Surface descaling cleaning compound for thermal spray and preparation method thereof

Abstract

The invention is a surface descaling cleaning compound for thermal spray. The cleaning compound consists of a component A and a component B, which are mixed by a volume ratio of 3: 1 for preparation. The component A comprises, by weight, 1-2 parts of ethylenediaminetetraacetic acid, 6-10 parts of polyether, 4-9 parts of ethylene diamine, 1-4 parts of sodium hydroxide, 5-10 parts of methylene chloride, 11-16 parts of vinyl bisstearamide, 5-8 parts of calcium alkylbenzenesulfonate, 2-4 parts of ZDDP-T203, 12-15 parts of fatty acid diethanol salt, 4-6 parts of an antioxidant, 3-5 parts of a defoamer and 50-65 parts of water; and the component B comprises, by weight, 15-19 parts of sodium carbonate, 3-8 parts of triethanolamine, 2-5 parts of triethylamine urea, 21-26 parts of polyoxyethylene fatty alcohol ether, 3-6 parts of zinc bis(dihydrogen phosphate) and 40-55 parts of water. The cleaning compound can thoroughly clean powdered carbon, iron filings and oil stain formed on the outer surface of a metal workpiece in machining, and the cleaned outer surface of the metal does not show overall or partial corrosion phenomenon. Because the product raw materials are all neutral products, the cleaning compound has the advantages of mild performance, no chromate or nitrite, no odor, no environmental pollution, and harm on the human body; meanwhile, the cleaning compound is low in foam, easy to rinse, and applicable to cleaning operations of an automatic washing machine.

Description

technical field [0001] The invention relates to a surface cleaning agent and a preparation method thereof, in particular to a surface descaling cleaning agent for thermal spraying and a preparation method thereof, belonging to the technical field of metal surface treatment. Background technique [0002] Coatings applied by thermal spraying have long been known for many applications. For example, in vehicle engines, the surface of the oil-lubricated cylinder running-running surface has been coated for a considerable period of time, especially by plasma spraying, which significantly reduces the friction between the piston ring and the cylinder wall. The coefficient of friction, thereby significantly reducing the wear of piston rings and cylinders, makes the service life of the engine longer, the maintenance interval (such as oil change) is extended, and the performance of the engine is also significantly improved. [0003] Lubricating oil or coolant is often used in the proce...

AI Technical Summary

Problems solved by technology

[0003] Lubricating oil or coolant is often used in the processing of many metal devices. When there is oil stain on the metal surface, the effect of thermal spraying is often affected by surface impurities such as oil stains during thermal spraying, which will seriously lead to thermal spray coating. Stripping brings inconvenience to processing and production, so the surface of the device is often cleaned before spraying. Traditional surface cleaners have strong odor and corrosion to metal surfaces.