Development of ultra-high breaking force wire rope for European electric hoist
Ultra-high breaking force wire rope for European electric hoist is developed.The product standard refers to DIN EN 12385-4:2008 2 160 MPa Class B,diameter is 6.20～6.40 mm,lay pitch multiple is 6～8,minimum breaking force is 46.0 kN.Through analysis of structure and property,it is determined that wire rope adopts K8 ×K19S-PWRC(K)structure,then wire diameter and wire matching are precisely calculated according to wire rope structural characteristics,reasonable drawing process was matched.Wire rope was laid by 18/500 basket type rope closing machine,strand tension control adopted FMS tension on-line detection and adjustment system,double compaction process of rolling and forging is adopted in production.The properties test results show that measured diameter is 6.36～6.38 mm,measured lay length is 39.3 mm,measured breaking force reaches 48.8 kN,measured zinc layer mass is greater than 30.0 g/m2,which meets technical requirements of European electric hoist equipment.
European electric hoistwire ropeultra-high breaking forcelay lengthtension controldouble compaction
NETL
NSTL
万方数据
