EP1970144B1 - Verfahren und Vorrichtung für die Zufuhr eines halbfesten Metalls - Google Patents

Verfahren und Vorrichtung für die Zufuhr eines halbfesten Metalls Download PDF

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Publication number
EP1970144B1
EP1970144B1 EP08152690A EP08152690A EP1970144B1 EP 1970144 B1 EP1970144 B1 EP 1970144B1 EP 08152690 A EP08152690 A EP 08152690A EP 08152690 A EP08152690 A EP 08152690A EP 1970144 B1 EP1970144 B1 EP 1970144B1
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EP
European Patent Office
Prior art keywords
semi
crucible
solid metal
gutter
injection sleeve
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.)
Expired - Fee Related
Application number
EP08152690A
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English (en)
French (fr)
Other versions
EP1970144A1 (de
Inventor
Kenji Ohwada
Tomonori Sakai
Tsuyoshi Kimura
Koichi Kuroki
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.)
Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1970144A1 publication Critical patent/EP1970144A1/de
Application granted granted Critical
Publication of EP1970144B1 publication Critical patent/EP1970144B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D17/007—Semi-solid pressure die casting

Definitions

  • EP Publication No. 0903193 discloses a method for preparing a semi-solid metal (slurry) in a solid-liquid coexisting state by cooling a metal such as aluminum or magnesium in a molten state, or alloys of these or the like , and producing a metal molded product by using the semi-solid metal.
  • a molding apparatus including an injection sleeve formed with an opening portion, and a plunger provided progressively/regressively at inside of the injection sleeve is used. Specifically, first, a semi-solid metal is supplied from the opening portion to the injection sleeve. Next, the semi-solid metal supplied to the injection sleeve is extruded by the plunger to be injected into a die connected to the injection sleeve. Next, the semi-solid metal injected into the die is cooled to solidify the semi-solid metal.
  • a metal molded product in accordance with a shape of an inner portion of the die can be fabricated as described above.
  • WO Publication No. 2006/120980 discloses an apparatus by which a semisolidified metallic slurry material can be fed without fail to the right position in a sleeve.
  • a metallic material in a molten state is poured into a vessel which has a bottom and is held upright.
  • the bottomed vessel is turned sideways with a support supporting the bottomed vessel.
  • the bottomed vessel in the lying state is divided and separated into a bottom part and a barrel part. Simultaneously therewith, the barrel part having the semisolidified metallic slurry material enclosed therein is held in the lying state with a supporting arm and moved to a material setting position in the sleeve of an injection molding machine.
  • a gutter is provided on a front end side of the crucible, and at the second step, a front end of the gutter is inserted into the opening portion by the predetermined angle and the semi-solid metal may be injected from the front end of the gutter.
  • the gutter does not constitute a hindrance when the molten metal is stirred and the moltenmetal can uniformly be stirred.
  • the control apparatus inserts a front end of the crucible into the opening portion of the injection sleeve by a predetermined angle and injects the semi-solid metal contained in the crucible on a side in a direction of advancing the plunger more than at the opening portion.
  • the carry arm may include a gutter capable of being connected to the vessel, and the controlling apparatus may connect the gutter to the crucible, insert a front end of the gutter into the opening portion by a predetermined angle and inject the semi-solid metal from the front end of the gutter.
  • the gutter can be connected to the vessel by grabbing the vessel by the carry arm, and therefore, an effect similar to the above-described effect is achieved.
  • the gutter may be constituted by a shape of a groove.
  • the gutter is constituted by the shape of the groove, and therefore, in comparison with the case in which the gutter is constituted by a shape of a cylinder, the atmosphere is easy to flow smoothly to the inner portion of the vessel and the semi-solid metal can smoothly be injected from the crucible.
  • the front end of the crucible is inserted into the opening portion of the injection sleeve by the predetermined angle and the semi-solid metal is injected to the side in the direction of advancing the plunger more than at the opening portion by way of the front end of the crucible. Therefore, even when the semi-solid metal is extruded by the plunger, the semi-solid metal can be prevented from jumping out from the opening portion.
  • Fig.1 is a perspective view showing a supply apparatus 10 and a molding apparatus 30 supplied with a semi-solid metal by the supply apparatus 10 accordinging to the exemplary embodiment of the invention.
  • the molding apparatus 30 injects the semi-solid metal from a front end of the injection sleeve into the die by making the plunger 32 progress.
  • the supply apparatus 10 includes a crucible 11 in a shape of a cylinder, a carry arm 13 carrying to move the crucible 11, and a control apparatus 14 for controlling the carry arm 13. Further, although in Fig. 1 , the crucible 11 in the shape of the circular cylinder is illustrated, a crucible in a shape of a square cylinder will do. The circular cylinder shape is simply fabricated and easy to stir a molten metal stored at inside of the crucible by a cooling block 121 (refer to Fig.3 ) to be along an inner wall of the crucible 11.
  • moving means including a moving unit moving in 3 axes orthogonal to each other, that is, X axis-Y axis-Z axis, including the rod having the function of pivoting and rocking at a front end, and having the hand 136 on a front end side of the rod.
  • Fig.2 is a perspective view of the gutter 131.
  • An inner diameter of the front end portion 134 is made to be smaller than an inner diameter of the gutter main body 132.
  • a taper portion 132 is constituted between the gutter main body 132 and the front end portion 134.
  • the gutter 131 is made to be attachable and detachable to and from the crucible 11 and is mounted to the crucible 11 when the crucible 11 is grabbed by the hand 136.
  • the semi-solid metal is contained in the crucible 11.
  • the semi-solid metal is produced from a molten metal comprising a molten metal of aluminum or magnesium, or alloys of these or the like by using a stirrer 12.
  • the crucible 11 provided to a production line of fabricating the semi-solid metal is a bottomed heat insulating crucible supplied with an amount of 1 shot of a molten metal of the molding apparatus 30.
  • Fig.3 is a perspective view of the stirrer 12.
  • the stirrer 12 is for cooling and stirring the molten metal at inside of the crucible 11 and includes the cooling block (cooling member) 121 at a previously set temperature, a rotation drive source 122 for driving to rotate the cooling block 121, and a moving mechanism 125 for moving the cooling block 121 and the rotation drive source 122 on a horizontal face longitudinally and transversely, for example, moving in X, Y axis directions. That is, the cooling block 121 and the rotation drive source 122 are moved while being supported by a support member, not illustrated, specifically, a moving unit moved in X, Y axis directions having support rails orthogonal to each other, or an articulated robot of about 3 through 6 axes, not illustrated, or the like.
