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公开(公告)号：US20050247375A1
公开(公告)日：2005-11-10
申请号：US10528362
申请日：2003-09-22
申请人： Teiji Suzuki , Masaomi Saruyama , Masashi Takagaki , Naoki Narita
发明人： Teiji Suzuki , Masaomi Saruyama , Masashi Takagaki , Naoki Narita
摘要： A metal ring made of maraging steel is heated in the presence of a halogen compound gas, so as to eliminate an oxide film from the surface of the metal ring and to form a halogenous compound film. Thereafter, the metal ring is heated under a vacuum or reduced pressure atmosphere to eliminate the halogenous compound film, and then it is maintained under an atmosphere comprising ammonia at a processing temperature ranging between 450° C. and 500° C. for a processing time ranging between 30 and 120 minutes, so as to carry out a nitriding processing. The above nitriding processing comprises the steps of: placing the above metal ring into a heating furnace and raising the temperature inside the heating furnace to the above processing temperature; introducing a first mixed gas consisting of 50% to 90% ammonia byvolume, 0.1% to 0.9% oxygen by volume, and a residual volume consisting of nitrogen into the heating furnace, and maintaining the above processing temperature, so as to form a nitrided layer on the surface of the metal ring; and when the one-third to one-half of the processing time has passed, replacing the atmosphere inside the heating furnace by a second mixed gas consisting of 0% to 25% ammonia by volume and a residual volume consisting of nitrogen, and maintaining the above processing temperature until the remaining processing time passes.
摘要翻译： 由马氏体时效钢制成的金属环在卤素化合物气体的存在下被加热，从而从金属环的表面除去氧化膜并形成卤化合物膜。 此后，在真空或减压气氛下加热金属环以除去卤化合物膜，然后在450℃至500℃的加工温度下将其保持在包含氨的气氛下进行加工时间 范围在30到120分钟之间，以便进行氮化处理。 上述氮化处理包括以下步骤：将上述金属环放入加热炉中并将加热炉内的温度升高至上述处理温度; 将由体积比为50％至90％的氨，0.1体积％至0.9体积％的氧气和由氮气组成的残余体积加入到加热炉中的第一混合气体，并保持上述处理温度，以形成氮化层 在金属环的表面上; 并且当处理时间的三分之一到一半之后，通过由0体积％至25体积％的氨和由氮组成的残留体积的第二混合气体代替加热炉内部的气氛，并且保持 高于处理温度，直到剩余的处理时间过去。
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2.发明授权Conveying jig, method of manufacturing conveying jig, and method of heat-treating metal rings using conveying jig 失效输送夹具，输送夹具的制造方法以及使用输送夹具热处理金属环的方法公开(公告)号：US08544305B2
公开(公告)日：2013-10-01
申请号：US13140379
申请日：2009-10-22
CPC分类号： C21D9/0025 , B21D26/033 , C21D9/40 , F27D5/0006
摘要： Provided are a conveying jig, a method of manufacturing the conveying jig, and a method of heat-treating metal rings using the conveying jig. The conveying jig is provided with a base and ten holding shafts raised from the base. Ridges and grooves are alternatively provided in the side wall of each holding shaft. The metal rings are held in position by being engaged in the grooves in the holding shafts. The space enclosed within the holding shafts is communicated with the atmosphere, and this allows, when the metal rings held by the conveying jig are subjected to heat treatment in a heat treatment furnace, an atmospheric gas to circulate in the space enclosed within the holding shafts.
摘要翻译： 提供了输送夹具，制造输送夹具的方法以及使用输送夹具对金属环进行热处理的方法。 输送夹具设有一个基座和十个从底座上升的保持轴。 在每个保持轴的侧壁中可选地设置有脊和槽。 金属环通过接合在保持轴中的槽中而保持就位。 封闭在保持轴内的空间与大气连通，这样当由输送夹具保持的金属环在热处理炉中进行热处理时，能够在封闭在保持轴内的空间内循环大气 。
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3.发明申请CONVEYING JIG, METHOD OF MANUFACTURING CONVEYING JIG, AND METHOD OF HEAT-TREATING METAL RINGS USING CONVEYING JIG 失效输送机，输送机的制造方法和使用输送机加热金属环的方法公开(公告)号：US20110252852A1
公开(公告)日：2011-10-20
申请号：US13140379
申请日：2009-10-22
CPC分类号： C21D9/0025 , B21D26/033 , C21D9/40 , F27D5/0006
摘要： Provided are a conveying jig, a method of manufacturing the conveying jig, and a method of heat-treating metal rings using the conveying jig. The conveying jig is provided with a base and ten holding shafts raised from the base. Ridges and grooves are alternatively provided in the side wall of each holding shaft. The metal rings are held in position by being engaged in the grooves in the holding shafts. The space enclosed within the holding shafts is communicated with the atmosphere, and this allows, when the metal rings held by the conveying jig are subjected to heat treatment in a heat treatment furnace, an atmospheric gas to circulate in the space enclosed within the holding shafts.
