CN106834949A - A kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate and preparation method thereof - Google Patents
A kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate and preparation method thereof Download PDFInfo
- Publication number
- CN106834949A CN106834949A CN201710192250.3A CN201710192250A CN106834949A CN 106834949 A CN106834949 A CN 106834949A CN 201710192250 A CN201710192250 A CN 201710192250A CN 106834949 A CN106834949 A CN 106834949A
- Authority
- CN
- China
- Prior art keywords
- acid
- temperature
- preparation
- cleaning plate
- finishing
- 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.)
- Granted
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
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention discloses a kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate and preparation method thereof, its contained chemical composition and percentage by weight are：C 0.06~0.09%, Mn 0.35~0.80%, Als 0.03~0.06%, Ti 0.07~0.09%, Si≤0.05%, Nb≤0.01%, S≤0.008%, P≤0.015%, N≤0.004%, O≤0.003%, remaining is iron and inevitable impurity.Prepared through following steps：Converter smelting ladle argon-blown LF stoves refining RH application of vacuum continuous casting hot continuous rolling section cooling is batched into continuous pickling line and carries out pickling.Its tissue morphology is ferrite+a small amount of carbide+a small amount of pearlite, its grain size number is 11~12 grades, yield strength is 535~550MPa, tensile strength is 625~645MPa, elongation percentage is 22~25%, with FB (02) ratings above strip surface quality and good processing characteristics.
Description
Technical field
The present invention relates to acid-cleaning plate and preparation method thereof, and in particular to a kind of yield strength 500MPa grades low silicon titaniferous pickling
Plate and preparation method thereof.
Background technology
High-Strength Low-Alloy vehicle structure steel typically uses Nb microalloys and suitably adds Si composition designs.Rolled in hot rolling
Because the recrystallization inhibitory action of Nb during system, steel grade roll-force in the operation of rolling is increased very fast, roll is broken
Bad effect further substantially, causes roll pitted skin, strip surface quality after influence pickling.The addition of Si elements, causes belt steel surface
Iron scale viscosity enhancing, it is difficult to remove, occur along rolling direction longitudinal direction pressure oxygen shape striped.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate and its
Preparation method, it has FB (02) ratings above strip surface quality and good processing characteristics.
The technical scheme that the present invention takes is：
A kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate, its chemical composition and percentage by weight are：C 0.06~
0.09%th, Mn 0.35~0.80%, Als 0.03~0.06%, Ti 0.07~0.09%, Si≤0.05%, Nb≤
0.01%th, S≤0.008%, P≤0.015%, N≤0.004%, O≤0.003%, remaining is iron and inevitable impurity.
Further, its chemical composition and percentage by weight are preferably：C 0.064~0.086%, Mn 0.42~
0.76%th, Als 0.032~0.058%, Ti 0.074~0.085%, Si 0.01~0.05%, Nb 0.002~
0.008%th, S 0.002~0.006%, P 0.002~0.011%, N 0.001~0.0035%, O 0.001~
0.0026%, remaining is iron and inevitable impurity.
Further, its chemical composition and percentage by weight are more preferably：C 0.075%, Mn 0.68%, Als
0.04%th, Ti 0.08%, Si 0.02%, Nb 0.005%, S 0.004%, P 0.011%, N 0.0025%, O
0.0015%, remaining is iron and inevitable impurity.
Present invention also offers the above-mentioned yield strength 500MPa grades preparation method of low silicon titaniferous acid-cleaning plate, including following step
Suddenly：-- -- -- -- -- -- section cooling -- batching -- enters hot continuous rolling continuous casting RH application of vacuum the refining of LF stoves ladle argon-blown converter smelting
Entering continuous pickling line carries out pickling；Pickling temperature is 70~80 DEG C, 80~160m/min of pickling speed；Each acid tank dissociates acid solution
Concentration is respectively：The free acid strength of 1# acid tanks is 25~75g/L, and the free acid strength of 2# acid tanks is 95~145g/L, 3# acid
The free acid strength of groove is 140~190g/L.
