CN101450375A - Device and method for preparing copper-clad aluminum-clad core casting ingot - Google Patents
Device and method for preparing copper-clad aluminum-clad core casting ingot Download PDFInfo
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- CN101450375A CN101450375A CNA2008102047401A CN200810204740A CN101450375A CN 101450375 A CN101450375 A CN 101450375A CN A2008102047401 A CNA2008102047401 A CN A2008102047401A CN 200810204740 A CN200810204740 A CN 200810204740A CN 101450375 A CN101450375 A CN 101450375A
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- copper pipe
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Abstract
The invention belongs to the technical field of core casting, which discloses a device and a method for preparing a copper core and an aluminium core casting blank, wherein the device comprises a copper pipe, an omega-shaped clamping head with a hole, a casting box with side holes, an L-shaped injection port. The preparation method comprises the steps of washing, roughening, drying and mounting the inner wall of the copper pipe; throwing the dried charcoal powder from the port of the copper pipe 1; pouring pure aluminium liquid into the L shape injection port to make the pure aluminium liquid enter the copper pipe from the lower part via each sand groove of the casting box with the side holes; naturally cooling the copper pipe to room temperature after insulation; and cutting the copper core and aluminium core casting blank by a saw and trimming the head and the tail to prepare copper core and aluminium core casting blank. The device and the method not only are favourable for controlling dual metal-binding interface, ensuring the stability of blank quality, have low requirement on processing equipments capacity, and have the advantage of simple structure, convenient installation, high efficiency and low cost, and are suitable for large-scale industrial production.
Description
Technical field:
The invention belongs to bag core casting technology field, it relates to a kind of device and method for preparing copper-clad aluminum-clad core casting ingot.
Background technology:
Developing rapidly of industries such as Aeronautics and Astronautics, electronics, metallurgy, automobile, environmental protection, performance and preparation to material are had higher requirement, as having strong mechanical performance, high-termal conductivity, low-thermal-expansion, high conductivity, high-wearing feature, preparation environmental protection, energy savings or the like simultaneously.The metallic composite material that one or more are different combines, and obtains the excellent properties of material requested, can satisfy the new needs of development.
Aluminium is a kind of typical " negative electricity " element, and generally speaking, it and other materials can not form continuous solid solution, brings great difficulty for the preparation of copper aluminum composite material.At present, the method of production of copper alclad composite adopts the solid phase combined techniques mostly, comprise rolling crimping method, clad welded method, continuously extruded coating method and quiet liquid extrusion etc., characteristics are respectively arranged, but these methods all have its weak point, bearing capacity to process equipment requires height, preparation cost height, operation and maintenance difficult etc.In addition, arrive Chinese invention patent by literature search, its patent No. is ZL200610112817.3, this patent disclosure a kind of coating material horizontal continuous casting direct recombination forming apparatus and technology, the equipment of this patent as shown in Figure 1, it comprises core metal temperature control crucible 7, cladding metal temperature-control crucible 8, core metal liquid cast tubes 9, cladding metallic crystal device 10, haulage gear 11, temperature measurer (former figure does not mark), heating element heater (former figure does not mark), secondary cooling apparatus 12, the problem that this equipment and technology exist is: one, complex structure, manufacture difficulty is big, the manufacturing cost height; Its two, bimetallic is restive in conjunction with the interface, blank quality instability.
Summary of the invention:
At above-mentioned defective, the invention provides a kind of device and method for preparing copper-clad aluminum-clad core casting ingot, require height with the bearing capacity that solves process equipment, bimetallic is difficult to control, problems such as device fabrication cost height in conjunction with the interface.
The technical scheme of technical solution problem of the present invention is as follows:
A kind of device for preparing copper-clad aluminum-clad core casting ingot, it is characterized in that it comprise copper pipe 1 its positioned vertical at cast gate 33 places of band side opening sandbox 3 and by both sides by a bolted Ω shape dop 2 with holes clamp, Ω shape dop 2 with holes had both linked to each other with copper pipe 1 and bottom support on band side opening sandbox 3 surfaces, band side opening sandbox 3 not only with Ω shape dop 2 with holes link to each other with copper pipe 1 side but also link to each other with L shaped geat 4, L shaped geat 4 links to each other with the main sand drift groove 31 of being with side opening sandbox 3 by the bottom;
It is outer through D for described copper pipe 1
1Be 50～250mm, wall thickness b
1Be 1～2mm, length H
1Be that 800～1500mm, described Ω shape dop 2 with holes adopt stainless steel material, its incurvature radius r should be complementary with the external diameter of copper pipe 1, thickness w is 2～5mm, foot's length L is that 25～50mm, band side opening sandbox 3 are shaped as rectangle, inside is provided with main sand flow groove 31 and sub-sand chute 32, sub-sand chute 32 is in the both sides of main sand flow groove 31 symmetrically and evenly and distributes, the center line of main sand flow groove 31 and copper pipe 1 lower end apart from t
1Be 5～15mm, its cast gate 33 is a sub marine gate, cast gate 33 quantity be 8～28 should be complementary with the quantity of copper pipe 1, described L shaped geat 4 adopts stainless steel materials, the end is provided with funnel, L shaped geat 4 outer through D
2Be 100～400mm, wall thickness b
2Be 1～3mm, height H
2Be 900～1600mm, the vertical center line of L shaped geat 4 and band side opening sandbox 3 outer lateral extent t
2Be 120～450mm;
Described a kind of method for preparing the device of copper-clad aluminum-clad core casting ingot is characterized in that realizing as follows:
(1) before casting, need strictness to clean up every copper pipe 1 inwall with alkali, water, and inwall is rotated hacking with emery cloth, cleaning, drying again behind the hacking, the every copper pipe 1 that will clean then aim at that the cast gate 33 of band side opening sandbox 3 is vertical to be inserted and reinforce by the Ω shape dop 2 with holes that surperficial both sides are reinforced by bolt;
(2) charcoal powder 5 after the oven dry being made its thickness from the oral area input of above-mentioned every copper pipe 1 is 20～30mm;
(3) the fine aluminium piece is heated to 750～800 ℃ and becomes the L shaped geat 4 of the fine aluminium liquid 6 injections main sand flow groove 31 of inflow earlier, flow into each sub-sand chute 32 then successively, and enter from the below by the ready every copper pipe 1 of step (1) by cast gate 33, can pour into 8～28 copper pipes 1 simultaneously;
(4) naturally cool to room temperature after being incubated 18～22h then;
(5) under the sawing foundry goods and the portion that trims end to end to make copper-clad aluminum-clad core casting ingot.
Advantage compared with prior art of the present invention is as follows:
Preparation facilities of the present invention is rational in infrastructure, and is easy for installation, easy and simple to handle, with low cost, can produce many copper cover aluminum blanks simultaneously, the production efficiency height, and low cost of manufacture, applicability is strong;
Method of the present invention is different from the solid phase combined techniques, the compound blank-making method of horizontal casting that also is different from the liquid phase combination, be solid phase and the combining of liquid phase, processing technology is simplified, and the Cu-Al bimetal combination interface is firm, guarantee the blank quality of stability, less demanding to process equipment, be easy to control, better improved product quality, reduce production cost, satisfied application need.
Description of drawings:
Fig. 1 is existing a kind of coating material horizontal continuous casting direct recombination forming apparatus structural representation
Among Fig. 1,7-core metal temperature control crucible, 8-cladding metal temperature-control crucible, 9-core metal liquid cast tubes, 10-cladding metallic crystal device, 11-haulage gear, 12-secondary cooling apparatus
Fig. 2 is a kind of device schematic diagram for preparing copper-clad aluminum-clad core casting ingot of the present invention
Fig. 3 is the present invention's Ω shape with holes dop schematic diagram
Fig. 4 (a) is the generalized section of band side opening sandbox of the present invention
Fig. 4 (b) is that band side opening sandbox E-E of the present invention is to generalized section
Among Fig. 2, Fig. 3, Fig. 4 (a), Fig. 4 (b), 1-copper pipe, D
1-copper pipe external diameter, b
1-copper pipe wall thickness, H
1-copper pipe length, 2-Ω shape dop with holes, 3-band side opening sandbox, 31-main sand flow groove, t
1The center line of-main sand flow groove and the distance of copper pipe lower end, 32 sub-sand chutes, 33-cast gate, 4-L shaped geat, D
2-external diameter, b
2-wall thickness, H
2-length, t
2The vertical center line of-L shaped geat and the distance of being with the side opening sandbox outside, 5-charcoal powder, 6-fine aluminium liquid
The specific embodiment:
A kind of device for preparing copper-clad aluminum-clad core casting ingot shown in Fig. 2, Fig. 3, Fig. 4 (a), Fig. 4 (b), it is characterized in that it comprise copper pipe 1 its positioned vertical at cast gate 33 places of band side opening sandbox 3 and by both sides by a bolted Ω shape dop 2 with holes clamp, Ω shape dop 2 with holes had both linked to each other with copper pipe 1 and bottom support on band side opening sandbox 3 surfaces, band side opening sandbox 3 not only with Ω shape dop 2 with holes link to each other with copper pipe 1 side but also link to each other with L shaped geat 4, L shaped geat 4 links to each other with the main sand drift groove 31 of being with side opening sandbox 3 by the bottom;
