摘要
粗直径单股钢丝绳具有较大的破断拉力、较高的耐腐蚀性、较高的弹性模量及良好的不旋转性能，市场前景广阔。按照美国ASTMA586-2004a（镀锌线接触和点接触钢绞线》标准研发不同结构粗直径单股钢丝绳。工艺设计方案：采用线接触加多层点接触结构，相邻层钢丝等捻角（17°～19°）捻制；对拉拔及热处理工艺进行优化，半成品拉拔部分压缩率≤32％，成品拉拔后几道采用钠系拉拔粉，控制部分压缩率≤28％，采用直接水冷模盒；给出镀锌槽溶液及镀前表面处理的工艺参数；捻制工装采用自制筐篮式无极调速、工字轮可翻身捻股机。按此工艺方案，以1×145（1—9—9—9＋9—18／24／30／36）结构、050．8mm单股钢丝绳为例进行生产，给出钢丝绳设计参数，成品全部为A组镀层、2级品，符合标准要求。
large diameter single strand steel wire rope has large breaking force and higer corrision resistance, elastic mod- ulus and good non-rotating properties, whose market prospect is broad. According to American ASTM A 586-2004a Galvanized Line Contact and Point Contact Steel Strand standard to research different structure large diameter single strand steel wire rope. Process design scheme： by using line contact with muhi-point contact structure, adjacent layer steel wires spin with equal lay angle （ 17° - 19°） ; to optimize drawing and heat treatment technology, semi-finished drawing part compression ratio ≤32% , the last drawing passes of finished products use Na series drawing power, and to control part compression ratio ≤28% , and use direct cooling module; the parameters of galvanized bath and preplating surface treat- ment are given ; laying equipment uses self-made basket type stepless speed regulating and spool reversible strander. Based on above scheme and produce as 1 × 145 （1 -9 -9 -9 ＋ 9 - 18/24/30/36） structure and diameter 50.8 mm single strand steel wire rope and give steel wire rope design diameter. All finished products meet standard requirement with A group coating and 2 level.
出处
《金属制品》
2011年第4期15-18,共4页
Metal Products
关键词
粗直径单股钢丝绳
点线结构
等捻角
弹性模量
电镀锌
捻制
large diameter single strand steel wire rope
point-line structure
equal lay angle
elastic modulus
electrogalvanizing
spinning
