查询词典 drill bit

The main products are Hexagon Hollow Steel, Tapered Drill Rod, Integral Drill Rod, Chisel Bit, Cross Bit, X Type Bit, Button Bit, DTH Bit, DHT Hammer, Coupling Sleeves, Shank Adaptor, Furnace Tap Drilling Tools, Drilling Machine etc.. Meanwhile, we also cooperate with other manufactories in China and supply the good quality of products. Of course, we also try our best to introduce overseas rock drilling machinery and tools into China market.

我公司以三占集团这样大型的专业凿岩钎具制造商为后盾，向世界各地销售中国生产的优质凿岩机具，如中空钢、锥型连接钎杆、重型钎、各种钻头、钎尾、高炉开口钎具、风镐、凿岩机等，同时为中国市场引进国外的优质凿岩机具及生产技术。

At present, Beijing Machine Tool Co., Ltd. is a universal tool and cutter grinder major manufacturers in each instrument can produce various specifications of universal grinding machine and related equipmentòmany sets, is also currently producing the largest drill bit grinder grinding to 120mm can be one of the manufacturers.

目前，北平机床有限公司是万能工具及刀具磨床主要的生产厂商，每年可生产各种规格万能工具磨床及相关机具壹万多台套，也是目前生产钻头磨床最大可研磨至120mm的厂商之一。

A core drill bit consists of a steel tube with diamond segments brazed or laser welded on the drilling end.

核心钻头由一钢管或激光焊接金刚石钎环节就完钻。

At the same time ,it analyses the possible interference phenomenon that can be occurred in the course of machining drill bit flute by the grinding wheel cross-sectional profile solved.

同时分析了在用所求得的砂轮截形加工钻头螺旋槽的过程中可能产生的干涉现象。

Rock drillability index is a very key parameter in selection of drill bit type and determination of productivity in petroleum, mining and geology. Unfortunately, there are many limits in the current definition as well as experimental methods.

岩石可钻性指标是石油、矿山及地质部门广泛用于钻头选择和制定生产定额的重要参数，但现行可钻性指标的定义及参数获取的实验方法还存在许多问题。

Items include cutter, silk attack, the drill bit, turning Arbor and Dao, such as BT.

品项包括铣刀，丝攻，钻头，可转位刀杆及BT刀把等。

Specializes in producing all kinds of saw blade milling cutter, milling cutter incision, the overall carbide cutter, cutter blade on three sides, high-speed steel lathe tool, the taper shank end mill, inlay tooth circular saw blades, all kinds of hob, machine blade, reamer drill bit, rubber blade, band saw blade and the kinds of non-standard custom-made knives, cutting tools; in the design and manufacture has accumulated a wealth of experience, enterprise successfully passed the IS09001 total quality management system certification, the company the implementation of total quality management, and strict selection of high-quality materials production, strong technical force, complete detection means, processing equipment, in the tool manufacturer in the first commitment to the promotion of quality services.

晋南工具有限公司专业生产各种锯片铣刀，切口铣刀、整体硬质合金铣刀、三面刃铣刀、高速钢车刀条、锥柄立铣刀、镶齿圆锯片、各种滚刀、机用锯条、铰刀钻头、橡胶刀片、带锯条及定做各种非标刀具、刃具；在设计制造方面积累了丰富的经验，企业顺利地通过了IS09001全面质量管理体系认证，公司实行全面质量管理，严格选用优质材料生产，技术力量雄厚，检测手段齐全，加工设备精良，在工具生产厂家中第一家推广质量承诺服务。

Because of special geometry structure of three-cone bit, the top of formation will form a tri-spine well bottom while drilling with three-cone bit the drill string. It is the tri-spine well bottom that leads to the axial harmonic of vibration when the bit revolves a round and the three concavo-convex heave of bit and formation result in one time (1×rpm),two time (2×rpm), three time (3×rpm) turning table speed.

高岩由于三牙轮钻头的特殊几何结构，钻进过程中在岩层顶部容易形成一个三脊状井底，正是这一三脊状井底，当钻头旋转一周时钻柱轴向三次凸凹变化，由此在轴向产生1倍、2倍和3倍及其更高次倍于转盘转速rpm的谐波振动。

Drill bit shell; warm extrusion punch; contact analysis; equivalent stress

中文关键字：钎头壳体；温挤压凸模；接触分析；等效应力

Are resharpened drill bit inspected and identified prior to use?

再次研磨的钻咀是否在使用前进行检验与确认？

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。