US20060254747A1 - Injection molding apparatus - Google Patents

Injection molding apparatus Download PDF

Info

Publication number
US20060254747A1
US20060254747A1 US11/487,052 US48705206A US2006254747A1 US 20060254747 A1 US20060254747 A1 US 20060254747A1 US 48705206 A US48705206 A US 48705206A US 2006254747 A1 US2006254747 A1 US 2006254747A1
Authority
US
United States
Prior art keywords
plunger
sleeve
raw material
set forth
apparatus set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/487,052
Other languages
English (en)
Inventor
Mamoru Ishida
Makoto Kawanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
Original Assignee
YKK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YKK Corp filed Critical YKK Corp
Assigned to YKK CORPORATION reassignment YKK CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ISHIDA, MAMORU, KAWANISHI, MAKOTO
Publication of US20060254747A1 publication Critical patent/US20060254747A1/en
Abandoned legal-status Critical Current

Links

Images

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

  • This invention relates to an injection molding apparatus, and more particularly to an apparatus which is suitable for the vacuum injection molding of a high-melting point metal, particularly an active metal such as an amorphous alloy, and capable of carrying out the high-speed injection molding of a melt of the active metal while maintaining a clean state thereof.
  • a high-melting point metal particularly an active metal such as an amorphous alloy
  • a molding method which uses a sleeve movable toward a mold and is carried out by supplying a raw material lump into a raw material accommodating part formed by an inside wall of a sleeve and the upper end face of a plunger slidably disposed therein, heating and melting the active metal under vacuum, and injecting and filling it in a cavity of the mold has been proposed (see Japanese Patent No. 2977374, JP 10-296424 A, and JP 2001-246451 A).
  • the reason why cooling is not performed in the vacuum injection molding machine is considered as follows. That is, since it is die casting of a cold chamber system and employs the system which melts a raw material lump by batch processing in the raw material accommodating part of the upper part of the sleeve, the material to be used is small and, therefore, it is necessary to not lower the temperature of the melting metal.
  • the present invention has been made in view of the prior art described above and its fundamental object is to provide an apparatus capable of producing a high-quality molded article, in which a melt of a metal which has been heated and melted hardly flows into a gap between a plunger and a sleeve, the sliding movement of the plunger can be smoothly performed in the sleeve, and consequently the injection can be performed stably, even in the injection molding of a high-melting point metal having a melting point of about 1200° C. or more.
  • a further object of the present invention is to provide an apparatus which, even in the case of an active metal such as an amorphous alloy, can perform injection molding of the active metal continuously with one raw material loading, without releasing the vacuum state in the space of a heating-melting section, and can carry out mass production of the injection-molded article of high quality at a low cost.
  • an injection molding apparatus comprising a mold, a sleeve disposed so as to be movable forward and backward toward a pouring gate of the mold, a plunger slidably disposed in the sleeve, and a heating means for heating and melting a raw material lump supplied into a raw material accommodating part formed by an inside wall of the sleeve and the plunger mentioned above, characterized in that the plunger and/or the sleeve mentioned above is equipped with a cooling means.
  • an injection molding apparatus comprising a mold, a sleeve disposed beneath the mold so as to be movable forward and backward toward a pouring gate of the mold, a plunger slidably disposed in the sleeve, a heating means for heating and melting a raw material lump supplied into a raw material accommodating part formed by an inside wall of the sleeve and the plunger mentioned above, and a raw material lump supplying means for supplying the raw material lump to the above-mentioned raw material accommodating part from above, characterized in that the plunger and/or the sleeve mentioned above is provided with a cooling means.
  • the raw material lump supplying means mentioned above comprises an accommodating device containing a plurality of raw material lumps, a means for transferring the raw material lump disposed in the accommodating device to an upper position above the device, and a means for transferring the raw material lump transferred onto the upper position of the accommodating device to a position above the sleeve.
  • the above-mentioned plunger has an internal space formed therein and extending along its axial direction and a cooling medium supply pipe disposed in the internal space so as to leave a space portion around its circumference, i.e. its leading end portion in the vicinity of a plunger head part and the circumference of a pipe wall, so that a cooling medium supplied through the above-mentioned cooling medium supply pipe may flow through the internal space of the above-mentioned plunger from its leading end.
  • the above-mentioned sleeve is provided at its outer peripheral surface with a cooling jacket having a flow path formed in the shape of bellows in the circumferential wall.
  • the cooling jacket is divided.
  • different materials are used for the plunger and the sleeve.
  • the plunger and the sleeve are constituted so as to have different thermal expansion coefficients, it is effective in preventing formation of a gap therebetween.
  • the above-mentioned plunger is formed from a metal or alloy having a melting point of not less than 800° C., such as Fe, Ni, Co, Mo, W, Ta, and Nb, or part or all of the above-mentioned plunger is formed from ceramic.
  • the above-mentioned sleeve is formed from ceramic.
  • a piston ring in the outer peripheral surface of the head part of the above-mentioned plunger or to form the above-mentioned plunger so as to have a main body part and a separate head part.
  • the injection molding apparatus of the present invention comprising a mold, a sleeve disposed so as to be movable forward and backward toward a pouring gate of the mold, a plunger slidably disposed in the sleeve, and a heating means for heating and melting a raw material lump supplied into a raw material accommodating part formed by an inside wall of the sleeve and the plunger mentioned above, since the plunger and/or sleeve mentioned above is equipped with a cooling means, a melt of a metal which has been heated and melted hardly flows into a gap between the plunger and the sleeve.
  • the plunger has an internal space formed therein and extending along its axial direction and a cooling medium supply pipe disposed in the internal space so as to leave a space portion around its circumference, i.e. its leading end portion in the vicinity of a plunger head part and the circumference of the pipe wall, so that a cooling medium supplied through the above-mentioned cooling medium supply pipe may flow through the internal space of the above-mentioned plunger from its leading end, the fluid as the cooling medium is supplied in the state suffering little influence by heating in the upper part, and the upper part of the plunger can be cooled efficiently.
