METHOD FOR EVALUATING TECHNICAL STATE OF PIN

FIELD: testing equipment. ^ SUBSTANCE: method includes measuring profile of pin thread and hardness of pin material. Yield point is determined. Hardness limit for pin material is calculated, pin hardness capacity and by calculation on basis of measured hardness value, wear properties of material are determined. Measurement of thread profile is performed by photographing by digital camera a threaded portion of pin or scanning pin by board scanner, received image is inputted to computer with following forming of thread profile on screen of computer display, for example using program Word. Measured thread profile is compared to base standard thread profile and on basis of that speed of corrosion and wear or deformation values are determined, on basis of received data law of regression process of pin is determined, and then pin as a member of a series is subjected to tear test and real value of pin hardness limit is determined with following comparison of hardness capacity received experimentally to calculated capacity, calculated on basis of measured thread parameters, then technical state of pin is evaluated as well as state of equipment or assembly where pin was used is determined indirectly. ^ EFFECT: higher efficiency. ^ 3 cl