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nature : commonly used solvents trichloroethene, methyl chloroform degreasing effect better use of a common foreign and domestic only in a small range. TCE vapor toxicity larger, easy decomposition, use needs to be stabilized. Degreasing, will be heated to boiling point solvent (usually low boiling point, TCE 86.9 ° C), and the impact of solvent vapors, steam and the cold surface of the parts in contact condense into liquid to dissolve and wash parts on the surface of fat, and get out slot, so the cycle will be in addition to on the surface components to the oil. As the solvent vapor density is high (TCE vapor to the air 454 times), is not easy to escape from the Passage, equipment should be located in central tube used solvent vapor condensation. TCE in light, heat, oxygen and water to the role, degrade easily out highly toxic phosgene and hydrogen chloride corrosion in the operation, should avoid water into the equipment and avoid direct sunlight.
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