CN107385320A - A kind of spiral cover secondary cold-rolling tin plate and its production method - Google Patents
A kind of spiral cover secondary cold-rolling tin plate and its production method Download PDFInfo
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- CN107385320A CN107385320A CN201710408503.6A CN201710408503A CN107385320A CN 107385320 A CN107385320 A CN 107385320A CN 201710408503 A CN201710408503 A CN 201710408503A CN 107385320 A CN107385320 A CN 107385320A
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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
- 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
- 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
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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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
-
- 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
- C22C38/04—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
- 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
- C23C2/08—Tin 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
- C23C2/34—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The present invention discloses a kind of spiral cover secondary cold-rolling tin plate and its production method, and the spiral cover is respectively with the chemical composition mass percent of secondary cold-rolling tin plate:C 0.03~0.05%, Si≤0.02%, Mn 0.15~0.30%, P≤0.015%, S≤0.012%, Als 0.03~0.07%, N 0.0070~0.0140%, remaining is Fe and impurity.The production method includes:Hot continuous rolling, cold rolling, continuous annealing, secondary cold-rolling and tin plating technique.The present invention is by appropriate C, Mn element of addition in steel, and 70~140ppm N element can effectively reduce the addition of alloying element valuable in steel, and cost of alloy is reduced on the premise of proof strength hardness.Meanwhile high plasticity can be obtained using high temperature coiling, high temperature continuous annealing and small secondary cold-rolling reduction ratio, and small anisotropy is obtained, and the plate surface defect such as wood grain can effectively exclusively be avoided using pure induction reflow technique, improve surface quality.
Description
Technical field
The present invention relates to technical field steel technical field, more particularly to a kind of spiral cover secondary cold-rolling tin plate and its life
Production method.
Background technology
Secondary cold-rolling tin plate be by after annealing uncoated tinplate base carry out secondary cold-rolling after again by continuous electroplating tin operation
The tin plate or steel band in two sides plating tin layers obtained.It has the characteristics of intensity is high, thickness of thin, is widely used in eating
The field of product packaging such as product, beverage, chemical industry.Wherein, spiral cover is that secondary cold-rolling tin plate is one of important use, due to shaping
Journey not deburring, therefore strict requirements are proposed to the formability and anisotropy of secondary cold-rolling tin plate.
The secondary cold-rolling plate and its manufacture method of a kind of high extension of the prior art, its composition are C0.15~0.20%,
Si≤0.030%, Mn0.10-0.50%, P≤0.020%, S≤0.020%, Al0.01~0.05%, N0.0030~
0.0080%, remaining is Fe and impurity.Its continuous annealing temperature is 600~700 DEG C, and secondary cold-rolling reduction ratio is 5~15%, into
Product hardness can reach 66~80.
The invention uses higher carbon component, secondary cold-rolling product is obtained by small secondary cold-rolling, due to its C content mistake
Height, the problem of acid rolling is difficult, and plate shape is difficult to control, and finishing is needed before plating, and process cost is high be present.
The content of the invention
The application provides a kind of spiral cover secondary cold-rolling tin plate and its production method, solves of the prior art secondary
Cold-reduced sheet, because carbon content is too high, there is that acid rolling is difficult, and plate shape is difficult to control, need finishing before plating, process cost is high
Technical problem.
The application provides a kind of spiral cover secondary cold-rolling tin plate, the chemical composition of spiral cover secondary cold-rolling tin plate
Mass percent is respectively:
C 0.03~0.05%, Si≤0.02%, Mn 0.15~0.30%, P≤0.015%, S≤0.012%, Als
0.03~0.07%, N 0.0070~0.0140%, remaining is Fe and impurity.
The application also provides a kind of production method of spiral cover secondary cold-rolling tin plate, for producing described spiral cover with two
Secondary cold-rolled tin plate, the production method include:Hot continuous rolling, cold rolling, continuous annealing, secondary cold-rolling and tin plating technique.
Preferably, the temperature of the reheating in the Hot Strip Rolling is 1200~1260 DEG C.
