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    • 93. 发明授权
    • Continuous vacuum carburizing furnace
    • 连续真空渗碳炉
    • US07029625B2
    • 2006-04-18
    • US10708737
    • 2004-03-22
    • Yoshikazu ShimosatoSeiji Yoshimoto
    • Yoshikazu ShimosatoSeiji Yoshimoto
    • C21D1/773
    • F27B9/02C21D1/773C21D9/0062C23C8/22F27B9/028F27B9/04F27B9/045
    • A continuous vacuum carburizing furnace of the invention includes: a heating chamber for heating a workpiece under a atmospheric pressure; a first conditioning chamber in which the pressure is reduced from the atmospheric pressure after the receipt of the workpiece from the heating chamber; a carburizing/diffusing chamber receiving plural workpieces from the first conditioning chamber and conducting plural cycles of carburizing and diffusing processes under the reduced pressure; a second conditioning chamber in which the reduced pressure is returned to the atmospheric pressure after the receipt of the workpiece treated in the carburizing/diffusing chamber; and a cooling chamber for cooling the workpiece introduced from the second conditioning chamber under the atmospheric pressure, the furnace further comprising a door member disposed between a respective adjoining pair of the above chambers, the door member opened/closed only when the workpiece is transported from one chamber to another.
    • 本发明的连续真空渗碳炉包括:加热室,用于在大气压下加热工件; 第一调节室,其中在从加热室接收到工件之后,压力从大气压力减小; 渗碳/扩散室,从第一调节室接收多个工件,并在减压下进行多个渗碳扩散过程; 第二调节室,其中在渗碳/扩散室中处理的工件接收之后,减压返回到大气压; 以及冷却室,用于在大气压力下冷却从第二调节室引入的工件,炉还包括设置在相邻的一对上述室之间的门构件,门构件仅在工件从 一个房间到另一个房间。
    • 96. 发明授权
    • Method of floatingly supporting a metallic strip
    • 浮动支撑金属条的方法
    • US5118366A
    • 1992-06-02
    • US610964
    • 1990-11-09
    • Yasuyuki Shintaku
    • Yasuyuki Shintaku
    • C21D9/63
    • C21D9/63
    • Disclosed is a method of floatingly supporting a metallic strip in a direct firing type continuous heat treating furnace accommodating a plurality of floater nozzles. In this method, furnace gas is initially supplied to and pressurized by a plurality of multistage booster fans. The temperature of the furnace gas to be supplied to the booster fans is less than a critical temperature of the fans. When the temperature of the furnace gas is less than the temperature of the material of the strip, the temperature of the furnace gas is raised to a temperature near the material temperature in combustion chambers provided with respective direct firing type burners. The furnace gas is then supplied to the floater nozzles, the internal pressure of which is controlled prior to being jetted.
    • 公开了一种在容纳多个浮子喷嘴的直接烧制型连续热处理炉中浮动地支撑金属带的方法。 在这种方法中,炉气最初被供给并被多个多级增压风扇加压。 供给到增压风扇的炉内气体的温度小于风扇的临界温度。 当炉内气体的温度低于带状材料的温度时,将炉内气体的温度升高到设置有各种直接烧制式燃烧器的燃烧室内的材料温度附近的温度。 然后将炉煤气供应到浮子喷嘴,其内部压力在喷射之前被控制。
    • 97. 发明授权
    • Method of sintering an injection-molded article
    • 烧结注塑制品的方法
    • US4836980A
    • 1989-06-06
    • US147345
    • 1988-01-22
    • Nobuo KashiwadaniHitoshi Ohta
    • Nobuo KashiwadaniHitoshi Ohta
    • B22F3/10
    • B22F3/1017
    • In a method of sintering an injection-molded article of raw material powder and organic binder, the injection-molded article already debinderized is initially heated up to a certain reaction temperature at which residual binder is removed from it. In subsequent decarburizing step, the residual binder is removed from the molded article under atmospheric or reduced pressure, while being supplied with H.sub.2 gas. Thereafter, in a reducing and sintering step, the molded article is heated up to a sintering temperature and is held at this temperature under reduced pressure for a predetermined period, with H.sub.2 gas being supplied. H.sub.2 content of the atmosphere in the decarburizing step is kept higher than that in the reducing and sintering step.
    • 在烧结原料粉末和有机粘合剂的注射成型制品的方法中,已经脱胶的注射成型制品最初被加热到从其中除去残留粘合剂的一定反应温度。 在随后的脱碳步骤中,在大气压或减压下,将剩余的粘合剂从模制品中除去,同时供给H 2气体。 然后,在还原烧结工序中,将成型体加热至烧结温度,在该温度下,在供给H2气的同时,在该温度下保持规定时间。 脱碳工序中的气氛的H 2含量保持高于还原烧结工序。