CN112238150A - Continuous extrusion equipment and use method thereof - Google Patents
Continuous extrusion equipment and use method thereof Download PDFInfo
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- CN112238150A CN112238150A CN201910648318.3A CN201910648318A CN112238150A CN 112238150 A CN112238150 A CN 112238150A CN 201910648318 A CN201910648318 A CN 201910648318A CN 112238150 A CN112238150 A CN 112238150A
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- extrusion
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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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/22—Making metal-coated products; Making products from two or more metals
- B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
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Abstract
The invention relates to continuous extrusion equipment and a using method thereof, belonging to the technical field of extrusion equipment, and comprising a lateral extrusion wheel for laterally extruding a blank and a clad rolling mill for rolling and compounding the blank, wherein the lateral extrusion wheel is arranged in front of the clad rolling mill; the lateral extrusion device comprises a pair of lateral extrusion wheels, the axial lines of the lateral extrusion wheels are perpendicular to the axial direction of the composite extrusion wheels, and the axial lines of the composite extrusion wheels are parallel to the horizontal plane. The invention can efficiently and continuously produce the lateral continuous composite copper-aluminum strip material, the lateral continuous composite copper-aluminum composite material can be efficiently punched into a large number of copper-aluminum conducting bars, the quality is reliable, nondestructive detection is easy, the consistency, the stability and the reliability are good, a large amount of equipment investment and redundant personnel can be saved, and the production automation degree is high.
Description
The invention relates to the technical field of extrusion equipment, in particular to continuous extrusion equipment and a using method thereof.
Background
Compared with the processing methods such as rolling, drawing and the like, the biggest defects of the conventional extrusion, such as forward extrusion, backward extrusion, hydrostatic extrusion and the like, are discontinuous production, long non-productive gap time and large influence on production efficiency. The proportion of geometric waste (discard and crop and tail) produced by extrusion is greatly increased, and the yield is reduced.
The field of extrusion has long been working to reduce as much as possible the unproductive gap time in the extrusion cycle and at the same time to reduce extrusion production geometry scrap. With the advancement of technology, continuous extrusion of conform has been proposed and widely used. The principle is as follows: the billet is continuously fed by active friction of the grooved surface of the extrusion wheel to extrude the product through a die mounted on the extrusion shoe. The continuous extrusion method can obviously reduce the intermittent non-production time and improve the production efficiency.
A large number of copper-aluminum busbars are connected in the power and battery pack industry. Copper-aluminum composites have been extensively studied and developed for their excellent properties. At present, the conventional method for producing copper-aluminum composite materials in China is welding by various physical principles, namely, copper and aluminum parts are welded into copper-aluminum electric connection parts one by one, and the manufacturing method needs a large amount of personnel and welding equipment, and is low in efficiency and high in cost.
Disclosure of Invention
The invention aims to provide continuous extrusion equipment and a using method thereof, which are used for continuously and laterally compounding copper aluminum plate strip materials and can realize efficient and continuous production.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a continuous extrusion device comprises a lateral extrusion wheel for laterally extruding a blank and a clad-rolling mill for rolling and cladding the blank, wherein the lateral extrusion wheel is arranged in front of the clad-rolling mill; the lateral extrusion device comprises a pair of lateral extrusion wheels, the axis of each lateral extrusion wheel is perpendicular to the axis of each composite extrusion wheel, and the axis of each composite extrusion wheel is parallel to the horizontal plane.
Furthermore, the compound rolling mill also comprises a pinch roller, an extrusion shoe, a die cavity, a plug, a groove sealing block and a die, wherein a groove is formed in the surface of the compound extrusion wheel;
the extrusion shoe is fixed, the groove sealing block is fixedly arranged at the groove of the extrusion shoe to form an extrusion cavity, and the plug and the die are arranged at the outlet of the extrusion cavity.
Or, there are two composite extrusion wheels, and the two composite extrusion wheels are arranged up and down.
Furthermore, an annular groove matched with the thickness of the blank is formed in the outer circular surface of the lateral extrusion wheel.
Furthermore, the continuous extrusion equipment also comprises two guide wheels which are arranged up and down, the axis of each guide wheel is vertical to the axis of the lateral extrusion wheel, and the guide wheels are arranged in front of the lateral extrusion wheel.
The method for laterally and continuously compounding the copper-aluminum strip by using the continuous extrusion equipment comprises the following steps,
and 4, continuously feeding the lateral connecting strip into a compound rolling mill, extruding and compounding the lateral connecting strip into a strip by the compound rolling mill, and sending out the strip, thereby obtaining a lateral continuous compound extrusion product.
Furthermore, the side surface of the aluminum plate strip is provided with aluminum mortises along the length direction, the aluminum mortises penetrate through two end surfaces of the aluminum plate strip, two aluminum mortises are arranged at intervals up and down, and one side of the copper plate strip is provided with copper tenons matched with the aluminum mortises; an aluminum tenon is formed between the two aluminum mortises, and a copper mortise is formed between the two copper tenons;
in the step 1, the direction of the notch of the aluminum mortise and the direction of the notch of the copper mortise are oppositely arranged;
and in the step 3, two copper tenons are respectively arranged in one of the aluminum mortises, and the aluminum tenons are arranged in the copper mortises so as to connect the copper plate strip and the aluminum plate strip together to form the lateral connecting strip.
Further, in the step 2, the copper plate strip and the aluminum plate strip are limited in the annular grooves of the lateral extrusion wheels.
Furthermore, a corresponding cross-sectional structure is manufactured by machining or laminating in a mechanical processing or laminating mode.
Compared with the prior art, the invention has the following beneficial effects:
the invention can efficiently and continuously produce the lateral continuous composite copper-aluminum strip material, the lateral continuous composite copper-aluminum composite material can be efficiently punched into a large number of copper-aluminum conducting bars, the quality is reliable, nondestructive detection is easy, the consistency, the stability and the reliability are good, a large amount of equipment investment and redundant personnel can be saved, and the production automation degree is high.
Drawings
FIG. 1 is a front view of the first embodiment;
FIG. 2 is a top partial cross-sectional view of the first embodiment;
FIG. 3 is a schematic structural view of a lateral pressing wheel;
FIG. 4 is a three-dimensional view of a copper strip;
FIG. 5 is a three-dimensional view of an aluminum strip;
FIG. 6 is a schematic view of the blank as it is fed between the lateral pressing wheels;
FIG. 7 is a schematic view of the billet after it has been extruded by the lateral extrusion wheel;
FIG. 8 is a front view of the second embodiment;
FIG. 9 is a side view of the second embodiment;
FIG. 10 is a schematic view of a coextrusion wheel according to a second embodiment;
FIG. 11 is a cross-sectional view of a laterally continuous composite copper-aluminum composite;
in the figure: 1-composite rolling mill, 2-lateral extrusion wheel, 3-guide wheel, 4-copper plate strip, 5-aluminum plate strip, 6-lateral connecting strip, 7-lateral continuous composite extrusion product, 11-composite extrusion wheel, 12-extrusion shoe, 13-pressing wheel, 14-plug, 15-groove sealing block, 21-annular groove, 41-copper tenon, 42-copper mortise, 51-aluminum tenon and 52-aluminum mortise.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, 2 and 3, the continuous extrusion apparatus disclosed in the present embodiment includes a lateral extrusion wheel 2 for laterally extruding a billet and a clad-rolling mill 1 for roll-cladding the billet, and the lateral extrusion wheel 2 is disposed in front of the clad-rolling mill 1. The lateral pressing wheels 2 are paired.
In this embodiment, the compound rolling mill 1 includes a compound extrusion wheel 11, a pinch roller 13, an extrusion shoe 12, a mold cavity, a plug 14, a groove sealing block 15 and a mold, and a groove is formed on the surface of the compound extrusion wheel 11; the extrusion shoe 12 is fixed, the groove sealing block 15 is fixedly arranged at the groove of the extrusion shoe to form an extrusion cavity, and the plug 14 and the die are arranged at the outlet of the extrusion cavity. The axial line of the lateral extrusion wheel 2 is vertical to the axial direction of the composite extrusion wheel 11, and the axial line of the composite extrusion wheel 11 is parallel to the horizontal plane. Of course, the lateral extrusion wheel 2 and the compound extrusion wheel 11 are connected to a drive system, which is conventional in the art and will not be described in detail herein. The pressure of the lateral extrusion wheel 2 is lower than that of the compound extrusion wheel 11.
Preferably, the lateral extrusion wheel 2 has an annular groove 21 on its outer circumferential surface adapted to the thickness of the billet. The spacing distance of the lateral extrusion wheels 2 is set according to the width of the strip; the width of the annular groove 21 is set according to the thickness of the strip.
The continuous extrusion equipment further comprises two guide wheels 3 which are arranged up and down, the axis of each guide wheel 3 is perpendicular to the axis of the lateral extrusion wheel 2, and the guide wheels 3 are arranged in front of the lateral extrusion wheel 2. In operation, the direction of rotation of the two guide wheels 3 coincides with the direction of rotation of the co-extrusion wheel 11. Two guide wheels 3 are used to push the strip towards the lateral pressing wheel 2.
The use method of the continuous extrusion equipment is described below by taking the lateral continuous composite copper-aluminum strip as an example and combining the attached drawings 1 and 2.
As shown in fig. 4 and 5, the side surface of the aluminum plate strip 5 is provided with aluminum mortises 52 along the length direction thereof, the aluminum mortises 52 penetrate through two end surfaces of the aluminum plate strip 5, and at least one aluminum mortise 52 is arranged at intervals up and down; preferably, there are two aluminum mortises 52. One side of the copper strip 4 is provided with a copper tenon 41 matched with the aluminum mortise 52. An aluminum tenon 51 is formed between the two aluminum mortises 52, and a copper mortise 42 is formed between the two copper tenons 41.
Preparation of copper strip 4 and aluminum strip 5: taking a copper and aluminum plate strip blank with the thickness of 1-15 mm, machining or laminating by adopting a mechanical means, and machining or laminating to obtain a corresponding cross-sectional structure.
The use method of the continuous extrusion equipment comprises the following steps;
And 3, extruding the copper plate strip 4 and the aluminum plate strip 5 towards the middle by the two lateral extrusion wheels 2, and moving the copper plate strip 4 and the aluminum plate strip 5 towards each other, so that the two aluminum copper tenons 41 are respectively arranged in one of the aluminum mortises 52, the aluminum tenon 51 is arranged in the copper mortise 42, and the copper plate strip 4 and the aluminum plate strip 5 are connected together to form the lateral connecting strip 6.
And 4, as shown in fig. 1 and 2, the lateral extrusion wheel 2 extrudes the copper plate strip 4 and the aluminum plate strip 5, and simultaneously, the lateral connecting strip 6 is continuously fed into the groove on the surface of the composite extrusion wheel 11 of the composite rolling mill 1. The lateral connecting strip 6 is bitten by the composite extrusion wheel 11 and the pressing wheel 13, enters the die cavity under the action of the friction force of the groove wall of the composite extrusion wheel 11, begins to deform in the die cavity when meeting two metals of the plug, is compounded under the conditions of huge friction heat and high extrusion force, and is finally formed through the die hole, so that the lateral continuous composite extrusion product 7 is obtained.
Example two
The difference between this embodiment and the first embodiment is: as shown in fig. 8 and 9, the compound rolling mill 1 of the present embodiment has two compound extrusion wheels 11, and the two compound extrusion wheels 11 are disposed up and down. The using method comprises the following steps;
And 3, extruding the copper plate strip 4 and the aluminum plate strip 5 towards the middle by the two lateral extrusion wheels 2, and moving the copper plate strip 4 and the aluminum plate strip 5 towards each other, so that the two aluminum copper tenons 41 are respectively arranged in one of the aluminum mortises 52, the aluminum tenon 51 is arranged in the copper mortise 42, and the copper plate strip 4 and the aluminum plate strip 5 are connected together to form the lateral connecting strip 6.
And 4, continuously feeding the lateral connecting strip 6 into the compound rolling mill 1, and extruding the lateral connecting strip 6 up and down by two compound extrusion wheels 11 of the compound rolling mill 1 as shown in fig. 10 to obtain a lateral continuous compound extrusion product 7.
