CN108913852B - Method for producing tin plate substrate based on cover-type annealing process - Google Patents
Method for producing tin plate substrate based on cover-type annealing process Download PDFInfo
- Publication number
- CN108913852B CN108913852B CN201810715405.1A CN201810715405A CN108913852B CN 108913852 B CN108913852 B CN 108913852B CN 201810715405 A CN201810715405 A CN 201810715405A CN 108913852 B CN108913852 B CN 108913852B
- Authority
- CN
- China
- Prior art keywords
- cold
- leveling
- cover
- plate substrate
- frame
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0242—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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a method for producing a tin plate substrate based on a cover-type annealing process, which comprises the following steps: carrying out degreasing cleaning, cover annealing and leveling secondary pressing treatment on a cold-rolled plate with the thickness of 0.414-0.356 mm and the width of 800-900 mm to prepare a secondary cold-rolled tinning plate substrate; wherein the hot point of the cover annealing is controlled to be 600 ℃, and the cold point is controlled to be 570 ℃; the leveling secondary pressing is carried out through a leveling unit, the leveling secondary pressing rate is controlled to be 10% -23%, a first rack of the leveling unit adopts a continuous variable convexity roller shape with the roller surface roughness of 0.4 mu M, a second rack of the leveling unit adopts a double-edge chamfer angle flat roller shape with the roller surface roughness of 2.0 mu M, and by means of the technical scheme, the technical problems that end edge pressing defects, edge rolling cracks and four-corner warping probability are high when the MR DR-7M BA tin plate substrate is produced through a cover type annealing process in the prior art are solved.
Description
Technical Field
The invention relates to the field of metal processing, in particular to a method for producing a tin plate substrate based on a cover type annealing process.
Background
The chemical barrel is made of an iron electrotinning product, and a T material, namely quenched and tempered steel, and a DR material, namely a secondary pressing material are common materials. The electroplated tin plate as a chemical packaging material faces a very large market competitive pressure, and in order to reduce the production and manufacturing cost, the thickness of the MR-DR8 tin plate product used by a user is already turned to be less than 0.20 mm from the original 0.20-0.22 mm. The T2.5BA tinplate of 3.5mm is the commonly used chemical industry bucket raw materials, also has the demand of attenuate in order to reduce production manufacturing cost. The analyzed 0.32mm MR DR-7M BA material has the capability of replacing T2.5BA.
The general process of the chemical barrel manufacturing technology comprises the steps of transverse cutting, coating, slitting, circle circling, welding and top bottom cover adding. In order to ensure that the barrel manufacturing is smooth, the base plate is good in shape, and the plate surface has no defects of scratches, bonding lines, blank pressing creases and the like. Therefore, hood annealing process production of MR DR-7M BA requires protective measures against performance, panel shape control, and common surface defects of end blankholding.
The MR DR-7M BA tinning plate substrate produced by the cover type annealing process is still in a promotion stage, a mature manufacturing method of the MR DR-7M BA tinning plate substrate produced by the cover type annealing process is lacked in the prior art, and the manufactured substrate is easy to have the technical problems of edge rolling crack and four-corner warping.
Disclosure of Invention
The embodiment of the invention provides a method for producing a tinned plate substrate based on a hood-type annealing process, which is used for solving the technical problems of high probability of end edge pressing defect, edge rolling crack and four-corner warping of an MR DR-7M BA tinned plate substrate produced by the hood-type annealing process in the prior art.
The embodiment of the application provides a method for producing a tin plate substrate based on a cover type annealing process, which comprises the following steps:
carrying out degreasing cleaning, cover annealing and leveling secondary pressing treatment on a cold-rolled plate with the thickness of 0.414-0.356 mm and the width of 800-900 mm to prepare a secondary cold-rolled tinning plate substrate;
wherein the hot point of the cover annealing is controlled to be 600 ℃, and the cold point is controlled to be 570 ℃; the leveling secondary pressing is carried out through a leveling unit, the leveling secondary pressing rate is controlled to be 10% -23%, a first frame of the leveling unit adopts a continuous variable convexity roller shape of 0.4 mu m, and a second frame of the leveling unit adopts a double-edge chamfer flat roller shape of 2.0 mu m.
