CN101875097B - Semisolid state forming device and forming process - Google Patents
Semisolid state forming device and forming process Download PDFInfo
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- CN101875097B CN101875097B CN2010101336647A CN201010133664A CN101875097B CN 101875097 B CN101875097 B CN 101875097B CN 2010101336647 A CN2010101336647 A CN 2010101336647A CN 201010133664 A CN201010133664 A CN 201010133664A CN 101875097 B CN101875097 B CN 101875097B
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- induction heating
- heating apparatus
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Abstract
The invention relates to a semisolid state forming device and a forming process. The forming device comprises a die casting machine and an induction heating apparatus, wherein the induction heating apparatus comprises a plurality of heating chambers, and in an injection state, one of the heating chambers is just matched and connected with a pressure chamber of the die casting machine at the injection position and is coaxial with an injection piston. Two sides of each heating chamber are provided with sealing and insulating baffles, and the immovable baffles are provided with injection ports and feeding holes. The power of each heating chamber can be independently adjusted. The invention has the advantages of simplifying the device, having simple process, saving energy sources, reducing the heat quantity loss, being not easy to oxidize, improving the production efficiency and ensuring the quality and the stability of the product. A video, thixotropy and temperature detecting device can comprehensively, intuitively, precisely and effectively control the forming capacity on line.
Description
Technical field
The present invention relates to a kind of semisolid state forming device and technology, particularly magnesium alloy and aluminium alloy semi-solid building mortion and technology.
Background technology
Magnesium is as the lightest engineering metal material (density 1.8g/cm
3, be 2/3 of aluminium, steel 1/4); Have that light specific gravity, specific strength and specific stiffness are high, damping and amortization and machinability is good, thermal conductivity is good, the electromagnetic shielding ability strong and the character that is easy to a series of uniquenesses such as reclaiming; Can satisfy Aeronautics and Astronautics, Hyundai Motor industry to loss of weight, requirements of saving energy, and alternative engineering plastics make the housing and the structural member of electronic equipment, to satisfy light, thin, the miniaturization of product; Requirement such as high integration and environmental protection improves the using energy source benefit.
And magnesium alloy is prone to produce defectives such as pore, shrinkage porosite and hot tearing when conventional die casting.The semisolid casting forming is a kind of new short flow process forming technique that development in recent years is got up.Before metal paste fills type, form the solid phase about half, had the oxidation that can alleviate alloy and wrap up in gas, reduced solidification shrinkage and make advantages such as even tissue, densification, and be easy to the part of forming shape complicacy and precision size.The semisolid cast temperature is lower than conventional cast temperature, and surperficial no liquid reduces and pollutes, and energy savings reduces cost.
But existing magnesium alloy, aluminium alloy semi-solid extrusion process are all complicated, and production cost is higher, in actual production process, still has limitation; As: the semi-solid blank heating separates with press casting procedure, promptly all needs a transporter, presses the notes chamber so that the semi-solid blank that heats is delivered to die casting machine smoothly; And transporter is generally all complicated; Be difficult for realizing, and semi-solid blank thermal loss in the process of transhipment is bigger, technological parameter is wayward.On the one hand, have certain liquid phase in the semi-solid blank, blank is difficult to keep original shape in the transport process, causes technology stability and structural homogenity to reduce, and is prone to defective such as gas enclosure.On the other hand, semi-solid blank contains a certain amount of solid, accurately is transported to the pressure notes chamber of die casting machine for guaranteeing semi-solid blank, presses the cast gate when annotating the chamber cast gate than conventional die casting big.Therefore, the injection stroke of die casting machine need extend to adapt to the cast gate of increasing; Press notes chamber diameter also will strengthen the semi solid slurry that increases to adapt to.Therefore, for same injection weight, it is big that the shot piston diameter is wanted usually, and the shot piston diameter of increase has reduced the pressure to alloy blank, therefore needs to increase the ability of injection system.Die casting equipment of a high price is revised, and adds the challenge and the high alloy restriction of solid content of intrinsic fluid mobility, makes these semisolid technologies can not become the desirable production technology of most of die casting manufacturer.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned semisolid extrusion process, a kind of semisolid state forming device and technology are provided, make heating clamber directly press the notes chamber to be connected with die casting machine; Realize that semi-solid blank heats and die casting is carried out synchronously; Transporter in the middle of saving is simplified technology, energy savings; Reduce cost, improve the quality of products and stability.
