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EP1002601B1 - Machine à couler sous pression en chambre chaude - Google Patents

Machine à couler sous pression en chambre chaude Download PDF

Info

Publication number
EP1002601B1
EP1002601B1 EP99120823A EP99120823A EP1002601B1 EP 1002601 B1 EP1002601 B1 EP 1002601B1 EP 99120823 A EP99120823 A EP 99120823A EP 99120823 A EP99120823 A EP 99120823A EP 1002601 B1 EP1002601 B1 EP 1002601B1
Authority
EP
European Patent Office
Prior art keywords
hot
chamber pressure
flat tube
neck
casting vessel
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 - Lifetime
Application number
EP99120823A
Other languages
German (de)
English (en)
Other versions
EP1002601A2 (fr
EP1002601A3 (fr
Inventor
Roland Fink
Ulrich Schrägle
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.)
Oskar Frech GmbH and Co KG
Original Assignee
Oskar Frech GmbH and Co KG
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 Oskar Frech GmbH and Co KG filed Critical Oskar Frech GmbH and Co KG
Publication of EP1002601A2 publication Critical patent/EP1002601A2/fr
Publication of EP1002601A3 publication Critical patent/EP1002601A3/fr
Application granted granted Critical
Publication of EP1002601B1 publication Critical patent/EP1002601B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2038—Heating, cooling or lubricating the injection unit

