Anti-scaling compound anti-freezing fluid for locomotives

Abstract

The invention discloses an anti-scaling compound anti-freezing fluid for locomotives. The anti-freezing fluid is prepared from the following components in parts by weight: 40-70 parts of glycerol, 0.05-1 percent of sodium metasilicate, 0.4-2.5 percent of sodium benzoate, 0.3-1.5 percent of scaling and corrosion inhibitor, 0.5-3.6 percent of sebacic acid, 10-15 percent of silicone, 4-5 percent of methyl silicon oil, 4-5 percent of isocaprylic acid, 2-4 percent of p-nitrophenol, 0.4-0.6 part of polysiloxane, 1-8 percent of glycerinum and the balance of deionized water. The anti-freezing fluid with good stability has the advantages that a formula system without phosphate radical is adopted, combination of molybdate and organic acid is used in the formula to protect metals together, sodium nitrate is assisted to provide long-time durable metal corrosion, and massive sebacic acid applied in the formula has an excellent addition effect for corrosion resistance of metals.

Description

technical field [0001] The invention relates to an antifreeze fluid, which belongs to the field of chemical industry, in particular to an anti-scaling compound antifreeze fluid for locomotives. Background technique [0002] Antifreeze is a liquid with a low freezing point. The aqueous solution containing a certain amount of ethylene glycol will not freeze at low temperatures. It has good fluidity and can take away a large amount of heat generated by the engine during operation. It can be used all year round. Used in automobile antifreeze water cooling system, it has the advantages of anti-boiling, anti-corrosion, anti-scaling, anti-freezing, and anti-evaporation loss. According to the evaluation of the impact on the environment, the types of antifreeze can be divided into environmentally friendly pure organic acid antifreeze and low-grade inorganic salt antifreeze. Pure organic acid antifreeze is environmentally friendly and easy to biodegrade, but the cost of use is relativ...

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a phosphorus-free multi-effect antifreeze that does not contain phosphate ions and does not use low-grade inorganic salts of silicon and boron, and solves the problem of metal corrosion resistance. problem, anti-fouling compound antifreeze for locomotives that can provide longer-term protection