Preferably, the roughing in the Hot Strip Rolling uses 1+5 or 3+3 passages.
Preferably, the finishing temperature of the finish rolling in the Hot Strip Rolling is 850~900 DEG C.
Preferably, the temperature batched in the Hot Strip Rolling is 660~720 DEG C.
Preferably, it is described it is cold rolled annealed during continuous annealing temperature be 680~720 DEG C.
Preferably, it is described it is cold rolled annealed during 400~500m/min of stove zone speed.
Preferably, the secondary cold-rolling reduction ratio during the secondary cold-rolling is 10~18%.
Preferably, it is described it is tin plating during pure induction reflow temperature be 250~280 DEG C.
The application has the beneficial effect that:
The present invention can effectively reduce steel by appropriate C, Mn element of addition in steel, and 70~140ppm N element
In valuable alloying element addition, reduce cost of alloy on the premise of proof strength hardness.Meanwhile using high warm rolling
Take, high temperature continuous annealing and small secondary cold-rolling reduction ratio can obtain high plasticity, and obtain small anisotropy, and exclusively adopt
The plate surface defect such as wood grain can be effectively avoided with pure induction reflow technique, improves surface quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment.
Fig. 1 is a kind of production method flow chart of spiral cover secondary cold-rolling tin plate of the application better embodiment.
Embodiment
The embodiment of the present application solves existing skill by providing a kind of spiral cover secondary cold-rolling tin plate and its production method
Secondary cold-rolling plate in art, because carbon content is too high, acid rolling difficulty be present, plate shape is difficult to control, and finishing, work are needed before plating
The high technical problem of sequence cost.
In order to solve the above-mentioned technical problem, general thought is as follows for technical scheme in the embodiment of the present application:
The present invention can effectively reduce steel by appropriate C, Mn element of addition in steel, and 70~140ppm N element
In valuable alloying element addition, reduce cost of alloy on the premise of proof strength hardness.Meanwhile using high warm rolling
Take, high temperature continuous annealing and small secondary cold-rolling reduction ratio can obtain high plasticity, and obtain small anisotropy, and exclusively adopt
The plate surface defect such as wood grain can be effectively avoided with pure induction reflow technique, improves surface quality.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
Technical scheme is stated to be described in detail.
In order to solve secondary cold-rolling plate of the prior art, because carbon content is too high, acid rolling difficulty be present, plate shape is difficult
With control, need finishing before plating, the high technical problem of process cost, the application provide a kind of spiral cover with secondary cold-rolling tin plate and
Its production method.
Spiral cover provided by the invention is respectively with the chemical composition mass percent of secondary cold-rolling tin plate:C 0.03~
0.05%, Si≤0.02%, Mn 0.15~0.30%, P≤0.015%, S≤0.012%, Als 0.03~0.07%, N
0.0070~0.0140%, remaining is Fe and impurity.
In Design of Chemical Composition of the present invention:
C, Mn, N are added as intensified element, and wherein C, N element are gap solution strengthening element, meanwhile, also
The significant precipitation strength effect of N element is played, Mn elements are displacement solution strengthening element.To ensure secondary cold-rolling tin plate
Intensity and hardness, while to ensure to have good plasticity concurrently, C element are limited to 0.03~0.05%, too high plasticity to be caused to dislike
Change, it is too low so that intensity is insufficient.Mn mischmetal costs are higher, and invigoration effect is less than N element, therefore are control cost, will
Mn elements are limited to 0.15~0.30%.Because N is the element that invigoration effect is notable and cost is cheap, passes through N precipitation strength
Matrix strength and hardness are remarkably improved, causes to reduce secondary cold-rolling pressure on the premise of the intensity and hardness of final products is ensured
Lower rate is possibly realized.
As shown in figure 1, the production method based on spiral cover secondary cold-rolling tin plate provided by the invention includes:Hot continuous rolling,
Cold rolling, continuous annealing, secondary cold-rolling and tin plating technique.
