CN201231306Y - Vacuum melting die-casting device - Google Patents
Vacuum melting die-casting device Download PDFInfo
- Publication number
- CN201231306Y CN201231306Y CNU2008200954359U CN200820095435U CN201231306Y CN 201231306 Y CN201231306 Y CN 201231306Y CN U2008200954359 U CNU2008200954359 U CN U2008200954359U CN 200820095435 U CN200820095435 U CN 200820095435U CN 201231306 Y CN201231306 Y CN 201231306Y
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Abstract
The utility model discloses a vacuum smelting die-casting unit which comprises a vacuum-pumping system, a smelting system connected with the vacuum-pumping system, and a die-casting system, wherein the smelting system is connected to the die-casting system so as to transport alloy melt, the die-casting system is provided with an injection device and a die mold, one end of the injection device is communicated with the smelting system, and the other end is communicated with the die mold. The unit can cause the alloy melt to be completely filled in the die mold within a few milliseconds, thereby obtaining highest cooling speed and better quenching effect, and preventing die-casting products from having defects of loosened structure, and the like inside.
Description
Technical field
The utility model belongs to the metal casting technical field, more particularly, relates to a kind of vacuum melting die casting equipment.
Background technology
Amorphous alloy compare with crystalline material have high strength, high rigidity, high ductibility, high magnetic permeability, good corrosion resistance, characteristics such as wearability is strong, elastic limit is big, thereby amorphous alloy has more wide application prospect than crystalline material on scientific research and engineering.Because the preparation of amorphous alloy forms by liquid metal and alloy quench solidification, in order to suppress crystallization, must have very high cooling velocity in process of setting,
Existing evacuated die-casting process equipment mainly is made of vacuum plant, vacuum chamber, compressed air source unit, built-up jig, radio-frequency induction coil, copper mold and gas introduction tube.Wherein, built-up jig is installed in the vacuum chamber by flange, this built-up jig is provided with quartz nozzle and stopper rod, vacuum plant is connected with vacuum chamber, compressed air source unit is connected with built-up jig by gas introduction tube, radio-frequency induction coil is arranged on the bottom of built-up jig, and copper mold is connected with quartz nozzle on the built-up jig.During work, earlier foundry alloy is packed in the built-up jig, with stopper rod quartz nozzle is blocked, the starting vacuum plant is evacuated built-up jig and vacuum chamber; After reaching requirement, connect radio-frequency induction coil, foundry alloy is heated, make by compressed air source unit again after the fusing fully and produce malleation in the built-up jig, when the pressure differential in vacuum chamber and the built-up jig reaches certain numerical value, mention stopper rod, the foundry alloy after the fusing is pressed in the copper mold, can form the non-crystaline amorphous metal product of definite shape.
But thisly utilize pressure reduction to finish fully to fill type, the production method of solidifying because the active force of its pressure reduction is less, atmospheric pressure is generally 5-10Kg/Cm2, the non-crystaline amorphous metal product fill type and chilling is limited in one's ability, product feeding difficulty, quality is relatively poor relatively.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of vacuum melting die casting equipment that can fast liquid melts be charged in the casting mold mould.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of vacuum melting die casting equipment, comprise pumped vacuum systems, the smelting system and the die-casting system that are connected with described vacuum system, described smelting system is connected to die-casting system to carry the alloy liquation, it is characterized in that: described die-casting system is provided with injection device and compression mod, this injection device one end is connected with smelting system, and the other end is connected with compression mod.
Compare with existing evacuated die-casting process equipment, technical solutions of the utility model increase by a cover injection device, can make the alloy liquation within several milliseconds, charge into compression mod fully, can obtain higher cooldown rate and better quenching effect like this, prevent that defectives such as internal structure is loose from appearring in die-cast product.Simultaneously, this equipment all carries out the melting of product and die casting under vacuum state, avoided the pollution and the oxidation of alloy liquation effectively, plays the effect of refined metals, has effectively avoided heterogeneous forming core, more helps the amorphous that is shaped.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the utility model one preferred embodiment.
Fig. 2 is the generalized section of die-casting system part in the utility model one preferred embodiment
The specific embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please refer to Fig. 1, be a preferred embodiment of the utility model vacuum melting die casting equipment, the whole annexation that this illustrates pumped vacuum systems 1, smelting system 2 and the die-casting system 3 of this equipment comprises control system not shown in the figures in addition.Wherein, pumped vacuum systems 1 comprises the vavuum pump group, the vacuum tank 13 that is connected with the vavuum pump group, the vavuum pump group comprises one-level mechanical pump 11 and secondary lobe pump 12, wherein, the air inlet of secondary lobe pump 12 is connected with vacuum tank 13, and the air inlet of one-level mechanical pump 11 is connected with the gas outlet of secondary lobe pump 12.Certainly, as required, can also adopt the vavuum pump of other types to be cascaded to form the vavuum pump group.The smelting system 2 that is connected with vacuum tank 13 and die-casting system 3 and control system are finished the transmission of alloy liquation by pipeline 4 between smelting system 2 and the die-casting system 3.
The structure of above-mentioned preferred embodiment, can provide vacuum for smelting system 2 and die-casting system 3 simultaneously with a cover vavuum pump group, can realize vacuum melting and evacuated die-casting process simultaneously, its compact conformation, need not the vacuum (-tight) housing that uses volume bigger, it is less to vacuumize volume, and melt for closed state, is particularly suitable for the higher non-crystalline material of purity requirement is carried out vacuum melting and evacuated die-casting process 3 the transmittance process from smelting system 2 to die-casting system.