The invention can efficiently and continuously produce the lateral continuous composite copper-aluminum strip material, the lateral continuous composite copper-aluminum composite material can be efficiently punched into a large number of copper-aluminum conducting bars, the quality is reliable, nondestructive detection is easy, the consistency, the stability and the reliability are good, a large amount of equipment investment and redundant personnel can be saved, and the production automation degree is high.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (9)
1. A continuous extrusion apparatus, characterized by: the device comprises a lateral extrusion wheel for laterally extruding a blank and a clad rolling mill for rolling and compounding the blank, wherein the lateral extrusion wheel is arranged in front of the clad rolling mill; the lateral extrusion device comprises a pair of lateral extrusion wheels, the axis of each lateral extrusion wheel is perpendicular to the axis of each composite extrusion wheel, and the axis of each composite extrusion wheel is parallel to the horizontal plane.
2. Continuous extrusion apparatus according to claim 1, characterized in that: the compound rolling mill also comprises a pressing wheel, an extrusion shoe, a die cavity, a plug, a groove sealing block and a die, wherein a groove is formed in the surface of the compound extrusion wheel;
the extrusion shoe is fixed, the groove sealing block is fixedly arranged at the groove of the extrusion shoe to form an extrusion cavity, and the plug and the die are arranged at the outlet of the extrusion cavity.
3. Continuous extrusion apparatus according to claim 1, characterized in that: the number of the composite extrusion wheels is two, and the two composite extrusion wheels are arranged up and down.
4. Continuous extrusion apparatus according to claim 2 or 3, wherein: and an annular groove matched with the thickness of the blank is formed in the outer circular surface of the lateral extrusion wheel.
5. Continuous extrusion apparatus according to claim 2, 3 or 5, characterised in that: the extrusion device also comprises two guide wheels which are arranged up and down, the axes of the guide wheels are vertical to the axes of the lateral extrusion wheels, and the guide wheels are arranged in front of the lateral extrusion wheels.
6. The method for laterally and continuously compounding the copper-aluminum strip by using the continuous extrusion equipment as claimed in any one of claims 1 to 5, is characterized in that: comprises the following steps of (a) carrying out,
step 1, placing a copper plate belt and an aluminum plate belt in parallel left and right;
step 2, simultaneously feeding the front ends of the copper plate strip and the aluminum plate strip into a space between two lateral extrusion wheels;
step 3, extruding the copper plate strip and the aluminum plate strip towards the middle by the two lateral extrusion wheels to enable the copper plate strip and the aluminum plate strip to move oppositely and contact with each other, so that a lateral connection strip is formed;
and 4, continuously feeding the lateral connecting strip into a compound rolling mill, extruding and compounding the lateral connecting strip into a strip by the compound rolling mill, and sending out the strip, thereby obtaining a lateral continuous compound extrusion product.
7. The method of claim 6, wherein: the side surface of the aluminum plate strip is provided with aluminum mortises along the length direction, the aluminum mortises penetrate through two end surfaces of the aluminum plate strip, two aluminum mortises are arranged at intervals up and down, and one side of the copper plate strip is provided with copper tenons matched with the aluminum mortises; an aluminum tenon is formed between the two aluminum mortises, and a copper mortise is formed between the two copper tenons;
in the step 1, the direction of the notch of the aluminum mortise and the direction of the notch of the copper mortise are oppositely arranged;
and in the step 3, two copper tenons are respectively arranged in one of the aluminum mortises, and the aluminum tenons are arranged in the copper mortises so as to connect the copper plate strip and the aluminum plate strip together to form the lateral connecting strip.
8. The method according to claim 6 or 7, characterized in that: in the step 2, the copper plate strip and the aluminum plate strip are limited in the annular grooves of the lateral extrusion wheels.
9. The method of claim 7, wherein: preparing a copper plate strip and an aluminum plate strip: and machining or laminating by adopting a mechanical means to obtain a corresponding cross-sectional structure by machining or laminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648318.3A CN112238150B (en) | 2019-07-18 | 2019-07-18 | Continuous extrusion equipment and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910648318.3A CN112238150B (en) | 2019-07-18 | 2019-07-18 | Continuous extrusion equipment and use method thereof |
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| CN112238150A true CN112238150A (en) | 2021-01-19 |
| CN112238150B CN112238150B (en) | 2022-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228959A (en) * | 2022-07-18 | 2022-10-25 | 山东大学 | Integral extrusion forming equipment for large-size component |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115228959A (en) * | 2022-07-18 | 2022-10-25 | 山东大学 | Integral extrusion forming equipment for large-size component |
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