CN108515158A - Non-crystaline amorphous metal melting die cast device and method - Google Patents
Non-crystaline amorphous metal melting die cast device and method Download PDFInfo
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- CN108515158A CN108515158A CN201810310781.2A CN201810310781A CN108515158A CN 108515158 A CN108515158 A CN 108515158A CN 201810310781 A CN201810310781 A CN 201810310781A CN 108515158 A CN108515158 A CN 108515158A
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- die casting
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- melting
- negative pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
- B22D17/145—Venting means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
Abstract
The invention discloses a kind of non-crystaline amorphous metal melting die cast devices, including more die casting machines, vacuum negative pressure device and inert gas feedway, every die casting machine is and vacuum negative pressure device, inert gas feedway is connected by vacuum pipe, it is mounted on vacuum isolating valve on vacuum pipe between vacuum negative pressure device and die casting machine and between inert gas feedway and die casting machine, vacuum negative pressure device vacuumizes die casting machine, inert gas feedway supplies inert gas to die casting machine, until forming non-crystaline amorphous metal melting environment in die casting machine, die casting machine is by the raw metal melting die cast of non-crystaline amorphous metal.The invention also discloses a kind of non-crystaline amorphous metal melting method of squeeze forming.The present invention can quickly obtain the melting environment compared with low oxygen content, so as to shorten the molding cycle of part, can effectively improve the stability and production efficiency of amorphous part.
Description
Technical field
The present invention relates to novel die casting technical fields, and in particular, to a kind of non-crystaline amorphous metal melting die cast device and
Method.
Background technology
Non-crystaline amorphous metal is to have little time ordered crystalline by atom when super be quenched and solidified, obtain a kind of longrange disorder, not crystalline substance
The novel metal structural material of grain, crystal boundary, also known as " glassy metal " or " liquid metal ".Non-crystaline amorphous metal have high intensity,
A series of excellent properties such as high rigidity, high surface finish, highly corrosion resistant, it is considered to be 21 century is most revolutionary new
One of material has wide practical use in fields such as military project space flight, consumer electronics, sports apparatus, biologic medical tools.It is consuming
Electronic field substitutes existing stainless steel, aluminium alloy currently, using non-crystaline amorphous metal as the potential application material of next-generation mobile phone
Deng, realize the updating and upgrading of a product, be study on the industrialization hot spot instantly.The preparation method of non-crystaline amorphous metal includes inhaling casting, water quenching etc.
Technique, however such technique is difficult to realize the preparation of parts with complex structures, cannot be satisfied the requirement of industrialized production.Die-casting process
It is chiefly used in the near-net-shape of parts with complex structures, therefore, is attempted for the system of the non-crystaline amorphous metal part of complicated shape in recent years
It is standby, to realize its commercial application.It is well known that requirement of the preparation of non-crystaline amorphous metal to oxygen content is extremely stringent, in melting and
During solidification, the introducing of micro oxygen element is likely to cause to form oxide inclusions etc. in melt, makes part can not
Non crystalline structure is obtained, material property is drastically deteriorated.And therefore traditional die casting equipment, the melting die casting mostly under atmospheric environment are opened
It is the premise of non-crystaline amorphous metal commercial application to send out melting die casting equipment novel evacuated.
Currently, evacuated die-casting process molding equipment is overall, there are two types of forms：The first form is such as patent 201210250803.3
A kind of disclosed vacuum die casting machine, this kind of vacuum die casting machine are only when knockout rod is by melt energy injection to a certain position of barrel
When, just start triggering to being vacuumized in mold cavity, realizes Vacuum Filling solidification.This kind of die casting equipment cannot achieve melting, to
Soup, injection process whole process vacuum, therefore, it is impossible to the production for being easy to active, oxidation non-crystaline amorphous metal part.Another
Form vacuum die-cast equipment is such as Patent No.：US6805758B2,201110421420.3,201510118673.1,
201320785547.8 and vacuum die casting machine disclosed in 201320783965.3.Such vacuum die casting machine is by by melting
Part and injection part are sealed in a vacuum warehouse, to realize that the overall process vacuum of melting, injection, solidification, such die casting are set
The it is proposed of standby scheme provides possibility for the commercial application of non-crystaline amorphous metal, is the major programme of current production non-crystaline amorphous metal.So
And there are still following deficiencies for such vacuum die casting machine：
(1) melting warehouse product is big.Although the whole vacuum of melting die casting may be implemented in such vacuum die casting machine.But it should
Knockout rod etc. is included to cause the volume in melting storehouse larger in vacuum melting storehouse by kind die casting machine, and the pumpdown time is long, and efficiency is low
Under.(2) it is long to obtain low oxygen content melting ambient time.Fig. 1 is that existing melting die cast device obtains low oxygen content melting ring
Pressure-the time diagram in border will obtain low as shown in Figure 1 when vacuum degree reaches certain value (general 100~1000Pa)
When oxygen content melting environment, need to further it vacuumize, until reaching the 10Pa vacuum below needed for amorphous alloy die-casting production,
The foundation of its high vacuum can greatly prolong the time vacuumized.(3) there is waste in vacuum pump.In above-mentioned vacuum die casting machine, often
One die casting machine is equipped with either more mechanical pumps+(one or more) molecular pump (or diffusion pump).It was producing
Cheng Zhong, vacuum pump are constantly in normally open.However, during die casting equipment injection, solidification, sampling, mold cleaning, melt
Refining storehouse is without vacuumizing, and vacuum pump is still in operating condition at this time, and there are serious power dissipations.
