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91. 发明专利

CA2768121A1 HOLLOW DRILLING STEEL ROD AND METHOD OF MANUFACTURING THE SAME 未知
公开(公告)号：CA2768121A1
公开(公告)日：2012-08-18
申请号：CA2768121
申请日：2012-02-16
申请人： MITSUBISHI MATERIALS CORP , DAIDO STEEL CO LTD
发明人： HISADA MASAYA , HIWASA YONEO , NAGASE SATOSHI , TAKAHATA NORITAKA
IPC分类号： E21B17/00 , E21B17/042
摘要： The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.

92. 发明专利

CA2793830A1 REACTOR AND METHOD OF MANUFACTURE FOR SAME 未知
公开(公告)号：CA2793830A1
公开(公告)日：2011-09-29
申请号：CA2793830
申请日：2011-03-17
申请人： DAIDO STEEL CO LTD , DAIDO ELECTRONICS CO LTD
发明人： ESAKI JUNICHI , KAJINAMI YOSHITOMO , KATO HIROYUKI , MATSUMOTO YASUHIRO
IPC分类号： H01F41/04 , H01F27/24 , H01F27/255 , H01F37/00 , H01F41/02
摘要： Disclosed is a method of manufacture for a reactor wherein a core is injection moulded from a compound material comprising a soft magnetic powder and a thermoplastic resin, and a coil is embedded thereinto and integrated therewith. The method provides an excellent injection moulding technique for forming a core wherein the coil is effectively prevented from moving or deforming when the core is formed. A reactor (15) is manufactured by: a step A wherein a coil enclosure (24) is formed by enclosing a coil (10), made by winding a wire rod while an insulating layer is interposed therebetween, in an electrically insulating resin; and a stage wherein the core (16) is formed by injection moulding the compound material comprising a soft magnetic powder and a thermoplastic resin so as to encapsulate the coil enclosure (24). Further, injection moulding of the core (16) is divided into: a stage wherein a first body (16-1) which makes up the vessel shape is formed separately; and a stage wherein a second body (16-2) is formed while the coil enclosure (24) is positioned inside the first body (16-1).

93. 发明专利

AT513934T 未知
公开(公告)号：AT513934T
公开(公告)日：2011-07-15
申请号：AT10000827
申请日：2010-01-27
申请人： DAIDO STEEL CO LTD
发明人： IBUKI MOTOHIRO , INOUE KOICHIRO
IPC分类号： C22C38/42 , B29C33/38 , C21D6/00 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/44 , C22C38/46

94. 发明专利

IL184078A LIGHT CONVERGING-TYPE SOLAR PHOTOVOLTAIC APPARATUS 未知
公开(公告)号：IL184078A
公开(公告)日：2011-02-28
申请号：IL18407807
申请日：2007-06-20
申请人： DAIDO STEEL CO LTD
摘要： The present invention provides a light converging-type solar photovoltaic apparatus having: a case having: a bottom member; a peripheral member; and an upper member so as to form a space in the case, the case inclining so as to face the upper member to the sun; a plurality of Fresnel lenses provided at the upper member, the Fresnel lenses converging sun light; a plurality of solar battery cells provided in the case, the solar battery cells each receiving each sun light converged by the Fresnel lenses to generate electric power, the peripheral member having surfaces opposed to each other, the opposed surfaces each having at least one opening portion, and a vent valve provided at each opening portion, the vent valve having a mesh interrupting ventilation upon a water film being formed on the mesh.

95. 发明专利

BE1018371A3 POUDRE DE PARTICULES DURES POUR CORPS FRITTE ET CORPS FRITTE. 未知
公开(公告)号：BE1018371A3
公开(公告)日：2010-09-07
申请号：BE200800697
申请日：2008-12-23
申请人： DAIDO STEEL CO LTD
发明人： TOMOMI YAMAMOTO , SEIJI KURATA
IPC分类号： B22F1/00 , B22F3/16 , B22F5/02 , B22F5/10 , C22C19/07 , F02M61/18 , F16K1/00
摘要： L'invention propose une poudre de particules dures pour corps fritté, qui contient en % en masse, 2% à 3,5% de Si, 6% à 10% de Cr, 20% à 35% de Mo, 0,01% à 0,5% de REM, le reste étant du Co et les impuretés inévitables. L'invention propose en outre, un corps fritté obtenu par une étape de mélange de la poudre de particules dures pour corps fritté mentionnées ci-dessus, à une poudre de fer pur et une poudre de graphite pour obtenir un mélange poudreux, une étape de mise en forme pour le compactage et la mise en forme du mélange poudreux de manière à obtenir un compact, et une étape de frittage du compact. La poudre de particules dures selon l'invention à l'effet de produire un corps fritté ayant une résistance à l'usure améliorée, sans sensiblement altérer les caractéristiques de la poudre et les caractéristiques de frittage. En outre, le corps fritté selon l'invention à l'effet de présenter une excellente résistance à l'usure.

