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- Among vacuum brazed diamond tools, diamond bead, diamond core bit and diamond saw blade are patent products in China. 其中钎焊金刚石工具中钎焊串珠、钎焊钻头和钎焊锯片是国家专利产品。
- The lateral imbalance force on a polycrystalline diamond compact(PDC) bit is one of the important causes to lead severe bit whirl, which is associated closely with cutting structure on a bit. 聚晶金刚石(PDC)钻头的侧向不平衡力是造成钻头涡动的主要原因之一,而侧向不平衡力取决于钻头的布齿结构,通过合理的布齿结构设计,可有效地控制侧向不平衡力的大小。
- PDC bit uses polycrystalline diamond compacts (PDC) as cutters. pdc钻头用聚晶金刚石（复合片）作为刀具。
- Run in a diamond core bit. 下金刚石取芯钻头。
- The polycrystalline diamond compact is the compact of a polycrystalline diamond layer and a tungsten carbide substrate. 人造金刚石聚晶复合片是由金刚石层和硬度合金基体组成的一种复合材料。
- It is found that the exact micro-hardness value of polycrystalline diamond compact (PDC) is got with 4.9N by Knoop indenter. 通过对比发现：采用努普压头、4.;9N负荷能较精确的测量出硬度值。
- polycrystalline diamond compact bit PDC钻头
- The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit. 地质学家需要知道钻头已以到达什么样的岩层,因此时常要用芯钻头取样。
- Advances in polycrystalline diamond compact( PDC) bits have sharply increased rate of penetration( ROP),reduced drilling time and costs in oil and gas wells. 聚晶金刚石复合片（PDC）钻头的发展及应用，大大提高了钻井的机械钻速（ROP），减少了钻井时间，降低了钻井成本。
- Geologist so every so often The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit. 地质学家需要知道钻头已经到达什么样的岩层,因此时常要用取芯钻头取样。
- An inclined impact failure method was proposed,by which impact failure test of the polycrystalline layer in polycrystalline diamond compact(PDC) could be realized. 提出了一种倾斜冲击破坏实验方法,能够实现对聚晶金刚石复合片(PDC)聚晶层的冲击破坏试验。
- We can design and sidetrack cut bevel bit,core bit and eccentric bit.We can design and produce apace at the same time according the user's needs. 研究设计各种新型金刚石全面钻进钻头和金刚石取心钻头。
- Use soft matting, wood or similar material as base for making up diamond or Polycrystalline Diamond Compact (PDC) bits. Follow manufacturer's instructions on handling such equipment. 安装金刚石或PDC钻头时，钻头下面要铺上软席，木头或类似的材料。遵守制造商的指令操作此类设备。
- Sintering temperature is too high or too low possibly creates PDC less than burning or incineration, therefore a timely and effective monitoring to the Polycrystalline Diamond Compact is necessary. 烧结温度的过高或过低都可能会造成金刚石复合片过烧或欠烧，因此对金刚石复合片的温度场进行有效实时的监控是必要的。
- Based on certain mechanical quality of the rock, the analysis on the Polycrystalline Diamond Compacts (PDC) bit and the rotary percussive drilling is carried out. 在管棚支护所钻岩石的力学性质基础上,对管棚支护钻孔所采用PDC钻头和回转冲击的钻进方式进行了比较分析。
- What type of core bit is it? 这是什么型号的取芯钻头?
- Raising the stability of outer core barrel is the main approach to extend the life of core bit and to raise core recovery and the footage of single core barrel. The outer core barrel with centralizer is an effective method to raise its stability. 提高外筒稳定性是延长取心钻头寿命、提高岩心收获率及单简进尺的最主要途径,而外筒加扶正器是提高其稳定性的有效方法。
- polycrystalline diamond compact (PDC) 聚晶金刚石复合片
- The effects of diamond grain sizes on wear resistance ratio of the sintering diamond compacts are investigated. 研究了金刚石的粒度对烧结体磨耗比的影响；
