WO2005068110A1 - 射出鋳造装置 - Google Patents
射出鋳造装置 Download PDFInfo
- Publication number
- WO2005068110A1 WO2005068110A1 PCT/JP2005/000377 JP2005000377W WO2005068110A1 WO 2005068110 A1 WO2005068110 A1 WO 2005068110A1 JP 2005000377 W JP2005000377 W JP 2005000377W WO 2005068110 A1 WO2005068110 A1 WO 2005068110A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plunger
- sleeve
- raw material
- mold
- injection
- Prior art date
Links
- 238000001746 injection moulding Methods 0.000 title abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 87
- 229910052751 metal Inorganic materials 0.000 claims abstract description 51
- 239000002184 metal Substances 0.000 claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims description 44
- 239000007924 injection Substances 0.000 claims description 44
- 238000005242 forging Methods 0.000 claims description 33
- 239000003507 refrigerant Substances 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 239000002826 coolant Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- 229910052772 Samarium Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910020630 Co Ni Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 229910052689 Holmium Inorganic materials 0.000 description 2
- 229910001122 Mischmetal Inorganic materials 0.000 description 2
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 102220580955 Voltage-dependent T-type calcium channel subunit alpha-1H_S30K_mutation Human genes 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052789 astatine Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- FFGPTBGBLSHEPO-UHFFFAOYSA-N carbamazepine Chemical group C1=CC2=CC=CC=C2N(C(=O)N)C2=CC=CC=C21 FFGPTBGBLSHEPO-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- 230000003028 elevating effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- 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
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion
-
- 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
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
- B22D17/04—Plunger machines
-
- 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
-
- 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
-
- 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
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/203—Injection pistons
-
- 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
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
-
- 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
- B22D17/28—Melting pots
-
- 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
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
Definitions
- the present invention relates to an injection molding apparatus, and more particularly, suitable for vacuum injection molding for forming an active metal such as a high melting point metal, particularly an amorphous alloy, and at high speed while keeping the molten active metal clean.
- the present invention relates to an apparatus capable of injection molding.
- the reason is that cooling is performed by a vacuum injection forging machine.
- the reason is that it is a die casting of a cold chamber method, and it is a method that melts the raw material lump in a batch manner in the raw material container at the upper part of the sleeve. This is thought to be because it is necessary to prevent the temperature of the melting metal from being lowered because there are few raw materials to be processed.
- the conventional vacuum injection forging machine does not cool the plunger sleeve, the molten metal flows into the small gap between the sleeve inner surface and the plunger (piston) side surface during injection. , Likely to solidify. As a result, the frictional resistance increases, and in the worst case, the plunger stops moving in the sleeve and cannot be injected.
- the present invention has been made in view of the prior art as described above, and its basic purpose is to heat and melt the metal even in the injection fabrication of a refractory metal having a melting point of about 1200 ° C or higher.
- the object of the present invention is to continuously inject an active metal even if it is an active metal such as an amorphous alloy, without releasing the vacuum state of the space of the heating and melting portion with a single charge of the raw material.
- the object is to provide an apparatus that can perform molding and mass-produce high-quality injection-molded products at low cost.
- a mold a sleeve arranged so as to be able to move forward and backward toward the gate of the mold, and a slide in the sleeve
- An injection forging apparatus comprising: a freely arranged plunger; and a heating means for heating and melting a raw material lump supplied to a raw material container formed by the sleeve inner wall and the plunger.
- an injection forging apparatus is provided in which the sleeve is provided with cooling means.
- an injection forging apparatus comprising: heating means for heating and melting the raw material lump supplied to the raw material storage unit; and raw material lump supply means for supplying the raw material lump upward force to the raw material storage unit, wherein the plunger and An injection forging apparatus is provided in which the Z or the sleeve is provided with a cooling means.
- the raw material lump supply means includes a storage device in which a plurality of raw material ingots are arranged, a means for transferring the raw material lump arranged in the storage device, and a raw material transferred above the storage device. And means for transporting the mass above the sleeve.
