GB1278254A - Improvements in or relating to forming spherical bodies by pressing powder - Google Patents

Improvements in or relating to forming spherical bodies by pressing powder

Info

Publication number
GB1278254A
GB1278254A GB3049768A GB3049768A GB1278254A GB 1278254 A GB1278254 A GB 1278254A GB 3049768 A GB3049768 A GB 3049768A GB 3049768 A GB3049768 A GB 3049768A GB 1278254 A GB1278254 A GB 1278254A
Authority
GB
United Kingdom
Prior art keywords
powder
die
chamfer
sphere
compacted
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
GB3049768A
Inventor
Peter James Allsopp
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 GB3049768A priority Critical patent/GB1278254A/en
Publication of GB1278254A publication Critical patent/GB1278254A/en
Expired 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
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

1278254 Moulding spherical powder bodies UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 Sept 1969 [26 June 1968] 30497/68 Heading B5A In the compression moulding of spherical bodies from powders, e.g. of sinterable UO 2 spherical bodies, between two opposed relatively movable members each whereof has a hemispherical body defining concavity, uneven compaction is avoided by providing at least one of the members with a chamfer externally of the concavity and directed away from an opposed surface of the other member surrounding the concavity whereby, as the members move together, the powder flows outwardly of the cavity into a bounded region and is progressively compacted between the chamfer and the opposed surface. In the Fig. 2 embodiment, a sphere 18 is compacted between a stationary lower die 11 and an upper punch 9, provided with the chamfer 14, which is displaced theretowards through the powder 21 located in a bounded region 16 defined within a member 15. After removal of the punch 9, the sphere 18 is separated from the surrounding progressively compacted powder 17 by upward displacement of a die ejector 13, whereafter the member 15 is displaced laterally of the die 11 for ejection therefrom of the sphere 18 and compacted powder 17, by a downwardly movable ejector. The flash surrounding the sphere is removed by tumbling. In other embodiments, the chamfer may alternatively be provided on the stationary die, or on both the punch and on the die which is also provided with an ejector (not shown) for the progressively compacted material.
GB3049768A 1968-06-26 1968-06-26 Improvements in or relating to forming spherical bodies by pressing powder Expired GB1278254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3049768A GB1278254A (en) 1968-06-26 1968-06-26 Improvements in or relating to forming spherical bodies by pressing powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3049768A GB1278254A (en) 1968-06-26 1968-06-26 Improvements in or relating to forming spherical bodies by pressing powder

Publications (1)

Publication Number Publication Date
GB1278254A true GB1278254A (en) 1972-06-21

Family

ID=10308605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049768A Expired GB1278254A (en) 1968-06-26 1968-06-26 Improvements in or relating to forming spherical bodies by pressing powder

Country Status (1)

Country Link
GB (1) GB1278254A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241919A (en) * 1990-03-12 1991-09-18 Marconi Electronic Devices Method of manufacture
WO2003051561A1 (en) * 2001-12-14 2003-06-26 Tomsky Politekhnichesky Universitet Method for pressing articles from powder materials and a mould for carrying out said method
WO2007068723A1 (en) * 2005-12-16 2007-06-21 Commissariat A L'energie Atomique Device for shaping compactable material and method for using the device
CN106420359A (en) * 2016-12-18 2017-02-22 宁秀芬 Traditional Chinese medicine pill manufacturing robot
CN111070386A (en) * 2019-12-31 2020-04-28 郑州华隆机械制造有限公司 Refractory ball forming equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241919A (en) * 1990-03-12 1991-09-18 Marconi Electronic Devices Method of manufacture
US5122311A (en) * 1990-03-12 1992-06-16 Marconi Electronic Devices Limited Method of manufacture
GB2241919B (en) * 1990-03-12 1993-06-02 Marconi Electronic Devices Method of manufacture
WO2003051561A1 (en) * 2001-12-14 2003-06-26 Tomsky Politekhnichesky Universitet Method for pressing articles from powder materials and a mould for carrying out said method
WO2007068723A1 (en) * 2005-12-16 2007-06-21 Commissariat A L'energie Atomique Device for shaping compactable material and method for using the device
FR2894871A1 (en) * 2005-12-16 2007-06-22 Commissariat Energie Atomique DEVICE FOR SHAPING COMPACTABLE MATERIAL AND METHOD OF USING THE DEVICE
CN106420359A (en) * 2016-12-18 2017-02-22 宁秀芬 Traditional Chinese medicine pill manufacturing robot
CN111070386A (en) * 2019-12-31 2020-04-28 郑州华隆机械制造有限公司 Refractory ball forming equipment

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee