Process for degreasing and cleaning metal surfaces
    1.
    发明授权
    Process for degreasing and cleaning metal surfaces 失效
    金属表面脱脂和清洗工艺

    公开(公告)号:US5503682A

    公开(公告)日:1996-04-02

    申请号:US232274

    申请日:1994-05-05

    摘要: The invention relates to a process for degreasing and cleaning metal surfaces with surfactant containing aqueous cleaning liquids in baths and/or by spraying. In order to obtain an exact measurement of the bath load and cleaning reserve economically and quickly to allow more accurate subsequent metering of the cleaning agent, the invention provides that, as a measure of the current reserve of cleaning liquid, a bubble tensiometer is used to measure a value correlated with the dynamic surface tension and operated with a sufficiently constant gas flow, the measurements are compared with a predetermined set value obtained for the cleaning agent used by calibration, and, depending on the results of comparison, appropriate steps are taken to treat the cleaning liquid.

    摘要翻译: PCT No.PCT / EP92 / 02462 Sec。 371日期:1994年5月5日 102(e)日期1994年5月5日PCT提交1992年10月28日PCT公布。 公开号WO93 / 09264 日期:1993年5月13日。本发明涉及一种使用含有洗涤液和/或喷雾的含水清洗液的表面活性剂对金属表面进行脱脂和清洗的方法。 为了经济地和快速地获得浴的负载和清洁储备的精确测量以允许更精确的随后的清洁剂的计量,本发明提供了作为清洗液当前储备的量度,使用气泡张力计 测量与动态表面张力相关的值并以足够恒定的气流进行操作,将测量值与通过校准所使用的清洁剂获得的预定设定值进行比较,并且根据比较结果,将适当的步骤 处理清洗液。