US3393820A - Multi-wall high pressure chambers - Google Patents

Multi-wall high pressure chambers Download PDF

Info

Publication number
US3393820A
US3393820A US524739A US52473966A US3393820A US 3393820 A US3393820 A US 3393820A US 524739 A US524739 A US 524739A US 52473966 A US52473966 A US 52473966A US 3393820 A US3393820 A US 3393820A
Authority
US
United States
Prior art keywords
wall
forces
chamber
high pressure
cylinder
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 - Lifetime
Application number
US524739A
Other languages
English (en)
Inventor
Jr Francis J Fuchs
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to US524739A priority Critical patent/US3393820A/en
Priority to GB3933/67A priority patent/GB1180063A/en
Priority to FR93359A priority patent/FR1509816A/fr
Application granted granted Critical
Publication of US3393820A publication Critical patent/US3393820A/en
Assigned to AT & T TECHNOLOGIES, INC., reassignment AT & T TECHNOLOGIES, INC., CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JAN. 3,1984 Assignors: WESTERN ELECTRIC COMPANY, INCORPORATED
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J12/00—Pressure vessels in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/007—Hydrostatic extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C27/00—Containers for metal to be extruded
    • 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
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • B30B11/002—Isostatic press chambers; Press stands therefor

Definitions

  • a further expedient to obviate the difliculty of working with high pressures includes a wall construction consisting of a plurality of concentric wall members spaced apart so that pressurized fluid may be introduced between the wall sections to counteract the effects of radial expansion; e.g. see applicants co-pending application Serial No. 436,128, filed March 1, 1965.
  • Still another solution to the problem of counteracting the detrimental eifects of high pressures is to provide a chamber surrounded by a series of concentric walls together with successively effective facilities to transfer the counteraction of the radial forces from one wall section to the next, e.g. see applicants co-pending application Ser. No. 512,641 filed Dec. 9, 1965.
  • An object of this invention resides in a new and improved multi-wall high pressure chamber.
  • An additional object of the invention is the provision of a multi-wall high pressure forming chamber wherein axial forces generated Within an inner wall are utilized to impress axial forces on the other walls while simultaneously transforming components of these forces into radial forces which oppose the radial expansion of the respective walls.
  • a further object of the invention resides in the tele scopic arrangement of the wall sections with facilities between each pair of wall sections for converting forces tending to slide one wall over another into forces acting in a transverse direction to oppose forces acting against an interior wall section.
  • the present inice vention contemplates a high pressure chamber having telescoping wall sections together with facilities. interposed between the wall sections, responding to axial forces within an inner wall section for converting components of these forces into radial forceslwhich oppose the expansion of the inner wall section.
  • Each wall section has spaced inwardly and outwardly extending projections which cooperate to support each other and the interposed facilities.
  • These facilities may comprise ring-like members constructed of resilient material.
  • FIG. 1 is a side view partially in section, showing a high pressure forming chamber having a multi-wall construction embodying the principles of the present invention
  • FIG. 2 is a side view similar to FIG. 1, particularly illustrating exaggerations of axial displacements of the walls during a high pressure forming operation;
  • FIG. 3 is a cross sectional view taken along line 3--3 of FIG. 2 depicting force vectors acting on the walls during the forming operation.
  • FIG. 1 there is shown an inner cylindrical forming block 10 having a cylindrical chamber 11.
  • Chamber 11 is defined by a wall section 12 converging at its lower extremity in a shoulder 13 which, in turn, terminates in an extrusion orifice 14.
  • a billet 16 may be positioned on the shoulder 13 and extruded through the orifice 14, upon application of pressurized fluid to the chamber 11.
  • the extrusion orifice 14 flares out into a receiving chamber 17.
  • a pair of rams 18 and 19 are provided.
  • Ram 18 is connected to a piston rod 21 extending into a high pressure fluid cylinder 23.
  • Ram 19 is connected to a piston rod 24 extending into a second high pressure cylinder 26.
  • Suitable seals 27 and 28 are provided to confine the fluid within the chambers 11 and 17 Considering now the facilities which are utilized to compensate for the radial expansion forces generated within the chamber 11, there is provided a plurality of concentric bands 31 and 32 having inwardly projecting flanges 33 and outwardly projecting flanges 34.
  • the wall section 12 is provided with a flange 36 which engages the upper portion of a compressible or pressure transmitting member 37.
  • the lower portion of the compressible member 37 rests against the inner flange 33.
