CN110842046A - Method and device for preparing composite board by extrusion-rolling compounding - Google Patents
Method and device for preparing composite board by extrusion-rolling compounding Download PDFInfo
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- CN110842046A CN110842046A CN201911313081.XA CN201911313081A CN110842046A CN 110842046 A CN110842046 A CN 110842046A CN 201911313081 A CN201911313081 A CN 201911313081A CN 110842046 A CN110842046 A CN 110842046A
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- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 238000013329 compounding Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000000265 homogenisation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 18
- 229910000861 Mg alloy Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- 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
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/003—Cooling or heating of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
-
- 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
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a method and a device for preparing a composite board by extrusion-rolling compounding. The method comprises the steps of homogenizing metal blanks, extruding and preparing concave blanks by adopting a concave blank extrusion die, extruding and preparing convex blanks by adopting a convex blank extrusion die, extruding the convex blanks into concave blanks with equal length and width to obtain composite blanks and rolling. The device comprises a concave billet extrusion die and a convex billet extrusion die, wherein 2 sets of dies comprise an extrusion head, an upper die block, a lower die block, a heating device, a temperature measuring device and a fastening device, the upper die block is matched with the lower die block and is fixed through the fastening device, one side of a space formed between the upper die block and the lower die block is matched with the extrusion head, the other side of the space is an extrusion working area, and the upper die block or/and the lower die block are/is provided with the heating device and the temperature measuring device. The die disclosed by the invention is simple in structure, can realize three-dimensional compounding of the composite material through the convex blank and the concave blank, is stronger in binding force between base materials, is convenient to operate and low in cost, and can better realize industrialization.
Description
Technical Field
The invention belongs to the technical field of processing of metal composite materials, and particularly relates to a method and a device for preparing a composite board by extrusion-rolling compounding.
Background
The composite material is compounded according to various materials with different properties, has incomparable advantages of a single metal material, can retain the self characteristics of the composition material by reasonable material selection and proper combination, and can complement the properties of the composition material by a composite effect to ensure that the composite plate obtains excellent comprehensive properties. Chinese inventions CN106623424A, CN106862271A, etc. disclose methods for preparing laminated composite boards, and the interfaces of the composite boards prepared by these methods are planar. The Chinese invention CN110303079A discloses a cross corrugation rolling method of a bimetal composite board, which prepares the bimetal composite board with a bonding interface of a cross corrugation surface; the Chinese invention CN110238196A discloses a method for rolling three-layer metal composite plate strips by longitudinal waves, which adopts a corrugated roller mill to roll a composite plate blank to obtain a three-layer finished composite plate with a corrugated bonding interface; the Chinese invention CN109731912A discloses a method for rolling and preparing a tooth-shaped joint surface of a titanium/aluminum/magnesium composite plate, which adopts a tooth-shaped roller to roll a tooth-shaped surface on a rolling mill to prepare the composite plate, and the interface of the composite plate prepared by the patents is a curved surface, thereby increasing the binding force among component materials to a certain extent.
Disclosure of Invention
The invention aims to provide a method and a device for preparing a composite board by extrusion-rolling compounding.
The technical scheme of the invention is as follows:
a device for preparing composite plates by extrusion-rolling compounding comprises a concave blank extrusion die and a convex blank extrusion die, wherein 2 sets of dies are respectively composed of an extrusion head, an upper die block, a lower die block, a heating device, a temperature measuring device and a fastening device, the upper die block is matched with the lower die block and is fixed through the fastening device, one side of a space formed between the upper die block and the lower die block is matched with the extrusion head, the other side of the space is an extrusion working area, and the upper die block or/and the lower die block are/is provided with the heating device and the temperature measuring device.
Furthermore, the lower module of the concave billet extrusion die is provided with 1 or more than 2 groove forming blocks, the lower module of the convex billet extrusion die is provided with 1 or more than 2 convex block cavities, and the number of the groove forming blocks is equal to that of the convex block cavities.
Furthermore, the groove forming block and the lug cavity have oblique angles with the same size, and the included angle between the groove forming block and the lug cavity is 45 degrees。-90。。
Furthermore, the size of a convex block cavity is slightly larger than that of the groove forming block, and the widths of the concave blank extrusion die and the convex blank extrusion die are equal.