With the progress of non-crystaline amorphous metal industrialization and the expansion of the market demand, develop higher efficiency, Fast Activities it is low
Oxygen content melting environment method of smelting and unit cost it is lower, more efficient die-cast formation equipment it is extensive to non-crystaline amorphous metal
Industrialization is of great significance.
Invention content
In view of the foregoing, it is an object in view of the deficiencies of the prior art, provide a kind of non-crystaline amorphous metal melting pressure
Type casting moulding apparatus and method, with realize high efficiency vacuumize, the smelting amorphous alloy under low oxygen content.
To achieve the goals above, the present invention uses following technical scheme：
It is an aspect of the invention to provide a kind of non-crystaline amorphous metal melting die cast device, including it is more die casting machines, true
Idling pressure device and inert gas feedway, every die casting machine are supplied with the vacuum negative pressure device, the inert gas
It is connected by vacuum pipe to device, between the vacuum negative pressure device and the die casting machine and inert gas supply fills
It sets and is mounted on vacuum isolating valve on the vacuum pipe between the die casting machine, the vacuum negative pressure device is to the die casting machine
It vacuumizes, until the vacuum degree equilibrium of the vacuum degree and the vacuum negative pressure device in the die casting machine, the inert gas supplies
Inert gas is supplied to the die casting machine to device, the die casting machine is vacuumized again by the vacuum negative pressure device, directly
To non-crystaline amorphous metal melting environment is formed in the die casting machine, the raw metal melting of non-crystaline amorphous metal is cast by the die casting machine
Type.
Preferably, the die casting machine includes：
Die casting, the die casting include clamping mechanism, dynamic model and cover half, and the clamping mechanism is described for controlling
The unlatching of dynamic model and the cover half and closure, when the dynamic model is closed with the cover half, between the dynamic model and the cover half
Form mold cavity；
Melting storehouse, melting cup is provided in the melting storehouse, and the melting cup is used for smelting metal raw material；
Injection mechanism, the injection mechanism include dnockout cylinder, knockout rod and tup, the dnockout cylinder and the melting storehouse and
The mold cavity connects to form enclosure space, and one end of the knockout rod connects driving mechanism, the other end of the knockout rod
The tup is connected, the tup is inserted into the dnockout cylinder；
Driving mechanism, the driving mechanism drive the knockout rod that the tup is driven to be moved along the dnockout cylinder, institute
It states tup and pushes from the melting storehouse and flow into the melt in the dnockout cylinder into the mold cavity；And
Control system, the control system are electrically connected with the clamping mechanism and the driving mechanism, and the control is
System vacuumizes request signal after the dynamic model and the cover half are closed to vacuum negative pressure device transmission.
Preferably, the die casting machine further includes die casting board, and the die casting and the driving mechanism are each attached to institute
It states on die casting board.
Preferably, the vacuum negative pressure device is connect with the melting storehouse by vacuum pipe, to the dnockout cylinder, described
The enclosure space that melting storehouse and the mold cavity are formed vacuumizes；The inert gas feedway connects with the mold cavity
It connects, inert gas is supplied to the enclosure space.
Preferably, the vacuum negative pressure device includes negative pressure of vacuum tank, vacuum pump and power control cabinet, the negative pressure of vacuum tank
It is connect by vacuum pipe with the die casting machine and the vacuum pump, and between the negative pressure of vacuum tank and the vacuum pump
Vacuum pipe on vacuum isolating valve is installed.
Preferably, the inert gas is one or more in helium, neon, argon gas, Krypton, xenon and radon gas.
