Cleaning foam fluid for fault detection and a preparation method thereof

Abstract

The present invention is one kind of foam type surface fault detecting and washing fluid for metal and compact non-metal material and product and its preparation process. The surface fault detecting and washing fluid consists of available washing fluid 50 %-80 wt%, precipitated magnesium aluminum silicate 10 %-30 wt%, pioloform 6 %-12 % and potassium acyl sarcosinate 4 %-8 wt%. Experiment shows that the surface fault detecting and washing fluid of the present invention can adhere to the surface of the detected object with slow running off and has fault detecting and washing effect greatly than that of available surface fault detecting and washing fluid.

Description

technical field [0001] The invention relates to flaw detection on the surface of metals, dense non-metallic materials and their parts, in particular to a foam-type penetration flaw detection cleaning solution for flaw detection on the surface of materials or workpieces and a preparation method thereof. Background technique [0002] Liquid penetrant testing method is an important method in modern nondestructive testing. It started in the early days of World War II and was first used in military industry. At present, it has become an important means in the modern manufacturing industry to improve product quality, maintain equipment safety, and prevent industrial disasters. [0003] This method is capable of detecting very fine fracture lesions that are still in their infancy on the surface of materials or components. It has the function of forecasting the upcoming fracture and damage accidents of various machinery such as ships, aircraft, bridges, and boilers. The research r...

AI Technical Summary

Problems solved by technology

But they all have some common disadvantages: volatile, easy to burn, have certain toxicity and cause certain pollution to the environment due to volatilization

[0006] There are also some problems to be solved in displaying micro-cracks on the solid-state film: because the size of the micro-cracks is extremely small, it is difficult to see with the naked eye. It is not feasible to implement on large workpieces and outdoor construction sites; and the existing portable magnifying glass cannot be used because of the limitation of magnification

[0015] (1) About 45% of the flaw detection agent is mixed with the propellant to form an aerosol with a diameter of 1-50 μm, which is scattered into the air and scattered around, resulting in a waste of resources;

[0016] (2) About 55% of the flaw detection agent is sprayed onto the surface of the test piece to be tested. The propellant and the flaw detection agent are already a miscible mixture in the pressure tank, so after the 55% mixture reaches the surface of the workpiece, about Within 10-20 seconds, about 35% evaporated with the propellant, forming aerosol and organic vapor, which again caused a waste of resources;

[0021] ②The accumulation concentration in the air reaches a certain level, which can easily cause fire;

[0022] ③Whether it is indoors or outdoors, it will cause certain environmental pollution;

[0023] ④Increase the consumption of flaw detection agent, resulting in waste of resources

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