EP0061532A1 - Dispositif de moulage sous pression - Google Patents

Dispositif de moulage sous pression Download PDF

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Publication number
EP0061532A1
EP0061532A1 EP81110378A EP81110378A EP0061532A1 EP 0061532 A1 EP0061532 A1 EP 0061532A1 EP 81110378 A EP81110378 A EP 81110378A EP 81110378 A EP81110378 A EP 81110378A EP 0061532 A1 EP0061532 A1 EP 0061532A1
Authority
EP
European Patent Office
Prior art keywords
melt
space
hermetically sealed
mold
sealed chamber
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
EP81110378A
Other languages
German (de)
English (en)
Other versions
EP0061532B1 (fr
Inventor
Ivan Dimov Dipl.-Ing. Nikolov
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.)
INSTITUT PO METALOSNANIE I TECHNOLOGIA NA METALITE
Institute po Metaloznanie i Technologia na Metalite
Original Assignee
INSTITUT PO METALOSNANIE I TECHNOLOGIA NA METALITE
Institute po Metaloznanie i Technologia na Metalite
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 INSTITUT PO METALOSNANIE I TECHNOLOGIA NA METALITE, Institute po Metaloznanie i Technologia na Metalite filed Critical INSTITUT PO METALOSNANIE I TECHNOLOGIA NA METALITE
Priority to AT81110378T priority Critical patent/ATE19975T1/de
Publication of EP0061532A1 publication Critical patent/EP0061532A1/fr
Application granted granted Critical
Publication of EP0061532B1 publication Critical patent/EP0061532B1/fr
Expired 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
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/08—Controlling, supervising, e.g. for safety reasons
    • 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
    • B22D17/06—Air injection machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould

Definitions

  • the invention relates to a die casting method and a die casting machine for the production of castings from different materials.
  • a method for casting with back pressure is known (BG-PS 187 98), in which, under the effect of the difference between the pressures in the hermetically sealed chamber with the melt container and the hermetically sealed chamber with the casting mold, the melt flows through a material line and the Fills the mold, with a gas back pressure acting in the hermetically sealed chamber with the mold during the filling process.
  • a disadvantage of this method is that when the mold is opened, the space of the material line is connected directly to the outside atmosphere and the melt therein comes into contact with the gas that was in the mold or with the air. This is the cause of a number of casting defects due to the interaction of the gas or air used with the cast material and due to changes in the gas content of the castings produced due to the release of gas in the melt or the lack of separation of additional gas quantities from the melt.
  • Another disadvantage is that a lot of gas is used during the casting, which is energy-disadvantageous on the one hand and on the other hand leads to a change in the quality of the successive castings during the casting process, since the balance between the dissolved gas and other dissolved volatile components of the melt is disturbed and the partial pressures of these components in the gas phase under the melt are not in equilibrium.
  • a machine for casting under low pressure (FR-PS 2 147 827) is known, which consists of a hermetically sealed chamber in which a crucible with molten metal is arranged.
  • the hermetically sealed chamber is connected to a pressure chamber.
  • the casting mold is arranged above the pressure chamber.
  • the hermetically sealed chamber and the pressure chamber are connected to each other by a material line, one end of which is immersed in the crucible with molten metal.
  • Two conical cavities are formed in the pressure chamber, which are connected to one another and to the material line.
  • One conical cavity is connected to the casting mold at the upper end, the other is connected via a pipeline to a crane which has at least four positions. In the first position the crane is connected to a pressurized gas container, in the second position to the gas-filled space of the hermetically sealed chamber, in the third position to the pipeline of the second conical cavity of the pressure chamber and in the fourth position to the atmosphere.
  • the two conical cavities of the pressure chamber have approximately the same volumes and are connected to one another via a through opening, the cross section of which is equal to that of the material line.
  • the volume of the conical cavity which is connected to the crane is so large that the level of the melt in this cavity remains below a certain height when the casting mold is filled.
  • the pressure chamber is provided in the upper part above the start of the pipeline, which connects the one conical cavity with the crane, with a device for interrupting the gas supply into this cavity when the melt in it reaches the certain height.
  • a disadvantage of this machine is that it only allows casting of castings under low pressure and is specially designed for the casting of thin-walled hollow castings, which requires an additional intermediate pressure chamber with a crane to control the casting phases.
  • a machine for casting metals under gas pressure (BG-PS 16 793), which contains a hermetically sealed melt container which is closed by an intermediate plate which carries the material line and a metal permanent mold.
  • the material line is hermetically sealed on the intermediate cover by means of a plastically deformable seal.
  • the mold is sealed on the flange of the material line with well-fitting and adapted surfaces and a thin plastic seal to prevent the melt from flowing out.
  • a disadvantage of this machine is its low productivity due to the many times longer time for the melt to solidify and for the casting to cool down to the removal temperature, compared to the time required for filling the mold. This disadvantage is particularly noticeable when pouring into molds, where the complicated inner and outer surfaces of the casting consist of cores which are arranged in a metal box. The same applies to casting in combined sand-metal molds or in molds made entirely of sand.
  • a further disadvantage is that very complicated means for maintaining a constant pressure during the filling of the mold are required in spite of the gradual decrease in the level of the melt in the hermetically sealed container. As a result, the production of successive castings with consistent quality is not guaranteed.
  • the plastically deformable seal is not suitable for sealing against the outflow of melt during the successive changing of the molds. The sealing of the mold on the flange of the material line by pressing the matched surfaces is unreliable.
  • the invention has for its object to provide a die casting process and a die casting machine for the casting of different materials with different molds, in which the filling at the same pressure of successively used molds and thereby the production of castings with constant quality is guaranteed.
  • This object is achieved according to the invention by a method in which the melt is conveyed by a material line under the effect of a pressure or a pressure difference between the hermetically sealed chamber with the melt container and the chamber with the casting mold, and from the hermetically sealed chamber with the container fills the mold.
  • the melt is allowed to solidify in the mold.
  • pressure is generated in the material line via the melt. This gas pressure is generated with the same gas phase as in the hermetically sealed chamber with the container.
  • the mold space is flushed with this gas phase.
  • the machine used to carry out this method has a hermetically sealed chamber with a lid in which a melt container is arranged.
  • the hermetically sealed chamber is connected to the mold by a material line.