Further, in hot continuous rolling step, heating-up temperature is 1220~1250 DEG C, and soaking time is no less than 40min；Roughing
Finishing temperature is 1082~1095 DEG C；Entry temperature at finishing is 1000~1080 DEG C；Finish rolling finishing temperature is 840~900 DEG C.
Further, roughing roll 6~10 passages, every time deflection between 10~20%, the change of last three passage
Shape amount is between 18~20%；Last percentage pass reduction of finish rolling is not less than 8%, and last two passages cumulative deformation is not less than
20%.
Further, section cooling speed is more than 30 DEG C/s；Coiling temperature is 580~640 DEG C.
Further, in hot continuous rolling step, each temperature parameter is preferably：Heating-up temperature is 1232~1250 DEG C, during soaking
Between be 40~80min；Roughing finishing temperature is 1085~1090 DEG C；Entry temperature at finishing is 1024~1076 DEG C；Finish rolling finish to gauge
Temperature is 852~885 DEG C；Section cooling speed is preferably 42~64 DEG C/s；Coiling temperature is preferably 595~625 DEG C.
Above-mentioned parameter is more preferably：In hot continuous rolling step, heating-up temperature is 1250 DEG C, and soaking time is 65min；Slightly
Finishing temperature is rolled for 1090 DEG C；Entry temperature at finishing is 1070 DEG C；Finish rolling finishing temperature is 880 DEG C；Section cooling speed is 45
℃/s；Coiling temperature is 610 DEG C.
According to the acid-cleaning plate that above-mentioned preparation method is prepared, its tissue morphology is ferrite+a small amount of carbide+a small amount of pearl
Body of light, its grain size number is 11~12 grades, and yield strength is 535~550MPa, and tensile strength is 625~645MPa, is extended
Rate is 22~25%.
Yield strength 500MPa grades low silicon titaniferous acid-cleaning plate disclosed in this invention and preparation method thereof, in composition design
On, in order to ensure material high intensity and high tenacity, while considering its welding performance and forming property, C content control exists
0.06%~0.09%, preferably 0.064~0.086%, more preferably 0.08%；
Mn elements can improve the intensity of steel by solution strengthening, can also expand austenite phase field, reduce overcooling austenite phase
Transition temperature, be conducive to the refinement of phase-change organization, by the content control of Mn elements 0.35~0.80% in the present invention, preferably
It is 0.42~0.76%, more preferably 0.68%, Mn constituent contents are too high to make steel band grain coarsening, too low to reduce the strong of steel
Degree；
Als has very strong affinity with nitrogen and oxygen, and nitrogen agent is determined in deoxidation when being steel-making, additionally, aluminium energy crystal grain thinning, but
When aluminium content exceedes certain value in steel, crystal grain is easily grown up roughening on the contrary, therefore, the present invention is by the content control of aluminium 0.03
~0.06%, preferably 0.032~0.058%, more preferably 0.04%；
Ti is the strong deoxidier in steel, and steel interior tissue can be made fine and closely woven, crystal grain thinning, reduces aging sensitivity and cold short
Property, improving welding property, micro Ti can improve the yield strength of steel, but when Ti/C ratios are more than 4, its intensity and toughness
Drastically decline, therefore, the content of Ti is limited in 0.07~0.09%, preferably 0.074~0.085% by the present invention, more preferably
It is 0.08%；
Si can improve the intensity of solid solution in steel, but the too high levels of silicon can reduce plasticity, toughness and the ductility of steel,
Therefore, the content of Si is limited in less than 0.05%, preferably 0.01~0.05%, more preferably 0.02% by the present invention；
Nb has the effect of crystal grain thinning, the addition of micro Nb can improve yield strength and impact flexibility and the processing of steel
Performance, therefore, the content of Nb is limited in less than 0.010, preferably 0.002~0.008% by the present invention, more preferably
0.005%；
N：Micro N has an effect of solution strengthening, and can improve intensity, low-temperature flexibility and the weldability of steel, but
The too high levels of N in steel, can cause steel macrostructure loose or stomata, therefore, the content of N is limited in 0.004% by the present invention
Hereinafter, preferably 0.001~0.0035%, more preferably 0.0025%；
P、S、O：Be the harmful element in steel, P, S, O element should be as low as possible, but, P, S, O content be down to it is too low, no
Only increase cost, and unobvious to further improving the impact of performance, according to equipment reality, consider, P, S, O element contain
Amount will be strict controlled within parameter area of the present invention.
In technological design, in order that the abundant solid solution of microalloy, by heating and temperature control at 1220~1250 DEG C, during soaking
Between be no less than 40 minutes；For fining austenite grains, roughing rolling pass and deflection in control Hot Strip Rolling；In essence
The further crystal grain thinning of section is rolled, by entry temperature at finishing control at 1000~1080 DEG C；In order to improve the non-recrystallization of precision rolling rear
The effect of area's rolling, accumulation storage can, it is desirable to which last percentage pass reduction of finish rolling is not less than 8%, and last two passages accumulation becomes
Shape amount is not less than 20%, and finish rolling finishing temperature is controlled at 840~900 DEG C, using the thermomechanical controlled rolling techniques of TMCP, is not allowed
Any frame does not apply deflection and empty mistake；In section cooling step, to improve austenite degree of supercooling, crystal grain thinning is adopted
With the cooldown rate more than 30 DEG C/s；And oiler temperature control is interval in the optimal Precipitation Temperature of Nb, Ti element, it is further ensured that
The high intensity and high tenacity of material；In order to improve the efficiency of pickling, increase the finish of belt steel surface, pickling temperature is controlled to
70~80 DEG C, 80~160m/min of pickling speed；The free acid strength of each acid tank is respectively：The free acid strength of 1# acid tanks is 25
The free acid strength of~75g/L, 2# acid tank is 95~145g/L, and the free acid strength of 3# acid tanks is 140~190g/L.
Above-mentioned composition design combines specific technique, and the present invention has obtained a kind of yield strength 500MPa grades low silicon titaniferous
Acid-cleaning plate, trace of Al s, Ti, the addition of Nb not only facilitate crystal grain thinning, and can improve the intensity and processability of steel band
Can, using the composition design of low N, O, microalloying is carried out using Ti, and using the duplex technique of LF+RH stoves, control N, O contain
Amount, improves Ti utilization rates, and using the design of rational coiling temperature, Ti is reached best precipitation effect after the cooling period.This hair
The bright acid-cleaning plate for obtaining has good processing energy, disclosure satisfy that the processing requests such as bending, punching press, additionally, also having good
Surface quality, its credit rating reaches more than FB (02).
Brief description of the drawings
Fig. 1 is the yield strength 500MPa grades low metallographic structure figure of silicon titaniferous acid-cleaning plate that embodiment 1 is obtained.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail
A kind of yield strength 460MPa grades low silicon titaniferous acid-cleaning plate, its chemical composition and percentage by weight are：C 0.06~
0.09%th, Mn 0.35~0.80%, Als 0.03~0.06%, Ti 0.07~0.09%, Si≤0.05%, Nb≤
0.01%th, S≤0.008%, P≤0.015%, N≤0.004%, O≤0.003%, remaining is iron and inevitable impurity.
Prepared using following steps：
Converter smelting -- -- LF stoves are refined, and -- -- -- roll up continuous casting RH application of vacuum ladle argon-blown by hot continuous rolling -- section cooling --
Take -- carry out pickling into continuous pickling line.
Wherein, in hot continuous rolling step, the tapping temperature of heating furnace is 1220~1250 DEG C, and soaking time is no less than
40min；Roughing finishing temperature is 1082~1095 DEG C；Entry temperature at finishing is 1000~1080 DEG C；Finish rolling finishing temperature is 840
~900 DEG C；Roughing rolls 6~10 passages, every time deflection between 10~20%, the deflection of last three passage 18~
Between 20%；Last percentage pass reduction of finish rolling is not less than 8%, and last two passages cumulative deformation is not less than 20%；Using
The thermomechanical controlled rolling techniques of TMCP, do not allow any frame not apply deflection and empty mistake, and hot rolled thickness specification 1.2~
6.0mm.Section cooling speed is more than 30 DEG C/s；Coiling temperature is 580~640 DEG C.In acid cleaning process, pickling temperature be 70~
80 DEG C, 80~160m/min of pickling speed；The free acid strength of each acid tank is respectively：The free acid strength of 1# acid tanks is 25~
The free acid strength of 75g/L, 2# acid tank is 95~145g/L, and the free acid strength of 3# acid tanks is 140~190g/L.
