CN108453203A - Amorphous alloy die casting die forging device and non-crystaline amorphous metal part and its former and forming method - Google Patents
Amorphous alloy die casting die forging device and non-crystaline amorphous metal part and its former and forming method Download PDFInfo
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- CN108453203A CN108453203A CN201710089590.3A CN201710089590A CN108453203A CN 108453203 A CN108453203 A CN 108453203A CN 201710089590 A CN201710089590 A CN 201710089590A CN 108453203 A CN108453203 A CN 108453203A
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- amorphous alloy
- die casting
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- alloy die
- cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/027—Trimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
Abstract
The invention discloses a kind of amorphous alloy die casting die forging devices and non-crystaline amorphous metal part and its former and forming method.Open-celled structure is wherein formed on amorphous alloy die casting, die forging device includes vacuum tank, limit assembly, molding component and heating component；The inside of the vacuum tank has vacuum chamber；The limit assembly is fixedly mounted in the vacuum chamber and has the cavity for placing amorphous alloy die casting thereon；The molding component be moveably mounted in vacuum chamber relative to limit assembly and including with the matched pressure head of open-celled structure shape on the amorphous alloy die casting that is fixed in cavity；The heating component is arranged in the vacuum tank for controlling the temperature in the vacuum chamber.The major defect to affect the mechanical properties that die-casting process is brought is can effectively solve the problem that using the die forging device, the internal stress of part is eliminated, keeps the interior tissue of non-crystaline amorphous metal part even closer, improves the mechanical property and service life of part.
Description
Technical field
The present invention relates to non-crystaline amorphous metal forming parts fields, and in particular, to a kind of amorphous alloy die casting die forging device
With non-crystaline amorphous metal part and its former and forming method.
Background technology
Non-crystaline amorphous metal is also known as glassy metal, is a kind of metal solid of longrange disorder, typically by being quickly cooled down metal
Melt and obtain, be earliest by the U.S. Duwez professor in nineteen sixty invent.The atom of amorphous alloy in disorderly arranged, because
The defects of vacancy in crystal alloy, dislocation, crystal boundary and fault may be not present, this characteristic make it not only have excellent corrosion resistant
Perfect plasticity when corrosion, high intensity, high rigidity, high-wearing feature, high fatigue resistance, surrender, without processing hardening phenomenon, but also table
Reveal excellent soft magnetism and hard magnetic property and superconducting characteristic etc., there is potential application prospect in many fields.
Currently, a kind of typical moulding process of non-crystaline amorphous metal is die cast, such as in Publication No.
A kind of amorphous alloy die-casting equipment and amorphous alloy die-casting technique are disclosed in the Chinese invention patent of CN102527982A, and are had
Body discloses the amorphous alloy die-casting equipment：Can be closed with openable fixed half and moving half and when the two is closed
Die cavity is limited between them；It inside defines the closed bin of closed chamber and the closed bin has feeding port；It is connected with closed bin
Protective gas feedway from protective gas to closed chamber and the indoor protective gas of closing chamber for supplying are positive pressure；
The melting vessel being located in closed bin, the melting vessel is for receiving and melting the non-crystaline amorphous metal being added from the feeding port；With
Die cavity is connected to and the injection cylinder with melt inlet；It is equipped in injection cylinder for molten amorphous alloy melt to be ejected into die cavity
Interior injection plug；Driving device is connected with the injection plug for driving the injection plug to be moved in the injection cylinder.This side
Method is after bulk amorphous alloys block is put into the vacuum heating indoor fusing of equipment by feeding port, then to pour into and mould cavity
In injection cylinder, injection plug is driven, the amorphous liquid after fusing is pressed into die cavity and is molded.
The typical moulding process of another kind of non-crystaline amorphous metal is die-forging forming, such as in Publication No. CN1456401 China
A kind of non-crystalline alloy superplastic die forging building mortion and method are disclosed in patent of invention, and specifically disclose this
Device is made of vacuum drying oven, replaceable pressure head, mold three parts；Replaceable pressure head is by inner ram, outer ram, sliding block, coupling seat
Composition, mold are made of mold, ejecting mechanism.Its technique is that blank and mold are placed in vacuum drying oven, when vacuum degree reaches 8 ×
10-3It when Pa, begins to warm up, 0.5~3.0 DEG C/s of heating speed；Heating temperature should be between Tg~Tx；Shape strain rate range
It is 1 × 10-2~5 × 10-4S-1.The method is large block amorphous Bear-grudge material to be put into mold, and mold is placed in vacuum chamber, mold
It vacuumizes and heats in vacuum chamber, and logical inert gas shielding and the cooling method for preparing amorphous part.
However, there are following defects for existing non-crystaline amorphous metal moulding process：(1) non-crystaline amorphous metal part prepared by die cast
In inevitably there is the defects of bubble, stomata, shrinkage cavity, cinder hole, this allows for non-crystaline amorphous metal and is doing stressed member in use, tight
Ghost image rings its mechanical property；(2) die-forging forming is prepared in the process of non-crystaline amorphous metal part, it is desirable that the part of production cannot be too
Complexity, due to shaping strain rate ranging from 1 × 10-2~5 × 10-4S-1So that this process is not suitable for preparing big ruler
It is very little, complicated non-crystaline amorphous metal part；And when preparing small size part using this process, molding time is too
Long, production efficiency is too low, deposits Ben Taigao, is not suitable for mass production.