Specifically, the temperature of the reheating in the Hot Strip Rolling is 1200~1260 DEG C.
Specifically, the roughing in the Hot Strip Rolling uses 1+5 or 3+3 passages.
Specifically, the finishing temperature of the finish rolling in the Hot Strip Rolling is 850~900 DEG C.
Specifically, the temperature batched in the Hot Strip Rolling is 660~720 DEG C.
Specifically, it is described it is cold rolled annealed during continuous annealing temperature be 680~720 DEG C.
Specifically, it is described it is cold rolled annealed during 400~500m/min of stove zone speed.
Specifically, the secondary cold-rolling reduction ratio during the secondary cold-rolling is 10~18%.
Specifically, it is described it is tin plating during pure induction reflow temperature be 250~280 DEG C.
In present invention process design:
Hot rolling uses 660~720 DEG C of high temperature coiling, and main purpose is advantageous for cold rolled annealed rear promotion and is advantageous to shape
{ 111 } texture formed, improve plasticity and formability.
To promote the formation and growth of { 111 } texture during cold rolled annealed, while based on annealing temperature more than 660 DEG C
When the condition that can largely be separated out in annealing process of N element, limit annealing temperature as 680~720 DEG C, both ensured have in steel
Suitable texture and crystallite dimension, while fully separated out with tiny size to improve intensity and hardness in guarantee N element, and make
Obtain each uniform to performance.
During secondary cold-rolling, because the matching of chemical composition and cold and hot roll process to depress using small secondary cold-rolling
Rate is that can reach DR-7M and DR-8 rank, therefore can reduce secondary cold-rolling to plasticity and each infringement to performance uniformity, is subtracted
Small anisotropy.
During tin plating, the combination soft heat of common resistance reflow and resistance+sensing generally has conductive rollers and belt steel surface
Contact, while its firing rate is less than pure induction reflow, is also easy to produce and wipes the surface defects such as scuffing, wood grain, therefore combines in coating
The control of alloy stratum proportion, by pure induction reflow limit temperature at 250~280 DEG C.
Chemical composition and production technology are mutually matched in the present invention, and uniquely.For proof strength and hardness, chemical composition is set
Timing is on the basis of cost of alloy is considered using adding valuable Mn elements less and largely add the design side of cheap N element
Case, intensity and hardness are improved by N solid solution and precipitation strength;And imitated in technological design to give full play to N precipitation strengths
Fruit brings up to annealing temperature on temperature necessary to slightly above N is largely separated out, and matches suitable secondary cold-rolling reduction ratio.
To reduce anisotropy, emphasis is to reduce secondary cold-rolling reduction ratio, therefore passes through chemical composition and annealing temperature
Matching, under C, Mn solution strengthening and the multiple invigoration effect of N solid solutions and precipitation strength, substrate strength and hardness are improved, is made
Obtain and can reach required intensity and hardness level in relatively low secondary cold-rolling reduction ratio.To ensure plasticity and formability, change
Study point the design concept for using low C first, coordinate high temperature coiling and high-temperature annealing process make it that substrate has rational brilliant
Grain and texture, and by small secondary cold-rolling reduction ratio to reduce the harm of secondary cold-rolling, it is final obtain have good plasticity and
Small anisotropic product.
Further, since using pure induction reflow technique, contact, can reduce in production to band with belt steel surface without unnecessary roller
The destruction of steel surface, simultaneously because causing the formation humidity province that wood grain defect can be effectively avoided during soft heat with the high rate of heat addition
Between, avoid the generation of surface defect.
Spiral cover provided by the invention is with the beneficial effect of secondary cold-rolling tin plate and its production method:
The present invention can effectively reduce steel by appropriate C, Mn element of addition in steel, and 70~140ppm N element
In valuable alloying element addition, reduce cost of alloy on the premise of proof strength hardness.
Meanwhile high plasticity can be obtained using high temperature coiling, high temperature continuous annealing and small secondary cold-rolling reduction ratio, and obtain
Small anisotropy is obtained, and the plate surface defect such as wood grain can effectively exclusively be avoided using pure induction reflow technique, improves surface
Quality.
