FIELD: study of strength properties of materials. SUBSTANCE: invention specifically refers to devices determining forces required to shift particles of magnetized dispersion materials one relative another. Fixture to determine shear force of magnetized dispersion materials has table with hole, separable tray with hemispheric working space, mobile casing, limiters of its lift and movement, guides, insert with hemispherical working space and central axially symmetric hole to pour dispersion material installed in casing, locks fixing insert, cover with springy member and screw fixing position of cover with regard to mobile casing, hook for linking with dynamometric device anchored on casing, punch to transmit pressure from spring member to dispersion material located in central axially symmetric hole of insert. Tray is placed in hole of table and guides are formed by sides of tray. Limiters of lift of casing are made in the form of straps or rollers anchored on these sides. Fixture is equipped with rolling-contact bearings mounted in tray for possible contact with lower surface of mobile casing. EFFECT: diminished overall dimension of fixture, increased accuracy of determination of shear force and improved handling convenience. 3 cl, 6 dwg
