MULTILAYER PRODUCTS ULTRASONIC FLAW DETECTION ADJUSTMENT PATTERN Russian patent published in 2023 - IPC G01N29/30 

FIELD: adjusting an ultrasonic flaw detector sensitivity and scanning.

SUBSTANCE: Usage: for adjusting an ultrasonic flaw detector sensitivity and scanning. Multilayer products ultrasonic flaw detection adjustment pattern consists of the joined layers, in which the flat-bottom hole is made, the pattern is made of three adhesive-jointed layers shaped as the article, the first layer is made of metal, the intermediate layer is a polymer composite material, the third layer is made of ceramic, a stopper is glued to the metal layer and the polymer composite layer consisting of two parts, one of which is made of metal and the other of a polymer composite material, glued through a layer repeating the product shape, the stopper has a blind hole of 3.5-6.0 mm diameter and 1.5-2.0 mm depth in the centre of the polymer composite layer facing the ceramic layer.

EFFECT: invention provides possibility to increase sensitivity and reliability of continuity and thickness control of adhesive bonding in multilayer products made of materials with different specific wave impedances.

2 cl, 1 dwg