关于粗直径钢丝绳破断拉力特性的探讨  

Study on large diameter steel wire rope's breaking force

作　　者：秦万信 张云 

机构地区：[1]咸阳宝石钢管钢绳有限公司,陕西咸阳712000

出　　处：《金属制品》2014年第2期52-58,共7页Metal Products

摘　　要：BS 302/P7—1989、ISO 8369—1986、EN 12385-4:2002中粗直径钢丝绳最小破断拉力计算公式在形式上具有高度的相似性。GB/T 20067—2006给出公式显示钢丝绳最小破断拉力与直径的平方比为常数,与钢丝绳强度级别成正比,而从BRIDON、KISWIRE、Usha martin给出数值看,结果并非如此。GB/T 20067—2006的1 960 MPa级6股钢芯钢丝绳最小破断拉力与所述外企给出EIPS级以上钢丝绳相应数值相比,并不呈现恒大或恒小的规律。GB/T 20067—2006给出钢丝绳最小破断拉力数值的可靠性需进一步验证。对粗直径钢丝绳,钢丝尺寸的增大、钢丝直径差异的增大、钢丝强度的升高等因素变化后对钢丝综合性能产生的影响会涉及钢丝绳破断拉力。The formula of large diameter steel wire rope＇ s minimum breaking force in BS 302/P7--1989, ISO 8369-- 1986, EN 12385 -4：2002 has highly similarity. GB/T 20067--2006 gives the formula and show the ratio between steel wire rope ＇ s minimum breaking force and diameter＇ s square is a constant and in proportion to steel wire rope＇ s strength grading. But according to the data from BRIDON, KISWIRE and Usha martin, result is not the same. Compare with GB/T 1 20067--2006 1 960 MPa level 6 strands steel core wire＇ s minimum breaking force and above EIPS level steel wire rope rel- evant data provided by foreign enterprise, there＇ s no constant big or small rule. GB/T 20067--2006 shows the reliability of steel wire rope＇ s minimum breaking force data needs more verification. The effect on steel wire general performance of steel wire＇ s size increasing, wire diameter difference increasing and wire strength increasing, and other elements changes will involve steel wire rope＇ s breaking force.

关 键 词：粗直径钢丝绳 破断拉力 直径 结构 钢丝 

分 类 号：TG356.45[金属学及工艺—金属压力加工]