公开(公告)号：EP2115332A1

公开(公告)日：2009-11-11

申请号：EP08717309.2

申请日：2008-03-03

Applicant: Nissan Motor Manufacturing (UK) Ltd.

Inventor： SANCHEZ, Israel Garcia

IPC: F16J15/16

CPC classification number: B22F3/24 ,  B22F5/00 ,  B22F2003/247 ,  B22F2999/00 ,  B22F2003/241 ,  B22F2201/05

Abstract: A method is provided for manufacturing a moving part capable of providing a liquid seal. The method comprises the steps of: firstly forming the part from sintered steel; and secondly forming a layer of Fe3O 4 on an un-ground surface of the part to provide a surface finish that is capable of providing a liquid seal.

公开(公告)号：EP1712646A4

公开(公告)日：2008-02-20

申请号：EP05790584

申请日：2005-10-06

Applicant: TANAKA PRECIOUS METAL IND

Inventor： SHOJI TORU ,  TANAKA SEIICHIRO ,  TAKEISHI SEIJI ,  SEGAWA HIDEO

IPC: C22C5/04 ,  B22F1/00 ,  C22C1/05

CPC classification number: C22C5/04 ,  B22F1/0088 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/1084 ,  C22C32/0021 ,  B22F9/082 ,  B22F9/04 ,  B22F3/10 ,  B22F3/02 ,  B22F3/17 ,  B22F3/18 ,  B22F3/24 ,  B22F2201/05 ,  B22F2201/11

Abstract: Disclosed is an oxide-dispersed platinum material which can be stably used at high temperatures and has excellent weldability. Specifically disclosed is a platinum material reinforced with dispersed oxide wherein particles composed of an oxide of an additional metal are dispersed in a platinum or platinum alloy matrix. Such a platinum material is characterized in that the oxygen concentration in the material excluding oxygen bonded to the additional metal is not more than 100 ppm. The dispersed particles preferably have an average particle diameter of not more than 0.2 µm and an average interparticle distance of 0.01-2.7 µm. The concentration of the dispersed particles is preferably 0.01-0.5% by weight, and the oxidation ratio of the additional metal is preferably 50-100%.

Abstract translation: 本发明公开了一种氧化物分散铂材料，其能够在高温下稳定使用并且具有优异的可焊性。 具体公开了用分散氧化物增强的铂材料，其中由附加金属的氧化物构成的颗粒分散在铂或铂合金基质中。 这样的铂材料的特征在于除去与附加金属结合的氧的材料中的氧浓度不超过100ppm。 分散颗粒优选具有不大于0.2μm的平均粒径和0.01-2.7μm的平均颗粒间距离。 分散粒子的浓度优选为0.01〜0.5重量％，其他金属的氧化率优选为50〜100％。

公开(公告)号：EP1712645A1

公开(公告)日：2006-10-18

申请号：EP05772607.7

申请日：2005-08-22

Applicant: TANAKA KIKINZOKU KOGYO KABUSHIKI KAISHA

Inventor： SHOJI, Toru, TANAKA KIKINZOKU KOGYO K.K. ,  TANAKA, Seiichiro, TANAKA KIKINZOKU KOGYO K.K. ,  TAKEISHI, Seiji, TANAKA KIKINZOKU KOGYO K.K. ,  SEGAWA, Hideo, TANAKA KIKINZOKU KOGYO K.K.

IPC: C22C1/10 ,  C22C1/05 ,  B22F1/00 ,  B22F3/24 ,  C22C5/02 ,  C22C5/04 ,  C22C5/06

CPC classification number: C22C1/1084 ,  B22F1/0088 ,  B22F2998/10 ,  B22F2999/00 ,  C22C5/04 ,  C22C32/0021 ,  B22F9/082 ,  B22F9/04 ,  B22F3/10 ,  B22F3/02 ,  B22F3/17 ,  B22F3/18 ,  B22F3/24 ,  B22F2201/05 ,  B22F2201/11

Abstract: The present invention provides a manufacturing method for an oxide-dispersed alloy in which dispersed particles consisting of oxides of one or two or more kinds of additive metals are dispersed in a matrix metal, comprising the steps of (a) manufacturing alloy powder or an alloy wire rod consisting of the matrix metal and the additive metal; (b) oxidizing the additive metal in the alloy powder by water to form dispersed particles by introducing the alloy powder or alloy wire rod into a high-energy ball mill with water and by making agitation; and (c) moldedin solidifying the alloy powder or alloy wire rod after oxidation. The present invention is especially useful in manufacturing an oxide-dispersed alloy in which the free energy of oxide formation of the matrix metal is higher than water standard free energy of formation , and the free energy of oxide formation of the additive metal is lower than water standard free energy of formation.

