Use for the shaft of a hollow drill with a diamond core bit

• 1. 用于套筒出浆孔管道钻芯成孔的超长小直径空心圆柱形钻头 [P] . 中国专利： CN209491368U . 2019.10.15
• 2. 用于取芯钻头的钻环以及用于制造钻环的方法 [P] . 中国专利： CN107107220A . 2017-08-29
• 3. Core drill bit having a helical tube-shaped drill shaft and a method of manufacturing a helical tube-shaped drill shaft for a core drill bit [P] . 日本专利： JP2020503181A . 2020-01-30

  机译： 具有螺旋管状钻头的岩心钻头和制造用于岩心钻头的螺旋管状钻头的方法

• 4. Core drill bit with spiral tubular drill shaft and method of manufacturing spiral tubular drill shaft for core drill bit [P] . 日本专利： JP2020514584A . 2020.05.21
• 5. Core Bit Having a Spiral-Tube-Shaped Drill Shaft, and Method for Producing a Spiral-Tube-Shaped Drill Shaft for a Core Bit [P] . US2021129234A1 . 2021-05-06

  机译： 具有螺旋管形钻轴的芯钻头，以及用于芯钻头的螺旋管形钻头的方法

• 1. Estimating rock properties using sound signal dominant frequencies during diamond core drilling operations [J] . Ch.Vijaya Kumar, Harsha Vardhan, Ch.S.N.Murthy, 岩石力学与岩土工程学报（英文版） . 2019,第004期
• 2. Advanced "Dagang" Screw Drill and Man-made Diamond Bit [J] . Wu Zhenya 中国油气（英文版） . 1995,第002期
• 3. Stability and nonlinear dynamic behavior of drilling shaft system in copper stave deep hole drilling [J] . KONG Ling-fei, LI Yan, L(U) Yan-jun, 中南大学学报（英文版） . 2009,第003期
• 4. Significant damages of core diamond bits in the process of rocks drilling [J] . Flegner Patrik, Kacur Jan, Durdan Milan, Engineering failure analysis . 2016,第Null期
• 5. Drilling products provider receives exploration award for diamond coring bits [J] . Creamer Media's Mining Weekly . 2012,第10期
• 6. Investigations on the Wear Rate of Sintering Diamond Core Bit during the Hole Drilling Process of Al2O3 Bulletproof Ceramics [J] . Lei Zheng, Chen Zhang, Xianglong Dong, Advances in materials science and engineering . 2018,第3期
• 7. Assessment of wear of diamond core drilling bits [C] . Víťazoslav Krúpa, Edita Lazarová, Lucia Ivaničová, International Carpathian Control Conference . 2016
• 8. Development of New Techniques for Impregnated Diamond Coring Bit Wear Measurement in Conventional Rotary Drilling and Vibration Assisted Rotary Drilling. [D] . Zhang, Wei. 2010
• 9. Effect of Boron-Doped Diamond Interlayer on Cutting Performance of Diamond Coated Micro Drills for Graphite Machining [O] . Xuelin Lei, Liang Wang, Bin Shen, 2013
• 10. Chinese scientific drilling №1 well diamonds coring bit technology [O] . Zhang Xiaoxi, Yang Kaihua, Zhang Hui 2010

• 1. The Principle of the Drilling by Impregnated Diamond Bits and the Classification of Rocks [J] . Tu HouzeChina University of Geosciences Wuhan 430074 . 地球科学学刊：英文版 . 1991,第1期
• 2. Stability and nonlinear dynamic behavior of drilling shaft system in copper stave deep hole drilling [J] . 孔令飞 ,李言 ,吕延军 . 中南大学学报 . 2009,第003期
• 3. 钻芯对混凝土轴压柱性能影响的试验研究 [C] . 朱雷 ,许清风 ,朱春明 . 2011既有建筑综合改造关键技术研究与示范项目交流会 . 2011
• 4. 钻芯对钢筋混凝土轴压柱受力性能影响的有限元分析 [A] . 李亚楠 . 2019