摘要
印尼公主港3×350MW电厂由3个机组组成,主厂房钢结构全部采用高强螺栓连接,高强螺栓数量达50万套,因此制作精度要求较高。为了保证构件的制作精度,在制作前对作业人员进行认真详细的技术交底,在制作过程中对构件的几何尺寸进行严格控制,对制孔等关键工序采用数控钻孔、套模钻孔等先进制孔工艺。并对构件进行整体预拼装,检验制孔的精度;在作业过程中严格执行制作工艺流程,控制每一道工序的制作质量,层层把关,严格执行自检、互检和专检制度。经过以上控制措施,构件整体预拼装质量满足设计要求,效果良好。
The 3×350 MW coal-fired power plant in Harbor Princess of Indonesia consists of three units, in which steel structures of the main building are connected by nearly 500 000 sets of high!strength bolts. So higher accuracy is required during fabrication. It is given a detailed technical explanation of drilling process to the operators before producing in order to guarantee precision of the structural members, such as strict dimension control, numerical control of drilling and cover die drilling. Also all components have been pre-assembled for checking accuracy of the drilling hole. During fabrication, we implemented strict rules of production process are implemented and each working procedure is controlled by self-inspection, exchange inspection and special inspection. With above controls, the whole quality of pre-assembly can meet the requirements of contract and design, by which a good effect is obtained.
出处
《钢结构》
2010年第6期52-55,共4页
Steel Construction
关键词
电厂
钢结构
制造
精度
控制
power plant
steel structure
fabrication
precision
control
