Cleaning agent for automobile cooling system

Abstract

The invention provides a cleaning agent for an automobile cooling system. The cleaning agent comprises, by weight, 3 to 20% of glycolic acid, 2 to 9% of citric acid, 2 to 10% of methanesulfonic acid, 1 to 10% of ammonium citrate, 0.5 to 7% of a corrosion inhibitor and 0.01 to 2% of a surfactant, with the balance being deionized water. The cleaning agent for the automobile cooling system in the invention can effectively remove calcium scale, magnesium scale and iron rust in the cooling system, is applicable to cleaning of a variety of materials like carbon steel, iron, copper and aluminum in a cooling system of an engine and has the advantages of high efficiency, mildness and a low corrosion rate. The cleaning agent is applicable to general repair and maintenance of an automobile and is used for removing dirt generated due to usage of water as a cooling medium so as to increase the efficiency of heat transfer between the engine and the cooling medium and enable operation of the engine to be smoother.

Description

technical field [0001] The invention relates to an organic acid type cleaning agent, in particular to an automobile cooling system cleaning agent, which belongs to the field of chemical industry. Background technique [0002] Today's cars, especially diesel cars, in summer use, in order to save costs, drivers usually add tap water to the coolant or replace all of them with tap water. This practice will cause scaling or rust on the cooling system water channel and the water tank wall. Dirt will affect the heat transfer capacity of the water tank and water channels, causing overheating of the engine and affecting the normal operation of the engine; scale will make the water channels gradually thinner, which will affect the strength of metal components, and the adhered scale will also affect the flow of cooling medium. [0003] In order to remove dirt and rust from the inner surface of the cooling system, technicians have tried many methods, the most common of which is cleaning...

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Problems solved by technology

[0005] 1. Inorganic acid type, that is, add inorganic strong acid to the water tank for cleaning. The cleaning speed of inorganic acid is fast and the effect is good, but the cleaning process will cause great corrosion to the metal parts of the cooling system. If you continue to add water as the cooling medium after cleaning, it will corrode the metal more serious

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