How to solve the oil stain of precision screw?

Do you know the screw factory to solve the problem of precision screw oil? The following Shenzhen Shi Shi Tong screw factory will introduce you.

Precision screw cleaners can be classified according to their chemical nature. The choice of emulsifier cleaning agent usually depends on the effectiveness of the next process, and the oil film containing rust inhibitor can remain on the precision screw. An alkaline cleaner is used to remove corrosive dirt, and the quenched oil after heat treatment is considered to be effective for removal.

Precision screw screws to remove oil generally use the following cleaning agents:

1, soluble emulsion cleaning agent

Soluble emulsifiers usually contain soil, solvents, emulsifiers, builders, corrosion inhibitors and small amounts of water. The role of water is to dissolve the emulsifier, which dissolves the dirt on the surface of the precision screw and also leaves a rust-proof film on the surface. The emulsifier and detergent can hold the grease particles and dissolve them into a cleaning agent containing a solvent and oil. The emulsified cleaning agent is a concentrated pure oil product which, after being diluted in water, becomes a white emulsion liquid.

2, synthetic cleaning agent

Synthetic cleaners differ from standard alkaline cleaners in that they differ in chemical composition and are also an alkaline cleaner. Standard alkaline cleaners are essentially inorganic, while synthetic agents are organic agents containing amine-based materials. These products are designed to remove alkaline residues from single-stage cleaning and are also good rust inhibitors. Synthetic cleaners are used for moderately difficult cleaning, such as quenching oil or quenching polymer solutions on the surface of precision screws.

3, alkaline cleaning agent

The alkaline cleaner is a mixture of a builder and an alkaline earth metal salt of a surfactant. It is the most widely used cleaning agent. The starting point for adding each salt and surfactant is to ensure the cleaning effect, followed by the economy. The pH of the cleaning agent is required to be around 7. The cleaning ingredients of such cleaning agents are hydroxides, silicates, carbonates, phosphates, borates, and organic compounds.

4, acid cleaning agent

It is not an effective method to remove the general dirt on the precision screw with an acidic cleaning agent, and an alkaline cleaning agent is usually used. It is very effective to clean the special deposits such as scales with acid. The most famous process is acid leaching. In addition to rolling, welding and heat-treating the oxide layer, surface oxides, rust and corrosion products that affect the quality of the plating or oil seal, as well as water-stained deposits, can be removed with acid. Commonly used are organic acids such as sulfuric acid, hydrochloric acid, nitric acid, and citric acid and acetic acid. For the dephosphorization of high-strength precision screws before heat treatment, the first three cleaning processes are mainly used, but hydrogen corrosion should be prevented. The acid agent should contain a base acid and a corrosion inhibitor to prevent erosion of the surface of the precision screw, as well as a surfactant that enhances the scavenging ability.

Shenzhen Shi Shi Tong Metal Products Co., Ltd. mainly produces precision screws and non-standard screws. It has a wide range of applications. You can contact us if you need custom screws and purchase screws.

If you want to know more about precision screw please feel free to contact us at annie.li@szsst88.com