  • the material line consists of two separate pouring tubes, namely a main tube and an additional pouring tube.
  • the main pouring tube has an extension in which the additional pouring tube is arranged.
  • the main pouring tube is closed by a flange cover, via which it is connected to an intermediate plate on which the casting mold is fastened.
  • a neck is formed in the cover of the hermetically sealed chamber, in which a cylinder surrounded by a jacket is arranged.
  • the main pouring tube is attached to the cylinder.
  • the jacket is mounted on the intermediate plate and is provided with a slide bed in which a flat slide is arranged, which is connected to a hydraulic cylinder.
  • the space of the main pouring tube is connected to the space of the hermetically sealed chamber by a first pipe and a first valve.
  • the jacket is connected to the outer surface of the cylinder by a sliding seal.
  • the space between the jacket and the cylinder is connected to the space of the hermetically sealed chamber by a second pipeline with a second valve, a pressure measuring device being provided.
  • the mold When casting under back pressure, the mold is closed with a hermetically sealed cover, which is mounted on the intermediate plate and connected to a vertical hydraulic cylinder.
  • the space of the main pouring tube, the space of the hermetically sealed chamber and the space of the hermetically sealed cover are connected to one another via a third pipeline with a third and a fourth valve, a differential pressure measuring device being provided.
  • the space of the hermetically sealed lid is through a fifth pipe device with a fifth valve connected to the space between the jacket and the cylinder.
  • a lever mechanism is mounted on the main pour tube, which is connected to a third vertical hydraulic cylinder.
  • a recess is formed in the bottom of the hermetically sealed chamber with the melt container.
  • the inventive method and the machine for its implementation have the advantage that a complete protection of the melt in the material line against the action of air or gas in the casting mold is achieved, thereby ensuring the production of castings of high quality.
  • the casting mold can be flushed out before each casting process and with the same gas as in the melt container.
  • the gas consumption for generating and maintaining pressure in the melt container is reduced. This consumption includes only the gas that is pushed out of the melt when the casting mold is filled and the gas for a possible flushing or blowing through the casting mold.
  • the partial pressures of the gases which are in the gas phase in the melt container and in the main pouring tube are of the same size and practically do not change during the successive production of castings.
  • the partial pressure of a given active alloy gas can be increased or decreased simultaneously in the melt container, in the main pouring tube and in the casting mold. This affects the microstructure formation and ensures the formation of a solid solution of the alloying gas in the casting in accordance with the sudden change in its solubility in the phase transition between the solid and liquid state, which is the case with all successive castings a melt batch in the melt container is the case. There are no melt level fluctuations in the material line, which ensures complete control of the filling of the casting mold with melt.
  • the machine shown in FIGS. 1, 2 and 3 has a hermetically sealed chamber 1, in which a container 2 for the melt 3 is arranged.
  • the hermetically sealed chamber 1 is closed with a cover 4 on which a neck 41 is formed.
  • a cylinder 5 is mounted on the neck 41, and an inner flange 51 is formed at the upper end thereof.
  • the hermetically sealed chamber 1 is connected to the mold 13 by a material line.
  • the material line consists of two separate pouring tubes, namely a main pouring tube 6 and an additional pouring tube 18.
  • the main pouring tube 6 is provided with an extension 61 in which the additional pouring tube 18 is arranged.
  • the main pouring tube 6 is closed with a flange cover 7, via which it is connected to the intermediate plate 12.
  • the flange cover 7 is provided with an opening 71.
  • a jacket 8, in which a cylinder 5 is arranged, is mounted on the lower surface of the intermediate plate 12.
  • the jacket 8 is connected to the outer surface of the cylinder 5 via a sliding seal 9.
  • the jacket 8 is provided with a slide bed 81, in which a flat slide 10 is arranged, which is connected to a horizontal hydraulic cylinder 11.
  • the casting mold 13 is arranged on the intermediate plate 12.
  • the additional pouring tube 18 is attached to the casting mold 13.
  • the mold 13 is closed by the hermetic cover 19, which is mounted on the intermediate plate 12 and is connected to a first vertical hydraulic cylinder 20.
  • the hermetic cover 19 consists of two parts, namely an upper part 191 and a lower cylindrical part 192.
  • the intermediate plate 12 is fastened via supporting columns 14 to a crossbeam 15 which is connected to the piston of a second vertical hydraulic cylinder 16.
  • the first vertical hydraulic cylinder 20 is fastened to the crossbar 15, while the second vertical hydraulic cylinder 16 is fastened to a support 17.
  • the space of the main pouring tube 6 is connected to the space of the hermetically sealed chamber 1 via a first pipeline with a first valve f.
  • the space between the cylinder 5 and the jacket 8 is connected to the space of the hermetically sealed chamber 1 by a second pipeline with a second valve f 1 , a pressure measuring device M 1 being provided.
  • the space of the hermetic cover 19 and the space of the hermetically sealed chamber 1 are connected via a third pipeline with a third valve g 1 to a fourth valve g, a differential pressure measuring device M being provided.
  • the space of the hermetic cover 19 is connected via a fifth pipe with a fifth valve c to the space between the jacket 8 and the cylinder 5.
  • a lever mechanism 21 is mounted on the main pouring tube 6, which is provided for its movement in the vertical direction and is connected to a third vertical hydraulic cylinder 22 that is.
