Soft water-based washing agent and washing method

Abstract

The invention provides a soft water-based washing agent and a washing method. The soft water-based washing agent is prepared from the following raw materials in percentage by mass: 6-12% of a surfactant, 0-0.1% of a corrosion inhibitor, 0-0.05% of a defoaming agent, and the balance of deionized water, wherein the surfactant is prepared by compounding a nonionic surfactant, an aqueous anion surfactant, a binary nonionic surfactant and a cationic surface active agent; the nonionic surfactant and the binary nonionic surfactant correspondingly account for 25-35% of the total weight; the aqueous anion surfactant accounts for 10-25% of the total weight; the cationic surfactant accounts for 20-29% of the total weight. With the adoption of the washing agent and the washing method, the surface residues obtained by welding with a rosin flux can be removed; a welding spot can be kept bright, and the surface insulation performance is high; the washing agent is low in complete volatility, and is safe, environmentally friendly, and free from harmful substances; the cost is low; the preparation method is simple; almost no foam is generated in the washing process; the washing technology is eas tooperate.

Description

technical field [0001] The invention belongs to the field of cleaning agent manufacturing in the electronics industry, and relates to a soft water-based cleaning agent and a cleaning process, especially suitable for integrated circuit chip The post-soldering cleaning of the riveting point (pin) and its surface. Background technique [0002] With the development of the electronics industry, the requirements for the quality of electronic products are getting higher and higher. After the welding is completed, flux residues or other foreign pollutants not only affect the appearance of the product, but also deteriorate the reliability of the product, causing short circuits, corrosion, and other electrical failures. [0003] Traditional cleaning agents containing ODS substances such as freon have a good cleaning effect on grease rosin and other resins. However, such cleaning agents contain substances that destroy the ozone layer. Improper use of halogens and their compounds in t...

AI Technical Summary

Problems solved by technology

Although they can basically meet the cleaning requirements, on the one hand, most cleaning agents are highly dependent on the type of solder and flux, the cleaning range is limited, the stability is poor, volatile and harmful to human health

On the other hand, the preparation methods of most cleaning agents are cumbersome, and some need to introduce other auxiliary equipment, and the composition of cleaning agents is complex, which will cause corrosion to solder joints, and a large number of bubbles will be generated during the cleaning process, which cannot be used for fully automatic cleaning and cleaning. ultrasonic cleaning