  • the plunger and the sleeve so that they have different thermal expansion coefficients, it is possible to effectively prevent formation of a gap therebetween. Consequently, since the sliding movement of the plunger in the sleeve may be smooth, injection can be done without any problem in sliding movement of the plunger, and it is possible to produce a high-quality casting article stably.
  • the injection mechanism with the raw material lump supplying means mentioned above, even in the case of an active metal such as an amorphous alloy, it is possible to perform injection molding of the active metal continuously with one raw material loading, without releasing the vacuum state in the space of the heating-melting section, and to carry out mass production of the injection-molded article of high quality at a low cost.
  • FIG. 1 is a fragmentary sectional front view schematically illustrating one embodiment of the vacuum injection molding apparatus of the present invention
  • FIG. 2 is a sectional view schematically illustrating one embodiment of a plunger to be used in the vacuum injection molding apparatus of the present invention
  • FIG. 3 is a fragmentary sectional side view schematically illustrating one embodiment of a sleeve and a cooling jacket to be used in the vacuum injection molding 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 sectional view of the sleeve and the cooling jacket shown in FIG. 3 taken along the line V-V;
  • FIG. 6 is a fragmentary perspective view illustrating a raw material lump supply mechanism to be used in the vacuum injection molding apparatus of the present invention
  • FIG. 7 is a fragmentary sectional side view illustrating the raw material lump supply mechanism shown in FIG. 6 ;
  • FIG. 8 is a fragmentary plan view illustrating the raw material lump supply mechanism shown in FIG. 6 ;
  • FIG. 9 is a fragmentary sectional front view schematically illustrating one embodiment of the vacuum injection molding apparatus of the present invention, depicting the discharge process of a molded article.
  • FIG. 10 is a fragmentary sectional view schematically illustrating another embodiment of the plunger to be used in the vacuum injection molding apparatus of the present invention.
  • the characteristic feature of the injection molding apparatus of the present invention resides in that, as described above, in the injection molding apparatus comprising a mold, a sleeve disposed so as to be movable forward and backward toward a pouring gate of the mold, a plunger slidably disposed in the sleeve, and a heating means for heating and melting a raw material lump supplied into a raw material accommodating part formed by an inside wall of the sleeve and the plunger mentioned above, the plunger and/or the sleeve mentioned above is equipped with a cooling means and thus a melt of a metal which has been heated and melted hardly flows into a gap between the plunger and the sleeve.
  • the apparatus is characterized by the fact that it is possible to prevent this phenomenon and make the sliding movement of the plunger in the sleeve becomes smooth.
  • the present inventors after pursuing a diligent study, have found that when the upper part of the plunger is cooled as mentioned above and the melt of the heated and molten metal is rapidly cooled and solidified in the state where it has slightly flowed into the gap between the plunger and the sleeve, it is possible to prevent further inflow of the molten metal into the gap and also prevent excess cooling of the molten metal. As a result, it is possible to perform the heating and melting of the metal lump without exerting so much influence thereon, an increase in the sliding resistance is slight because the portion which has flowed into the gap between the plunger and the sleeve and has been solidified is slight, and therefore there is no trouble in sliding movement of the plunger in the sleeve.
  • the present invention has been perfected based on these findings.
  • the upper part of the plunger For the purpose of cooling the upper part of the plunger efficiently, it is effective to form in the plunger an internal space extending along its axial direction and to dispose a cooling medium supply pipe in this internal space so as to leave a space portion around its circumference, i.e. its leading end portion in the vicinity of a plunger head part and the circumference of the pipe wall, so that a cooling medium supplied through the above-mentioned cooling medium supply pipe may flow through the internal space of the above-mentioned plunger from its leading end along the circumferential wall.
  • the fluid as the cooling medium is supplied in the state suffering little influence by heating in the upper part, and the upper part of the plunger can be cooled efficiently.
  • the use of different materials for the plunger and the sleeve so as to have different thermal expansion coefficients is effective in preventing formation of a gap therebetween and decreasing the molten metal portion flowing into the gap between the plunger and the sleeve.
  • the use of the different kinds of materials is also effective in decreasing the heat dispersion and in suppressing the rise in temperature of the plunger.
  • the injection molding apparatus of the present invention in combination with the above-mentioned injection mechanism, with a raw material lump supplying means for supplying a raw material lump to a raw material accommodating part formed by the inside wall of the sleeve mentioned above and the plunger from above. Consequently, it is possible to perform efficient raw material lump supply in a short time and to minimize the stroke of the plunger to prevent the defect of operation produced by the gap between the plunger and the sleeve. Further, the raw material lump heated by a heating source may be efficiently supplied to a cavity of the mold.
  • the raw material lump supplying means mentioned above comprises an accommodating device containing a plurality of raw material lumps, a means for transferring the raw material lump disposed in the accommodating device to an upper position above the device, and a means for transferring the raw material lump transferred onto the upper position of the accommodating device to a position above the sleeve.
  • the injection molding apparatus of the present invention may be applied to the whole field of injection molding of not only an active metal, such as an amorphous alloy, but also a high-melting point metal having a melting point of about 1200° C. or more, it can be particularly advantageously applied to the injection molding of an active metal, such as an amorphous alloy, which requires a vacuum chamber.
  • an active metal such as an amorphous alloy
  • a vacuum chamber a plurality of raw material lumps can be supplied to the raw material accommodating part of the upper part of the sleeve continuously and automatically, without releasing the vacuum state in a vacuum chamber.
  • FIG. 1 through FIG. 9 illustrate one embodiment of a vacuum injection molding apparatus of the present invention.
  • reference numeral 1 denotes a mold which is composed of a fixed lower mold 2 and a movable upper mold 3 .
  • the lower mold 2 having a pouring gate 4 is fixedly secured to a main platen 7 which has a circular opening 6 in the corresponding position and they are sealed by a sealing member (not shown), such as an O-ring, disposed between them.
  • a plurality of tie bars 9 are upstanding in parallel from the main platen 7 , and to the upper ends thereof a stationary platen 10 is fixedly secured.
  • tie bars 9 Although the number of tie bars 9 is four in this embodiment, it is naturally not restricted to this number, and there is a case of three or two, or a case of more than four.