Between vacuum tank 12 and smelting system 2, can establish push-pull valve or control valve 5.Equally, between vacuum tank 12 and die-casting system 3, also can establish push-pull valve or control valve 5.The pipeline between vacuum tank 2 and smelting system 3 and the die-casting system 4 can be blocked and open to push-pull valve, and control valve 5 can be for the vacuum of regulating in smelting system 2 and the die-casting system 3.
As shown in Figure 2, be the generalized section of the die-casting system 3 of vacuum melting die casting equipment, it comprises compression mod 31 and the injection device of being located in the die casting machine 33 32.
Described smelting system 2 is after the melting of finishing foundry alloy, the alloy liquation is transferred to injection device 32, injection device 32 is with the die cavity of alloy liquation injection to compression mod 31, make the alloy liquation under high pressure conditions, to cast, thereby can improve the cooling velocity of foundry alloy significantly, better suppress unexpected crystallization.
The concrete structure of die-casting system 3 as shown in Figure 2, described injection device 32 comprises injection chamber 321, piston rod 322 and injection punch head 323, wherein, piston rod 322 movably is located in the injection chamber 321,323 of injection punch heads are fixed on an end of piston rod 322, on a side certain altitude of injection chamber 321, a charging aperture 324 is set, this charging aperture 324 is used to receive from the next melt of smelting system 2 transmission, the opposite side of injection chamber 321 is provided with a discharging opening 325 near the position of bottom, described discharging opening 325 is connected with a playpipe 327 by a pipeline 326, and described playpipe 327 is connected to compression mod 31 by a nozzle 328.
When mounted, should guarantee that the position of charging aperture 324 is higher than the position of discharging opening 325, and in the injection stroke that piston rod 322 drive injection punch heads 323 move down, charging aperture 324 should be in closed state, like this, can make the alloy liquation in injection chamber 321, go in the casting mold mould to cast by moving of piston rod 322 by discharging opening 325, pipeline 326, playpipe 327 and nozzle 328 high speed injections.
The course of work of the utility model vacuum melting die casting equipment is as follows: start mechanical pump 11 by control system earlier, lobe pump 12 starts when the pressure in the vacuum tank 13 reaches 1500 handkerchiefs, make pressure drop to 2 handkerchief in the vacuum tank 13, at this moment die casting machine matched moulds, in smelting system 2, throw in amorphous master alloy or other materials to be processed, open push-pull valve or control valve 5, smelting system 2 and die-casting system 3 are inserted vacuum system, when pressure to 4 handkerchief in working chamber and the die casting machine, vacuum melting begins, after reaching requirement, the formed alloy liquation of vacuum melting is imported into die-casting system 3, the injection device 32 of die-casting system 3 with the injection of alloy liquation in the compression mod 31 of die casting machine 33, this moment, die casting machine 33 was started working, after die casting is finished, push-pull valve or control valve 5 are closed, and working chamber and mould and vacuum system disconnect, and product is taken out in the die casting machine die sinking.Continue melting as need, throw in foundry alloy once more, and repeat above-mentioned steps to the working chamber.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1, a kind of vacuum melting die casting equipment, comprise pumped vacuum systems, the smelting system and the die-casting system that are connected with described vacuum system, described smelting system is connected to die-casting system to carry the alloy liquation, it is characterized in that: described die-casting system is provided with injection device and compression mod, this injection device one end is connected with smelting system, and the other end is connected with compression mod.
2, vacuum melting die casting equipment as claimed in claim 1, it is characterized in that, described injection device comprises injection chamber, piston rod and injection punch head, wherein, piston rod movably is located in the injection chamber, and injection punch head is fixed on piston rod one end, also is provided with charging aperture and discharging opening on the injection chamber, charging aperture is connected to smelting system, and discharging opening is connected with compression mod by the playpipe of band nozzle.
3, vacuum melting die casting equipment as claimed in claim 1 or 2, it is characterized in that, described pumped vacuum systems comprises the vavuum pump group, the vacuum tank that is connected with the vavuum pump group, the vavuum pump group comprises one-level mechanical pump and secondary lobe pump, wherein, the air inlet of secondary lobe pump is connected with vacuum tank, and the air inlet of one-level mechanical pump is connected with the gas outlet of secondary lobe pump.
4, vacuum melting die casting equipment as claimed in claim 3 is characterized in that, described pumped vacuum systems is connected with die-casting system with smelting system respectively by its vacuum tank.
5, vacuum melting die casting equipment as claimed in claim 4 is characterized in that, it further comprises a control system, and this control system is used to control the switching device between vacuum tank and smelting system and/or die-casting system.
6, vacuum melting die casting equipment as claimed in claim 1 is characterized in that, described switching device is push-pull valve or control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954359U CN201231306Y (en) | 2008-07-08 | 2008-07-08 | Vacuum melting die-casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954359U CN201231306Y (en) | 2008-07-08 | 2008-07-08 | Vacuum melting die-casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201231306Y true CN201231306Y (en) | 2009-05-06 |
Family
ID=40617681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200954359U Expired - Lifetime CN201231306Y (en) | 2008-07-08 | 2008-07-08 | Vacuum melting die-casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201231306Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658593A (en) * | 2013-12-06 | 2014-03-26 | 宁波旭升机械有限公司 | Vacuum secondary extrusion die and die casting method |
-
2008
- 2008-07-08 CN CNU2008200954359U patent/CN201231306Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658593A (en) * | 2013-12-06 | 2014-03-26 | 宁波旭升机械有限公司 | Vacuum secondary extrusion die and die casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai BYD Co., Ltd. Assignor: Biyadi Co., Ltd. Contract record no.: 2011440020315 Denomination of utility model: Vacuum melting die-casting equipment Granted publication date: 20090506 License type: Exclusive License Record date: 20110819 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |