ESTIMATION OF TENSILE STRENGTH FOR EXTENSION OF MATERIAL OF BOTTOM BRICKS USING ULTRASONIC METHOD

摘要

Determination of true tensile strength for extension of material of boffom bricks (PBUG sort) has been conducted via extension of fillet specimens. Stable correlative relationship has been obtained between tensile strength for extension and speed of ultrasonic distribution in bottom bricks. It is proposed to use ulftrasonic method tor estimation of temsile strength for extength for tensile strength for extension of material for coal-graphite bottom bricks; ultrasonic speed is a parameter of this method.