Apparatus for determining the e - module and / or the yield point or a yield strength in the case of not proportional expansion and / or of the solidification module and / or parameters of the alternating stresses and / or a predetermined bending of a finite material being straightened, such as metal sheets, strips, profiles, pipes and, in particular, of wire - and more wire shaped straightened

摘要

The invention relates to a device for discontinued determination of the E module and/or the yield resistance or yield strength during non-proportional elongation and/or the strain hardening module and/or the parameters of the alternating loads and/or a predetermined curvature of a final straightened product (7), such as metal sheets, strips, profiles, tubes and chiefly straightened products in the form of one or several wires. The inventive device has two receiving members (1, 2) with a respective drive mechanism for applying defined torque on the ends of the straightened product (7) on which a defined torque can be applied. The inventive device also comprises a measuring device (8) for determining curvature of said straightened products (7), wherein one receiving member (1) is stationary and the other receiving member (2) can move horizontally on the clamping plane of the straightened product. According to the invention, the receiving elements (1, 2) are pivotably mounted in opposite directions so that the clamped straightened product (7) can be deformed in an alternating convex or concave manner and the measuring device (8) contains a sensor for the angle of rotation of at least one of the receiving members (1, 2) and a distance sensor to measure the distance between both receiving members (1 and 2).