  • the moving mechanism 125 is a moving mechanism for horizontally moving the cooling block 121 and the rotation drive source 122.
  • the cooling block 121 is constituted by a shape of a square pillar and is provided with a draft from a base end to a front end thereof. Further, an outer shape of the cooling block 121 may be constituted by a polygonal shape having one or more of corners, a faced polygonal shape having 3 or more of corners, a shape of an ellipse, or a shape of a compounded ellipse, thereby, a vortex is easy to be generated in stirring the molten metal, a stirring capacity can be promoted, and a crystal can be prevented from being produced at the inner wall of the heat insulating crucible.
  • the cooling block 121 is constituted by a material which is not melted by the molten metal, and a temperature thereof is controlled by a temperature control portion, not illustrated.
  • the rotation drive source 122 is connected to the base end of the cooling block 121 by way of a rotating shaft 123 and a coupler 124 made of a ceramic for driving to rotate the cooling block 121 centering on the rotating shaft 123.
  • the coupler 124 made of a ceramic is provided to the rotation drive source 122 to be able to remove the cooling block 121.
  • the moving mechanism 125 moves the cooling block 121 and the rotation drive source 122 in a vertical direction and moves the cooling block 121 and the rotation drive source 122 in a spiral shape in an arrow mark B direction in Fig. 3 on a horizontal plane. That is, the molten metal stored at inside of the crucible is cooled by way of the cooling block 121 cooled to a predetermined temperature equal to or lower than a temperature of the molten metal, and an amount of 1 shot of the molten metal is stirred in a horizontal direction to be along the crucible 11 and separated from the crucible 11 by the cooling block 121 while rotating the cooling block 121. Further, the cooling block 121 may be moved in a spiral shape in a horizontal direction.
  • the molten metal can effectively be stirred by hampering a directionality of cooling as less as possible.
  • the directionality of cooling can further be hampered as less as possible and the molten metal can swiftly be stirred.
  • the molten metal is supplied to the crucible 11, and the cooling block 121 is dipped into the molten metal at inside of the crucible 11 by moving the cooling block 121 and the rotation drive source 122 in a vertical lower direction by rotating the cooling block 121 at a previously set temperature by a comparatively low speed centering on the rotating shaft 123 by the rotation drive source 122 of the stirrer 12.
  • a speed of rotating the cooling block 121 is increased by the rotation drive source 122 and the cooling block 121 and the rotation drive source 122 are moved in the spiral shape by the moving mechanism 125. Thereby, the molten metal is cooled and stirred swiftly.
  • the cooling block 121 is pulled up from the molten metal at inside of the crucible 11 by moving the cooling block 121 and the rotation drive source 122 in a vertical upper direction by the moving mechanism 125 while rotating the cooling block 121 by the rotation drive source 122.
  • the molten metal at inside of the crucible 11 becomes a semi-solidmetal maintained at a constant temperature as a whole.
  • the semi-solid metal is supplied into the injection sleeve 31 by grabbing the crucible 11 containing the semi-solid metal by the hand 136 of the carry arm 13 of an articulated robot or the like, not illustrated, and inserting the front end portion 134 of the gutter 131 mounted to the crucible 11 into the opening portion 31A of the injection sleeve 31 by a predetermined angle (arbitrary angle).
  • a predetermined angle arbitrary angle
  • the semi-solid metal at inside of the crucible 11 is injected from the front end portion 134 of the gutter 131 to a side in a direction of advancing the plunger 32, that is, a side in an arrow mark A direction in Fig.5 more than at a position formed with the opening portion 31A at inside of the injection sleeve 31.
  • the semi-solid metal supplied to inside of the injection sleeve 31 is extruded in the arrow mark A direction in Fig.5 by the plunger 32 and is injected to a die, not illustrated.
  • the cooling block 121 after having been pulled up from the molten metal is first dipped into a cooling layer, not illustrated, to carry out a cooling treatment.
  • the cooling block 121 is subjected to an air blow treatment, removed of a solidified object of the semi-solid metal adhered to a surface of the cooling block 121, thereafter, coated with a ceramic material on the surface and is subjected to a drying treatment by drying means, not illustrated.
  • a drying treatment by drying means, not illustrated.
  • the invention is not limited to the above-described embodiment but the invention includes a modification, an improvement or the like within a range of capable of achieving the object of the invention.
  • a crucible 11A is constituted by a shape of a parallelepiped, cooling blocks 121A and 121B and rotation drive sources 122A and 122B of a stirrer 12A may reciprocally be moved in a longitudinal direction (arrow mark C direction in Fig.6 of the crucible 11A by a moving mechanism 125A to thereby cool and stir the molten metal at inside of the crucible 11A.
  • the rotation drive source 122A is connected to a base end of the cooling block 121A by way of a rotating shaft 123A and a coupler 124A to drive to rotate the cooling block 121A centering on the rotating shaft 123A.
  • the coupler 124A made of a ceramic is provided to the rotation drive source 122A to be able to remove the cooling block 121A.
  • the rotation drive source 122B is connected to a base end of the cooling block 121B by way of a rotating shaft 123B and a coupler 124B made of a ceramic to drive to rotate the cooling block 121B centering on the rotating shaft 123B.
  • the coupler 124B made of a ceramic is provided to the rotation drive source 122B to be able to remove the cooling block 121B.
  • the moving mechanism 125A moves the cooling blocks 121A and 121B and the rotation drive sources 122A and 122B in the vertical direction and reciprocally moves the cooling blocks 121A and 121B and the rotation drive sources 122A and 122B in the arrow mark C direction in Fig.6 .
  • a cooling block 121C and a rotation drive source 122C of a stirrer 12B may reciprocally be moved in a vertical direction (arrow mark D direction in Fig. 7 ) by a moving mechanism 125B and the molten metal at inside of the crucible 119 may be cooled and stirred.
  • the rotation drive source 122C is connected to a base end of the cooling block 121C by way of a rotating shaft 123C and a coupler 124C made of a ceramic to drive to rotate the cooling block 121C centering on the shaft 123C.
  • the coupler 124C made of a ceramic is provided to the rotation drive source 122C to be able to remove the cooling block 121C centering on the rotating shaft 123C.
  • the moving mechanism 125B reciprocally moves the cooling block 121C and the rotation drive source 122C in the arrow mark D direction of Fig.7 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (5)