  • a movable platen 11 attached to these tie bars 9 is adapted to be moved up and down by clamping cylinders 12 mounted on the stationary platen 10 .
  • the movable upper mold 3 having cavities 5 formed in the parting surface with the fixed lower mold 2 is fixedly secured to the lower part of the movable platen 11 through the medium of a fixing member 13 and a connection member 14 (which may be integral with the fixing member 13 ). This movable upper mold 3 moves up and down along with ascent and descent of the movable platen 11 .
  • the movable platen 1 1 and the fixing member 13 have aligned mold exhaust vents 15 formed in the predetermined positions thereof, and the sealing between respective two members of the movable platen 11 , the fixing member 13 , the connection member 14 , the movable upper mold 3 , and the fixed lower mold 2 is done by the sealing members (not shown), respectively.
  • a plurality of ejector pins 16 are inserted into the mold 1 so as to be protrusible into the respective cavities 5 .
  • a connection rod 17 of these ejector pins 16 is inserted through the movable platen 11 and the fixing member 13 and constituted so that the lower end face of each ejector pin 16 may be flush with the top faces of the mold cavities 5 by a means for urging it upward and a stopper means (not shown).
  • connection rod 17 comes into contact with the lower end face of a cylinder rod 19 of an ejector cylinder 18 attached to the stationary platen 10 so as to be aligned with the connection rod.
  • the cylinder rod 19 depresses the connection rod 17 , and the ejector pins 16 protrude into the respective cavities 5 .
  • a cylindrical vacuum housing 20 suspending so as to surround the movable upper mold 3 is fixedly secured to the underside of the movable platen 11 through the medium of a sealing member (not shown).
  • a sealing frame 21 is similarly fixedly secured to the top surface of the main platen 7 at the corresponding position through the medium of a sealing member (not shown). Accordingly, when the movable platen 11 descends to perform the clamping of the movable upper mold 3 to the fixed lower mold 2 , the outer surface of the vacuum housing 20 slides on the inner surface of the sealing frame 21 through the medium of a sealing member (not shown) to form a sealed injection molding section space X.
  • a molded article discharge cylinder 22 equipped with an arm part 23 which is capable of approximating to and retreating from the injection molding section at a predetermined height is attached to the main platen 7 in a predetermined position (shown only in FIG. 9 for convenience sake of illustration).
  • a vacuum chamber 24 for forming a heating-melting section space Y in a sealed manner is arranged underneath the main platen 7 and supported by a frame (not shown).
  • the shut-off and the communication between the injection molding section space X mentioned above and the heating-melting section space Y in the vacuum chamber 24 are performed through the closing and opening of the opening 6 by a shielding shutter 26 which is actuated by a shutter cylinder 25 (shown only in FIG. 9 for convenience sake of illustration) so as to slide forward and backward while being in contact with the underside of the main platen 7 .
  • the shielding shutter may be the pivot type.
  • One line L 1 (mold exhaust line) of the vacuum evacuation system of a vacuum pump (comprised of a diffusion pump and a rotary pump) is connected to the mold exhaust vents 15 formed in the movable platen 11 and the fixing member 13 to evacuate the injection molding section space X until it reaches a predetermined degree of vacuum.
  • Another line L 2 is connected to the vacuum chamber 24 to evacuate the heating-melting section space Y until it reaches a predetermined degree of vacuum.
  • a mold air valve for releasing the vacuum state of the injection molding section space X and a vacuum reserve tank are also connected to the mold exhaust line L 1 so that the vacuum state may be formed in the injection molding section space X instantaneously after the clamping of the movable upper mold 3 to the fixed lower mold 2 .
  • an inert gas container may be also connected to the vacuum chamber 24 so that the heating and melting can be carried out under an inert gas atmosphere, such as argon, depending on a raw material to be used.
  • a cooling jacket of the two-part split type is disposed in the vacuum chamber 24 in a position underneath the pouring gate 4 of the fixed lower mold 2 and the opening 6 of the main platen 7 in alignment with these parts and attached to a cylindrical sleeve 27 so as to surround it.
  • the sleeve 27 and the lower end part of the cooling jacket 28 are fixedly secured to a vertically reciprocating plate 31 through the medium of a holding member 30 .
  • This vertically reciprocating plate 31 is actuated by a sleeve moving cylinder 32 to vertically reciprocate the sleeve 27 and the cooling jacket 28 as a whole while being guided with a guide bar 36 . Accordingly, when the sleeve moving cylinder 32 is actuated and the vertically reciprocating plate 31 is vertically reciprocated, the sleeve 27 and the cooling jacket 28 elevate toward the pouring gate 4 of the mold 1 and descend to the original position.
  • the sleeve 27 and the cooling jacket 28 are equipped with a plunger 33 slidably disposed therein.
  • This plunger 33 is actuated by an injection cylinder 35 attached thereto through the medium of a vertically reciprocating plate 34 and adapted to vertically slide in the sleeve 27 and the cooling jacket 28 while being guided with the guide bar 36 .
  • a high-frequency induction heating coil 37 as a heating means is arranged in the perimeter of the upper part of the sleeve 27 .
  • a heating means it is not restricted to the high-frequency induction heating, and it is natural that any other well-known heating methods, such as resistance heating, may be adopted.
  • the above-mentioned plunger 33 comprises a cap-like head part 38 , a hollow body part 39 screwed into this head part 38 , a hollow pipe part 40 fixedly secured to the lower end part of this body part 39 , an upper base part 41 to which the hollow pipe part 40 is attached, a lower base part 42 fixedly secured to this upper base part 41 , and a cooling medium supply pipe 43 of which lower end is attached to the upper base part 41 so as to extend in the axial direction in the internal spaces of the above-mentioned head part 38 , the hollow body part 39 , and the hollow pipe part 40 .
  • the cooling medium supply pipe 43 is arranged so that it may leave a space portion around its circumference, i.e.
  • the above-mentioned space portion communicates with a flow path 44 formed in the upper base part 41
  • the lower end of the cooling medium supply pipe 43 communicates with a flow path 45 formed in the lower base part 42 .
  • a cooling medium such as water and oil
  • supplied through the cooling medium supply pipe from the flow path 45 formed in the above-mentioned lower base part 42 flows through the internal space of the plunger mentioned above from the leading end of the cooling medium supply pipe 43 along the circumferential wall and is discharged from the flow path 44 formed in the upper base part 41 .
  • two piston rings (which may be an arbitrary number) 46 are attached to the outer peripheral surface of the upper part of the above-mentioned head part 38 so that their surfaces may be flush with this outer peripheral surface.
  • the fluid as the cooling medium is supplied in the state suffering little influence by heating in the upper part, and the upper part of the plunger can be cooled efficiently.
