GB1405749A - Extrusion of powder billets - Google Patents

Extrusion of powder billets

Info

Publication number
GB1405749A
GB1405749A GB2917571A GB2917571A GB1405749A GB 1405749 A GB1405749 A GB 1405749A GB 2917571 A GB2917571 A GB 2917571A GB 2917571 A GB2917571 A GB 2917571A GB 1405749 A GB1405749 A GB 1405749A
Authority
GB
United Kingdom
Prior art keywords
glass
powder
billet
coating
coated
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
GB2917571A
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.)
Kvaerner Engineering and Construction UK Ltd
Original Assignee
Davy International Ltd
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 Davy International Ltd filed Critical Davy International Ltd
Priority to GB2917571A priority Critical patent/GB1405749A/en
Publication of GB1405749A publication Critical patent/GB1405749A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1258—Container manufacturing
    • B22F3/1266—Container manufacturing by coating or sealing the surface of the preformed article, e.g. by melting

Abstract

1405749 Extruding DAVY INTERNATIONAL Ltd 22 Sept 1972 [22 June 1971] 29175/71 Heading B3P [Also in Divisions C7 and B5] An extruded product is made by hot extruding a billet formed of partially compacted metal powder coated with a surface sealant. The sealang may be glass, salt or a ductile metal. The powder is compacted isostatically in a rubber or other elastomeric material bag 1 in a pressure chamber 4. The coating may be applied by dipping the compact in a bath of molten salt or glass or by spraying with glass. In the dipping case two layers of glass of different melting points are applied. Alternatively the inside of the bag can be sprayed with glass before the compaction. If a ductile metal is used for the coating it is in powder form with a particle size one third of the size of the powder particles of the billet. The coated billet is heated in a non-oxidizing atmosphere of hydrogen or inert gas before extrusion. The billet may be made of steel powder.
GB2917571A 1971-06-22 1971-06-22 Extrusion of powder billets Expired GB1405749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2917571A GB1405749A (en) 1971-06-22 1971-06-22 Extrusion of powder billets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2917571A GB1405749A (en) 1971-06-22 1971-06-22 Extrusion of powder billets

Publications (1)

Publication Number Publication Date
GB1405749A true GB1405749A (en) 1975-09-10

Family

ID=10287334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2917571A Expired GB1405749A (en) 1971-06-22 1971-06-22 Extrusion of powder billets

Country Status (1)

Country Link
GB (1) GB1405749A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152106A (en) * 1979-05-15 1980-11-27 Antonio Furaga Domingesu Ramon Production of lighter stone
EP0202886A1 (en) * 1985-05-23 1986-11-26 Inco Alloys International, Inc. Canless method for hot working gas atomized powders
CN104741612A (en) * 2014-11-26 2015-07-01 内蒙古北方重工业集团有限公司 Powder high temperature alloy bar extrusion method
WO2019011359A1 (en) * 2017-07-13 2019-01-17 Forschungszentrum Jülich GmbH Method for sintering metals, non-oxide ceramics and other oxidation-sensitive materials

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152106A (en) * 1979-05-15 1980-11-27 Antonio Furaga Domingesu Ramon Production of lighter stone
JPS581161B2 (en) * 1979-05-15 1983-01-10 ラモン アントニオ フラガ ドミンゲス How to make lighter stone
EP0202886A1 (en) * 1985-05-23 1986-11-26 Inco Alloys International, Inc. Canless method for hot working gas atomized powders
CN104741612A (en) * 2014-11-26 2015-07-01 内蒙古北方重工业集团有限公司 Powder high temperature alloy bar extrusion method
WO2019011359A1 (en) * 2017-07-13 2019-01-17 Forschungszentrum Jülich GmbH Method for sintering metals, non-oxide ceramics and other oxidation-sensitive materials
CN110997194A (en) * 2017-07-13 2020-04-10 于利奇研究中心有限公司 Method for sintering metals, non-oxide ceramics and other easily oxidized materials
JP2020527191A (en) * 2017-07-13 2020-09-03 フォルシュングスツェントルム・ユーリッヒ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Sintering methods for metals, non-oxide ceramics and other oxidation sensitive materials
US11065686B2 (en) 2017-07-13 2021-07-20 Forschungszentrum Juelich Gmbh Method for sintering metals, non-oxide ceramics and other oxidation-sensitive materials

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Legal Events

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