Steel lock for link chain, includes lock halves each having pin and recess such that sliding surfaces of pin and recess are coated with coating layer consists of 10 to 12 volume percent nickel and 88 to 90 volume percent zinc

摘要

The steel lock includes lock halves (2) each having a pin (21) and a recess (22). The sliding surfaces (211,212,213,221,222,223) of the pin and the recess are coated with a coating layer consists of 10 to 12 volume percent nickel and 88 to 90 volume percent zinc. An independent claim is also included for a method for coating the sliding surfaces of the pin.