  • This compressible member 37 may be composed of a viscous liquid, neoprene, indium, or other materials which are fluid, elastic, or. resilient under pressure.
  • Similar members 38 and 39 are interposed between the other outwardly and inwardly projecting flanges 33 and 34.
  • Surrounding the outer member 39 is a ring or cylindrical band 41 having an inwardly projecting flange 42 for supporting the outer compressible member 39.
  • the outer and inner rims of the respective flanges abut the inner and outer walls of the forming block 10 and the concentric bands 31, 32, and 41.
  • outer cylinder 41 rests-on a stationary support frame43. It may be thus appreciated that the support frame 43 supports the outer cylindrical band 41 and the interposed members 39, 38, and 37, the concentric bands 32 and 31, and the forming block 10.
  • the wall 12 and bands 31, 32, and 41 are shown in a cylindrical or circular configuration. It is to be understood that these members may be of other geometrical configuration such as, rectangles or squares.
  • the ram 18 is withdrawn and a billet 16 positioned on the shoulder 13 over the extrusion orifice 14. Fluids is introduced into the chambers 11 and 17 and the rams 18 and 19 move toward each other by operation of the fluid cylinders 23 and 26 to pressurize the fluid within the chambers. The fluid is pressurized to such an extent as to render the billet 16 ductile. The ram 19 is then withdrawn resulting in a pressure differential existing between the fluid in the chamber 11 and in the chamber 17. The billet is thereupon extruded through the orifice 14.
  • ductile materials such as copper, may be formed by use of lower pressures.
  • the pressurized fluid in the chamber 11 has a force component acting in a longitudinal or axial direction as indicated by the vectors A (FIG. 2). These longitudinal forces are transferred through the block to the flange 36 to act against the compressible member 37 as indicated by the force vectors B. Application of compression forces to member 37 result in the exertion of radial forces acting inwardly and outwardly as represented by the force vectors C and D.
  • the pressurized fluid in the chamber 11 acts against the wall section 12 tending to expand this wall section, whereupon this expansion is counteracted by the force vectors C acting inwardly against the outer surface of the wall section.
  • the axial force vectors B results in the application of similar forces to the flanges 33 and 34 which function to apply compression forces to the members 38 and 39 thereby transform ing these axial forces into outwardly and inwardly forces which further act to oppose the expansion of the wall section 12.
  • the forming block 10 and the concentric members 31 and 32 will be urged to move in telescoping fashion to axial positions as shown in exaggeration in FIG. 2. Inasmuch as the outer cylindrical member 41 is resting on a stationary block 43, this member will not move.
  • a pressure vessel comprising:
  • said rings mounted for relative axial movement and provided with members defining a space therebetween;
  • a pressure vessel comprising:
  • said members movable toward each other to compress said compressible member to case said member to exert supporting pressure against said inner cylinder to assist said inner cylinder in containing said pressurized medium.
  • a pressure vessel comprising:
  • said flanges for compressing said compressible pressure transmitting media to cause said media to develop and apply radial support force to the inner cylinders of said plurality.
  • a ressure vessel comprising:
  • a cylindrical chamber having an inwardly projecting circumferential section for receiving fluid, said chamber having a radially extending flange,
  • each cylinder having an inwardly projecting flange to abut the outer surface of the next succeeding inner cylinder, and an outwardly projecting flange to abut the inner surface of the next succeeding outer cylinder,
  • references Cited UNITED STATES PATENTS means for supporting the outer band, means interposed between each outwardly extending 2 E92 flange and each associated inwardly extending flange 10 3243985 4/1966 5 on the next succeeding band for supporting each succeeding inner band and the inner cylinder, and means for applying forces to said shoulder which are successively transferred by the flanges and the inter- RICHARD J. HERBST, Primary Examiner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
US524739A 1966-02-03 1966-02-03 Multi-wall high pressure chambers Expired - Lifetime US3393820A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US524739A US3393820A (en) 1966-02-03 1966-02-03 Multi-wall high pressure chambers
GB3933/67A GB1180063A (en) 1966-02-03 1967-01-26 Improvements in or relating to High Pressure Chambers.
FR93359A FR1509816A (fr) 1966-02-03 1967-02-01 Chambres de formage à très haute pression et parois multiples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US524739A US3393820A (en) 1966-02-03 1966-02-03 Multi-wall high pressure chambers

Publications (1)

Publication Number Publication Date
US3393820A true US3393820A (en) 1968-07-23

Family

ID=24090476

Family Applications (1)

Application Number Title Priority Date Filing Date
US524739A Expired - Lifetime US3393820A (en) 1966-02-03 1966-02-03 Multi-wall high pressure chambers

Country Status (3)

Country Link
US (1) US3393820A (fr)
FR (1) FR1509816A (fr)
GB (1) GB1180063A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478920A (en) * 1968-10-14 1969-11-18 Hahn & Clay Pressure vessel closure
US4057162A (en) * 1974-12-06 1977-11-08 Siempelkamp Giesserei Kg Pressure vessel for nuclear reactor
DE2733048A1 (de) * 1976-07-23 1978-01-26 Schwarz Walter Rohrverbindung und verfahren zu ihrer herstellung
DE3137083A1 (de) * 1980-09-26 1982-04-22 Aktiebolaget Bofors, 69180 Bofors Kugelfoermiger behaelter oder kammer
FR2896301A1 (fr) * 2006-01-13 2007-07-20 Electricite De Marseille Sa Dispositif de regulation en pression d'un reservoir comprenant plusieurs enceintes emboitees les unes dans les autres et remplies de gaz comprime
CN103161952A (zh) * 2011-12-08 2013-06-19 牟彦任 多层高压容器
WO2021072563A1 (fr) * 2019-10-14 2021-04-22 CASTRO ARRIAGADA, Luis Osvaldo Chambre ou tube multiparoi

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136952A1 (de) * 1981-09-17 1983-04-21 Erich 4000 Düsseldorf Görgens Mehrschalige wand

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667525A (en) * 1900-06-08 1901-02-05 Carl Huber Internal-pressure-resistance cylinder.
US2558035A (en) * 1947-07-05 1951-06-26 Percy W Bridgman Method and apparatus for cold drawing
US3243985A (en) * 1964-09-28 1966-04-05 Atomic Energy Authority Uk Extrusion apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667525A (en) * 1900-06-08 1901-02-05 Carl Huber Internal-pressure-resistance cylinder.
US2558035A (en) * 1947-07-05 1951-06-26 Percy W Bridgman Method and apparatus for cold drawing
US3243985A (en) * 1964-09-28 1966-04-05 Atomic Energy Authority Uk Extrusion apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478920A (en) * 1968-10-14 1969-11-18 Hahn & Clay Pressure vessel closure
US4057162A (en) * 1974-12-06 1977-11-08 Siempelkamp Giesserei Kg Pressure vessel for nuclear reactor
DE2733048A1 (de) * 1976-07-23 1978-01-26 Schwarz Walter Rohrverbindung und verfahren zu ihrer herstellung
DE3137083A1 (de) * 1980-09-26 1982-04-22 Aktiebolaget Bofors, 69180 Bofors Kugelfoermiger behaelter oder kammer
FR2896301A1 (fr) * 2006-01-13 2007-07-20 Electricite De Marseille Sa Dispositif de regulation en pression d'un reservoir comprenant plusieurs enceintes emboitees les unes dans les autres et remplies de gaz comprime
CN103161952A (zh) * 2011-12-08 2013-06-19 牟彦任 多层高压容器
WO2021072563A1 (fr) * 2019-10-14 2021-04-22 CASTRO ARRIAGADA, Luis Osvaldo Chambre ou tube multiparoi

Also Published As

Publication number Publication date
FR1509816A (fr) 1968-01-12
GB1180063A (en) 1970-02-04

Similar Documents

Publication Publication Date Title
US3379043A (en) Pressure vessel for forming apparatus
US3393820A (en) Multi-wall high pressure chambers
US2861530A (en) Method and apparatus for making metal articles
US3520163A (en) Method of and an apparatus for bulge forming
US3358488A (en) Method and apparatus for increasing the ductility of an article during a forming operation
US1602282A (en) Self-hooping of metal tubes
US3390563A (en) Concentric band high pressure forming chambers
US2671339A (en) Tube testing machine
US4237713A (en) Apparatus for producing a tube with successive corrugations
US3604060A (en) Press tool for manufacturing rod and tubes by compressing powder
US2339959A (en) Shell drawing press
US3559436A (en) Press for hydrostatic extrusion
US1710776A (en) Method of making hollow metallic articles
US3934442A (en) Press for hydrostatic extrusion
US3484806A (en) Hydrostatic extrusion apparatus
US3892114A (en) Containers for use in extrusion press and method of manufacturing the same
ES367178A1 (es) Metodo y aparato para reducir solicitaciones asimetricas enuna pared lateral de chapa de metal generalmente cilindrica de un recipiente o una porcion de tal pared lateral.
US3512385A (en) Bellows forming machine
ES332546A2 (es) Perfeccionamientos en los procedimientos de configuracion de los metales bajo presion hidrostatica elevada.
US3577590A (en) High-pressure chamber
US2044710A (en) Method of making hollow articles
GB1325759A (en) Apparatus and method for the formation of tubular articles
US3564885A (en) Flange forming apparatus
GB1399597A (en) Drawing die assemblies
US2962408A (en) Method for producing sockets on pipes

Legal Events

Date Code Title Description
AS Assignment

Owner name: AT & T TECHNOLOGIES, INC.,

Free format text: CHANGE OF NAME;ASSIGNOR:WESTERN ELECTRIC COMPANY, INCORPORATED;REEL/FRAME:004251/0868

Effective date: 19831229