API江钻股份8 1/2 HAT637G TCI位油井钻探

1.高精密滑动轴承有两个推力的面孔。 头轴承表面硬面。 锥体

轴承镶嵌有减摩合金镀银。 负载能力和扣押

轴承的阻力大大提高。

2.精密金属面密封。 密封系统的两个动态轴向密封环是金属

密封件和两个高弹性的橡胶增能在头锥分开坐

密封起到静密封领域。 优化的密封压缩，确保接触良好

两个金属密封面之间在任何时候。
3.球锁定锥，适合高转速。
4.所有橡胶补偿器用于它可以限制压力差，防止钻井

流体进入所述的润滑系统，这提供了轴承系统具有良好的

保证润滑。
5.新类型的耐磨润滑脂，可以维持高的温度高达250℃被利用。
6.高耐磨性和插入位的优良切削能力是通过使用硬质合金定

压块具有高强度和高韧性的结合的最优化数

契约和行，紧凑曝光高度和异型坯。 对于钢齿钻头。

齿面是硬面临新的类型的耐磨材料，从而工作寿命

切削结构的延长而高。

API Kingdream 8 1/2 HAT637G TCI bit for oil well drilling

1. High precision journal bearing with two thrust faces. Head bearing surface is hard faced. Cone

bearing is inlaid with friction reducing alloy and silver-plated. The load capacity and seizure

resistance of the bearing is greatly improved.

2. Precise metal face seal. The two dynamic axial sealing rings of the sealing system are metal

seals, and two highly elastic rubber energizers are seated separately in head and cone

sealing areas functioning as static seals. Optimized sealing compression ensures good contact

between the two metal sealing faces at all times.
3. Ball locked cone, suitable for high rotary speed.
4. All-rubber compensator is used which can limit pressure differential and prevent drilling

fluid from entering the lubrication system and this provides the bearing system with good

assurance of lubrication.
5. New type of wear resistant grease that can sustain high temperature up to 250°C is utilized.
6. High wear resistance and excellent cutting ability of the insert bit are given by using carbide

compacts with high strength and high toughness in combination with optimized number of

compacts and rows, compact exposure height and special shaped compacts. For steel tooth bit.

the tooth surface is hard faced with new type of wear resistant material and thus working life

of the cutting structure is extended while high.