A kind of preparation method of high-temperature carbon deposition cleaning agent in combustion chamber of all-aluminum engine

Abstract

The invention relates to a preparation method of a high-temperature carbon deposit cleaning agent for a combustion chamber of an all-aluminum engine. The method is obtained by dissolving the following components in water at room temperature, stirring and mixing evenly, and preparing each component according to weight percentage : Organoboramide 10%~25% as antirust agent, 0.5%~2% alkyl glycoside as emulsifier, 1%~5% inorganic alkali, 68%~88.5% deionized water. The beneficial effects of the present invention are: by using the organic boramide as a pH buffering agent, the pH value of the system can be stabilized between 9-11, and during the cleaning process, with the consumption of inorganic alkali, the pH value of the cleaning agent system decreases , Due to the existence of buffering agent, more alkaline ions will be released, so that the cleaning agent will not reduce the cleaning effect; at the same time, aluminum and its alloys are basically zero corrosion.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a preparation method of a high-temperature carbon deposit cleaning agent for a combustion chamber of an all-aluminum engine. Background technique [0002] The high-temperature carbon deposit in the combustion chamber refers to the colloid produced when the fuel and the lubricating oil that is stringed into the combustion chamber cannot be completely combusted. The main components are hydroxy acids, asphaltenes, oily substances, etc. , Cylinder edge, piston top, spark plug, and combustion chamber, under the action of repeated high temperature of the engine, hard cemented carbon is continuously accumulated and formed, that is, carbon deposits. Although today's engine technology is quite advanced, the efficiency of the combustion chamber is only 25% - 30%. Therefore, carbon deposits are mainly caused by the machinery itself and the poor quality of gasoline, usually from the refinery...

AI Technical Summary

Problems solved by technology

The use of patent 201010588635.X technology to clean the all-aluminum cylinder linerless engine has major technical problems, mainly manifested in the corrosion of the sprayed aluminum alloy coating by the alkaline solution, which will damage the working surface of the cylinder liner and affect the fit accuracy; due to high silicon The hardness of the aluminum coating material is lower than that of the traditional cast iron cylinder liner, and the short-term corroded surface becomes a honeycomb structure. Due to the change of the surface structure, the hardness and wear resistance of the corroded surface will decrease, especially the wear debris of the high-silicon aluminum alloy. It is easy to stick to the new surface, which increases the surface damage area, resulting in large-scale strain on the surface of the engine sprayed rigid sleeve