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一、清洗原理和效果1.原理:三氯乙烯(C_2HCl_3)为中性、无色透明、常温下带氯芳香的液体。它是一种强溶剂,其溶油能力在常温下比汽油大4倍。在正常使用条件下(120℃以下)对金属无腐蚀性,不易爆炸、燃烧。金属表面清洗原理是利用三氯乙烯的沸点低(87℃),用较少的热能即获得三氯乙烯的蒸汽,又利用三氯乙烯蒸汽密度大(4.54克/升)的特点,把它的蒸汽保持在所需的蒸汽面高度之内,当洗件放到蒸汽中,在洗件上冷凝的三氯乙烯即把金属表面的油污
First, the cleaning principles and effects 1. Principle: Trichlorethylene (C_2HCl_3) is neutral, colorless, transparent, room temperature with chlorine aromatic liquid. It is a strong solvent with 4 times more solvent capacity than gasoline at ambient temperature. Under normal conditions of use (120 ℃ below) non-corrosive to the metal, not easy to explode, burn. The principle of metal surface cleaning is to use the low boiling point of trichlorethylene (87 ℃), with less heat to obtain the trichlorethylene steam, and the use of trichlorethylene vapor density (4.54 g / l) of the characteristics of its The steam is kept within the required steam surface height, and when the washings are placed in steam, the trichlorethylene condensed on the washings means the oil on the metal surface