Invention content
The object of the present invention is to provide a kind of amorphous alloy die casting die forging device and non-crystaline amorphous metal parts and its molding to set
Standby and forming method, to improve the product quality of non-crystaline amorphous metal while improving the production efficiency.
To achieve the goals above, according to the first aspect of the invention, a kind of amorphous alloy die casting die forging dress is provided
It sets, open-celled structure is formed on the amorphous alloy die casting, which includes：Vacuum tank, limit assembly, molding component
And heating component；The inside of the vacuum tank has vacuum chamber；The limit assembly is fixedly mounted in the vacuum chamber and it
The upper cavity with for placing amorphous alloy die casting；The molding component is movably installed relative to the limit assembly
In the vacuum chamber and including with the open-celled structure shape on the amorphous alloy die casting that is fixed in the cavity
The pressure head matched；The heating component is arranged in the vacuum tank for controlling the temperature in the vacuum chamber.
According to the second aspect of the invention, a kind of non-crystaline amorphous metal forming parts equipment is provided, the non-crystaline amorphous metal part
Former includes being used to prepare the die cast device of amorphous alloy die casting and surpassing to the amorphous alloy die casting
The amorphous alloy die casting die forging device according to the present invention of mold forging finishing.
According to the third aspect of the present invention, a kind of non-crystaline amorphous metal method for forming parts is provided, this method includes following
Step：S1, amorphous alloy die casting is provided；S2, by the amorphous alloy die casting in non-crystaline amorphous metal according to the present invention
Super mold forging finishing is carried out in die casting die forging device.
According to the fourth aspect of the present invention, a kind of non-crystaline amorphous metal part is provided, the amorphous alloy die casting is by basis
Method of the present invention is prepared.
Using amorphous alloy die casting die forging device of the present invention and non-crystaline amorphous metal part and its former and forming method,
By carrying out super mold forging finishing to amorphous alloy die casting, it is not only able to effectively solve the influence mechanics that die-casting process is brought
The major defect of performance eliminates the internal stress of part, keeps the interior tissue of non-crystaline amorphous metal part even closer, improves the power of part
Learn performance and service life；And Shape correction can be carried out to the appearance and size of amorphous alloy die casting, improve accessory size
Precision, while applying also for producing complex-shaped, large-sized non-crystaline amorphous metal part.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram according to amorphous alloy die casting in an embodiment of the present invention；
Fig. 2 shows the structural schematic diagrams according to amorphous alloy die casting die forging device in an embodiment of the present invention；
Fig. 3 to Fig. 6, which is shown, to be surpassed according in an embodiment of the present invention using amorphous alloy die casting die forging device
Flow diagram when mold forging finishing；Wherein：
Fig. 3 is shown amorphous alloy die casting is put into the vacuum chamber of die forging device after, when pressure head is located at first position A
The structural schematic diagram of amorphous alloy die casting die forging device；
Fig. 4 shows amorphous alloy die casting die forging device when drive ram is moved to second position B by first position A
Structural schematic diagram；
Fig. 5 shows amorphous alloy die casting die forging device when drive ram is moved to the third place C by second position B
Structural schematic diagram；
Fig. 6 shows that drive ram moves back to first position A by the third place C, and drives mandril that will forge essence through super mold
Processing obtains the structural schematic diagram of amorphous alloy die casting die forging device when the ejection of non-crystaline amorphous metal part；
Fig. 7 shows the structural schematic diagram of the non-crystaline amorphous metal part flexbile gear prepared by according to embodiments of the present invention 1.
Reference sign
10 it is amorphous alloy die casting, 11 be the interior sidewall surface of amorphous alloy die casting, 12 is amorphous alloy die casting
Bottom wall, 20 be vacuum tank, 21 be babinet, 22 be pedestal, 30 be limit assembly, 31 be cavity, 32 be the first heating plate, 321 be
The wall surface of limiting groove in first heating plate, 33 be the first thermal insulation board, 34 be the first die holder, 35 be mandril, 40 molding components,
41 be pressure head, 411 be the outer side surface of pressure head, 412 be the wall surface of pressure head, 42 be the second heating plate, 421 be limit pressing plate,
422 it is the pressure head face for limiting pressing plate, 423 be spacing block set, 43 be the second thermal insulation board, 44 be the second die holder, 45 be compression bar, 50 is
Heating member, 60 are guide post and 70 to pick and place part mouth.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Be directed in non-crystaline amorphous metal part prepared by die cast in the prior art inevitably exist bubble, stomata,
The defects of shrinkage cavity, cinder hole, this allows for non-crystaline amorphous metal and is doing stressed member in use, seriously affecting the deficiency of its mechanical property,
A kind of amorphous alloy die casting die forging device is provided in the present invention, as shown in Figure 1, being formed on the amorphous alloy die casting 10
There is open-celled structure, as shown in Fig. 2, the die forging device includes：Vacuum tank 20, limit assembly 30, molding component 40 and heating component；
The inside of the vacuum tank has vacuum chamber；The limit assembly 30 is fixedly mounted in the vacuum chamber and has thereon and uses
In the cavity 31 for placing amorphous alloy die casting 10；The molding component 40 is movably installed relative to the limit assembly 30
In the vacuum chamber and including with the open-celled structure shape on the amorphous alloy die casting 10 that is fixed in the cavity 31
The matched pressure head of shape 41；The heating component is arranged in the vacuum tank 20 for the temperature in controlling the vacuum chamber.
