CN112934966A - Rolling method for improving bonding strength of bimetal composite plate - Google Patents
Rolling method for improving bonding strength of bimetal composite plate Download PDFInfo
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- CN112934966A CN112934966A CN202110206783.9A CN202110206783A CN112934966A CN 112934966 A CN112934966 A CN 112934966A CN 202110206783 A CN202110206783 A CN 202110206783A CN 112934966 A CN112934966 A CN 112934966A
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- metal plates
- rolling
- composite plate
- bimetal composite
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- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
-
- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a rolling method for improving the bonding strength of a bimetal composite plate, which relates to the technical field of rolling of bimetal composite plates, in particular to S1 preheating of the metal plate; s2, stamping tooth grooves; s3, composite plate rolling and S4, cooling and finishing. This rolling method for improving bimetal composite board bonding strength heats two metal sheets and impresses the tooth's socket in laminating face between them, one side that two metal sheets have the tooth's socket laminates each other and is based on the interlock of tooth's socket mutually, make two metal sheets more inseparable laminating together based on the expansion of laminating area, make two metal sheets take place the butt fusion through heating simultaneously, thereby be favorable to improving the bonding strength who connects between two metal sheets, and the bimetal composite board finished product that obtains after rolling is maintained has two metal sheets advantage respectively more simultaneously and improves life, be favorable to avoiding having the metal sheet to take place to drop after long-term the use.
Description
Technical Field
The invention relates to the technical field of rolling of bimetal composite plates, in particular to a rolling method for improving the bonding strength of bimetal composite plates.
Background
The bimetal composite board is a widely used metal composite material and is widely applied to the fields of buildings, automobiles and the like, two different metal boards are combined into one, and the preparation process is to cast metal liquid of an auxiliary board on the surface of a base plate and roll the metal liquid after cooling.
The existing bimetal composite plate preparation process is to cast and cover the molten metal of the auxiliary plate on the surface of the substrate for rolling, the degree of adhesion of the molten metal and the surface of the substrate is not high in the process, the auxiliary plate is easy to crack during rolling, and the surface layer formed by the molten metal of the auxiliary plate is easy to fall off after the prepared bimetal composite plate is used for a long time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rolling method for improving the bonding strength of a bimetal composite plate, and solves the problems that the existing bimetal composite plate preparation process proposed in the background art is to cast and cover the molten metal of a secondary plate on the surface of a substrate for rolling, the adhesion degree of the molten metal and the surface of the substrate is not high in the process, the secondary plate is easy to crack during rolling, and the surface layer formed by the molten metal of the secondary plate is easy to fall off after the prepared bimetal composite plate is used for a long time.
In order to achieve the purpose, the invention is realized by the following technical scheme: a rolling method for improving the bonding strength of a bimetal composite plate comprises the following operation steps:
s1, preheating a metal plate:
heating two metal plates to be rolled by a heating device, and softening the surfaces of the metal plates by heating so as to obtain two softened metal plates;
s2, stamping tooth grooves:
placing the two softened metal plates obtained in the step S1 in a compression molding device, enabling the surfaces to be connected of the two softened metal plates to be upward, and stamping a serrated tooth socket on the connecting surface of the metal plates through the compression molding device, so as to obtain two serrated metal plates;
s3, rolling the composite plate:
the two sawtooth surface metal plates obtained in the step S2 are jointed and then sent to rolling equipment for rolling, the temperature is constant during rolling, and a primary bimetal composite plate can be obtained after rolling;
s4, cooling and finishing:
and S3, after air cooling and temperature reduction, trimming the edge of the primary bimetal composite plate obtained by rolling, and naturally cooling the trimmed bimetal composite plate to obtain the finished bimetal composite plate.
Optionally, in the step S1, the heating temperature of the two metal plates is the melting point temperature corresponding to the material of the metal plates, and the heating time is controlled to be 10-20 minutes.
Optionally, when the two metal plates are heated, the upper surface, the lower surface and the side surfaces at two sides are all limited, namely, plates with melting points higher than those of the two metal plates are attached to the upper surface, the lower surface and the side surfaces at two sides of the metal plates, so that the effect of preventing the metal plates from deforming due to thermal expansion is achieved.
Optionally, in the step S2, the bottom surface of the shaping member of the compression molding device is in a zigzag structure, and after the two metal plates stamped with the zigzag tooth grooves are attached, the zigzag tooth grooves are engaged with each other.
