CN110273106A - A kind of 260MPa grades of cold-rolling continuous annealing glassed steel and its production method - Google Patents
A kind of 260MPa grades of cold-rolling continuous annealing glassed steel and its production method Download PDFInfo
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- CN110273106A CN110273106A CN201910695996.5A CN201910695996A CN110273106A CN 110273106 A CN110273106 A CN 110273106A CN 201910695996 A CN201910695996 A CN 201910695996A CN 110273106 A CN110273106 A CN 110273106A
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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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- 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
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- 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
- C21D2211/004—Dispersions; Precipitations
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- 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
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- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The present invention provides a kind of 260MPa grades of cold-rolling continuous annealing glassed steel and its production methods, the 260MPa grades of cold-rolling continuous annealing glassed steel includes the chemical component of following weight percent: C:0.020~0.060%, Si≤0.030%, Mn:0.020%~0.60%, P≤0.020%, S≤0.010%, Al:0.020~0.060%, B:0.0015~0.0040%, N:0.0040~0.0100%, remaining is Fe and inevitable impurity element.For the present invention by reasonable Design of Chemical Composition, thin slab continuous casting and rolling, cold rolling, continuous annealing process, smooth process produce a kind of water heater liner cold rolling glassed steel of 260MPa intensity rank.The cold-rolled steel sheet according to said method produced, microscopic structure are ferrite+diffusion carbide, yield strength >=260MPa of mechanical property, tensile strength >=360MPa, elongation percentage A50>=35%, it can satisfy intensity and processability requirement of the hot water liner to steel plate；After the application of slip of single side wet process, surface of steel plate glaze layer does not generate fishscale, has preferable adhesion property, and economy is high.
Description
Technical field
The invention belongs to cold rolling glassed steel technical fields, and in particular to a kind of 260MPa grades of cold-rolling continuous annealing glassed steel and its life
Production method.
Background technique
Enamelled pressed steel has become well-known both at home and abroad because its high corrosion resistance is widely used in water heater liner manufacturing field
Water heater manufacturing enterprise first choice liner variety steel.
The glassed steel of steel mill, country production at present mostly uses hot rolling production method under traditional slab continuous casting process, traditional continuous casting
The basic process of tandem rolling is that molten steel is casting continuously to form to the slab of 200-250mm thickness to be cooled to room temperature or to 600 DEG C or so hot delivery and hot chargings,
Be reheated to austenite high-temperature region again, subsequently by roughing mill and mm finishing mill unit at Continuous mill train roll into wide flat steel, steel
What material was undergone in this technical process mutually becomes γ → α → γ → α, and slab is before the rolling, needs to add for a long time in heating furnace
Heat, the consumption energy is big, at high cost.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of 260MPa grades of cold-rolling continuous annealing glassed steel and its producers
Method.By reasonable Design of Chemical Composition, cooperate thin slab continuous casting and rolling (CSP technique), cold rolling, continuous annealing, flattening process,
Producing one kind has excellent mechanical property performance, application of slip performance and the higher cold-rolled steel sheet of economy, can satisfy water heater
The glassed steel of the production requirement of liner.
The technical scheme adopted by the invention is as follows:
A kind of 260MPa grades of cold-rolling continuous annealing glassed steel, the chemical component including following weight percent: C:0.020~
0.060%, Si≤0.030%, Mn:0.020%~0.60%, P≤0.020%, S≤0.010%, Al:0.020~
0.060%, B:0.0015~0.0040%, N:0.0040~0.0100%, remaining is Fe and inevitable impurity element.
Further, it is preferable to be the chemical component for including following weight percent: C:0.046~0.053%, Si0.008
~0.014%, Mn:0.042%~0.56%, P≤0.010%, S≤0.0064%, Al:0.032~0.038%, B:
0.0021~0.0036%, N:0.0074~0.0086%, remaining is Fe and inevitable impurity element.
