Printing method of carbon fiber coating on piston skirt and its curing furnace

Abstract

The invention provides a printing method and curing oven for a piston skirt carbon fiber coating, and relates to the technical field of engine piston surface strengthening. According to a piston produced through the printing method and curing oven for the piston skirt carbon fiber coating, compared with a piston produced in the prior art, surface defects of the carbon fiber coating are reduced, and the positive effects that the bonding strength of the carbon fiber coating and a base body is enhanced, and the requirement of a high-strength engine is met are achieved.

Description

technical field [0001] The invention relates to the technical field of engine piston surface strengthening, in particular to a carbon fiber for the piston skirt [0002] Coating printing method and its curing oven. Background technique [0003] Two important parameters to measure engine performance are power per liter and maximum burst pressure PCP, which brings about an increase in engine strength and load, and the engine has continuously increased requirements for piston weight, structure, and friction loss. Among them, the influence of skirt coating on friction function accounts for about The friction work of the entire piston is more than 20%, so a good piston skirt coating can effectively reduce the friction work. At present, the widely used graphite coating has poor tribological performance when the piston is running. The piston moves up and down with the crank During dead center movement, the piston skirt is in frequent contact with the cylinder wall, posing a risk o...

AI Technical Summary

Problems solved by technology

[0003] Two important parameters to measure engine performance are power per liter and maximum burst pressure PCP, which brings about an increase in engine strength and load, and the engine has continuously increased requirements for piston weight, structure, and friction loss. Among them, the influence of skirt coating on friction function accounts for about The friction work of the entire piston is more than 20%, so a good piston skirt coating can effectively reduce the friction work. At present, the widely used graphite coating has poor tribological performance when the piston is running. The piston moves up and down with the crank During dead center movement, the piston skirt is in frequent contact with the cylinder wall, risking abrasive wear during the initial start-up phase of the engine

Although some manufacturers try to use carbon fiber coating, they cannot meet the needs of high-strength engines due to defects such as pinholes, air bubbles on the coating surface, and poor bonding strength of the coating.

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