Alternatively, in the step S2, the two metal plates are still heated while being subjected to the compression molding operation by the compression molding apparatus, and the temperature is two thirds of the melting point temperature of the metal plates.
Optionally, in the step S3, after the two metal plates with serrated surfaces are stacked and attached, the serrated tooth grooves are engaged with each other, and the side edges of the two metal plates are flush after stacking.
Optionally, in the step S3, the temperature during rolling is controlled to be two-thirds of the melting point temperature of the metal plate with the lower melting point.
Optionally, in the step S3, the lower roller of the rolling device is dumbbell-shaped, that is, the diameter of the middle portion of the lower roller is smaller than the diameters of the two ends, the upper roller and the lower roller are engaged with each other, and the two metal plates are attached to the two sides of the lower roller at the side surfaces during rolling, so as to prevent the metal plates from deforming during rolling.
Optionally, in the step S4, when the air-cooling is performed, the air speed is controlled to be 30-55 m/min, the fan carries water mist to cool, and the temperature of the primary bimetal composite plate after cooling is controlled to be one fifth of the melting point temperature of the lowest metal plate.
The invention provides a rolling method for improving the bonding strength of a bimetal composite plate, which has the following beneficial effects:
this rolling method for improving bimetal composite board bonding strength heats two metal sheets and impresses the tooth's socket in laminating face between them, one side that two metal sheets have the tooth's socket laminates each other and is based on the interlock of tooth's socket mutually, make two metal sheets more inseparable laminating together based on the expansion of laminating area, make two metal sheets take place the butt fusion through heating simultaneously, thereby be favorable to improving the bonding strength who connects between two metal sheets, and the bimetal composite board finished product that obtains after rolling is maintained has two metal sheets advantage respectively more simultaneously and improves life, be favorable to avoiding having the metal sheet to take place to drop after long-term the use.
Drawings
FIG. 1 is a schematic view of the preparation process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the present invention provides a technical solution: a rolling method for improving the bonding strength of a bimetal composite plate comprises the following operation steps:
s1, preheating a metal plate:
heating two metal plates to be rolled by a heating device, and softening the surfaces of the metal plates by heating so as to obtain two softened metal plates;
s2, stamping tooth grooves:
placing the two softened metal plates obtained in the step S1 in a compression molding device, enabling the surfaces to be connected of the two softened metal plates to be upward, and stamping a serrated tooth socket on the connecting surface of the metal plates through the compression molding device, so as to obtain two serrated metal plates;
s3, rolling the composite plate:
the two sawtooth surface metal plates obtained in the step S2 are jointed and then sent to rolling equipment for rolling, the temperature is constant during rolling, and a primary bimetal composite plate can be obtained after rolling;
s4, cooling and finishing:
and S3, after air cooling and temperature reduction, trimming the edge of the primary bimetal composite plate obtained by rolling, and naturally cooling the trimmed bimetal composite plate to obtain the finished bimetal composite plate.
In the step S1, the heating temperature of the two metal plates is the melting point temperature corresponding to the material of the metal plates, and the heating time is controlled to be 10-20 minutes.
When the two metal plates are heated, the upper surface, the lower surface and the side surfaces at two sides are all limited, namely, plates with melting points higher than those of the two metal plates are attached to the upper surface, the lower surface and the side surfaces at two sides of the metal plates, so that the effect of preventing the metal plates from deforming due to thermal expansion is achieved.
And in the step S2, the bottom surface of a shaping piece of the compression molding device is in a sawtooth structure, and after the two metal plates stamped with the sawtooth tooth grooves are attached, the sawtooth tooth grooves are meshed with each other.
In step S2, the two metal plates are still heated while being subjected to the compression molding operation by the compression molding apparatus, and the temperature is two thirds of the melting point temperature of the metal plates.
And S3, after the two metal plates with the sawtooth surfaces are stacked and attached, the sawtooth tooth grooves are mutually occluded, and the side edges of the two metal plates are level after being stacked.
In step S3, the temperature during rolling is controlled to be two-thirds of the melting point temperature of the metal plate having the lower melting point of the two metal plates.
And S3, the lower roller of the rolling equipment is dumbbell-shaped, namely the diameter of the middle part of the lower roller is smaller than the diameters of the two ends, the upper roller and the lower roller are matched, and the two metal plates are attached to the two sides of the lower roller in the side face during rolling, so that the metal plates are prevented from being deformed during rolling.
