Intelligent spray control method and device for coating porosity of waste oil treatment equipment

Abstract

The invention discloses an intelligent spray control method and an intelligent spray control device for coating porosity of waste oil treatment equipment. The method comprises the following steps of: acquiring a T-S fuzzy model of the coating porosity and a spraying technological parameter by using experiment data and an intelligent control strategy; inputting the T-S fuzzy model into a programmed logic controller (PLC) to form an intelligent control system; controlling the conveying of an air source to a spray gun combustion chamber through a flow distributing and collecting valve by using the intelligent control system and the speed of a telescopic cylinder of a sprayed workpiece; and controlling a spray voltage and current regulator to supply appropriate spray voltage and spray current so as to fulfill the aim of controlling main spray technological parameters and obtain high coating porosity. The device has a compact structure and high sensitivity, is controlled flexibly by a programmable mode, realizes automation and reduces the influence of personal factors on the coating porosity.

Description

Technical field: [0001] The invention relates to a spraying intelligent control method and device for coating porosity of waste oil treatment equipment, and relates to the technical field of waste oil equipment surface treatment. Background technique: [0002] Arc spraying technology is a newcomer among thermal spraying technologies that emerged in the 1980s. Due to its high quality, high efficiency, low cost, and wide application fields, it has become one of the most valued technologies in thermal spraying technology. Arc spraying technology can prepare smooth, dense, high-quality coatings with high bonding strength, which is close to the level of plasma spraying, and has partially replaced flame spraying and plasma spraying internationally. In recent years, the high-speed arc spraying technology has improved the injection speed of particles, improved the heating and melting state, and thus has higher kinetic energy. When bombarding the substrate, the impact kinetic energy ...

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Problems solved by technology

However, the influence of each parameter on the porosity of the coating has a large inertia and delay, and is nonlinear and slowly time-varying, which is difficult to control accurately. Generally, the design of the porosity of the sprayed coating is based on experience, which is very important for the arc. There is still no effective method for how to achieve smooth switching and reduce human error in a system with severe nonlinearity in spraying.

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