Definitions

  • the invention relates to a hot chamber die casting machine Processing of magnesium melts, with a casting container with a riser hole, with a conical mouthpiece and with a nozzle attached to the mouthpiece, as well as with a induction heating device operating at medium frequency or with one at the lower limit of the radio frequency Frequency is operated, with a ring inductor in the Level the cover of the crucible for the melt around the neck of the casting container is laid.
  • a hot chamber die casting machine of this type is from DE 195 43 805 A1 known. There you have to have a heater in the area to reach the neck of the pouring can provided two halves built ring inductor, which then but, since the neck of the pouring tank - at least in the built-in Condition of the pouring container - very difficult to access is assembled and disassembled in a complex manner must become. It usually becomes necessary, too loosen the pouring container to make his neck more accessible do.
  • the present invention is based on the object an easy to install solution for the ring inductor in the area of the neck of the pouring container, which is also so configurable that the ring inductor can be cooled with air is.
  • this task is solved of the type mentioned that the ring inductor made of a flexible tube made of elastic Material that forms a one-piece ring, which is open at one point and there with connections for energy and is provided for cooling air flowing through.
  • the tube can be a flat tube be that around a parallel to its larger side faces extending axis is bent. It can be done in another Embodiment of the invention one of the larger side surfaces of the flat tube to be connected to a carrier tape, wherein Carrier tape and flat tube with an insulating fabric for thermal and electrical insulation can be surrounded.
  • the insulating fabric can consist of a band around the flat tube and the carrier band is wrapped around.
  • Fig. 1 is part of a hot chamber die casting machine shown that is used to process magnesium.
  • the liquid magnesium is at temperatures from approx. 630 ° C to 680 ° C within the not shown Crucible 1.
  • this crucible 1 protrudes through a cover 2.
  • Pouring container 3 in, a riser 4 with a cone-like trained mouthpiece 5 has.
  • the casting tank 3 there is also a casting piston, not shown, of the piston rod 6 in a known manner is introduced into the top of the casting cylinder 7, which consists of the crucible 1 with the amount of liquid magnesium to be poured fills before the piston closes the filler opening Movement completes and the molten metal through the riser 4 pushes up.
  • a nozzle is inserted into the mouthpiece 5 of the casting container 3 8, the one with her mouthpiece 9 into the sprue area Form 10 is sufficient, which is only indicated schematically.
  • a sleeve-shaped inductive heating element 12 is pushed on.
  • Two further sleeve-shaped inductive radiators 13 and 14 are on the central area of the nozzle 8 or on the area of the mouthpiece 9 of the nozzle 8 pushed on. It can do that happen that the sleeve body 12 before assembly the nozzle 8 is pushed on, that then the nozzle in its cone-like Port 5 is used and then the two Sleeve bodies 13 and 14 are pushed onto the nozzle.
  • a separate attachment is usually not necessary because the sleeve body 13 and 14 because of the light Inclination of the nozzle 8 are held by themselves and the Sleeve body on the also slightly sloping neck 11 also holds without separate fasteners. All radiators 12, 13 and 14 can, since there is no attachment, very easily Hand shifted to ensure the optimal temperature to get in the appropriate areas.
  • the sleeve body 12 is placed on the approach 11 that he protrudes the front end of it.
  • the sleeve body 12 It also towers over a nut 15, which can be removed later the nozzle 8 is screwed onto it, and a monitoring device, on the inside of the sleeve body 12 in the form of a ring provided with a contact loop 16 is arranged.
  • a monitoring device on the inside of the sleeve body 12 in the form of a ring provided with a contact loop 16 is arranged.
  • the monitoring device 16 serves for efflorescence of magnesium in the cavity 18 between the sleeve body 12 and the nozzle 8 to detect, for example, by a leak between the neck 11 and the nozzle 8 or also due to leaks in the area of the neck 19 of the casting container 3 and through this into the area inside the sleeve body 12 magnesium can occur.
  • a ring inductor 20 put on and also in the area of the crucible cover 2, which is also opposite in a manner not shown the casting container 3 is sealed.
  • Fig. 2 shows that the ring inductor 20 with a flat tube 21 is equipped with one of its larger side surfaces is soldered to a metallic carrier tape 22.
  • Either the flat tube 21 and the carrier tape 22 exist made of a magnetically active material, for example made of a copper alloy or stainless steel.
  • the carrier tape 22 and the flat tube 21 are of a thermal and electrically effective insulation 23 surround the in the embodiment from a ribbon-shaped insulating fabric 23a, which is around the flat tube 21 and the carrier tape 22 is wound helically.
  • the flat tube 21 and that Carrier tape 22 are parallel to the larger sides of the flat tube 21 extending axis 30 bent in the attached State, see Fig. 3 and 4 - with the central axis of the neck 19 of the casting container 13 coincides.
  • Fig. 3 shows that the ring inductor 20 by one Section of the neck 19 of the casting container 3 is laid around in such a way that it fits one of the larger side surfaces of the Flat tube 21 with that which is not with the carrier tape 22 is connected to the outer surface of the neck 19 of the Casting container 3 is present.
  • Fig. 4 also shows that the ring inductor 20 of the flat tube 21 and the carrier tube 22 as a one-piece Ring is formed, but which is open at point 24 and there each with connections 25 and 25a for the feed and Dissipation of the electrical energy, in the embodiment one Induction voltage with medium frequency or with one the lower limit of the radio frequency is.
  • the connections 25 and 25a also point in not shown in each case a connection piece for the supply of cooling air through the flat tube 21st can flow for the purpose of cooling and at an approximately diametrical the point opposite the connections 25 and 25a leave the flat tube again through an exhaust port 26 can.
  • the cooling air is therefore - starting from the connecting piece 25 and 25a - each about half of the ring inductor 20 passed around and then passes through the nozzle 26th out again.
  • the flat tube 21 and the carrier tape 22 are made as before was already hinted at from an elastic material that a bending of the ring inductor 20 into its position 20 ' allowed, which is indicated by dashed lines in FIG. 4.
  • the Elasticity of both the flat tube 21 and the carrier tape 22 must therefore be large enough to accommodate such a bend to allow. It has been shown that in this regard no difficulties. If the ring inductor 20 in its position 20 'according to Fig. 4 is bent, then it leaves in a very simple manner laterally on the neck 19 of the casting container postpone or remove from it. Due to its elasticity it takes the solid 4 position when the spreading forces are eliminated.
  • the final attachment can then be very simple, for example with a fastening screw.
  • This thus designed ring inductor can then be used with the same Energy as well as the inductors 12 and 13 and 14 supplied and are connected to the same cooling air source. It has the great advantage of very simple assembly and disassembly, which is therefore easy too can be carried out in the installed state of the casting tank.
  • connections 25 and 25a in the bent state i.e. in their position 25 'and 25a ', have a distance a from one another which corresponds to the diameter d of the neck 19 of the casting container 3 corresponds to the To be able to carry out assembly or disassembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Induction Heating (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (6)