Another aspect of the present invention is to provide a kind of non-crystaline amorphous metal melting method of squeeze forming, includes the following steps：
Step S1 starts die casting machine, is added into die casting machine and waits for the raw metal of melting, after molding, the die casting machine to
Vacuum negative pressure device transmission vacuumizes request signal；
Step S2 vacuumizes request signal by what vacuum negative pressure device reception die casting machine was sent out, starts negative pressure of vacuum dress
Set the vacuum isolating valve between die casting machine, the die casting machine vacuumized, until the die casting machine in vacuum degree with it is described
The vacuum degree equilibrium of vacuum negative pressure device closes the isolating valve, between the vacuum negative pressure device and the die casting machine；
Step S3 starts the vacuum isolating valve between inert gas feedway and die casting machine, is supplied by inert gas
Device supplies inert gas to the die casting machine；
Step S4 closes the vacuum isolating valve between inert gas feedway and die casting machine, and it is negative to be again started up vacuum
Vacuum isolating valve between pressure device and die casting machine extracts inert gas and air in the die casting machine out by vacuum negative pressure device
The mixed gas of composition, until the vacuum degree equilibrium of the vacuum degree and the vacuum negative pressure device in the die casting machine, is closed lazy
Vacuum isolating valve between property gas supply device and die casting machine；
Step S5 judges non-crystaline amorphous metal melting environment whether is formed in the die casting machine, if being formed in the die casting machine
Non-crystaline amorphous metal melting environment, then carry out step S6, if not forming non-crystaline amorphous metal melting environment in the die casting machine, carries out institute
State step S3；
Step S6 by the raw metal die cast for waiting for melting and takes out workpiece in die casting machine.
Preferably, the die casting machine includes that melting storehouse, dnockout cylinder and mold cavity connect the enclosure space to be formed, described
Vacuum negative pressure device is connect with the melting storehouse, and the inert gas feedway is connect with the mold cavity, the step
In S2, the vacuum negative pressure device vacuumizes the enclosure space；In the step S3, the inert gas feedway to
The enclosure space supplies inert gas；In the step S5, the non-crystaline amorphous metal melting environment is in the mold cavity
Oxygen content is less than 5000ppm.
Preferably, the step S6 includes the following steps：
Step S61 passes through the smelting metal raw material under vacuum of the melting cup in melting storehouse；
Step S62 injects the melt from melting storehouse when the temperature of melt in melting cup reaches required smelting temperature
In the dnockout cylinder of injection mechanism；
Step S63 drives knockout rod that tup is driven to be moved along the dnockout cylinder, passes through the tup by driving mechanism
It pushes the melt to enter in mold cavity to be solidified；
Step S64 waits for workpiece machine-shaping in the mold cavity, opens clamping mechanism and takes out workpiece.
Preferably, in the step S2, the vacuum negative pressure device is to when wherein a die casting machine vacuumizes, non-crystaline amorphous metal
It is clear that remaining die casting machine in melting die cast device is respectively at charging, molding, melting injection solidification, die sinking pickup and mold
An operation stage in reason.
Compared with prior art, the present invention has the following advantages and beneficial effect：
In the present invention, die casting machine is vacuumized by vacuum negative pressure device, and by inert gas feedway to die casting
Inert gas is supplied in machine, the air in die casting machine is diluted, and again extracts the mixture of inert gas and air out, it can
Quickly to obtain the melting environment compared with low oxygen content, the acquisition time of low oxygen content melting environment is reduced, so as to shorten part
Molding cycle, can effectively improve the stability and production efficiency of amorphous part.Also, it is not necessarily to molecular pump or diffusion pump
Etc. equipment, reduce die casting equipment cost.
More die casting machines in the present invention share a vacuum negative pressure device, realize the rapid vacuumizing of die casting equipment, drop
The complexity of low existing die casting equipment makes full use of the power of vacuum pump, improves efficiency, reduces cost, is more suitable for extensive
Commercial application.
Description of the drawings
Fig. 1 is pressure-time diagram that existing melting die cast device obtains low oxygen content melting environment；
Fig. 2 is the composition block diagram of non-crystaline amorphous metal melting die cast device of the present invention；
Fig. 3 be non-crystaline amorphous metal melting die cast device of the present invention obtain low oxygen content melting environment pressure-when
Between schematic diagram；
Fig. 4 is the structural schematic diagram of heretofore described die casting machine；
Fig. 5 is the structural schematic diagram of heretofore described vacuum negative pressure device；
Fig. 6 is the structural schematic diagram of an alternative embodiment of non-crystaline amorphous metal melting die cast device of the present invention；
Fig. 7 is the flow diagram of non-crystaline amorphous metal melting method of squeeze forming of the present invention；
Fig. 8 be in the present invention die casting machine by the molding flow diagram of amorphous alloy die-casting.
