EP0269660A1 - Procede de coulee de metal. - Google Patents

Procede de coulee de metal.

Info

Publication number
EP0269660A1
EP0269660A1 EP87903238A EP87903238A EP0269660A1 EP 0269660 A1 EP0269660 A1 EP 0269660A1 EP 87903238 A EP87903238 A EP 87903238A EP 87903238 A EP87903238 A EP 87903238A EP 0269660 A1 EP0269660 A1 EP 0269660A1
Authority
EP
European Patent Office
Prior art keywords
mold
pouring
casting
molten metal
molding material
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.)
Granted
Application number
EP87903238A
Other languages
German (de)
English (en)
Other versions
EP0269660B1 (fr
Inventor
Max Riethmann
Herbert Schilling
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.)
Georg Fischer AG
Eisenwerk Bruehl GmbH
Original Assignee
Georg Fischer AG
Eisenwerk Bruehl GmbH
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 Georg Fischer AG, Eisenwerk Bruehl GmbH filed Critical Georg Fischer AG
Priority to AT87903238T priority Critical patent/ATE56168T1/de
Publication of EP0269660A1 publication Critical patent/EP0269660A1/fr
Application granted granted Critical
Publication of EP0269660B1 publication Critical patent/EP0269660B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners

Definitions

  • the invention relates to a method for casting molten metal, by means of which a casting mold with a molding material contained therein and a pouring opening formed in the molding material is filled from a at least one pouring stone with a closable bottom pouring melt container.
  • the separating body can be designed, for example, in various ways, for example as a funnel-shaped body, which rests on the molding material in a corresponding recess and which opens into the casting channel of the casting mold with its lower funnel end.
  • the separating body can also be cup-shaped or of another suitable type and can be arranged in a corresponding recess.
  • the present invention is based on the task of simplifying this casting process with increased output.
  • Fig. 1 shows a vertical section through the schematically illustrated device for casting in a position before filling the mold
  • FIG. 2 shows the device according to FIG. 1 in the position after the mold has been filled.
  • the melting container 1 has a pouring stone 2 on the bottom with the outlet bore 3 extending therethrough, which forms the closable bottom spout 5 with the stopper rod 4, which can be moved up and down by drive means not shown in the drawing .
  • the pouring stone 2 has a flat or profiled underside 6 at its end projecting downward above the melt container bottom.
  • the surface (14) of the depression (13) can preferably be profiled or slightly rising towards the outside.
  • the casting mold 7 contains molding material 8, in which a mold cavity 9 to be filled with molten metal is formed.
  • the pouring opening 10 at the top of the mold is connected to the mold cavity 9 via the pouring channel 11.
  • the molding material 8 is more strongly consolidated in an area 12 around the pouring opening 10. This stronger Ver ⁇ is preferably brought about by increased compression of the 'molding material attachment.
  • the vor ⁇ preferably by milling or molding is prepared, and 'having a surface 14 at the bottom of the well, which cast stone during casting to the underside 6 of the Aus ⁇ 2 in Surface contact is brought.
  • the cleanly machined or shaped bottom of this depression 13 enables a perfect seal between the mold 7, 8 and the bottom surface 6 of the pouring stone 2.
  • the depression takes back in the outlet bore 3 after the stopper 4 has been closed permanent melt on. It also serves to take up the trailing iron.
  • the cross section of the outlet bore 3 is larger than the cross section of the pouring channel 11 in order to ensure that the entire cross section of the pouring channel 11 is full and to ensure that the outlet bore 3 is not exactly connected to the pouring channel 11 with axially aligned axes, i.e. one slight lateral displacement, has no adverse effect on the filling process.
  • the casting mold 7 is placed on a base plate 15 which rests on a roller conveyor 16. Means (not shown in the drawing) are used for the movement of the melt container 1 in the vertical direction, so that it can be pressed against the casting mold 7 with an adjustable force. Of course, only the other way round The casting mold 7 must be supported so that it can move in the vertical direction and can be pressed against the melt container 1 with an adjustable pressure. Contact during the filling process is maintained with controlled force. This force is dimensioned such that the resulting surface pressure is less than the dimensional stability so that the shape is not damaged. Because of this controlled force, the underside 6 of the pouring stone 2 and the surface 14 of the depression 13 are completely pressed tightly against one another.
  • the casting mold is filled with the molten metal liquid pressure which decreases until the end of the casting time.
  • a controlled lowering of the molten metal level can be by means bring the plug rod 4.
  • the bottom spout 5 is at least partially closed at a point in time shortly before the mold cavity 9 is completely filled, in order thereby to reduce the pressure surge caused by the molten metal in motion.
  • the volume of the outlet bore 3 in the pouring stone 2 is relatively small and the filling of the mold cavity 9 in the casting mold 7 can therefore be carried out by completely closing the bottom pouring spout 5 in such a way that the pouring channel 11 and the depression 13, which after closing Take up the amount of metal melt still present in the outlet bore 3 and the system acts like a feeder, the metal melt reflowing due to the shrinkage that occurs. It can be done this way achieve that there is no residual amount of molten metal above the pouring channel 11, which means that, when compared with previously known casting methods, a smaller amount of metal melt, for example with pouring funnels, is required, which very quickly leads to large savings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