Die forging device according to the present invention, under preferable case, the inside of open-celled structure in the amorphous alloy die casting 10
Wall surface 11 has a draft angle outwardly, and the outer side surface 411 of the pressure head 41 has a draft angle inwardly, and the pressure head 41
The absolute value of outer side surface 411 and the drafting angle of the interior sidewall surface 11 of corresponding aperture structure in the amorphous alloy die casting 10
It is equal.Outer side surface 411 by pressure head described in Proper Match 41 and corresponding aperture structure in the amorphous alloy die casting 10
Interior sidewall surface 11 drafting angle so that pressure head 41 during moving up and down, the outside wall surface 411 of pressure head always with amorphous
The interior sidewall surface 11 of corresponding aperture structure is parallel in alloy pressuring casting 10, pressure head can be enable smoothly to put in amorphous in this way
In alloy pressuring casting 10 in corresponding aperture structure.
Die forging device according to the present invention, under preferable case, the pressure head 41 is along perpendicular to the cross section of its moving direction
Middle diameter dimension is more than the size of diameter in 10 corresponding position cross section of the amorphous alloy die casting, and preferably the two size difference is
0.15-0.25mm.By both there are certain size is poor, to be conducive to promote pressure head 41 during moving down,
The outside wall surface 411 of pressure head can squeeze the interior sidewall surface 11 of corresponding aperture structure in amorphous alloy die casting 10, so that
It obtains amorphous alloy die casting interior tissue and is pressed closer, and then reduction bubble, stomata, shrinkage cavity and cinder hole therein etc. lack
It falls into.
Die forging device according to the present invention, under preferable case, the shape of the cavity 31 and the amorphous alloy die casting
10 shape matches, when the amorphous alloy die casting 10 is mounted in the cavity 31, the interior sidewall surface of the cavity 31
There are the unilateral gaps of 0.03-0.05 between the outer side surface of the amorphous alloy die casting 10.By making cavity 31
There are gaps between interior sidewall surface and the outer side surface of the amorphous alloy die casting 10, on the one hand can be by amorphous alloy die-casting
Part 10 is smoothly put into cavity 31, is on the other hand advantageously allowed pressure head 41 and is accordingly opened in the amorphous alloy die casting 10
When the inside movement of pore structure, the outer side surface 411 of pressure head 41 can be to corresponding aperture knot in the amorphous alloy die casting 10
The interior sidewall surface 11 of structure is squeezed so that amorphous alloy die casting 10 expands outwardly, when the outside of amorphous alloy die casting 10
After wall surface touches the interior sidewall surface of the cavity 31, no longer expand outwardly.In above process, amorphous alloy die casting 10 is logical
Crossing to be extruded makes its interior tissue be pressed closer, and then the defects of reduction bubble therein, stomata, shrinkage cavity and cinder hole.
Die forging device according to the present invention, under preferable case, the heating component including the first heating plate 32 and second plus
Hot plate 42, first heating plate 32 are removably arranged in the limit assembly 30, and the cavity 31 is formed in described the
In one heating plate 32, or the mold with the cavity 31 is mounted in first heating plate 32；Second heating plate
42 are mounted in the molding component 40, and the pressure head 41 is detachably arranged in second heating plate 42.Pass through setting
First heating plate 32 and the second heating plate 41 are not only advantageous to the structure of optimization heating component, and are more advantageous to cavity 31
With the control of the temperature of pressure head 41 and the amorphous alloy die casting being placed in the cavity 31 10.
Die forging device according to the present invention, under preferable case, in first heating plate 32 and second heating plate 42
The heating member 50 for respectively including board body and being fixed in the board body.Wherein not for the selection of heating member 50
Particular/special requirement can be electrical bar, can also be sensing heating stick.Moreover, in the present invention in the first heating plate 32
Also there is no particular/special requirements for the set-up mode of heating member 50, as long as being distributed on the periphery of the cavity 31；Add for second
Also there is no particular/special requirements for the set-up mode of heating member in hot plate 42, as long as being evenly distributed in the second heating version 42 i.e.
It can.