  • the temperature of the upper end portion of the above-mentioned head part 38 will become about 800-900° C. and that of the part of the cooling medium supply pipe 43 near the leading end will become about 500-600° C.
  • ceramics are preferred as a material of the head part 38 which is exposed to a high temperature.
  • the cooling jacket 28 of the two-part split type is attached to the circumference of the sleeve 27 so as to surround it, as shown in FIG. 3 through FIG. 5 .
  • the cooling medium flow paths 29 a and 29 b in the shape of bellows are formed in the side walls of respective jacket portions 28 a and 28 b independently, and the cooling medium pipes 29 are attached to these cooling medium flow paths 29 a and 29 b , respectively (see also FIG. 6 ).
  • a raw material lump supplying apparatus 47 is arranged in the neighborhood of the above-mentioned sleeve 27 .
  • This raw material lump supplying apparatus 47 comprises a turntable 48 , a plurality (although in the illustrated embodiment it is four, two or three or more than five may be adopted) of raw material accommodating cylindrical bodies 49 of the shape of upright cylinder installed on the turntable in such a positional relation that its upper end is aligned with the height position of the above-mentioned sleeve 27 , a vertically reciprocating pin 51 which functions as a means for transferring the raw material lump A placed in the raw material accommodating cylindrical body 49 upward, and an arm 50 which functions as a means for transferring the raw material lump A transferred onto an upper position above the raw material accommodating cylindrical body 49 to a position above the sleeve, as shown in FIG.
  • the turntable 48 and the raw material accommodating cylindrical bodies 49 installed thereon constitute a cassette accommodating device, and after all of the raw material lumps placed in respective raw material accommodating cylindrical bodies 49 has been used, it is replaced with a new cassette accommodating device as a whole.
  • the turntable 48 has hole portions 53 formed in the positions where the raw material accommodating cylindrical bodies 49 are installed.
  • the vertically reciprocating pin 51 inserted in this hole portion 53 transfers stepwise the raw material lumps A accommodated in the raw material accommodating cylindrical body 49 upward in order by the operation of a cylinder 52 .
  • the arm 50 grips the raw material lump A projected from the raw material accommodating cylindrical body 49 , moves forward by the operation of a cylinder 54 , and throws the raw material lump A into the sleeve 27 from the position above the sleeve 27 .
  • the cylinder 52 is actuated again to transfer the raw material lumps A accommodated in the raw material accommodating cylindrical body 49 upward by one step.
  • the cylinder 52 is actuated to move the vertically reciprocating pin 51 downward so that it is pulled out of the hole portion 53 .
  • a stepping motor (not shown) rotates to turn round the turntable 48 only a predetermined angle so that the hole portion 53 of the next raw material accommodating cylindrical body 49 is located on the vertically reciprocating pin 51 . In this way, the raw material lump A accommodated in the raw material accommodating cylindrical body 49 is supplied into the sleeve 27 one by one.
  • the high-frequency induction heating coil 37 is demagnetized, the shutter cylinder 25 is actuated to open the shielding shutter 26 , and the injection molding section space X communicates with the heating-melting section space Y.
  • the sleeve moving cylinder 32 and the injection cylinder 35 are immediately actuated synchronously, thus the sleeve 27 and the plunger 33 are elevated until the upper end of the sleeve 27 comes into close contact with the periphery of the pouring gate 4 of the mold 1 , and at the same time the molten metal pressurized by the plunger 33 which is still elevated to a further predetermined distance is injected into and filled in the mold cavities 5 , rapidly solidified because its heat is taken by the mold 1 , and eventually molded.
  • the shielding shutter 26 is closed, then the movable platen 11 is elevated by the clamping cylinder 12 , and the mold 1 is opened, as shown in FIG. 9 .
  • the movable platen 11 reaches the top dead center, the upper end face of the connection rod 17 of the ejector pins 16 will assume the state of abutting against the lower end face of the cylinder rod 19 of the ejector cylinder 18 .
  • the ejector cylinder 18 is actuated to protrude the ejector pin 16 downward, thereby separating the molded article B from the movable upper mold 3 and dropping it on the fixed lower mold 2 .
  • the molded article discharge cylinder 22 is actuated, and the arm section 23 moves forward, grasps the molded article B, and then retreats to take out the molded article B from the apparatus.
  • the clamping cylinder 12 is again actuated to close the mold 1 , and the next injection cycle will be performed.
  • FIG. 10 shows a modification of the plunger.
  • This plunger 33 a is different from the above-mentioned embodiment in that a collect chuck 55 is interposed between a cap-like upper head part 38 a and a hollow lower head part 38 b .
  • This collect chuck 55 is caulked between the upper head part 38 a and the lower head part 38 b by pushing the upper head part 38 a into the collect chuck 55 .
  • a metal plate 56 is interposed between the upper head part 38 a and the collect chuck 55 so that the upper head part 38 a may not contact a cooling medium fluid, such as water.
  • two (which may be an arbitrary number) piston rings 46 are attached to the outer peripheral surface of the upper end portion of the lower head part 38 b so that their surfaces are flush with this outer peripheral surface.
  • the hollow body part 39 is screwed into the lower head part 38 b
  • the hollow pipe part 40 is fixedly secured to the lower end of this body part 39
  • the cooling medium supply pipe 43 is disposed in the internal spaces of the body part 39 and the hollow pipe part 40 so as to extend in the axial direction.
  • the cooling medium fluid such as water and oil
  • supplied through the cooling medium supply pipe flows through the internal space of the plunger mentioned above from the leading end of the cooling medium supply pipe 43 along the circumferential wall and is discharged.
  • ceramics are preferred.
  • the other modification of attachment of the upper head part of the plunger screwing, brazing, etc. may be considered.
  • the use of the injection mechanism described above has exhibited the effects shown in the following Table as compared with the case of the conventional sleeve and plunger which have not been cooled (a piston ring was also not used).
  • the plunger having the structure shown in FIG. 10 was used.
  • the cast alloy was an amorphous alloy (Zr 60 Al 15 Co 2.5 Ni 7.5 Cu 15 alloy).
  • the present invention is not limited to the above-mentioned embodiments and any changes in design may be adoptable.
  • the apparatus of the present invention may be advantageously used in the injection molding of an active metal which tends to be oxidized and to be deteriorated by heating such as, for example, an alloy containing at least one active metal element selected among Al, Mg, Fe, Ti, Zr, Hf, Y, La, Ce, Nd, Sm and Mm (misch metal) in which the total of the active metal elements in the alloy is not less than 50 atomic %, it is not limited to this embodiment and may be used in the injection molding of various metals having a high melting point.
