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Dry-Compressing Vacuum Pumps Increase Productivity and Reduce Operating Costs in Demanding Heat-Treatment Applications

机译:干式压缩真空泵提高生产率并降低苛刻的热处理应用中的运营成本

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Vacuum furnace users are striving to increase productivity and reduce operating costs. Higher performance and reduced maintenance is now the target. Through use of dry compressing vacuum pumps, this target can now be achieved. The article will introduce the modern design of a drycompression vacuum pump with cantilevered screw rotors and highlight advantages for use in demanding vacuum heattreatment applications such as Brazing, Carburizing and Sintering. Although there are obvious environmental benefits when using dry-compressing, screw-type vacuum pumps - no contaminated waste oils and emissions, spent filters and related disposal - the main driver is their performance, ease in maintenance and cost-effectiveness when pumping in harsh heat-treatments that include or produce condensable vapors, particles, binders, fluxing agents and even cracked residues such as soot and tar. In contrast, when entering an oil-sealed vacuum pump, those items create the need for frequent and costly oil changes, filters and replacements of internal shaftseals. The productive time of the furnace is reduced by the necessary time for maintenance and service, so the risks of unplanned down-time are increased.
机译:真空炉用户正在努力提高生产率并降低运营成本。现在的性能和减少维护是目标。通过使用干式压缩真空泵,现在可以实现该目标。本文将介绍带悬臂式螺旋转子的干燥压度真空泵的现代设计,并突出了用于要求钎焊,渗碳和烧结等真空保温应用的优点。虽然使用干压缩时存在明显的环境效益,但螺丝型真空泵 - 没有受污染的废油和排放,花费过滤器和相关处理 - 主要驱动器是它们的性能,缓解在苛刻的热量时维护和成本效益 - 包括或产生可粘稠的蒸气,颗粒,粘合剂,助熔剂和甚至破裂的残留物,例如烟灰和焦油。相比之下,在进入油封真空泵时,这些物品需要频繁和昂贵的油气变化,过滤器和内部轴承型更换的需求。炉子的生产时间减少了维护和服务的必要时间,因此将增加未约会的风险。

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