Cleaning-free rust-preventative oil composite additive and preparation method thereof

Abstract

The invention discloses a cleaning-free rust-preventative oil composite additive and a preparation method thereof. The cleaning-free rust-preventative oil composite additive comprises 5 to 20% of benzotriazole, 10 to 45% of heptadecenylimidazoline alkenylamine succinate, 10 to 45% of barium petroleum sulfonate, 15 to 55% of low-base number calcium petroleum sulfonate, 15 to 55% of zinc didecylnaphthalene sulfonate and 5 to 15% of flux oil. The preparation method comprises the following steps: heating the flux oil to 65 to 85 DEG C; then successively adding benzotriazole, heptadecenylimidazoline alkenylamine succinate, barium petroleum sulfonate, low-base number petroleum calcium sulfonate and zinc didecylnaphthalene calcium sulfonate; and carrying out stirring at a constant temperature of 65 to 85 DEG C for no less than 95 min so as to obtain the composite additive. 1 to 20% of the composite additive is added into corresponding base oil so as to obtain thin-film rust preventive oil, so the purposes of rust prevention during sealed storage and rust prevention among machining procedures are achieved; and since the composite additive has good compatibility and implements thin-film rust prevention, cleaning-free assembling can be realized.

Description

technical field [0001] The invention relates to a fine chemical product, in particular to a no-cleaning antirust oil composite additive and a preparation method thereof. Background technique [0002] Mechanically processed metal parts have anti-rust problems between processing procedures and during storage and transportation, and sealed equipment also has anti-rust problems. At present, long-term storage in China generally adopts the dura-coat anti-rust method. When assembling parts, first The remaining anti-rust film must be cleaned before assembly. When starting the sealed equipment, the anti-rust hard film must be cleaned, derusted and maintained before it can be started smoothly. It will consume a lot of money and man-hours, especially for military equipment. To achieve the purpose of quick start. [0003] Therefore, the present invention can effectively solve the corrosion problem and fast start-up problem of equipment under long-term storage conditions, and can realiz...

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Problems solved by technology

[0002] Mechanically processed metal parts have anti-rust problems between processing procedures and during storage and transportation, and sealed equipment also has anti-rust problems. At present, long-term storage in China generally adopts the dura-coat anti-rust method. When assembling parts, first The remaining anti-rust film must be cleaned before assembly. When starting the sealed equipment, the anti-rust hard film must be cleaned, derusted and maintained before it can be started smoothly. It will consume a lot of money and man-hours, especially for military equipment. To achieve the purpose of quick start