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公开(公告)号：SE8400586L
公开(公告)日：1985-08-07
申请号：SE8400586
申请日：1984-02-06
Applicant: ASEA AB
Inventor： LARSSON H G , WESTMAN E , OSTLUND A
Abstract: A ladle or tundish has a side wall comprising a refractory lining adapted to be contacted by molten metal, and a concrete wall surrounding the lining and reinforced by metal wires, the side wall being free from a metal shell. Therefore the side wall is relatively permeable to the field of an induction heating coil on the outside of the side wall.
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公开(公告)号：SE417580B
公开(公告)日：1981-03-30
申请号：SE7901734
申请日：1979-02-27
Applicant: ASEA AB
Inventor： LARSSON H G , WESTMAN E
Abstract: A method for manufacturing billets intended to be subsequently machined into a desired shape by plastic deformation, as by rolling, includes the heating to a predetermined bonding temperature of powder grains enclosed in a capsule, and subjecting the capsule at the bonding temperature to a high pressure sufficient to bond the powder grains together to form a substantially solid body. The capsule is inserted at the bonding temperature into an over-sized forming cavity of a press which includes relatively movable punches, the capsule being completely surrounded within the press by a layer of heat-insulating and pressure-transmitting solid material, such as talc or the like. Thus, when the capsule is subjected to the high pressure upon operation of the press, such material serves as a pressure-transmitting medium through which pressure is applied completely against all sides of the capsule.
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公开(公告)号：SE8003139L
公开(公告)日：1981-10-26
申请号：SE8003139
申请日：1980-04-25
Applicant: ASEA AB
Inventor： LARSSON H G
Abstract: A method for manufacturing elongated dense bodies of metals or metal alloys by extrusion of a powder charge enclosed in a metal capsule. A closed, powder-filled capsule is heated to a temperature necessary for bonding the charge under pressure, and the capsule is then inserted in a pressure chamber and surrounded by a layer of a solid, readily deformable material, such as talcum powder or pyrophyllite. A piston is inserted into the pressure chamber and subjects the capsule and the surrounding material to a pressure such that the capsule and the surrounding material are pressed out together through an opening in a die. Tubes can also be extruded, with the deformable packing material filling the tube bore.
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Patent Agency Ranking
公开(公告)号：SE7511865A
公开(公告)日：1977-04-24
申请号：SE7511865
申请日：1975-10-23
Applicant: ASEA AB
Inventor： LARSSON H G , WESTMAN E
CPC classification number: B21C23/007
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公开(公告)号：SE7415296L
公开(公告)日：1976-06-08
申请号：SE7415296
申请日：1974-12-06
Applicant: ASEA AB
Inventor： NILSSON J , LUNDBECK B , SYVEKARI P , GUSTAVSSON S-G , LILJA K , LARSSON H G
Abstract: A press for hydrostatic extrusion includes a pressure chamber for enclosing a pressure medium which is formed of a high pressure cylinder, a pressure generating piston, a die and a die support and seals. The die support includes an exchangeable support ring which engages the end surface of the liner and bridges the gap between the liner and the die. A metallic sealing ring is arranged within the liner in engagement therewith, forming a gap between the inner surface of the sealing ring and the outer surface of the die or die support. The die support has a groove in its upper surface which contains a sealing member against which the edge of the metallic sealing ring engages. The lower outer corner of the metallic sealing ring is bevelled to form a space which communicates with the outside of the press.
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公开(公告)号：SE7415296A
公开(公告)日：1976-06-08
申请号：SE7415296
申请日：1974-12-06
Applicant: ASEA AB
Inventor： NILSSON J , LUNDBECK B , SYVEKARI P , GUSTAVSSON S-G , LILJA K , LARSSON H G
CPC classification number: F16J15/48 , B21C23/007 , B21C27/00 , F16J10/02
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公开(公告)号：SE366673C
公开(公告)日：1984-03-29
申请号：SE768572
申请日：1972-06-12
Applicant: ASEA AB
Inventor： BERGMAN C , LANDGREN N I , LARSSON H G , STRANDBERG T
Abstract: In the manufacture of billets from metal powder, in which the powder is enclosed in a container and subjected to isostatic pressure in a pressure furnace at such a temperature as to solidify the powder body, the container after the powder is introduced thereinto is degassed and thereafter supplied with a gas which is harmless to the powder material, which gas is present in the subsequent heating as a heat transfer agent circulating in the container.
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