Die forging device according to the present invention, under preferable case, the molding component 40 includes limit pressing plate 421, described
Limit pressing plate 421 is fixed on the center of second heating plate 42, and the limit pressing plate 421 is far from second heating plate
42 side forms pressure head face 422, and the pressure head 41 is fixed on the center in the pressure head face 422；The limit assembly 30
In further include the centre for being formed in first heating plate 32 limiting groove, the bottom of the limiting groove, which is formed, divides mould
Face 321, the cavity 31 are formed in the center of die joint 321；The limit pressing plate and the limiting groove structure matching,
And when the pressure head face 422 and the die joint 321 are affixed, the limit assembly 30 and molding component 40 form molding knot
Structure.The limiting groove for limiting pressing plate 421 by setting and being formed in the first heating plate 32 so that molding component 40 is relative to limit
When relative motion occurs for hyte part 30, when limiting the pressure head face 422 of pressing plate 421 and the die joint 321 of limiting groove abuts against,
Stop motion, and then realize the distance between pressure head 41 and 31 wall surface of the cavity when by controlling molding, it is made to control
The thickness of the bottom wall 12 of standby non-crystaline amorphous metal part.Under preferable case, the thickness of the bottom wall 12 of the amorphous alloy die casting 10
The distance between pressure head 41 and 31 wall surface of the cavity are big when than molding, and the difference of the two passes through pressure between 0.1-0.2mm
First 41 wall surface 412 squeezes the bottom wall 12 of amorphous alloy die casting 10, is conducive to make non-crystaline amorphous metal part bottom wall group
It knits and is pressed closer, and then the defects of reduction bubble therein, stomata, shrinkage cavity and cinder hole.
Die forging device according to the present invention, under preferable case, the molding component 40 include be fixed on described second plus
Multiple spacing block sets 423 on hot plate 42, multiple spacing block sets 423 are symmetrically arranged in the both sides of the pressure head 41, and preferably
The height of each spacing block set 423 is identical as the limit height of pressing plate 421；Further include being formed in the limit assembly 30
On first pressing plate 32, and with the one-to-one multiple limit trepannings of the spacing block set 423, the spacing block set 423
It is matched with the limit open-celled structure.By the way that multiple spacing block sets 423 are arranged in the both sides of pressure head 41, by make its with positioned at institute
The limit trepanning stated on spacing block set 423 corresponds to combination, and the axle center for advantageously allowing pressure head and the axle center of cavity are coaxial, after die forging
Part uniform wall thickness, material structure even density, accurate size.
Die forging device according to the present invention, under preferable case, the limit assembly 30 includes the first thermal insulation board 33, described
First heating plate 32 is mounted on first thermal insulation board 33；The molding component 40 includes the second thermal insulation board 43, and described
Two heating plates 42 are mounted on second thermal insulation board 43.By the way that the first thermal insulation board 33 and the second thermal insulation board 43 is arranged, be conducive to
Stop the outside quick conduction of thermal energy caused by the first heating plate 32 and the second heating plate 42, and then concentrate heat, avoids heat
It can dissipate outside, the pressure head made is in set temperature value always with cavity, and then realizes energy-efficient effect.
Die forging device according to the present invention, under preferable case, the limit assembly 30 includes the first die holder 34, and described
One thermal insulation board 33 is mounted on first die holder 34；The molding component 40 includes the second die holder 44, and described second is heat-insulated
Plate 43 is mounted on second die holder 44.
Die forging device according to the present invention under preferable case, is equipped on second die holder 44 towards first mould
The guide post 60 that seat 34 extends；It is formed on first die holder 43 and the matched guide through hole of 60 size of the guide post, institute
The first die holder 43 is stated to be connected by the guide through hole and the guide post.
Die forging device according to the present invention, under preferable case, the molding component 40 includes compression bar 45, the compression bar 45
One end extends to the outside of the vacuum tank 20, and the other end is connected with second die holder 44 to drive 40 phase of molding component
The limit assembly 30 is moved.
Die forging device according to the present invention, under preferable case, the limit assembly 30 includes relative to the cavity 31
Moveable mandril 35, one end of the mandril 35 extend to the outside of the vacuum tank 20, and the other end passes through first mould
The 34, first thermal insulation board 33 of seat and the first heating plate 32 form at least partly wall surface of the cavity 31, or the support tool
There is the mold of the cavity 31.
Die forging device according to the present invention, under preferable case, the vacuum tank 20 includes babinet 21 and pedestal 22, the limit
Hyte part 40 is fixed on the pedestal 22；The babinet 21 includes the top plate being oppositely arranged with the pedestal 22, the molding
Component 30 is moveably mounted on the top plate.
Meanwhile a kind of non-crystaline amorphous metal forming parts equipment is additionally provided in the present invention, which sets
Standby includes being used to prepare the die cast device of amorphous alloy die casting and carrying out super mold forging to the amorphous alloy die casting
The amorphous alloy die casting die forging device according to the present invention of finishing.
Above-mentioned non-crystaline amorphous metal forming parts equipment provided by the present invention focuses on die cast and precision die forging
Molding is combined together, to improve the product quality of non-crystaline amorphous metal while improving the production efficiency.Wherein for die cast
There is no particular/special requirements for device, as long as it is used in combination i.e. with amorphous alloy die casting die forging device according to the present invention
It can.Used die cast device can be arbitrary commercial device in the present invention, such as Publication No. may be used
Amorphous alloy die-casting equipment disclosed in the Chinese invention patent of CN102527982A.
In addition, additionally providing a kind of non-crystaline amorphous metal method for forming parts in the present invention, this approach includes the following steps：
S1, amorphous alloy die casting is provided；S2, by the amorphous alloy die casting in amorphous alloy die casting according to the present invention
Super mold forging finishing is carried out in die forging device.