Above-mentioned each chemical Composition Control is as follows:
C:C is to improve that intensity is most economical and most effective solution strengthening element, C content increase, and the pearlite of formation increases,
Intensity increases, but the plasticity of steel and formability reduce, and unfavorable to weldability, and in addition C content is excessively high, during enamel firing, meeting
A large amount of bubble is generated, needle pore defect occurs after leading to enamel firing, therefore consider from economy and comprehensive performance, C hundred in the present invention
Dividing content control range is 0.020~0.060%, preferably 0.046~0.053%.
Si:Si too high levels, steel surface iron oxide scale are not easy to remove, surface it is easy to form due to oxide indentation it is micro-
Crackle, and then easily lead to steel plate in cold forming process as formation of crack and crack, therefore Si percentage composition controls model in the present invention
Enclosing is≤0.030%, preferably≤0.014%.
Mn:Mn can reduce austenite and be transformed into ferritic phase transition temperature, expand hot processing temperature range, be conducive to refine
Ferrite grain size, Mn are the effective elements of weld seam Strengthening and Toughening, are conducive to deoxidation in weld seam, prevent the iron for causing fire check
The formation of sulfide, but Mn too high levels, slab Mn degree of segregation in continuous casting process increase, the easy shape in steel plate thickness centre
At pearlite or bainite banded structure, banded structure this for high strength steel easily leads to lamination defect, while being also fatigue
The crackle originating point of destruction, it is all unfavorable to plasticity, welding performance, fatigue behaviour.Comprehensively consider, Mn percentage composition control in the present invention
Range processed is 0.20~0.60%, preferably 0.042%~0.56%.
Diffusion velocity of the P:P in γ-Fe and α-Fe is small, easily forms segregation, increases the cold brittleness of steel, become welding performance
It is bad, reduce plasticity, so that cold-bending property is deteriorated, the present invention in P percentage composition control 0.020% hereinafter, preferably 0.010 with
Under.
S:S content large-sized manganese sulfide easy to form when higher significantly reduces the plasticity and toughness of steel plate, vulcanizes in steel
Object also will affect weld metal low-temperature impact toughness and application of slip adhesion property.In the present invention S percentage composition control 0.010% with
Under, preferably 0.0064 or less.
Al:Al is able to suppress the generation of other oxides as main deoxidier, but the moulding of aluminium oxide is poor, largely
Alumina inclusion can damage the processability of steel plate.Al percentage composition control range is 0.020~0.060% in the present invention, preferably
It is 0.032~0.038%.
Main function of the B:B in phase transformation strengthening steel is to improve harden ability, solubility very little of the B in steel, a small amount of B pairs
The hardness generation of steel has a great impact, and micro B can largely improve the mechanical property of steel.BN is at crystal boundary and phase boundary
The quantity of the hydrogen trap in glassed steel can be obviously increased, enamelling sheet steel performance is improved.B element is resourceful, cheap, in steel
The alloying element of other valuableness can be saved significantly on by adding micro B element, there is considerable economic benefit.Although boron has played in steel
The effect of benefit, but when B content is excessively high, is easy to produce crackle in continuous casting process on slab.B percentage composition controls in the present invention
Range is 0.0015~0.0040%, preferably 0.0021~0.0036%.
N:N is solid solution element, and compound BN is beneficial for the fish scaling resistance for improving steel.If N content is excessively high, formation
The amount of nitride is also high, and particle becomes thick, and can seriously damage the plasticity of steel.N percentage composition control range in the present invention
For 0.0040-0.0100%, preferably 0.0074~0.0086%.
The metallographic structure of the 260MPa grades of cold-rolling continuous annealing glassed steel is ferrite+diffusion carbide；Its yield strength >=
260MPa, tensile strength >=360MPa, elongation percentage A50>=35%, specially its yield strength >=270~285MPa, tensile strength
375~385MPa, elongation percentage A50>=35%.
The present invention also provides the production method of 260MPa grade cold-rolling continuous annealing glassed steel, the preparation method includes
Following steps: molten iron pretreatment, converter smelting, alloy finely tune, the refining of RH furnace, continuous casting and rolling, batch, cold continuous rolling, degreasing, continuous
It anneals, is smooth.
In molten iron pre-treatment step, the processing of removal impurity element, including iron are done to the molten iron before entering converter smelting
Water desiliconization, desulfurization, dephosphorization improve the degree of purity of molten iron.
In converter smelting step, oxidation reaction occurs for the molten iron for being blown into oxygen and high temperature, removes impurity.
In alloy trim step, BOTTOM ARGON BLOWING is carried out to ladle, accelerates molten steel medium motion, promotes molten steel composition and temperature equal
Even distribution, and the impurity of molten steel is reduced by chemically reacting, clean molten steel.
In RH furnace refinement step, after RH vacuum circulation degassing essence, molten steel energy Quick uniform mixing, alloying component be can control
Within the scope of narrow, gas content is low, and field trash is few, and Molten Steel Cleanliness is high, can also carry out chemical heating with top gun
Temperature adjustment provides the molten steel that good fluidity, degree of purity are high, meet cast temperature for conticaster.
In the continuous casting and rolling step, pony roughing mill is omitted, steel billet thickness control is in 65mm-90mm before rolling, preferably
For 65~75mm, to guarantee that omission pony roughing mill is directly entered the slab critical thickness of mm finishing mill unit, the thickness of sheet billet is than normal
Straightedge base want it is thin very much.
Front spring heating and temperature control is rolled in 1050 DEG C~1150 DEG C, preferably 1128~1138 DEG C, rolling, steel plate
If temperature is low in Ar3, hot rolled coil interior tissue will appear mixed crystal；And if slab temperature be higher than 1150 DEG C when, coil of strip surface
Interior tissue is extremely coarse and scale on surface defect is serious.
Finishing temperature control need to be higher than Ar in 860 DEG C~960 DEG C, preferably 892~912 DEG C, finishing temperature3, avoid steel
Roll out existing mixed grain structure；Finishing temperature is not above 960 DEG C, otherwise as the temperature rises, the tendentiousness of crystal grain agglomeration
Just stronger, obtained coil of strip crystal grain is also just coarseer.
It in the continuous casting and rolling step, is cooled down using section cooling mode, cooling water is tightly attached to belt steel surface by one
Determine direction and do macroscopic motion, cooling water is constantly updated, and takes away a large amount of heat to reach cooling purpose, good cooling results.
Described to batch in step, for oiler temperature control in 600 DEG C~650 DEG C, preferably 632~648 DEG C, coiling temperature can
Control the amount and form of hot-strip crystal grain diameter, precipitate.
In the cold continuous rolling step, cold rolling total reduction control >=70%, preferably 80%, reduction ratio is bigger, after annealing
Grain size is smaller and Δ r value declines, conducive to the forming property of steel plate.
In the continuous annealing step, annealing soak temperature is controlled at 730 DEG C~780 DEG C, preferably 754 DEG C~763 DEG C,
Soaking time controls 90~150s.
In the planarization step, whole elongation control is bent 0.6~1.2%, preferably 1.0~1.1% with eliminating steel plate
Take platform and control panel shape.
260MPa grades of cold-rolling continuous annealing glassed steel provided by the invention when carrying out the application of slip, after the application of slip firing temperature be 800~
860℃；Firing time is 4-8min, then cooled to room temperature.