  • the apparatus of the present invention is particularly advantageously applicable to the injection molding of the amorphous alloy having a composition represented by either one of the following general formulas (1) to (6).
  • M 1 represents either or both of the two elements, Zr and Hf
  • M 2 represents at least one element selected from the group consisting of Ni, Cu, Fe, Co, Mn, Nb, Ti, V, Cr, Zn, Al, and Ga
  • Ln represents at least one element selected from the group consisting of Y, La, Ce, Nd, Sm, Gd, Tb, Dy, Ho, Yb, and Mm (misch metal: aggregate of rare earth elements)
  • M 3 represents at least one element selected from the group consisting of Be, B, C, N, and O
  • M 4 represents at least one element selected from the group consisting of Ta, W, and Mo
  • M 5 represents at least one element selected from the group consisting of Au, Pt, Pd, and Ag
  • a, b, c, d, e, and f represent such atomic percentages as respectively satisfy 25 ⁇ a ⁇ 85, 15 ⁇ b ⁇ 75, 0 ⁇ c ⁇ 30, 0 ⁇ d ⁇ 30, 0 ⁇ e ⁇ 15, and
  • Ln represents at least one element selected from the group consisting of Y, La, Ce, Nd, Sm, Gd, Tb, Dy, Ho, Yb, and Mm
  • M 6 represents at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb, Mo, Hf, Ta, and W
  • M 3 represents at least one element selected from the group consisting of Be, B, C, N, and O
  • g, h, and i represent such atomic percentages as respectively satisfy 30 ⁇ g ⁇ 90, 0 ⁇ h ⁇ 55, and 0 ⁇ i ⁇ 10.
  • M 7 represents at least one element selected from the group consisting of Cu, Ni, Sn, and Zn; and p represents an atomic percentage falling in the range of 5 ⁇ p ⁇ 60.
  • This amorphous alloy has large negative enthalpy of mixing and good producibility of the amorphous structure.
  • M 7 represents at least one element selected from the group consisting of Cu, Ni, Sn, and Zn
  • M 8 represents at least one element selected from the group consisting of Al, Si, and Ca
  • q and r represent such atomic percentages as respectively satisfy 1 ⁇ q ⁇ 35 and 1 ⁇ r ⁇ 25.
  • M 7 represents at least one element selected from the group consisting of Cu, Ni, Sn, and Zn
  • M 8 represents at least one element selected from the group consisting of Al, Si, and Ca
  • M 9 represents at least one element selected from the group consisting of Y, La, Ce, Nd, Sm, and Mm
  • q, r, and s represent such atomic percentages as respectively satisfy 1 ⁇ q ⁇ 35, 1 ⁇ r ⁇ 25, and 3 ⁇ s ⁇ 25.
  • these amorphous alloys manifest very satisfactory workability owing to viscous flow even at such low stress not more than some tens MPa.
  • the Zr-TM-Al and Hf-TM-Al amorphous alloys to be used in the present invention possess very large range of ⁇ Tx, though variable with the composition of alloy and the method of determination.
  • the Vickers hardness (Hv) of this alloy at temperatures from room temperature through the neighborhood of Tg is 460 (DPN), the tensile strength thereof is 1,600 MPa, and the bending strength thereof is up to 3,000 MPa.
  • the thermal expansion coefficient, ⁇ of this alloy from room temperature through the neighborhood of Tg is as small as 1 ⁇ 10 ⁇ 5 /K, the Young's modulus thereof is 91 GPa, and the elastic limit thereof in a compressed state exceeds 4-5%. Further, the toughness of the alloy is high such that the Charpy impact value falls in the range of 60-70 kJ/m 2.
  • This alloy while exhibiting such properties of very high strength as mentioned above, has the flow stress thereof lowered to the neighborhood of 10 MPa when it is heated up to the glass transition range thereof. This alloy, therefore, is characterized by being worked very easily and being manufactured with low stress into minute parts and high-precision parts complicated in shape.
  • this alloy is characterized by allowing manufacture of formed (deformed) articles with surfaces of extremely high smoothness and having substantially no possibility of forming a step which would arise when a slip band appeared on the surface as during the deformation of a crystalline alloy.
  • an amorphous alloy begins to crystallize when it is heated to the glass transition range thereof and retained therein for a long time.
  • the aforementioned alloys which possess such a wide ⁇ Tx range as mentioned above enjoy a stable amorphous phase and, when kept at a temperature properly selected in the ⁇ Tx range, avoid producing any crystal for a duration up to about two hours.
  • the user of these alloys therefore, does not need to feel any anxiety about the occurrence of crystallization during the standard molding process.
  • the aforementioned alloys manifest these properties unreservedly during the course of transformation thereof from the molten state to the solidified state.
  • the manufacture of an amorphous alloy requires rapid cooling.
  • the aforementioned alloys allow easy production of a bulk material of a single amorphous phase from a melt by the cooling which is effected at a rate of about 10 K/s.
  • the solid bulk material consequently formed also has a very smooth surface.
  • the alloys have transferability such that even a scratch of the order of microns inflicted by the polishing work on the surface of a mold is faithfully reproduced.
  • the mold to be used for producing the molded article is only required to have the surface thereof adjusted to fulfill the surface quality expected of the molded article because the molded product faithfully reproduces the surface quality of the mold, and therefore these alloys allow the steps for adjusting the size and the surface roughness of the molded article to be omitted or diminished.
  • the characteristics of the aforementioned amorphous alloys including in combination relatively low hardness, high tensile strength, high bending strength, relatively low Young's modulus, high elastic limit, high impact resistance, high wear resistance, smoothness of surface, and highly accurate castability render these alloys appropriate for use as the material for molded articles in various fields such as, for example, precision parts represented by ferrules, capillaries, sleeves or V-grooved substrates in optical connectors, toothed wheels, and micromachines.
  • the amorphous alloy possesses highly accurate castability and machinability as well as excellent transferability capable of faithfully reproducing the contour of the cavity of the mold
  • the molded articles which satisfy dimensional prescription, dimensional accuracy, and surface quality can be manufactured by the mold casting method in a single process with high mass productivity insofar as the mold to be used is suitably prepared.
  • any amorphous alloys heretofore known in the art such as, for example, amorphous alloys disclosed in JP 10-186176, JP 10-311923, JP 11-104281, and JP 11-189855 may be used besides the amorphous alloys mentioned above.
  • amorphous alloys disclosed in JP 10-186176, JP 10-311923, JP 11-104281, and JP 11-189855 may be used besides the amorphous alloys mentioned above.
  • the injection molding apparatus of the present invention is suitable for the production of various molded articles of various metals, particularly active metals such as amorphous alloys.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US11/487,052 2004-01-15 2006-07-14 Injection molding apparatus Abandoned US20060254747A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
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
PCT/JP2005/000377 WO2005068110A1 (ja) 2004-01-15 2005-01-14 射出鋳造装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/000377 Continuation WO2005068110A1 (ja) 2004-01-15 2005-01-14 射出鋳造装置