In the step S4, when air cooling is carried out, the air speed is controlled to be 30-55 m/min, the temperature is reduced by carrying water mist with a fan, and the temperature of the primary bimetal composite plate after temperature reduction is controlled to be one fifth of the melting point temperature of the lowest metal plate;
this rolling method for improving bimetal composite board bonding strength heats two metal sheets and impresses the tooth's socket in laminating face between them, one side that two metal sheets have the tooth's socket laminates each other and is based on the interlock of tooth's socket mutually, make two metal sheets more inseparable laminating together based on the expansion of laminating area, make two metal sheets take place the butt fusion through heating simultaneously, thereby be favorable to improving the bonding strength who connects between two metal sheets, and the bimetal composite board finished product that obtains after rolling is maintained has two metal sheets advantage respectively more simultaneously and improves life, be favorable to avoiding having the metal sheet to take place to drop after long-term the use.
In summary, the rolling method for improving the bonding strength of the bimetal composite plate comprises the following operation steps:
s1, preheating a metal plate: heating two metal plates to be rolled by a heating device, and softening the surfaces of the metal plates by heating so as to obtain two softened metal plates;
s2, stamping tooth grooves: placing the two softened metal plates obtained in the step S1 in a compression molding device, enabling the surfaces to be connected of the two softened metal plates to be upward, and stamping a serrated tooth socket on the connecting surface of the metal plates through the compression molding device, so as to obtain two serrated metal plates;
s3, rolling the composite plate: the two sawtooth surface metal plates obtained in the step S2 are jointed and then sent to rolling equipment for rolling, the temperature is constant during rolling, and a primary bimetal composite plate can be obtained after rolling;
s4, cooling and finishing: the edges of the primary bimetal composite plate obtained after rolling in the step S3 are trimmed by cutting equipment after air cooling, and the trimming and natural cooling are carried out, so that a finished bimetal composite plate product is obtained;
this rolling method for improving bimetal composite board bonding strength heats two metal sheets and impresses the tooth's socket in laminating face between them, one side that two metal sheets have the tooth's socket laminates each other and is based on the interlock of tooth's socket mutually, make two metal sheets more inseparable laminating together based on the expansion of laminating area, make two metal sheets take place the butt fusion through heating simultaneously, thereby be favorable to improving the bonding strength who connects between two metal sheets, and the bimetal composite board finished product that obtains after rolling is maintained has two metal sheets advantage respectively more simultaneously and improves life, be favorable to avoiding having the metal sheet to take place to drop after long-term the use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. A rolling method for improving the bonding strength of a bimetal composite plate is characterized by comprising the following steps: the method comprises the following operation steps:
s1, preheating a metal plate:
heating two metal plates to be rolled by a heating device, and softening the surfaces of the metal plates by heating so as to obtain two softened metal plates;
s2, stamping tooth grooves:
placing the two softened metal plates obtained in the step S1 in a compression molding device, enabling the surfaces to be connected of the two softened metal plates to be upward, and stamping a serrated tooth socket on the connecting surface of the metal plates through the compression molding device, so as to obtain two serrated metal plates;
s3, rolling the composite plate:
the two sawtooth surface metal plates obtained in the step S2 are jointed and then sent to rolling equipment for rolling, the temperature is constant during rolling, and a primary bimetal composite plate can be obtained after rolling;
s4, cooling and finishing:
and S3, after air cooling and temperature reduction, trimming the edge of the primary bimetal composite plate obtained by rolling, and naturally cooling the trimmed bimetal composite plate to obtain the finished bimetal composite plate.
2. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S1, the heating temperature of the two metal plates is the melting point temperature corresponding to the material of the metal plates, and the heating time is controlled to be 10-20 minutes.
3. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 2, wherein the rolling method comprises the following steps: when the two metal plates are heated, the upper surface, the lower surface and the side surfaces at two sides are all limited, namely, plates with melting points higher than those of the two metal plates are attached to the upper surface, the lower surface and the side surfaces at two sides of the metal plates, so that the effect of preventing the metal plates from deforming due to thermal expansion is achieved.
4. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: and in the step S2, the bottom surface of a shaping piece of the compression molding device is of a sawtooth structure, and after the two metal plates stamped with the sawtooth tooth grooves are attached, the sawtooth tooth grooves are meshed with each other.
5. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S2, the two metal plates are still heated while being subjected to the compression molding operation by the compression molding apparatus, and the temperature is two thirds of the melting point temperature of the metal plates.
6. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S3, after the two metal plates with the sawtooth surfaces are stacked and attached, the sawtooth tooth grooves are mutually meshed, and the side edges of the two metal plates are flush after being stacked.
7. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S3, the temperature during rolling is controlled to be two-thirds of the melting point temperature of the metal plate with the lower melting point of the two metal plates.
8. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S3, the lower roller of the rolling device is dumbbell-shaped, namely the diameter of the middle part of the lower roller is smaller than the diameters of the two ends, the upper roller and the lower roller are matched, and the two metal plates are attached to the two sides of the lower roller in the side face during rolling, so that the metal plates are prevented from being deformed during rolling.
9. The rolling method for improving the bonding strength of a bimetal composite plate according to claim 1, wherein the rolling method comprises the following steps: in the step S4, when the temperature is reduced by air cooling, the air speed is controlled to be 30-55 m/min, the temperature is reduced by carrying water mist with a fan, and the temperature of the primary bimetal composite plate after the temperature is reduced is controlled to be one fifth of the melting point temperature of the lowest metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206783.9A CN112934966A (en) | 2021-02-24 | 2021-02-24 | Rolling method for improving bonding strength of bimetal composite plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110206783.9A CN112934966A (en) | 2021-02-24 | 2021-02-24 | Rolling method for improving bonding strength of bimetal composite plate |
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| CN202110206783.9A Pending CN112934966A (en) | 2021-02-24 | 2021-02-24 | Rolling method for improving bonding strength of bimetal composite plate |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3717513A (en) * | 1970-12-23 | 1973-02-20 | Pechiney | Process for the production of composite sheets |
| CN101327673A (en) * | 2007-06-22 | 2008-12-24 | 比亚迪股份有限公司 | Metal composite board for injection moulding |
| CN101676097A (en) * | 2008-09-19 | 2010-03-24 | 陈星翰 | High performance double metal stainless steel tape |
| CN104191719A (en) * | 2014-09-10 | 2014-12-10 | 佛山市昆柳盛复合材料有限公司 | Steel based composite board and processing method thereof |
| CN204868106U (en) * | 2015-08-27 | 2015-12-16 | 于宝国 | Building keeps warm and decorates automatic rolling make -up machine of flame -retardant composite board metal -back |
| CN110087787A (en) * | 2016-06-15 | 2019-08-02 | 阿维迪钢铁工程股份公司 | The mill rolls that can roll high milimeter number for ESP production line |
| CN110842046A (en) * | 2019-12-18 | 2020-02-28 | 湖南科技大学 | Method and device for preparing composite board by extrusion-rolling compounding |
| CN109731912B (en) * | 2019-03-04 | 2020-08-04 | 吉林大学 | Rolling preparation method for tooth-shaped joint surface of titanium/aluminum/magnesium composite plate |
-
2021
- 2021-02-24 CN CN202110206783.9A patent/CN112934966A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3717513A (en) * | 1970-12-23 | 1973-02-20 | Pechiney | Process for the production of composite sheets |
| CN101327673A (en) * | 2007-06-22 | 2008-12-24 | 比亚迪股份有限公司 | Metal composite board for injection moulding |
| CN101676097A (en) * | 2008-09-19 | 2010-03-24 | 陈星翰 | High performance double metal stainless steel tape |
| CN104191719A (en) * | 2014-09-10 | 2014-12-10 | 佛山市昆柳盛复合材料有限公司 | Steel based composite board and processing method thereof |
| CN204868106U (en) * | 2015-08-27 | 2015-12-16 | 于宝国 | Building keeps warm and decorates automatic rolling make -up machine of flame -retardant composite board metal -back |
| CN110087787A (en) * | 2016-06-15 | 2019-08-02 | 阿维迪钢铁工程股份公司 | The mill rolls that can roll high milimeter number for ESP production line |
| CN109731912B (en) * | 2019-03-04 | 2020-08-04 | 吉林大学 | Rolling preparation method for tooth-shaped joint surface of titanium/aluminum/magnesium composite plate |
| CN110842046A (en) * | 2019-12-18 | 2020-02-28 | 湖南科技大学 | Method and device for preparing composite board by extrusion-rolling compounding |
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Application publication date: 20210611 |
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