- an inner space extending in the axial direction is formed in the plunger, and in the inner space, the refrigerant supply pipe is surrounded, that is, the tip near the plunger head and the periphery of the tube wall.
- the refrigerant is arranged so as to leave a space, and the refrigerant supplied through the refrigerant supply pipe is configured to flow through the inner space of the plunger at the tip portion force.
- a cooling jacket having a bellows-like channel formed in the peripheral wall is disposed on the outer peripheral surface of the sleeve.
- the cooling jacket is divided.
- the plunger and the sleeve are used for different materials.
- Configuring the plunger and sleeve to have different coefficients of thermal expansion is effective in preventing the formation of gaps.
- the plunger also constitutes a metal or alloy force having a melting point of 800 ° C. or higher, such as Fe, Ni, Co, Mo, W, Ta, Nb, or a part or all of the plunger also constitutes a ceramic force.
- the sleeve constitutes a ceramic force, for example.
- a mold As described above, a mold, a sleeve that is arranged to move forward and backward toward the gate of the mold, a plunger that is slidably disposed in the sleeve, the inner wall of the sleeve, and a plunger
- the plunger and the Z or the sleeve are provided with a cooling means. It becomes difficult for the molten metal to flow into the gap between the plunger and the sleeve.
- an inner space extending in the axial direction is formed in the plunger, and the refrigerant supply pipe is surrounded by the inner space, that is, the tip and the pipe wall in the vicinity of the plunger head portion. It is arranged so as to leave a space around it, and the refrigerant supplied through the refrigerant supply pipe is configured to flow from the tip of the refrigerant through the inner wall of the plunger through the peripheral wall.
- the refrigerant fluid is supplied in a state where the influence of heating is small, and the upper part of the plunger can be efficiently cooled.
- it is effective to prevent the formation of gaps by using different materials for the plunger and sleeve and having different thermal expansion coefficients. As a result, since the sliding motion within the sleeve of the plunger can be performed smoothly, injection can be performed without problems of the sliding motion of the plunger, and a high-quality forged product can be manufactured stably.
- FIG. 1 is a schematic partial cross-sectional front view of one embodiment of a vacuum injection forging apparatus of the present invention.
- FIG. 2 is a schematic cross-sectional view of an embodiment of a plunger used in the vacuum injection forging apparatus of the present invention.
- FIG. 3 is a schematic partial cross-sectional side view of an embodiment of a sleeve and a cooling jacket used in the vacuum injection forging apparatus of the present invention.
- FIG. 4 is a plan view of the sleeve and the cooling jacket shown in FIG. 3.
- FIG. 5 is a cross-sectional view of the sleeve and cooling jacket shown in FIG. 3 taken along the line V-V.
- FIG. 6 is a partial perspective view showing a raw material lump supply mechanism used in the vacuum injection forging apparatus of the present invention.
- FIG. 7 is a partial cross-sectional side view showing the raw material lump supply mechanism shown in FIG. 6.
- FIG. 8 is a partial plan view showing the raw material lump supply mechanism shown in FIG. 6.
- FIG. 9 is a schematic partial cross-sectional front view of an embodiment of the vacuum injection forging apparatus of the present invention, showing a molded product discharging step.
- FIG. 10 is a schematic partial sectional view of another embodiment of the plunger used in the vacuum injection forging apparatus of the present invention. Explanation of symbols
- the injection forging apparatus of the present invention is characterized in that a mold, a sleeve arranged to move forward and backward toward the gate of the mold, and a slidable arrangement in the sleeve. And a cooling means for the plunger and Z or the sleeve.
- the injection forging apparatus comprises a plunger and a heating means for heating and melting the raw material lump supplied to the raw material container formed by the sleeve inner wall and the plunger.
- the upper portion of the plunger is cooled as described above, and the molten metal melted by heating is rapidly cooled in a state where the molten metal flows slightly into the gap between the plunger and the sleeve.