摘要翻译： 提供了输送夹具，制造输送夹具的方法以及使用输送夹具对金属环进行热处理的方法。 输送夹具设有一个基座和十个从底座上升的保持轴。 在每个保持轴的侧壁中可选地设置有脊和槽。 金属环通过接合在保持轴中的槽中而保持就位。 封闭在保持轴内的空间与大气连通，这样当由输送夹具保持的金属环在热处理炉中进行热处理时，能够在封闭在保持轴内的空间内循环大气 。
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公开(公告)号：US20120000265A1
公开(公告)日：2012-01-05
申请号：US13133024
申请日：2010-03-08
CPC分类号： F16G5/16 , C21D9/0018 , C21D9/0025 , C21D9/40
摘要： Elastic metal rings are pushed between plural shelf members which have an opening, are provided parallel to each other in a vertical direction and are spaced a predetermined interval from each other, the opening having an inner periphery of which total sides are longer than a periphery of each elastic metal ring. Each of all the metal rings is deformed into an approximately polygonal shape, which allows all the metal rings to pass through the opening, from arrangement condition of the metal rings, and all the metal rings are pressed and held from insides thereof and are extracted from the opening. A heat treatment jig, which has the same opening as that of the shelf member and enables the metal rings to be mounted parallel to each other in a vertical direction and to be spaced the above predetermined interval from each other, is used. All the metal rings, which are held from the insides thereof in the arrangement condition, are inserted from the opening of the heat treatment jig into the heat treatment jig, all the metal rings are released from being held from the insides thereof, and all the metal rings are mounted in the heat treatment jig. The metal rings and the heat treatment jig are subjected to a heat treatment, and the metal rings are extracted from the shelf members.
摘要翻译： 弹性金属环被推压在具有开口的多个搁架构件之间，在垂直方向上彼此平行地设置并且彼此隔开预定的间隔，该开口的内周的总长度大于 每个弹性金属环。 所有金属环中的每一个都变形为大致多边形，这允许所有金属环从金属环的布置状态通过开口，并且所有的金属环从内部被压制并保持，并从 开幕。 使用具有与搁架构件相同的开口的热处理夹具，并且能够使金属环在垂直方向上彼此平行地安装并且彼此间隔上述预定间隔。 在布置状态下从其内侧保持的所有金属环从热处理夹具的开口插入到热处理夹具中，所有的金属环从其内部脱离，并且全部 金属环安装在热处理夹具中。 对金属环和热处理夹具进行热处理，从搁板部件中取出金属环。
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公开(公告)号：US09587708B2
公开(公告)日：2017-03-07
申请号：US13133024
申请日：2010-03-08
CPC分类号： F16G5/16 , C21D9/0018 , C21D9/0025 , C21D9/40
摘要： In an alignment stocker having an opening and plural shelf members, metal rings are pushed between the plural shelf members. The meta rings are deformed into an approximately polygonal shape to pass through the opening, in an arranged State of the metal rings, by pressing and holding from insides thereof, and are extracted from the opening. Using a heat treatment jig, which has the same opening as that of the shelf member and enables the metal rings to be mounted parallel to each other in a vertical direction and to be spaced the predetermined interval from each other, the metal rings held from the insides thereof in the arranged state, are inserted from the opening of the heat treatment jig into the heat treatment jig, are mounted in the heat treatment jig by releasing the inside holding, and then are heated and extracted from the shelf members.