Technical solution of the present invention is achieved in that
A kind of semisolid state forming device comprises die casting machine and induction heating apparatus, and said induction heating apparatus comprises a plurality of heating clambers, it is characterized in that:
Described single heating clamber internal diameter and die casting machine press indoor footpath and shot piston external diameter to mate one by one, and press chamber, each heating clamber and shot piston to put at described die casting machine to be respectively equipped with positioner; Under the injection state, one of heating clamber just is connected in its injection position with die casting machine pressure chamber, and coaxial with shot piston.
Described induction heating apparatus both sides are provided with sealing insulation baffle plate, and the relative pedestal of said baffle plate is fixed, and corresponding injection position and heating clamber are offered injection mouth and charging aperture respectively on it, and said charging aperture double as removes cinder notch.
Described a plurality of heating clamber power is independent adjustable.
Described heating clamber top connects video, thixotropy and temperature-detecting device, so as comprehensively, intuitively, accurately, On-line Control forming ability effectively.
Said induction heating apparatus can be translation shuttle type induction heating apparatus, and a plurality of heating clambers are arranged in a row side by side, can move back and forth, and the period of motion and die casting machine productive temp are synchronous.
Said induction heating apparatus also can be rolling shuttle type induction heating apparatus, and a plurality of heating clambers are lined up a curved surface, and heating clamber moves back and forth along curved surface, and the period of motion and die casting machine productive temp are synchronous.
Utilize above-mentioned semisolid state forming device to carry out the technology of semi-solid-state shaping, its step is following:
A) start induction heating apparatus, normal temperature or preheating alloy blank are put into the heating clamber of induction heating apparatus by charging aperture, it is mobile automatically that said induction heating apparatus press beat, then in each heating clamber, puts into alloy blank successively respectively by charging aperture;
B) alloy blank in each heating clamber is warming up to semi solid zone successively;
C) heating clamber that arrives semi solid zone moves to the injection position of die casting machine in order and carries out casting forming;
D) each injection is accomplished, and the heating clamber of said injection position moves to the charging aperture place automatically, continues to put into alloy blank again.
Described technical process is controlled through video, thixotropy and temperature-detecting device in real time.
Described semi-solid-state shaping technology, alloy blank are heated to semisolid can carry out die casting, saves the insulation course of conveying, simplifies technology, avoids oxidation, reduces thermal loss, improves quality of die casting.
Compared with prior art, the present invention has following significant advantage:
1, said semisolid state forming device adopts multistage rapid heating technology, and casting temperature is evenly distributed, and can shorten the production cycle, reduces heat loss and blank surface oxidation, enhances productivity.Multistage heating-up temperature is lower more than 100 ℃ than conventional cast temperature, surperficial no liquid, no gas (being harmful to) protection, whole process of production is pollution-free (dustless, smokeless, nontoxic, tasteless), energy-conserving and environment-protective.
2, said shuttle type induction heating apparatus, parallel-moving type no matter also or roller, all saves the insulation course of conveying, and simplification device is saved the energy, reduces thermal loss, enhances productivity, and guarantees product quality and stability.
3, video, thixotropy and temperature-detecting device can be comprehensively, intuitively, accurately, On-line Control forming ability effectively.
In a word, it is simple that the present invention has technology, and parameter is easy to control, and the characteristics that yield rate is high can be widely used in the commercial production.
Description of drawings
Fig. 1 is the induction heating apparatus vertical view;
Fig. 2 is the induction heating apparatus profile;
Fig. 3 is the induction heating apparatus front apron;
Fig. 4 is the induction heating apparatus backboard;
Fig. 5 is the induction heating apparatus heating clamber;
Fig. 6 is the induction heating apparatus and the die casting machine location drawing.Among the figure,
1. induction heating apparatus 11. heating clambers 2. die casting machines pressure chambers 21. 22. shot piston, 31. charging apertures, 32. injection mouths, 33. air inlets, 34. videos monitoring mouthful 35. temperature detection mouths, 36. thixotropy detect mouth
The specific embodiment:
Embodiment 1
Said semisolid state forming device comprises die casting machine and induction heating apparatus, and said induction heating apparatus comprises a plurality of heating clambers; Described single heating clamber internal diameter and die casting machine press indoor footpath and shot piston external diameter to mate one by one, and press chamber, each heating clamber and shot piston to put at described die casting machine to be respectively equipped with positioner; Under the injection state, one of heating clamber just is connected in its injection position with die casting machine pressure chamber, and coaxial with shot piston, as shown in Figure 6.
