7×7结构超高强度钢丝帘线破断力影响因素的探讨  

Discussion on Factors Affecting Breaking Force of Ultra-high Tenacity Steel Cords in 7×7 Structure

作　　者：姚利丽[1,2] 王威 朱晨露 陈长新[1,2] YAO Lili;WANG Wei;ZHU Chenlu;CHEN Changxin(Jiangsu Xingda Steel Cord Co.,Ltd,Taizhou 225721,China;Jiangsu Key Laboratory for Structural and Functional Metal Materials Composites,Taizhou 225721,China)

机构地区：[1]江苏兴达钢帘线股份有限公司,江苏泰州225721 [2]江苏省结构与功能金属复合材料重点实验室,江苏泰州225721

出　　处：《橡胶科技》2022年第9期426-430,共5页Rubber Science and Technology

摘　　要：从生产实际出发,研究影响7×7结构超高强度钢丝帘线破断力的因素。结果表明:7×7结构超高强度钢丝帘线破断力受多因素影响,其中一个重要的因素是单丝强度,当单丝强度大于3500 MPa时帘线破断力捻制损失急剧增大;破断力捻制损失与帘线结构有关,相同强度单丝捻制单股结构和层状结构钢丝帘线时,破断力捻制损失较小;7×7结构超高强度钢丝帘线破断力捻制损失受面股的影响较大,受芯股的影响较小,破断力捻制损失主要产生在股线合成帘线阶段,并且与合绳的捻距和放线张力稳定性有关,随着捻距越大,钢丝帘线的破断力捻制损失基本呈线性减小,张力稳定,帘线破断力捻制损失较小。Starting from the actual production,the factors affecting the breaking force of the ultra-high tenacity steel cords in 7×7 structure were studied.The results showed that the breaking force was affected by many factors,one of which was the strength of monofilament.When the strength of monofilament exceeded 3500 MPa,the twisting loss of the breaking force of the steel cord increased sharply.The twisting loss of the breaking force was also related to the cord structure.When the same strength monofilaments were twisted into a single-strand structure and a layered structure steel cord,the twisting loss of the breaking force was relatively small.The twisting loss of the breaking force of the 7×7 structure was greatly affected by the surface strands,and was less affected by the core strands.The twisting loss of the 7×7 structure mainly occurred in the cord twisting stage,and was related to the twist pitch of the cord and setting out tension stability of the equipment during cord twisting process.When the twist pitch increased,the twisting loss of the breaking force of the steel cords decreased,and when the tension was stable,the twisting loss was small.

关 键 词：钢丝帘线 超高强度 破断力 捻制损失 

分 类 号：TQ330.389[化学工程—橡胶工业]