In the preparation method of 60MPa grades of cold-rolling continuous annealing glassed steel provided by the invention, using continuous casting and rolling technique into
The production and rolling of row slab, under continuous casting and rolling CSP technique, molten steel is cast the sheet billet of 65~90mm thickness by continuous casting, directly into
Enter roller bottom continuous tunnel furnace after 1050 DEG C~1150 DEG C temperature soaking, is directly entered mm finishing mill unit and rolls into wide flat steel, specific surface area
4 times bigger than conventional plate blank or so, therefore latent heat quick release, cooling velocity is fast, and the precipitate in steel billet is more tiny
Disperse will form more " hydrogen traps ", be conducive to enamel.In CSP production process, from smelting molten steel, it is cast to hot-rolling plate
It is offline to be rolled into product, only 1.5h, slab experienced by high temperature to low temperature, by the unidirectional change procedure of γ → α, connect relative to traditional slab
Casting process, production method provided by the invention have many advantages, such as that high production efficiency, low energy consumption, environmental protection and enamel property are excellent.
The present invention passes through reasonable Design of Chemical Composition, thin slab continuous casting and rolling (CSP technique), cold rolling, continuous annealing work
Skill, smooth process produce a kind of water heater liner cold rolling glassed steel of 260MPa intensity rank.The cold rolling according to said method produced
Steel plate, microscopic structure be ferrite+diffusion carbide, yield strength >=260MPa of mechanical property, tensile strength >=360MPa,
Elongation percentage A50>=35%, it can satisfy intensity and processability requirement of the hot water liner to steel plate；After the application of slip of single side wet process,
Surface of steel plate glaze layer does not generate fishscale, has preferable adhesion property, and economy is high.
Detailed description of the invention
Fig. 1 is the metallographic structure figure of the glassed steel in embodiment 1,
Fig. 2 is the metallographic structure figure of the glassed steel in comparative example 1；
Fig. 3 is enamel surface of the glassed steel after the application of slip of single side wet process in embodiment 1；
Fig. 4 is enamel surface of the glassed steel after the application of slip of single side wet process in comparative example 1.
Specific embodiment
The following describes the present invention in detail with reference to examples.
The chemical component and weight percent of glassed steel in various embodiments of the present invention and comparative example are as shown in table 1, remaining
For Fe and inevitable impurity element.
1 Examples and Comparative Examples chemical component of table, wt%
| Number | C | Si | Mn | P | S | Als | N | B |
| Embodiment 1 | 0.048 | 0.014 | 0.44 | 0.009 | 0.0061 | 0.036 | 0.0086 | 0.0017 |
| Embodiment 2 | 0.052 | 0.008 | 0.37 | 0.010 | 0.0064 | 0.034 | 0.0075 | 0.0021 |
| Comparative example 1 | 0.040 | 0.009 | 0.39 | 0.007 | 0.0072 | 0.035 | 0.0072 | - |
| Comparative example 2 | 0.051 | 0.010 | 0.35 | 0.008 | 0.0040 | 0.038 | 0.0083 | - |
| Comparative example 3 | 0.038 | 0.008 | 0.33 | 0.010 | 0.0067 | 0.040 | 0.0075 | 0.0024 |
| Comparative example 4 | 0.047 | 0.017 | 0.35 | 0.012 | 0.0080 | 0.042 | 0.0069 | 0.0020 |
The preparation method of Examples 1 to 2 and comparative example 1~2, comprising the following steps: molten iron pretreatment, converter smelting, conjunction
Gold finely tunes, the refining of RH furnace, continuous casting and rolling, batches, cold continuous rolling, degreasing, continuous annealing, smooth；
The preparation method of comparative example 3~4, comprising the following steps: molten iron pretreatment, converter smelting, alloy fine tuning, RH furnace essence
Refining continuous casting, hot continuous rolling, batches, is cold continuous rolling, degreasing, continuous annealing, smooth；
I.e. Examples 1 to 2 uses CSP technique, and ingredient meets design value of the present invention；Comparative example 1~2 uses CSP technique, but
Lack B element in ingredient；Comparative example 3~4 meets design value of the present invention using traditional slab continuous casting process, ingredient.
Important technical parameter control in production process in each embodiment and comparative example is as shown in table 2.
