发明申请
US20110138695A1 METHODS FOR APPLYING ABRASIVE WEAR RESISTANT MATERIALS TO A SURFACE OF A DRILL BIT 审中-公开
将磨损耐磨材料应用于钻头表面的方法

METHODS FOR APPLYING ABRASIVE WEAR RESISTANT MATERIALS TO A SURFACE OF A DRILL BIT
摘要:
Methods for applying an abrasive wear-resistant material to a surface of a drill bit include providing a drill bit having a bit body formed of a material comprising one of steel material, particle-matrix composite material and cemented matrix material, mixing a plurality of −40/+80 ASTM mesh dense sintered carbide pellets in a matrix material, heating the matrix material to a temperature above the melting point of the matrix material, applying the molten matrix material and at least some of the dense sintered carbide pellets to at least a portion of an exterior surface of the bit body; and solidifying the molten matrix material.
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