CN100493754C - Magnesium alloy wire diffusion-connection continuous extrusion method - Google Patents
Magnesium alloy wire diffusion-connection continuous extrusion method Download PDFInfo
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- CN100493754C CN100493754C CNB2007101578748A CN200710157874A CN100493754C CN 100493754 C CN100493754 C CN 100493754C CN B2007101578748 A CNB2007101578748 A CN B2007101578748A CN 200710157874 A CN200710157874 A CN 200710157874A CN 100493754 C CN100493754 C CN 100493754C
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- magnesium alloy
- alloy ingot
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Abstract
The invention belongs to a technique field of non-ferrous metal plasticity formation, which relates to a continuous extrusion process of electron wires. The utility model employs an extruded cylinder, a squeezing die, a squeezing shaft, a heat-insulating cylinder, a presser, and the like, which is characterized in that the upper end of the squeezing shaft is fixed on the presser, the squeezing die is positioned in the extruded cylinder, graphite powders are dusted on the inner wall of the extruded cylinder, and further the heat-insulating cylinder is sleeved. The utility model preheats the extruded cylinder to 450 to 500 DEG C through the heat-insulating cylinder, heats the electron bars which are ready to be extruded to 500 to 550 DEG C and insulates for more than 30 minutes, putting one electron bar into the extruded cylinder, controlling the presser to squeeze, when electron bars with certain heights exsist between the squeezing die and the squeezing shaft, lifting the squeezing shaft, adding a electron bar into the extruded cylinder, and repeating the extrusion process. The utility model employs the diffusion connection mechanism of electrons, provides an efficient continuous extrusion process of the electron wires. The utility model has the advantages of easy operation and high production efficiency, and is applicable to every kind of pressers.
Description
Technical field
The invention belongs to technical field of nonferrous metal plastic molding, relate to the continuous squeezing method of Mg alloy wire.
Background technology
Required welding wire mainly passes through casting and two kinds of method productions of hot extrusion in the magnesium alloy welding process at present, and the welding wire quality of hot extrusion method production is better than casting.
National inventing patent ZL03111456.3 discloses a kind of Mg alloy wire continuous squeezing method, be to put into electric furnace heating and insulation together with pad after magnesium alloy ingot, the hot extrude last item of extrusion die, outsourcing graphite flake are put into the recipient compacting successively, on the hot extrude last item, place the cold-extruded last item, on forcing press, push then.Utilize this method, after finishing the extruding of a magnesium alloy ingot, be difficult to the hot extrude last item be taken out from recipient top at once, also to clear up before adding new magnesium alloy ingot mould, owing to be subjected to the restriction of the volume of magnesium alloy ingot, Mg alloy wire limited length with the each extruding of this method obtains can't really realize the continuous production of Mg alloy wire.
Summary of the invention
The diffusion-connection continuous extrusion method that the purpose of this invention is to provide a kind of Mg alloy wire, this method realizes continuous wire vent by the diffusion connection of continuous adding magnesium alloy ingot, thereby realize the continuous production of Mg alloy wire, raise the efficiency, satisfy industrial needs.
Technical scheme of the present invention is: a kind of diffusion-connection continuous extrusion method of Mg alloy wire, adopt recipient, extrusion die, extrusion axis, pad, base, heat-preservation cylinder and forcing press etc., it is characterized in that, the extrusion axis upper end is fixed on the forcing press, extrusion die is put into recipient and is compressed, sprinkle graphite powder at the recipient inwall, then recipient is placed on the base together with pad, put heat-preservation cylinder, by heat-preservation cylinder recipient is preheated to 450～500 ℃, extrusion axis and recipient are carried out centering; Simultaneously magnesium alloy ingot to be extruded is heated to 500～550 ℃ and be incubated more than 30 minutes; A magnesium alloy ingot that heats and be incubated is put into recipient, and the controlled pressure machine begins extruding; When also retaining the magnesium alloy ingot of certain altitude between extrusion axis and the extrusion die, rise extrusion axis, in recipient, add a magnesium alloy ingot that heats and be incubated again, repeat extrusion process; Make the magnesium alloy ingot temperature maintenance at 500～550 ℃ by regulating heat-preservation cylinder;
Add the magnesium alloy ingot height H that the preceding extrusion die of magnesium alloy ingot top retains again
1Scope is: greater than 6 millimeters, less than the high H of recipient
2Deduct the high H of extrusion die
3, deduct initiate magnesium alloy ingot height H again
4
Of the present inventionly further be characterized as: add the magnesium alloy ingot height H that the extrusion die top retains before the magnesium alloy ingot again
1Be 6-25 millimeters, the extruding force of forcing press is 3-25Mpa during the extrusion magnesium alloy ingot.
