为适应小口径金刚石钻进高转速的需要,我们在参阅有关资料的基础上,结合本单位具体情况,制造了芯转式水接头,经多年使用,效果较好。过去使用的水接头都是外壳体随同机上钻杆一起进行转动的,由于小口径 In order to meet the needs of high-speed drilling of small-caliber diamonds, we have made reference to relevant information and combined with the specific conditions of our unit to manufacture core-turn water fittings. After years of use, the effect is better. In the past, the water joints used were the outer casing to be rotated together with the drill pipe on the machine. Due to the small diameter