As a traditional hot cutting method,flame cutting is widely used in metallurgical industry because of its low cutting cost and large cutting thickness,in the current flame cutting method of con-tinuous casting slab,the cutting parameters of the CNC fire cutting machine are not automatically ad-justed in real time according to the working conditions,resulting in quality problems such as slag on the cutting surface,which seriously affects the life of the production equipment and the finished mate-rial rate.The intelligent dynamic flame cutting system for slab is developed from the flame cutting mechanism,taking the flame cutting process of continuous casting slab as the research object.Through the system's real-time detection of slab upper surface temperature and slab preheating point location,combined with the production process parameters,a reasonable cutting plan under different working conditions is formulated to achieve fine dynamic adjustment of the flame cutting process and ensure the quality of slab flame cutting.The field test shows that the intelligent dynamic flame cutting method of slab is effective,the generation of slag on the upper edge of slab cutting surface is signifi-cantly improved,and the probability of surface warping defects on the finished medium-thick plate af-ter rolling is gradually reduced from 1.6％to less than 0.3％.
continuous casting slabflame cuttingdynamic adjustmentslagautomatic control
NETL
NSTL
万方数据
维普
