Introduction of cleaning agents commonly used for fasteners

Introduction of cleaning agents commonly used for fasteners

In order to better and faster maintain the application characteristics of rivet nuts and rivet nut fasteners, it is necessary to clean and maintain the fasteners frequently. What cleaning agents are there for rivet nuts and rivet nut fasteners? ? Which fastener cleaners are good? Today, the editor will introduce it to you. 

1. Soluble emulsion cleaning agent Soluble emulsifier is generally composed of emulsifier, soil, organic solvent, builder, desulfurizer and very small amount of water. The purpose of water is to dissolve the emulsifier, and the cleaning agent will return the surface of the fastener to leave a layer of anti-rust film while melting the waste on the surface of the fastener. Emulsion cleaning agent is a concentrated pure oil product, which turns into a milky white milky liquid after being diluted in water. The emulsifiers and detergents in the period are able to grab the vegetable oil particles and incorporate them into the cleaning agent with organic solvents and oils.

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   2. Alkaline cleaning agent Alkaline cleaning agent is made by mixing a builder and an alkali metal salt of an external surface active agent. It is a widely used cleaning agent. It is stipulated that the pH value of the cleaning agent is around the cleaning ingredients of this type of cleaning agent are nickel hydroxide, aluminosilicate, sulfide, polyphosphate, borate and their organic chemical chelates. Each of the above salts and surfactants is mainly to ensure the cleaning effect, and secondly to be effective.

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   3. Decontamination agent Decontamination cleaning agent mainly contains organic solvent, surface active agent and water. Unlike emulsion cleaners, it is a pure aqueous solution, not emulsified oil. It is mainly used for defensive cleaning of machinery equipment and fastener outer packaging.

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   4. Constituent cleaning agent The composition cleaning agent is also an alkaline cleaning agent. The difference between the standard alkaline cleaning agent and the standard alkaline cleaning agent depends on the composition. The standard alkaline cleaning agent is essentially inorganic, while the forming agent is an amine-based chemical substance. Organic chemical agents. Standard alkaline cleaners are used to remove alkaline residues from single stage cleaning and are still relatively good rust preventive oils. Synthetic cleaning agents are used for moderately difficult cleaning, such as quenching oil or heat-treated polymer solutions for cleaning the surface of fasteners.

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   5. Acidic and alkaline cleaning agents generally include organic substances such as hydrochloric acid, sulfuric acid, sodium cyanide, sodium citrate, and glacial acetic acid. Regarding the heat treatment process of high-toughness rivet nuts and blind rivet nut fasteners, the phosphating treatment film is mainly used at this stage. The first three cleaning processes are mainly used, but hydrogen corrosion should be prevented. The acid-base agent should contain basic acid, a desulfurizer to prevent corrosion of the surface of metal fasteners, and a surfactant to grow and remove. However, there is generally no need for acid-base cleaning agents to remove general waste on metal fasteners, and alkaline cleaning agents are generally used. It is very effective to clean the scale and other appendages with acid, and the process is acid leaching. In addition to cold rolling, welding and heat treatment processes to oxidize the surface, surface oxides, rust and corrosion products, and water stains that affect the quality of electroplating or skeleton sealing can all be removed with acid.

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