Effect of surface treatments on wear resistance of spring steel wire as a work-piece material of a fishing net-weaving machine component

摘要

Wear resistance of lower hook, an important fishing net-weaving machine component made from spring steel wire, was improved by systematically investigating the influences of manufacturing factors using experimental design and response surface methodology (RSM). Three manufacturing factors of hard-chrome plated lower hooks including hook forming temperature, plating time and polishing condition were studied and optimized for maximum wear resistance. It was found by statistical analysis of variance (ANOVA) that the polishing condition and the interaction between hook forming temperature and plating time significantly affected the hardness of hooks. The hook forming temperature of 30 ° C, plating time of 80 min, and thread and polishing condition were found to be the optimal manufacturing condition by RSM coupled with desirability function and were proven to give higher wear resistance of the hook compared with those produced with non-optimal condition.