Fuel tank leakage test method

Abstract

The invention belongs to the technical field of welding detection and particularly relates to a fuel tank leakage test method, which comprises the following steps of: (1) removing welding slag, oxideskin, rust and dirt with a range of 30 mm of a fuel tank detected part and polishing the detected part; (2) dry wiping the fuel tank detected part with an acetone solution, then heating a diluted cleaning agent to 35 to 55 degrees centigrade, cleaning the detected part with the cleaning agent for 1 to 10 minutes in a spraying, wiping and ultrasonic manner, and then drying the detected part; (3) selecting a punching method or a fluorescence method according to whether a gap is formed between a weld joint of the detected part and a base material; and (4) welding a marked defect and then repeating the step (3) for leak detection until no defect occurs. The method can be well used for the detection of the weld joint, has high detection precision, and is less likely to cause missing detection.

Description

Technical field: [0001] The invention belongs to the technical field of welding detection, and in particular relates to a leak testing method for an oil tank. Background technique: [0002] Weld seam leakage is an important indicator of container control. Some weld seam leakage will affect personal safety and product performance containers, and sometimes cause major safety accidents and quality accidents. At present, in addition to controlling the welding process, the welding seam Leakage detection is also an essential part. Traditional operations generally use the coloring method or the overall airtight method to detect the weld. The overall airtight method is not suitable for welding parts, and the coloring method has poor accuracy. The coloring part is not obvious when it is too small, and it is easy to miss detection. Invention content: [0003] The object of the present invention is to provide a fuel tank leak detection method with high detection accuracy and not eas...

AI Technical Summary

Problems solved by technology

[0002] Weld seam leakage is an important indicator of container control. Some weld seam leakage will affect personal safety and product performance containers, and sometimes cause major safety accidents and quality accidents. At present, in addition to the control of the welding process, the welding seam Leakage detection is also an essential part. Traditional operations generally use the coloring method or the overall airtight method to detect the weld. The overall airtight method has poor applicability to welding parts, and the coloring method has poor accuracy. When the color is too small, the coloring part is not obvious, and it is easy to miss the detection.

Images