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    超声波清洗机能解决工业清洗问题吗?
    2019-5-16 11:10:15
    超声波清洗机解决了工业清洗难题
    The ultrasonic cleaning machine solves the difficult problem of industrial cleaning.
    超声波清洗机厂家众多,型号也是多种多样,但其主要作用都是完成各种物件的清洗工作,且其清洗效果已经得到了广大用户的广泛认可。 在很多工业厂家,都面临着这样一种难题。工件在除油、除锈、水洗、表调、磷化等工艺中渗透在焊接夹缝内的液体很难排出,且水洗不能完全清除干净,在湿热条件下夹杂物极易造成工件泛黄、生锈。如果这些残液在烘干过程中不能完全干固,随后粉末喷涂以高温烘干时,残液由于热膨胀的作用将渗出焊缝,影响涂料与金属表面的结合,造成涂层的附着力下降甚至脱离。

    There are many manufacturers and models of ultrasonic cleaning machine, but its main function is to complete the cleaning of various items, and its cleaning effect has been widely recognized by the majority of users. In many industrial factories, they are faced with such a difficult problem. It is difficult to discharge the liquid penetrated into the weld joint in the process of degreasing, rust removal, washing, surface adjustment and phosphating, and the water washing can not be completely cleaned up. Under hot and humid conditions, inclusions easily cause yellowing and rusting of the workpiece. If these residues can not be completely dried in the drying process, then when powder spraying is dried at high temperature, the residue will seep out of the weld due to thermal expansion, affecting the combination of the coating and the metal surface, resulting in the decrease or even separation of the adhesion of the coating.

                                      超声波清洗机生产厂家

    对此问题,一般工厂采用高压喷淋及多次水洗,或是改变烘干工艺,提高烘干温度来解决残液在夹缝中的残留。这些办法不仅造成了水资源和能源的浪费,同时高温烘干还破坏磷化膜,降低其抗蚀能力,因此效果并不理想。而超声波漂洗则利用了超声波“无孔不入”的特点,以及“空化”作用,因此能迅速而彻底的将焊接夹缝内的残液及杂物清除干净,达到后续加工的质量要求。
    In order to solve this problem, high pressure spraying and multiple washing are usually used in factories, or the drying process is changed to increase the drying temperature to solve the residual liquid in the cracks. These methods not only waste water and energy, but also destroy phosphating film and reduce its corrosion resistance by high temperature drying, so the effect is not ideal. Ultrasound rinsing takes advantage of the characteristics of "all-in-all" and "cavitation" effect of ultrasound, so it can quickly and thoroughly remove the residual liquid and impurities in the weld seam and meet the quality requirements of subsequent processing.
    研究证明超声波除锈、漂洗效果好坏取决于空化作用,而空化作用的产生与超声强度有关。通常在单位面积超声功率0.3/cm2水溶介质就能产生空化。在一定范围内超声强度越大空化作用越明显,一般在清洗是功率密度选为1~1.2w/cm2为宜。
    It has been proved that the effect of ultrasonic rust removal and rinsing depends on the cavitation, and the generation of cavitation depends on the intensity of ultrasound. Usually, cavitation can occur in 0.3/cm2 aqueous medium with ultrasonic power per unit area. In a certain range, the greater the ultrasonic intensity, the more obvious the cavitation effect. In general, the power density of 1-1.2w/cm2 is the best choice for cleaning.
    超声波振动频率对于清洗效果有很大影响,同等功率情况下低频率时易于激化空化,即16~25khz空化作用更好。表面处理时对于油污、锈迹比较严重的大中型机械零件采用16~20khz低频为宜,对于一些表面清洁度要求高且有盲孔、丝孔的零件采用26khz为宜。
    Ultrasound vibration frequency has a great influence on cleaning effect. Under the same power, it is easy to intensify cavitation at low frequency, that is, 16 ~ 25 kHz cavitation has the best effect. For large and medium-sized mechanical parts with serious oil and rust, it is appropriate to adopt 16-20 kHz low frequency for surface treatment, and 26 kHz for parts with high surface cleanliness and blind holes and silk holes.
    超声波清洗温度是影响清洗速度的重要因素,适当提高清洗温度可增加空化能力、缩短清洗时间,但超过一定温度,由于蒸气压力增加反而降低空化作用,因此必须保持一定的温度。试验表明水溶性介质一般在50℃±5效果更佳。
    Ultrasound cleaning temperature is an important factor affecting the cleaning speed. Properly increasing the cleaning temperature can increase the cavitation ability and shorten the cleaning time, but over a certain temperature, because the vapor pressure increases, it will reduce the cavitation effect, so a certain temperature must be maintained. Experiments show that water-soluble media generally have the best effect at 50 +5.