电杆生产使用的端头板,穿筋孔极易压毛、压陷和损坏。尤其是采用高强钢筋,破损更为严重。为了解决这一问题,我厂在端头板穿筋孔部位镶嵌了硬金属镶套。经实践证明:镶嵌硬金属的端头板在反复使用500次,长达9个月后,其穿筋孔仍端面平整、完好无损;原来的端头板反复使用200 The end plate used in the production of electric poles can be easily squished, indented and damaged through the ribs. In particular, the use of high-strength steel bars is even more damaging. In order to solve this problem, our factory has inlaid hard metal inserts on the ribs in the end plate. It has been proved by practice that the end plate of a hard metal is repeatedly used 500 times for up to 9 months, and the puncture hole is still flat and intact; the original end plate is repeatedly used 200