1. Soluble emulsion cleaner Soluble emulsifier usual […]
1. Soluble emulsion cleaner
Soluble emulsifier usually contains soil, solvent, emulsifier, detergent, corrosion inhibitor, and a small amount of water. The role of water is to dissolve the emulsifier. The cleaning agent can dissolve the dirt on the surface of the fine China nut and leave an anti-rust film on the surface. Emulsifiers and detergents can hold oil particles and dissolve them in detergents containing solvents and oils. An emulsified cleaning agent is a concentrated pure oil product, which becomes a white emulsion after being diluted with water.
2. The composition of the cleaning agent
China nut manufacturer introduced that the difference between composition detergent and standard alkaline detergent is the chemical composition, which is also alkaline detergent. Standard alkaline detergents are basically inorganic, and the ingredients are organic reagents containing amino substances. This product is designed to eliminate alkaline residues in single-step cleaning and is also a better rust inhibitor. The composition cleaner is used for moderately difficult cleaning, such as cleaning the surface of fine screws with quenching oil or quenching polymer solution.
3. Alkaline cleaner
Alkaline detergent is a widely used detergent, which is made of alkaline earth metal salt of detergent and surfactant. The starting point for adding each salt and surfactant is to ensure cleanliness first, and economy second. The pH of the cleaning agent is required to be about 7. The cleaning components of this cleaner are hydroxides, silicates, carbonates, phosphates, borates, and organic compounds.
hydroxide can provide high alkalinity and relatively low cost. A small number of additives can meet the alkalinity and conductivity, which is very important for electrolytic cleaning and saponification. The disadvantage is that it is difficult to rinse and the cleaning effect of unsaponifiable dirt is not good. The pH value of a 1% solution can reach 1.3. Alkaline cleaning fluid can be sodium salt or potassium salt, mainly used for cleaning alloy steel China nut.
4. Pickling agent
Using acidic cleaners to remove general dirt on fine China nuts is not a useful method, but alkaline cleaners are usually used. It is very useful for the pickling of scale and other special accessories. The well-known process is acid leaching. In addition to oxide coatings for rolling, welding and heat treatment, surface oxides, rust, and corrosion products and water-based deposits that affect the quality of electroplating or oil seals can be removed by acid. Commonly used are sulfuric acid, hydrochloric acid, nitric acid, citric acid, acetic acid, and other organic acids. At present, the first three cleaning processes are the most important for the dephosphorization of high-strength fine screws before heat treatment, but hydrogen corrosion should be avoided. The acid agent should contain alkali acid and corrosion inhibitor to prevent corrosion on the surface of the fine screw, and should also contain a surfactant to improve the removal ability.
detergent mainly contains a solvent, surfactant, and water.