【摘要】 针对塔式起重机标准节主弦杆因材料批次不同焊接后尺寸不同的问题,提出对塔式起重机标准节主弦杆焊胎的改进方法。采用标准节主弦杆焊胎可调措施,保证焊后尺寸。实际应用表明,这种装置对保证主弦杆尺寸,提高其互换性,生产效率有重要意义。更多还原

【Abstract】 To solve the problem of the variety of the main rod’s size after welding to adjustable tower crane standard section, because of the difference of the material batch,a novel approach is proposed.A adjustable weld jig is suggested to assure the size.Fact application shows that this equipment can gain the improvement of the size and raise the productivity and inter- changeableness.更多还原