Lye cleaning
A cleaning method based on the chemical action of alkali, Tianjin seamless square tube manufacturer, because of its easy use, Tianjin seamless square tube, low price, easy to obtain raw materials, is widely used. Since the alkaline washing process relies on various effects such as saponification and emulsification, a single alkali cannot be used to achieve the above performance. Usually multiple components are used, and sometimes additives such as surfactants are added. The level of alkalinity determines the extent of the saponification reaction, and high alkalinity can reduce the surface tension between the oil stain and the solution, making the oil stain easy to emulsify. In addition, the cleaning agent on the surface of the rectangular tube can be removed by washing with water after alkaline washing.
Surfactant cleaning
It is a widely used degreasing method by using the characteristics of surfactants such as low surface tension, good penetration and wettability, and strong emulsification ability. Through the emulsification of surfactants, an interface film with a certain strength is formed on the oil-water interface, which changes the state of the interface, so that the oil stains are dispersed in the aqueous solution to form an emulsion. Or through the dissolving effect of the surfactant, the water-insoluble oil on the rectangular tube can be dissolved in the surfactant micelles to achieve the purpose of transferring the oil to the aqueous solution.