Above-mentioned non-crystaline amorphous metal method for forming parts provided by the present invention focuses on die cast and precision die forging
Molding is combined together, to improve the product quality of non-crystaline amorphous metal while improving the production efficiency.Wherein for die cast
There is no particular/special requirements for method, as long as by the super modeling of itself and application amorphous alloy die casting die forging device according to the present invention
Die forging finishing is used in combination.Used method of squeeze forming is referred to the routine side of this field in the present invention
Method, such as the amorphous alloy die-casting method disclosed in the Chinese invention patent of Publication No. CN102527982A may be used.
In the case of with the method for the invention it is preferred to, the S2 includes：S21, the vacuum chamber of the die forging device is taken out very
Sky, and it is passed through inert gas so that air pressure reaches preset air pressure in the vacuum chamber, and the preset air pressure is more than atmospheric pressure, excellent
It is 1.01-1.05 atmospheric pressure to select the preset air pressure；S22, control heating component are heated, and temperature in the vacuum chamber is made
Reach the supercooling region (Tg~Tx) of the amorphous alloy die casting；S23, the amorphous alloy die casting is put into limit group
In the cavity of part；Movable press head in S24, driving molding component, to the non-crystaline amorphous metal being placed in the cavity of the limit assembly
Die casting carries out super mold forging finishing.
In the case of with the method for the invention it is preferred to, in the S23 in the case where being continually fed into inert gas, by institute
Amorphous alloy die casting is stated to be put into the cavity of the limit assembly.By being continually fed into inert gas, vacuum is remained
Air pressure is more than the external world in chamber, opens when picking and placeing part mouth 70 of vacuum tank in a short time, and external gas (oxygen) will not enter
Into vacuum, can prevent in high temperature die forging, part is aoxidized.In practical operation, pick and place part mouth 70 and vacuum tank it
Between be equipped with containment member (not shown).
In the case of with the method for the invention it is preferred to, in the S24 described in being put into the amorphous alloy die casting
After in the cavity of die forging device, wait for that the amorphous alloy die casting is preheated to temperature and reaches in supercooling region rear-guard dynamic model pressure component
Movable press head, preferably preheating time are 6-8min.
In the case of with the method for the invention it is preferred to, the amorphous alloy die casting is being put into limit in the S23
In the cavity of hyte part, after forming structure as shown in Figure 3；The S24 includes：S241, the driving pressure head are by far from the limit
The first position A of hyte part is moved to the second position B with the amorphous alloy die casting initial contact, is formed as shown in Figure 4
Structure；S242, under scheduled molding rate of straining, the pressure head is moved to predetermined pressure by the second position B
Limit assembly 30 is in the third place C of molding state with molding component 40, forms structure as shown in Figure 5；At S243, pressurize
After managing the predetermined time, the pressure head is driven to move back to the first position A by the third place C, and drive mandril will be through super mold
Forging finishing obtains the ejection of non-crystaline amorphous metal part, forms structure as shown in FIG. 6.
In the case of with the method for the invention it is preferred to, the scheduled molding rate of straining is 1 × 10-2~5 × 10-4S-1；The predetermined pressure is 400-500MPa；The predetermined time is 1-5min.By by scheduled molding rate of straining, predetermined
Pressure and predetermined time control advantageously allow that product surface is smooth, and interior tissue is fine and closely woven within the above range, product die forging at
Type is reliable, accurate size.
According to the method for the present invention, this is referred to there is no particular/special requirement for the ingredient of non-crystaline amorphous metal and content
Conventional ingredient when field is conventionally by die cast and die-forging forming and content.Such as the non-crystaline amorphous metal is
ZraAlbBecCudMe, wherein M is one or more of Nb, Sc, Ta, Ni, Co, Y, Ag, Fe, Sn, Hf, Ti and rare earth element member
Element；A, b, c, d, e are atomic percentage, 30≤a≤70,3≤b≤35,3≤c≤35,3≤d≤40,5≤e≤30.It is more excellent
Selection of land contains impurity element in the non-crystaline amorphous metal, wherein in terms of atomic percentage, the content of the impurity element is not higher than
5%.
A kind of non-crystaline amorphous metal part is additionally provided in the present invention, and the amorphous alloy die casting is by according to the present invention
Method is prepared.This non-crystaline amorphous metal inside parts tissue provided by the present invention more closely, improves the mechanics of part
Performance and service life；And Shape correction can be carried out to the appearance and size of amorphous alloy die casting, improve accessory size
Precision.
The advantageous effect of the application is further described below with reference to specific embodiment and comparative example.
The Zr of diameter of phi 5mm is used in following examples and comparative65Al4Cu25Ni6Bulk amorphous alloys stick be used as at
Proximate matter material (Vickers hardness 450-550Hv, bending strength 2350MPa；Tensile strength 1000MPa；Compression strength 1500MPa.
