Results 21 to 30 of about 241,686 (283)
Shiyou jixie, 2021 The research on rock breaking mechanism of special-shaped non-planar PDC cutter is relatively scarce, and the research on domestic prismatic PDC cutter is even scarcer.
Wei Xiuyan +5 more
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Analysis of Materials and Modern Technologies for PDC Drill Bit Manufacturing
Успехи физики металлов, 2020 The article presents a review of polycrystalline diamond composite (PDC) drill bit manufacturing technologies and used metals in order to provide surface quality and accuracy as well as to attract a wider range of scientists to find new technologies and ...
L. Ya. Ropyak, T. O. Pryhorovska, K. H. Levchuk
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Determining the angle of inclination of the cutting strip of the feeder of a rotary snow blower [PDF]
Научно-технический вестник Брянского государственного университетаThe article contains the results of theoretical studies of one of the parameters of the geometric image of the feeder cutter of a rotary snow blower — the angle of inclination of the cutting strip of the vertical feeder, relative to the radius of the ...
Aleshkov D.S. +3 more
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Algorithm for calculating the profile of the feeder cutting band rotary snow blower [PDF]
Научно-технический вестник Брянского государственного университетаThe article reflects the calculation schemes for the movement of a snow particle along the surface of the cutting strip and the calculation scheme for determining the angle of inclination of the cutting strip of the feeder of a rotary snow blower.
Aleshkov D.S. +3 more
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Structural Optimization and Experimental Study on A Cutter for Casing Cutting
Shiyou jixie, 2022 With many end-of-life offshore oil and gas wells to be abandoned,new requirements and challenges are put forward for casing cutting tools.Therefore,the structure of a cutter for casing cutting was studied.Based on the actual working conditions of ...
Han Tongfang, Feng Yijing
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STUDY AND DEVELOPMENT OF PROPOSALS FOR IMPROVING THE PROCESS OF MACHINING SCREW SUBMERSIBLE PUMPS
Вестник Дагестанского государственного технического университета: Технические науки, 2016 An analysis of existing technological process of machining screw submersible pump УН1ВС OAO Plant named. «Hajiyev» (Makhachkala). The main drawbacks of the technology of mechanical turning blanks screws technologies of grinding and polishing screw lead ...
J. B. Begov
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Influence of Cutter Head on Cavitation of Non-Jammed Submerged Grinder Pump
Applied Sciences, 2022 For the investigation of the cavitation of non-jammed submersible grinder pumps, a GSP-22 model pump was numerically simulated based on CFX. ICEM-CFD was applied to a structured mesh for the flow components.
Rongsheng Zhu +4 more
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AgricultureAfter existing ultra-deep vertical rotary tillers work in sugarcane stubble fields, the stubble chopping performance is poor, and the reason for this is unknown. To solve this, this paper develops a simulation model of ultra-deep vertical rotary tillage (
Wang Yang +5 more
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Development of cutter for printed circuit board using hydraulic principle [PDF]
, 2007 Cutter was known since long times ago as something that was use to cut the thing into smaller piece. Starting from the usual rock at the rock age till the high technology cutter which was make from the precious and valuable material like diamond at this
Crisan, C. +2 more
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A New Method for the Real-Time Monitoring of PDC Bit Cutter Wear Based on the Drilling Rate Mode
Shiyou jixie, 2020 In order to carry out real-time quantitative monitoring on the wear degree of PDC bit cutter, the drilling rate equation suitable for PDC bit was optimized.
Hao Yalong +5 more
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