CN103008377B - A kind of novel magnesium alloy plate extruding formation process - Google Patents
A kind of novel magnesium alloy plate extruding formation process Download PDFInfo
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- CN103008377B CN103008377B CN201210561279.1A CN201210561279A CN103008377B CN 103008377 B CN103008377 B CN 103008377B CN 201210561279 A CN201210561279 A CN 201210561279A CN 103008377 B CN103008377 B CN 103008377B
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- magnesium alloy
- alloy plate
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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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
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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
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/06—Making sheets
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- Engineering & Computer Science (AREA)
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- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of novel magnesium alloy plate extruding formation process, comprise the steps: 1) by the magnesium alloy blank heating and thermal insulation through Homogenization Treatments, heat recipient and extrusion die, described extrusion die is provided with C pattern mouth simultaneously; 2) magnesium alloy blank is added in recipient, extruder extrudes magnesium alloy blank, make magnesium alloy blank from the shaping depanning of C pattern mouth of extrusion die, obtain the magnesium alloy profiles in C type cross section; 3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains magnesium alloy plate.Extrusion die of the present invention is without the need to the complete width manufacture according to magnesium alloy plate, significantly can reduce the width of extrusion die, reduce floor space and equipment cost, the present invention has meaning great especially for the production of the larger magnesium alloy plate of wide cut, and production process of the present invention also simplifies more, improve industrial production efficiency, reduce production cost.
Description
Technical field
The present invention relates to a kind of extrusion forming technology, be specifically related to a kind of novel magnesium alloy plate extruding formation process.
Background technology
Magnesium alloy is structural metallic materials the lightest at present, it has electric conductivity, thermal conductivity, electromagnetic wave shielding, simultaneously specific strength and specific stiffness high, damping property is good, and machining and good dimension stability, easily reclaim, be conducive to the advantages such as environmental protection, be described as " green engineering materials in 21st century ", along with industrial light-weighted demands for development such as automobile, aviation, electronics and transports, the range of application of magnesium alloy is more and more wider.Magnesium alloy is divided into cast magnesium alloy and wrought magnesium alloy, and the cast magnesium alloy that application is wider at present, its as-cast structure coarse grains, mechanical property is lower.Conventional wrought magnesium alloy mainly contains the trades mark such as AZ31, AZ61, AZ80, ZK31, ZK61, HK31, HK21, wrought magnesium alloy is mainly by plasticity pressure processing such as extruding, rolling, forging or stretchings, modified product through production technology outputs such as extruding, forging and rollings has higher intensity, better percentage elongation and more diversified mechanical property, can meet the demand of more multiplicity part.Current China succeeds in developing and that formed small lot batch manufacture and application is the Mg-Al-Zn series magnesium alloy AZ31 adopting extrusion to produce, this magnesium alloy has good extrusion performance, produce the section bar of the pipe of plurality of specifications, rod, bar, strip section bar and section configuration more complicated by crimp, the most thin-walled of section bar is thick, and can to reach 0.6mm even thinner.Therefore, the inexorable trend that wrought magnesium alloy product is magnesium alloy processing development is developed.
At present, the extrusion process of magnesium alloy plate in industrial production, its extrusion die generally adopts the flat die orifice wide with magnesium alloy plate, utilizes plunger to apply pressure to the magnesium alloy blank in recipient, make its brute force by the flat die orifice of extrusion die, thus obtain magnesium alloy plate; But for the magnesium alloy plate that wide cut is larger, the extrusion die used in the method must correspondingly be widened, and therefore floor space and equipment cost are very high.Someone produces magnesium alloy plate by trial following methods: first adopt tube extrusion die to squeeze out magnesium alloy pipe, then longitudinally cut open by magnesium alloy pipe, then is flattened by the magnesium alloy pipe cut open, obtains magnesium alloy plate; But the method operation is still comparatively complicated.
Summary of the invention
In view of this, the invention provides a kind of novel magnesium alloy plate extruding formation process, floor space and the equipment cost of magnesium alloy plate production can be reduced, and production process simplifies, and improves industrial production efficiency, reduces production cost.
Novel magnesium alloy plate extruding formation process of the present invention, comprises the steps:
1) by the magnesium alloy blank heating and thermal insulation through Homogenization Treatments, heat recipient and extrusion die, described extrusion die is provided with C pattern mouth simultaneously;
2) magnesium alloy blank is added in recipient, extruder extrudes magnesium alloy blank, make magnesium alloy blank from the shaping depanning of C pattern mouth of extrusion die, obtain the magnesium alloy profiles in C type cross section;
3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains magnesium alloy plate.
Further, in described step 1), magnesium alloy blank is heated to 350 ~ 450 DEG C, and insulation 1 ~ 3h, recipient and extrusion die are heated to 350 ~ 450 DEG C.
Further, described step 2) in, extrusion speed is 0.2 ~ 5m/min, and extrusion ratio is 2 ~ 15.
Further, in described step 3), the thickness of magnesium alloy plate is 0.8 ~ 5mm, and the width after sheet material flattens is 100 ~ 1000mm.
Further, the distance length between two ends of described C pattern mouth is d; When the width of magnesium alloy plate is 100 ~ 150mm, d is 5 ~ 8mm; When the width of magnesium alloy plate is 150 ~ 300mm, d is 8 ~ 10mm; When the width of magnesium alloy plate is 300 ~ 400mm, d is 10 ~ 12mm; When the width of magnesium alloy plate is 400 ~ 1000mm, d is 12 ~ 15mm.
Further, described magnesium alloy blank is AZ31 magnesium alloy, LA141 magnesium alloy or ZM21 magnesium alloy.
Beneficial effect of the present invention is: the present invention first adopts the extrusion die with C pattern mouth to squeeze out the magnesium alloy profiles in C type cross section, then is flattened by the magnesium alloy profiles in this C type cross section, namely obtains magnesium alloy plate; Therefore extrusion die of the present invention is without the need to the complete width manufacture according to magnesium alloy plate, significantly can reduce the width of extrusion die, reduce floor space and equipment cost, the present invention has meaning great especially for the production of the larger magnesium alloy plate of wide cut, and production process of the present invention also simplifies more, improve industrial production efficiency, reduce production cost.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the process schematic of the novel magnesium alloy plate extruding formation process of the present invention;
Fig. 2 is the C pattern mouth structure schematic diagram of extrusion die.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.
Novel magnesium alloy plate extruding formation process of the present invention, comprises the steps:
1) by the magnesium alloy blank heating and thermal insulation through Homogenization Treatments, heat recipient and extrusion die, described extrusion die 3 is provided with C pattern mouth 4(as shown in Figure 2 simultaneously);
2) magnesium alloy blank 1 is added in recipient 2, extruder extrudes magnesium alloy blank 1, make magnesium alloy blank 1 from the shaping depanning of C pattern mouth 4 of extrusion die 3, obtain the magnesium alloy profiles (as shown in Figure 1, in figure 5 be pressure ram) in C type cross section;
3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains magnesium alloy plate.
In the present invention, the technological parameter such as extrusion temperature, extrusion speed, extrusion ratio of magnesium alloy blank, the heating-up temperature etc. of recipient and extrusion die, all can adopt the typical extrusion process parameters of wrought magnesium alloy; Preferred technological parameter is: in described step 1), and magnesium alloy blank is heated to 350 ~ 450 DEG C, insulation 1 ~ 3h, and recipient and extrusion die are heated to 350 ~ 450 DEG C; Described step 2) in, extrusion speed is 0.2 ~ 5m/min, and extrusion ratio is 2 ~ 15.
In the present invention, when the magnesium alloy profiles in C type cross section flattens, adopt conventional flattening device and the flattening process parameter of magnesium alloy routine.
In the present invention, the distance length between two ends of described C pattern mouth is d; When the width of magnesium alloy plate is 100 ~ 150mm, d is 5 ~ 8mm; When the width of magnesium alloy plate is 150 ~ 300mm, d is 8 ~ 10mm; When the width of magnesium alloy plate is 300 ~ 400mm, d is 10 ~ 12mm; When the width of magnesium alloy plate is 400 ~ 1000mm, d is 12 ~ 15mm.
In the present invention, described magnesium alloy blank preferably adopts the high plastic magnesium alloys such as AZ31 magnesium alloy, LA141 magnesium alloy or ZM21 magnesium alloy.
embodiment 1
The novel magnesium alloy plate extruding formation process of the present embodiment, comprises the steps:
1) the AZ31 magnesium alloy blank through Homogenization Treatments is heated to 400 DEG C, insulation 2h, heat recipient and extrusion die to 380 DEG C, the distance length between two ends of the C pattern mouth of described extrusion die is d, d=9mm simultaneously;
2) add in recipient by magnesium alloy blank, extruder extrudes magnesium alloy blank, extrusion speed is 1m/min, and extrusion ratio is 10, makes magnesium alloy blank from the shaping depanning of C pattern mouth of extrusion die, obtains the magnesium alloy profiles in C type cross section;
3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains that thickness is 2mm, width is the magnesium alloy plate of 250mm.