  • a recess 23 is formed in the bottom of the container 2 for the melt 3.
  • the hermetic cover 19 being open and the flange cover 7 of the main pouring tube 6 being closed by the flat slide 10.
  • the space in the hermetically sealed chamber 1 with the container 2 for the melt 3 is filled with sulfur dioxide or argon or a mixture of these gases at a desired pressure.
  • the valve f is open and the pressure of the gas in the space of the hermetically sealed chamber 1 and in the space of the main pouring tube 6 above the melt 3 is balanced, its value being read on the differential pressure measuring device M, namely with the valve g open and the valve g closed 1st
  • the valves a, b, c, d, f 1 are closed.
  • the hermetic lid 19 is closed together with the upper part of the mold 13 by moving downwards, which is generated by the first vertical hydraulic cylinder 20, the closed space being hermetically sealed.
  • the valves b and c 1 are opened, after which the space under the hermetic cover 19 is filled with nitrogen until the pressure in the hermetically sealed chamber 1 is equalized. This is indicated by the zero display of the differential pressure measuring device M.
  • valve b is closed. There follows a signal for the movement of the intermediate plate 12 in its upper end position, after which the flat slide 10 opens while the second vertical hydraulic cylinder 16 moves the intermediate plate 12 down until it rests on the elastic seal on the flange cover 7 of the main pouring tube 6.
  • the additional pouring tube 18 arrives in the extension 61 of the main pouring tube 6. There follows a signal for the closing of the valves c 1 and g and the opening of the valve a, which controls the desired pouring process, and the valves f 1 and g 1 .
  • the pressure in the hermetically sealed chamber 1 begins to rise.
  • the melt 3 begins to rise in the main pouring tube 6 and forces the sulfur dioxide or argon located there in front of it.
  • the differential pressure measuring device M shows a small overpressure due to the throttling action in the ventilation channels of the mold 13.
  • the melt 3 reaches the lower end of the additional pouring tube 18, it rises further into this tube, forcing the lighter nitrogen out of the casting mold 13 and replaces it with the sulfur dioxide or argon flowing in front of it, while the melt in the space between the two pouring tubes compresses the sulfur dioxide or argon enclosed in it.
  • the casting mold 13 is filled with melt which is in practically continuous contact with protective gas in the form of sulfur dioxide or argon.
  • the differential pressure measuring device M shows the increase in pressure as a function of time according to a law that is specific to the configuration of the mold cavity 13.
  • the pointer of the differential pressure measuring device M begins to deviate rapidly and, upon reaching a predetermined specific size for the displayed pressure difference, gives a signal for the closing of the valve a.
  • the valve f is opened simultaneously with the closing of the valve a, with a rapid compensation of the pressures in the space of the main pouring tube 6 and Space of container 2 enters.
  • the level of the melt in the space between the main pouring tube 6 and the additional pouring tube 18 drops.
  • the protective gas in the form of sulfur dioxide or argon which has the same composition as in the container 2 for the melt 3, enters the additional pouring tube 18 and the casting mold 13 and from there forces the melt out is below the level of the feed.
  • the horizontal hydraulic cylinder 11 for moving the flat slide 10 upwards can be actuated immediately, the additional pouring tube 18 being pulled out of the extension 61 of the main pouring tube 6.
  • valves c and c 1 are opened, as a result of which the pressure is released in the space around the mold 13 and in the space between the cylinder 5 and the jacket 8, with the nitrogen from the space of the mold 13 escapes. Sulfur dioxide or argon continues to act in the space between the cylinder 5 and the jacket 8 at a pressure that is balanced with the external atmospheric pressure.
  • the pressure gauges M and M 1 show zero display. The valve g 1 is closed, the valve g is opened, the differential pressure measuring device M is switched on to display the pressure in the container 2 for the melt 3.
  • Valves c and c 1 are normally closed.
  • the opening of the outlet pipeline after the valve c is raised above the level of the intermediate plate 12, which does not allow air to enter the space between the cylinder 5 and the jacket 8 during the opening of the mold 13. If necessary, the valve c 1 can remain closed during the opening of the mold 13.
  • the layer of heavier protective gas in the space from the feed to the lower end of the additional pouring tube 18 also does not allow air to enter the space between the cylinder 5, the jacket 8 and the intermediate plate 12. After the casting has cooled to the removal temperature, the upper part becomes opened the mold and removed the finished casting, after which the mold 13 is prepared for the next casting.
  • the exemplary embodiment described also applies to casting under low pressure or vacuum, the container 2 for the melt remaining under constant pressure, the same gas acting above the level of the melt 3 in the container 2 and in the main pouring tube 6.
  • the container 2 for the melt 3 can also be moved vertically with a view to pressing the flat slide 10 against the elastic seal of the flange cover 7 of the main pouring tube 6 and pulling out the additional pouring tube 18 from the extension 61 of the main pouring tube 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Dental Prosthetics (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
EP81110378A 1980-12-11 1981-12-11 Dispositif de moulage sous pression Expired EP0061532B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81110378T ATE19975T1 (de) 1980-12-11 1981-12-11 Druckgiessmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG8049948A BG33467A1 (en) 1980-12-11 1980-12-11 Method and machine for castind under presure
BG49948/80 1980-12-11