The method for preparing the composite board by adopting the extrusion-rolling compounding of the device comprises the following steps:
(1) respectively carrying out homogenization treatment on the metal blanks;
(2) adopting a concave blank extrusion die to extrude and prepare a concave blank of the composite blank;
(3) extruding the composite blank by adopting a convex blank extrusion die to prepare a convex blank of the composite blank;
(4) extruding the extruded convex blank into the concave blank to obtain a composite blank;
(5) and rolling the composite blank to obtain the composite plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the method can reduce the steps of degreasing and oxidizing layers before the common compounding method by extruding and generating the new metal surface, the generated new metal surface can be more beneficial to extrusion and rolling compounding, and the binding force of the composite material is good;
2. the convex size of the convex blank is slightly larger than the concave size of the concave blank, so that the two blanks can be combined, and the defect of a composite interface is reduced;
3. the convex blank and the concave blank can realize three-dimensional compounding of the composite material, so that the compounding area and the compounding strength of the blanks are increased;
4. the composite interface of the composite blank can be improved by designing a few-shaped groove forming blocks and bump cavities, and double-layer and multi-layer composite materials can be prepared;
5. the extrusion die has the advantages of simple structure, convenient operation and low cost;
6. the device is provided with the heating device, so that the preheating treatment before extrusion is realized, the plastic deformation capacity of the plate is improved, the temperature of the plate can be detected by transmitting data acquired by the thermocouple to an external temperature measuring device, and the acquired data is transmitted to an external computer system for temperature control.
7. The method can prepare the large-scale composite board with strong interface bonding capability and high board quality by the extrusion and rolling compounding, and can better realize the industrial production.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Wherein: 1. the device comprises a lower module, 2 heating devices, 3 temperature measuring devices, 4 upper modules, 5 fastening devices and 6 extrusion heads.
FIG. 2 is a schematic structural view of a lower die block of a male extrusion die, wherein: 11. the bump is in the cavity.
FIG. 3 is a schematic view of the structure of the lower die block of the female extrusion die, wherein: 12. and (5) forming the block by the groove.
Fig. 4 is a schematic view of a male blank.
FIG. 5 is a schematic view of a female blank.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 3, the device of the invention comprises a concave billet extrusion die and a convex billet extrusion die, wherein 2 sets of dies are respectively composed of a lower die block 1, a heating device 2, a temperature measuring device 3, an upper die block 4, a fastening device 5 and an extrusion head 6, the upper die block 4 is matched with the lower die block 1 and is fixed by the fastening device 5, one side of a space formed between the upper die block 4 and the lower die block 1 is matched with the extrusion head 6, the other side is an extrusion working area, and the heating device 2 and the temperature measuring device 3 are arranged on the upper die block 4 or/and the lower die block 1; the convex billet extrusion die is provided with 1 or more than 2 convex block cavities 11, the lower die block of the concave billet extrusion die is provided with 1 or more than 1 groove forming blocks 12, the number of the groove forming blocks 12 is equal to that of the convex block cavities 11, and the size of the convex block cavities 11 is slightly larger than that of the groove forming blocks 12. The prepared convex blank is shown in figure 4, and the concave blank is shown in figure 5;
example 1
Preparing a composite plate with the thickness of 2mm by extruding-rolling a 7055 and 7N01 aluminum alloy blank with the initial thickness of 10 mm, wherein a lower die block 1 of a concave blank extrusion die is provided with 1 groove forming block, a lower die block 1 of a convex blank extrusion die is provided with 1 convex block cavity 11, and the included angles of the groove forming block 12, the convex block cavity 11 and a horizontal line are 60。。
(1) Homogenizing the 7055 aluminum alloy blank at 400 ℃/12h +465 ℃/24h, and homogenizing the 7N01 aluminum alloy blank at 470 ℃/24 h;
(2) starting the heating device 2, heating the concave blank extrusion die to 420 ℃, and extruding to prepare a concave 7N01 aluminum alloy blank of the composite blank;
(3) starting the heating device 2, heating the convex blank extrusion die to 420 ℃, and extruding to prepare a convex 7055 aluminum alloy blank of the composite blank;
(4) extruding the extruded outer convex 7055 aluminum alloy blank into an inner concave 7N01 aluminum alloy blank to obtain a composite blank;
(5) and (3) preheating the composite blank at the temperature of 420 ℃, preserving the heat for 30 minutes, and rolling the composite blank to prepare the composite board.
Example 2
AZ31 magnesium alloy and 7050 aluminum alloy blanks with the initial thickness of 10 mm are subjected to extrusion-rolling compounding to prepare composite plates with the thickness of 3mm, the lower die block 1 of a concave blank extrusion die is provided with 1 groove forming block, the lower die block 1 of a convex blank extrusion die is provided with 1 convex block cavity 11, and the included angles of the groove forming block 12, the convex block cavity 11 and the horizontal line are 70。。
(1) Homogenizing 7050 aluminum alloy at 470 ℃/24h, and homogenizing AZ31 magnesium alloy at 415 ℃/15 h;
(2) starting the heating device 2, heating the concave billet extrusion die to 420 ℃, and extruding to prepare an inwards concave 7050 aluminum alloy billet of the composite billet;
(3) starting the heating device 2, heating the convex blank extrusion die to 400 ℃, and extruding to prepare a convex AZ31 magnesium alloy blank of the composite blank;
(4) extruding the extruded convex AZ31 magnesium alloy blank into an concave 7050 aluminum alloy blank to obtain a composite blank;
(5) preheating the composite blank at 400 ℃, preserving the heat for 30 minutes, and rolling the composite blank to prepare the composite board.
Example 3
Preparing a composite plate with the thickness of 2mm by extruding-rolling a 7055 and 7N01 aluminum alloy blank with the initial thickness of 10 mm, wherein a lower die block 1 of a concave blank extrusion die is provided with 3 groove forming blocks, a lower die block 1 of a convex blank extrusion die is provided with 3 convex block cavities 11, and the included angles of the groove forming blocks 12, the convex block cavities 11 and a horizontal line are 80。。
(1) Homogenizing 7055 aluminum alloy blanks at 400 ℃/12h +465 ℃/24h, and homogenizing 7N01 aluminum alloy blanks at 470 ℃/24 h;
(2) starting the heating device 2, heating the concave blank extrusion die to 420 ℃, and extruding to prepare a concave 7N01 aluminum alloy blank of the composite blank;
(3) starting the heating device 2, heating the convex blank extrusion die to 420 ℃, and extruding to prepare a convex 7055 aluminum alloy blank of the composite blank;
(4) extruding the extruded outer convex 7055 aluminum alloy blank into an inner concave 7N01 aluminum alloy blank to obtain a composite blank;
(5) and (3) preheating the composite blank at the temperature of 420 ℃, preserving the heat for 30 minutes, and rolling the composite blank to prepare the composite board.
Claims (5)
1. The device for preparing the composite board by extrusion-rolling is characterized by comprising a concave blank extrusion die and a convex blank extrusion die, wherein 2 sets of dies comprise an extrusion head, an upper die block, a lower die block, a heating device, a temperature measuring device and a fastening device, the upper die block is matched with the lower die block and is fixed by the fastening device, one side of a space formed between the upper die block and the lower die block is matched with the extrusion head, the other side of the space is an extrusion working area, and the heating device and the temperature measuring device are arranged on the upper die block or/and the lower die block.
2. The apparatus for extrusion-rolling composite panel according to claim 1, wherein the lower die block of the female billet extrusion die has 1 or 2 or more groove forming blocks, the lower die block of the male billet extrusion die has 1 or 2 or more projection cavities, and the number of the groove forming blocks is equal to that of the projection cavities.
3. The apparatus for extrusion-rolling composite panel according to claim 1, wherein the groove forming block and the projection cavity have equal oblique angles with an angle of 45 ° to 90 ° with the horizontal.
4. The apparatus for extrusion-rolling composite panel according to claim 1, wherein the size of the convex block cavity is slightly larger than that of the concave groove forming block, and the widths of the concave and convex blank extrusion dies are equal.
5. A method for producing a composite sheet by extrusion-rolling compounding using the apparatus of any one of claims 1 to 4, characterized by comprising the steps of:
(1) respectively carrying out homogenization treatment on the metal blanks;
(2) adopting a concave blank extrusion die to extrude and prepare a concave blank of the composite blank;
(3) extruding the composite blank by adopting a convex blank extrusion die to prepare a convex blank of the composite blank;
(4) extruding the extruded convex blank into the concave blank to obtain a composite blank;
(5) and rolling the composite blank to obtain the composite plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313081.XA CN110842046A (en) | 2019-12-18 | 2019-12-18 | Method and device for preparing composite board by extrusion-rolling compounding |
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| CN201911313081.XA CN110842046A (en) | 2019-12-18 | 2019-12-18 | Method and device for preparing composite board by extrusion-rolling compounding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934966A (en) * | 2021-02-24 | 2021-06-11 | 山东济钢鲍德金属复合板科技有限公司 | Rolling method for improving bonding strength of bimetal composite plate |
| CN113020261A (en) * | 2021-03-25 | 2021-06-25 | 太原理工大学 | Rolling method of metal composite plate with prefabricated corrugated interface |
| CN113091515A (en) * | 2021-03-31 | 2021-07-09 | 湖南科技大学 | 'interface interlocking/rib reinforcing' laminated armor aluminum alloy and preparation method thereof |
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| CN113091515A (en) * | 2021-03-31 | 2021-07-09 | 湖南科技大学 | 'interface interlocking/rib reinforcing' laminated armor aluminum alloy and preparation method thereof |
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