CN106868401A - A kind of Low Defectivity bottle cap tinplate base-material and minimizing production technology - Google Patents
A kind of Low Defectivity bottle cap tinplate base-material and minimizing production technology Download PDFInfo
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- CN106868401A CN106868401A CN201710171347.6A CN201710171347A CN106868401A CN 106868401 A CN106868401 A CN 106868401A CN 201710171347 A CN201710171347 A CN 201710171347A CN 106868401 A CN106868401 A CN 106868401A
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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
- 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
- C21D8/0242—Flattening; Dressing; Flexing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- 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 Steel (AREA)
Abstract
A kind of Low Defectivity bottle cap tinplate base-material and minimizing production technology, belong to steel-making technical field of steel rolling.Bottle cap base steel material chemical Composition Control scope, by weight percentage, C：0.05~0.08%, Mn：0.60~0.75%, Si：≤ 0.015%, S≤0.020%, P≤0.020%, Al：0.025~0.040%, As：≤ 0.008%, N≤0.003%, O≤0.003%, remaining is iron and inevitable impurity.By the peritectoid area for limiting carbon chemical analysis control range to avoid continuous casting; and by improving manganese element control targe; the solution strengthening compensated caused by carbon drop is not enough; vacuum refining is replaced to ensure steel cleanliness factor with wash heat after stove and atm number Argon; by using chamfer crystallizer and specific covering slag, cc billet surface quality is ensured.RH vacuum refining operations are eliminated, more preferable finished product quality of edges is obtained.
Description
Technical field
The invention belongs to make steel technical field of steel rolling, more particularly to a kind of Low Defectivity bottle cap tinplate base-material and decrement
Metaplasia production. art, bottle cap base steel material edge linear defect is solved by steel-making continuous casting.
Background technology
1. bottle cap tinplate production technology of base stock complexity, technological difficulties are more, and each operation can all influence its performance and table
Face quality.The requirement one of bottle cap steel technical conditions is the warping resistance power based on cold rolled annealed smooth rear product, and professional standard will
Ask in the range of 120~145N；Two is that surface quality does not allow the presence of macroscopic various defects, and especially edge is being cut out
Side, it is cold rolling after do not allow caused by base-material stress concentration or internal flaw macroscopic defect.
2. the mechanical property of substrate determines the mechanical property of bottle cap, and the factor of influence substrate mechanical property has the change of substrate
Study point, rolling mill practice.Chemical composition is the factor for influenceing material property, produces steel grade and its chemical composition used by tinplate,
All it is not specified by the tin plate product standard of countries in the world.
3. the ferrous materials for making bottle cap now are substantially peritectic steel, are 0.08≤w (C)≤0.13%, 0.45%≤w
(Mn)≤0.55%, while S≤0.010%, there is lobe in the aluminum killed steel of P≤0.020%, this composition production continuous casting billet
Probability is high, and the cosmetic issue for bringing is genetic to cold rolling process, makes the percent defective of cold rolling production high.Northeastern University's material adds within 2011
Work Engineering Speciality master thesis《The influence of production technology bottle cap tinplate tissue and performance》Pass through Deng being proposed in document
0.08≤w (C)≤0.13%, 0.45%≤w (Mn)≤0.55% in steel, Ti of Jia 0.03% or so, from 870 DEG C of finish to gauge temperature
Degree, 560 DEG C of coiling temperatures, cold rolling reduction ratio are 89%~91%, and annealing temperature is 550 DEG C, temper pressure amount is 0.06mm, can
The substrate of ideal performance indications, but the interval steel of this composition are obtained still in peritectoid area, continuous casting control is difficult, table still easily occurs
Facial cleft line, and strip anisotropy increases and production cost increases to add Ti to cause.The present invention proposes to press the main component of steel
0.06%≤w (C)≤0.08%, 0.60%≤w (Mn)≤0.75%, w (Si)≤0.015% controls, and crystallized using chamfering
Device, mould flux improve slab quality to ensure substrate quality of edges level, hot rolled plate by 875~900 DEG C of finish to gauges, 535~
560 DEG C of technology controlling and process batched, when cold rolling process is produced, cold rolling reduction ratio is 89~91% to the cold rolling base for being produced, and is moved back
Fiery temperature is 560 DEG C, smooth relative reduction ratio was 10~25% (smooth absolute pressure strength is about 0.04~0.08mm), can be obtained
The substrate of ideal performance index.The present invention in relatively low w (C), suitable w (Mn), does not add w (Ti) around the thought of " dropping this upgrading "
And the physical performance index of bottle cap iron is met under finishing temperature high, the technical measures of low coiling temperature.