Specific implementation mode
Embodiment of the present invention described below with reference to the accompanying drawings.Those skilled in the art may recognize that
It arrives, it without departing from the spirit and scope of the present invention, can be with a variety of different modes or combinations thereof to described
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.In addition, in the present specification, attached drawing is drawn not in scale, and identical reference numeral indicates identical part.
The present embodiment is described in detail with reference to Fig. 2-Fig. 8.
Fig. 2 is the composition block diagram of non-crystaline amorphous metal melting die cast device of the present invention, as shown in Fig. 2, institute of the present invention
State non-crystaline amorphous metal melting die cast device, including more die casting machines 100, vacuum negative pressure device 200 and inert gas supply
Device 300, every die casting machine 100 are connect with vacuum negative pressure device 200, inert gas feedway 300 by vacuum pipe,
And it is true between vacuum negative pressure device 200 and die casting machine 100 and between inert gas feedway 300 and die casting machine 100
Vacuum isolating valve is mounted on vacant duct, wherein vacuum negative pressure device 200 vacuumizes die casting machine 100, until die casting machine
The vacuum degree equilibrium of vacuum degree and vacuum negative pressure device 200 in 100, inert gas feedway 300 are supplied to die casting machine 100
Inert gas vacuumizes die casting machine 100 again by vacuum negative pressure device 200, is closed until forming amorphous in die casting machine 100
Golden melting environment, die casting machine 100 is by the raw metal melting die cast of non-crystaline amorphous metal.In Fig. 2 only by taking four die casting machines as an example
It shows, and the present invention is not limited thereto.
After the present invention vacuumizes die casting machine by vacuum negative pressure device, using inert gas feedway to die casting machine
Middle supply inert gas is diluted remaining air in die casting machine, will be lazy in die casting machine again by vacuum negative pressure device
Property gas and the mixture of residual air extract out, by repeatedly " to vacuumize-supply inert gas-pumping true for supply inert gas-
The cycle of sky ", quickly establishes the non-crystaline amorphous metal melting environment of high vacuum low oxygen content, greatlys save the time, shortens amorphous part
Molding cycle, improve the production efficiency of equipment.
Working principle of the present invention is as follows：
When the vacuum pump using rated output vacuumizes the container of certain volume, the vacuum degree in die casting machine
Certain vacuum degree (100~1000Pa) can be reached within the very short time, at this point, most air have been in die casting machine
It is net through draining.But if needing to establish high vacuum, when meeting amorphous melting, thereafter the rate vacuumized in stage can drastically under
Drop.I.e. when the gas of the identical volume in container to be taken away, as the vacuum degree in container declines, used in time will be anxious
Increase severely and add, the remaining air in container is difficult to pump.Fig. 3 is that non-crystaline amorphous metal melting die cast device of the present invention obtains
Pressure-time diagram of low oxygen content melting environment passes through indifferent gas as shown in figure 3, after being vacuumized to die casting machine
Body feeding is filled with inert gas into die casting machine, is diluted to remaining air, then rapid vacuumizing, residual in die casting machine
Remaining mixed gas can be drained only quickly, by being repeated several times, can quickly obtain the hypoxemia of active metal melting
Content environment.
Fig. 4 is the structural schematic diagram of heretofore described die casting machine, as shown in figure 4, the die casting machine include die casting,
Melting storehouse 7, injection mechanism, driving mechanism 12 and control system, wherein die casting includes clamping mechanism 1, dynamic model 15 and determines
Mould 3, clamping mechanism 1 is used to control unlatching and the closure of dynamic model 15 and cover half 3, when dynamic model 15 is closed with cover half 3, dynamic model 15 with
Mold cavity is formed between cover half 3；Melting cup 4 is provided in melting storehouse 7, melting cup 4 is used for smelting metal raw material；Injection mechanism
Including dnockout cylinder 8, knockout rod 13 and tup 9, dnockout cylinder 8 connect to form enclosure space with melting storehouse 7 and mold cavity, knockout rod
13 one end connects driving mechanism 12, and the other end of knockout rod 13 connects tup 9, and tup 9 is inserted into dnockout cylinder 8；Driving mechanism
12 driving knockout rods 13 drive tup 9 to be moved along dnockout cylinder 8, and tup 9 pushes the melt flowed into from melting storehouse 7 in dnockout cylinder 8
Into in mold cavity, wherein driving mechanism can be hydraulic drive mechanism；Control system and clamping mechanism 1 and driving mechanism
12 electrical connections, and control system vacuumizes request signal after dynamic model 15 and cover half 3 are closed to the transmission of vacuum negative pressure device 200.
