BOREK ALEKSANDER,ZDROJEWSKI BOGDAN ROMAN,GRUSZKA ANDRZEJ,GRZELKA RYSZARD
申请号：
PL40371913
公开号：
PL224779B1
申请日:
2013.04.29
申请国别(地区):
PL
年份:
2017
代理人:
摘要：
The method for increasing shearer bit durability is characterised by application of at least two strips (6) and/or rings (7) of composite metallic substance (1) on a conical surface (2) of shearer bit (3). Other variants foresee the creation of a bevel (11) around the base of a carbide metal sinter insert (5).
