| 摘要 |
FIELD: mining.SUBSTANCE: diamond bore tool comprises a body with a matrix, separated by washing slots into sectors, reinforced by several rows of working layers that contain stencils and diamonds placed in their holes. Thermomelting inserts are fixed between working layers, and working layers are equipped by nets, in cells of which there are diamonds installed, besides, nets are connected with a tension spring fixed in the body slot.EFFECT: increased efficiency of operation of a bore tool, cleaning of a bottomhole from damaged particles of lower layer diamonds.2 cl, 4 dwg |
