Preparation method of yttrium oxide photoexcited synergistically fine-grained high-alumina bronze indicator coating

Abstract

The invention discloses a method for preparing a high-alumina bronze indicating coating through optical excitation in collaboration with fine grain strengthening of yttrium oxide. The surface of a 45# steel substrate is cleaned through ultrasonic waves, the spraying welding surface of the cleaned 45# steel substrate is subjected to roughening treatment through an acid spraying technique, and the treated substrate is placed into a heat treatment furnace to be preheated till the temperature is 260-300 DEG C; and high-alumina bronze powder and yttrium oxide powder are weighed according to the mass percent of (99.4-99.8):(0.2-0.6), and are subjected to mechanical alloying in a stirring ball mill, the powder is dried, is subjected to ball milling and is loaded into a welding gun, and the high-alumina bronze indicating coating is prepared on the preheated 45# steel substrate through a plasma spraying welding machine under the conditions that the transfer arc current is 165-175 A, the working voltage is 25.4-26 V, the powder feeding quantity is 17-21 g / min, and the distance of the welding gun and a workpiece is 8-11 mm.

Description

technical field [0001] The invention relates to a self-sensitive luminescent on-line monitoring technology for worn and corroded surfaces, in particular to a method for preparing a high-alumina bronze coating doped with yttrium oxide fluorescent particle function indication. Background technique [0002] Wear detection is an important way to evaluate the wear degree of materials. Commonly used wear detection technologies include acoustic emission, photothermal radiation, dynamometer, vibration, ferrography, etc. Since these detection technologies realize wear evaluation through the development of advanced sensors and other equipment, the cost High and requires rich production data, it is not easy to promote. [0003] Using a luminescent coating to monitor wear and corrosion surfaces on-line will greatly reduce the requirements for sensors and other components and simplify the operation process. That is to say, the luminescent particles are incorporated into the wear-resista...

AI Technical Summary

Problems solved by technology

[0002] Wear detection is an important way to evaluate the wear degree of materials. Commonly used wear detection technologies include acoustic emission, photothermal radiation, dynamometer, vibration, ferrography, etc. Since these detection technologies realize wear evaluation through the development of advanced sensors and other equipment, the cost High and requires rich production data, not easy to promote

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