公开(公告)号：EP1694875A1

公开(公告)日：2006-08-30

申请号：EP03816415.8

申请日：2003-12-01

Applicant: Ex One Corporation ,  Liu, Jianxin

Inventor： LIU, Jianxin

IPC: C22C1/04 ,  B22F3/10

CPC classification number: B22F3/225 ,  B22F3/1007 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/0416 ,  Y02P10/295 ,  B22F3/008 ,  B22F3/1055 ,  B22F2201/02 ,  B22F2201/05

Abstract: Methods for sintering aluminum powder comprise providing aluminum powder and heating the aluminum powder in a nitrogen atmosphere containing a partial pressure of water vapor in the range of about 0.001 kPa to about 0.020 kPa to sinter the aluminum powder to a transverse rupture strength of at least about 13.8 MPa. The aluminum powder is not pressed together by a mechanical force that substantially deforms particles of said aluminum powder either prior to or during the step of heating. Articles comprising sintered aluminum powder. The sintered aluminum powder has a transverse rupture strength of at least about 13.8 MPa. The microstructure of the sintered aluminum powder contains no compositional concentration gradients indicative of the use of a sintering aid and no evidence of particle deformation having occurred by an application of a mechanical force prior to or during the sintering of the aluminum powder.

公开(公告)号：EP1356137B1

公开(公告)日：2004-10-06

申请号：EP02718044.7

申请日：2002-01-24

Applicant: EFOAM S.A.

Inventor： KUHN, Marc ,  MICHEL, Damien

IPC: C25D1/08 ,  C25D5/50 ,  F27B9/12 ,  F27B9/14 ,  F27B9/28

CPC classification number: B22F3/1137 ,  B22F3/1021 ,  B22F2999/00 ,  C25D1/08 ,  F27B9/045 ,  F27B9/147 ,  F27B9/28 ,  F27D99/007 ,  H01M4/808 ,  B22F2201/05

Abstract: A method for producing a metal structure comprising the following steps: providing a metal-coated polymer substrate; heating the metal-coated polymer substrate in a hot zone, in which a temperature of at least 600°C prevails and in which an atmosphere essentially composed of water vapor or of a mixture of water vapor and neutral gas is maintained, so as to remove the polymer substrate and form a metal structure; and cooling the metal structure in a cooling zone.

公开(公告)号：EP1289700A2

公开(公告)日：2003-03-12

申请号：EP01941619.7

申请日：2001-05-24

Applicant: Honeywell International Inc.

Inventor： STEVENSON, James, F. ,  BEHI, Mohammad ,  LASALLE, Jerry, C. ,  MARSH, Gary

IPC: B22F3/22 ,  B28B1/24 ,  B28C7/04

CPC classification number: B22F3/225 ,  B22F3/22 ,  B22F2998/00 ,  B22F2999/00 ,  B28C7/022 ,  B28C7/0409 ,  Y02P10/24 ,  B22F8/00 ,  B22F2203/01 ,  B22F2201/05

Abstract: A process for adjusting the level of water or water soluble additives in aqueous-based powder injection molding compounds for the purpose of recycling scrap material, controlling shrinkage or rehydrating dry feedstock. Depending on the objective, the process may require material granulation equipment, equipment for the addition or removal of water and mixing equipment. The molding compounds may be comprised of either recycled scrap material before being heat-treated or dry, virgin feedstock material.

公开(公告)号：EP0990057B1

公开(公告)日：2002-12-04

申请号：EP98928808.9

申请日：1998-06-17

Applicant: HÖGANÄS AB

Inventor： ARVIDSSON, Johan ,  TRYGGMO, Alf

IPC: C22C33/02 ,  B22F1/00

CPC classification number: C22C33/0285 ,  B22F2998/10 ,  B22F2999/00 ,  B22F9/082 ,  B22F1/0088 ,  B22F2201/013 ,  B22F2201/05

Abstract: The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10 % of chromium, adjusting the carbon content of the melt to a value which is decided by the expected oxygen content after water atomising; water-atomising the melt and annealing the as-atomised powder at a temperature of at least 1120 °C in a reducing atmosphere containing controlled amounts of water. The invention also concerns a water-atomised powder including 10 % by weight of chromium and having a carbon content between 0.2 and 0.7, preferably between 0.4 and 0.6 % by weight and an oxygen/carbon ratio of about 1 to 3 and at most 0.5 % of impurities, as well as the annealed powder obtained according to the process.

公开(公告)号：EP0914224B1

公开(公告)日：2001-12-19

申请号：EP97933969.4

申请日：1997-07-18

Applicant: HÖGANÄS AB

Inventor： ARVIDSSON, Johan

IPC: B22F1/00 ,  C21D3/04 ,  C22C33/02

CPC classification number: B22F9/082 ,  B22F1/0088 ,  B22F2201/05 ,  B22F2203/03 ,  B22F2999/00 ,  C21D3/04

Abstract: The invention concerns a process for producing a low-oxygen, low-carbon iron-based powder. The process comprises the steps of preparing a powder essentially consisting of iron and optionally at least one alloying element selected from the group consisting of chromium, manganese, copper, nickel, vanadium, niobium, boron, silicon, molybdenum, tungsten, decarburizing the powder in an atmosphere containing at least H2 and H2O gases, measuring the concentration of at least one of the carbon oxides (alternatively gases) formed during the decarburisation process, or measuring the oxygen potential in at least 2 points located at a predetermined distance from each other in the longitudinal direction of the furnace, adjusting the content of the H2O gas in the decarburizing atmosphere with the aid of the measurement. Another alternative concerns measuring the carbon oxides in combination with measuring the oxygen potential.

公开(公告)号：EP0990057A1

公开(公告)日：2000-04-05

申请号：EP98928808.9

申请日：1998-06-17

Applicant: HÖGANÄS AB

Inventor： ARVIDSSON, Johan ,  TRYGGMO, Alf

IPC: C22C33/02 ,  B22F1/00

CPC classification number: C22C33/0285 ,  B22F2998/10 ,  B22F2999/00 ,  B22F9/082 ,  B22F1/0088 ,  B22F2201/013 ,  B22F2201/05

Abstract: The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10 % of chromium, adjusting the carbon content of the melt to a value which is decided by the expected oxygen content after water atomising; water-atomising the melt and annealing the as-atomised powder at a temperature of at least 1120 °C in a reducing atmosphere containing controlled amounts of water. The invention also concerns a water-atomised powder including 10 % by weight of chromium and having a carbon content between 0.2 and 0.7, preferably between 0.4 and 0.6 % by weight and an oxygen/carbon ratio of about 1 to 3 and at most 0.5 % of impurities, as well as the annealed powder obtained according to the process.

公开(公告)号：EP0914224A1

公开(公告)日：1999-05-12

申请号：EP97933969.0

申请日：1997-07-18

Applicant: HÖGANÄS AB

Inventor： ARVIDSSON, Johan

IPC: B22F1 ,  C21D3 ,  C22C33

CPC classification number: B22F9/082 ,  B22F1/0088 ,  B22F2201/05 ,  B22F2203/03 ,  B22F2999/00 ,  C21D3/04

Abstract: The invention concerns a process for producing a low-oxygen, low-carbon iron-based powder. The process comprises the steps of preparing a powder essentially consisting of iron and optionally at least one alloying element selected from the group consisting of chromium, manganese, copper, nickel, vanadium, niobium, boron, silicon, molybdenum, tungsten, decarburizing the powder in an atmosphere containing at least H2 and H2O gases, measuring the concentration of at least one of the carbon oxides (alternatively gases) formed during the decarburisation process, or measuring the oxygen potential in at least 2 points located at a predetermined distance from each other in the longitudinal direction of the furnace, adjusting the content of the H2O gas in the decarburizing atmosphere with the aid of the measurement. Another alternative concerns measuring the carbon oxides in combination with measuring the oxygen potential.