With specific embodiment 1~5, the present invention is described in detail below, yield strength 500MPa grades in each embodiment
The chemical composition and percentage by weight of low silicon titaniferous acid-cleaning plate are shown in Table 1, and processing parameter is shown in Table 2, and mechanical property is shown in Table 3.
The chemical composition and percentage by weight of 500MPa grades low silicon titaniferous acid-cleaning plate in each embodiment of table 1
| C | Mn | Als | Ti | Si | Nb | S | P | N | O | |
| Embodiment 1 | 0.075% | 0.68% | 0.04% | 0.08% | 0.02% | 0.005% | 0.004% | 0.011% | 0.0025% | 0.0015% |
| Embodiment 2 | 0.062% | 0.43% | 0.035% | 0.075% | 0.03% | 0.008% | 0.006% | 0.006% | 0.0035% | 0.0026% |
| Embodiment 3 | 0.073% | 0.57% | 0.55% | 0.084% | 0.047% | 0.003% | 0.002% | 0.008% | 0.0022% | 0.0021% |
| Embodiment 4 | 0.086% | 0.76% | 0.50% | 0.088% | 0.014% | 0.002% | 0.008% | 0.002% | 0.0012% | 0.0018% |
| Embodiment 5 | 0.09% | 0.36% | 0.60% | 0.072% | - | - | 0.005% | 0.005% | 0.0018% | 0.0012% |
The 500MPa grades low processing parameter of silicon titaniferous acid-cleaning plate in each embodiment of table 2
The 500MPa grades low performance parameter of silicon titaniferous acid-cleaning plate in each embodiment of table 3
It is above-mentioned with reference to embodiment a kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate and preparation method thereof to be carried out
Describe in detail, be it is illustrative can include several embodiments according to limited scope rather than limited, therefore not
Depart from changing and modifications under present general inventive concept, should belong within protection scope of the present invention.
Claims (10)
1. a kind of yield strength 500MPa grades low silicon titaniferous acid-cleaning plate, it is characterised in that its chemical composition and percentage by weight are：
C 0.06~0.09%, Mn 0.35~0.80%, Als 0.03~0.06%, Ti 0.07~0.09%, Si≤0.05%, Nb
≤ 0.01%, S≤0.008%, P≤0.015%, N≤0.004%, O≤0.003%, remaining is iron miscellaneous with inevitable
Matter.
2. acid-cleaning plate according to claim 1, it is characterised in that its chemical composition and percentage by weight are：C 0.064~
0.086%th, Mn 0.42~0.76%, Als 0.032~0.058%, Ti 0.074~0.085%, Si 0.01~0.05%,
Nb 0.002~0.008%, S 0.002~0.006%, P 0.002~0.011%, N 0.001~0.0035%, O 0.001
~0.0026%, remaining is iron and inevitable impurity.
3. acid-cleaning plate according to claim 1 and 2, it is characterised in that its chemical composition and percentage by weight are：C
0.075%th, Mn 0.68%, Als 0.04%, Ti 0.08%, Si 0.02%, Nb 0.005%, S 0.004%, P
0.011%th, N 0.0025%, O 0.0015%, remaining is iron and inevitable impurity.
4. the preparation method of acid-cleaning plate according to claim 1, it is characterised in that the preparation method includes following step
Suddenly：-- -- -- -- -- -- section cooling -- batching -- enters hot continuous rolling continuous casting RH application of vacuum the refining of LF stoves ladle argon-blown converter smelting
Entering continuous pickling line carries out pickling；Pickling temperature is 70~80 DEG C, 80~160m/min of pickling speed；Each acid tank dissociates acid solution
Concentration is respectively：The free acid strength of 1# acid tanks is 25~75g/L, and the free acid strength of 2# acid tanks is 95~145g/L, 3# acid
The free acid strength of groove is 140~190g/L.
