METHOD FOR HYDRAULIC CUTTING OF AGRICULTURAL MATERIALS Russian patent published in 1997 - IPC

FIELD: material cutting equipment. SUBSTANCE: method refers to technology of treating and cutting of various structural materials by high-pressure jet of liquid or its mixture with other substances (abrasives, polymeric additives) and can be widely used for cutting, cutting-out and production of parts of various configurations, and also in cleaning and finishing surfaces of parts and devices. According to method, high-pressure working jet is discharged from nuzzle unit of hydrocutting equipment for action upon object moving relative to working jet, and value of feed $$$ of object to be treated relative to working jet is determined by formula: $$$, m/s, where : - diameter of cutting working jet, m; V - velocity of working jet, m/s; $$$ - density of working jet, kg/cub.m; n - expected number of passes; $$$ - shearing strength of material of object to be treated, n/sq.m; H - thickness of object, m; K - i - 1.9 - experimental coefficient depending on value n. EFFECT: increased speed and productivity in cutting high-strength materials. 1 tbl