2 processing parameter of table
Embodiment and the mechanical property of comparative example are shown in Table 3 in the present invention: example 1~2 and 1~2 mechanical property of comparative example symbol
Design requirement is closed, low strength in comparative example 3~4 meet design requirements.
Compared to more traditional casting technology, much faster, cooling velocity is fast, in steel billet for the slab cooling speed under CSP technique
Precipitate more small and dispersed, product intensity is higher.
3 product mechanical property of table
The metallographic structure that the present invention implements glassed steel in 1 is ferrite+carbide, and distribution of carbides is uniform, is conducive to draw
Deep forming, as shown in Figure 1, plate property is uniform；The metallographic structure of glassed steel in comparative example 3 is ferrite+pearlite+carbonization
Object, as shown in Fig. 2, pearlite, which is distributed in crystal boundary, influences steel formability performance.
Using the two-sided primary painting pool technique of wet process, natural cooling after 840 DEG C of heat preservation 6min places 48h, and observation the results are shown in Table
5: implement 1~2 and 3~4 enamel surface of comparative example all do not occur that squama is quick-fried and adhesion property is good, as shown in figure 3, quick-fried without squama；Compare
1~2 enamel surface portion region of example generation squama is quick-fried, as Fig. 4 institute is European.
5 application of slip firing process of table and performance evaluation
From examples detailed above as can be seen that present invention steel band microscopic structure produced is ferrite+diffusion carbide, mechanics
Yield strength >=260MPa of performance, tensile strength >=360MPa can satisfy two-part hot water liner intensity requirement；Elongation percentage
A50>=35%, it can satisfy requirement of the water heater liner to armor plate strength and forming property, after the application of slip of single side wet process, steel plate
Surface glaze layer does not generate fishscale, and adhesion property is preferable, and economy is high.
A kind of above-mentioned detailed description that 260MPa grades of cold-rolling continuous annealing glassed steel and its production method are carried out referring to embodiment,
It is illustrative without being restrictive, several embodiments can be enumerated according to limited range, therefore do not departing from this hair
Change and modification under bright general plotting should belong within protection scope of the present invention.
Claims (10)
1. a kind of 260MPa grades of cold-rolling continuous annealing glassed steel, which is characterized in that the chemical component including following weight percent: C:
0.020~0.060%, Si≤0.030%, Mn:0.020%~0.60%, P≤0.020%, S≤0.010%, Al:0.020
~0.060%, B:0.0015~0.0040%, N:0.0040~0.0100%, remaining is Fe and inevitable impurity element.
2. 260MPa grades of cold-rolling continuous annealing glassed steel according to claim 1, which is characterized in that including following weight percent
Chemical component: C:0.046~0.053%, Si:0.008~0.014%, Mn:0.042%~0.56%, P≤0.010%, S
≤ 0.0064%, Al:0.032~0.038%, B:0.0021~0.0036%, N:0.0074~0.0086%, remaining for Fe and
Inevitable impurity element.
3. 260MPa grades of cold-rolling continuous annealing glassed steel according to claim 1 or 2, which is characterized in that described 260MPa grades cold
The metallographic structure for rolling continuous annealing glassed steel is ferrite+diffusion carbide；Its yield strength >=260MPa, tensile strength >=
360MPa, elongation percentage A50>=35%.
4. the production method of 260MPa grade cold-rolling continuous annealing glassed steel according to claim 1 to 3, feature exist
In the preparation method comprises the following steps: molten iron pretreatment, converter smelting, alloy fine tuning, the refining of RH furnace, continuous casting and rolling, volume
It takes, is cold continuous rolling, degreasing, continuous annealing, smooth.
5. production method according to claim 4, which is characterized in that in the continuous casting and rolling step, steel billet is thick before rolling
Degree control is in 65mm-90mm；Front spring heating and temperature control is rolled at 1050 DEG C~1150 DEG C；Finishing temperature control is at 860 DEG C
~960 DEG C.
6. production method according to claim 4, which is characterized in that in the continuous casting and rolling step, using section cooling
Mode is cooled down.
7. production method according to claim 4, which is characterized in that described to batch in step, oiler temperature control is 600
DEG C~650 DEG C.
8. production method according to claim 4, which is characterized in that in the cold continuous rolling step, cold rolling total reduction control
System >=70%.
9. production method according to claim 4, which is characterized in that in the continuous annealing step, annealing soak temperature
At 730 DEG C~780 DEG C, soaking time controls 90~150s for control.
10. production method according to claim 4, which is characterized in that in the planarization step, whole elongation control exists
0.6~1.2%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113025907A (en) * | 2021-03-09 | 2021-06-25 | 马鞍山钢铁股份有限公司 | Cold-rolled enameled steel plate for anti-pressing and anti-explosion porcelain water heater liner and production method thereof |
| CN113684413A (en) * | 2020-05-18 | 2021-11-23 | 宝山钢铁股份有限公司 | Cold-rolled enamel steel for deep drawing liner and manufacturing method thereof |
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| JPS57169021A (en) * | 1981-04-07 | 1982-10-18 | Kawasaki Steel Corp | Production of low carbon cold rolled steel plate for enamel |
| JPS5893822A (en) * | 1981-12-01 | 1983-06-03 | Nippon Steel Corp | Manufacture of hot rolled steel plate with superior enameling hardenability |
| JPS59118814A (en) * | 1982-12-27 | 1984-07-09 | Kawasaki Steel Corp | Manufacture of hot rolled steel plate for enamel with superior formability and fish scale resistance |
| JPH02305926A (en) * | 1989-05-17 | 1990-12-19 | Nippon Steel Corp | Production of hot rolled steel sheet for enamel |
| JPH03232947A (en) * | 1990-02-09 | 1991-10-16 | Kawasaki Steel Corp | Steel sheet for porcelain enameling having few defects such as bubbles and black spots |
| JP2006037215A (en) * | 2004-07-30 | 2006-02-09 | Nippon Steel Corp | Steel sheet for enameling having good adhesion to enameling, production method therefor, and enameled product |
| RU2379361C1 (en) * | 2008-12-22 | 2010-01-20 | Открытое акционерное общество "Северсталь" (ОАО "Северсталь") | Method of cold-rolled sheet products manufacturing for enameling |
| CN103469075A (en) * | 2013-09-18 | 2013-12-25 | 济钢集团有限公司 | Super deep-drawing cold-rolled enamel steel produced by ASP diplex process and manufacturing method thereof |
| CN103643118A (en) * | 2013-12-26 | 2014-03-19 | 马钢(集团)控股有限公司 | Hot-rolled and pickled steel plate for 380MPa-grade single-sided enamel and production method thereof |
| CN105177411A (en) * | 2015-08-07 | 2015-12-23 | 华北理工大学 | Boracic cold-rolled enamel steel suitable for continuous annealing production and manufacturing method of boracic cold-rolled enamel steel |
| CN105088065A (en) * | 2015-09-25 | 2015-11-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Cold-rolled enamelled steel and production method thereof |
| CN107326268A (en) * | 2017-08-16 | 2017-11-07 | 马鞍山钢铁股份有限公司 | A kind of cold rolling Steel for enamel of economical deep-draw and production method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684413A (en) * | 2020-05-18 | 2021-11-23 | 宝山钢铁股份有限公司 | Cold-rolled enamel steel for deep drawing liner and manufacturing method thereof |
| CN113684413B (en) * | 2020-05-18 | 2022-06-28 | 宝山钢铁股份有限公司 | Cold-rolled enamel steel for deep drawing liner and manufacturing method thereof |
| CN113025907A (en) * | 2021-03-09 | 2021-06-25 | 马鞍山钢铁股份有限公司 | Cold-rolled enameled steel plate for anti-pressing and anti-explosion porcelain water heater liner and production method thereof |
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