5. preparation method according to claim 4, it is characterised in that in hot continuous rolling step, heating-up temperature is 1220~
1250 DEG C, soaking time is no less than 40min；Roughing finishing temperature is 1082~1095 DEG C；Entry temperature at finishing be 1000~
1080℃；Finish rolling finishing temperature is 840~900 DEG C.
6. preparation method according to claim 5, it is characterised in that roughing rolls 6~10 passages, every time deflection exists
Between 10~20%, the deflection of last three passage is between 18~20%；Last percentage pass reduction of finish rolling is not less than
8%, last two passages cumulative deformation is not less than 20%.
7. preparation method according to claim 4, it is characterised in that section cooling speed is more than 30 DEG C/s；Coiling temperature
It is 580~640 DEG C.
8. the preparation method according to claim 4-7 any one, it is characterised in that in hot continuous rolling step, heating-up temperature
It it is 1232~1250 DEG C, soaking time is 40~80min；Roughing finishing temperature is 1085~1090 DEG C；Entry temperature at finishing is
1024~1076 DEG C；Finish rolling finishing temperature is 852~885 DEG C；Section cooling speed is 42~64 DEG C/s；Coiling temperature is 595
~625 DEG C.
9. the preparation method according to claim 4-7 any one, it is characterised in that in hot continuous rolling step, heating-up temperature
It it is 1250 DEG C, soaking time is 65min；Roughing finishing temperature is 1090 DEG C；Entry temperature at finishing is 1070 DEG C；Finish rolling finish to gauge temperature
Spend is 880 DEG C；Section cooling speed is 45 DEG C/s；Coiling temperature is 610 DEG C.
10. the acid-cleaning plate that preparation method according to claim 4 is prepared, it is characterised in that the group of the acid-cleaning plate
It is ferrite+a small amount of carbide+a small amount of pearlite to knit form, and its grain size number is 11~12 grades, yield strength is 535~
550MPa, tensile strength is 625~645MPa, and elongation percentage is 22~25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192250.3A CN106834949B (en) | 2017-03-28 | 2017-03-28 | A kind of yield strength 500MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192250.3A CN106834949B (en) | 2017-03-28 | 2017-03-28 | A kind of yield strength 500MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106834949A true CN106834949A (en) | 2017-06-13 |
| CN106834949B CN106834949B (en) | 2019-02-26 |
Family
ID=59141562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710192250.3A Active CN106834949B (en) | 2017-03-28 | 2017-03-28 | A kind of yield strength 500MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106834949B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369528A (en) * | 2019-07-09 | 2019-10-25 | 张家港扬子江冷轧板有限公司 | A method of improving DC01 strip pickling speed |
| CN112391579A (en) * | 2020-11-09 | 2021-02-23 | 河钢股份有限公司承德分公司 | Steel for solar bracket with tensile strength of 500MPa and production method thereof |
| CN112391580A (en) * | 2020-11-09 | 2021-02-23 | 河钢股份有限公司承德分公司 | Titanium-reinforced 500 MPa-grade galvanized sheet hot-rolled base material and production method thereof |
| CN114182182A (en) * | 2020-09-14 | 2022-03-15 | 上海梅山钢铁股份有限公司 | Hot-rolled pickled steel plate for refrigerator compressor shell and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343677A (en) * | 2008-09-01 | 2009-01-14 | 湖南华菱涟源钢铁有限公司 | Production method of low-silicon low-carbon deep drawing steel |
| CN102199723A (en) * | 2010-03-25 | 2011-09-28 | 宝山钢铁股份有限公司 | High-strength cold-rolled hot-galvanized precipitation reinforced steel and manufacturing method thereof |
| CN105256323A (en) * | 2015-11-04 | 2016-01-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous acid pickling method for hot-rolled dual-phase steel |
-
2017
- 2017-03-28 CN CN201710192250.3A patent/CN106834949B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343677A (en) * | 2008-09-01 | 2009-01-14 | 湖南华菱涟源钢铁有限公司 | Production method of low-silicon low-carbon deep drawing steel |
