DE3122597A1 - "FOOD FOR A CAST PIECE" - Google Patents

"FOOD FOR A CAST PIECE"

Info

Publication number
DE3122597A1
DE3122597A1 DE19813122597 DE3122597A DE3122597A1 DE 3122597 A1 DE3122597 A1 DE 3122597A1 DE 19813122597 DE19813122597 DE 19813122597 DE 3122597 A DE3122597 A DE 3122597A DE 3122597 A1 DE3122597 A1 DE 3122597A1
Authority
DE
Germany
Prior art keywords
feeder
casting
hollow cylinder
suction
volume
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
DE19813122597
Other languages
German (de)
Other versions
DE3122597C2 (en
Inventor
Manfred 8770 Lohr/Main Scherer
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.)
Bosch Rexroth AG
Original Assignee
Mannesmann Rexroth AG
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 Mannesmann Rexroth AG filed Critical Mannesmann Rexroth AG
Priority to DE19813122597 priority Critical patent/DE3122597A1/en
Priority to EP82103616A priority patent/EP0066709B1/en
Priority to AT82103616T priority patent/ATE25209T1/en
Publication of DE3122597A1 publication Critical patent/DE3122597A1/en
Application granted granted Critical
Publication of DE3122597C2 publication Critical patent/DE3122597C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Confectionery (AREA)
  • Cookers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

1. Feeder for a casting, in particular of cast-iron, with a body (3) in the form of a hollow cylinder consisting of an exothermic heating material, which keeps the substance located in the feeder liquid until the suction of casting material through the region of the casting to be fed is terminated, in which case the volume of the feeder corresponds to the magnitude of the suction volume plus a maximum safety amount of 30% of the suction volume, characterised in that adjoining the body (3) of the feeder in the form of a hollow cylinder, on the side remote from the casting is a receiving chamber (8) which is enlarged with respect to the cavity (4) of this body (3), which chamber (8) is surrounded on all sides by an exothermic heating material, which to a large extent prevents cooling of the casting material located therein, whereas the body (3) in the form of a hollow cylinder serves for heating the casting material passing through this body during the suction operation.

Description

DIPL.-ING. H. FINK PATENTANWALT - D 7300 ESSLINGEN BEI STUTTGART . HINDENBURGSTRASSEDIPL.-ING. H. FINK PATENTANWALT - D 7300 ESSLINGEN NEAR STUTTGART. HINDENBURGSTRASSE PotOTtanwolt FINK ■ D PotOTtanwolt FINK ■ D 73ODitti'ingtn 73ODitti'ingtn (Nnekor), Hlndtnhurgitrnfte44(Nnekor), Hlndtnhurgitrnfte44

- 3 - 18. März 1981 Sc P 6670- 3 - March 18, 1981 Sc P 6670

121.61b F121.61b F

G.L. Rexroth GmbH, Jahnstrasse, 8770 Lohr/Main Speiser für Gußstück GL Rexroth GmbH, Jahnstrasse, 8770 Lohr / Main Speiser for casting

Die Erfindung bezieht sich auf einen Speiser entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a feeder accordingly the preamble of claim 1.

Die Anwendung des bekannten Speisers der vorgenannten Art hat sich insbesondere bei schweren Gußstücken als nachteilig erwiesen, da der Speiser extrem hoch ausgebildet werden muß und daher sehr aufwendig ist (DE-PS 2o 10 337).The application of the known feeder of the aforementioned type has proven particularly in the case of heavy castings proved disadvantageous because the feeder must be made extremely high and therefore very expensive (DE-PS 2o 10 337).