It is outer through D for described copper pipe 1
1Be 50～250mm, wall thickness b
1Be 1～2mm, length H
1Be that 800～1500mm, described Ω shape dop 2 with holes adopt stainless steel material, its incurvature radius r should be complementary with the external diameter of copper pipe 1, thickness w is 2～5mm, foot's length L is that 25～50mm, band side opening sandbox 3 are shaped as rectangle, inside is provided with main sand flow groove 31 and sub-sand chute 32, sub-sand chute 32 is in the both sides of main sand flow groove 31 symmetrically and evenly and distributes, the center line of main sand flow groove 31 and copper pipe 1 lower end apart from t
1Be 5～15mm, its cast gate 33 is a sub marine gate, cast gate 33 quantity be 8～28 should be complementary with the quantity of copper pipe 1, described L shaped geat 4 adopts stainless steel materials, the end is provided with funnel, L shaped geat 4 outer through D
2Be 100～400mm, wall thickness b
2Be 1～3mm, height H
2Be 900～1600mm, the vertical center line of L shaped geat 4 and band side opening sandbox 3 outer lateral extent t
2Be 120～450mm;
Described a kind of method for preparing the device of copper-clad aluminum-clad core casting ingot is characterized in that realizing as follows:
(1) before casting, need strictness to clean up every copper pipe 1 inwall with alkali, water, and inwall is rotated hacking with emery cloth, cleaning, drying again behind the hacking, the every copper pipe 1 that will clean is then aimed at the cast gate 33 vertical insertions of band side opening sandbox 3 and is reinforced by the Ω shape dop 2 with holes that surperficial both sides are reinforced by bolt, purpose is to make fine aluminium liquid 6 can combine preferably with copper pipe 1, strengthens the adhesion at Cu-Al bimetal interface;
(2) charcoal powder 5 after the oven dry being made its thickness from the oral area input of above-mentioned every copper pipe 1 is 20～30mm, and effect is secluding air and impurity, prevents bubble and is mingled with;
(3) the fine aluminium piece is heated to 750～800 ℃ and becomes the L shaped geat 4 of the fine aluminium liquid 6 injections main sand flow groove 31 of inflow earlier, flow into each sub-sand chute 32 then successively, and enter from the below by the ready every copper pipe 1 of step (1) by cast gate 33, can pour into 8～28 copper pipes 1 simultaneously;
(4) naturally cool to room temperature after being incubated 18～22h then, but effect is to make phase counterdiffusion between the Cu-Al bimetal constituent element, to form the diffusion layer of fine grain structure, the interface combination of reinforcing material to a certain extent improves interface bond strength;
(5) under the sawing foundry goods and the portion that trims end to end to make copper-clad aluminum-clad core casting ingot.
Further specify the present invention below by specific embodiment, but embodiment only limits to explanation, can not limit the scope of the invention.
Embodiment 1: prepare 10 copper-clad aluminum-clad core casting ingots that length is 1000mm
(1) be that copper pipe 1 inwall of 1100mm before casting need strict with alkali, water clean up for the 50mm wall thickness for 1mm length with 10 external diameters, and inwall is rotated hacking with emery cloth, cleaning, drying again behind the hacking, 10 copper pipes 1 that will clean then aim at respectively that 10 cast gates 33 of band side opening sandbox 3 are vertical to be inserted and reinforce respectively by the Ω shape dop 2 with holes that surperficial both sides are reinforced by bolt;
(2) the oral area input of the charcoal powder 5 after the oven dry from above-mentioned every copper pipe 1, making its thickness is 20mm;
(3) the fine aluminium piece being heated to 750 ℃ becomes the L shaped geat 4 of the fine aluminium liquid 6 injections main sand flow groove 31 of inflow earlier, flows into each sub-sand chute 32 then successively, and enters from the below by ready 10 copper pipes 1 of step (1) by cast gate 33;
(4) naturally cool to room temperature after being incubated 18h then;
(5) following 10 foundry goods of sawing and the portion end to end of trimming are with copper-clad aluminum-clad core casting ingot that to make 10 length be 1000mm.
Embodiment 2: prepare 28 copper-clad aluminum-clad core casting ingots that length is 1400mm
(1) be that copper pipe 1 inwall of 1500mm before casting need strict with alkali, water clean up for the 250mm wall thickness for 2mm length with 28 external diameters, and inwall is rotated hacking with emery cloth, cleaning, drying again behind the hacking, 28 copper pipes 1 that will clean then aim at respectively that 28 cast gates 33 of band side opening sandbox 3 are vertical to be inserted and reinforce respectively by the Ω shape dop 2 with holes that surperficial both sides are reinforced by bolt;
(2) the oral area input of the charcoal powder 5 after the oven dry from above-mentioned every copper pipe 1, making its thickness is 30mm;
(3) the fine aluminium piece being heated to 800 ℃ becomes the L shaped geat 4 of the fine aluminium liquid 6 injections main sand flow groove 31 of inflow earlier, flows into each sub-sand chute 32 then successively, and enters from the below by ready 28 copper pipes 1 of step (1) by cast gate 33;
(4) naturally cool to room temperature after being incubated 22h then;
(5) following 28 foundry goods of sawing and the portion end to end of trimming are with copper-clad aluminum-clad core casting ingot that to make 28 length be 1400mm.
Claims (3)
1, a kind of device for preparing copper-clad aluminum-clad core casting ingot, it is characterized in that it comprise that its positioned vertical of copper pipe (1) is located and clamped by a bolted Ω shape dop with holes (2) by both sides at the cast gate (33) of band side opening sandbox (3), Ω shape dop with holes (2) had both linked to each other with copper pipe (1) and bottom support on band side opening sandbox (3) surface, be with side opening sandbox (3) not only with Ω shape dop with holes (2) link to each other with copper pipe (1) side but also link to each other with L shaped geat (4), L shaped geat (4) links to each other with the main sand drift groove (31) of being with side opening sandbox (3) by the bottom.
2, a kind of device for preparing copper-clad aluminum-clad core casting ingot according to claim 1, it is outer through (D to it is characterized in that described copper pipe (1)
1) be 50～250mm, wall thickness (b
1) be 1～2mm, length (H
1) be that 800～1500mm, described Ω shape dop with holes (2) adopt stainless steel material, its incurvature radius (r) should be complementary with the external diameter of copper pipe (1), thickness (w) is 2～5mm, foot's length (L) is that 25～50mm, band side opening sandbox (3) are shaped as rectangle, inside is provided with main sand flow groove (31) and sub-sand chute (32), sub-sand chute (32) is distribution symmetrically and evenly, the distance (t of the center line of main sand flow groove (31) and copper pipe (1) lower end in the both sides of main sand flow groove (31)
1) be 5～15mm, its cast gate (33) is a sub marine gate, the quantity of cast gate (33) be 8～28 should be complementary with the quantity of copper pipe (1), described L shaped geat (4) adopts stainless steel material, the end is provided with funnel, the outer warp (D of L shaped geat (4)
2) be 100～400mm, wall thickness (b
2) be 1～3mm, highly (H
2) be 900～1600mm, the vertical center line of L shaped geat (4) and the outer lateral extent (t of band side opening sandbox (3)
2) be 120～450mm.
3, a kind of method for preparing the device of copper-clad aluminum-clad core casting ingot according to claim 1 and 2 is characterized in that realizing as follows:
(1) before casting, need strictness to clean up every copper pipe (1) inwall with alkali, water, and inwall is rotated hacking with emery cloth, cleaning, drying again behind the hacking, the cast gate (33) that the every copper pipe (1) that will clean is then aimed at band side opening sandbox (3) vertically inserts and reinforces by the Ω shape dop with holes (2) that surperficial both sides are reinforced by bolt;
(2) charcoal powder (5) after the oven dry being made its thickness from the oral area input of copper pipe (1) respectively is 20～30mm;
(3) the fine aluminium piece being heated to 750～800 ℃ becomes fine aluminium liquid (6) and injects L shaped geat (4) and flow into earlier main sand flow groove (31), flow into each sub-sand chute (32) then successively, and (33) enter by the ready every copper pipe of step (1) (1) from the below by cast gate, can pour into 8～28 copper pipes (1) simultaneously;
(4) naturally cool to room temperature after being incubated 18～22h then;
(5) under the sawing foundry goods and the portion that trims end to end to make copper-clad aluminum-clad core casting ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102047401A CN101450375B (en) | 2008-12-17 | 2008-12-17 | Device and method for preparing copper-clad aluminum-clad core casting ingot |
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| CN2008102047401A CN101450375B (en) | 2008-12-17 | 2008-12-17 | Device and method for preparing copper-clad aluminum-clad core casting ingot |
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| CN101450375A true CN101450375A (en) | 2009-06-10 |
| CN101450375B CN101450375B (en) | 2011-05-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184763A (en) * | 2011-03-07 | 2011-09-14 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN110303139A (en) * | 2019-07-01 | 2019-10-08 | 西安工程大学 | The preparation method of special-shaped bent hole in a kind of pre-buried method metal |
-
2008
- 2008-12-17 CN CN2008102047401A patent/CN101450375B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184763A (en) * | 2011-03-07 | 2011-09-14 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN102184763B (en) * | 2011-03-07 | 2013-01-02 | 吴江市中信科技有限公司 | Copper pipe inner wall dehairer |
| CN110303139A (en) * | 2019-07-01 | 2019-10-08 | 西安工程大学 | The preparation method of special-shaped bent hole in a kind of pre-buried method metal |
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| Publication number | Publication date |
|---|---|
| CN101450375B (en) | 2011-05-25 |
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Granted publication date: 20110525 Termination date: 20121217 |