Optionally, the method further includes configuring the temper mill group as follows:
the roll shifting amount of the first frame is set to 55-65%, the roll shifting amount of the second frame is set to-5%, the roll bending force of the first frame is set to 20-40%, and the roll bending force of the second frame is set to-15% -5%.
Optionally, during the hood-type annealing, the cold-rolled sheets are stacked in a hood annealing furnace along a vertical direction.
Optionally, during the hood annealing, the cold-rolled sheet is hoisted by a vertical clamp.
Optionally, the hardness of the secondary cold-rolled tinning plate substrate is 66-76.
Optionally, the surface roughness of the secondary cold-rolled tinplate base plate is 0.45-0.60 μm.
Optionally, the thickness of the secondary cold-rolled tinplate base plate is 0.32 mm.
One or more technical solutions in the embodiments of the present application have at least the following technical effects:
by providing the method for producing the tinned plate substrate based on the cover annealing process, the cold-rolled plate with the thickness of 0.414-0.356 mm and the width of 800-900 mm is subjected to degreasing cleaning, cover annealing and leveling secondary pressing treatment to prepare the secondary cold-rolled tinned plate substrate; during cover annealing, controlling the hot point of the cover annealing to be 600 ℃ and the cold point to be 570 ℃; when the secondary flattening is performed, the secondary flattening rate is controlled to be 10% -23%, a first frame of a flattening unit for performing secondary flattening adopts a continuous variable convexity roller shape with the thickness of 0.4 mu M, a second frame of the flattening unit adopts a double-edge chamfer flat roller shape with the thickness of 2.0 mu M, the probability of edge roll cracking and four-corner warping of the MR DR-7M BA tin plate substrate produced by the hood type annealing process is reduced, and the technical problem that the probability of edge roll cracking and four-corner warping of the MR DR-7M BA tin plate substrate produced by the hood type annealing process in the prior art is high is solved.
Drawings
Fig. 1 is a flow chart of a method for producing a tin-plated substrate based on a hood-type annealing process.
Detailed Description
In the technical scheme provided by the embodiment of the application, the probability of edge rolling crack and four-corner warping of the MR DR-7M BA tin plate substrate produced by the cover annealing process is reduced by controlling hot spots and cold spots of the cover annealing process, and the roll shape and the leveling secondary reduction rate of the leveling secondary reduction process.
The main implementation principle, the specific implementation mode and the corresponding beneficial effects of the technical scheme of the embodiment of the present application are explained in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, the present embodiment provides a method for producing a tin-plated substrate based on a hood-type annealing process, including:
carrying out degreasing cleaning 10, cover annealing 20 and leveling secondary pressing 30 treatment on a cold-rolled plate with the thickness of 0.414-0.356 mm and the width of 800-900 mm to prepare a secondary cold-rolled tinning plate substrate;
wherein the hot spot of the cover annealing 10 is controlled at 600 ℃ and the cold spot is controlled at 570 ℃; the leveling secondary pressing is performed through a leveling unit for 30 times, the leveling secondary pressing rate is controlled to be 10% -23%, a first frame of the leveling unit adopts a continuous variable convexity roller shape with the roller surface roughness of 0.4 mu m, and a second frame of the leveling unit adopts a double-edge chamfer flat roller shape with the roller surface roughness of 2.0 mu m.
In the specific implementation process, various parameters in the generation process of cold-rolled sheets with different thicknesses and widths are different, and the embodiment of the specification provides a novel method for degreasing and cleaning 10, hood annealing 20 and leveling secondary reduction 30 treatment of the cold-rolled sheets with the thickness of 0.414-0.356 mm and the width of 800-900 mm, and the method can be used for generating and manufacturing a secondary cold-rolled tinning plate substrate with the thickness of 0.32mm, the yield strength of 520 +/-50 MPa, the hardness HR30T of 71 +/-5 and the surface roughness of 0.45-0.60 mu m.