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen auch bei schweren Gußstücken brauchbaren Speiser zu schaffen. Diese Aufgabe wird durch die Merkmale im Kennzeichnungsteil des Anspruches 1 erfindungsgemäß gelöst. Die Anwendung eines erweiterten .Aufnahmeraumes im Anschluß an den Hohlraum des dem Gußstück unmittelbar benachbarten zylinderartigen Körpers erlaubt die Ausbildung eines verhältnismäßig niederen Speisers. Der erweiterte Aufnahmeraum nimmt zusammen mit dem hohlzylinderartigen Körper den Nachsaugbedarf des Gußstückes einschließlich des üblichen Sicherheitszuschlages auf. Der Aufnahmeraum ist mit exothermer Heizmasse umgeben, so daß die Wärme nicht in den denThe object of the present invention is to provide a feeder that can also be used for heavy castings to accomplish. This object is achieved according to the invention by the features in the characterizing part of claim 1 solved. The use of an expanded. Aufnahmeraumes in connection with the cavity of the casting directly adjacent cylinder-like body allows the formation of a relatively low feeder. Of the The extended receiving space, together with the hollow cylinder-like body, takes the need for suction of the casting including the usual safety surcharge. The recording room is exothermic Surrounding heating mass, so that the heat is not in the

- 4 - 18. März 1981 Sc P 6670 121.bi6 F- 4 - March 18, 1981 Sc P 6670 121.bi6 F

Speiser umgebenden Formstoff abfließen kann. Das vom erstarrenden Gußstück nachgesaugte Gießgut heizt sich im Bereich des einen verhältnismäßig kleinen Querschnitt aufweisenden hohlzylinderartigen Körpers auf.Molding material surrounding the feeder can flow off. The cast material sucked up by the solidifying casting heats up in the area of the relatively small cross-section having a hollow cylinder-like body.

Die Merkmale des Anspruches 2 betreffen eine bevorzugte Ausbildung des Speisers.The features of claim 2 relate to a preferred embodiment of the feeder.

Weitere Vorteile ergeben sich aus der Beschreibung und der Zeichnung. In dieser ist ein Speiser als Ausführungsbeispiel des Gegenstandes der Erfindung im Längsschnitt schematisch dargestellt.Further advantages emerge from the description and the drawing. In this is a feeder as an exemplary embodiment of the subject matter of the invention shown schematically in longitudinal section.

Ein Gußstück 1 ist in eine Sandform 2 eingeformt. Auf die Sandform 2 ist ein hohlzylinderartiger Körper 3 aus exothermer Heizmasse aufgesetzt, der von einer wärmeisolierenden Hülle aus Asbestpapier umgeben sein kann und an seiner Unterseite kegelförmig ausgebildet ist. Der hohlzylinderartige Körper umgibt einen zylinderförmigen Raum 4.A casting 1 is molded into a sand mold 2. A hollow cylinder-like body 3 is made on the sand mold 2 applied exothermic heating mass, which can be surrounded by a heat-insulating cover made of asbestos paper and is conical on its underside. The hollow cylinder-like body surrounds a cylindrical one Room 4.

Auf den hohlzylinderartigen Körper 3 ist ein topfförmiger Körper 5 aufgesetzt, der in seinem Boden eine Durchgangsbohrung 6 hat, deren Querschnitt dem Querschnitt des zylinderförmigen Raumes 4 im" hohlzylinderartigen Körper 3 entspricht. Der topfförmige Körper 5 ist durch einen ebenen Deckel 7 abgedeckt, der in den Rand des topfförmigen Körpers 5 eingelassen ist. Der topfförmige Körper 5 und der Deckel 7 bestehen in gleicher Weise, wie der hohlzylinderartige Körper 3 aus einer exothermen Heizmasse. Der topfförmige Körper 5 hat einen wesentlich größeren lichten Querschnitt, als der hohlzylinderartige Körper 3. Die Querschnitte verhalten sich mindestens wie 4 : 1.On the hollow cylinder-like body 3 is a cup-shaped Body 5 placed, which has a through hole 6 in its bottom, the cross section of which corresponds to the cross section of the cylindrical space 4 in the "hollow cylinder-like Body 3 corresponds. The cup-shaped body 5 is covered by a flat cover 7, which is in the Edge of the cup-shaped body 5 is embedded. The cup-shaped body 5 and the lid 7 consist in the same way as the hollow cylinder-like body 3 made of an exothermic heating mass. The cup-shaped body 5 has a much larger clear cross-section than the hollow cylinder-like body 3. The cross-sections behave at least like 4: 1.