摘要翻译： 在具有开口和多个搁架构件的对准储料器中，在多个搁架构件之间推动金属环。 在金属环的排列状态下，通过从其内部压制而将元环变形成大致多边形的形状以穿过开口，并从开口中取出。 使用具有与搁架构件相同的开口的热处理夹具，并且使金属环能够在垂直方向上彼此平行地安装并且彼此隔开预定间隔，金属环从 其内部处于布置状态，从热处理夹具的开口插入到热处理夹具中，通过释放内侧保持件而安装在热处理夹具中，然后从架子部件被加热和提取。
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公开(公告)号：US20100126632A1
公开(公告)日：2010-05-27
申请号：US12447914
申请日：2007-10-26
IPC分类号： C23C8/80
摘要： This invention provides a process for producing a high-concentration carburized steel which can realize dispersion of a large amount of fine and spherical carbides without causing lowered service life of a furnace, deformed steel products, and lowered working efficiency. The production process comprises (i) a primary carburization step for carburizing a steel product having a predetermined composition at a primary carburization temperature (T1) (° C.) until the surface carbon concentration (C) reaches a predetermined carbon concentration, (ii) a cooling step of, after the completion of the primary carburization step, cooling the steel product at a cooling rate of not less than 1° C./min to Ar1 point or less, (iii) a secondary carburization initial step of raising the temperature of the steel product to a secondary carburization start temperature (T2s), which is at least 100° C. below the primary carburization temperature (T1), and carburizing the steel product at a secondary carburization temperature (T2), (iv) a secondary carburization late step of, subsequent to the completion of the secondary carburization initial step, raising the temperature of the steel product to a quench hardening temperature (Tq) and further carburizing the steel product at the quench hardening temperature (Tq), and (v) a quench hardening step of, after the completion of the secondary carburization late step, quench hardening the steel product.
摘要翻译： 本发明提供一种高浓度渗碳钢的制造方法，其能够实现大量的细小球形碳化物的分散，而不会降低炉的使用寿命，钢材变形，降低工作效率。 制造方法包括：（i）在一次渗碳温度（T1）（℃）下直到表面碳浓度（C）达到规定的碳浓度为止，对具有规定组成的钢材进行渗碳的一次渗碳工序，（ii） 冷却步骤，在一次渗碳工序完成后，以不低于1℃/分钟的冷却速度将钢产品冷却至Ar1点以下，（iii）提高温度的二次渗碳初始工序 的钢的第二渗碳开始温度（T2s），其低于一次渗碳温度（T1）以下至少100℃，在二次渗碳温度（T2）下对钢材进行渗碳，（iv）二次渗碳温度 渗碳后期的步骤，在二次渗碳初始步骤完成后，将钢制品的温度提高到淬火硬化温度（Tq），并进一步渗碳钢产品 淬火硬化温度（Tq）和（v）淬火硬化步骤，在二次渗碳后期步骤完成后淬火硬化钢产品。
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7.发明授权Conveyance rack, method for retaining metal ring, and method for heat treatment of metal ring 有权输送架，金属环保持方法及金属环热处理方法公开(公告)号：US08998004B2
公开(公告)日：2015-04-07
申请号：US13390745
申请日：2010-09-02
CPC分类号： C21D9/0025 , C21D9/40 , F27D3/12 , F27D5/00
摘要： Disclosed are a conveyance rack for retaining and conveying resilience-memory metal rings and a method for retaining the metal rings. The conveyance rack is provided with a base and a plurality of retaining shafts which extend parallel to each other, being erected on the base, and which are provided with, on the side walls thereof, a plurality of protrusions abutting on the lower end surfaces of the metal rings. The protrusions abut on the lower end surfaces of the metal rings by point contact.
摘要翻译： 公开了一种用于保持和传送回弹记忆金属环的输送架以及用于保持金属环的方法。 输送架设有基部和彼此平行延伸的多个保持轴，其竖立在基部上，并且在其侧壁上设置有多个突起，该突起抵靠在 金属环。 突起通过点接触而抵靠金属环的下端面。
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8.发明申请CONVEYANCE RACK, METHOD FOR RETAINING METAL RING, AND METHOD FOR HEAT TREATMENT OF METAL RING 有权输送机架，金属环保持方法及金属加热处理方法公开(公告)号：US20120148968A1
公开(公告)日：2012-06-14
申请号：US13390745
申请日：2010-09-02
IPC分类号： C21D9/40
CPC分类号： C21D9/0025 , C21D9/40 , F27D3/12 , F27D5/00
摘要： Disclosed are a conveyance rack for retaining and conveying resilience-memory metal rings and a method for retaining the metal rings. The conveyance rack is provided with a base and a plurality of retaining shafts which extend parallel to each other, being erected on the base, and which are provided with, on the side walls thereof, a plurality of protrusions abutting on the lower end surfaces of the metal rings. The protrusions abut on the lower end surfaces of the metal rings by point contact.
摘要翻译： 公开了一种用于保持和传送回弹记忆金属环的输送架以及用于保持金属环的方法。 输送架设有基部和彼此平行延伸的多个保持轴，其竖立在基部上，并且在其侧壁上设置有多个突起，该突起抵靠在 金属环。 突起通过点接触而抵靠金属环的下端面。
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