Preferably, die casting machine 100 further includes die casting board 11, and die casting and driving mechanism 12 are each attached to die casting board
On 11.
Preferably, vacuum negative pressure device 200 is connect with melting storehouse 7 by vacuum pipe 2, air exercise barrel 8,7 and of melting storehouse
The enclosure space that mold cavity is formed vacuumizes, and pacifies on the vacuum pipe 2 between vacuum negative pressure device 200 and melting storehouse 7
Equipped with vacuum isolating valve 5；Inert gas feedway 300 is connect with mold cavity by vacuum pipe 2, is supplied to enclosure space
Inert gas dilutes remaining air in enclosure space, and the vacuum between inert gas feedway 300 and mold cavity
Vacuum isolating valve 5 is installed on pipeline.The components such as knockout rod 13 are respectively positioned on except enclosure space to be vacuumized, so as to keep away
Exempt to cause the pumpdown time long since the volume in vacuum melting storehouse is excessive, improves efficiency.And air exercise barrel 8, melting storehouse 7 and mould
The enclosure space that tool cavity is formed vacuumizes, and the overall process vacuum of melting, injection, solidification may be implemented, convenient for active, oxidation
Non-crystaline amorphous metal part production.
Preferably, the inert gas that inert gas feedway 300 is supplied into die casting machine 100 is helium, neon, argon
It is one or more in gas, Krypton, xenon and radon gas.
In an alternative embodiment, melting cup 4 is induction heating melting cup, and heating device can be arranged, and passes through induction
Coil or resistance wire etc. heat melting cup, to which smelting metal raw material forms melt.
In an alternative embodiment, it is provided with vacuum seal between dynamic model 15 and cover half 3, in dnockout cylinder 8 and beaten
It is provided with vacuum seal between material bar 13, so that the enclosure space that dnockout cylinder 8, melting storehouse 7 and mold cavity are formed is close
Envelope degree is more preferable.
For the ease of the monitoring to the raw metal fusion process in melting cup, it is preferable that temperature is arranged in melting storehouse 7
Sensor or infrared radiation thermometer, the melt temperature for measuring raw metal formation, wait for that melt temperature reaches required melting
When temperature, melt is poured out from melting cup 4.
In an alternative embodiment, control system is additionally operable to the wing drop of control melting cup 4, waits in melting cup 4
When melt temperature reaches required smelting temperature, melt in cup is poured onto in melting storehouse 7 by 4 wing drop of melting cup, from molten
Refining storehouse 7 flows into dnockout cylinder 8.After melt outflow, control system controls melting cup 4 and restores to home position.
Fig. 5 is the structural schematic diagram of heretofore described vacuum negative pressure device, as shown in figure 5, the vacuum negative pressure device
200 include negative pressure of vacuum tank 6, vacuum pump 17 and power control cabinet 16, and negative pressure of vacuum tank 6 and die casting machine 100 and vacuum pump 17 are logical
The connection of vacuum pipe 2 is crossed, and vacuum isolating valve 5 is installed on the vacuum pipe 2 between negative pressure of vacuum tank 6 and vacuum pump 17.
Wherein, vacuum pump 17 has two.
Fig. 6 is the structural schematic diagram of an alternative embodiment of non-crystaline amorphous metal melting die cast device of the present invention,
Wherein, the die casting machine in the non-crystaline amorphous metal melting die cast device in Fig. 6 is carried out by taking press structure shown in Fig. 4 as an example
Illustrate, and the present invention is not limited thereto, as shown in fig. 6, the non-crystaline amorphous metal melting die cast device includes six die casting machines
100, respectively No. 1 die casting machine, No. 2 die casting machines, No. 3 die casting machines, No. 4 die casting machines, No. 5 die casting machines and No. 6 die casting machines, six pressures
Melting storehouse 7 in casting machine is connect by vacuum pipe 2 with vacuum negative pressure device 200, and the mold cavity formed after molding is logical
Vacuum pipe 2 is crossed to connect with inert gas feedway 300.In actual production, according to the weight of production task, determine in amorphous
The quantity of the die casting machine of required unlatching in alloy melting die cast device.
