EP0270466B1 - Machine de moulage sous pression de pièces métalliques contenant éventuellement des fibres en céramiques - Google Patents
Machine de moulage sous pression de pièces métalliques contenant éventuellement des fibres en céramiques Download PDFInfo
- Publication number
- EP0270466B1 EP0270466B1 EP87420297A EP87420297A EP0270466B1 EP 0270466 B1 EP0270466 B1 EP 0270466B1 EP 87420297 A EP87420297 A EP 87420297A EP 87420297 A EP87420297 A EP 87420297A EP 0270466 B1 EP0270466 B1 EP 0270466B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- piston
- metal
- pressure
- orifice
- 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
Links
Images
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
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- 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
- B22D17/04—Plunger machines
-
- 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
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal
Definitions
- the present invention relates to a machine for the pressure molding of metal parts, in particular of aluminum and lithium alloys or of magnesium alloys, said alloys possibly containing ceramic fibers, according to the preamble of claim 1.
- US-A 3,058,179 had already, for an entirely different purpose, produced a machine which partially addresses the interaction problem.
- the container is here supplied, sheltered from air, by means of a piping plunging into a sealed container containing the metal to be molded in the liquid state and provided at its upper part with an inlet for pressurized inert gas by means of which an overpressure is created on the surface of the liquid to send the latter into the container.
- the air contained in the cylinder where the piston slides and which surrounds the piston rod is found to be put in relation with the liquid supply piping to the container.
- the metal contained in the piping begins to flow back towards the container, it sucks this air and is thus oxidized.
- inert gas is blown under a pressure Pi into the piping.
- this gas can spread into the mold cavity thereby purging it of the air it contains.
- This gas then fills the entire volume bonded between the metal and its pressure expels the air which comes from the piston cylinder.
- the length of the piston must be greater than the height of the orifice both in relation to the piping with the container so that the metal is pushed back before the cylinder is put in relation to the piping. Subsequently, when the piston goes down and unmask the orifice, the gas blown then under low pressure will enter the container and prevent any entry of air from the mold which is then opened and this until the value of P 2 which has been reduced to 0 to facilitate the return of the metal to the container is increased to start a new molding cycle.
- a kind of pocket placed on top of the piping and inside which a gas blanket is kept to prevent the entry of metal into the system. insufflation.
- This pocket is equipped with a probe which detects an abnormal reduction in the height of the gas mattress and then commands the opening of a special valve responsible for ensuring the additional pressure necessary to maintain the desired height.
- the value of P 2 must be at least equal to the value of the metallostatic pressure exerted by the metal when it fills the imprint. As for the difference Pi - P 2 it is of the order of 0.01 MPa.
- FIG. 1 a distinction is made between the fixed lower plate 1 and the mobile upper plate 2 of a vertical die-casting machine. Between these plates is placed the mold 3 having an imprint 4.
- the lower plate is equipped with an injection device constituted by the container 5 in which slides the piston 6 supported by the rod 7 driven by a reciprocating movement and comes under the effect of the jack 18.
- Said container is connected via the orifice 8 to the pipe 9 which plunges into the bath 10 of metal to be molded contained in the crucible 11 placed in the sealed container 12 which can be pressurized via the gas inlet 13 in order to send the metal through the piping 9 to the container 5.
- an inert gas is blown into the pipeline 14 at a point 15 in the piping 9 according to a pressure linked to the pressure prevailing in the container as a function of the position of the piston detected by the probe 17, pressure which can be controlled by the differential pressure regulator 16.
- Figure 2 we find the elements of Figure 1 namely the container 5, the piston 6, the rod 7, the orifice 8, the piping 9, the metal bath 10, the crucible 11, the container 12, l gas inlet 13, the pipe 14, the blowing point 15, the pressure gauge 16 and the probe 17.
- the molding cycle is then restarted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Braking Arrangements (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87420297T ATE46640T1 (de) | 1986-10-31 | 1987-10-30 | Druckgiessmaschine fuer metallische gussstuecke, die keramikfasern enthalten koennen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8615437 | 1986-10-31 | ||
FR8615437A FR2605913A1 (fr) | 1986-10-31 | 1986-10-31 | Procede de moulage sous pression de pieces metalliques contenant eventuellement des fibres en ceramiques |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0270466A1 EP0270466A1 (fr) | 1988-06-08 |
EP0270466B1 true EP0270466B1 (fr) | 1989-09-27 |
Family
ID=9340563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87420297A Expired EP0270466B1 (fr) | 1986-10-31 | 1987-10-30 | Machine de moulage sous pression de pièces métalliques contenant éventuellement des fibres en céramiques |
Country Status (21)
Country | Link |
---|---|
US (1) | US4777998A (fi) |
EP (1) | EP0270466B1 (fi) |
JP (1) | JPS63115664A (fi) |
KR (1) | KR910009368B1 (fi) |
AR (1) | AR241762A1 (fi) |
AT (1) | ATE46640T1 (fi) |
AU (1) | AU586786B2 (fi) |
BR (1) | BR8705803A (fi) |
CA (1) | CA1302045C (fi) |
DE (1) | DE3760607D1 (fi) |
DK (1) | DK160467C (fi) |
ES (1) | ES2010716B3 (fi) |
FI (1) | FI82620C (fi) |
FR (1) | FR2605913A1 (fi) |
GR (1) | GR3000173T3 (fi) |
IE (1) | IE62774B1 (fi) |
IS (1) | IS1397B6 (fi) |
MX (1) | MX169523B (fi) |
NO (1) | NO167635C (fi) |
PT (1) | PT86026B (fi) |
SU (1) | SU1637659A3 (fi) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19812068C2 (de) * | 1998-03-11 | 2000-09-21 | Gut Gieserei Umwelt Technik Gm | Gießvorrichtung mit Nachverdichtung |
DE19943153C1 (de) * | 1998-03-19 | 2001-01-25 | Gut Gieserei Umwelt Technik Gm | Gießvorrichtung mit Nachverdichtung |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2642686B1 (fr) * | 1989-01-16 | 1991-05-17 | Creusot Loire | Dispositif et procede d'alimentation en metal liquide pour la coulee sous pression de produits metalliques |
US5085830A (en) * | 1989-03-24 | 1992-02-04 | Comalco Aluminum Limited | Process for making aluminum-lithium alloys of high toughness |
US5775403A (en) * | 1991-04-08 | 1998-07-07 | Aluminum Company Of America | Incorporating partially sintered preforms in metal matrix composites |
US5570502A (en) * | 1991-04-08 | 1996-11-05 | Aluminum Company Of America | Fabricating metal matrix composites containing electrical insulators |
US5616421A (en) * | 1991-04-08 | 1997-04-01 | Aluminum Company Of America | Metal matrix composites containing electrical insulators |
US5259436A (en) * | 1991-04-08 | 1993-11-09 | Aluminum Company Of America | Fabrication of metal matrix composites by vacuum die casting |
JPH0623510A (ja) * | 1992-05-26 | 1994-02-01 | Tanabe Kogyo Kk | 不活性ガス給湯管給気給湯方法と装置と不活性ガス濃厚雰囲気樋と不活性ガス雰囲気ボックス |
US5533257A (en) * | 1994-05-24 | 1996-07-09 | Motorola, Inc. | Method for forming a heat dissipation apparatus |
DK77694A (da) * | 1994-06-29 | 1995-12-30 | Dansk Ind Syndikat | Fremgangsmåde og indretning til ved udstøbning mod tyngdekraften af støbeforme, især vådsandforme, med navnlig letoxiderbare metaller eller metallegeringer af afslutte støbeprocessen |
