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1)  hot pressing diamond bit
热压金刚石钻头
1.
The paper introduces the technology improvement on medium frequency furnace for traditional hot pressing diamond bit,such as control on starting scan,medium frequency power supply,automatic adjustment for impedance and temperature control on closed-loop.
介绍了对传统的热压金刚石钻头用中频炉的技术改造,包括扫描启动控制、中频电源、阻抗自动调节、闭环温度控制等技术。
2)  diamond drill bit
金刚石钻头
1.
Development and application of diamond drill bits in high altitude mining area;
高海拔矿区用金刚石钻头的研制与应用效果
3)  diamond bits
金刚石钻头
1.
The experiments on several Japanese natural diamond bits;
几种日本天然金刚石钻头的试验
2.
In this paper, the author have introduced the status quo of diamond bits and tools' wide-adaptability, and discussed its research meaning, necessaries as well as the supporting work of needs in future.
介绍了广谱性孕镶金刚石钻头及工具的现状,论述其研究意义、必要性及未来需要的支持性的研究工作。
3.
Particular uses of the method are described in regard to the evaluation of φ60mm wireline diamond bits.
根据TOPSIS法原理,提出一种同时考虑“理想方案”和“负理想方案”的金刚石钻头综合评价灰色关联分析法。
4)  diamond bit
金刚石钻头
1.
The experimental study on the new pattern diamond bit with high drilling speed;
新型高时效金刚石钻头试验研究
2.
Efficient methods applied in skidding strata with diamond bit and its history cases;
金刚石钻头钻进“打滑”地层采用的有效方法与实例
3.
Field test of electroplated diamond bit and analysis of its performance;
电镀金刚石钻头野外试验及效果分析
5)  bit die
金刚石钻头制造压模
6)  diamond oil drill bit
金刚石石油钻头
补充资料:聚晶金刚石钻头


聚晶金刚石钻头
polycrystalline diamond bit

Juling】l叩angshl zuantou聚晶金刚石钻头(polyerystalline diamond bit) 以聚晶金刚石或聚晶金刚石复合片作为切削刃具的钻头。它是20世纪80年代出现的新型钻头。由于聚晶金刚石的耐磨性比硬质合金高一到两个数量级,比天然金刚石的耐磨性还要高,扩大了切削破碎的使用范围,在石油钻井、地质勘探的岩芯钻中得到推广应用,有着十分广阔的前景. 聚晶金刚石是用微米级金刚石粉和硅等加催化剂在高温高压下聚结而成,通常做成2.smm大小的立方体或边长4mm厚2.smm的等边三角形。其耐热上限可达1200℃,有较高的韧性和极高的耐磨性,可作为切削破碎岩石的刃尖, 聚晶金刚石复合片,是在厚3~smm的钨钻硬质合金薄片的基底表面烧结一层厚度为0.5~lmm的聚晶金刚石,这种结构增强了聚晶金刚石的抗冲击能力,又便于焊接,常用的聚晶金刚石复合片可直接焊接在切削面上.复合片直径在12mm以下. (黄士芳)
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