摘要
对Q890高强度结构钢作为液压支架用钢的减重效果进行了分析,并对其焊接性能进行了研究,确定了合理的焊前预热温度和焊后回火温度。在此基础上,将Q890高强钢代替Q690高强钢并作为主要钢材制造了ZFY18000/28/53D样机,并进行了液压支架型式试验。结果表明,Q890高强钢焊接性能能够满足液压支架使用要求。
Height suppressing effect that Q890 high strength structural steel was applied in hydraulic support was analyzed, still weld- ing performance was also researched, then reasonable preheating temperature before welding and tempering temperature were con- firmed. On the basis these, prototype ZFY18000/28/53D was manufactured with Q890 high strength steel instead of Q690 high strength steel, then hydraulic support style experiment was carried out. The results showed that the welding performance of Q890 high strength steel could meet requirements of hydraulic support designing.
出处
《煤矿开采》
北大核心
2016年第3期46-48,共3页
Coal Mining Technology
基金
国家重点基础研究发展计划(973)资助项目(2014CB046302):深部围岩自适应支护原理及系统创新理论
国家高技术研究发展计划(863计划)基金资助项目(2012AA06A407):两柱式超强力放顶煤液压支架研制
天地科技工艺技术创新基金(KJ-2014-TDKC-06):Q890~Q1100高强度结构钢焊接性能研究
天地科技公司研发项目(KJ-2014-TDKC-03):8m超大采高综采总体配套模式与关键技术可行性研究
关键词
液压支架
高强度结构钢
Q890
hydraulic support
high strength structural steel, Q890
