...键词 爆破工程，螺旋切槽，松动爆破，模型试验研究，裂缝起始和扩展 [gap=834]Key words blast engineering，spiral V-notch，loosening blasting，model testing study，initiation and develop- ..
基于18个网页-相关网页
最后，提出了螺旋切槽松动爆破的方法及优点。
发热部是双螺旋切槽，在电流通过时可以减少其横截面积，因而发热部的阻值比冷端部的阻值大。
The hot zone is formed by cutting a double spiral slot which reduces the cross sectional area through which current flows, resulting in higher resistance than the cold end.
螺旋槽成形铣削时普遍存在根切现象，在很大程度上影响到加工精度和几何形状。
Usually, there exist undercutting phenomena in helical groove milling process, which affect the accuracy and geometrical shape greatly.
应用推荐