Metal surface degreasing and derusting cleaning agent for thermal spraying and preparation method thereof

Abstract

The invention is a metal surface degreasing and derusting cleaning agent for thermal spraying. The raw material composition includes components A and B, which are mixed at a volume ratio of 3:2 during preparation, wherein component A includes by weight: 5 citric acid ‑10 parts, 11‑14 parts of alkylphenol polyoxyethylene ether, 5‑14 parts of ethylenediamine, 3‑7 parts of urotropine, 5‑10 parts of dichloromethane, 15‑20 parts of vinyl bisstearamide 5-8 parts of trisodium phosphate, 3-7 parts of bis-octyl zinc salt of sulfur phosphorus, 12-15 parts of sulfamic acid, 4-6 parts of antioxidant, 3-5 parts of defoamer, 85 parts of water ‑90 parts; B component includes by weight: 20‑25 parts of sodium sulfate, 3‑7 parts of trihydroxyethylamine, 2‑5 parts of sodium tripolyphosphate, 14‑18 parts of polyoxyethylene fatty alcohol ether, two 3-6 parts of methyl silicone grease, 60-75 parts of water. The invention thoroughly cleans the carbon powder, iron filings, oil stains and other dirt on the outer surface of the metal workpiece due to processing, and the outer surface of the metal after cleaning will not be corroded in whole or in part. Since the raw materials of the product are all neutral products, the performance Mild, free of chromate and nitrite; odorless, no pollution to the environment, no harm to the human body; at the same time, the invention has low foam and easy rinsing, and is suitable for cleaning operations of automatic washing machines.

Description

technical field [0001] The invention relates to a surface cleaning agent and a preparation method thereof, in particular to a metal surface degreasing and derusting 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 is reduced, thereby significantly reducing the wear of piston rings and cylinders, which increases the service life of the engine, prolongs the maintenance interval, and significantly improves the performance of the engine. [0003] Lubricating oil or coolant is often used in the pr...

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.