A finite element model for drawing process of high carbon wire with inner micro-defects was built.
通过对高碳盘条内部缺陷的假设,采用有限元法研究了高碳盘条拉拔过程中,工艺参数对裂纹扩展情况的影响。
Water flooding core experiments have been done based on the cores of major sections, in which there are many carbonaceous belt zones.
针对雷公油田水窜问题,从储层的非均质性、示踪剂解释、注采井网与地应力的适应性、储层伤害等方面进行了研究,并且对大量存在碳质条带的主力层段的岩心进行了水驱岩心实验。
the authors adopted a filling method, the special surfacing technique for wear resistance with tungsten carbide bar, to the tooth of cutter piece, the basic process and characteristics of the method were introduced.
针对绞吸挖泥船绞刀片工作条件及其磨损特点 ,对绞刀片刀齿采用了碳化钨条填充法特种耐磨堆焊工艺 ;介绍碳化钨条填充法基本过程及其特点 ,论述刀齿的堆焊工艺及耐磨堆焊层的成分和主要性能 ;通过耐磨堆焊绞刀片的实船应用及测试结果 ,分析讨论特种耐磨堆焊绞刀片的实船应用效果。
The purpose of this study was to clarify the influence of carbonization conditions and calcium catalysts on gasification reactivity of coal chars.
改变碳化条件和掺加金属催化剂，制备了十几个煤焦样品。
