FR2427904A3 - Presse hydraulique pour poudres et charges explosives - Google Patents

Presse hydraulique pour poudres et charges explosives

Info

Publication number
FR2427904A3
FR2427904A3 FR7914686A FR7914686A FR2427904A3 FR 2427904 A3 FR2427904 A3 FR 2427904A3 FR 7914686 A FR7914686 A FR 7914686A FR 7914686 A FR7914686 A FR 7914686A FR 2427904 A3 FR2427904 A3 FR 2427904A3
Authority
FR
France
Prior art keywords
pressure
cam
powder compacting
hydraulic press
adjusting cam
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
FR7914686A
Other languages
English (en)
Other versions
FR2427904B3 (fr
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.)
WNC Nitrochemie GmbH
Nitrochemie Aschau GmbH
Original Assignee
WNC Nitrochemie GmbH
Nitrochemie Aschau 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 WNC Nitrochemie GmbH, Nitrochemie Aschau GmbH filed Critical WNC Nitrochemie GmbH
Publication of FR2427904A3 publication Critical patent/FR2427904A3/fr
Application granted granted Critical
Publication of FR2427904B3 publication Critical patent/FR2427904B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/26—Extrusion presses; Dies therefor using press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)

Abstract

L'invention concerne une presse à poudre comportant un coulisseau à commande hydraulique. Au vérin d'entraînement du coulisseau est associé, en parallèle, une soupape de réglage de la pression hydraulique dans le vérin, dont le réglage a pour effet une augmentation graduelle de la pression hydraulique et, ensuite, son maintien à une valeur constante. Pour des raisons de sécurité, la soupape de réglage est actionnée à l'aide d'un disque de came entraîné en rotation par un moteur. La pression existante dans le vérin est surveillée par un tracteur de courbe muni d'un interrupteur à maximum et fonctionnant de façon à arrêter le moteur d'entraînement du disque de came dès qu'une pression hydraulique maximale ajustable est atteinte.
FR7914686A 1978-06-08 1979-06-08 Presse hydraulique pour poudres et charges explosives Granted FR2427904A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782825253 DE2825253A1 (de) 1978-06-08 1978-06-08 Hydraulische pulverpresse

Publications (2)

Publication Number Publication Date
FR2427904A3 true FR2427904A3 (fr) 1980-01-04
FR2427904B3 FR2427904B3 (fr) 1981-02-13

Family

ID=6041387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914686A Granted FR2427904A3 (fr) 1978-06-08 1979-06-08 Presse hydraulique pour poudres et charges explosives

Country Status (6)

Country Link
AR (1) AR231509A1 (fr)
BR (1) BR7903656A (fr)
DE (1) DE2825253A1 (fr)
FI (1) FI69830C (fr)
FR (1) FR2427904A3 (fr)
IT (2) IT7921762V0 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825795C2 (de) * 1978-06-13 1982-06-03 Werner & Pfleiderer, 7000 Stuttgart Verfahren zum Druckaufbau in einer Presse und Schaltanordnung zum Ausüben des Verfahrens
EP0069566A3 (fr) * 1981-07-02 1983-08-17 Johnson Matthey Public Limited Company Procédé et dispositif d'extrusion
DE3607655A1 (de) * 1986-03-08 1987-09-10 Skf Gmbh Hydraulisch betaetigte vorrichtung
DE10010671C2 (de) † 2000-03-04 2002-03-14 Fette Wilhelm Gmbh Verfahren zur Herstellung von Preßteilen durch Pressen von Metallpulver und anschließendes Sintern des Preßlings
DE102011015050A1 (de) 2011-03-24 2012-09-27 Sms Meer Gmbh Presse zur Herstellung eines Formteils und Verfahren zum Wechseln einer Matrize an einer Presse

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291912C (fr) *
DE588010C (de) * 1932-03-17 1933-11-11 Fried Krupp Grusonwerk Akt Ges Hydraulische Presse zum Auspressen plastischer Massen
US2588066A (en) * 1946-05-06 1952-03-04 Allied Electric Products Inc Protection of hydraulic power presses
US2855627A (en) * 1953-11-06 1958-10-14 Phillips Petroleum Co Pellet molding apparatus
AT251364B (de) * 1963-05-13 1966-12-27 Festo Maschf Stoll G Schaltvorrichtung
US3555965A (en) * 1968-01-23 1971-01-19 Alpha Press Co A apparatus for controlling pressure in a hydraulic machine
US3550204A (en) * 1968-06-26 1970-12-29 Ostrander Seymour Co Dimensional control system
DE2035844A1 (en) * 1970-07-18 1972-01-20 Maschinenfabrik Lauffer & Butscher, 7241 Mühlen Hydraulic press - for powdered materials
NL7207024A (fr) * 1972-05-25 1973-11-27

Also Published As

Publication number Publication date
FI782464A (fi) 1979-12-09
AR231509A1 (es) 1984-12-28
IT1120944B (it) 1986-03-26
FI69830B (fi) 1985-12-31
BR7903656A (pt) 1980-02-12
DE2825253A1 (de) 1979-12-13
IT7921762V0 (it) 1979-06-07
FI69830C (fi) 1986-05-26
IT7923368A0 (it) 1979-06-07
FR2427904B3 (fr) 1981-02-13

Similar Documents

Publication Publication Date Title
ES395738A1 (es) Procedimiento y sistema de accionamiento para la parada de un eje de trabajo en una posicion angular predeterminada.
GB1458094A (en) Method and apparatus for controlling hydraulic drifters
ES459648A1 (es) Procedimiento y dispositivo para el mando de la fuerza meca-nica, generada por via neumatica yno hidraulica.
ES430066A1 (es) Perfeccionamientos en dispositivos tensores, especialmente en un tornillo de apriete para maquinas.
EP0358770A4 (en) Electric powder molding machine
ES473241A1 (es) Una bomba de membrana perfeccionada
FR2427904A3 (fr) Presse hydraulique pour poudres et charges explosives
ES8607704A1 (es) Prensa de lagar con doble piston y accion alternativa
GB1549795A (en) Method for setting the length of the forging stroke in forging presses using v-dies as forging tools and a control device therefor
ES8405490A1 (es) Cilindro de trabajo de doble efecto, accionado por un medio a presion
SE8600068D0 (sv) Sett och anordning for overforing av tryck
CA987557A (en) Fluid control for ram and anvil fastener assembling apparatus
FR2401407A1 (fr) Procede et systeme de calcul de la charge d'un engin de levage ramenee au crochet d'une grue
JPS526890A (en) Speed control device for an apparatus driven by oil pressure
GB1398048A (en) Presses
JPS52109230A (en) Device for controlling steering force of power steering apparatus
FR2247344A1 (en) Mechanical press ram stroke regulator - has speed sensor with armature formed by secondary system of linear motor
FR2291346A1 (fr) Machine a pistons radiaux
JPS5482589A (en) Electro-hydraulic servo motor
GB1099192A (en) Improvements relating to feeding devices for power presses or like machine tools
GB2003295A (en) Method and apparatus for controlling a hydraulic screw press
NL7402419A (en) Device for cutting disc out of sheet metal - has pressing nut forcing cutting block through sheet into second cutting block
ES8201306A1 (es) Procedimiento para la carga de un modulo de retardo pirotec-nico
JPS53119529A (en) Power steering device
JPS53128001A (en) Input controlling mechanism of hydraulic pump apparatus