EP1035932A1 (en) * | 1997-11-07 | 2000-09-20 | AB Jafs Export Oy Holimesy | Method and apparatus for melting non-ferrous metals, especially magnesium |
DE19802342C1 (de) * | 1998-01-22 | 1999-03-04 | Gustav Ohnsmann | Einrichtung zur Metallbeschickung waage- und senkrechter Kaltkammer - Druckgießmaschinen und Verfahren |
DE10061026A1 (de) * | 2000-12-08 | 2002-06-13 | Bayerische Motoren Werke Ag | Metallgießverfahren und -vorrichtung |
US20090160106A1 (en) * | 2004-10-12 | 2009-06-25 | Efficient Manufacturing System Integration | Apparatus and method for simultaneous usage of multiple die casting tools |
CN104985159B (zh) * | 2015-07-03 | 2017-06-13 | 洛阳西格马炉业股份有限公司 | 一种生产高熔点金属包覆陶瓷碎片材料的压铸装置及方法 |
CN106694838B (zh) * | 2016-11-10 | 2018-07-03 | 重庆代发铸造有限公司 | 防气泡铸造装置 |
CN108994278B (zh) * | 2018-09-19 | 2020-05-12 | 新成业机铸制品(深圳)有限公司 | 一种定量精准的压力铸造设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3058179A (en) * | 1959-04-20 | 1962-10-16 | Cannon Earl | Die casting machine |
DE1458062B2 (de) * | 1964-11-23 | 1970-06-04 | Göhring, Dipl.-Ing. Karl, 7000 Stuttgart-Degerloch | Beschickungsvorrichtung für Gießmaschinen |
FR2270037B1 (fi) * | 1974-05-10 | 1979-04-06 | Pechiney Aluminium | |
DE3063723D1 (en) * | 1979-03-21 | 1983-07-21 | Promagco Ltd | Improvements relating to hot chamber die-casting |
JPS5797860A (en) * | 1980-12-10 | 1982-06-17 | Hitachi Ltd | Method and device for casting |
US4633930A (en) * | 1985-06-11 | 1987-01-06 | The Dow Chemical Company | Molten metal shot size and delivery mechanism for continuous casting operations |
-
1986
- 1986-10-31 FR FR8615437A patent/FR2605913A1/fr not_active Withdrawn
-
1987
- 1987-04-28 JP JP62106152A patent/JPS63115664A/ja active Granted
- 1987-10-26 US US07/112,078 patent/US4777998A/en not_active Expired - Fee Related
- 1987-10-28 AR AR87309149A patent/AR241762A1/es active
- 1987-10-29 PT PT86026A patent/PT86026B/pt not_active IP Right Cessation
- 1987-10-29 IS IS3275A patent/IS1397B6/is unknown
- 1987-10-29 NO NO874507A patent/NO167635C/no unknown
- 1987-10-29 DK DK566687A patent/DK160467C/da not_active IP Right Cessation
- 1987-10-29 AU AU80456/87A patent/AU586786B2/en not_active Ceased
- 1987-10-29 MX MX009075A patent/MX169523B/es unknown
- 1987-10-30 FI FI874796A patent/FI82620C/fi not_active IP Right Cessation
- 1987-10-30 IE IE292187A patent/IE62774B1/en not_active IP Right Cessation
- 1987-10-30 AT AT87420297T patent/ATE46640T1/de not_active IP Right Cessation
- 1987-10-30 EP EP87420297A patent/EP0270466B1/fr not_active Expired
- 1987-10-30 ES ES87420297T patent/ES2010716B3/es not_active Expired
- 1987-10-30 DE DE8787420297T patent/DE3760607D1/de not_active Expired
- 1987-10-30 CA CA000550692A patent/CA1302045C/fr not_active Expired - Fee Related
- 1987-10-30 SU SU874203596A patent/SU1637659A3/ru active
- 1987-10-30 KR KR1019870012112A patent/KR910009368B1/ko not_active IP Right Cessation
- 1987-10-30 BR BR8705803A patent/BR8705803A/pt unknown
-
1989
- 1989-09-28 GR GR89400063T patent/GR3000173T3/el unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19812068C2 (de) * | 1998-03-11 | 2000-09-21 | Gut Gieserei Umwelt Technik Gm | Gießvorrichtung mit Nachverdichtung |
DE19943153C1 (de) * | 1998-03-19 | 2001-01-25 | Gut Gieserei Umwelt Technik Gm | Gießvorrichtung mit Nachverdichtung |
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