Title: Permeating crack-detection coated film strippable developer and using method
Application Number: 93111531 Application Date: 1993.06.09
Publication Number: 1096366 Publication Date: 1994.12.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01B21/30,G03G9/00
Applicant(s) Name: Wu Boyun, Wu Boyun Address: 210048
Inventor(s) Name: Wu Boyun
Attorney & Agent:
Abstract:
     This invention refers to a material for nondestructive testing, which is a chemical mixture colloid consists of nitrocellulose, acetate rayon and solvent thereof. In the post process coating or brushing the surface of tested parts to form homogeneous film, this film can record undistortionally defects dedected by liquid penetrant test, fluorescent test and magnetic powder inspection, its sensitivity and dissolution rate are not lower than each one of above mentioned testing method and can not be affected by material and quality, photo condition and test site. The method using adhesive tape to strengthen film layer can make the film separate with tested part easily, which can be used for analysing defects property by reseacher or used as technical documents to preserve.
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