The main classification of industrial metal cleaning agent


Release time:

2019-11-07

Cleaning can be narrowly interpreted as removing the target oil. In principle, there are three paths: dissolution, emulsification and saponification; in terms of commodities, there aresolvent type cleaning agentwithwater-based cleaning agent。”
Cleaning in the metal processing process is generally the cooling and lubricating medium in the cleaning process, which is often referred to as oil. In principle, the removal of oil is three methods, one is the solvent method, the oil is not soluble in water, but soluble in organic solvents, so that the oil is dissolved and dispersed in the solvent, to achieve the removal of oil and cleaning the workpiece. The second is the emulsification method, using the amphiphilic nature of surfactants, the lipophilic end adsorbs oil molecules, the hydrophilic end adsorbs water molecules, curling and emulsifying to form a suspended emulsion, thus washing the oil on the surface of the workpiece. The third is the saponification method, which uses alkaline substances to react with oils and fats to generate advanced fatty acid salts, namely soap. Soap molecules also have amphiphilic properties, the lipophilic end and the hydrophilic end, and the surfactant to clean the oil stain, can be stripped to clean the surface of the workpiece.

InIndustrial cleaning agentIn the application, the above three principles of oil removal are divided into twoCleaning agent, I .e.solvent type cleaning agentandWater-based cleaning agent.

As the name implies, solvent-based cleaning agent, is to choose the appropriate organic solvent to effectively dissolve the target oil, and then through the method of high-pressure distillation of organic solvent purification, to achievesolvent type cleaning agentRecycling use. The use of solvent-based cleaning agents has high requirements for cleaning equipment, complex design, high cost, and a large margin of safety and high cost.

Water-based cleaning agent, because of its use can be diluted with water, water as a large number of the main cheap solvent, has been widely used in industry. Reuse is widely used because of safety, low requirements for equipment, simple operation, and suitable for mass production. Water-based cleaning agent is a combination of the advantages of emulsification method and saponification method, the priority of the formulation of the cleaning agent, to achieve a stable architecture and the realization of division of labor and complementarity. In order to obtain a higher cleaning efficiency, more thorough oil stripping capacity as a priority, the design of the formula.

   Industrial cleaning agentThe proper meaning of chemical application is to use in large quantities, repeatable, stable and continuous, and to control adverse reactions and maintain a stable and effective solution system. The adverse reaction of the water-based cleaning agent is mainly the control of corrosion, which is manifested in the prevention of metal corrosion during the cleaning process and the inter-process corrosion prevention between the next process after cleaning. For ferrous metals, corrosion is rusting, discoloration, etc. outside of the process objectives that affect surface quality. A stable and effective solution system reflects the service life of the cleaning agent. It must reach a certain degree of service life to have industrial value, that is, it is stable and effective within a certain production cycle, which is the prerequisite for entering industrial production.

Water-based cleaning agents in industrial applications to control corrosion, water-based cleaning agents must be considered. A large part of the target oil to be cleaned in the process is also used to prevent corrosion. The balance between clean washing power and rust resistance in water-based cleaning is a group of very subtle twins, which can show the talent of the formulator and the wisdom of the application engineer.
 

The main classification of precision industrial cleaning agents