- the molten metal can be prevented from flowing further, and excessive cooling to the molten metal can be prevented.
- the metal lump can be heated and melted without much influence, and the plunger and sleeve can be heated.
- an inner space extending in the axial direction is formed in the plunger, and the refrigerant supply pipe is surrounded by the inner space, that is, the tip near the plunger head portion. And leave a space around the pipe wall and through the refrigerant supply pipe. It is effective that the refrigerant supplied in this way flows through the peripheral wall of the inner space of the plunger at the tip portion force.
- the refrigerant fluid is supplied in a state where the influence of heating at the upper portion is small, and the upper portion of the plunger can be efficiently cooled.
- a cooling jacket having a bellows-like flow path formed in the peripheral wall preferably a cooling jacket divided for easy mounting
- a cooling jacket divided for easy mounting is provided on the outer peripheral surface of the sleeve.
- it is more effective for efficient cooling of the top of the plunger.
- different materials for the plunger and sleeve and making them have different thermal expansion coefficients, it is effective in preventing the formation of gaps and reducing the amount of molten metal flowing into the gap between the plunger and sleeve. is there.
- the use of dissimilar materials reduces heat escape and is effective in suppressing the temperature rise of the plunger.
- a raw material for supplying a raw material lump from above to a raw material container formed by the sleeve inner wall and the plunger A lump supply means is provided.
- the raw material lump can be efficiently supplied in a short time, and the stroke of the plunger can be minimized to prevent malfunction caused by the gap between the plunger and the sleeve.
- the raw material lump heated by the heating source can be efficiently supplied into the mold cavity.
- the raw material lump supply means includes a storage device in which a plurality of raw material blocks are arranged, a means for transferring the raw material lump arranged in the storage device, and a raw material lump transferred above the storage device. It is a means and a force to transfer the sleeve upward. As a result, the apparatus can be made compact, and the material can be transferred and supplied efficiently.
- the injection forging apparatus of the present invention is not limited to an active metal such as an amorphous alloy, and can be applied to all injection forging of high melting point metal having a melting point of about 1200 ° C. or higher. However, it can be particularly suitably applied to injection fabrication of active metals such as amorphous alloys that require a vacuum chamber.
- active metals such as amorphous alloys that require a vacuum chamber.
- reference numeral 1 denotes a mold, which includes a fixed lower mold 2 and a movable upper mold 3.
- the lower mold 2 having the gate 4 is fixed to a main surface plate 7 having a circular opening 6 at a corresponding position, and a seal member (not shown) such as an O-ring is sealed between them.
- a plurality of tabs 9 are erected in parallel on the main surface plate 7, and a fixed plate 10 is fixed to the upper end thereof.
- the number of tie bars 9 is four in this embodiment. Of course, the number of tie bars 9 is not limited to this, and may be three or two or more than four.
- the movable platen 11 mounted on the tie bar 9 is moved up and down by a mold clamping cylinder 12 mounted on the fixed platen 10.
- a movable upper mold having a cavity 5 formed on a parting surface with a fixed lower mold 2 via a fixed member 13 and a connecting member 14 (which may be integrated with the fixed member 13) below the movable platen 11. 3 is fixed, and the movable upper mold 3 moves up and down as the movable platen 11 moves up and down.
- a mold exhaust hole 15 is formed at a predetermined position of the movable plate 11 and the fixed member 13, and each of the movable plate 11, the fixed member 13, the connecting member 14, the movable upper die 3 and the fixed lower die 2 is provided. Each is sealed with a seal member (not shown).
- a plurality of ejector pins 16 are inserted into the mold 1 so as to protrude into the cavity 5 (in the example shown, three or more ejector pins 16 may be used depending on the number of force cavities as a pair).
- the connecting rods 17 of the ejector pins 16 are inserted into the movable platen 11 and the fixed member 13, and the lower end surfaces of the ejector pins 16 are formed by mold cavities 5 by upward biasing means and stubbing means (not shown). It is comprised so that it may correspond with the upper surface of.