Publications (1)

Publication Number Publication Date
US20060254747A1 true US20060254747A1 (en) 2006-11-16

Family

ID=34792208

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/487,052 Abandoned US20060254747A1 (en) 2004-01-15 2006-07-14 Injection molding apparatus

Country Status (6)

Country Link
US (1) US20060254747A1 (ja)
JP (1) JP4339135B2 (ja)
KR (1) KR20070001094A (ja)
CN (1) CN100528408C (ja)
DE (1) DE112005000190B4 (ja)
WO (1) WO2005068110A1 (ja)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067512A1 (en) * 2007-11-20 2009-05-28 Buhlerprince, Inc. Vacuum die casting machine and process
US20120111522A1 (en) * 2010-11-05 2012-05-10 Bullied Steven J Die casting system machine configurations
EP2486994A3 (en) * 2011-02-09 2012-10-31 United Technologies Corporation Shot tube plunger for a die casting system
US8459331B2 (en) * 2011-08-08 2013-06-11 Crucible Intellectual Property, Llc Vacuum mold
US8701742B2 (en) 2012-09-27 2014-04-22 Apple Inc. Counter-gravity casting of hollow shapes
US8813816B2 (en) 2012-09-27 2014-08-26 Apple Inc. Methods of melting and introducing amorphous alloy feedstock for casting or processing
US8813817B2 (en) 2012-09-28 2014-08-26 Apple Inc. Cold chamber die casting of amorphous alloys using cold crucible induction melting techniques
US8813814B2 (en) 2012-09-28 2014-08-26 Apple Inc. Optimized multi-stage inductive melting of amorphous alloys
US8813818B2 (en) 2011-11-11 2014-08-26 Apple Inc. Melt-containment plunger tip for horizontal metal die casting
US8813813B2 (en) 2012-09-28 2014-08-26 Apple Inc. Continuous amorphous feedstock skull melting
US8826968B2 (en) 2012-09-27 2014-09-09 Apple Inc. Cold chamber die casting with melt crucible under vacuum environment
US8833432B2 (en) 2012-09-27 2014-09-16 Apple Inc. Injection compression molding of amorphous alloys
US20140262111A1 (en) * 2013-03-14 2014-09-18 Crucible Intellectual Property, Llc Plunger with removable plunger tip
US20140284019A1 (en) * 2011-09-30 2014-09-25 John Kang Injection molding of amorphous alloy using an injection molding system
US8858868B2 (en) 2011-08-12 2014-10-14 Crucible Intellectual Property, Llc Temperature regulated vessel
US9004151B2 (en) 2012-09-27 2015-04-14 Apple Inc. Temperature regulated melt crucible for cold chamber die casting
US20150202684A1 (en) * 2012-02-29 2015-07-23 Heishin Techno Werke Ltd. Method for molding amorphous alloy, and molded object prouduced by said molding method
EP2790853A4 (en) * 2011-12-15 2015-08-05 Shenzhen Byd Auto R & D Co Ltd SHELL MOLDING DEVICE AND METHOD FOR AMORPHOUS ALLOY
US9302320B2 (en) 2011-11-11 2016-04-05 Apple Inc. Melt-containment plunger tip for horizontal metal die casting
US9314839B2 (en) 2012-07-05 2016-04-19 Apple Inc. Cast core insert out of etchable material
US9346099B2 (en) 2012-10-15 2016-05-24 Crucible Intellectual Property, Llc Unevenly spaced induction coil for molten alloy containment
US9445459B2 (en) 2013-07-11 2016-09-13 Crucible Intellectual Property, Llc Slotted shot sleeve for induction melting of material
EP3075466A4 (en) * 2013-11-30 2016-11-30 Inst Metal Res Chinese Acad Sc DEVICE AND METHOD FOR CASTING FORMING AMORPHOUS ALLOY ELEMENTS
US20170106439A1 (en) * 2014-07-10 2017-04-20 Dong Keun Go Mold Device for Forming Metal In High-Level Vacuum Environment
US20170113268A1 (en) * 2014-06-26 2017-04-27 Dong Keun Go Device and method for melting and forming metal in vacuum environment
US9873151B2 (en) 2014-09-26 2018-01-23 Crucible Intellectual Property, Llc Horizontal skull melt shot sleeve
US9925583B2 (en) 2013-07-11 2018-03-27 Crucible Intellectual Property, Llc Manifold collar for distributing fluid through a cold crucible
US9993867B2 (en) * 2014-01-10 2018-06-12 Fukui Prefectural Government High-pressure casting method and high-pressure casting device
US10566225B2 (en) 2015-07-13 2020-02-18 Entegris, Inc. Substrate container with enhanced containment

