电杆钢板圈堵头和挡灰筋形式的改进我们在生产分段环形钢筋砼电杆时，钢板圈堵头是采用不能重复使用的木挡圈，挡灰筋是采用８圆盘条。由于挡圈在制作时内外尺寸不好控制．生产出来的电杆，内壁不光滑，壁厚超差，钢板圈内壁的砼端面蜂窝严重。由于８圆盘条与钢板圈之间有... The improvement of the form of the steel plate ring plug and the gray-retaining bar We used the non-reusable wooden retaining ring when producing the segmented circular reinforced bar, and the steel bar was made of 8 discs. Because the retaining ring in the production of internal and external dimensions are not well controlled. Produced pole, the inner wall is not smooth, the wall thickness is very bad, the steel plate ring inside the wall surface of the honeycomb is serious. Since there are 8 discs and steel plate ring...