Anti-rust cutting fluid protects the tool to improve quality - long hair manufacturing

Metal rust-proof cutting fluids generally contain additives such as lubricants, extreme pressure agents, surfactants, rust inhibitors , preservatives, and defoamers. Nantong Changfa Chemical Co., Ltd. will introduce you:
1 Microemulsion cutting fluid
Modern semi-synthetic anti-rust cutting fluid , commonly known as microemulsion, is diluted to a certain proportion of water, widely used in metal rust-proof cutting fluids and other processing technologies, eliminating the disadvantages of emulsified and synthetic cutting fluids. The advantages of these cutting fluids are integrated. It is widely used as a lubricant for mechanical processing and cooling, and has good functions such as lubrication, cooling, rust prevention, and cleaning, which makes the rust-proof cutting fluid also have the above functions. Its main components are water and surfactants, mineral oil, fatty oil and extreme pressure agent content are lower than emulsified oil. The microemulsified oil includes components such as oil, water, surfactant, rust inhibitor, oiliness agent, extreme pressure agent, fungicidal bactericide, and the like.
(1) Oil phase and water phase: The MICRO emulsified oil content of the rust-proof cutting fluid is generally 10% to 30%. The oil not only has a lubricating effect but also serves as a carrier for oil-soluble additives. The high moisture content of the microemulsified oil is 45%. The presence of large amounts of water is a major feature that distinguishes it from emulsified oils. This is not only the need for even surfactants, but also provides the necessary conditions for the use of various types of water-soluble additives. Starting from the environment and health, the content of aromatics in oil is required to be less than 10%; starting from the compatibility with additives. Paraffin-based and cycloalkyl-based c-base oils are preferred. Often used; mechanical oil, vegetable oil, white oil, No. 15 paraffin base oil.
(2) Surfactant: The high degree of refinement of the dispersed phase in the anti-rust cutting fluid microemulsion and the stability of the system are achieved by the action of the wetting, dispersing, emulsifying and solubilizing of the surfactant. In the emulsified oil, the amount of surfactant is 20% to 25%, while in the microemulsified oil, its amount can be higher than 40% to ensure the fineness of the dispersed phase oil droplets, and the system maintains high stability. Surfactants are key substances that emulsify oil and water and are generally divided into three types: cationic surfactants, anionic surfactants and non-ionic surfactants. The participation of a large number of surfactants makes the penetration and cleaning ability of the microemulsion much stronger than that of the emulsion, which helps to maintain the sharpness of the cutting edge and the grinding wheel and the cleanliness of the cutting surface, thereby improving the cutting efficiency and processing accuracy. Commonly used anionic and non-ionic surfactants have a good effect. Surfactants commonly used: fatty acid soaps, petroleum sulfonate fatty alcohol polyoxyethylene ethers, nonylphenol polyoxyethylene ethers, Tween, fatty acid alkyl amides, sorbitol esters, polyethers, etc.
(3) Corrosion Inhibitors: In order to protect machine tools, tools, and workpieces from the erosion of emulsions, rust inhibitors must be added to the rust- proof cutting fluid in order to form a protective film on the metal surface or form a passivation film. Anti-rust additives are mainly composed of water-soluble rust inhibitors and oil-soluble rust inhibitors. Water-soluble additives include sodium nitrite, benzotriazole, boric acid, triethanolamine, phosphate, chromate, phytic acid, sodium benzoate, sodium molybdate and anhydrous sodium carbonate. They interact with metals and generate an insoluble dense oxide film on the metal surface that prevents electrochemical corrosion of the metal. This type of rust inhibitor is mostly an electrolyte. When it is used in an emulsion, the amount is not so large that the electrolytic phenomenon may damage the emulsion.
(4) Oily agent: In order to protect the tool and improve the processing quality, such additive is an indispensable component of the rust-proof cutting fluid . Such additives include animal and vegetable fats, fatty acids and soaps, fatty alcohols and polyols, sulfurized oils, ketones, and amines. They are molecules with polar groups that form oriented adsorptive films on metal surfaces. In metal processing, this film can reduce the direct friction between the workpiece, cutting, and the metal between tools, reduce the workpiece surface roughness, improve the accuracy of the workpiece and extend tool life.
The above are some additives of rust-proof cutting fluid components. For more information about rust-proof cutting fluid , please pay attention to Nantong Changfa Chemical Co., Ltd.
  
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