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61.发明专利
公开(公告)号：SE425361B
公开(公告)日：1982-09-27
申请号：SE7909205
申请日：1979-11-07
Applicant: ASEA AB
Inventor： ADLERBORN J , LARKER H , MATTSSON B , NILSSON J
Abstract: An object of a metallic material or other ceramic material than silicon nitride or than a material having silicon nitride as its main component is manufactured by isostatic pressing of a body preformed from a powder of the metallic or ceramic material, whereby the preformed body is embedded in glass, for example embedded in a mass of glass particles, and the embedment, with the body and the embedment placed in a vessel which is dimensionally stable at the temperature at which the sintering of the metallic or ceramic material is carried out, is transferred to a melt having a surface limited by the walls of the vessel, below which surface the preformed body is located, and a pressure necessary for the isostatic pressing of the preformed body then being applied on the melt by a gaseous pressure medium.
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公开(公告)号：SE348961C
公开(公告)日：1982-04-19
申请号：SE328471
申请日：1971-03-15
Applicant: ASEA AB
Inventor： ISAKSSON S-E , LARKER H
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公开(公告)号：SE421733B
公开(公告)日：1982-01-25
申请号：SE8004833
申请日：1980-06-30
Applicant: ASEA AB
Inventor： LARKER H
IPC: G21C11/08
Abstract: A protection 1, 5 against melt-through of an arrangement 3, 7 placed underneath a nuclear reactor hearth, in which molten material can be accommodated upon melting of the hearth in a nuclear reactor, is produced by isostatic pressing of hexagonal boron nitride at a temperature of at least 1600 degrees Celsius and a pressure of at least 50 MPa. The protection can be enclosed in a shell 2, 6 of steel or other metal plates.
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公开(公告)号：BR8101794A
公开(公告)日：1981-09-29
申请号：BR8101794
申请日：1981-03-26
Applicant: ASEA AB
Inventor： LARKER H
IPC: H01L21/52 , H01L23/04 , H01L23/051 , H01L23/492 , C22C33/02 , C22C38/08
Abstract: Composite material comprising a matrix of an alloy of about 64 percent by weight iron and about 36 percent by weight nickel or of a different alloy containing iron and nickel having a coefficient of thermal expansion of at the most 3.10-6K-1 within the temperature range 20 DEG C. to 100 DEG C. and veins of copper, distributed in one direction through the matrix, with the copper and the alloy metallurgically bonded to each other through a boundary layer containing copper and the alloy having a thickness of at the most 5 mu m.
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Patent Agency Ranking
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公开(公告)号：SE406933B
公开(公告)日：1979-03-05
申请号：SE7701156
申请日：1977-02-03
Applicant: ASEA AB
Inventor： LARKER H
Abstract: Powder is degassed in a plant where the powder flows downwards from one vessel(a) through a pipe(b) into a second vessel(c). Pipe(b) has a by-pass (b1) leading to a vacuum pump; and below pipe(b1) is an adjustable choke(b2) controlling powder flow. In order to reach vacuum pipe(b1), gas removed from the powder must pass up a column of the powder which traps any fine powder particles carried upwards by the gas. Pipe(b) is pref. fitted with a by-pass(b2a) round choke (b2), which is followed by a heater located round tube(b), esp. an induction heating coil. Below the heater, a branch pipe pref. leads to a second vacuum pump used e.g. to evacuate vessel(c), which receives the degassed powder. Esp. used for powders which are to be subsequently compacted by isostatic pressing, e.g. superalloy powders or Si3N4, where all gases must be removed before pressing.
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公开(公告)号：SE7701156A
公开(公告)日：1978-08-04
申请号：SE7701156
申请日：1977-02-03
Applicant: ASEA AB
Inventor： LARKER H
IPC: B22F1/00 , B30B11/00 , C04B35/645 , F26B17/12 , C21D3/02
CPC classification number: C04B35/6455 , B22F1/0085
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