选用液体除油剂，弱碱性，不能对铝材有腐蚀，除油剂内尽可能不含无机物，特别是不能含有亚硝酸钠、硅酸钠、偏硅酸钠、火碱、氟化钠、氯化钠、含铬氧化剂等无机物。
The liquid degreaser shall be selected, which is weak alkaline and can not corrode the aluminum. The degreaser shall not contain inorganic substances as much as possible, especially sodium nitrite, sodium silicate, sodium metasilicate, caustic soda, sodium fluoride, sodium chloride, chromium containing oxidant and other inorganic substances.
如有色金属清洗剂，中性除油剂等。
   such as non-ferrous metal cleaning agent, neutral degreaser, etc.
除油后的防腐蚀处理剂如何选择
How to choose the anti-corrosion treatment agent after oil removal
由于铝材为软质材料，一道除油不易将浸入铝材内部的油污除掉，所以铝材防腐蚀处理应选用具有除油功能的钝化剂或氧化剂，在形成无色钝化膜的同时，将油污彻底除去。
    as aluminum is a soft material, it is not easy to remove the oil stains immersed in the interior of aluminum with one layer of oil removal. Therefore, passivator or oxidant with oil removal function shall be selected for the anti-corrosion treatment of aluminum to completely remove the oil stains while forming a colorless passivation film.
如铝材除油钝化剂、无铬脱脂氧化液等。
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