GB1188116A - Improvements in or relating to Hydrostatic Extrusion Processes - Google Patents

Improvements in or relating to Hydrostatic Extrusion Processes

Info

Publication number
GB1188116A
GB1188116A GB41332/66A GB4133266A GB1188116A GB 1188116 A GB1188116 A GB 1188116A GB 41332/66 A GB41332/66 A GB 41332/66A GB 4133266 A GB4133266 A GB 4133266A GB 1188116 A GB1188116 A GB 1188116A
Authority
GB
United Kingdom
Prior art keywords
pressure
hydrostatic pressure
die
piston
accumulator
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
Application number
GB41332/66A
Inventor
Peter John Thompson
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB41332/66A priority Critical patent/GB1188116A/en
Priority to US666295A priority patent/US3455134A/en
Priority to DE19671602378 priority patent/DE1602378A1/en
Priority to CH1283467A priority patent/CH463438A/en
Priority to CH671669A priority patent/CH488500A/en
Publication of GB1188116A publication Critical patent/GB1188116A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

1,188,116. Extruding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 14 Sept., 1967 [15 Sept., 1966], No. 41332/66. Heading B3P. A billet 65 with a tapered rear end 67 is extruded through a die 52 by hydrostatic pressure supplemented by direct mechanical loading; the hydrostatic pressure being reduced gradually to atmospheric as the tapered end passes through the die. The direct loading may be applied to the extruded product by a drawing device 66 or pressure may be applied by a ram to the rear end of the billet. Container 51 is connected by passage 53 to a pressure liquid cylinder 49 containing a plunger 48 and sealing gland 50. Plunger 48 is connected to a double-acting piston 46 working in cylinder 43. The underside 56 of piston 46 is supplied with pressure liquid by supply means 57 through metering valve 58, and is also connected through metering valve 59 with an hydraulic accumulator 60, 62 loaded by a gas bottle 64. The upper side of piston 46 is supplied with gas pressure through duct 55. In operation, this gas pressure causes the piston 46 and plunger 48 to move downwardly and pressurize the liquid in containers 49, 51, whilst liquid in space 56 is displaced through metering valve 58. The hydrostatic pressure produced in container 51 supplemented by the pull of drawing device 66 effects the extrusion of the larger diameter portion of the billet through die 52. As the tapered end 67 passes into the die, the hydrostatic pressure in cylinder 51 is gradually reduced by closing valve 58 and opening valve 59 whereby the accumulator 60 applies upward pressure to piston 46. As the small diameter end portion 66 enters the die the hydrostatic pressure has been reduced to atmospheric whereby extrusion is then effected wholly by the drawing device 66. Alternatively the hydrostatic pressure may be reduced in steps (C<SP>1</SP>-X) (D 1 -y). Fig. 2 (not shown). In another embodiment, Fig. 1 (not shown), the container (1) is connected directly to the hydraulic chamber (13) of a gas loaded accumulator. The gradual or stepwise reduction in hydrostatic pressure is caused by reducing the gas pressure in the accumulator.
GB41332/66A 1966-09-15 1966-09-15 Improvements in or relating to Hydrostatic Extrusion Processes Expired GB1188116A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB41332/66A GB1188116A (en) 1966-09-15 1966-09-15 Improvements in or relating to Hydrostatic Extrusion Processes
US666295A US3455134A (en) 1966-09-15 1967-09-08 Hydrostatic extrusion processes
DE19671602378 DE1602378A1 (en) 1966-09-15 1967-09-14 Method and device for hydrostatic extrusion
CH1283467A CH463438A (en) 1966-09-15 1967-09-14 Hydrostatic extrusion process
CH671669A CH488500A (en) 1966-09-15 1969-05-02 Hydrostatic extrusion process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41332/66A GB1188116A (en) 1966-09-15 1966-09-15 Improvements in or relating to Hydrostatic Extrusion Processes

Publications (1)

Publication Number Publication Date
GB1188116A true GB1188116A (en) 1970-04-15

Family

ID=10419198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41332/66A Expired GB1188116A (en) 1966-09-15 1966-09-15 Improvements in or relating to Hydrostatic Extrusion Processes

Country Status (4)

Country Link
US (1) US3455134A (en)
CH (1) CH463438A (en)
DE (1) DE1602378A1 (en)
GB (1) GB1188116A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747384A (en) * 1971-03-18 1973-07-24 Asea Ab Combined method of area reduction
US3810374A (en) * 1972-02-07 1974-05-14 A Zeitlin Apparatus and method for hydrostatic extrusion
RU2052308C1 (en) * 1990-03-19 1996-01-20 Юрий Петрович Кузько Apparatus for hydromechanical forming of parts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364716A (en) * 1965-07-07 1968-01-23 Fielding & Platt Ltd Extrusion apparatus
US3392562A (en) * 1966-04-08 1968-07-16 Western Electric Co Billet and method of extrusion thereof

Also Published As

Publication number Publication date
CH463438A (en) 1968-10-15
US3455134A (en) 1969-07-15
DE1602378A1 (en) 1970-03-26

Similar Documents

Publication Publication Date Title
GB1291367A (en) Improvements in liquid pressurizing devices
GB1234286A (en)
GB954126A (en) Improvements in or relating to extrusion presses
GB1188116A (en) Improvements in or relating to Hydrostatic Extrusion Processes
GB1312703A (en) Extrusion press
GB1015185A (en) Extrusion press
GB1041810A (en) Pneumatic-hydraulic feeding unit
GB1201485A (en) Methods of and apparatus for extruding solid plastic materials
GB1176591A (en) Improvements in Hydro-Mechanical Deep Drawing
GB1111351A (en) Improvements in or relating to hydrostatic extrusion processes
GB1318188A (en) Apparatus for delivering paste and the like
GB1201464A (en) High pressure containers for cyclically varying pressures
GB1096522A (en) Improvements in hydrostatic extrusion apparatus
US3043425A (en) Extrusion press and control therefor
GB770871A (en) Improvements in or relating to extrusion apparatus
ES363911A2 (en) Plugging device for extrusion container
GB1263490A (en) Improvements in hydrostatic extrusion apparatus
GB1109841A (en) Improvements in or relating to hydrostatic extrusion apparatus
GB821909A (en) Cable-sheathing press
GB1104164A (en) Method and apparatus for making pellets
GB1099912A (en) Hydraulic extrusion apparatus
GB1144364A (en) Improvements relating to hydrostatic high pressure apparatus
GB1161669A (en) A Method of and Apparatus for Filling Pressurised Spray Containers with Propellent Gases
GB1043834A (en) Improvements in or relating to extrusion
GB1193440A (en) Improvements in or relating to high pressure extrusion apparatus

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees