[本刊讯 ]我国现有直缝焊管机组近 16 0 0套 ,年生产能力 70 0万 t左右。除极少数机组有从国外引进 (购买 )的内毛刺清除装置外 ,其余均未装备此装置。随着国民经济的迅速发展 ,对焊管质量提出了更高的要求 ,因此 ,直缝焊管内毛刺的清除是迫切需要解决的问题。燕山大学自行研制 [Our News] China’s existing straight seam welded pipe unit nearly 16 0 sets, annual production capacity of 70 0 million t. Except for a very small number of units, which have been imported (purchased) from abroad, they are not equipped with this device. With the rapid development of the national economy, the quality of welded pipe is put forward higher requirements. Therefore, the removal of burrs in the longitudinal welded pipe is an urgent problem to be solved. Yanshan University self-developed