The composition design strengthened by using carbon, manganese, nitrogen coordinates high temperature continuous annealing, rate and pure under small secondary cold rolling
The production technology of induction reflow can produce low cost, high intensity, high-ductility, less anisotropy are small, surface quality it is high with process into
This low tin plate.
In order to understand the present invention in depth, below according to instantiation, the present invention is described in detail.
Example 1
Using conventional continuous cast method formed chemical composition mass percent be respectively C0.03%, Si0.01%,
Mn0.18%, P0.010%, S0.005%, Als0.066%, N0.0080%, remaining is the slab of Fe and impurity.
Then, slab is made to be removed successively by heating, roughing de-scaling, roughing, crop end, finish rolling by hot tandem
Squama, finish rolling, section cooling, batch carry out hot continuous rolling.Wherein, heating furnace heating-up temperature is 1220 DEG C, and roughing uses 1+5 passages,
Mm finishing mill unit finishing temperature is 877 DEG C, and coiling temperature is 667 DEG C.So, after roughing, finish rolling, section cooling, through pulleying
Machine is taken to batch;Then, make hot rolled coil by coupled pickling and tandem mill, continuous annealing unit and tin plating unit i.e. successively by uncoiling, crop,
Pickling, trimming, cold continuous rolling, continuous annealing, secondary cold-rolling, tin plating progress are cold rolled annealed tin plating, wherein, continuous annealing temperature is 682 DEG C,
Secondary cold-rolling rate 11%, pure induction reflow temperature are 255 DEG C, finished product thickness 0.15mm.So, through overpickling, cold rolling, move back
After fiery, tin plating, batched by coiling machine, finally obtain chemical composition mass percent be respectively C0.03%, Si0.01%,
Mn0.29%, P0.010%, S0.005%, Als0.066%, N0.0080%, remaining is the DR-7M hardness levels of Fe and impurity
Secondary cold-rolling tin plate, its hardness HR30Tm are 68.
Example 2
Using conventional continuous cast method formed chemical composition mass percent be respectively C0.05%, Si0.015%,
Mn0.29%, P0.012%, S0.007%, Als0.045%, N0.0105%, remaining is the slab of Fe and impurity.
Then, slab is made to be removed successively by heating, roughing de-scaling, roughing, crop end, finish rolling by hot tandem
Squama, finish rolling, section cooling, carry out hot continuous rolling is batched, wherein, heating furnace heating-up temperature is 1255 DEG C, and roughing uses 3+3 passages,
Mm finishing mill unit finishing temperature is 858 DEG C, and coiling temperature is 715 DEG C.So, after roughing, finish rolling, section cooling, through pulleying
Machine is taken to batch;Then, make hot rolled coil by coupled pickling and tandem mill, continuous annealing unit and tin plating unit i.e. successively by uncoiling, crop,
Pickling, trimming, cold continuous rolling, continuous annealing, secondary cold-rolling, tin plating progress are cold rolled annealed tin plating, wherein, continuous annealing temperature is 690 DEG C,
Secondary cold-rolling rate 18%, pure induction reflow temperature are 278 DEG C, finished product thickness 0.17mm.So, through overpickling, cold rolling, move back
After fiery, tin plating, batched by coiling machine, finally obtain chemical composition mass percent be respectively C0.05%, Si0.015%,
Mn0.29%, P0.012%, S0.007%, Als0.045%, N0.0105%, remaining is the DR-8 hardness levels of Fe and impurity
Secondary cold-rolling tin plate, its hardness HR30Tm are 73.
Example 3
Using conventional continuous cast method formed chemical composition mass percent be respectively C0.04%, Si0.008%,
Mn0.25%, P0.013%, S0.005%, Als0.033%, N0.0133%, remaining is the slab of Fe and impurity.
Then, slab is made to be removed successively by heating, roughing de-scaling, roughing, crop end, finish rolling by hot tandem
Squama, finish rolling, section cooling, carry out hot continuous rolling is batched, wherein, heating furnace heating-up temperature is 1247 DEG C, and roughing uses 3+3 passages,
Mm finishing mill unit finishing temperature is 887 DEG C, and coiling temperature is 693 DEG C.So, after roughing, finish rolling, section cooling, through pulleying
Machine is taken to batch;Then, make hot rolled coil by coupled pickling and tandem mill, continuous annealing unit and tin plating unit i.e. successively by uncoiling, crop,
Pickling, trimming, cold continuous rolling, continuous annealing, secondary cold-rolling, tin plating progress are cold rolled annealed tin plating, wherein, continuous annealing temperature is 716 DEG C,
Secondary cold-rolling rate 15%, pure induction reflow temperature are 260 DEG C, finished product thickness 0.22mm.So, through overpickling, cold rolling, move back
After fiery, tin plating, batched by coiling machine, finally obtain chemical composition mass percent be respectively C0.04%, Si0.008%,
Mn0.25%, P0.013%, S0.005%, Als0.033%, N0.0133%, remaining is the DR-8 hardness levels of Fe and impurity
Secondary cold-rolling tin plate, its hardness HR30Tm are 72.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. spiral cover secondary cold-rolling tin plate, it is characterised in that the chemical composition of spiral cover secondary cold-rolling tin plate Mass percent is respectively:C 0.03~0.05%, Si≤0.02%, Mn 0.15~0.30%, P≤0.015%, S≤0.012%, Als 0.03 ~0.07%, N 0.0070~0.0140%, remaining is Fe and impurity.
- A kind of 2. spiral cover production method of secondary cold-rolling tin plate, for producing spiral cover as described in claim 1 with two Secondary cold-rolled tin plate, it is characterised in that the production method includes:Hot continuous rolling, cold rolling, continuous annealing, secondary cold-rolling and tin plating Technique.
- 3. production method as claimed in claim 2, it is characterised in that the temperature of the reheating in the Hot Strip Rolling is 1200~1260 DEG C.
- 4. production method as claimed in claim 2, it is characterised in that the roughing in the Hot Strip Rolling uses 1+5 or 3 + 3 passages.
- 5. production method as claimed in claim 2, it is characterised in that the finishing temperature of the finish rolling in the Hot Strip Rolling For 850~900 DEG C.
- 6. production method as claimed in claim 2, it is characterised in that the temperature batched in the Hot Strip Rolling is 660~720 DEG C.
- 7. production method as claimed in claim 2, it is characterised in that it is described it is cold rolled annealed during continuous annealing temperature be 680~720 DEG C.
- 8. production method as claimed in claim 2, it is characterised in that it is described it is cold rolled annealed during stove zone speed 400 ~500m/min.
- 9. production method as claimed in claim 2, it is characterised in that the secondary cold-rolling pressure during the secondary cold-rolling Rate is 10~18%.
- 10. production method as claimed in claim 2, it is characterised in that it is described it is tin plating during pure induction reflow temperature For 250~280 DEG C.
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Cited By (5)
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CN108504947A (en) * | 2018-04-04 | 2018-09-07 | 首钢集团有限公司 | A kind of secondary cold-rolling tin plate and its production method |
CN108950613A (en) * | 2018-08-06 | 2018-12-07 | 首钢集团有限公司 | A kind of preparation method of tin plate and the application of thus obtained tin plate |
CN111534757A (en) * | 2020-05-11 | 2020-08-14 | 首钢集团有限公司 | Steel for packaging, production method thereof and packaging product |
CN114058946A (en) * | 2021-10-14 | 2022-02-18 | 首钢集团有限公司 | Low-anisotropy high-strength high-elongation steel substrate, tin-plated plate and preparation method of tin-plated plate |
CN114807771A (en) * | 2022-04-14 | 2022-07-29 | 首钢集团有限公司 | Thin strip steel with large width-thickness ratio and preparation method and application thereof |
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