The content of the invention
1. it is an object of the invention to provide a kind of Low Defectivity bottle cap minimizing production technology of tinplate base-material, root
According to the equipment condition at scene, around the thinking of Resource regeneration, make meet the technique of bottle cap performance indications and surface quality will
Point, reaches the technical requirements of bottle cap tinplate base-material.Compared with traditional design, model is controlled by limiting carbon chemical analysis
Enclose to avoid the peritectoid area of continuous casting, and by improving manganese element control targe, the solution strengthening compensated caused by carbon drop is not enough,
Vacuum refining is replaced to ensure steel cleanliness factor with wash heat after stove and atm number Argon, by using chamfer crystallizer and specific guarantor
Shield slag, ensures cc billet surface quality, for the finished product quality of edges for obtaining qualified creates condition.Avoid for needed for acquisition into
Product intensity and have to using peritectoid area composition design, cause strand longitudinal crack incidence to improve influence finished product lumber recovery to ask
Topic, while eliminating RH vacuum refining operations, obtains more preferable finished product quality of edges.
Bottle cap base steel material chemical Composition Control scope of the invention, by weight percentage, C：0.05~0.08%, Mn：
0.60~0.75%, Si：≤ 0.015%, S≤0.020%, P≤0.020%, Al：0.025~0.040%, As：≤
0.008%, N≤0.003%, O≤0.003%, remaining is iron and inevitable impurity.
Carbon plays solution strengthening effect in steel, is cheap intensified element, but carbon content ＞ 0.080~
During 0.130% scope, there is metatectic transformation in green shell process of setting, causes strand that Longitudinal Surface Cracks probability occurs and increases, and exceed
0.13%, it is cold rolled annealed after, the pearlite and free cementite ratio in steel are high, and can drop to the plasticity of steel cannot meet punching
The requirement of pressure bottle lid.
Present invention selection carbon content control scope is not more than 0.08%, avoids steel and peritectoid turn occurs in casting process
Become, and make the plasticity of steel when carbon content is in ＞ 0.08~0.13% compared to further raising.And when carbon is less than 0.06%, by force
Change effect deficiency is, it is necessary to more expensive alloying element carries out reinforcing compensation.To make carbon still play enough solution strengthening effects, selection
The lower limit of carbon is to be not less than 0.06%.It is thus determined that the content range of carbon is 0.06~0.08%.
Manganese element plays solid solution in steel, can improve the intensity of steel, while forming MnS in steel so as to reduce steel
Red brittleness, offsets the slab surface crack problem that S elements bring, and improves the hot-working character of steel.In the present invention, in carbon content
When control is in the range of 0.06~0.08%, during by manganese content control more than 0.60%, it has been enough to ensure final products
Using index request.And when Mn contents are more than 0.75%, in cold rolled annealed rear smooth rear obtained finished product warping resistance intensity
It is too high, beyond the claimed range of application index.It is thus determined that the content range of Mn elements is 0.60~0.75%.
The process step of the invention and the technical parameter of control are as follows：
(1) deslagging process after Converter：Tapping process is added and washes material, by weight percentage, CaO containing aluminium slag after stove：62
~68%, SiO2：≤ 2%, Al2O3：24~28%, Al：6~8%, MgO：≤ 2%, S：≤ 0.3%, H2O：≤ 0.5%, grain
Degree：5~30mm, ＜ 5mm granularities ratio are less than 10%.Tapping process blowing argon gas, flow is controlled in 90-110L/min, in making steel
Deoxidation products Al2O3 and Al in wash heat material is gathered into more than 15 μm particles floating removals；Argon station Argon pressure 0.5MPa, with steel
Exposed diameter≤the 200mm of bag liquid level is defined.
(2) chamfer crystallizer is used：Chamfer crystallizer back draught scope is 1.28%~1.35%；Use privacy protection
Slag, its characteristic index is basicity：1.13~1.14, fusing point：1107~1112 DEG C, viscosity：0.10~0.12Pa.S, it is 22 to melt speed
~24Kg/m2*s.Composition by weight percentage, SiO2：27~29%；CaO：30~32%；MgO：1.5~2.0%；
Fe2O3：0.50~0.80%；Al2O3：4.0~5.0%, F：7~8%；C：7~8%.
(3) finishing temperature：Finishing temperature control is at 875~900 DEG C.
(4) coiling temperature and refrigerating mode：Oiler temperature control is at 535~560 DEG C.
