Modernization of a machine for micromechanical tensile testing at high temperatures

The rigid dynamometer of the IRM-0.2 tensile testing machine of the Moscow Engineering-Physical Institute was improved. The auxiliary elements of the dynamometer which carry the mechanical and electronic load recording devices (dial and mechanotron) and the mounting knife-edge support are now welded instead of screwed to the dynamometer proper. The location of some of the recording elements was altered to make it more convenient, and a micrometer screw was provided for a smoother and finer setting of load. Control resistors were added to the voltage divider making possible a more accurate calibration of the measuring system at various levels of recorded test loads. The range of loading rates at which the tensile machine can operate has been broadened by the use of different pulleys and motors. The heating and temperature equipment was also altered to make possible manual and automatic control with greater precision.