  1. Zuführ-Verfahren für ein halb-festes Metall zum Zuführen des halb-festen Metalls an ein Formgebungs-Gerät (30),
    wobei das Formgebungs-Gerät eine Injektions-Hülse (31), welche mit einem Öffnungs-Bereich (31A) ausgebildet ist, und einen Kolben (32) aufweist, welcher progressiv/regressiv an einem inneren Bereich der Injektions-Hülse (31) angeordnet ist, das Zuführ-Verfahren aufweisend:
    einen ersten Schritt der Herstellung des halb-festen Metalls aus einem geschmolzenen Metall an einem inneren Bereich eines Tiegels (11, 11A, 11B); und
    einen zweiten Schritt des Zuführens des halb-festen Metalls von dem Tiegel (11, 11A, 11B) an den inneren Bereich der Injektions-Hülse (31) durch Einfügen einer Abflussrinne (131), welche an einem vorderen Ende des Tiegels (11, 11A, 11B) angeordnet ist, in den Öffnungs-Bereich (31A) der Injektions-Hülse (31) mit einem beliebigen Winkel und durch Zuführen des halb-festen Metalls von einem vorderen Ende (134) der Abflussrinne (131) ;
    wobei in dem zweiten Schritt das halb-feste Metall zu einer Seite in eine Richtung zugeführt wird, in der der Kolben (32) mehr als an dem Öffnungs-Bereich (31A) vorgerückt wird.
  2. Zuführ-Verfahren gemäß Anspruch 1,
    wobei die Abflussrinne (131) ausgebildet ist um an dem Tiegel (11, 11A, 11B) anbringbar und von dem Tiegel (11, 11A, 11B) abtrennbar zu sein.
  3. Zuführ-Gerät (10) eines halb-festen Metalls zum Zuführen des halb-festen Metalls an ein Formgebungs-Gerät (30) mit eine Injektions-Hülse (31), welche mit einem Öffnungs-Bereich (31A) ausgebildet ist, und einen Kolben (32), welcher progressiv/regressiv an einem inneren Bereich der Injektions-Hülse (31) angeordnet ist, das Zuführ-Gerät (10) aufweisend:
    einen Tiegel (11, 11A, 11B) zum Enthalten des halb-festen Metalls;
    eine Abflussrinne (131), welche fähig ist an ein vorderes Ende des Tiegels (11, 11A, 11B) verbunden zu werden;
    einen Trag-Arm (13) zum Greifen und Bewegen des Tiegels (11, 11A, 11B); und
    ein Steuer-Gerät (14) zum Steuern des Trag-Armes (13);
    wobei das Steuer-Gerät (14) fähig ist ein vorderes Ende (134) der Abflussrinne (131) in den Öffnungs-Bereich (31A) der Injektions-Hülse (31) mit einem beliebigen Winkel einzuführen und fähig ist, das halb-feste Metall von dem vorderen Ende (134) der Abflussrinne (131) in die Injektions-Hülse (31) an einer Seite in eine Richtung zu liefern, in der der Kolben (32) mehr als an dem Öffnungs-Bereich (31A) vorgerückt wird.
  4. Zuführ-Gerät (10) gemäß Anspruch 3,
    wobei der Trag-Arm (13) eine Hand (136) zum Greifen des Tiegels (11) umfasst, wobei die Abflussrinne (131) mit dem Tiegel (11) verbunden ist, wenn der Tiegel (11) von der Hand (136) gegriffen wird.
  5. Zuführ-Gerät (10) gemäß Anspruch 4,
    wobei die Abflussrinne (131) durch aus einer Nut-Form besteht.
EP08152690A 2007-03-16 2008-03-13 Verfahren und Vorrichtung für die Zufuhr eines halbfesten Metalls Expired - Fee Related EP1970144B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007068468A JP2008229633A (ja) 2007-03-16 2007-03-16 半凝固金属の供給方法および供給装置

