Investigation on effects of dynamic fatigue frequency, temperature and number of cycles on the adhesion of rubber to steel cord by a new testing technique

摘要: Abstract The effects of dynamic fatigue frequency, temperature and number cycles on the adhesion rubber to steel cord in a carcass recipe were examined. A new test method with special rubber/steel specimens was developed for measurements which carried out De Mattia Rubber Flexometer. It found that “pull-out forces” decreased increase but first increased then increasing cycles. failure mainly occurred phase rather than at interface. covered “pulled-out” after appeared form screw thread greater pull-out force corresponded more uniform clearer threads remaining cord. Steel an outer wrapping wire had static better fatigue; some contact point wrapped main wires. coverage along twist direction wire. SEM indicated un-dispersed filler agglomerates may initiate failure.