The machine equipments needed has spiral drill press and drill to expand machine or diving drill press. 所需机械设备有螺旋钻孔机、钻扩机或潜水钻孔机。
Drilling-into-pile techniques by the Short Spiral Drill is introduced through examples, which can be covered in the construction of city roads. 通过实例详细介绍了短螺旋钻机钻孔成桩工艺,在城市道路建设中具有推广价值。
Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe. 整体螺旋加重钻杆是在整体加重钻杆的中间加厚部位延长并铣削螺旋槽。
They have not measured the length of spiral drill collars and monel collars yet. 他们还没测量螺旋钻铤和无磁钻铤的长度。
Spiral bevel gears are usually used to improve the bearing capacity of the angle transmission gears on drill rigs. 在钻机里常采用弧齿圆锥齿轮提高角传动齿轮承载能力。
Spiral drill pipe: Cold-drawn forming a blade, anneal, good toughness, and durability. 螺旋钻杆:冷拉一次成型叶片,不退火,韧性好,耐用。
Technology of Superfluid concrete pouring pile is a new construction technique, which, on the basis of continuous modifying spiral jumper, has utilized modern drill to provide fine machinery performance, developing only from dry operation completed by original jumper to wet one completed by modern drill. 超流态混凝土灌注桩工艺是在我国长螺旋钻机不断改型换代的基础上,利用现代钻机所能提供的良好机械性能,将一般长螺旋钻机只能进行干作业拓展到进行湿作业的施工新技术。
Analytical Calculations of Backing-off Angle of Involute Spiral Surface Twist Drill 渐开螺旋面麻花钻后角的分析计算
Failure Analysis and Improvements of Spiral Nut of Pneumatic Rock Drill 气动凿岩机螺旋母失效分析及改进
A New Method of Grinding the Spiral Surface Drill Point 螺旋面钻尖刃磨的新方法
A discussion on increasing the service life of spiral bevel gears on drill rigs 提高钻机弧齿圆锥齿轮工作寿命因素探讨
The Character of the Spiral Configuration of the Twist Drill 麻花钻螺旋结构的性质
Thn Design of the NC Grinder for the Spiral Flute of the Twist Drill 数控麻花钻磨槽机的设计
Mathematical Model for Variable Pitch Spiral Drill Point and Grinding Interference 变螺距螺旋面钻尖的数学模型及其刃磨干涉
The Constructional Techniques and Equipment of Underwater Pile-making with Long Spiral Drill 长螺旋钻水下成桩工艺及设备
In addition, by changing the structure design parameters of diamond drill bit simulate drill bit during drilling force to analyze the situation, comparative study of the drill core thickness, helix angle, spiral groove length on the stiffness strength of diamond drill bit. 此外通过改变金刚石钻头结构设计参数,模拟钻削过程中钻头受力情况进行分析,对比研究了钻芯厚度、螺旋角度、螺旋槽长度对金刚石钻头刚度强度的影响。