What is an engine repair agent?
Friction and wear are a natural phenomenon that is common in mechanical movement. The energy loss caused by various friction and wear can account for more than 1/3 of the total energy used. For example, the cylinder liner/piston ring friction pair in the engine accounts for about 45% of the total energy loss in the engine. At the same time, wear is also one of the three main forms of material and equipment damage and failure.
At present, reducing and repairing engine wear mainly relies on one way, that is, to make the friction pair form a new compensation layer during the wear process to offset the wear and repair the damage caused by wear, that is, to add special additives to the lubricating oil to achieve self-repair of the friction pair.
The formula of engine repair agent is constantly updated
Mechanism of action of engine repair agent
The wear self-repairing material can be transferred to the friction pair surface of the equipment through the lubricating medium under the condition of equipment operation, and the mechanical friction generated during the movement of the friction pair, the chemical reaction and electrochemical reaction during the friction, etc., so that the self-repairing material interacts with the friction pair material and the lubricant, and material exchange occurs on the surface of the friction pair, and finally forms a special protective layer with the characteristics of wear resistance, corrosion resistance, high-temperature resistance or super lubrication on the wear surface of the parts, thereby realizing the dynamic self-repair of the wear surface of the parts.
Main types and formula composition of new engine repair agents
Nano single substance powder: The research and application of this type of friction reduction and self-repairing powder materials mainly refers to some low-hardness metals, that is, soft metal materials, such as copper (Cu), nickel (Ni), tin (Sn), lead (Pb), etc., with a particle size of 3 to 7nm oil-soluble. It can reduce the friction coefficient by about 15%, and its wear mark area is also reduced by about 30%.
Nano oxides and hydroxides: Titanium dioxide (TiO2) with an average particle size of 30 nm and a specific surface area of 30 m/g was added to 350S N base oil and wear tested with G C r l5 (C64-65HR) steel balls on a HQ-1 friction and wear tester. The anti-wear effect is obvious.
Nano sulfides: molybdenum sulfide (MoS), copper sulfide (CuS), lead sulfide (PbS), zinc sulfide (ZnS), etc.
Silicate powder: serpentine Mg6S i4O10(OH)8 and nephrite Ca(MgFe)5(SiO11)(OH)2.
Nanocomposites: nano WS2 and MoS2 composite particles
Nano polymer microspheres: polymer nano polymer microspheres are a new type of water-based lubricating additive material.
Molybdenum Dithiophosphate liquid MoDTP CAS 72030-25-2
Supplier
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