Non-crystaline amorphous metal part to be formed is flexbile gear green body as shown in Figure 7, such as Fig. 7 in following examples and comparative
It is shown, the flexbile gear green body include bottom wall and with the bottom wall periphery annular sidewall connected vertically, and the annular sidewall is remote
Side from bottom wall is formed with the loop shaped reinforcement of outwardly convex.The internal face of the annular sidewall of the flexbile gear green body has by bottom wall
Outwardly extending to extend out structure, the diameter d1 of the one end that is connected with bottom wall is 10.64cm, the diameter d2 of outwardly extending one end
For 11.38cm；The extending direction of the outside wall surface of the annular sidewall is parallel with the axis direction of the flexbile gear, and diameter d3 is
11.64cm；The Sidewall Height h1 of the flexbile gear green body is 4.23cm, and the bottom wall thickness h2 of the flexbile gear green body is 0.44cm；Institute
The extending direction for stating the outside wall surface of loop shaped reinforcement is parallel with the axis direction of the flexbile gear, and diameter d4 is 12.11cm.
Embodiment
For illustrating amorphous alloy die casting die forging device and non-crystaline amorphous metal part and its former of the present invention and molding
The advantageous effect of method.
(1) preparation of amorphous alloy die casting
Using the amorphous of structure shown in Fig. 1 in the Figure of description of the Chinese invention patent of Publication No. CN102527982A
Alloy die cast equipment, amorphous alloy die-casting technique are as follows：
The closed chamber of the closed bin of amorphous alloy die-casting equipment is purified, so that the closing chamber is indoor harmful
The concentration of gas is less than 1000ppm；Protective gas (helium) is supplied into the closed chamber and keeps the closing chamber indoor
Protective gas remains the positive pressure between 1 atmospheric pressure and 1.1 atmospheric pressure；It will from the feeding port in the closed chamber
Aforementioned bulk amorphous alloys stick, which is sent into be located in the indoor melting vessel of the closing chamber, to be melted, and the amorphous melted closes
Gold, and when by feeding port feeding into the melting vessel the indoor protective gas of closing chamber from the feeding
Mouth overflows；The non-crystaline amorphous metal of the melting is added to from the melting vessel in injection cylinder；It will be described out of described injection cylinder
It is molded in the die cavity that the non-crystaline amorphous metal injection of melting is limited to the fixed half and moving half by the amorphous alloy die-casting equipment；With beat
The fixed half and moving half is opened to take out molding amorphous alloy die casting from the pickup mouth of the non-billon die casting equipment.
The die casting include bottom wall and with the bottom wall periphery annular sidewall connected vertically, and the annular sidewall
Side far from bottom wall is formed with the loop shaped reinforcement of outwardly convex.The internal face of the annular sidewall of the flexbile gear green body has the bottom of by
Wall is outwardly extending to extend out structure, and the diameter d1 of the one end that is connected with bottom wall is 10.44cm, the diameter of outwardly extending one end
D2 is 11.18cm, and the extending direction of the outside wall surface of the annular sidewall is parallel with the axis direction of the flexbile gear, and diameter d3 is
11.66cm；The extending direction of the outside wall surface of the annular sidewall is parallel with the axis direction of the flexbile gear, and diameter d3 is
11.58cm；The Sidewall Height h1 of the flexbile gear green body is 4.13cm, and the bottom wall thickness h2 of the flexbile gear green body is 0.54cm；Institute
The extending direction for stating the outside wall surface of loop shaped reinforcement is parallel with the axis direction of the flexbile gear, and diameter d4 is 12.19cm.
(2) preparation of non-crystaline amorphous metal part
Using the die forging device for being in Fig. 2, the vacuum chamber of the die forging device is vacuumized, and be passed through inert gas
(helium) so that air pressure reaches 1.01-1.05 atmospheric pressure in the vacuum chamber；S22, control heating component are heated, and are added
Heat is to 450 DEG C (the supercooling regions for reaching the amorphous alloy die casting)；S23, in the case where being continually fed into inert gas, will
The cavity that the amorphous alloy die casting of aforementioned preparation is put into limit assembly is (suitable with the amorphous alloy die casting structure of aforementioned preparation
Match, and when the amorphous alloy die casting is mounted in the cavity, the interior sidewall surface of the cavity and the non-crystaline amorphous metal pressure
There are the unilateral gaps of 0.03mm between the outer side surface of casting) in, form structure as shown in Figure 3；S24, by non-crystaline amorphous metal pressure
After casting preheats 6min, pressure head (the internal openings knot with the amorphous alloy die casting of aforementioned preparation in driving molding component
Structure is adapted to, the draft angle of the outer side surface of the pressure head and the interior sidewall surface of corresponding aperture structure in the amorphous alloy die casting
The absolute value of degree is equal, a diameter of 10.64cm of the front end towards limit assembly side of the pressure head, the rear end of the pressure head it is straight
Diameter is 11.38cm) it is moved to and the amorphous alloy die casting initial contact by the first position A far from the limit assembly
Second position B forms structure as shown in Figure 4, is 1.5 × 10 in scheduled molding rate of straining-3S-1Under, by the pressure head
It is moved to irremovable the third place C from the second position B under 400MPa pressure, forms structure as shown in Figure 5；
It drives the pressure head to move back to the first position A by the third place C after S243, pressurize 2min, and drives mandril will be through super modeling
Die forging finishes to obtain the ejection of non-crystaline amorphous metal part, forms structure as shown in FIG. 6；Finishing will be forged through super mold obtains amorphous conjunction
Golden part takes out, and is denoted as non-crystaline amorphous metal part S1.
Comparative example 1
Using application No. is the non-of structure shown in Fig. 1 in the Figure of description of 201110421420.3 Chinese invention patent
Peritectic alloy die casting equipment, amorphous alloy die-casting technique：With embodiment 1, non-crystaline amorphous metal part (die casting) is obtained, D1 is denoted as.
Test：
By non-crystaline amorphous metal part (flexbile gear green body) S1 and D1 and non-crystaline amorphous metal prepared by previous embodiment and comparative example
Die casting is tested for the property, test method and the results are shown in Table 1.
Table 1.
| Test event | S1 | D1 | Test method |
| Vickers hardness (Hv) | 515 | 498 | Plunging |
| Compression strength (Mpa) | 1500 | 1420 | Compression test machine |
| Density (g/cm3) | 6.83 | 6.75 | Density tester |
| Service life (hour) | 11000 | 8500 | Life testing machine |
| Surface defect (bubble, stomata, shrinkage cavity, cinder hole) | Nothing | On a small quantity | X-ray inspection |
If result can be seen that the non-crystaline amorphous metal part D1 formed with respect to die-casting process in table 1, according to the present invention
Substantially without stomata, shrinkage cavity etc. in non-crystaline amorphous metal part S1 prepared by method so that the even closer (optimization of inside parts tissue
Density), improve the mechanical property (hardness and compression strength) and service life of part.In addition, relative to existing super modeling
Property die-forging forming method, increases the scope of application, can be suitable for complex-shaped, larger-size part according to the method for the present invention
Production.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (21)
1. a kind of amorphous alloy die casting die forging device, it is formed with open-celled structure on the amorphous alloy die casting (10), it is special
Sign is that the die forging device includes：Vacuum tank (20), limit assembly (30), molding component (40) and heating component；It is described true
The inside of empty van has vacuum chamber；The limit assembly (30) is fixedly mounted in the vacuum chamber and has thereon for putting
Set the cavity (31) of amorphous alloy die casting (10)；The molding component (40) is moveable relative to the limit assembly (30)
In the vacuum chamber and including with opening on the amorphous alloy die casting (10) that is fixed in the cavity (31)
The matched pressure head of pore structure shape (41)；The heating component setting is in the vacuum tank (20) for controlling the vacuum chamber
In temperature.
2. die forging device according to claim 1, wherein the inside of open-celled structure in the amorphous alloy die casting (10)
There is wall surface (11) draft angle outwardly, the outer side surface (411) of the pressure head (41) to have draft angle inwardly, and the pressure
The outer side surface (411) of head (41) is pulled out with interior sidewall surface (11) of corresponding aperture structure in the amorphous alloy die casting (10)
The absolute value of modular angle degree is equal.
3. die forging device according to claim 1, wherein the shape of the cavity (31) and the amorphous alloy die casting
(10) shape matches, when the amorphous alloy die casting (10) is mounted in the cavity (31), the cavity (31)
There are the unilateral gaps of 0.03-0.05 between interior sidewall surface and the outer side surface of the amorphous alloy die casting (10).
4. die forging device as claimed in any of claims 1 to 3, wherein the heating component includes the first heating
Plate (32) and the second heating plate (42), first heating plate (32) are removably arranged in the limit assembly (30), institute
It states cavity (31) to be formed in first heating plate (32), or the mold with the cavity (31) is mounted on described first
In heating plate (32)；Second heating plate (42) is mounted in the molding component (40), and the pressure head (41) is dismountable
On second heating plate (42).
5. die forging device according to claim 4, wherein first heating plate (32) and second heating plate (42)
In respectively include board body and the heating member (50) that is fixed in the board body.
6. die forging device according to claim 4, wherein the molding component (40) includes limit pressing plate (421), institute
It states limit pressing plate (421) and is fixed on the center of second heating plate (42), the limit pressing plate (421) separate described the
The side of two heating plates (42) forms pressure head face (422), and the pressure head (41) is fixed on the centre bit of the pressure head face (422)
It sets；Further include the limiting groove in the centre for being formed in first heating plate (32) in the limit assembly (30), it is described
Die joint (321) is formed on the bottom of limiting groove, and the cavity (31) is formed in the center of die joint (321)；The limit
Position pressing plate (421) and the limiting groove structure matching, and when the pressure head face (422) and the die joint (321) are affixed,
The limit assembly (30) and molding component (40) form mould-matching structure.
7. die forging device according to claim 6, wherein the molding component (40) includes being fixed on described second to add
Multiple spacing block sets (423) on hot plate (42), multiple spacing block sets (423) are symmetrically arranged the two of the pressure head (41)
Side, and preferably the height of each spacing block set (423) is identical as the height of limit pressing plate (421)；The limit assembly
(30) further include being formed on first pressing plate (32) in, opened with the one-to-one multiple limits of the spacing block set (423)
Hole, the spacing block set (423) and limit open-celled structure matching.