96. 发明专利

DE69906630T3 未知
公开(公告)号：DE69906630T3
公开(公告)日：2010-05-06
申请号：DE69906630
申请日：1999-07-08
申请人： DAIDO STEEL CO LTD
发明人： NOMURA TAMOTSU , NONOYAMA SEIJI , MATSUO KUNIO
IPC分类号： F27D13/00 , F27D17/00 , C21C5/56 , F27D9/00

97. 发明专利

DE102009042124A1 未知
公开(公告)号：DE102009042124A1
公开(公告)日：2010-04-22
申请号：DE102009042124
申请日：2009-09-18
申请人： DAIDO STEEL CO LTD
发明人： ISHIMOTO TAKASHI , OCHIAI TAKAYA , SHIMIZU KENJI , OGAWA MASATO
IPC分类号： C21D9/667
摘要： The present invention provides a continuous heat treatment furnace including: a heating chamber heating a treatment object in an inert gas atmosphere; a front chamber provided at one end of the heating chamber; and a first cooling chamber cooling the treatment object in an inert gas atmosphere, a vacuum purge chamber, and a second cooling chamber cooling the treatment object in an oxidizing gas atmosphere, which are connected in this order to the other end of the heating chamber, in which the treatment object transferred from the front chamber to the heating chamber is subjected to the heating in the heating chamber, and then subjected to one cooling selected from the cooling in the inert gas atmosphere in the first cooling chamber and the cooling in the oxidizing gas atmosphere in the second cooling chamber depending on a type of the treatment object.

98. 发明专利

ES2196681T5 LINGUETE REFRIGERADO CON AGUA. 未知
公开(公告)号：ES2196681T5
公开(公告)日：2010-02-09
申请号：ES99113259
申请日：1999-07-08
申请人： DAIDO STEEL CO LTD
发明人： NOMURA TAMOTSU , NONOYAMA SEIJI , MATSUO KUNIO
IPC分类号： F27D13/00 , F27D17/00 , C21C5/56 , F27D9/00
摘要： Un brazo refrigerado por agua para un precalentador de un tragante sujeta los materiales de metal en la cantidad requerida en un vientre instalado en el tragante para precalentar los materiales de metal introduciendo los gases de escape calientes generados en el horno al interior del vientre. El brazo refrigerado por agua está formado de un par de caras laterales, una placa superior y una placa inferior. La placa superior está fija a una parte superior de ambas partes laterales. La placa inferior se fija a una parte inferior de ambas partes laterales. El brazo refrigerado por agua se forma para que sea hueco como una pieza completa. Satisface al menos una de las condiciones de (A) el grosor de la placa superior es mayor que el de la placa inferior, (B) la placa inferior está formada con partes procesadas combadas en forma de R en ambos extremos de la misma y (C) la placa inferior está curvada hacia el exterior.

99. 发明专利

DE602006011094D1 未知
公开(公告)号：DE602006011094D1
公开(公告)日：2010-01-28
申请号：DE602006011094
申请日：2006-09-15
申请人： DAIDO STEEL CO LTD
发明人： SAITO AKIHIKO , TSUTSUI KAZUHISA
IPC分类号： H01P1/203 , H01P3/08
摘要： The present invention provides a band-pass filter having: a first substrate; a second substrate; an input line; an output line, a ground layer; and an electromagnetic wave absorptive layer, the input line being provided on a first surface of the first substrate, the input line extending from a first edge thereof toward a second edge thereof, the output line being provided on a second surface of the first substrate, the output line extending from the second edge thereof toward the first edge thereof, the input line and the output line forming an overlapping line, the output line being sandwiched between a first surface of the second substrate and the second surface of the first substrate, the ground layer being provided on a second surface of the second substrate; the electromagnetic wave absorptive layer being provided on the first surface of the first substrate, the electromagnetic wave absorptive layer covering the input line.

100. 发明专利

DE602006000842T2 未知
公开(公告)号：DE602006000842T2
公开(公告)日：2009-05-20
申请号：DE602006000842
申请日：2006-04-19
申请人： DAIDO STEEL CO LTD
发明人： YOSHIDA HIROAKI , ITOH SHIGEKAZU
IPC分类号： B21J13/02 , B22C9/06
摘要： Disclosed is a method of predicting damage of dies for plastic processing of metallic materials, typically, forging dies, by predicting brittle fracture ("great crack" or "initial crack") dominating die lives contribute to die design including choice of materials, hardness and configuration of the die. The method is characterized in that the die design is carried out by choosing the condition that none of the anticipated values of brittle fracture, F c1 to F c3 , calculated by the formulae 1 to 3 below exceed the critical values depending on the material used. [ formula €‰ 1 ] €‰ F c 1 = ( Ã m / Ã e q ) [ formula €‰ 2 ] €‰ F c 2 = ( Ã m / Ã 1 max ) [ formula €‰ 3 ] €‰ F c 3 = ( Ã 1 max / Ã e q ) Ã m : mean normal stress loaded to the tensile side of the die Ã eq : Von Misese's equivalent stress Ã 1max : maximum principal stress

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