- a cylindrical vacuum housing that hangs so as to surround the movable upper mold 3 is provided.
- a winging 20 is fixed via a seal member (not shown), while a sealing frame 21 is similarly fixed to the upper surface of the main surface plate 7 at a corresponding position via a seal member.
- the outer surface of the vacuum housing 20 is attached to the inner surface of the sealing frame 21 with a sealing member (not shown). It is configured to be able to form a sealed injection molding space X by sliding contact therewith.
- a molded product discharge cylinder 22 having an arm portion 23 that can approach and retreat to the injection molding portion at a predetermined height is attached to a predetermined position on the main surface plate 7 (for convenience of illustration). Above, only shown in Figure 9.)
- a vacuum chamber 24 for hermetically forming the heating / dissolving space Y is disposed below the main surface plate 7 and supported by a frame (not shown). Blocking and communication between the injection molding part space X and the heating and melting part space Y in the vacuum chamber 24 are brought into sliding contact with the lower surface of the main platen 7 by a shirt tacilinder 25 (shown only in FIG. 9 for convenience of illustration). This is done by closing and opening the opening 6 with a shield shunt 26 actuated to move forward and backward.
- the shielding shirt can be a swivel type.
- One line L1 (mold exhaust line) of the vacuum pumping system of the vacuum pump is connected to a mold exhaust hole 15 formed in the movable platen 11 and the fixed member 13.
- the other part L2 is connected to the vacuum chamber 24 and exhausts until the inside of the heating and melting part space Y reaches a predetermined vacuum level. It is configured as follows.
- a mold air valve and a vacuum reserve tank (not shown) for releasing the vacuum state of the injection molding part space X are connected to the mold exhaust line L1, and the movable upper mold 3 is connected to the fixed lower mold 2.
- the injection molding space X can be immediately evacuated after clamping.
- an inert gas container can be connected to the vacuum chamber 24, and depending on the type of raw material used, it can be heated and dissolved in an inert gas atmosphere such as Ar.
- a cylindrical sleeve 27 and a periphery thereof are attached so as to surround the position 2 aligned with the gate 4 of the fixed lower mold 2 and the opening 6 of the main surface plate 7.
- a cooling jacket 28 of a divided type is provided, and the lower ends of the sleeve 27 and the cooling jacket 28 are fixed to the lifting plate 31 via the holding member 30, and the lifting plate 31 is a sleeve.
- the sleeve 27 and the cooling jacket 28 are moved up and down as a whole by being operated by the moving cylinder 32 and guided by the guide bar 36. Therefore, the sleeve 27 and the cooling jacket 28 are raised toward the gate 4 of the mold 1 and lowered to the initial position by operating the sleeve moving cylinder 32 to raise and lower the elevating plate 31.
- a sleeve 33 and a cooling jacket 28 are provided with a slidable plunger 33, and the plunger 33 is operated by an injection cylinder 35 mounted via a lift plate 34.
- the guide bar 36 guides the sleeve 27 and the cooling jacket 28 so as to slide up and down.
- a high frequency induction heating coil 37 is disposed as a heating means.
- the heating means is not limited to high-frequency induction heating, and other known heating methods such as resistance heating can be adopted.
- the plunger 33 is fixed to a cap-shaped head portion 38, a hollow body portion 39 screwed to the head portion 38, and a lower end portion of the body portion 39.
- the refrigerant supply pipe 43 has a lower end attached to the upper base 41 so as to extend in the axial direction into the space.
- the refrigerant supply pipe 43 is disposed so as to leave a space around it, that is, the tip near the plunger head and around the tube wall, and the space is a flow path formed in the upper base 41.
- the lower end of the refrigerant supply pipe 43 is configured to communicate with a flow path 45 formed in the lower base 42. Therefore, the coolant fluid such as water and oil supplied from the flow path 45 formed in the lower base 42 through the coolant supply pipe travels through the peripheral wall in the inner space of the plunger at the tip portion force of the coolant supply pipe 43. And is discharged from a flow path 44 formed in the upper base 41.
