Preparation method for cleaning agent for high-temperature carbon deposit in combustion chamber of all- aluminium engine

Abstract

The invention relates to a preparation method for a cleaning agent for a high-temperature carbon deposit in a combustion chamber of an all- aluminium engine. The method comprises the following steps: dissolving all constituents in water at ordinary temperature, stirring and uniformly mixing, wherein the constituents are as follows by weight percent: 10-25 percent of organic boron amide as a rust inhibitor, 0.5-2 percent of alkyl-glycoside as an emulsifier, 1-5 percent of inorganic alkali and 68-88.5 percent of deionized water. The method has the benefits that the organic boron amide is adopted to serve as the ph-value buffer agent to stabilize the ph value of a system to be within 9-11; during cleaning, with the consumption of the inorganic alkali, the ph value of the cleaning agent system is reduced, and with the buffer agent, more alkali ions are released, so that the cleaning effect of the cleaning agent is ensured; and meanwhile, the aluminium and other alloy are almost zero in 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 refiner...

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