 2. high strength steel band of the no timeliness of household electrical appliances according to claim 1, which is characterized in that the steel band
Thickness is 0.35~1.2mm.
A kind of 3. high strength steel band of the no timeliness of household electrical appliances according to claim 1, which is characterized in that the steel band
Performance is：Yield strength 230-260MPa, tensile strength 330-380MPa, A80：30.0-38.0%.
4. the producer of the high strength steel band based on a kind of no timeliness of household electrical appliances described in claim 1-3 any one
Method, which is characterized in that the production method includes hot rolling, cold rolling and zinc-plated process；The zinc-plated process, annealing time≤
180s。
5. a kind of production method of the high strength steel band of the no timeliness of household electrical appliances according to claim 4, feature exist
In the hot-rolled process, hot-rolling coiling temperature is 660-680 DEG C；Hot Rolling Strip specification is 1.8-4.5mm, and performance is：It is anti-
Draw strong 305-350MPa, yield strength 220-250MPa, elongation percentage 40.0-48.5%.
6. a kind of production method of the high strength steel band of the no timeliness of household electrical appliances according to claim 4, feature exist
In the cold rolling process, cold rolling thickness is 0.35-1.2mm, compression ratio 72.0-82.0%.
7. a kind of producer of the high strength steel band of the no timeliness of household electrical appliances according to claim 4-6 any one
Method, which is characterized in that the zinc-plated process, line speed 110-140m/min.
8. a kind of producer of the high strength steel band of the no timeliness of household electrical appliances according to claim 4-6 any one
Method, which is characterized in that the zinc-plated process, 700-740 DEG C of bringing-up section temperature, 700-740 DEG C of soaking zone temperature, steel band enters zinc
460-470 DEG C of pot temperature.
9. a kind of producer of the high strength steel band of the no timeliness of household electrical appliances according to claim 4-6 any one
Method, which is characterized in that the zinc-plated process, finishing straightening elongation percentage are（Belt steel thickness+0.4）±0.1%.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088238A (en) * | 1996-09-09 | 1998-04-07 | Nkk Corp | Production of electrogalvanized steel sheet excellent in surface appearance and workability |
| JPH10324953A (en) * | 1997-03-26 | 1998-12-08 | Nkk Corp | Cold-rolled steel sheet and galvanized steel sheet excellent in panel surface shape and dent resistance, and their manufacture |
| JP2012188676A (en) * | 2011-03-08 | 2012-10-04 | Sumitomo Metal Ind Ltd | Galvannealed steel sheet, and method for manufacturing the same |
| CN103215495A (en) * | 2013-04-18 | 2013-07-24 | 首钢总公司 | Hot-dipped galvanized plate for side surrounding plate of washing machine and production method of hot-dipped galvanized plate |
| CN104946978A (en) * | 2015-07-07 | 2015-09-30 | 新余钢铁集团有限公司 | Color-coated cold-rolled baseplate used for household appliance panel and manufacturing method of color-coated cold-rolled baseplate |
| 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 |
-
2018
- 2018-01-12 CN CN201810031465.1A patent/CN108265230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088238A (en) * | 1996-09-09 | 1998-04-07 | Nkk Corp | Production of electrogalvanized steel sheet excellent in surface appearance and workability |
| JPH10324953A (en) * | 1997-03-26 | 1998-12-08 | Nkk Corp | Cold-rolled steel sheet and galvanized steel sheet excellent in panel surface shape and dent resistance, and their manufacture |
| JP2012188676A (en) * | 2011-03-08 | 2012-10-04 | Sumitomo Metal Ind Ltd | Galvannealed steel sheet, and method for manufacturing the same |
| CN103215495A (en) * | 2013-04-18 | 2013-07-24 | 首钢总公司 | Hot-dipped galvanized plate for side surrounding plate of washing machine and production method of hot-dipped galvanized plate |
| CN104946978A (en) * | 2015-07-07 | 2015-09-30 | 新余钢铁集团有限公司 | Color-coated cold-rolled baseplate used for household appliance panel and manufacturing method of color-coated cold-rolled baseplate |
| 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 |
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