(5) cold rolling after pickling, annealing, smooth, cold rolling reduction ratio is 89~91%, and annealing temperature is 550 DEG C, relative pressure
Rate was 10~25% (smooth absolute pressure strength is about 0.04~0.08mm).
Aluminum deoxidation during converter tapping, can produce deoxidation products Al2O3.To make deoxidation products Al2O3Fully removing, is going out
The material of wash heat containing Al further added during steel.Wash heat material is floated to after being sufficiently stirred for molten steel during flowing into tank with steel
Molten steel top layer, forms the slag blanket with suction-operated.Containing 6~8% Al in wash heat material, enough reproducibilities are maintained, contained
Al2O3Particle, as absorption new life Al2O3Core, with newborn Al2O3Collision, with reference to, grow up after, in atm number argon bottom-blowing
In the presence of stream, molten steel face is floated to, and adsorbed by top layer slag.Sulfide is also further combined with CaO, is adsorbed by slag blanket.
Using chamfer crystallizer, straightening section strand corner temperature is improved, make strand that aligning is avoided the occurrence of in straightening process
Transverse crack.But using after chamfer crystallizer, because of the presence of tangent plane, the increase of edge frictional force, discontinuity at tangent plane, in tangent plane
And easily there is longitudinal corner crack in adjacent bit.Therefore larger mould reverse taper is selected, and the frictional force of copper coin and strand is reduced, will
Mould reverse taper is set to be not less than 1.28%, can completely inhibit the generation of tangent plane edge longitudinal crack.Excessive then solidified shell with
Crystallizer gap is big, mouth serious wear under crystallizer.So it is 1.28~1.35% to select its control range.
Compared with traditional handicraft, SiO in covering slag is reduced2Content, the dual alkalinity of the covering slag that improve, improve
The viscosity of covering slag；The molten speed of covering slag is 22~24Kg/m2* s, controls slag layer thickness in 30~40mm, and slag is consumed 0.5
~0.6kg/t.The viscosity and molten speed of covering slag are improved, makes the reduction of its vitreum ratio, crystallization temperature and heat transfer property reduction, made
Initial solidification shell uniform force, suppresses initial solidification shell crackle and occurs.
Steel of the present invention is carbon aluminium-killed steel, expects certain punching performance, and finishing temperature is higher than 875 DEG C, coiling temperature
During less than 560 DEG C, AlN can be suppressed and separated out in hot rolling and coiling process, beneficial to the punching performance after cold rolled annealed.Finishing temperature
During higher than 910 DEG C, the surface of steel is easy to produce three iron scales, and pit defect occurs in surface after causing pickling, so determining
The finishing temperature control scope of steel is 875~910 DEG C, and when coiling temperature is less than 535 DEG C, the crystal grain of base-material is meticulous, cold rolling
Drag increases, and energy consumption increases excessive, so oiler temperature control scope is 535~560 DEG C.
3. compared with prior art, the beneficial effects of the invention are as follows：
Replace the invigoration effect of carbon with manganese, and avoid steel metatectic transformation occurs in casting process, continuous casting is using falling
Angle crystallizer and mould flux, slab surface crack incidence are reduced to less than 1.2%, and cold rolling finished product warping resistance power is 120
The ratio of~140N scopes brings up to 90% by initial 80%, improves the lumber recovery of product, reduces production cost.The hair
After bright implementation, monthly bottle cap is increased with the order of tinplate base-material, has widened the market share, and product profit increases.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail：
The specific embodiment contrast of chemical Composition Control, to the bottle cap strip chemical Composition Control model of tinplate base-material
Enclose as shown in table 1,
The bottle cap of the table 1 strip chemical Composition Control scope (balance of Fe and inevitable impurity) of tinplate base-material
Finally illustrate, the foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the invention,
Although being described in detail to the present invention with reference to preferred embodiment, it will be understood by those within the art that, can be right
Technical scheme carries out modification or equivalent in parameter area, without deviating from the objective of technical solution of the present invention
And scope, it all should cover in the middle of scope of the presently claimed invention.
Claims (2)
1. a kind of Low Defectivity bottle cap tinplate base-material, it is characterised in that chemical composition is by weight percentage, C：0.05
~0.08%, Mn：0.60~0.75%, Si：≤ 0.015%, S≤0.020%, P≤0.020%, Al：0.025~
0.040%, As：≤ 0.008%, N≤0.003%, O≤0.003%, remaining is iron and inevitable impurity.
