Treating agent applied to metal part in internal combustion engine and preparation method thereof

Abstract

The invention discloses a treating agent applied to a metal part in an internal combustion engine. The treating agent comprises a stain remover, a pore-enlarging agent, a binder and a micro-arc oxidation liquid, wherein the stain remover comprises amino trimethylene phosphonic acid, diethylamine, sodium tartrate, sodium metasilicate pentahydrate, triethylene tetramine, malic acid, cocofatty acylamido propyl betaines and a sulfuric acid solution; the pore-enlarging agent is prepared from ethylenediamine tetraacetic acid tetrasodium salt, sodium citrate, sodium carbonate, malic acid, cocofatty acylamido propyl betaines and water; the binder comprises ethylenediamine tetraacetic acid tetrasodium salt, sodium metasilicate pentahydrate, sodium carbonate, polyethylene glycol, ethylenediamine tetraacetic acid disodium salt and water; the micro-arc oxidation liquid comprises sodium hexametaphosphate, sodium silicate, sodium carbonate, sodium tungstate, sodium aluminate and ethylenediamine tetraacetic acid disodium salt. The invention discloses a preparation method of the treating agent applied to the metal part in the internal combustion engine. The invention discloses an application method of the treating agent applied to the metal part in the internal combustion engine.

Description

technical field [0001] The invention relates to the technical field of surface treatment of internal combustion engines, in particular to a treatment agent applied to internal metal parts of internal combustion engines and a preparation method thereof. Background technique [0002] The generator set includes an internal combustion engine, a generator and a control system. As an important part of the internal combustion engine, the aluminum alloy cylinder block has been widely used for a long time due to its light weight and high strength, but it is not suitable for In the case of high temperature, high pressure, and high-speed relative motion, the inner friction surface is usually electroplated or otherwise surface hardened before use to increase its wear resistance. [0003] The micro-arc oxidation treatment process is a treatment process for the inner surface of an aluminum alloy cylinder developed in recent years, especially the micro-arc oxidation treatment process of th...

AI Technical Summary

Problems solved by technology

[0004] However, since the roughness of the surface of the aluminum alloy cylinder body cannot meet the requirements, the adhesion strength of the microcrystalline ceramic layer formed on the surface cannot meet the requirements, which makes the internal combustion engine alumina ceramics fall off during the running-in stage or in the initial use stage after running-in. The cylinder block or piston of the internal combustion engine is damaged by strain or scratch, and in serious cases, the cylinder of the internal combustion engine will be scuffed, which greatly shortens the reliability and service life of the internal combustion engine, increases the cost of use, and makes the micro-arc oxidation treatment process unable to be well popularized and applied.