| CN102199723A (en) * | 2010-03-25 | 2011-09-28 | 宝山钢铁股份有限公司 | High-strength cold-rolled hot-galvanized precipitation reinforced steel and manufacturing method thereof |
| CN105256323A (en) * | 2015-11-04 | 2016-01-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous acid pickling method for hot-rolled dual-phase steel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369528A (en) * | 2019-07-09 | 2019-10-25 | 张家港扬子江冷轧板有限公司 | A method of improving DC01 strip pickling speed |
| CN114182182A (en) * | 2020-09-14 | 2022-03-15 | 上海梅山钢铁股份有限公司 | Hot-rolled pickled steel plate for refrigerator compressor shell and manufacturing method thereof |
| CN112391579A (en) * | 2020-11-09 | 2021-02-23 | 河钢股份有限公司承德分公司 | Steel for solar bracket with tensile strength of 500MPa and production method thereof |
| CN112391580A (en) * | 2020-11-09 | 2021-02-23 | 河钢股份有限公司承德分公司 | Titanium-reinforced 500 MPa-grade galvanized sheet hot-rolled base material and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106834949B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109865742B (en) | Production method of thin hot-rolled pickled automobile plate with tensile strength of 440MPa | |
| CN109097705A (en) | A kind of 800MPa grade cold rolling hot dip galvanizing dual phase steel and its production method | |
| CN106967926B (en) | A kind of yield strength 460MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof | |
| CN104651734B (en) | 1000MPa grade high-strength high-ductility medium managese steel containing aluminum and its manufacture method | |
| CN110055458B (en) | Production method of hot-rolled pickled automobile plate | |
| CN111455282B (en) | Quenching distribution steel with tensile strength more than or equal to 1500MPa produced by adopting short process and method | |
| CN109778062B (en) | Cold-rolled complex phase steel with tensile strength of 1200MPa and preparation method thereof | |
| CN106282791B (en) | Low internal stress steel plate for automobile axle housing and its production method | |
| CN107502819B (en) | A kind of 600MPa grades of 0.6mm or less thin gauge cold-rolled biphase steel and preparation method thereof | |
| CN107779743A (en) | Micro- carbon hot rolling acid-cleaning steel plate and its manufacture method with good deep drawability | |
| CN106319329A (en) | Method for producing cold rolling hard tinning steel plate | |
| CN106591716A (en) | Automobile beam steel with high toughness and tensile strength of 750 MPa, and production method thereof | |
| CN102199732B (en) | Boron containing steel plate for heat treatment and manufacturing method thereof | |
| CN106834949B (en) | A kind of yield strength 500MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof | |
| CN105401090B (en) | A kind of precision stamping automotive seat regulation tooth plate cold-rolled steel sheet and its manufacture method | |
| CN110592348A (en) | Ultra-low carbon cold rolled steel performance grading control method | |
| CN109487153A (en) | A kind of tensile strength 440MPa grades high reaming hot rolling acid-cleaning steel plate | |
| CN106636911A (en) | 900MPa hot rolling sheet steel formed by directly rolling sheet billets and manufacturing method thereof | |
| CN109023105A (en) | A kind of vehicle structure hot-strip and manufacturing method | |
| CN101818299A (en) | High-strength thin-specification direct-plating steel based on thin slab casting and rolling process and making method thereof | |
| CN100560773C (en) | A kind of high-strength anti-fatigue steel products and manufacture method thereof | |
| CN109943765B (en) | 800 MPa-grade cold-rolled dual-phase steel with high yield ratio and preparation method thereof | |
| CN105925905A (en) | Nb-Ti-series 780MPa-class hot-rolled dual-phase steel and production method thereof | |
| CN106868408B (en) | A kind of yield strength 550MPa grades of low silicon titaniferous acid-cleaning plates and preparation method thereof | |
| CN114045441B (en) | Reinforced plastic dual-phase steel for 800 MPa-level continuous annealing and preparation method thereof |
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 |