La matériau (8) du moule (7) est compacté dans une région (12) entourant l'ouverture de la descente de coulée (10) et on y ménage un enfoncement (13) à surface plane (14). La surface plane ou profilée (6) du bec (2) situé au fond de la lingotière (1) est mise en contact, à une pression réglable, avec la surface plane (14) de l'enfoncement (13). Le moule (7) est rempli de métal en fusion à une pression qui diminue constamment. Le tuyau de coulée (5) de la lingotière (1) est bouché peu avant le remplissage complet du moule pour que le volume de métal se trouvant à l'intérieur (3) du tuyau en-dessous du bouchon qui ferme le tuyau (5) puisse s'écouler dans le moule (7). On évite ainsi que le métal se trouvant au-dessus de la descente de coulée (11) ne se solidifie, ce qui améliore la rentabilité de la coulée par une diminution de métal en fusion utilisé.
EP87903238A 1986-06-17 1987-06-09 Procede de coulee de metal Expired - Lifetime EP0269660B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87903238T ATE56168T1 (de) 1986-06-17 1987-06-09 Verfahren zum giessen von metallschmelze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2442/86A CH670058A5 (fr) 1986-06-17 1986-06-17
CH2442/86 1986-06-17

Publications (2)

Publication Number Publication Date
EP0269660A1 true EP0269660A1 (fr) 1988-06-08
EP0269660B1 EP0269660B1 (fr) 1990-09-05

Family

ID=4233915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87903238A Expired - Lifetime EP0269660B1 (fr) 1986-06-17 1987-06-09 Procede de coulee de metal

Country Status (10)

Country Link
US (1) US4832111A (fr)
EP (1) EP0269660B1 (fr)
JP (1) JPH01500735A (fr)
BR (1) BR8707366A (fr)
CA (1) CA1287470C (fr)
CH (1) CH670058A5 (fr)
DD (1) DD257217A5 (fr)
ES (1) ES2006506A6 (fr)
MX (1) MX171914B (fr)
WO (1) WO1987007856A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027662C2 (de) * 1990-08-31 1994-02-10 Rexroth Mannesmann Gmbh Vergießofen
DE19623720B4 (de) * 1996-06-14 2007-10-18 Vaw Alucast Gmbh Verfahren und Vorrichtung zum Steuern der Füllmenge beim Gießen, insbesondere von Aluminiumgußteilen
US5879721A (en) * 1996-08-28 1999-03-09 Ebaa Iron, Inc. Movable pouring basin
AU6918698A (en) * 1997-04-07 1998-10-30 Georg Fischer Disa A/S Method of ascending casting in casting cavities, and casting mould or mould partfor use when carrying out the method
DE19962471A1 (de) * 1999-12-22 2001-07-05 Fischer Georg Automobilguss Vorrichtung zum Giessen einer Metallschmelze
US20020044549A1 (en) * 2000-06-12 2002-04-18 Per Johansson Efficient scatternet forming
DE102005010838B4 (de) * 2005-03-07 2007-06-06 Hydro Aluminium Alucast Gmbh Gießform, Vorrichtung und Verfahren zum Vergießen von Metallschmelze

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL51296C (fr) * 1938-12-07
US3256571A (en) * 1964-05-11 1966-06-21 Pettibone Mulliken Corp Pouring cup, sprue and riser pattern mounting for use in foundry mold forming machine
CH616609A5 (fr) * 1977-03-23 1980-04-15 Fischer Ag Georg
DE2823998A1 (de) * 1978-06-01 1979-12-06 Friedrich Carl Huette Gmbh Sta Verfahren zur leitung eines fluessigen metallstromes und giessform

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8707856A1 *

Also Published As

Publication number Publication date
WO1987007856A1 (fr) 1987-12-30
DD257217A5 (de) 1988-06-08
CA1287470C (fr) 1991-08-13
US4832111A (en) 1989-05-23
BR8707366A (pt) 1988-09-13
CH670058A5 (fr) 1989-05-12
ES2006506A6 (es) 1989-05-01
MX171914B (es) 1993-11-24
JPH01500735A (ja) 1989-03-16
EP0269660B1 (fr) 1990-09-05

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