- two (any number) piston rings 46 are attached to the upper outer peripheral surface of the head portion 38 so that the surface is flush with the outer peripheral surface.
- the upper end portion of the head portion 38 is about 800-900 ° C and near the tip end portion of the refrigerant supply pipe 43. In the vicinity, it is about 500-600 ° C.
- the material of the head portion 38 that is exposed to high temperature is preferably ceramic.
- a two-part cooling jacket 28 is attached so as to surround it.
- Refrigerant channels 29a and 29b are independently formed in a bellows shape on the side walls of the jacket portions 28a and 28b, respectively, and a refrigerant pipe 29 is attached to each of the refrigerant channels 29a and 29b (FIG. 6). See also).
- a raw material lump supply device 47 is attached to the side of the sleeve 27.
- the raw material lump supply device 47 includes a plurality of turntables 48 and a plurality of raw material lump supply devices 47 installed on the turntable 48 so as to be aligned with the height positions of the sleeves 27.
- a vertical tube-shaped raw material storage cylinder 49 (which may be four or four forces in the illustrated example) and a raw material lump A arranged in the raw material storage cylinder 49
- a lift pin 51 functioning as a means for transferring the raw material upward, and an arm 50 as a means for transferring the raw material block A transferred above the raw material storage cylinder 49 upward of the sleeve.
- the turntable 48 and the raw material storage cylinder 49 installed thereon are configured as a cassette storage device, and after all the raw material blocks arranged in each raw material storage cylinder 49 are used, Overall, it can be replaced with a new cassette storage device.
- the raw material storage cylinder 49 of the turntable 48 is formed with a hole 53 at the installation position, and the lift pins 51 inserted into the hole 53 are operated inside the raw material storage cylinder 49 by the operation of the cylinder 52.
- the raw material lump A stored in the container is sequentially transferred upward in stages.
- the arm 50 grips the raw material lump A protruding from the raw material storage cylinder 49 and moves forward by the operation of the cylinder 54 to move the sleeve 27 from above the sleeve 27.
- Raw material lump A is put inside.
- the cylinder 52 is actuated again to transfer the raw material block A stored in the raw material storage cylinder 49 upward by one stage.
- the cylinder 52 is actuated so that it can be lifted and removed from the hole 53.
- Lower pin 51 Thereafter, the turntable 48 is positioned so that the hole 53 of the next raw material storage cylinder 49 is positioned on the lifting pin 51 by rotation of a stepping motor (not shown). Rotate by a fixed angle. In this way, the raw material lump A force sleeve 27 accommodated in the raw material storage cylinder 49 is sequentially supplied.
- the molten metal in the sleeve 27 reaches a predetermined temperature (appropriate methods such as installing a thermocouple in the plunger 33 or installing a radiation thermometer in the fixed lower mold) can be adopted.
- the high frequency induction heating coil 37 is demagnetized, the shirt cylinder 25 is activated, the shield shirt 26 is opened, and the injection molding space X and the heating and melting space Y are in communication.
- the sleeve moving cylinder 32 and the injection cylinder 35 operate synchronously, the sleeve 27 and the plunger 33 are raised, and the upper end of the sleeve 27 is closely attached to the periphery of the gate 1 of the mold 1 as well as a predetermined distance.
- the molten metal pressurized by the plunger 33 that rises only is injected and filled into the mold cavity 5, and the mold 1 is deprived of heat and rapidly solidified.
- the mold 1 is exhausted through the mold exhaust hole 15 of the movable plate 11 from the ejector portion at the end of the melt flow, so that the melt flow rides on the exhaust flow and enters the mold cavity 5. Since it is filled in, bubbles are unlikely to be involved.
- FIG. 10 shows a modified example of the plunger.
- This plunger 33a differs from the previous embodiment in that a collect chuck 55 is interposed between a cap-shaped upper head portion 38a and a hollow lower head portion 38b.
