Waterborne low-foam metal surface cleaning agent for thermal spraying and preparation method thereof

Abstract

The invention discloses a waterborne low-foam metal surface cleaning agent for thermal spraying. The waterborne low-foam metal surface cleaning agent comprises the following raw materials: a component A and a component B, wherein the component A and the component B are mixed at a volume ratio of 4:1 during preparation; in parts by weight, the component A comprises 4-8 parts of ethylenediaminetetraacetic acid, 11-18 parts of polyether, 10-15 parts of trihydroxyethyl amine, 1-4 parts of octadecenoic acid, 5-10 parts of dichloromethane, 10-17 parts of ethylene bis-stearamide, 5-8 parts of calcium alkylbenzene sulfonate, 2-4 parts of zinc dialkyl thiophosphate, 12-15 parts of benzotriazole, 4-6 parts of an antioxidant, 6-8 parts of a defoamer and 75-80 parts of water; in parts by weight, the component B comprises 14-16 parts of sodium carbonate, 3-8 parts of butanediol, 5-7 parts of sodium gluconate, 6-8 parts of triethylamine urea, 17-19 parts of polyoxyethylene aliphatic alcohol ether, 3-6 parts of alkanolamide and 40-55 parts of water. The waterborne low-foam metal surface cleaning agent can be used for radically cleaning dirt such as carbon powder, scrap iron, oil stains and the like formed on the outer surface of a metal workpiece due to machining; the cleaned metal outer surface is not integrally or locally corroded; the raw materials of the waterborne low-foam metal surface cleaning agent are all neutral products, so that the waterborne low-foam metal surface cleaning agent is mild in performance and does not contain chromate and nitrite; the waterborne low-foam metal surface cleaning agent is odorless, free of environmental pollution and harmless to a human body; at the same time, the waterborne low-foam metal surface cleaning agent is low in foam quantity, easy for rinsing and suitable for cleaning operation of an automatic cleaning machine.

Description

technical field [0001] The invention relates to a surface cleaning agent and a preparation method thereof, in particular to a metal surface water-based low-foaming 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 oft...

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.