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公开(公告)号：USRE29881E
公开(公告)日：1979-01-16
申请号：US562197
申请日：1975-03-26
摘要： A method and apparatus of vacuum carburizing by changing the surface chemistry of a metal article through absorption and thermal diffusion of carbon, wherein oxidizing gases and other impurities are initially removed from the chamber in which the metal article is treated by evacuation and the temperature in the chamber is maintained at a level above normal carburizing temperatures, but at a point that is compatible with the physical characteristics of the chamber and the article; whereafter a source of carbon is introduced into the evacuated chamber in accordance with a preselected cycle and at a concentration that is controlled by the absolute pressure of the carbon in the chamber, so that the carbon is absorbed and diffused into the metal article at a controlled rate.
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2.发明授权
公开(公告)号：US4462577A
公开(公告)日：1984-07-31
申请号：US450312
申请日：1982-12-16
申请人： Herbert W. Westeren
发明人： Herbert W. Westeren
CPC分类号： F27B9/12 , C21D1/773 , F27B5/16 , F27B9/042 , F27B2009/126 , F27B9/028 , F27D2009/0083
摘要： A vacuum furnace having a heating chamber for heat treating work parts under vacuum therein, and a cooling chamber located adjacent to the heating chamber for receiving the heat treated work parts for the rapid cooling thereof, the work parts being rapidly cooled in the cooling chamber by the circulation of a cooling gas therein, a high-velocity fan being provided in the cooling chamber for the rapid circulation of the cooling gas over the work parts, heat transfer means located in the cooling chamber and over which the cooling gas is circulated for withdrawing heat therefrom after the passage of the gas over the work parts, and a unique door arrangement being located in the cooling chamber to insure the sealing of the cooling chamber both during the evacuation thereof upon transfer of the work parts thereto and during the cooling cycle therein, whereby in the cooling cycle the pressurized cooling gas within the cooling chamber acts to seal an inner door so that the use of exterior clamps and/or locks for sealing the cooling chamber is avoided.
摘要翻译： 一种真空炉，其具有用于在其内真空对工件进行热处理的加热室，以及与加热室相邻的冷却室，用于接收热处理后的工件以进行快速冷却，工件在冷却室中被快速冷却， 其中冷却气体循环，高速风扇设置在冷却室中，用于将冷却气体快速循环到工件上，传热装置位于冷却室中，冷却气体在其上循环抽出 在气体通过工件之后的热量，以及独特的门装置，其位于冷却室中，以确保在将工件转移到其上并在其中的冷却循环期间的排气期间冷却室的密封 ，由此在冷却循环中，冷却室内的加压冷却气体用于密封内门，从而使用外部部件 避免了用于密封冷却室的mps和/或锁。
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公开(公告)号：US4103880A
公开(公告)日：1978-08-01
申请号：US723704
申请日：1976-09-16
CPC分类号： C21D9/22
摘要： Apparatus for automatically heat treating a plurality of elongated articles, wherein only a portion of the articles are subjected to the heat treating operation, the remaining portion thereof being enveloped and prevented from reaching a temperature during the heat treating operation that produces a hardening action thereon. The articles are transferred from a magazine assembly to a pick-up station, wherein the portions thereof that are protected from the heat treating operation are clamped between a jaw assembly, the jaw assembly being elevated to locate the exposed portion of the articles in vertical position within an elevated heating chamber. Thereafter the articles are lowered from the heating chamber to a cooling station and after a predetermined cooling period are deposited on a belt by the jaw assembly for removal to a collection station.
摘要翻译： 用于自动热处理多个细长制品的装置，其中仅一部分制品经受热处理操作，其余部分被包封并防止在其中产生硬化作用的热处理操作期间达到温度。 物品从杂志组合传送到拾取站，其中保护其不受热处理操作的部分被夹持在钳口组件之间，所述钳口组件被升高以将制品的暴露部分定位在垂直位置 在升高的加热室内。 此后，物品从加热室降低到冷却站，并且在通过夹爪组件将预定的冷却时段沉积在带上以移除到收集站之后。
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公开(公告)号：US4573667A
公开(公告)日：1986-03-04
申请号：US670638
申请日：1984-11-13
摘要： An apparatus for rapidly quenching substantially flat metal workpieces which have been heated during a heat treatment process is disclosed. The apparatus comprises a substantially flat plate having a plurality of vapor relief apertures therein, a wick element which overlies the plate so that it substantially covers the apertures, and means for supplying a coolant such as water, to the wick element so that the coolant is substantially evenly dispersed therein. The apparatus is operable for urging a heated workpiece into face to face engagement with the wick element to effect intimate contact between the workpiece and the coolant in the wick element. As soon as the workpiece contacts the coolant in the wick element, at least a portion of the coolant is substantially instantaneously vaporized to effect rapid cooling of the workpiece, the vaporized portion of the coolant escaping from the wick element through the relief apertures in the plate so that it does not impede the quenching process. The apparatus is operable for rapidly and uniformly cooling a substantially flat metal workpiece through the hardening range of the metal from which it is constructed to enhance the hardness, flexibility, and durability of the metal.
摘要翻译： 公开了一种用于在热处理过程中被加热的基本平坦的金属工件快速淬火的装置。 该装置包括在其中具有多个蒸汽释放孔的基本平坦的板，覆盖板的芯芯元件，使得其基本上覆盖孔，以及用于将诸如水的冷却剂供应到油绳元件的装置，使得冷却剂 基本均匀地分散在其中。 该装置可操作用于推动加热的工件与油芯元件面对面接合，以使工件与油芯元件中的冷却剂紧密接触。 一旦工件与油芯元件中的冷却剂接触，至少一部分冷却剂基本上瞬间蒸发，以实现工件的快速冷却，冷却剂的蒸发部分从油芯元件通过板中的浮雕孔逸出 从而不会妨碍淬火过程。 该装置可操作用于通过其构造的金属的硬化范围快速均匀地冷却基本平坦的金属工件，以增强金属的硬度，柔性和耐久性。
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公开(公告)号：US4118016A
公开(公告)日：1978-10-03
申请号：US731504
申请日：1976-10-12
CPC分类号： F27B9/042 , C21D1/773 , Y10T74/20402
摘要： A vacuum furnace in which work loads are periodically introduced and processed therein without breaking the vacuum within the furnace heating chamber and including spaced door assemblies between which chambers are defined for effectively isolating the work loads during the introduction and discharge therefrom, the apparatus further including transfer mechanisms that are sequentially operated in timed relation with the door assemblies and in accordance with the heat treating cycle of the furnace for moving work loads through the various stations in the furnace.
摘要翻译： 一种真空炉，其中工作负荷被周期性地引入和处理，而不破坏炉加热室内的真空，并且包括间隔开的门组件，在这两个门组件之间限定了这些室，用于在其引入和排出期间有效隔离工作负荷，该装置还包括转移 与门组件按照时间关系顺序操作的机构，并且根据用于使工作负载通过炉中的各个站移动的炉子的热处理循环。
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