Barium-free soft film antirust oil

Abstract

The invention relates to a barium-free soft film antirust oil. In terms of 100% of the total weight of the barium-free soft film antirust oil, the barium-free soft film antirust oil comprises the following components: 10-20% of refined mineral oil, 10-25% of a compound barium-free antirust agent, 2-5% of a film-forming agent, 0.5-1.5% of an antioxidant, 0.1-1.5% of a copper corrosion inhibitor, 0.5-3% of dibutyl phthalate, 0.5-3% of Span 80, and the balance dearomatization solvent oil. Specifically, the compound barium-free antirust agent comprises petroleum calcium sulfonate, calcium dinonylnaphthalene sulfonate and a gemini imidazoline corrosion inhibitor. The soft film antirust oil provided by the invention has low solvent oil aromatic hydrocarbon content, does not contain barium or other heavy metals, while meeting the environmental protection requirements of foreign environmental protection laws and regulations for exported metal product antirust materials, greatly improves the rust-proof performance of products, is applicable to medium and long-term storage and package rust prevention of ferrous metal products and copper-containing metal workpieces, also has excellent storage stability, is free of precipitate after long-term placement, and the oil film is thin and easy to clean, and can achieve assembly with oil.

Description

technical field [0001] The invention relates to the field of anti-rust oil, in particular to an environment-friendly soft film anti-rust oil resistant to salt spray, damp heat and barium-free. Background technique [0002] Anti-rust oil is widely used in the metal machining industry at home and abroad due to its advantages of good anti-rust effect, convenient use, low cost, easy construction, easy operation and easy removal, and its consumption accounts for about 1% of the total consumption of lubricating oils . The core of anti-rust oil is anti-rust additives, among which oil-soluble sulfonate is the most widely used ferrous metal anti-rust agent with outstanding anti-rust performance, mainly including barium petroleum sulfonate (T701), sodium petroleum sulfonate ( T702), barium dinonyl naphthalene sulfonate (T705), neutral barium dinonyl naphthalene sulfonate (T705A), calcium petroleum sulfonate, calcium dinonyl naphthalene sulfonate, etc. Due to the mature process and m...

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Problems solved by technology

[0011] The main purpose of the present invention is to provide a barium-free soft film anti-rust oil, to overcome the barium pollution environment contained in the anti-rust oil in the prior art, and the problems of poor anti-rust performance and short anti-rust period

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