8. die forging device according to claim 4, wherein the limit assembly (30) includes the first thermal insulation board (33),
First heating plate (32) is mounted on first thermal insulation board (33)；The molding component (40) includes the second thermal insulation board
(43), second heating plate (42) is mounted on second thermal insulation board (43).
9. die forging device according to claim 8, wherein the limit assembly (30) includes the first die holder (34), institute
The first thermal insulation board (33) is stated on first die holder (34)；The molding component (40) includes the second die holder (44),
Second thermal insulation board (43) is mounted on second die holder (44).
10. die forging device according to claim 9, wherein be equipped with towards described first on second die holder (44)
The guide post (60) that die holder (34) extends；It is formed on first die holder (43) and the guide post (60) size is matched leads
To through-hole, first die holder (43) is connected by the guide through hole and the guide post.
11. die forging device according to claim 9, wherein the molding component (40) includes compression bar (45), the pressure
Bar (45) one end extends to the outside of the vacuum tank (20), and the other end is connected with second die holder (44) to drive the mould
Press component (40) mobile relative to the limit assembly (30).
12. die forging device according to claim 9, wherein the limit assembly (30) includes relative to the cavity
(31) moveable mandril (35), one end of the mandril (35) extend to the outside of the vacuum tank (20), and the other end passes through
First die holder (34), the first thermal insulation board (33) and the first heating plate (32) form at least partly bottom wall of the cavity (31)
Face, or the support mold with the cavity (31).
13. die forging device according to claim 1, wherein the vacuum tank (20) includes babinet (21) and pedestal (22),
The limit assembly (40) is fixed on the pedestal (22)；The babinet (21) includes being oppositely arranged with the pedestal (22)
Top plate, the molding component (30) are moveably mounted on the top plate.
14. a kind of non-crystaline amorphous metal forming parts equipment, which is characterized in that the non-crystaline amorphous metal forming parts equipment includes for making
The die cast device of standby amorphous alloy die casting and the right that super mold forging finishing is carried out to the amorphous alloy die casting
It is required that the amorphous alloy die casting die forging device described in any one of 1 to 13.
15. a kind of non-crystaline amorphous metal method for forming parts, which is characterized in that the described method comprises the following steps：
S1, amorphous alloy die casting is provided；
S2, the amorphous alloy die casting die forging by the amorphous alloy die casting described in any one of claim 1 to 13
Super mold forging finishing is carried out in device.
16. according to the method for claim 15, wherein the S2 includes：
S21, the vacuum chamber of the die forging device is vacuumized, and is passed through inert gas so that air pressure reaches in the vacuum chamber
Preset air pressure, the preset air pressure are more than atmospheric pressure, and the preferably described preset air pressure is 1.01-1.05 atmospheric pressure；
S22, control heating component are heated, and make what temperature in the vacuum chamber reached the amorphous alloy die casting to cross cold-zone
Domain；
S23, the amorphous alloy die casting is put into the cavity of limit assembly；
S24, driving molding component in movable press head, to be placed on the amorphous alloy die casting in the cavity of the limit assembly into
The super mold forging finishing of row.
17. according to the method for claim 16, wherein in the S23 in the case where being continually fed into inert gas, by institute
Amorphous alloy die casting is stated to be put into the cavity of the limit assembly.
18. according to the method for claim 16, wherein the amorphous alloy die casting is being put into institute in the S24
After stating in the cavity of die forging device, wait for that the amorphous alloy die casting is preheated to temperature and reaches supercooling region rear-guard dynamic model pressure component
Middle movable press head, preferably preheating time are 6-8min.
19. according to the method for claim 16, wherein the S24 includes：
S241, the driving pressure head are moved to and the amorphous alloy die-casting by the first position (A) far from the limit assembly
The second position (B) of part initial contact；
S242, under scheduled molding rate of straining, the pressure head is moved to limit with predetermined pressure by the second position (B)
Hyte part is in the third place (C) of molding state with molding component；
S243, after the pressurize processing predetermined time, the pressure head is driven to move back to the first position (A) by the third place (C).
20. according to the method for claim 19, wherein the scheduled molding rate of straining is 1 × 10-2~5 × 10-4S-1；The predetermined pressure is 400-500MPa；The predetermined time is 1-5min.
21. a kind of non-crystaline amorphous metal part, which is characterized in that the amorphous alloy die casting is by any one in claim 15-20
Method described in is prepared.
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| CN201710089590.3A CN108453203B (en) | 2017-02-20 | 2017-02-20 | Die forging device for amorphous alloy die casting, amorphous alloy part, forming equipment and forming method thereof |
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Cited By (2)
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| CN111906271A (en) * | 2020-07-08 | 2020-11-10 | 松山湖材料实验室 | Vacuum die-casting die for amorphous alloy flexible gear of harmonic reducer and method thereof |
| WO2022042467A1 (en) * | 2020-08-31 | 2022-03-03 | 深圳大学 | Preparation method for amorphous micro-nano structure, and hot-press forming device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170590B (en) * | 2020-08-28 | 2023-02-03 | 深圳大学 | Die forming equipment |
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| CN108453203B (en) | 2020-06-19 |
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