GB699120A - Metal extrusion - Google Patents

Metal extrusion

Info

Publication number
GB699120A
GB699120A GB7639/51A GB763951A GB699120A GB 699120 A GB699120 A GB 699120A GB 7639/51 A GB7639/51 A GB 7639/51A GB 763951 A GB763951 A GB 763951A GB 699120 A GB699120 A GB 699120A
Authority
GB
United Kingdom
Prior art keywords
layers
layer
glass
ingot
cellular
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
GB7639/51A
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.)
COMPTOIR IND ETIRAGE
Original Assignee
COMPTOIR IND ETIRAGE
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 COMPTOIR IND ETIRAGE filed Critical COMPTOIR IND ETIRAGE
Publication of GB699120A publication Critical patent/GB699120A/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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied

Abstract

699,120. Extruding. COMPTOIR INDUSTRIEL D'ETIRAGE ET PROFILAGE DE METAUX. April 2, 1951 [May 3, 1950], No. 7639/51. Class 83 (iv). A method for hot extruding metals consists in inserting between the ingot and the die a non-homogeneous lubricating material made up of welded layers of vitreous material having a thermal diffusivity which varies from one layer to another and which partly or completely melts but remains viscous when submitted to the heat of the ingot. The non-homogeneous material may be in the form of a cylinder made of a number of glass layers welded together. The layers may be of multi-cellular or fritted glass of varying densities the layer of highest density being also the layer of highest diffusivity. Layers of multi-cellular glass may also be interposed between layers of fritted or solid glass. The lubricating material is placed between the die and the ingot with the layer of high diffusivity nearest to the ingot. The material may be made by placing two layers of glass grains each layer of different grain size in a mould the upper layer of smaller grain being interspersed with fine grains of a carbonaceous material which will develop gas upon heating. The mould is heated to a temperature sufficient to fuse the layers together and form an upper layer of multi-cellular glass and a lower layer of fritted glass. Specifications 607,285 and 661,555 are referred to.
GB7639/51A 1950-05-03 1951-04-02 Metal extrusion Expired GB699120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR699120X 1950-05-03

Publications (1)

Publication Number Publication Date
GB699120A true GB699120A (en) 1953-10-28

Family

ID=9048052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7639/51A Expired GB699120A (en) 1950-05-03 1951-04-02 Metal extrusion

Country Status (1)

Country Link
GB (1) GB699120A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908385A (en) * 1958-03-05 1959-10-13 Babcock & Wilcox Co Method of lubricating a pierced extrusion billet
US2908587A (en) * 1954-04-12 1959-10-13 Babcock & Wilcox Co Method of coating a cylindrical metal element
US3059769A (en) * 1959-04-14 1962-10-23 Cefilac Extrusion lubrication
US3097742A (en) * 1959-11-05 1963-07-16 Mannesmann Ag Lubrication method for hot-extrusion press
US3345842A (en) * 1964-12-16 1967-10-10 Owens Illinois Inc Fluid film lubrication for extrusion of metal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908587A (en) * 1954-04-12 1959-10-13 Babcock & Wilcox Co Method of coating a cylindrical metal element
US2908385A (en) * 1958-03-05 1959-10-13 Babcock & Wilcox Co Method of lubricating a pierced extrusion billet
US3059769A (en) * 1959-04-14 1962-10-23 Cefilac Extrusion lubrication
US3097742A (en) * 1959-11-05 1963-07-16 Mannesmann Ag Lubrication method for hot-extrusion press
US3345842A (en) * 1964-12-16 1967-10-10 Owens Illinois Inc Fluid film lubrication for extrusion of metal

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