Described induction heating apparatus both sides are provided with sealing insulation baffle plate; Comprise front apron and backboard, respectively like Fig. 3 and shown in Figure 4, the relative pedestal of said baffle plate is fixed; Corresponding injection position and heating clamber are offered injection mouth and charging aperture respectively; Said charging aperture double as removes cinder notch, in addition, also is provided with the video monitor mouth on the front apron; Offer air inlet on the backboard.
Described a plurality of heating clamber, as shown in Figure 2, its power is independent adjustable.
Described heating clamber top connects video, thixotropy and temperature-detecting device, and is as shown in Figure 5, so as comprehensively, intuitively, accurately, On-line Control forming ability effectively.
Said induction heating apparatus is translation shuttle type induction heating apparatus, and is as shown in Figure 1, and a plurality of heating clambers are arranged in a row side by side, can move back and forth, and the period of motion and die casting machine productive temp are synchronous.
At induction heating apparatus heating clamber initial position, as shown in Figure 2, heating clamber a overlaps with charging aperture shown in Figure 3.
Technological parameter is following, adopts fixed heating frequently:
Each heating clamber power remains constant being: 21kw; DC current: 65A; DC voltage: 250V; Voltage of intermediate frequency: 360V; IF-FRE: 2650HZ; Alloy bar initial temperature: 450 ℃.
Concrete processing step is following:
AZ91D magnesium alloy bar is put into induction heating chamber a by charging aperture shown in Figure 3; By productive temp (48s), the heating clamber station that moves to left, this moment, heating clamber b shown in Figure 2 overlapped with charging aperture shown in Figure 3, still by charging aperture adding AZ91D magnesium alloy bar to heating clamber b; By productive temp (48s), the heating clamber station that moves to left again, this moment, heating clamber c shown in Figure 2 overlapped with charging aperture shown in Figure 3, by charging aperture adding AZ91D magnesium alloy bar to heating clamber c; The rest may be inferred, by productive temp (48s), AZ91D magnesium alloy bar is added among heating clamber d, the e successively; At this moment, heating clamber moves to low order end automatically, makes heating clamber a and salty the closing of injection (counting a station) shown in Figure 3, carries out injection and is shaped; Heating clamber is moved to the left a station again, gets back to initial position.
Embodiment 2
Used semisolid state forming device is with embodiment 1, and induction heating apparatus heating clamber initial position: heating clamber a shown in Figure 2 overlaps with charging aperture shown in Figure 3.
Technological parameter is following, and is different with embodiment 1, adopts the frequency conversion heating:
With heating clamber a shown in Figure 2 is example: initial power: 30kw, heating clamber move a station power and reduce 5kw automatically, and this heating clamber power is got back to 30kw automatically after the injection, alloy bar initial temperature: 450 ℃.
Concrete processing step is following:
AZ91D magnesium alloy bar is put into induction heating chamber a by charging aperture shown in Figure 3; By productive temp (52s), the heating clamber station that moves to left, this moment, heating clamber b shown in Figure 2 overlapped with charging aperture shown in Figure 3, by charging aperture AZ91D magnesium alloy bar was added among the heating clamber b; By productive temp (52s), the heating clamber station that moves to left again, this moment, heating clamber c shown in Figure 2 overlapped with charging aperture shown in Figure 3, by charging aperture AZ91D magnesium alloy bar was added among the heating clamber c; The rest may be inferred, by productive temp (52s), AZ91D magnesium alloy bar added successively to heating clamber d, e; At this moment, heating clamber moves to low order end automatically, makes heating clamber a and salty the closing of injection (counting a station) shown in Figure 3, casting forming; Heating clamber is moved to the left a station again, gets back to initial position.
