DEVICE FOR INVESTIGATION OF PLASTIC METALS AND ALLOYS

摘要

The utility model relates to the determination of physical and mechanical properties of metals and alloys, more particularly, to devices designed for construction engineering structural materials diagram plasticity deformation at room temperature. Summary of the utility model is that the fixed container device for building engineering ductility diagrams configured workspace providing deformation of preforms with an initial diameter of from 0.5 mm to 20 mm and disposed between the base and the floating rigid matrix which is held in initial (upper) position, placed in the workspace elastic member, namely a compressed air, and creating back pressure force, which allows to create a plastically deformable material blank stress state with a different value of the index stress state in one step forging press or the testing machine, by combining in a single device boarding and radial extrusion, the adjustment values ​​backpressure force carried out by the connected to the device control system test equipment and compressed air is fed into the working space of the container through the fitting, and a system of channels formed in a rigid base. Using the proposed design of the device allows: to increase the versatility of the device to plot constructional materials plasticity, plasticity diagram engineering construct at least three points (experience) indicators corresponding to different state of stress, and also provide the possibility of deformation of the workpiece at room temperature. 1 bp 2 and ZP Formula floor. mod., illustration:. FIG. 1.