摘要
高钒索不用进行二次防腐处理,可提高工作效率,逐渐取代原有的半平行钢丝束拉索。研制的160 mm大直径高钒索采用锌-5%铝-混合稀土合金镀层钢绞线为主索体,索体公称抗拉强度为1 670 MPa,索体表面A级镀层,Z捻向。给出了索体生产工艺流程。研制过程中,拆股钢丝直径5.5 mm,钢丝最小破断拉力41.18~44.68 k N,镀层面质量≥307 g/m2。索体钢丝采用锌-5%铝-混合稀土合金镀层防护,具有较高的抗腐蚀性能,是普通镀锌层的2~3倍,160 mm索体最小破断拉力≥2.176×104k N。对成品160 mm高钒索进行静载破断试验,试验结果满足各项规范要求。
High vanadium cable is no need to be treated with second anti-corrosive,work efficiency is improved,and original half parallel steel bundle cable is replaced gradually. The researched diameter 160 mm large diameter high vanadium cable adopts Zn-5% Al-mixed rare earth alloy coated steel strand as main cable,cable nominal tensile strength is 1 670 MPa,cable surface is A class coating,Z lay direction. The cable production process flow is given. In the research process,dismantle strand steel wire diameter is 5. 5 mm,steel wire minimum broken strength is 41. 18 ~ 44. 68 k N,mass fraction of galvanizing layer is no less than 307 g / m2. The cable steel wire adopts Zn-5% Al-mixed rare earth alloy coating layer to protect,has higher anti-corrosion property,is 2 ~ 3 times of normal galvanizing layer,the minimum broken strength of diameter 160 mm cable is no less than 2. 176 × 104 k N. The finished products diameter 160 mm high vanadium cable is done with static load test,test result meets all specified requirements.
出处
《金属制品》
2015年第4期9-12,16,共5页
Metal Products
关键词
高钒索
建筑结构
锌-5%铝-混合稀土合金
静载破断试验
high vanadium cable
architectural structure
Zn-5% Al-mixed rare earth alloy
static load fracture test