Another aspect of the present invention is to provide a kind of non-crystaline amorphous metal melting method of squeeze forming, and Fig. 7 is of the present invention
The flow diagram of non-crystaline amorphous metal melting method of squeeze forming, as shown in fig. 7, the non-crystaline amorphous metal melting method of squeeze forming packet
Include following steps：
Step S1 starts die casting machine, is added into die casting machine and waits for the raw metal of melting, and after molding, die casting machine is to vacuum
Negative pressure device transmission vacuumizes request signal；
Step S2 vacuumizes request signal by what vacuum negative pressure device reception die casting machine was sent out, starts negative pressure of vacuum dress
Set the vacuum isolating valve between die casting machine, the die casting machine vacuumized, until the die casting machine in vacuum degree with it is described
The vacuum degree equilibrium of vacuum negative pressure device closes the isolating valve, between the vacuum negative pressure device and the die casting machine, without
Establish ultra-high vacuum environment；
Step S3 starts the vacuum isolating valve between inert gas feedway and die casting machine, is supplied by inert gas
Device supplies inert gas to the die casting machine；
Step S4 closes the vacuum isolating valve between inert gas feedway and die casting machine, and it is negative to be again started up vacuum
Vacuum isolating valve between pressure device and die casting machine extracts inert gas and air in the die casting machine out by vacuum negative pressure device
The mixed gas of composition, until the vacuum degree equilibrium of the vacuum degree and the vacuum negative pressure device in the die casting machine, is closed lazy
Vacuum isolating valve between property gas supply device and die casting machine；
Step S5 judges non-crystaline amorphous metal melting environment whether is formed in the die casting machine, if being formed in the die casting machine
Non-crystaline amorphous metal melting environment, then carry out step S6, if not forming non-crystaline amorphous metal melting environment in the die casting machine, carries out institute
State step S3；
Step S6 by the raw metal die cast for waiting for melting and takes out workpiece in die casting machine.
After carrying out step S6, dynamic model and cover half are closed again by clamping mechanism, mold cavity is formed, to mold
Cavity vacuumizes, and prepares for melting die cast next time.
Cause the pumpdown time long in order to avoid the volume due to vacuum melting storehouse is excessive, and realizes melting, injection, coagulates
Solid overall process vacuum, convenient for the production of active, oxidation non-crystaline amorphous metal part, it is preferable that die casting machine includes melting storehouse, beats
Barrel and mold cavity connect the enclosure space to be formed, and vacuum negative pressure device is connect with melting storehouse by vacuum pipe, inertia
Gas supply device is connect with mold cavity by vacuum pipe, and vacuum isolating valve is mounted on vacuum pipe, in institute
It states in step S2, the vacuum negative pressure device vacuumizes the enclosure space；In the step S3, the inert gas supply
Device supplies inert gas to the enclosure space；In the step S5, the non-crystaline amorphous metal melting environment is the mould type
Oxygen content in chamber is less than 5000ppm.
Fig. 8 is that die casting machine is by the molding flow diagram of amorphous alloy die-casting in the present invention, as shown in figure 8, the step
S6 includes the following steps：
Step S61 passes through the smelting metal raw material under vacuum of the melting cup in melting storehouse；
Step S62 injects the melt from melting storehouse when the temperature of melt in melting cup reaches required smelting temperature
In the dnockout cylinder of injection mechanism；
Step S63 drives knockout rod that tup is driven to be moved along the dnockout cylinder, passes through the tup by driving mechanism
It pushes the melt to enter in mold cavity to be solidified；
Step S64 waits for workpiece machine-shaping in the mold cavity, opens clamping mechanism and takes out workpiece.
In process of production, in order to make full use of the power of vacuum pump, it is preferable that more die casting machines are filled with negative pressure of vacuum
Set and connected with inert gas feedway, in the step S2, vacuum negative pressure device to when wherein a die casting machine vacuumizes,
Remaining die casting machine in non-crystaline amorphous metal melting die cast device is respectively at charging, molding, melting injection solidification, die sinking pickup
With an operation stage in mold cleaning, more die casting machines are vacuumized in turn to realize, improve die cast device
Working efficiency.For example, the die cast device of non-crystaline amorphous metal melting shown in Fig. 6 includes six die casting machines, respectively No. 1 die casting
Machine, No. 2 die casting machines, No. 3 die casting machines, No. 4 die casting machines, No. 5 die casting machines and No. 6 die casting machines, as shown in table 1 below, when No. 3 die casting machines
When in the process vacuumized, No. 1 die casting machine, No. 2 die casting machines, No. 4 die casting machines, No. 5 die casting machines and No. 6 die casting machines are respectively at
A process in charging, molding, melting injection solidification, die sinking pickup and mold cleaning, consequently facilitating being appointed according to Workshop Production
The weight of business determines the quantity of die casting machine for needing to open, and adjusts the station between each die casting machine, it is ensured that each die casting machine by
One vacuumizes to vacuum negative pressure device request, and vacuum pump is in normally open and will not cause the power dissipation of vacuum pump.