Publications (2)

Publication Number Publication Date
EP0061532A1 true EP0061532A1 (fr) 1982-10-06
EP0061532B1 EP0061532B1 (fr) 1986-05-28

Family

ID=3908303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110378A Expired EP0061532B1 (fr) 1980-12-11 1981-12-11 Dispositif de moulage sous pression

Country Status (21)

Country Link
US (1) US4550763A (fr)
EP (1) EP0061532B1 (fr)
JP (1) JPS57127568A (fr)
AR (1) AR230012A1 (fr)
AT (1) ATE19975T1 (fr)
AU (1) AU550563B2 (fr)
BG (1) BG33467A1 (fr)
BR (1) BR8108037A (fr)
CA (1) CA1181923A (fr)
CS (1) CS271101B2 (fr)
DD (1) DD202253A5 (fr)
DE (1) DE3174743D1 (fr)
DK (1) DK152178C (fr)
ES (1) ES507780A0 (fr)
HU (1) HU185073B (fr)
IN (1) IN156285B (fr)
NO (1) NO157326C (fr)
PL (1) PL132008B1 (fr)
RO (1) RO84863B (fr)
SU (1) SU1287976A1 (fr)
YU (1) YU43907B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615768A1 (fr) * 1987-05-27 1988-12-02 Centre Nat Rech Scient Procede de moulage en coquille, notamment metallique, et dispositif et coquille s'y rapportant
FR2616363A1 (fr) * 1987-06-11 1988-12-16 Cegedur Procede et dispositif de moulage en sable de pieces composites a matrice en alliage leger et insert fibreux
FR2666037A1 (fr) * 1990-08-27 1992-02-28 Pont A Mousson Installation de positionnement et de serrage de moules de fonderie.
US5636680A (en) * 1994-06-29 1997-06-10 Dansk Industri Syndikat A/S Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys
CN109290545A (zh) * 2018-12-07 2019-02-01 蚌埠隆华压铸机有限公司 一种避免铸件产生气泡的卧式压铸机

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
FR2583321B1 (fr) * 1985-06-18 1987-09-18 Etude Dev Metallurg Procede de coulee sous basse pression isostatique et machine pour sa mise en oeuvre
US5042561A (en) * 1988-03-30 1991-08-27 Hitchiner Manufacturing Co., Inc. Apparatus and process for countergravity casting of metal with air exclusion
JPH0314713A (ja) * 1989-06-12 1991-01-23 Nissan Motor Co Ltd 能動型サスペンション
NO304893B1 (no) * 1997-07-07 1999-03-01 Norsk Hydro As FremgangsmÕte for smelting av magnesium uten flussmiddel og utstyr for dette
US20160158837A1 (en) * 2014-12-06 2016-06-09 Soliden, LLC Sand casting device and associated method with improved mechanical properties
CN105268951A (zh) * 2015-02-05 2016-01-27 天津新伟祥工业有限公司 负压上吸浇注方法
PL3059029T3 (pl) * 2015-02-17 2018-11-30 Mei Ta Industrial Co., Ltd. Sposób zalewania z odciągiem podciśnieniowym do góry
CN106563787A (zh) * 2015-10-12 2017-04-19 天津达祥精密工业有限公司 负压上吸浇注装置
CN114226690A (zh) * 2021-11-20 2022-03-25 河南信持睿电气设备有限公司 一种用于铝合金差压铸造的控制方法及铸造装置

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FR2020237A1 (fr) * 1968-10-09 1970-07-10 Inst Metaloznanie
FR2270037A1 (fr) * 1974-05-10 1975-12-05 Pechiney Aluminium
DE2437734A1 (de) * 1974-08-06 1976-02-26 Merkur Gmbh Metallwerk Niederdruck-giessvorrichtung fuer magnesium
DE2947602A1 (de) * 1979-10-30 1981-05-14 BBC AG Brown, Boveri & Cie., Baden, Aargau Niederdruck-giessverfahren und niederdruck-giessvorrichtung fuer sauerstoffempfindliche gusswerkstoffe

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US2847739A (en) * 1951-07-12 1958-08-19 Griffin Wheel Co Casting apparatus
FR1525455A (fr) * 1965-11-02 1968-05-17 Babcock & Wilcox Co Tubes de coulée sous pression
GB1261753A (en) * 1968-04-05 1972-01-26 Inst Po Metalloznanie I Tekno A method of and apparatus for casting a material of which at least part evaporates or dissociates intensively at pouring temperature
US3635791A (en) * 1969-08-04 1972-01-18 Gen Motors Corp Pressure pouring in a vacuum environment
BE786990A (fr) * 1971-08-02 1973-01-31 Pechiney Aluminium Appareillage pour le moulage de couches minces
SU461798A1 (ru) * 1973-01-04 1975-02-28 Горьковский Проектно-Конструкторский Технологический Институт Устройство дл лить под низким давлением
BG18798A1 (fr) * 1973-01-11 1975-03-20
US3862656A (en) * 1973-02-16 1975-01-28 Aurora Metal Corp Method and apparatus for vacuum casting of metal
SU616061A1 (ru) * 1975-02-25 1978-07-25 Научно-Исследовательский Институт Специальных Способов Литья Установка лить с противодавлением
FR2378591A1 (fr) * 1977-01-28 1978-08-25 Buscher Kg Conduit elevateur pour la coulee de metaux sous la pression d'un gaz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020237A1 (fr) * 1968-10-09 1970-07-10 Inst Metaloznanie
FR2270037A1 (fr) * 1974-05-10 1975-12-05 Pechiney Aluminium
DE2437734A1 (de) * 1974-08-06 1976-02-26 Merkur Gmbh Metallwerk Niederdruck-giessvorrichtung fuer magnesium
DE2947602A1 (de) * 1979-10-30 1981-05-14 BBC AG Brown, Boveri & Cie., Baden, Aargau Niederdruck-giessverfahren und niederdruck-giessvorrichtung fuer sauerstoffempfindliche gusswerkstoffe

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615768A1 (fr) * 1987-05-27 1988-12-02 Centre Nat Rech Scient Procede de moulage en coquille, notamment metallique, et dispositif et coquille s'y rapportant
US4907642A (en) * 1987-05-27 1990-03-13 Centre National De La Recherche Scientifique (Cnrs) Chill moulding process, particularly for metals, and apparatus and mold for use therein
FR2616363A1 (fr) * 1987-06-11 1988-12-16 Cegedur Procede et dispositif de moulage en sable de pieces composites a matrice en alliage leger et insert fibreux
EP0296074A1 (fr) * 1987-06-11 1988-12-21 Pechiney Rhenalu Procédé et dispositif de moulage en sable de pièces composites à matrice en alliage léger et insert fibreux
FR2666037A1 (fr) * 1990-08-27 1992-02-28 Pont A Mousson Installation de positionnement et de serrage de moules de fonderie.
EP0477118A1 (fr) * 1990-08-27 1992-03-25 Pont-A-Mousson S.A. Installation de positionnement et de serrage de moules de fonderie
US5183097A (en) * 1990-08-27 1993-02-02 Pont-A-Mousson S.A. Equipment installation for positioning and clamping foundry molds
US5636680A (en) * 1994-06-29 1997-06-10 Dansk Industri Syndikat A/S Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys
CN109290545A (zh) * 2018-12-07 2019-02-01 蚌埠隆华压铸机有限公司 一种避免铸件产生气泡的卧式压铸机

Also Published As

Publication number Publication date
PL132008B1 (en) 1985-01-31
BG33467A1 (en) 1983-03-15
HU185073B (en) 1984-11-28
AR230012A1 (es) 1984-02-29
RO84863A (fr) 1984-08-17
DK152178B (da) 1988-02-08
DE3174743D1 (en) 1986-07-03
RO84863B (ro) 1984-09-30
JPH0238305B2 (fr) 1990-08-29
NO814223L (no) 1982-06-14
ATE19975T1 (de) 1986-06-15
IN156285B (fr) 1985-06-15
AU550563B2 (en) 1986-03-27
JPS57127568A (en) 1982-08-07
CS271101B2 (en) 1990-08-14
DK550981A (da) 1982-06-12
NO157326B (no) 1987-11-23
NO157326C (no) 1988-03-02
YU282881A (en) 1984-08-31
YU43907B (en) 1989-12-31
ES8307557A1 (es) 1983-07-01
DK152178C (da) 1988-06-27
ES507780A0 (es) 1983-07-01
PL234128A1 (fr) 1982-08-02
US4550763A (en) 1985-11-05
DD202253A5 (de) 1983-09-07
AU7845581A (en) 1982-06-17
BR8108037A (pt) 1982-09-21
SU1287976A1 (ru) 1987-02-07
EP0061532B1 (fr) 1986-05-28
CA1181923A (fr) 1985-02-05

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