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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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