Results 11 to 20 of about 38,900 (302)

Research progress and prospect of high pressure water jet coal breaking mechanism

open access: yesMeikuang Anquan, 2022
The research on coal breaking mechanism by high-pressure water jet can provide theoretical basis for water jet equipment manufacturing and construction technology research.
ZHAO Yueran   +5 more
doaj   +2 more sources

Drilling Performance of Rock Drill by High-Pressure Water Jet under Different Configuration Modes [PDF]

open access: yesShock and Vibration, 2017
In the rock drilling progress, the resistant force results in tools failure and the low drilling efficiency; thus, it is necessary to reduce the tools failure and enhance the drilling efficiency.
Songyong Liu   +2 more
doaj   +2 more sources

Exploration on Application of High Pressure Water Jet Cleaning Technology [PDF]

open access: yesMATEC Web of Conferences, 2021
at present, the three-dimensional cleaning machine involved in tank car cleaning technology in China has full-automatic function, which includes two main structures: three-dimensional positioning machine and high-pressure cleaning machine.
Xu Xinjian, Meng Zhaoxing, Lv Haiqiang
doaj   +1 more source

Degradation modes and tool wear mechanisms in finish and rough machining of Ti17 Titanium alloy under high-pressure water jet assistance [PDF]

open access: yes, 2013
This article presents the results of an experimental study on the Ti17 titanium alloy, which was carried out to analyze tool wear and the degradation mechanisms of an uncoated tungsten carbide tool insert. Two machining conditions, roughing and finishing,
GERMAIN, Guénaël   +3 more
core   +1 more source

Management of high pressure water jet oropharyngeal injury

open access: yesOtolaryngology Case Reports, 2018
High-pressure water jets are used widely across various industries, and work-related injuries to the extremities commonly occur. However, high-pressure water injuries to the oropharynx are uncommon and can result in significant injury and aerodigestive ...
Justin C. Morse   +3 more
doaj   +1 more source

Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes

open access: yesGeofluids, 2020
The impinging pressure of a water jet is a key factor in engineering applications, and the jet shape has a great influence on this pressure. In this paper, five different nozzle shapes were designed, and impacting tests were conducted based on a self ...
Fei Huang   +3 more
doaj   +1 more source

Study on the Influence of Bottom Hole Confining Pressure on High-Pressure Jetting Techniques

open access: yesShiyou jixie, 2021
As the development of oil and gas resources continues to deepen, the impact of bottom hole confining pressure on high-pressure water jetting has become more and more prominent. To compare the rock-breaking performance of high-pressure water jet under the
Li Jingbin   +5 more
doaj  

Experimental study on jet flow characteristics of fire water monitor

open access: yesThe Journal of Engineering, 2018
Fire water monitor is an important part of a sprinkler system. In this study, the jet flow characteristics of the external jet of the fire water monitor are studied. The water jet system is used to launch the water jet experiment under six pressures.
Xiumei Liu   +3 more
doaj   +1 more source

Formation Principle and Characteristics of Self-Supercharging Pulsed Water Jet

open access: yesChinese Journal of Mechanical Engineering, 2022
High-pressure pulsed water jet technology has considerable development potential in the field of rock fragmentation. To overcome the shortcomings of existing pulsed jets, a self-supercharging pulsed water jet (SSPWJ) generation method is proposed, which ...
Zhaolong Ge   +6 more
doaj   +1 more source

Field Study on the Waterstop of the Rodin Jet Pile Method in a Water-Rich Sandy Gravel Stratum

open access: yesApplied Sciences, 2019
Due to the increasing depths of underground urban construction, the surrounding environment and hydrogeological conditions are becoming increasingly complex, and conventional high-pressure rotary jet grouting has become unable to meet construction needs.
Chengli Guan, Yuyou Yang
doaj   +1 more source

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