  1. Machine à couler sous pression à chambre de traitement thermique pour le traitement de coulées de magnésium, avec un récipient de coulée (3) avec un alésage vertical (4), avec un embout conique (5) et une buse (8) fixée sur l'embout, ainsi qu'un dispositif de chauffage inductif fonctionnant avec une fréquence moyenne ou à des fréquences situées à la limite inférieure des hautes fréquences, une inductance annulaire (20), autour du col du récipient de coulée (3), se trouvant dans le plan du couvercle (2) du creuset (1) pour le métal en fusion, caractérisée en ce que l'inductance annulaire (20) est constituée d'un tube flexible (21) en matériau élastique, qui constitue un anneau d'une seule pièce, qui est ouvert à un endroit (24) et muni à cet endroit de raccords (25,25a) pour l'énergie et l'air de refroidissement qui s'écoule.
  2. Machine à couler sous pression à chambre de traitement thermique selon la revendication 1, caractérisée en ce que l'élasticité de l'anneau tubulaire (20) est suffisante pour que, au niveau de l'endroit ouvert (24), il puisse être plié au moins de la cote (a) du diamètre (d) du récipient de coulée (3) au niveau du couvercle du creuset (2) et qu'on puisse le faire coulisser latéralement sur le col (19) du récipient de coulée (3).
  3. Machine à couler sous pression à chambre de traitement thermique selon la revendication 1, caractérisée en ce que le tube est un tube plat (21) qui est plié autour d'un axe (30) parallèle à ses surfaces latérales les plus importantes.
  4. Machine à couler sous pression à chambre de traitement thermique selon la revendication 3, caractérisée en ce qu'une des surfaces latérales les plus importantes du tube plat (21) est reliée à une bande support (22).
  5. Machine à couler sous pression à chambre de traitement thermique selon la revendication 4, caractérisée en ce que la bande support (22) et le tube plat (21) sont entourés d'un tissu isolant (23) pour l'isolation thermique et électrique.
  6. Machine à couler sous pression à chambre de traitement thermique selon la revendication 5, caractérisée en ce que le tissu isolant est constitué d'une bande (23a) enroulée de manière hélicoidale autour du tube plat (21) et de la bande support (22).
EP99120823A 1998-11-18 1999-10-22 Machine à couler sous pression en chambre chaude Expired - Lifetime EP1002601B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853189 1998-11-18
DE19853189A DE19853189C1 (de) 1998-11-18 1998-11-18 Heizeinrichtung für den Hals eines Gießbehälters, insbesondere für eine Warmkammer-Druckgießmaschine

Publications (3)

Publication Number Publication Date
EP1002601A2 EP1002601A2 (fr) 2000-05-24
EP1002601A3 EP1002601A3 (fr) 2001-03-07
EP1002601B1 true EP1002601B1 (fr) 2004-04-14

Family

ID=7888222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120823A Expired - Lifetime EP1002601B1 (fr) 1998-11-18 1999-10-22 Machine à couler sous pression en chambre chaude

Country Status (8)

Country Link
US (1) US6435260B1 (fr)
EP (1) EP1002601B1 (fr)
JP (1) JP2000153351A (fr)
AT (1) ATE264151T1 (fr)
CZ (1) CZ295241B6 (fr)
DE (2) DE19853189C1 (fr)
ES (1) ES2215354T3 (fr)
PL (1) PL191429B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036987A2 (fr) * 2008-09-28 2010-04-01 Inductotherm Corp. Bobine d’induction ouvrante et ensemble inducteur à blindage électromagnétique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755884A (en) * 1971-11-19 1973-09-04 Olin Corp Process for scarfing weld beads
US3777097A (en) * 1973-03-08 1973-12-04 Park Ohio Industries Inc Induction heating device for ring gears
JPS6151794A (ja) * 1984-08-20 1986-03-14 電気興業株式会社 誘導加熱コイル
FR2613647B1 (fr) * 1987-04-13 1990-11-16 Alsthom Dispositif de brassage electromagnetique de metal liquide pour ligne de coulee continue
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
US5872352A (en) * 1995-03-22 1999-02-16 Honda Ginken Kogyo Kabushiki Kaisha Swingable induction heating chamber for melting ingot for metal casting
DE19531161C2 (de) * 1995-08-24 1999-05-20 Frech Oskar Gmbh & Co Warmkammer-Druckgießmaschine
DE19543805A1 (de) 1995-08-24 1997-05-28 Frech Oskar Gmbh & Co Warmkammer-Druckgießmaschine
DE19631161A1 (de) 1996-08-01 1998-02-12 Bergmann Thorald Flugzeit-Flugzeit-Massenspektrometer mit differentiell gepumpter Kollisionszelle

Also Published As

Publication number Publication date
DE59909162D1 (de) 2004-05-19
ATE264151T1 (de) 2004-04-15
EP1002601A2 (fr) 2000-05-24
CZ295241B6 (cs) 2005-06-15
EP1002601A3 (fr) 2001-03-07
ES2215354T3 (es) 2004-10-01
CZ9904098A3 (en) 2001-05-16
DE19853189C1 (de) 2000-04-13
JP2000153351A (ja) 2000-06-06
PL336608A1 (en) 2000-05-22
PL191429B1 (pl) 2006-05-31
US6435260B1 (en) 2002-08-20

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