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EP1970144A1 EP1970144A1 (de) 2008-09-17
EP1970144B1 true EP1970144B1 (de) 2010-05-12

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US (1) US20080223540A1 (de)
EP (1) EP1970144B1 (de)
JP (1) JP2008229633A (de)
CN (1) CN101264510A (de)
DE (1) DE602008001182D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110180228A1 (en) * 2010-01-22 2011-07-28 Honda Motor Co., Ltd. Casting method and casting apparatus
JP5919360B1 (ja) * 2014-11-18 2016-05-18 有限会社ティミス 自動鋳造装置における半凝固スラリ投入機構
KR101811860B1 (ko) * 2016-05-17 2017-12-22 (주)디티알 반응고 슬러리 생성장치 및 고압다이캐스팅 방법
CN109986045B (zh) * 2017-12-29 2024-09-20 有研工程技术研究院有限公司 一种用于半固态压铸成形的开口式料筒及热平衡温控方法
SE543156C2 (en) * 2018-12-21 2020-10-13 Pa Invest Ab Stirring device for a semi-solid metal slurry and method and system for producing a semi-solid metal slurry using such a stirring device

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JPH07100634A (ja) * 1993-10-05 1995-04-18 Nippon Steel Corp 鋳銑機注入樋の滓掻き出し装置
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JPH10296418A (ja) * 1997-04-22 1998-11-10 Ube Ind Ltd 半溶融金属の成形装置
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JP2006334665A (ja) 2005-05-06 2006-12-14 Tokyo Rika Mfg Co Ltd 半凝固金属スラリー材料供給装置及び有底容器、供給方法並びに成形装置及び成形方法

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Publication number Publication date
CN101264510A (zh) 2008-09-17
JP2008229633A (ja) 2008-10-02
EP1970144A1 (de) 2008-09-17
US20080223540A1 (en) 2008-09-18
DE602008001182D1 (de) 2010-06-24

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