Specifically, during the hood-type annealing, the hot spot of the hood-type annealing is controlled to be 600 ℃, the cold spot of the hood-type annealing is controlled to be 570 ℃, and during the leveling secondary reduction, the leveling secondary reduction rate is controlled to be 10% -23%, such as 10%, 18%, 20%, 23% and the like, so that the performance of the substrate can be effectively improved through controlling the temperature of the cold spot and the leveling secondary reduction rate of the hood-type annealing. Furthermore, the roll shape of the leveling secondary pressing is adjusted on the basis of improving the performance of the substrate, the first rack of the leveling unit for leveling the secondary pressing, namely the No. 1 rack, adopts a continuous Variable Crown (CVC2, continuous Variable Crown 2) roll shape of 0.4 mu M, the second rack of the leveling unit and the No. 2 rack adopt a double-edge chamfer flat roll shape of 2.0 mu M to control the shape of the substrate, and the probability of edge rolling crack and four-corner warping of the MR DR-7M BA tin plate substrate produced by the cover type annealing process is further reduced. Compared with the method for controlling the plate shape by independently adjusting the shape of the leveling secondary reduction roller, the method combines the control of the temperature of the bell-type annealing cold and hot spot and the leveling secondary reduction rate, not only can greatly reduce the probability of the edge roll crack and the four-corner warping of the substrate, but also can effectively avoid the serious edge roll crack and the four-corner warping.
In order to further avoid the edge rolling crack and the four-corner warping of the substrate, the embodiment of the present specification further performs the following configuration on the leveling unit performing the leveling secondary pressing: setting the roll shifting amount of the first frame to be 55-65%, and setting the roll shifting amount of the second frame to be-5%; the roll bending force of the first frame is set to be 20% -40%, and the roll bending force of the second frame is set to be-15% -5%. By adjusting the roll bending force, the roll shifting amount and the roll shape of the leveling secondary reduction and combining the control of the temperature of the cold and hot points of the cover annealing and the leveling secondary reduction rate, the quality of the substrate cost is improved, and the problems of edge rolling crack and four-corner warping are avoided.
In the specific implementation process, when the cover type annealing is carried out, the cold-rolled sheet is hoisted through a vertical clamp such as an improved vertical clamp or a common clamp, the contact area of the sliding part of the clamp and the end surface part of the steel coil is shortened, and the blank pressing defect caused by the damage of the end part when the steel coil is transported or stacked is prevented. Furthermore, when the cover annealing is carried out, the cold-rolled sheet can be stacked in the cover annealing furnace along the vertical direction for annealing.
The 0.32mm MR DR-7M BA tinplate base plate generated and obtained by the embodiment can be used for replacing 0.35mm T3 material for manufacturing the chemical bucket, and the cost for manufacturing the chemical bucket is reduced.
Referring to Table 1 below, the mechanical properties of the 0.32mm MR DR-7M BA tin plate substrate to be produced for the examples of the present application, dimensions and surface:
TABLE 1
The cold-rolled sheet meeting the requirements is subjected to the treatment processes of degreasing and cleaning 10, cover annealing 20, leveling and secondary pressing 30 and the like in the embodiment, and then the 0.32mm MR DR-7M BA tinning sheet substrate is obtained, and the specific process parameters are shown in Table 2.
TABLE 2
As can be seen from Table 2, the 0.32mm MR DR-7M BA tin plate substrate obtained by the method in the embodiment of the invention has good size, plate shape and hardness value.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A method for producing a tin plate substrate based on a hood-type annealing process is characterized by comprising the following steps:
carrying out degreasing cleaning, cover annealing and leveling secondary pressing treatment on a cold-rolled plate with the thickness of 0.414-0.356 mm and the width of 800-900 mm to prepare a secondary cold-rolled tinning plate substrate;
wherein the hot point of the cover annealing is controlled to be 600 ℃, and the cold point is controlled to be 570 ℃; carrying out the leveling secondary pressing by a leveling unit, controlling the leveling secondary pressing rate to be 10% -23%, wherein a first frame of the leveling unit adopts a continuous variable convexity roller shape with the roller surface roughness of 0.4 mu m, and a second frame of the leveling unit adopts a double-edge chamfer flat roller shape with the roller surface roughness of 2.0 mu m;
the hardness of the secondary cold-rolled tinning plate substrate is 66-76, the surface roughness is 0.45-0.60 mu m, and the thickness is 0.32 mm.
2. The method of claim 1, further comprising configuring the grading machine group by:
the roll shifting amount of the first frame is set to 55-65%, the roll shifting amount of the second frame is set to-5%, the roll bending force of the first frame is set to 20-40%, and the roll bending force of the second frame is set to-15% -5%.
