测试方法对不同强度钢丝帘线破断力的影响  

Effect of Test Methods on Breaking Force of Steel Cord with Different Tenacity

作　　者：黄萍 王爱萍 陈嗣强 王博 孟鹭一 任长春 杜新禹 王镇 HUANG Ping;WANG Aiping;CHEN Siqiang;WANG Bo;MENG Luyi;REN Changchun;DU Xinyu;WANG Zhen(Zenith Steel Group(Huai’an)New Material Co.,Ltd,Huai’an 223001,China)

机构地区：[1]中天钢铁集团(淮安)新材料有限公司,江苏淮安223001

出　　处：《橡胶科技》2025年第3期165-168,共4页Rubber Science and Technology

摘　　要：研究测试方法对2×0.30HT,2×0.30ST和2×0.30UT 3种不同强度钢丝帘线破断力的影响。结果表明:当拉力试验机的夹具间距离较大(56 cm)时,所测破断力的精密度和准确性比夹具间距离较小(34 cm)时差,并且对于特高强度2×0.30UT钢丝帘线测试影响尤为明显;夹具间距离较大时在夹具上垫一层80μm砂纸,所测2×0.30UT钢丝帘线破断力平均值高于未垫砂纸时,而平均偏差和标准偏差则大幅减小,测试的准确度提高,并且试样断口多为理想的颈缩断口。The effect of test methods on the breaking force of 2×0.30HT,2×0.30ST and 2×0.30UT steel cords with different tenacity was studied.The results showed that when the distance between the fixtures of the tensile testing machine was larger(56 cm),the precision and accuracy of the measured breaking force were poorer than those from the smaller distance between the fixtures(34 cm),and the effect was particularly evident for the ultra-high tenacity 2×0.30UT steel cord.When the distance between the fixtures was larger,by placing a layer of 80μm sandpaper on the fixtures,the average breaking force of the 2×0.30UT steel cord measured was higher than that without sandpaper,while the average deviation and standard deviation were significantly reduced.It could be seen that placing sandpaper on the fixtures could improve the accuracy of the test,and the test sample fracture surface was mostly an ideal necking fracture surface.

关 键 词：钢丝帘线 破断力 测试方法 

分 类 号：TQ330.389[化学工程—橡胶工业]