embodiment 2
The novel magnesium alloy plate extruding formation process of the present embodiment, comprises the steps:
1) the ZM21 magnesium alloy blank through Homogenization Treatments is heated to 450 DEG C, insulation 1h, heat recipient and extrusion die to 420 DEG C, the distance length between two ends of the C pattern mouth of described extrusion die is d, d=14mm simultaneously;
2) add in recipient by magnesium alloy blank, extruder extrudes magnesium alloy blank, extrusion speed is 4m/min, and extrusion ratio is 5, makes magnesium alloy blank from the shaping depanning of C pattern mouth of extrusion die, obtains the magnesium alloy profiles in C type cross section;
3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains that thickness is 5mm, width is the magnesium alloy plate of 800mm.
Extrusion die of the present invention is without the need to the complete width manufacture according to magnesium alloy plate, therefore, it is possible to significantly reduce the width of extrusion die, reduce floor space and equipment cost, the present invention has meaning great especially for the production of the larger magnesium alloy plate of wide cut, and such as thickness is 0.8 ~ 5mm, width is the magnesium alloy plate of 100 ~ 1000mm.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by referring to the preferred embodiments of the present invention, invention has been described, but those of ordinary skill in the art is to be understood that, various change can be made to it in the form and details, and not depart from the spirit and scope of the present invention that appended claims limits.
Claims (1)
1. a novel magnesium alloy plate extruding formation process, is characterized in that: comprise the steps:
1) by the magnesium alloy blank heating and thermal insulation through Homogenization Treatments, heat recipient and extrusion die, described extrusion die is provided with C pattern mouth simultaneously;
2) magnesium alloy blank is added in recipient, extruder extrudes magnesium alloy blank, make magnesium alloy blank from the shaping depanning of C pattern mouth of extrusion die, obtain the magnesium alloy profiles in C type cross section;
3) by step 2) magnesium alloy profiles in C type cross section that obtains flattens, and obtains magnesium alloy plate;
Described step 2) in, extrusion speed is 0.2 ~ 5m/min, and extrusion ratio is 2 ~ 15;
In described step 3), the thickness of magnesium alloy plate is 0.8 ~ 5mm, and the width after sheet material flattens is 100 ~ 1000mm;
Distance length between two ends of described C pattern mouth is d; When the width of magnesium alloy plate is 100 ~ 150mm, d is 5 ~ 8mm; When the width of magnesium alloy plate is 150 ~ 300mm, d is 8 ~ 10mm; When the width of magnesium alloy plate is 300 ~ 400mm, d is 10 ~ 12mm; When the width of magnesium alloy plate is 400 ~ 1000mm, d is 12 ~ 15mm;
Described magnesium alloy blank is AZ31 magnesium alloy, LA141 magnesium alloy or ZM21 magnesium alloy;
In described step 1), magnesium alloy blank is heated to 350 ~ 450 DEG C, and insulation 1 ~ 3h, recipient and extrusion die are heated to 350 ~ 450 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210561279.1A CN103008377B (en) | 2012-12-21 | 2012-12-21 | A kind of novel magnesium alloy plate extruding formation process |
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| CN201210561279.1A CN103008377B (en) | 2012-12-21 | 2012-12-21 | A kind of novel magnesium alloy plate extruding formation process |
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| CN103008377A CN103008377A (en) | 2013-04-03 |
| CN103008377B true CN103008377B (en) | 2015-10-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9849505B2 (en) | 2013-05-18 | 2017-12-26 | Ulrich Bruhnke | Method and apparatus for producing metal sheets |
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| CN103878195B (en) * | 2014-03-31 | 2016-02-10 | 重庆市科学技术研究院 | Magnesium alloy plate extruding formation process |
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| CN108772430B (en) * | 2018-06-05 | 2019-08-02 | 重庆大学 | A kind of magnesium alloy sheet made-up belt pressurizing unit and extrusion process |
| CN108787771B (en) * | 2018-06-05 | 2019-07-26 | 重庆大学 | A kind of acquisition room temperature high plastic magnesium alloy thin sheet strip plate pressurizing unit and extrusion process |
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| CN111167870B (en) * | 2020-01-16 | 2021-11-30 | 太原市康镁科技发展有限公司 | Extrusion forming process of magnesium alloy plate |
| CN112275826B (en) * | 2020-10-10 | 2023-11-21 | 山东华盛荣镁业科技有限公司 | Preparation method and device of magnesium alloy sheet |
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