Table 1
Wherein, in table 1, * indicates current process.
It is further illustrated below using of the present invention non-by taking the die cast device of non-crystaline amorphous metal melting shown in Fig. 6 as an example
Peritectic alloy melting method of squeeze forming carries out the molding workflow of amorphous alloy die-casting.Wherein, in non-crystaline amorphous metal smelting apparatus
Using inert gas feedway as high-purity argon gas chamber, supplies into die casting machine and illustrate for argon gas, and the present invention and unlimited
In this.Start the vacuum pump 17 in vacuum negative pressure device, after a period of time so that negative pressure of vacuum tank 6 is in minimum atmospheric pressure
State, vacuum pump 17 are in normally open.Start six die casting machines 100 one by one, is added into melting cup 4 and waits for that the metal of melting is former
Material, when wherein die casting machine is in the operation stage vacuumized, other five die casting machines be respectively at charging, molding,
An operation stage in melting injection solidification, die sinking pickup and mold cleaning.
For a wherein die casting machine, after dynamic model 15 and cover half 3 are closed by clamping mechanism 1, formation include dnockout cylinder 8,
Enclosure space including melting storehouse 7 and mold cavity vacuumizes request signal to the transmission of negative pressure of vacuum tank 6, passes through vacuum pump 17
Enclosure space is vacuumized, when the vacuum degree equilibrium in vacuum degree and the negative pressure of vacuum tank in enclosure space is to close to 1000Pa
When, the vacuum isolating valve 2 between negative pressure of vacuum tank 6 and melting storehouse 7 is closed, be filled with into enclosure space from high-purity argon gas chamber-
The argon gas of 0.5MPa is again started up negative pressure of vacuum tank and is vacuumized to enclosure space, balance to close to 1000Pa when, close vacuum every
Disconnected valve 2, repeatedly the step of " applying argon gas-vacuumize-applying argon gas-vacuumize ", for example, it may be 2-3 time, up to mould type
The non-crystaline amorphous metal melting environment that oxygen content is less than 5000ppm is formed in chamber, then to raw metal die cast and takes out workpiece.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of non-crystaline amorphous metal melting die cast device, which is characterized in that including more die casting machines, vacuum negative pressure device and
Inert gas feedway, every die casting machine pass through vacuum with the vacuum negative pressure device, the inert gas feedway
Pipeline connects, between the vacuum negative pressure device and the die casting machine and the inert gas feedway and the die casting machine
Between vacuum pipe on be mounted on vacuum isolating valve, the vacuum negative pressure device vacuumizes the die casting machine, until institute
State the vacuum degree equilibrium of the vacuum degree and the vacuum negative pressure device in die casting machine, the inert gas feedway is to the pressure
Casting machine supplies inert gas, is vacuumized to the die casting machine again by the vacuum negative pressure device, until in the die casting machine
Middle formation non-crystaline amorphous metal melting environment, the die casting machine is by the raw metal melting die cast of non-crystaline amorphous metal.
2. non-crystaline amorphous metal melting die cast device according to claim 1, which is characterized in that the die casting machine includes：
Die casting, the die casting include clamping mechanism, dynamic model and cover half, and the clamping mechanism is for controlling the dynamic model
Unlatching with the cover half and closure are formed when the dynamic model is closed with the cover half between the dynamic model and the cover half
Mold cavity；
Melting storehouse, melting cup is provided in the melting storehouse, and the melting cup is used for smelting metal raw material；
Injection mechanism, the injection mechanism include dnockout cylinder, knockout rod and tup, the dnockout cylinder and the melting storehouse and described
Mold cavity connects to form enclosure space, and one end of the knockout rod connects driving mechanism, the other end connection of the knockout rod
The tup, the tup are inserted into the dnockout cylinder；
Driving mechanism, the driving mechanism drive the knockout rod that the tup is driven to be moved along the dnockout cylinder, the hammer
Head promotion flows into the melt in the dnockout cylinder from the melting storehouse and enters in the mold cavity；And
Control system, the control system are electrically connected with the clamping mechanism and the driving mechanism, and the control system exists
The dynamic model sends to the vacuum negative pressure device after being closed with the cover half and vacuumizes request signal.
