HIGH-PRESSURE APPARATUS Russian patent published in 1997 - IPC

FIELD: production of extra hard materials. SUBSTANCE: apparatus contains two coaxially arranged arrays, each clamped with steel rings and being in contact with flat surface of base plate constituting ring-clapped insert. End of the base plate insert, touching end of array, is made as a piece with flat surface in the center and spherical or conical surface on periphery. Diameter of the flat part of insert end d₁ is less than diameter of array end d₂ being in contact with the former, and outer diameter of base plate insert D is greater than diameter of array end d₂ ((D > d₂ > d₁)). Largest service life of apparatus is achieved when diameter d₁ = 0.7-0.9 d₂, D = 1.2-1.8 d₂, and radius of spherical surface of insert end is 1.5-6.0 D. If periphery of the base plate insert end is made in the form of conical surface, optimum angle between generatrices of cone is 160-176 deg. EFFECT: increased service life of apparatus at least by 30%. 4 cl, 5 dwg, 1 tbl