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公开(公告)号：US09815115B2
公开(公告)日：2017-11-14
申请号：US14987117
申请日：2016-01-04
发明人： Yasuhiko Sakaguchi , Toshio Maetani
IPC分类号： F27B9/04 , B22F1/00 , F27B9/24 , C21D1/74 , C21D3/02 , C21D3/04 , C21D3/08 , F27B9/02 , F27D7/02
CPC分类号： B22F1/0088 , B22F1/0003 , B22F1/0081 , B22F1/0085 , B22F2201/013 , B22F2201/10 , B22F2201/32 , B22F2301/35 , B22F2998/10 , B22F2999/00 , C21D1/74 , C21D3/02 , C21D3/04 , C21D3/08 , F27B9/028 , F27B9/045 , F27B9/047 , F27B9/243 , F27D7/02
摘要： A finish heat treatment apparatus for an iron powder. Raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In a pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth.
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2.发明授权公开(公告)号：US08529709B2
公开(公告)日：2013-09-10
申请号：US12042751
申请日：2008-03-05
申请人： James M. Rakowski
发明人： James M. Rakowski
CPC分类号： C23C8/10 , C21D1/74 , C21D3/02 , C21D6/002 , C21D6/008 , C23C8/08 , H01B1/02 , H01M8/00 , H01M8/021 , H01M8/0228 , H01M2008/1293 , Y02E60/50 , Y02E60/525 , Y02P70/56
摘要： A method of reducing the formation of electrically resistive scale on a an article comprising a silicon-containing ferritic stainless subjected to oxidizing conditions in service includes, prior to placing the article in service, subjecting the article to conditions under which silica, which includes silicon derived from the steel, forms on a surface of the steel. Optionally, at least a portion of the silica is removed from the surface to placing the article in service. A ferritic stainless steel alloy having a reduced tendency to form silica on at least a surface thereof also is provided. The steel includes a near-surface region that has been depleted of silicon relative to a remainder of the steel.
摘要翻译： 在包含使用氧化条件的含硅铁素体不锈钢的制品上减少形成电阻垢的方法包括在将制品置于使用状态之前，对制品进行条件，在该条件下，将包含硅的二氧化硅 从钢中，在钢的表面上形成。 任选地，从表面去除至少一部分二氧化硅以使制品投入使用。 还提供了一种在至少其表面上具有降低形成二氧化硅的趋势的铁素体不锈钢合金。 钢包括相对于钢的剩余部分已经耗尽硅的近表面区域。
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公开(公告)号：US5853499A
公开(公告)日：1998-12-29
申请号：US919758
申请日：1997-08-28
CPC分类号： C22C38/02 , C21D3/02 , C21D3/04 , C21D8/1227 , C21D8/1255 , H01F1/14766 , C21D2201/05 , C21D8/1272 , C21D8/1288
摘要： Grain-oriented electrical steel sheet having a very low iron loss with controlled area ratio of fine grains, average grain size of coarse grains, obliquity of the grain boundary line of coarse grains, permeability under 1.0 T, and film tension.
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公开(公告)号：US3867210A
公开(公告)日：1975-02-18
申请号：US33711473
申请日：1973-03-01
申请人： VIRSBO BRUKS AB
摘要： The invention relates to a process for the production of mild steel tubes suitable for heating installations. Coils of the tubes of mild steel are enclosed in a container and introduced into a furnace and there heated without the addition of protective gas up to a temperature between 640* and 900*C. When this temperature is reached wet hydrogen is introduced into the container in the furnace in order to lower the carbon and nitrogen contents of the steel and increase the size of the grains. Finally the container with the tubes is transferred to a cooling pit in order to cool.
摘要翻译： 本发明涉及适用于加热装置的低碳钢管的生产方法。 软钢管的线圈被封装在容器中并被引入炉中，并且在不加入保护气体的情况下加热至640℃至900℃之间的温度。当达到该温度时，将湿的氢气引入容器 在炉中以降低钢的碳氮含量，增加晶粒尺寸。 最后，将带有管的容器转移到冷却槽以冷却。
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公开(公告)号：US2626863A
公开(公告)日：1953-01-27
申请号：US8785349
申请日：1949-04-15
发明人： ERASMUS HENDRIK DE W
IPC分类号： C21D3/02
CPC分类号： C21D3/02
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公开(公告)号：US20160303652A1
公开(公告)日：2016-10-20
申请号：US14442217
申请日：2013-12-02
IPC分类号： B22F1/00 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , H01F3/08 , B22F9/20 , C21D3/04 , C21D3/02 , C21D1/26 , H01F1/20 , C22C38/18 , B22F9/08
CPC分类号： B22F1/0062 , B22F1/0014 , B22F9/082 , B22F9/20 , B22F2009/0828 , B22F2301/35 , B22F2304/10 , B22F2998/10 , C21D1/26 , C21D3/02 , C21D3/04 , C22C33/02 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C2202/02 , H01F1/20 , H01F3/08
摘要： The present invention provides iron powder for dust cores that has excellent compressibility and low iron loss after formation. In the iron powder for dust cores, Si content is 0.01 mass % or less, apparent density is 3.8 g/cm3 or more, the ratio of iron powder particles with a particle size of 45 μm or less is 10 mass % or less, the ratio of iron powder particles with a particle size of over 180 μm and 250 μm or less is less than 30 mass %, the ratio of iron powder particles with a particle size of over 250 μm is 10 mass % or less, and the Vickers hardness (test force: 0.245 N) of a powder cross-section is 80 Hv or less.
摘要翻译： 本发明提供了具有优异的压缩性和形成后的低铁损的防尘芯铁粉。 作为防尘芯铁粉末，Si含量为0.01质量％以下，表观密度为3.8g / cm 3以上，粒径为45μm以下的铁粉末的比例为10质量％以下， 粒径为180μm以上且250μm以下的铁粉粒子的比例小于30质量％，粒径超过250μm的铁粉粒子的比例为10质量％以下，维氏硬度 （试验力：0.245N）的粉末截面为80Hv以下。
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8.发明申请公开(公告)号：US20130240091A1
公开(公告)日：2013-09-19
申请号：US13873270
申请日：2013-04-30
申请人： James M. Rakowski
发明人： James M. Rakowski
IPC分类号： H01B1/02
CPC分类号： C23C8/10 , C21D1/74 , C21D3/02 , C21D6/002 , C21D6/008 , C23C8/08 , H01B1/02 , H01M8/00 , H01M8/021 , H01M8/0228 , H01M2008/1293 , Y02E60/50 , Y02E60/525 , Y02P70/56
摘要： A method of reducing the formation of electrically resistive scale on a an article comprising a silicon-containing ferritic stainless subjected to oxidizing conditions in service includes, prior to placing the article in service, subjecting the article to conditions under which silica, which includes silicon derived from the steel, forms on a surface of the steel. Optionally, at least a portion of the silica is removed from the surface to placing the article in service. A ferritic stainless steel alloy having a reduced tendency to form silica on at least a surface thereof also is provided. The steel includes a near-surface region that has been depleted of silicon relative to a remainder of the steel.
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公开(公告)号：US5011742A
公开(公告)日：1991-04-30
申请号：US547729
申请日：1990-07-02
申请人： James A. Fife , Robert A. Hard
发明人： James A. Fife , Robert A. Hard
CPC分类号： C22F1/18 , C21D3/02 , C22F1/02 , Y10T428/12097 , Y10T428/12479 , Y10T428/12819
摘要： A process for controlling the oxygen content in tantalum material comprising heating the material under a hydrogen-containing atmosphere in the presence of a getter composite comprising a getter metal encapsulated in tantalum.
摘要翻译： 一种用于控制钽材料中的氧含量的方法，包括在含有包封在钽中的吸气剂金属的吸气剂复合物存在下，在含氢气氛下加热该材料。
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公开(公告)号：US4153485A
公开(公告)日：1979-05-08
申请号：US825470
申请日：1977-08-17
申请人： Kazuo Ogata , Seiya Furuta
发明人： Kazuo Ogata , Seiya Furuta
IPC分类号： B22F1/00 , B22F3/02 , B22F3/10 , B22F3/17 , C21D1/76 , C21D3/00 , C21D3/02 , C21D3/04 , C22C33/02 , C21D1/00
CPC分类号： C21D1/76 , B22F3/1007 , C21D3/02 , C22C33/0235
摘要： A process is provided for heating steel powder compacts in a controlled atmosphere consisting of a primary gas containing at least 80% by volume of an inert gas, and a secondary gas comprising 0.1 to 5% by volume, based on the volume of said primary gas, of a paraffinic hydrocarbon. The process makes it possible to reduce the residual oxygen concentration in the steel powder compacts, while maintaining accurate control of the carbon content.
摘要翻译： 提供了一种在受控气氛中加热含有至少80体积％惰性气体的主要气体的钢粉末压块和基于所述主气体体积的0.1至5体积％的二次气体的方法 的链烷烃。 该方法可以在保持碳含量的精确控制的同时降低钢粉末成形体中的残留氧浓度。
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