三角股钢丝绳生产和技术发展新特点

三角股钢丝绳应用范围扩大,生产企业增加。捻制方法可以分为:(1)采用串联机组,特殊的三角股绳预变形用双支架预变形器将绳股捻制成三角形并预制螺旋;(2)圆股压制三角股。6V×37S+FC—38,6V×37+FC—48,6V×37+FC—50,6V×21+7FC—24等结构规格钢丝绳开始出口,进口要求提高,必须接受煤矿安全标志认证。技术发展新特点:新的专利技术出现,如电铲用钢芯涂塑三角股钢丝绳专利和架空索道用异形股钢丝绳专利;技术交流范围和深度扩大,与国外钢丝绳专家合作生产的6V×36+FC—30,6V×37S+FC—44钢丝绳在特大桥式起重机上成功应用;生产方式多样化,向着钢芯、麻芯共存的方向发展;三角股钢丝绳预张拉试验探索取得成果。

Production of triangle strand wire rope and its technology development new characteristic

Application scope of triangle strand wire rope is extending, the enterprises are increasing. The twisting process method can be divided into ： （ 1 ） adopt unit in series, using double bracket pre-deforming appratus for special triangle and rope pre-deforming to twist strand into triangle and prefabricate helix; （2） suppress round strand into triangle strand to twist. Such structure and specs as 6V × 37S ＋ FC--38,6V × 37 ＋ FC-48,6V ×37 ＋ FC--50,6V × 21 ＋ 7FC-24 start to export, the demands of import are increased, they must accept coal mine safety symbol certification. New characteristic of technology development are： appear new patent, such as steel core plastic coating triangle strand wire rope for excavator, shaped strand wire rope for ropeway built on stilts ; scope and depth of technology exchange enlarge, 6V ×36 ＋ FC--30, 6V × 37S ＋ FC-44 wire rope made by enterprise cooperated with foreign wire rope specialist were successfully used to special big bridge type crane;production mode is being diversification, develops towards steel core and hemp core coexisting; the test exploring for triangle strand pre-tension acquire fruit.