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4688145B2 (ja) * 2005-06-09 2011-05-25 日本碍子株式会社 ダイキャスト装置及びダイキャスト方法
KR101023486B1 (ko) * 2007-04-10 2011-03-21 김광철 진공 고압주조기
JP5014088B2 (ja) * 2007-11-28 2012-08-29 京セラ株式会社 金属溶湯射出用のプランジャおよびこれを用いたホットチャンバダイカストマシン
JP4679614B2 (ja) * 2008-08-05 2011-04-27 美和ロック株式会社 ダイカストマシン
CN101579722A (zh) * 2009-06-23 2009-11-18 鲍璐华 一种活塞环筒体铸造型模机及型模制造方法
JP2011144400A (ja) * 2010-01-12 2011-07-28 Olympus Corp 遷移金属粒子分散合金及びその製造方法、並びに、遷移金属粒子分散非晶質合金及びその製造方法
JP2011219715A (ja) * 2010-02-10 2011-11-04 Hitachi Chem Co Ltd 成形用樹脂コンパウンド材料
JP5273822B2 (ja) * 2010-12-24 2013-08-28 日本碍子株式会社 ダイキャスト装置及びダイキャスト方法
JP5273823B2 (ja) * 2010-12-24 2013-08-28 日本碍子株式会社 ダイキャスト装置及びダイキャスト方法
CH704444A2 (de) * 2011-02-01 2012-08-15 Frederic Muller Einstückige Giesskammer einer Druckgiessmaschine, die zum Temperaturausgleich eine Kühleinrichtung aufweist.
CN104668503B (zh) * 2013-11-30 2017-05-31 中国科学院金属研究所 一种非晶合金构件铸造成型设备和工艺
CN103736957A (zh) * 2013-12-26 2014-04-23 苏州三基铸造装备股份有限公司 一种立式压力铸造机
WO2018071217A1 (en) * 2016-10-10 2018-04-19 Arconic Inc. High pressure alloy casting process and apparatus
DE102017105478A1 (de) * 2017-03-15 2018-09-20 Nemak, S.A.B. De C.V. Vorrichtung zum Schießen eines Gießkerns
CN112207257B (zh) * 2020-11-11 2024-07-30 广东鸿特精密技术（台山）有限公司 一种用于压铸机的通用型熔杯
KR102592191B1 (ko) * 2021-11-10 2023-10-23 주식회사 삼기 고진공 다이캐스팅 금형

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842038A (en) * 1985-11-26 1989-06-27 Ube Industries, Inc. Injection method of die casting machine
US6044893A (en) * 1997-05-01 2000-04-04 Ykk Corporation Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure
US6425434B1 (en) * 1999-06-04 2002-07-30 Mueller André Casting chamber for a die casting machine
US6845809B1 (en) * 1999-02-17 2005-01-25 Aemp Corporation Apparatus for and method of producing on-demand semi-solid material for castings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3049648B2 (ja) * 1993-12-13 2000-06-05 日立金属株式会社 加圧成形方法および加圧成形機
JPH09164465A (ja) * 1995-12-13 1997-06-24 U Mold:Kk 竪型ダイカスト法および装置
JPH1058108A (ja) * 1996-08-20 1998-03-03 Toyota Motor Corp ダイカストマシンの冷却構造
US6021840A (en) * 1998-01-23 2000-02-08 Howmet Research Corporation Vacuum die casting of amorphous alloys
DE19938076A1 (de) * 1999-08-12 2001-02-15 Munderkinger Industrievertretu Preßkolben
JP4011256B2 (ja) * 2000-03-01 2007-11-21 Ｙｋｋ株式会社 活性合金成形用真空溶解射出成形装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842038A (en) * 1985-11-26 1989-06-27 Ube Industries, Inc. Injection method of die casting machine
US6189600B1 (en) * 1997-01-01 2001-02-20 Ykk Corporation Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure
US6044893A (en) * 1997-05-01 2000-04-04 Ykk Corporation Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure
US6845809B1 (en) * 1999-02-17 2005-01-25 Aemp Corporation Apparatus for and method of producing on-demand semi-solid material for castings
US6425434B1 (en) * 1999-06-04 2002-07-30 Mueller André Casting chamber for a die casting machine