- the collect chuck 55 is configured such that when the upper head portion 38a is pushed in, the collect chuck 55 is tightened between the upper head portion 38a and the lower head portion 38b.
- a metal plate 56 is inserted between the upper head portion 38a and the collect chuck 55 so that the upper head portion 38a does not come into contact with a refrigerant fluid such as water.
- two (any number) piston rings 46 are attached to the outer peripheral surface of the upper end portion of the lower head portion 38b so that the surface is flush with the outer peripheral surface.
- a hollow body portion 39 is screwed to the lower head portion 38b, a hollow pipe portion 40 is fixed to the lower end portion of the body portion 39, and extends in the axial direction into the internal space of the body portion 39 and the hollow pipe portion 40.
- the coolant supply pipe 43 is provided, and the coolant fluid such as water and oil supplied through the coolant supply pipe also passes through the peripheral wall of the inner space of the plunger with the force of the tip of the coolant supply pipe 43.
- Flowing and discharging are the same as in the above-described embodiment, and the material of the upper head portion 38a exposed to high temperature is preferably ceramic.
- attaching the upper head portion of the plunger screwing, brazing, and the like can be considered.
- the apparatus of the present invention includes at least one active metal that is easily oxidized or thermally deteriorated, such as Al, Mg, Fe, Ti, Zr, Hf, Y, La, Ce, Nd, Sm, and Mm (Misch metal).
- active metals having a high melting point can be suitably used for injection molding of an alloy having an active metal element of 50% by weight or more. Can be used for injection molding.
- the apparatus of the present invention is particularly suitable for injection molding of an amorphous alloy having a composition represented by any one of the following general formulas (1) and (6).
- M 1 is one or two elements selected from Zr and Hf
- M 2 is selected from the group consisting of Ni, Cu, Fe, Co, Mn, Nb, Ti, V, Cr, Zn, Al and Ga.
- M 3 is at least one element selected from the group force consisting of Be, B, C, N and O
- M 4 is at least one element selected from the group force consisting of Ta, W and Mo
- M 5 is Group force consisting of Au, Pt, Pd and Ag
- At least one element selected, a, b, c, d, e and f are atomic%, 25 ⁇ a ⁇ 85, 1 5 ⁇ b ⁇ 75, 0 ⁇ c ⁇ 30, 0 ⁇ d ⁇ 30, 0 ⁇ e ⁇ 15, 0 ⁇ f ⁇ 15.
- Ln is Y, La, Ce, Nd, Sm, Gd, Tb, Dy, Ho, at least one element group force consisting Yb and Mm are also selected
- M 6 is Ti, V, Cr, Mn, Fe, At least one element selected from the group consisting of Co, Ni, Cu, Zr, Nb, Mo, Hf, Ta and W
- M 3 is at least one selected from the group force consisting of Be, B, C, N and O
- the elements g, h, and i are atomic%, 30 ⁇ g ⁇ 90, 0 ⁇ h ⁇ 55, 0 ⁇ i ⁇ 10.
- M 7 is at least one element selected from the group consisting of Cu, Ni, Sn and Zn, and p is 5 ⁇ p ⁇ 60 in atomic%.
- This amorphous alloy has a good mixing ability and a large amorphous forming ability.
- M 7 is at least one element selected from the group consisting of Cu, Ni, Sn and Zn, and M 8 Is Al, at least one element selected the group force consisting of Si and Ca, in each q and r Nuclear 0/0, l ⁇ q ⁇ 35, is L ⁇ r ⁇ 25.
- M 7 is at least one element selected from the group consisting of Cu, Ni, Sn and Zn
- M 8 is at least one element selected from the group consisting of Al, Si and Ca
- M 9 is Y, La , Ce, Nd, at least one element selected the group Ca ⁇ et consisting Sm and Mm, q, in each of r and s nuclear 0/0, l ⁇ q ⁇ 35, l ⁇ r ⁇ 25, 3 ⁇ s ⁇ 25.
- the amorphous thermal stability is improved by adding rare earth elements to the alloys of the general formulas (3) and (4).
