LIQUID PENETRANT REMOVING AGENT FOR LIQUID PENETRATION FLAW DETECTION TEST

摘要

PURPOSE:To easily and certainly perform the flaw detection of a specimen having a complicated shape by simply removing the powdery adsorbent having adsorbed the liquid penetrant remaining on the surface of the specimen by using a brush or by sucking, by using an inorg. or org. powder adsorbing the liquid penetrant for a flaw detection test as a removing agent. CONSTITUTION:A powder 6 (liquid penetrant removing agent) with a particle size of 5-20mum such as an inorg. powder such as an Al2O3 or SiO2 powder, starch such as wheat flour or an org. pigment powder is scattered on the liquid penetrant 2 for a flaw detection applied to the surface of a specimen 1. After the powder 6 adsorbed the excessive liquid penetrant 2 sufficiently, said powder 6 is removed by using a brush or by sucking. After removal, a developer 5 is sprayed to uniformly coat the surface of the specimen 1 to develop an aperture flaw 3. By this method, the aperture flaw 3 of the specimen 1 having a rough surface state or a complicated shape can be simply and certainly detected.