3. non-crystaline amorphous metal melting die cast device according to claim 2, which is characterized in that the die casting machine further includes
Die casting board, the die casting and the driving mechanism are each attached on the die casting board.
4. non-crystaline amorphous metal melting die cast device according to claim 2, which is characterized in that the vacuum negative pressure device
It is connect by vacuum pipe with the melting storehouse, the closing that the dnockout cylinder, the melting storehouse and the mold cavity are formed
Space vacuumizes；The inert gas feedway is connect with the mold cavity, and inert gas is supplied to the enclosure space.
5. non-crystaline amorphous metal melting die cast device according to claim 1, which is characterized in that the vacuum negative pressure device
Including negative pressure of vacuum tank, vacuum pump and power control cabinet, the negative pressure of vacuum tank passes through with the die casting machine and the vacuum pump
Vacuum pipe connects, and is equipped with vacuum isolating valve on the vacuum pipe between the negative pressure of vacuum tank and the vacuum pump.
6. non-crystaline amorphous metal melting die cast device according to claim 1, which is characterized in that the inert gas is helium
It is one or more in gas, neon, argon gas, Krypton, xenon and radon gas.
7. a kind of non-crystaline amorphous metal melting method of squeeze forming, which is characterized in that include the following steps：
Step S1 starts die casting machine, is added into die casting machine and waits for the raw metal of melting, and after molding, the die casting machine is to vacuum
Negative pressure device transmission vacuumizes request signal；
Step S2 vacuumizes request signal by what vacuum negative pressure device received that die casting machine sends out, start vacuum negative pressure device with
Vacuum isolating valve between die casting machine vacuumizes the die casting machine, until the vacuum degree in the die casting machine and the vacuum
The vacuum degree equilibrium of negative pressure device closes the isolating valve, between the vacuum negative pressure device and the die casting machine；
Step S3 starts the vacuum isolating valve between inert gas feedway and die casting machine, passes through inert gas feedway
Inert gas is supplied to the die casting machine；
Step S4 closes the vacuum isolating valve between inert gas feedway and die casting machine, and is again started up negative pressure of vacuum dress
The vacuum isolating valve between die casting machine is set, extract inert gas in the die casting machine out by vacuum negative pressure device forms with air
Mixed gas, until the die casting machine in vacuum degree and the vacuum negative pressure device vacuum degree equilibrium, closing indifferent gas
Vacuum isolating valve between body feeding and die casting machine；
Step S5 judges non-crystaline amorphous metal melting environment whether is formed in the die casting machine, if forming amorphous in the die casting machine
Alloy melting environment then carries out step S6, if not forming non-crystaline amorphous metal melting environment in the die casting machine, carries out the step
Rapid S3；
Step S6 by the raw metal die cast for waiting for melting and takes out workpiece in die casting machine.
8. non-crystaline amorphous metal melting method of squeeze forming according to claim 7, which is characterized in that the die casting machine includes molten
Refining storehouse, dnockout cylinder and mold cavity connect the enclosure space to be formed, and the vacuum negative pressure device is connect with the melting storehouse, institute
It states inert gas feedway to connect with the mold cavity, in the step S2, the vacuum negative pressure device is to the closing
Space vacuumizes；In the step S3, the inert gas feedway supplies inert gas to the enclosure space；The step
In rapid S5, the non-crystaline amorphous metal melting environment is that the oxygen content in the mold cavity is less than 5000ppm.
9. non-crystaline amorphous metal melting method of squeeze forming according to claim 8, which is characterized in that the step S6 include with
Lower step：
Step S61 passes through the smelting metal raw material under vacuum of the melting cup in melting storehouse；
The melt is injected injection by step S62 when the temperature of melt in melting cup reaches required smelting temperature from melting storehouse
In the dnockout cylinder of mechanism；
Step S63 drives knockout rod that tup is driven to be moved along the dnockout cylinder, is pushed by the tup by driving mechanism
The melt, which enters in mold cavity, to be solidified；
Step S64 waits for workpiece machine-shaping in the mold cavity, opens clamping mechanism and takes out workpiece.
10. non-crystaline amorphous metal melting method of squeeze forming according to claim 7, which is characterized in that in the step S2, institute
Vacuum negative pressure device is stated to when wherein a die casting machine vacuumizes, the remaining die casting machine in non-crystaline amorphous metal melting die cast device
An operation stage being respectively in charging, molding, melting injection solidification, die sinking pickup and mold cleaning.
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