Special cleaning agent for zinc stearate and preparation method

Abstract

The invention discloses a special cleaning agent for zinc stearate and a preparation method. The cleaning agent is prepared by the following raw materials in 100 parts by weight: 4-6 parts of anion surface active agent fatty alcohol polyoxyethylene ether sodium sulfate, 5-8 parts of penetrating agent JFC, 6-8 parts of emulsifying agent, 5-6 parts of oxalic acid, 10-12 parts of dodecylbenzene sulfonic acid, 5-10 parts of complex compound, 15-20 parts of hydrochloric acid, and the balance of de-ionized water. The cleaning agent is simple in operation, is suitable for cleaning zinc stearate residues and oil stains on the surfaces of various aluminum parts, is suitable for dipping and ultrasonic and spray cleaning, is high in cleaning efficiency, is wide in proper temperature from normal temperature to 80 DEG C, is free of phosphorus, is environment-friendly without hurting human bodies, satisfies later processing requirements of cleaned aluminum parts, such as aluminum surface spraying or aluminum-aluminum welding requirements, can be used by matching with water by 3-5%, satisfies the enterprise cleaning requirements, and largely reduces the enterprise production and cleaning costs.

Description

technical field [0001] The invention relates to the fields of chemical industry and metal surface treatment, in particular to a special zinc stearate cleaning agent for aluminum cold extrusion using zinc stearate as a lubricant and a preparation method thereof. Background technique [0002] At present, in the field of cold extrusion processing of aluminum packaging containers, due to the good lubricity of zinc stearate, zinc stearate is generally used as an extrusion lubricant, and a large amount of zinc stearate remains on the aluminum after extrusion molding. piece surface. Since zinc stearate is insoluble in water, but soluble in hot ethanol, benzene, toluene, turpentine and other organic solvents, it is difficult for general cleaning agents to clean zinc stearate residues. Processing companies have always used traditional strong acids (sulfuric acid, sulfuric acid, Hydrochloric acid, hydrofluoric acid, etc.) or strong alkali (sodium hydroxide solution) to clean zinc ste...

AI Technical Summary

Problems solved by technology

At present, there is a strong alkaline cleaning agent compounded with phosphate and surfactant on the market to replace strong acid and sodium hydroxide solution to clean the residual zinc stearate on the aluminum surface, but because the cleaning agent uses phosphate as the main component It has caused a lot of pollution and has not been an ideal cleaning agent for zinc stearate removal; there are also some acidic cleaning agents on the market to clean aluminum extrusions, but due to the high cleaning cost, the effect is not very ideal and cannot meet the needs of aluminum cooling. The appearance requirements of the extruded parts after cleaning can not meet the process requirements of spraying or welding in the subsequent process of aluminum parts