- 5 - 18. März 1981 Sc P 6670- 5 - March 18, 1981 Sc P 6670

121.116 F121,116 F

Der Aufnahmeraum 8 im topfförmigen Körper 5 dient im wesentlichen zur Aufnahme des Nachsaugebedarf des Gußstückes 1 einschließlich des üblichen Sicherheitszuschlages. Die Wanddicke des topfförmigen Körpers 5 und des Deckels 7 ist jeweils so gewählt, daß eine Abkühlung des im Aufnahmeraum 8 befindlichen Gießgutes weitgehend vermieden wird, wobei der hohlzylinderartige Körper 3 so ausgebildet ist, daß das durch ihn während des Nachsaugevorganges hindurchtretende Gießgut aufgeheizt wird.The receiving space 8 in the cup-shaped body 5 is used in essential for taking up the need for subsequent suction of the casting 1 including the usual safety allowance. The wall thickness of the cup-shaped body 5 and the cover 7 is each chosen so that cooling of the cast material located in the receiving space 8 is largely avoided, the hollow cylinder-like Body 3 is designed so that the cast material passing through it during the suction process is heated will.

LeerseiteBlank page

Claims (2)

DIPL.-ING. H. FINK PATENTANWALT · D 7300 ESSUNGEN BEI STUHGART · HINDENBURGSTRASSE Patentanwalt Fl N K. D 7300 fcalingen [Nackor), HlndenbufB»trn6» 44 18. März 1981 Sc P 6670 121.bi6 F G.L. Rexroth GmbH, Jahnstrasse, 8770 Lohr/Main AnsprücheDIPL.-ING. H. FINK PATENTANWALT · D 7300 ESSUNGEN BEI STUHGART · HINDENBURGSTRASSE Patent Attorney Fl N K. D 7300 fcalingen [Nackor), HlndenbufB »trn6» 44 March 18, 1981 Sc P 6670 121.bi6 F G.L. Rexroth GmbH, Jahnstrasse, 8770 Lohr / Main claims 1. Speiser für ein Gußstück, insbesondere aus Gußeisen, mit einem hohlzylinderartigen Körper aus einer exothermen Heizmasse, die das im Speiser befindliche Gut bis zur Beendigung des Nachsaugens von Gießgut durch den zu speisenden Gußstückbereich flüssig hält, wobei das Speiservolumen der Größe des Nachsaugvolumens zuzüglich eines maximalen Sicherheitsbetrages von 30 % des Nachsaugvolumens entspricht, dadurch gekennzeichnet , daß sich an den hohlzylinderartigen Körper auf der vom Gußstück abgewandten Seite ein dem Hohlraum dieses Körpers gegenüber erweiterter Aufnahmeraum anschließt, der allseitig von einer exothermen Heizmasse umgeben ist.1. Feeder for a casting, in particular made of cast iron, with a hollow cylinder-like body an exothermic heating mass, which the material located in the feeder until the end of the suction of cast material through the casting area to be fed keeps liquid, the feeder volume of the Size of the suction volume plus a maximum safety amount of 30% of the suction volume corresponds, characterized in that the hollow cylinder-like Body on the side facing away from the casting, a widened to the cavity of this body opposite Adjoining the receiving space, which is surrounded on all sides by an exothermic heating mass. 2. Speiser nach Anspruch 1, dadurch gekennzeichnet , daß die den gegenüber dem Hohlraum des hohlzylinderartigen Körper erweiterten Aufnahmeraum begrenzende Heizmasse nach Art eines Topfes ausgebildet ist, in dessen Boden ein einem dem freien Querschnitt des hohlzylinderartigen2. Feeder according to claim 1, characterized in that the opposite to the cavity the hollow cylinder-like body expanded receiving space delimiting heating mass in the manner of a Pot is formed, in the bottom of a one of the free cross-section of the hollow cylinder-like - 2 - 18. März 1981 Sc P 6670 121.616 F- 2 - March 18, 1981 Sc P 6670 121,616 F Körpers entsprechenden Querschnitt aufweisendes Durchgangsloch vorgesehen ist und der von einem eingelassenen Deckel abgedeckt ist.Body corresponding cross section is provided and that of a through hole recessed lid is covered.
DE19813122597 1981-06-06 1981-06-06 "FOOD FOR A CAST PIECE" Granted DE3122597A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19813122597 DE3122597A1 (en) 1981-06-06 1981-06-06 "FOOD FOR A CAST PIECE"
EP82103616A EP0066709B1 (en) 1981-06-06 1982-04-28 Feeder head for a casting
AT82103616T ATE25209T1 (en) 1981-06-06 1982-04-28 FOOD FOR A GUBSTUECK.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813122597 DE3122597A1 (en) 1981-06-06 1981-06-06 "FOOD FOR A CAST PIECE"

Publications (2)

Publication Number Publication Date
DE3122597A1 true DE3122597A1 (en) 1982-12-23
DE3122597C2 DE3122597C2 (en) 1987-04-30

Family

ID=6134126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813122597 Granted DE3122597A1 (en) 1981-06-06 1981-06-06 "FOOD FOR A CAST PIECE"

Country Status (3)

Country Link
EP (1) EP0066709B1 (en)
AT (1) ATE25209T1 (en)
DE (1) DE3122597A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059481B4 (en) * 2000-11-30 2012-02-23 AS Lüngen GmbH Feeder with a tube-like body
EP1345716B2 (en) † 2000-11-30 2013-07-24 ASK Chemicals Feeding Systems GmbH Feeder comprising a tubular body
DE10142357B4 (en) * 2001-08-30 2013-10-17 Ask Chemicals Feeding Systems Gmbh Feeder with a tube-like body

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260285B (en) * 1991-10-03 1994-10-12 Masamitsu Miki Riser sleeve with breaker core
CN105215279A (en) * 2014-07-06 2016-01-06 长葛市吉庆机械厂 Movable heated type casting rising head

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500097A (en) * 1947-10-14 1950-03-07 Peter J Soffel Exothermic composition for controlling the fluidity of castings
DE2010337B1 (en) * 1970-03-05 1971-11-25 Rexroth Gmbh G L Exothermic riser for castings
DE2402024A1 (en) * 1973-01-24 1974-07-25 Brown Insulating Systems Inc METHOD AND DEVICE FOR MANUFACTURING CAST PIECES
DE2808784A1 (en) * 1977-03-01 1978-09-14 Foseco Trading Ag CRUSH CORE FOR CASTING FORMS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603961A1 (en) * 1976-02-03 1977-08-04 Eichelkraut Guenther Heat reflecting lids for ingot moulds, feeder heads etc. - using pref. parabolic reflector, to eliminate use of casting powder
JPS56500681A (en) * 1979-06-14 1981-05-21

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500097A (en) * 1947-10-14 1950-03-07 Peter J Soffel Exothermic composition for controlling the fluidity of castings
DE2010337B1 (en) * 1970-03-05 1971-11-25 Rexroth Gmbh G L Exothermic riser for castings
DE2402024A1 (en) * 1973-01-24 1974-07-25 Brown Insulating Systems Inc METHOD AND DEVICE FOR MANUFACTURING CAST PIECES
DE2808784A1 (en) * 1977-03-01 1978-09-14 Foseco Trading Ag CRUSH CORE FOR CASTING FORMS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059481B4 (en) * 2000-11-30 2012-02-23 AS Lüngen GmbH Feeder with a tube-like body
EP1345716B2 (en) † 2000-11-30 2013-07-24 ASK Chemicals Feeding Systems GmbH Feeder comprising a tubular body
DE10142357B4 (en) * 2001-08-30 2013-10-17 Ask Chemicals Feeding Systems Gmbh Feeder with a tube-like body

Also Published As

Publication number Publication date
ATE25209T1 (en) 1987-02-15
EP0066709A3 (en) 1984-08-01
EP0066709A2 (en) 1982-12-15
EP0066709B1 (en) 1987-01-28
DE3122597C2 (en) 1987-04-30

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee