Control system for scheduling parts in a heat-treating process
    1.
    发明授权
    Control system for scheduling parts in a heat-treating process 失效
    用于在热处理过程中调度零件的控制系统

    公开(公告)号:US5187670A

    公开(公告)日:1993-02-16

    申请号:US609359

    申请日:1990-11-05

    摘要: A control system for heat-treating parts in a furnace structure is provided. A plurality of processing chambers, each having at least one part position, are adapted to simultaneously process a plurality of parts each for a respective predetermined processing time. A memory device stores first records representing processing times associated with each of the parts within each processing chamber, second records representing a desired processing path associated with each part through at least one processing chamber, and third records representing the number and location of occupied part positions within each processing chamber. A computerized control center calculates desired processing times associated with at least one processing chamber for a new part to be processed in the processing chamber. Additionally, the computerized control center determines an entrance time for the new part to enter the furnace structure, in response to the first, second, and third records, and to the calculated desired processing times.

    摘要翻译: 提供了一种用于在炉结构中热处理部件的控制系统。 每个具有至少一个部分位置的多个处理室适于同时处理多个部件,每个部件各自预定的处理时间。 存储器设备存储表示与每个处理室内的每个部件相关联的处理时间的第一记录,表示通过至少一个处理室与每个部件相关联的期望处理路径的第二记录,以及表示占用部件位置的数量和位置的第三记录 在每个处理室内。 计算机化控制中心计算与处理室中待处理的新部件的至少一个处理室相关联的期望处理时间。 此外,计算机化控制中心响应于第一,第二和第三记录以及计算出的所需处理时间来确定新部件进入炉结构的入口时间。

    Carburized low silicon steel article and process
    2.
    发明授权
    Carburized low silicon steel article and process 失效
    渗碳低硅钢制品及工艺

    公开(公告)号:US4921025A

    公开(公告)日:1990-05-01

    申请号:US348736

    申请日:1989-04-13

    IPC分类号: C21D1/78 C23C8/22

    摘要: A process for forming a carburized steel article includes carburizing a steel material containing not more than 0.10% silicon and less than 1.1% chromium to form an austenitic surface matrix having a high density of carbides dispersed therein. After quenching, the carburized steel article is characterized by an outer surface having a high ratio of carbides and is substantially free of intergranular oxides. As a result of preventing undesirable surface oxide formations and simultaneously providing a beneficial surface carbide structure, the bending fatigue strength, wear properties, and contact fatigue strength of articles such as gears, shafts, bearings and couplings are greatly enhanced.

    摘要翻译: PCT No.PCT / US88 / 04470 Sec。 371日期:1989年4月13日 102(e)日期1989年4月13日PCT提交1988年12月14日PCT公布。 出版物WO89 / 05865 日本1982年6月29日。一种渗碳钢制品的制造方法,包括对含有不大于0.10%的硅和小于1.1%的铬的钢材进行渗碳,以形成其中分散有高密度碳化物的奥氏体表面基体。 淬火后,渗碳钢制品的特征在于具有高比例的碳化物的外表面,并且基本上不含晶间氧化物。 作为防止不希望的表面氧化物形成并同时提供有益的表面碳化物结构的结果,大大提高了诸如齿轮,轴,轴承和联轴器的制品的弯曲疲劳强度,磨损性能和接触疲劳强度。