The above is merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, such as, be used on the pipe fittings such as valve on the pipeline and non-pipeline on also belong to the row of protection.Any technical staff who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a semisolid state forming device comprises die casting machine and induction heating apparatus, and said induction heating apparatus comprises a plurality of heating clambers, it is characterized in that:
Described single heating clamber internal diameter and die casting machine press indoor footpath and shot piston external diameter to mate one by one, and press chamber, each heating clamber and shot piston to put at die casting machine to be respectively equipped with positioner; Under the injection state, one of heating clamber just is connected in its injection position with die casting machine pressure chamber, and coaxial with shot piston;
Said induction heating apparatus is a translation shuttle type induction heating apparatus, and a plurality of heating clambers are arranged in a row side by side, can move back and forth, and the period of motion and die casting machine productive temp are synchronous;
Perhaps, said induction heating apparatus is a rolling shuttle type induction heating apparatus, and a plurality of heating clambers are lined up a curved surface, and heating clamber moves back and forth along curved surface, and the period of motion and die casting machine productive temp are synchronous.
2. semisolid state forming device according to claim 1; It is characterized in that: described induction heating apparatus both sides are provided with sealing insulation baffle plate; The relative pedestal of said baffle plate is fixed; Corresponding injection position and heating clamber are offered injection mouth and charging aperture respectively on it, and said charging aperture double as removes cinder notch.
3. semisolid state forming device according to claim 2 is characterized in that: described a plurality of heating clamber power are independent adjustable.
4. semisolid state forming device according to claim 3 is characterized in that: described heating clamber top connects video, thixotropy and temperature-detecting device.
5. according to the arbitrary described semisolid state forming device of claim 1～4; It is characterized in that: said induction heating apparatus is a translation shuttle type induction heating apparatus; A plurality of heating clambers are arranged in a row side by side, can move back and forth, and the period of motion and die casting machine productive temp are synchronous.
6. according to the arbitrary described semisolid state forming device of claim 1～4; It is characterized in that: said induction heating apparatus is a rolling shuttle type induction heating apparatus; A plurality of heating clambers are lined up a curved surface, and heating clamber moves back and forth along curved surface, and the period of motion and die casting machine productive temp are synchronous.
7. semi-solid-state shaping technology that employing is installed according to claim 1, its step is following:
A) start induction heating apparatus, normal temperature or preheating alloy blank are put into the heating clamber of induction heating apparatus by charging aperture, it is mobile automatically that said induction heating apparatus press beat, then in each heating clamber, puts into alloy blank successively respectively by charging aperture;
B) alloy blank in each heating clamber is warming up to semi solid zone successively;
C) heating clamber that arrives semi solid zone moves to the injection position of die casting machine in order and carries out casting forming;
D) each injection is accomplished, and the heating clamber of said injection position moves to the charging aperture place automatically, continues to put into alloy blank again.
8. semi-solid-state shaping technology according to claim 7 is characterized in that: described technical process is controlled through video, thixotropy and temperature-detecting device in real time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101336647A CN101875097B (en) | 2010-03-22 | 2010-03-22 | Semisolid state forming device and forming process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101336647A CN101875097B (en) | 2010-03-22 | 2010-03-22 | Semisolid state forming device and forming process |
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| CN101875097A CN101875097A (en) | 2010-11-03 |
| CN101875097B true CN101875097B (en) | 2012-06-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102172771A (en) * | 2011-03-25 | 2011-09-07 | 天津福来明思铝业有限公司 | Remelting heating process in semisolid thixotropic processing of aluminium alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416982A (en) * | 2001-10-31 | 2003-05-14 | 北京有色金属研究总院 | Semi-solid metal slurrg preparing and forming equipment and method |
| CN201693150U (en) * | 2010-03-22 | 2011-01-05 | 大连交通大学 | Shuttling magnesium alloy semisolid former |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3972849B2 (en) * | 2003-03-27 | 2007-09-05 | トヨタ自動車株式会社 | Semi-molten metal injection apparatus and method |
| JP4780296B2 (en) * | 2005-10-03 | 2011-09-28 | トヨタ自動車株式会社 | Semi-melt molding equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416982A (en) * | 2001-10-31 | 2003-05-14 | 北京有色金属研究总院 | Semi-solid metal slurrg preparing and forming equipment and method |
| CN201693150U (en) * | 2010-03-22 | 2011-01-05 | 大连交通大学 | Shuttling magnesium alloy semisolid former |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-291043A 2004.10.21 |
| JP特开2007-125612A 2007.05.24 |
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Granted publication date: 20120613 Termination date: 20140322 |