Dandong Dongba Lubricating Material Co., Ltd.
Post code: 118007
Email: [email protected]
Address: 108 Building Industrial Park, Zhen'an District, Dandong City, Liaoning Province
What fillers are used in grease
Grease, thick, oily, semi-solid. It is used in the friction part of the machine for lubrication and sealing. It is also used on metal surfaces to fill voids and prevent rust. It is mainly composed of mineral oil (or synthetic lubricating oil) and thickener.
The main purpose of adding filler to the grease is to improve the lubricity of the grease, enhance the sealing and protective properties of the grease, increase the strength of the grease, reduce the amount of grease thrown from the friction parts, and improve the stability and reduction of the grease. Small coefficient of friction.
Before using grease fillers, they are usually dispersed, classified, purified, and activated. Graphite and molybdenum disulfide are used as grease fillers. Occasionally metal sulfides and selenides, boron nitride, lead iodide, and bauxite (such as talc, mica, vermiculite, etc.) are also used. Dispersed soft metals and metal oxides.
Fillers can be divided into two types: natural and synthetic, and can be divided into inert and active according to their functions; according to their main functions, they can be divided into anti-wear, thermally conductive, conductive, sealed, filled and special (such as , The dispersion medium guarantees lubricating effect after volatilization in vacuum); according to the structure, it can be divided into layered crystals, brazed N-type products, mist-shaped products, amorphous groups and polymers.
The effectiveness of a bulking agent depends to a large extent on the nature of the impurities that are adsorbed on the particle surface or added as a component to the bulking agent. It is particularly undesirable to have corrosive impurities and impurities (such as chlorine, fluoride ions, sulfates, sulfites, etc.) that can reduce the adhesion of the filler on the metal surface.
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