Magnesium alloy under 500～550 ℃ of high temperature is in semisolid, under the extruding force effect, plastic deformation has taken place in two magnesium alloy ingot interface metals on every side up and down, the reorganization of crystallization again takes place in tissue, atomic migration and grain growth take place at the interface, impelled moving of interface, the joint surface atom fully spreads, thereby two magnesium alloy ingots are linked together, realized that diffusion connects.Add before the new magnesium alloy ingot,, just can satisfy the needs of realizing that diffusion connects as long as the extrusion die top retains small amount of magnesium alloy (6-25 millimeters of height).
Recipient, extrusion die, extrusion axis, pad and base all can adopt hot die steel to make according to certain size, and heat-preservation cylinder is made according to dimensional requirement, and makes temperature-adjustable; Cylindrical magnesium alloy ingot is cast in industrial attitude magnesium alloy blank fusing, and removed surface scale and impurity, the diameter of magnesium alloy ingot is littler 1-2 millimeters than internal diameter of the container; By the insulation of heat-preservation cylinder, can satisfy the temperature requirement of magnesium alloy ingot to magnesium alloy ingot; Press pressure can be controlled in 5-50Mpa, is preferably 3-25Mpa; In the extrusion process between extrusion axis and the extrusion die magnesium alloy ingot height be: the high H of recipient
2Deduct the high H of extrusion die
3, deduct the length L that extrusion axis is pressed into recipient again.
The present invention utilizes the diffusion of magnesium alloy to connect mechanism, and a kind of effective Mg alloy wire continuous squeezing method is provided, and easy and simple to handle, the production efficiency height is applicable to various forcing presses.
Description of drawings
Fig. 1 is an installation drawing of the present invention.
1 is recipient among the figure, and 2 is magnesium alloy ingot, and 3 is extrusion die, and 4 is extrusion axis, and 5 is heat-preservation cylinder, and 6 is pad, and 7 is base.
Fig. 2 is I-I cutaway view of Fig. 1.
Fig. 3 is the schematic diagram of a magnesium alloy ingot extrusion process when finishing.
8 is the magnesium alloy ingot that retains in the recipient among the figure, highly is H
1H
2Be recipient height, H
3Be the extrusion die height, L is the length that extrusion axis is pressed into recipient; H
1=H
2-H
3-L
Fig. 4 is the schematic diagram that adds ingot continuously of the present invention.
9 is the magnesium alloy ingot that adds once more among the figure, highly is H
46mm＜H
1＜H
2-H
3-H
4
The specific embodiment
As accompanying drawing 1-4, adopt diffusion-connection continuous extrusion method extrusion magnesium alloy silk, step is as follows:
1, adopt hot die steel to make recipient 1, extrusion die 3, extrusion axis 4, pad 6, base 7; Make adjustable heat-preservation cylinder 5, prepare graphite powder.
2, the magnesium alloy ingot blank is cast cylindrical magnesium alloy ingot after fusing, remove surface scale and impurity, the magnesium alloy ingot diameter is littler 1-2 millimeters than internal diameter of the container.
3, the upper end with extrusion axis 4 is fixed on the forcing press, extrusion die 3 is put into recipient 1 and is compressed, sprinkle graphite powder at recipient 1 inwall, then pad 6 is placed on the base 7, recipient 1 is placed on the pad 6 and centering, put heat-preservation cylinder 5, be preheated to 450-500 ℃ by 5 pairs of recipients 1 of heat-preservation cylinder, extrusion axis 4 carries out centering with recipient 1.
4, magnesium alloy ingot to be extruded is put into electric furnace and be heated to 500～550 ℃ and be incubated more than 30 minutes.
5, a magnesium alloy ingot 2 that heats and be incubated is put into recipient 1.