2. the minimizing production technology of tinplate base-material of the Low Defectivity bottle cap described in a kind of claim 1, it is characterised in that
Processing step and the technical parameter of control are as follows：
Tapping process is added and washes material, by weight percentage, CaO containing aluminium slag after the ﹚ stoves of ﹙ 1：62~68%, SiO2：≤ 2%,
Al2O3：24~28%, Al：6~8%, MgO：≤ 2%, S：≤ 0.3%, H2O：≤ 0.5%, granularity：5~30mm, ＜ 5mm
Degree ratio is less than 10%；Tapping process blowing argon gas, flow is controlled in 90-110L/min, makes deoxidation products Al2O3 and wash heat in steel
Al is gathered into more than 15 μm particles floating removals in material；Argon station Argon pressure 0.5MPa, with the exposed diameter of ladle liquid level≤
200mm is defined；
The ﹚ of ﹙ 2 use chamfer crystallizer：The back draught of chamfer crystallizer is 1.28~1.35%；And mould flux is used, it is special
Property index be basicity：1.13~1.14, fusing point：1107~1112 DEG C, viscosity：0.10~0.12Pa.S, it is 22~24Kg/ to melt speed
m2*s；Composition by weight percentage, SiO2：27~29%；CaO：30~32%；MgO：1.5~2.0%；Fe2O3：0.50~
0.80%；Al2O3：4.0~5.0%, F：7~8%；C：7~8%；
The ﹚ hot rolling finishing temperatures of ﹙ 4：Finishing temperature control is at 875~900 DEG C；
The ﹚ coiling temperatures of ﹙ 5 and refrigerating mode：Oiler temperature control is at 535~560 DEG C；
(6) it is cold rolling after pickling, annealing, it is smooth, cold rolling reduction ratio be 89~91%, annealing temperature be 550 DEG C, temper pressure amount be
0.04~0.08mm, reduction ratio is 10~25%.
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| CN201710171347.6A CN106868401B (en) | 2017-03-21 | 2017-03-21 | A kind of Low Defectivity bottle cap tinplate base-material and minimizing production technology |
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| CN201710171347.6A CN106868401B (en) | 2017-03-21 | 2017-03-21 | A kind of Low Defectivity bottle cap tinplate base-material and minimizing production technology |
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| CN106868401B CN106868401B (en) | 2018-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872672A (en) * | 2019-10-23 | 2020-03-10 | 河钢股份有限公司承德分公司 | Method for smelting food-grade tinplate base material by using vanadium-titanium-containing molten iron |
| CN113462952A (en) * | 2021-07-22 | 2021-10-01 | 西安建筑科技大学 | Super-pure tinplate and preparation method thereof |
| CN114480946A (en) * | 2020-11-12 | 2022-05-13 | 上海梅山钢铁股份有限公司 | Production method of low-aluminum peritectic steel molten steel |
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| JP2007197742A (en) * | 2006-01-24 | 2007-08-09 | Nippon Steel Corp | Cold rolled steel sheet for welded can, and its manufacturing method |
| CN102554164A (en) * | 2012-02-29 | 2012-07-11 | 首钢总公司 | Continuous casting covering slag effectively applicable to plate blank chamfering crystallizer |
| CN103270183A (en) * | 2010-12-01 | 2013-08-28 | 杰富意钢铁株式会社 | Steel sheet for can, and process for producing same |
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| CN104057052A (en) * | 2014-07-04 | 2014-09-24 | 秦皇岛首秦金属材料有限公司 | Continuous casting technology suitable for chamfering crystallizer stable production |
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| JP2007197742A (en) * | 2006-01-24 | 2007-08-09 | Nippon Steel Corp | Cold rolled steel sheet for welded can, and its manufacturing method |
| CN103270183A (en) * | 2010-12-01 | 2013-08-28 | 杰富意钢铁株式会社 | Steel sheet for can, and process for producing same |
| CN102554164A (en) * | 2012-02-29 | 2012-07-11 | 首钢总公司 | Continuous casting covering slag effectively applicable to plate blank chamfering crystallizer |
| CN103320685A (en) * | 2012-03-22 | 2013-09-25 | 上海梅山钢铁股份有限公司 | Hard tinned sheet steel and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872672A (en) * | 2019-10-23 | 2020-03-10 | 河钢股份有限公司承德分公司 | Method for smelting food-grade tinplate base material by using vanadium-titanium-containing molten iron |
| CN114480946A (en) * | 2020-11-12 | 2022-05-13 | 上海梅山钢铁股份有限公司 | Production method of low-aluminum peritectic steel molten steel |
| CN113462952A (en) * | 2021-07-22 | 2021-10-01 | 西安建筑科技大学 | Super-pure tinplate and preparation method thereof |
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| Publication number | Publication date |
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| CN106868401B (en) | 2018-10-12 |
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