FIELD: mining engineering.
SUBSTANCE: hardening of mounting is carried out immediately after its production by hot stamping from cylindrical work which, in order to increase the intensity of metal deformation in head part of mounting, is pre-equipped with a facet of 0.38d to 0.44d length at an angle of 5.5β up to 7β, where d - is the diameter of work, β - is the angle of inclination of the side surface of stamp. Reinforcement of mounting with a carbide insert is made by cold pressing.
EFFECT: increasing the hardness of pick mounting surface in the area of its contact with destroyed rock, which increases the service life of pick.
5 dwg
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