- the amorphous bulk material can be obtained by a forging method with a cooling rate of several lOKZs.
- These Zr-TM-A1 and Hf-TM-A1 amorphous alloys used in the present invention have a very large range of ⁇ , which varies depending on the alloy composition and measurement method. .
- the ⁇ of Zr Al Co Ni Cu alloy (Tg: 652K, Tx: 768K) is extremely 116K.
- Wide Hardness ranges from room temperature to around Tg with a Vickers hardness (Hv) of 460 (DPN), a tensile strength of 1,600 MPa, and a bending strength of 3, OOOMPa.
- the flow stress decreases to about lOMPa when heated to the glass transition region while exhibiting very high strength characteristics.
- this alloy is extremely easy to process and can be formed into low-stress, complex-shaped microparts and high-precision parts. Both the strength and the characteristic force of so-called glass (amorphous) are processed (deformation).
- the surface does not have a step where a slip band appears on the surface like when a crystal alloy with extremely high smoothness is deformed. Has characteristics.
- an amorphous alloy has the ability to start crystallization by holding for a long time when heated to the glass transition region.
- An alloy with a wide ⁇ like this alloy has a stable amorphous phase, and the temperature within ⁇ If properly selected, crystals do not form for up to 2 hours, so there is no need to worry about crystallization in normal molding.
- the amorphous alloy has high precision forgeability and workability, and has excellent transferability that can faithfully reproduce the mold shape of the mold, so by appropriately producing the mold, Mold molding that satisfies the specified shape, dimensional accuracy, and surface quality can be manufactured with high productivity by a single process.
- amorphous alloy molded product As a material used for manufacturing an amorphous alloy molded product to which the present invention is applied, in addition to the amorphous alloys as described above, amorphous alloys described in JP-A-10-186176, JP-A-10-311923, JP-A-11-104281, JP-A-11-189855, etc. Various conventionally known amorphous alloys can be used. The teaching contents of the above patent documents are incorporated herein by reference.
- the injection forging apparatus of the present invention is suitable for manufacturing various molded products of various metals, particularly active metals such as amorphous alloys.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005000190T DE112005000190B4 (de) | 2004-01-15 | 2005-01-14 | Spritzgußvorrichtung |
US11/487,052 US20060254747A1 (en) | 2004-01-15 | 2006-07-14 | Injection molding apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-008079 | 2004-01-15 | ||
JP2004008079A JP4339135B2 (ja) | 2004-01-15 | 2004-01-15 | 非晶質合金成形用の射出鋳造装置 |
Related Child Applications (1)
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US11/487,052 Continuation US20060254747A1 (en) | 2004-01-15 | 2006-07-14 | Injection molding apparatus |
Publications (1)
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WO2005068110A1 true WO2005068110A1 (ja) | 2005-07-28 |
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PCT/JP2005/000377 WO2005068110A1 (ja) | 2004-01-15 | 2005-01-14 | 射出鋳造装置 |
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US (1) | US20060254747A1 (ja) |
JP (1) | JP4339135B2 (ja) |
KR (1) | KR20070001094A (ja) |
CN (1) | CN100528408C (ja) |
DE (1) | DE112005000190B4 (ja) |
WO (1) | WO2005068110A1 (ja) |
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- 2005-01-14 KR KR1020067013914A patent/KR20070001094A/ko not_active Ceased
- 2005-01-14 WO PCT/JP2005/000377 patent/WO2005068110A1/ja active Application Filing
- 2005-01-14 CN CNB2005800021844A patent/CN100528408C/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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US20060254747A1 (en) | 2006-11-16 |
JP2005199309A (ja) | 2005-07-28 |
CN100528408C (zh) | 2009-08-19 |
DE112005000190T5 (de) | 2006-11-23 |
KR20070001094A (ko) | 2007-01-03 |
DE112005000190B4 (de) | 2010-04-08 |
CN1909996A (zh) | 2007-02-07 |
JP4339135B2 (ja) | 2009-10-07 |
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