3. The method according to claim 2, wherein the cold-rolled sheet is placed in a hood annealing furnace in a vertical stack while performing the hood annealing.
4. A method according to claim 3, characterized in that the cold-rolled sheet is handled by means of vertical clamps during the hood annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715405.1A CN108913852B (en) | 2018-06-29 | 2018-06-29 | Method for producing tin plate substrate based on cover-type annealing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715405.1A CN108913852B (en) | 2018-06-29 | 2018-06-29 | Method for producing tin plate substrate based on cover-type annealing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108913852A CN108913852A (en) | 2018-11-30 |
| CN108913852B true CN108913852B (en) | 2020-08-21 |
Family
ID=64425304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715405.1A Active CN108913852B (en) | 2018-06-29 | 2018-06-29 | Method for producing tin plate substrate based on cover-type annealing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108913852B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794301B (en) * | 2012-08-03 | 2014-07-09 | 莱芜市泰山冷轧板有限公司 | Manufacture method of cold-rolled electrolytic tin substrate |
| CN103066768B (en) * | 2013-01-04 | 2014-03-12 | 湖南雪豹电器有限公司 | Production craft utilizing semi-processed steel to produce motor rotor and motor stator |
| CN104209321B (en) * | 2014-09-10 | 2016-04-20 | 中冶南方工程技术有限公司 | For the smooth double secondary cold-rolling unit of Stand Mill six roller UCM that tinning substrate is produced |
| CN107287513B (en) * | 2017-06-01 | 2019-04-23 | 首钢集团有限公司 | A kind of tin plate and preparation method thereof |
| CN107177788B (en) * | 2017-06-01 | 2019-05-24 | 首钢集团有限公司 | A kind of secondary cold-rolling tin plate and its production method |
| CN107413877A (en) * | 2017-07-05 | 2017-12-01 | 河钢集团衡水板业有限公司 | A kind of production method of cold rolling hood type annealing tinning substrate adhesion resistant steel |
-
2018
- 2018-06-29 CN CN201810715405.1A patent/CN108913852B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108913852A (en) | 2018-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106834825B (en) | 5182 aluminium alloys | |
| CN102581002B (en) | Method for preparing pure nickel sheet | |
| CN102794301A (en) | Manufacture method of cold-rolled electrolytic tin substrate | |
| CN103861892A (en) | Composite shaping method of wide magnesium alloy thin plates | |
| CN109207695A (en) | A kind of production method reducing X80M grades of pipe line steel hardness | |
| CN106077086A (en) | A kind of roll the multi-metal composite material production method moving back connection | |
| CN111389916A (en) | Gradient tissue regulation and control method based on cross variable thickness rolling | |
| CN107287513A (en) | A kind of new tin plate and preparation method thereof | |
| CN108913852B (en) | Method for producing tin plate substrate based on cover-type annealing process | |
| CN103695816A (en) | Preparation method of metal composite plate | |
| CN106424134A (en) | Efficient production method of aluminum alloy cold-rolled coiled material | |
| CN106623419B (en) | The cold rolling production method of controlled expansion alloy band | |
| CN110785502A (en) | Method for manufacturing thin plate for metal mask and thin plate for metal mask | |
| CN109092905B (en) | Flattening method for eliminating pattern wave-shaped defects | |
| CN113894402B (en) | Titanium steel composite plate and preparation method and application thereof | |
| CN104988292B (en) | A kind of deep-draw production method of DR material substrates | |
| CN109321730A (en) | A kind of mill coil and its preparation method and application of household motor rotor/stator | |
| CN111074052B (en) | Production method of tinned substrate for SPCC deep drawing | |
| CN107363093B (en) | A kind of thin specification steel plate milling method improving the preceding intermediate blanket shape of rolling | |
| CN106834933A (en) | High intensity tin plate | |
| CN110038898B (en) | 1500 MPa-level hot forming high-strength steel production process | |
| KR102225061B1 (en) | Manufacturing method of Fe-Ni alloy thin plate and Fe-Ni alloy thin plate | |
| CN104438457A (en) | Method for improving flatness of aluminum alloy board | |
| CN106345876A (en) | Corner molding process and corner dressing die | |
| JPS58141364A (en) | Extremely-thin cold-rolled steel plate with superior workability into can |
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 |