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067512A1 (en) * 2007-11-20 2009-05-28 Buhlerprince, Inc. Vacuum die casting machine and process
US20120111522A1 (en) * 2010-11-05 2012-05-10 Bullied Steven J Die casting system machine configurations
EP2486994A3 (en) * 2011-02-09 2012-10-31 United Technologies Corporation Shot tube plunger for a die casting system
US8356655B2 (en) 2011-02-09 2013-01-22 United Technologies Corporation Shot tube plunger for a die casting system
US8757243B2 (en) 2011-02-09 2014-06-24 United Technologies Corporation Shot tube plunger for a die casting system
US8459331B2 (en) * 2011-08-08 2013-06-11 Crucible Intellectual Property, Llc Vacuum mold
US8858868B2 (en) 2011-08-12 2014-10-14 Crucible Intellectual Property, Llc Temperature regulated vessel
US20140284019A1 (en) * 2011-09-30 2014-09-25 John Kang Injection molding of amorphous alloy using an injection molding system
US8813818B2 (en) 2011-11-11 2014-08-26 Apple Inc. Melt-containment plunger tip for horizontal metal die casting
US9302320B2 (en) 2011-11-11 2016-04-05 Apple Inc. Melt-containment plunger tip for horizontal metal die casting
EP2790853A4 (en) * 2011-12-15 2015-08-05 Shenzhen Byd Auto R & D Co Ltd SHELL MOLDING DEVICE AND METHOD FOR AMORPHOUS ALLOY
US20150202684A1 (en) * 2012-02-29 2015-07-23 Heishin Techno Werke Ltd. Method for molding amorphous alloy, and molded object prouduced by said molding method
US9314839B2 (en) 2012-07-05 2016-04-19 Apple Inc. Cast core insert out of etchable material
US8813816B2 (en) 2012-09-27 2014-08-26 Apple Inc. Methods of melting and introducing amorphous alloy feedstock for casting or processing
US9254521B2 (en) 2012-09-27 2016-02-09 Apple Inc. Methods of melting and introducing amorphous alloy feedstock for casting or processing
US8833432B2 (en) 2012-09-27 2014-09-16 Apple Inc. Injection compression molding of amorphous alloys
US8701742B2 (en) 2012-09-27 2014-04-22 Apple Inc. Counter-gravity casting of hollow shapes
US9238266B2 (en) 2012-09-27 2016-01-19 Apple Inc. Cold chamber die casting with melt crucible under vacuum environment
US9004149B2 (en) 2012-09-27 2015-04-14 Apple Inc. Counter-gravity casting of hollow shapes
US9004151B2 (en) 2012-09-27 2015-04-14 Apple Inc. Temperature regulated melt crucible for cold chamber die casting
US8826968B2 (en) 2012-09-27 2014-09-09 Apple Inc. Cold chamber die casting with melt crucible under vacuum environment
US9649685B2 (en) 2012-09-27 2017-05-16 Apple Inc. Injection compression molding of amorphous alloys
US9101977B2 (en) 2012-09-28 2015-08-11 Apple Inc. Cold chamber die casting of amorphous alloys using cold crucible induction melting techniques
US8813817B2 (en) 2012-09-28 2014-08-26 Apple Inc. Cold chamber die casting of amorphous alloys using cold crucible induction melting techniques
US8813813B2 (en) 2012-09-28 2014-08-26 Apple Inc. Continuous amorphous feedstock skull melting
US8813814B2 (en) 2012-09-28 2014-08-26 Apple Inc. Optimized multi-stage inductive melting of amorphous alloys
US9346099B2 (en) 2012-10-15 2016-05-24 Crucible Intellectual Property, Llc Unevenly spaced induction coil for molten alloy containment
US10197335B2 (en) 2012-10-15 2019-02-05 Apple Inc. Inline melt control via RF power
US9841237B2 (en) 2012-10-15 2017-12-12 Crucible Intellectual Property, Llc Unevenly spaced induction coil for molten alloy containment
US9810482B2 (en) 2012-10-15 2017-11-07 Apple Inc. Inline melt control via RF power
US20140262111A1 (en) * 2013-03-14 2014-09-18 Crucible Intellectual Property, Llc Plunger with removable plunger tip
US8978736B2 (en) * 2013-03-14 2015-03-17 Crucible Intellectual Property, Llc Plunger with removable plunger tip
US9445459B2 (en) 2013-07-11 2016-09-13 Crucible Intellectual Property, Llc Slotted shot sleeve for induction melting of material
US9925583B2 (en) 2013-07-11 2018-03-27 Crucible Intellectual Property, Llc Manifold collar for distributing fluid through a cold crucible
US10857592B2 (en) 2013-07-11 2020-12-08 Crucible Intellectual Property, LLC. Manifold collar for distributing fluid through a cold crucible
EP3075466A4 (en) * 2013-11-30 2016-11-30 Inst Metal Res Chinese Acad Sc DEVICE AND METHOD FOR CASTING FORMING AMORPHOUS ALLOY ELEMENTS
US9993867B2 (en) * 2014-01-10 2018-06-12 Fukui Prefectural Government High-pressure casting method and high-pressure casting device
US20170113268A1 (en) * 2014-06-26 2017-04-27 Dong Keun Go Device and method for melting and forming metal in vacuum environment
US10086427B2 (en) * 2014-06-26 2018-10-02 Dong Keun Go Device and method for melting and forming metal in vacuum environment
US9821370B2 (en) * 2014-07-10 2017-11-21 Dong Keun Go Mold device for forming metal in high-level vacuum environment
US20170106439A1 (en) * 2014-07-10 2017-04-20 Dong Keun Go Mold Device for Forming Metal In High-Level Vacuum Environment
AU2015288553B2 (en) * 2014-07-10 2018-11-01 Dong Keun Go Mold apparatus for molding metal in high vacuum environment
US9873151B2 (en) 2014-09-26 2018-01-23 Crucible Intellectual Property, Llc Horizontal skull melt shot sleeve
US10566225B2 (en) 2015-07-13 2020-02-18 Entegris, Inc. Substrate container with enhanced containment

Also Published As

Publication number Publication date
CN100528408C (zh) 2009-08-19
JP4339135B2 (ja) 2009-10-07
CN1909996A (zh) 2007-02-07
DE112005000190T5 (de) 2006-11-23
JP2005199309A (ja) 2005-07-28
WO2005068110A1 (ja) 2005-07-28
KR20070001094A (ko) 2007-01-03
DE112005000190B4 (de) 2010-04-08

Similar Documents

Publication Publication Date Title
US20060254747A1 (en) Injection molding apparatus
KR100304493B1 (ko) 금형으로가압주조성형된비정질합금성형품의제조방법및장치
US20060081310A1 (en) Amorphous alloy excelling in fatigue strength
JP3784578B2 (ja) 金型で加圧鋳造成形された非晶質合金成形品の製造方法及び装置
US7708051B2 (en) Method for manufacture of a physical quantity detector
JP4011256B2 (ja) 活性合金成形用真空溶解射出成形装置
US5711363A (en) Die casting of bulk-solidifying amorphous alloys
KR101203757B1 (ko) 금속 유리의 성형 방법
EP0233452B1 (en) Die casting machine
EP0867246B1 (en) Method and apparatus for injection molding of semi-molten metals
US20090321037A1 (en) Mold assembly apparatus and method for molding metal articles
JP2001347346A (ja) 合金塊の製造方法及び装置
US6896417B2 (en) Hollow cast article with slit, method and apparatus for production thereof
USRE38617E1 (en) Method of injection molding plastic lens
EP0955147A1 (en) Method of injection molding plastic lens
JP3792471B2 (ja) 線材への連続射出成形用金型及び装置
JP4425645B2 (ja) 射出鋳造装置の原料塊供給装置
US6627008B1 (en) Grooved substrates for multifiber optical connectors and for alignment of multiple optical fibers and method for production thereof
JP2001249250A (ja) 光ファイバ一体型フェルールの製造方法及び装置
JP2005178090A (ja) 射出成形用金型装置
JP2007320261A (ja) 断熱金型、金型部品及び成形機

Legal Events

Date Code Title Description
AS Assignment

Owner name: YKK CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ISHIDA, MAMORU;KAWANISHI, MAKOTO;REEL/FRAME:018066/0831

Effective date: 20060705

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION