CH283501A - Hot-spinning process for metals. - Google Patents
Hot-spinning process for metals.Info
- Publication number
- CH283501A CH283501A CH283501DA CH283501A CH 283501 A CH283501 A CH 283501A CH 283501D A CH283501D A CH 283501DA CH 283501 A CH283501 A CH 283501A
- Authority
- CH
- Switzerland
- Prior art keywords
- ingot
- spinning process
- fiberglass
- process according
- sub
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/12—Glass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/241—Manufacturing joint-less pipes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/242—Hot working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/243—Cold working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/245—Soft metals, e.g. aluminum
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/246—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/247—Stainless steel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/08—Solids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4981—Utilizing transitory attached element or associated separate material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4981—Utilizing transitory attached element or associated separate material
- Y10T29/49812—Temporary protective coating, impregnation, or cast layer
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Forging (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
<B>Procédé de filage à chaud de métaux.</B> On a décrit dans le brevet suisse N 234397 pour Procédé de filage à chaud de métaux un procédé de filage à chaud de métaux diffi cilement filables, dans lequel on interpose entre le lingot et l'outillage de la presse, en particulier la filière, une matière fondant partiellement ou totalement sous l'effet de la chaleur du lingot tout. en restant visqueuse, par exemple un verre, un oxyde, un sel ou un laitier répondant à ces conditions.
Ainsi qu'il a été exposé dans les brevets additionnels suisses N e 238086 et 253884, il est souvent avantageux de donner à la filière ou au fond du conteneur diverses formes qui <B>ne</B> permettent plus d'assimiler la partie située du côté du lingot à une surface plane. Mais certaines difficultés se présentent lorsqu'on applique sur cette surface une plaque de verre plane.
L'expérience montre en particulier que le choc mécanique et thermique entre le lingot et la plaque de verre arrive à briser cette dernière en de nombreux morceaux qui ne recouvrent plus la filière d'une manière uni forme au début de l'opération de filage. Dans ces conditions, certaines parties de la filière ne sont plus ou sont mal lubrifiées et l'on constate l'apparition d'usures souvent dé crites.
La présente invention, due aux travaux de M. -Jacques Sejournet, et qui permet de remédier à ces inconvénients, constitue un perfectionnement au procédé faisant l'objet du brevet susvisé et de ses additions. Elle consiste en un procédé de filage à chaud de métaux par interposition, entre le lingot à filer et au moins une partie de l'outillage de la presse, d'une matière lubrifiante fondant partiellement ou totalement sous l'action de la, chaleur du lingot tout en restant vis queuse, de telle faon que, fondue,
cette ma tière forme entre le métal et l'outillage une couche lubrifiante s'écoulant. avec le métal pendant l'opération- de filage, procédé dans lequel au moins une partie de ladite matière est une masse fibreuse.
L'invention est de préférence réalisée en combinant pour la lubrification une ou plu sieurs plaques d'un matériau de lubrification fondant partiellement ou totalement sous l'ae- t.ion de la chaleur du lingot tout en restant visqueux avec un ou plusieurs paquets de fibres du même ou d'un autre matériau avant sensiblement. cette même qualité.
Elle donne des résultats particulièrement intéressants dans le cas où l'on utilise une ou plusieurs plaques de verre en combinaison avec un ou plusieurs paquets de fibre de verre. L'expérience montre que dans ces con ditions le choc thermique et mécanique est amorti et que, sous l'influence de la pression du lingot, le paquet de fibre de verre et la plaque de verre se déforment de manière con tinue et recouvrent. uniformément les di- verses parties de la filière et du porte-filière avant le commencement de l'opération de filage.
Tous les inconvénients dus à une lubrifi cation irrégulière disparaissent et l'on cons tate que les formes de filières ou de porte- filières les plus compliquées peuvent, par ce moyen, être convenablement lubrifiées.
Le mot paquet ne doit pas s'entendre ici d'un élément confectionné au préalable, mais simplement d'une certaine quantité de fibre, prélevée sur une masse en vrac et. ca ractérisée principalement par sa consistance et son poids.
On place de préférence un paquet de fibre de verre entre une plaque de verre et la filière. On peut aussi placer ce paquet entre le lingot et la, plaque de verre.
On peut également. placer une plaque de verre entre deux paquets de fibre de verre. On peut aussi interposer entre l'outillage de la presse et le lingot une ou plusieurs plaques de verre et un ou plusieurs paquets de fibre de verre dans un ordre quelconque.
On peut enfin placer, entre l'outillage de la. presse et le lingot, uniquement un paquet de fibre de verre de volume suffisant, sans interposition de plaque de verre.
Au dessin ci-joint, on a représenté deux exemples de réalisation de l'invention. Dans ce dessin: _ Fig. 1 représente la mise en place d'un paquet de fibre de verre entre la filière et la plaque de verre avant filage.
Fig. 2 représente une opération de filage dans laquelle on a préalablement interposé entre le lingot et la filière une plaque de verre entre deux paquets de fibre de verre.
Dans ces figures, 1 désigne le conteneur, 2 le poussoir, 3 le lingot, 4 le ou les paquets de fibre de verre, 5 la plaque de verre et 6 la filière creuse. Enfin, dans la fig. 2, 7 dé signe la barre filée.
Dans tous les cas le volume du paquet de fibre de verre doit, de préférence, être choisi d'autant plus grand que l'épaisseur totale des plaques de verre est phis faible. Ce volume doit être d'autant plus grand que la partie concave de la filière est elle- même plus grande.
Les exemples ci-dessous illustrent cette condition ExemplE, <I>1:</I> On a filé, sur une presse de<B>1500</B> tonnes, cinquante barres de section plate 45X 18 min à partir d'un lingot d'acier doux: ayant un diamètre de 145 mm, et, une longueur de 700 mm, dans un conteneur ayant un dia mètre de 155 mm. La filière creuse présen tait une concavité dont la profondeur était de 30 mm. On a utilisé pour la lubrification un paquet de fibre de verre ayant un dia mètre de 150 mm et une épaisseur de 50 mm placé contre la filière et une plaque de verre ayant un diamètre de 150 mm. et une épais seur de 3 mm placée contre le lingot.
On a obtenu des barres sans défauts et l'outillage n'avait subi aucune usure appré ciable.
<I>Exemple 2:</I> On a filé sur une presse de 600 tonnes soixante-cinq barres de section carrée 22X22 mm à partir d'un lingot d'acier demi- dur ayant un diamètre de 120 mm et une longueur de 600 mm dans un conteneur ayant un diamètre de 128 mm. La filière creuse pré sentait une concavité :dont la profondeur était de 12 mm.
On a utilisé, pour la lubrification, une plaque de verre ayant un diamètre de 120 mur et une épaisseur de 3,5 mm placée entre deux paquets .de fibre de verre ayant un diamètre de 120 mm et une épaisseur de 15 mm.
On a obtenu des barres sans défauts et l'outillage pouvait encore être utilisé pour le filage d'autres barres.
<B> Method for hot spinning of metals. </B> In Swiss patent No. 234397 for Method for hot spinning of metals, a process for hot spinning of difficult to spinnable metals has been described, in which the ingot and the tooling of the press, in particular the die, a material that partially or totally melts under the effect of the heat of the entire ingot. by remaining viscous, for example a glass, an oxide, a salt or a slag meeting these conditions.
As was explained in additional Swiss patents N e 238086 and 253884, it is often advantageous to give the die or the bottom of the container various shapes which <B> no </B> allow the part to be assimilated. located on the ingot side to a flat surface. However, certain difficulties arise when a flat glass plate is applied to this surface.
Experience shows in particular that the mechanical and thermal shock between the ingot and the glass plate manages to break the latter into numerous pieces which no longer cover the die in a uniform manner at the start of the spinning operation. Under these conditions, some parts of the die are no longer or are poorly lubricated and the appearance of often described wear is observed.
The present invention, due to the work of M. -Jacques Sejournet, and which overcomes these drawbacks, constitutes an improvement to the process forming the subject of the aforementioned patent and its additions. It consists of a process for hot spinning of metals by interposing, between the ingot to be extruded and at least part of the tooling of the press, a lubricating material which melts partially or completely under the action of the heat of the press. ingot while remaining viscous, in such a way that, when melted,
this material forms between the metal and the tool a lubricating layer which flows. with the metal during the spinning operation, in which process at least part of said material is a fibrous mass.
The invention is preferably carried out by combining for lubrication one or more plates of a lubricating material which melts partially or completely under the aeration of the heat of the ingot while remaining viscous with one or more packets of lubricating material. fibers of the same or another material before substantially. that same quality.
It gives particularly advantageous results in the case where one or more glass plates are used in combination with one or more bundles of fiberglass. Experience shows that under these conditions the thermal and mechanical shock is damped and that, under the influence of the ingot pressure, the fiberglass bundle and the glass plate continuously deform and overlap. the various parts of the die and the die holder evenly before the start of the spinning operation.
All the disadvantages due to irregular lubrication disappear and it is found that the more complicated shapes of dies or die holders can by this means be suitably lubricated.
The word packet should not be understood here of an element made beforehand, but simply of a certain quantity of fiber, taken from a bulk mass and. This is mainly characterized by its consistency and weight.
Preferably, a fiberglass bundle is placed between a glass plate and the die. This package can also be placed between the ingot and the glass plate.
We can also. place a glass plate between two bundles of fiberglass. It is also possible to interpose between the tooling of the press and the ingot one or more glass plates and one or more bundles of fiberglass in any order.
We can finally place, between the tools of the. press and ingot, only a fiberglass bundle of sufficient volume, without the interposition of glass plate.
In the accompanying drawing, two embodiments of the invention have been shown. In this drawing: _ Fig. 1 shows the placement of a fiberglass bundle between the die and the glass plate before spinning.
Fig. 2 shows a spinning operation in which a glass plate has been interposed between the ingot and the die beforehand between two bundles of fiberglass.
In these figures, 1 designates the container, 2 the pusher, 3 the ingot, 4 the fiberglass bundle (s), 5 the glass plate and 6 the hollow die. Finally, in fig. 2, 7 dice sign the drawn bar.
In all cases, the volume of the bundle of fiberglass should preferably be chosen all the greater as the total thickness of the glass plates is smaller. This volume must be all the greater as the concave part of the die is itself larger.
The examples below illustrate this condition Example, <I> 1: </I> We spun, on a <B> 1500 </B> ton press, fifty bars of 45X 18 min flat section from a mild steel ingot: having a diameter of 145 mm, and, a length of 700 mm, in a container having a diameter of 155 mm. The hollow die had a concavity with a depth of 30 mm. A bundle of glass fiber having a diameter of 150 mm and a thickness of 50 mm placed against the die and a glass plate having a diameter of 150 mm was used for the lubrication. and a thickness of 3 mm placed against the ingot.
Flawless bars were obtained and the tooling had not undergone any appreciable wear.
<I> Example 2: </I> Sixty-five bars of 22X22 mm square section were spun on a 600 ton press from a semi-hard steel ingot having a diameter of 120 mm and a length of 600 mm in a container having a diameter of 128 mm. The hollow die had a concavity: the depth of which was 12 mm.
A glass plate having a diameter of 120 walls and a thickness of 3.5 mm placed between two bundles of fiberglass having a diameter of 120 mm and a thickness of 15 mm was used for the lubrication.
Bars without defects were obtained and the tooling could still be used for the spinning of other bars.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1011338T | 1949-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH283501A true CH283501A (en) | 1952-06-15 |
Family
ID=9569840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH283501D CH283501A (en) | 1949-01-19 | 1949-12-07 | Hot-spinning process for metals. |
Country Status (6)
Country | Link |
---|---|
US (1) | US2630220A (en) |
CH (1) | CH283501A (en) |
DE (1) | DE813543C (en) |
FR (1) | FR1011338A (en) |
GB (1) | GB663357A (en) |
LU (1) | LU29834A1 (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126097A (en) * | 1964-03-24 | Sejournet | ||
US2893554A (en) * | 1944-11-10 | 1959-07-07 | Comptoir Ind Etirage | Method of extruding metals |
BE501438A (en) * | 1950-03-10 | |||
DE1117072B (en) * | 1951-03-29 | 1961-11-16 | Saint Gobain | Lubricants for hot drawing or hot pressing metals that are difficult to draw or press |
US2791924A (en) * | 1951-08-25 | 1957-05-14 | Babcock & Wilcox Co | Rotary piercing processes |
US2762115A (en) * | 1952-01-29 | 1956-09-11 | American Brass Co | Protecting hot extruded metal |
US2810478A (en) * | 1952-04-18 | 1957-10-22 | Comptoir Ind Etirage | Extrusion of hollow bodies |
US2737293A (en) * | 1953-03-23 | 1956-03-06 | Bridgeport Brass Co | Vitreous lubricated metal hot-working |
US2738062A (en) * | 1953-03-31 | 1956-03-13 | Babcock & Wilcox Co | Glass mat cutter for steel extrusion process |
US2806596A (en) * | 1953-05-07 | 1957-09-17 | Harry W Dodds | Metal extrusion process |
US2908384A (en) * | 1954-03-03 | 1959-10-13 | Babcock & Wilcox Co | Method of applying a particulate lubricant to a tubular extrusion billet |
US2908587A (en) * | 1954-04-12 | 1959-10-13 | Babcock & Wilcox Co | Method of coating a cylindrical metal element |
US2971644A (en) * | 1955-02-11 | 1961-02-14 | Cefilac | Extrusion dies |
DE1132880B (en) * | 1955-04-20 | 1962-07-12 | Cie Du Filage Des Metaux Et De | Auxiliary disc for hot extrusion of metal |
US2893555A (en) * | 1955-04-20 | 1959-07-07 | Comptoir Ind Etirage | Lubrication in the hot extrusion of metals |
US2946437A (en) * | 1955-05-31 | 1960-07-26 | Babcock & Wilcox Co | Extrusion of metal billets |
US3034642A (en) * | 1957-10-11 | 1962-05-15 | Int Nickel Co | Extrusion of metal |
US2908385A (en) * | 1958-03-05 | 1959-10-13 | Babcock & Wilcox Co | Method of lubricating a pierced extrusion billet |
US3015387A (en) * | 1958-04-29 | 1962-01-02 | Babcock & Wilcox Co | Method and apparatus for metal working |
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 |
US3488985A (en) * | 1965-08-25 | 1970-01-13 | Du Pont | Metal extrusion with solid fabric lubricant |
US3690135A (en) * | 1970-04-16 | 1972-09-12 | Johns Manville | Die pad for extruding hot metals |
US3818733A (en) * | 1972-07-17 | 1974-06-25 | Babcock & Wilcox Co | Piercing process |
IL141277A0 (en) | 2001-02-05 | 2002-03-10 | Rafi & Amos Metals Ltd | Modular doors |
US8230899B2 (en) | 2010-02-05 | 2012-07-31 | Ati Properties, Inc. | Systems and methods for forming and processing alloy ingots |
US9267184B2 (en) | 2010-02-05 | 2016-02-23 | Ati Properties, Inc. | Systems and methods for processing alloy ingots |
US10207312B2 (en) | 2010-06-14 | 2019-02-19 | Ati Properties Llc | Lubrication processes for enhanced forgeability |
US8789254B2 (en) | 2011-01-17 | 2014-07-29 | Ati Properties, Inc. | Modifying hot workability of metal alloys via surface coating |
KR20130139589A (en) * | 2012-06-13 | 2013-12-23 | 한국생산기술연구원 | Extrusion mold and manufacturing method of extruded product using buffer pad |
US9539636B2 (en) * | 2013-03-15 | 2017-01-10 | Ati Properties Llc | Articles, systems, and methods for forging alloys |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US567410A (en) * | 1896-09-08 | Apparatus for manufacturing hollow metal articles | ||
US2538917A (en) * | 1941-11-22 | 1951-01-23 | Comptoir Ind Etirage | Extrusion of metals |
-
1949
- 1949-01-19 FR FR1011338D patent/FR1011338A/en not_active Expired
- 1949-12-07 CH CH283501D patent/CH283501A/en unknown
- 1949-12-09 LU LU29834D patent/LU29834A1/xx unknown
- 1949-12-17 DE DEC304A patent/DE813543C/en not_active Expired
- 1949-12-19 US US133784A patent/US2630220A/en not_active Expired - Lifetime
- 1949-12-23 GB GB32980/49A patent/GB663357A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2630220A (en) | 1953-03-03 |
LU29834A1 (en) | 1950-07-28 |
DE813543C (en) | 1951-09-13 |
FR1011338A (en) | 1952-06-23 |
GB663357A (en) | 1951-12-19 |
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