Ultrasonic gas valve inspection equipment

Abstract

The invention discloses ultrasonic gas valve inspection equipment, which comprises a box body, a stepping motor, a motor driver, an ultrasonic flaw detector, an industrial personal computer, a switchover interface and a hopper-shaped sealing cover. The stepping motor and the motor driver are arranged at the bottom of the box body; the ultrasonic flaw detector is used for detecting defects of a gas valve; the industrial personal computer coordinately controls different components; the switchover interface is connected between the industrial personal computer and the ultrasonic flaw detector; the hopper-shaped sealing cover is hermetically arranged above the stepping motor; a rotating shaft of the stepping motor penetrates through the center of the sealing cover; the gas valve to be detected is arranged above the sealing cover and is detachably connected with the rotating shaft of the stepping motor; and water is filled in a concave surface of the sealing cover. A water immersion ultrasonic penetration method is adopted, and tiny defects in a surfacing layer can be sensitively detected. Practice proves that the method has reliable sensibility. Air holes and cracks with diameters of more than 0.3mm in a cone surface range can be detected; and air holes with the diameters of 0.20mm in a cone, cone surfacing and incomplete fusion and stratification of base materials can be detected.

Description

technical field [0001] The invention relates to the field of flaw detection, in particular to an ultrasonic gas valve inspection device. [0002] Background technique [0003] The most suitable non-destructive testing method for quality testing of intake and exhaust valve sealing surfaces for internal combustion engine vehicles is ultrasonic testing. The detection of defects in the surfacing layer of the internal combustion engine valve is mainly to determine how to obtain the detection effect. Due to its umbrella-shaped shape and high requirements for detection sensitivity of defects, among the various methods of non-destructive testing, the single-reflection method is currently used for ultrasonic testing. Due to the very small working surface, the detection is very difficult and the missed detection rate is very high. High, has been difficult to solve at home and abroad. [0004] Contents of the invention [0005] The purpose of the present invention is to provide a...

AI Technical Summary

Problems solved by technology

Due to its umbrella-shaped shape and high requirements for detection sensitivity of defects, among the various methods of non-destructive testing, the single-reflection method is currently used for ultrasonic testing. Due to the very small working surface, the detection is very difficult and the missed detection rate is very high. High, it has been difficult to solve at home and abroad

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