6, with the forcing press extruding, should steadily pressurize during extruding, extruding force is 3-25Mpa, makes the magnesium alloy ingot temperature maintenance at 500-550 ℃ by regulating heat-preservation cylinder, and under given temperature and pressure, the Mg alloy wire extruded velocity is 0.5-6 meters/minutes.
7, as shown in Figure 3, according to the high H of recipient
2, the high H of extrusion die
3, extrusion axis 4 is pressed into the length L of recipient 1, judges magnesium alloy ingot 8 height H that extrusion die 3 tops retain
1, work as H
1When being 6-25 millimeters, rise extrusion axis 4.
8, as shown in Figure 4, in recipient, add a magnesium alloy ingot 9 that heats and be incubated again, repeating step 6 and 7.
9, repeating step 8, realize the continuously extruded of Mg alloy wire.
Claims (2)
1, a kind of diffusion-connection continuous extrusion method of Mg alloy wire, adopt recipient, extrusion die, extrusion axis, pad, base, heat-preservation cylinder and forcing press, it is characterized in that, the extrusion axis upper end is fixed on the forcing press, and extrusion die is put into recipient and is compressed, and sprinkles graphite powder at the recipient inwall, then recipient is placed on the base together with pad, put heat-preservation cylinder, recipient is preheated to 450～500 ℃, extrusion axis and recipient are carried out centering by heat-preservation cylinder; Simultaneously magnesium alloy ingot to be extruded is heated to 500～550 ℃ and be incubated more than 30 minutes; A magnesium alloy ingot that heats and be incubated is put into recipient, and the controlled pressure machine begins extruding; When also retaining the magnesium alloy ingot of certain altitude between extrusion axis and the extrusion die, rise extrusion axis, in recipient, add a magnesium alloy ingot that heats and be incubated again, repeat extrusion process; Make the magnesium alloy ingot temperature maintenance at 500～550 ℃ by regulating heat-preservation cylinder;
Add the magnesium alloy ingot height (H that the preceding extrusion die of magnesium alloy ingot top retains again
1) scope is: greater than 6 millimeters, less than recipient height (H
2) deduct extrusion die height (H
3), deduct initiate magnesium alloy ingot height (H again
4).
2, the diffusion-connection continuous extrusion method of Mg alloy wire as claimed in claim 1 is characterized in that, adds the magnesium alloy ingot height (H that the extrusion die top retains before the magnesium alloy ingot again
1) being 6-25 millimeters, the extruding force of forcing press is 3-25Mpa during the extrusion magnesium alloy ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101578748A CN100493754C (en) | 2007-10-29 | 2007-10-29 | Magnesium alloy wire diffusion-connection continuous extrusion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101578748A CN100493754C (en) | 2007-10-29 | 2007-10-29 | Magnesium alloy wire diffusion-connection continuous extrusion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101168176A CN101168176A (en) | 2008-04-30 |
| CN100493754C true CN100493754C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101578748A Active CN100493754C (en) | 2007-10-29 | 2007-10-29 | Magnesium alloy wire diffusion-connection continuous extrusion method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272871A (en) * | 2013-06-03 | 2013-09-04 | 新乡东阳金属制品有限公司 | Lead rod extrusion device |
| CN111014329B (en) * | 2019-12-13 | 2021-09-28 | 广东华昌集团有限公司 | Gapless extrusion method for aluminum alloy seamless pipe |
| CN111283201B (en) * | 2020-03-31 | 2023-06-27 | 四川科匠轻金属材料科技有限公司 | Production method for semi-continuous ingot production of alloy powder |
| CN111644476A (en) * | 2020-05-22 | 2020-09-11 | 湖南乾龙新材料有限公司 | Production process method of large coil weight Al-Mg-Si series alloy extruded material |
-
2007
- 2007-10-29 CN CNB2007101578748A patent/CN100493754C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 镁合金焊丝挤压成形过程挤压力的研究. 董长富等.塑性工程学报，第11卷第3期. 2004 |
| 镁合金焊丝挤压成形过程挤压力的研究. 董长富等.塑性工程学报，第11卷第3期. 2004 * |
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| CN101168176A (en) | 2008-04-30 |
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