Results 41 to 50 of about 105,637 (251)
Aspects regarding FEM simulation of stress in hammer mill working tool [PDF]
E3S Web of Conferences, 2019 Considering the need for development and improvement of biomass processing equipment, researchers bring contribution by making suggestions to design also through simulation and modelling of different stresses that occur on equipment’s working tools.
Moiceanu Georgiana +5 more
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Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers
Advanced Functional Materials, EarlyView.We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang +12 more
wiley +1 more source
Study on diagonal hammer of three kind metals composite casting with block protecting handle
MATEC Web of Conferences, 2016 Hammer crusher is widely used in cement, ceramic, mining and electricityother industries, hammer head is one of important parts in crusher, its abrasion performance directly affects the service life of hammer crusher and economic cost.
Liu Hui +5 more
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Oil & Gas Science and Technology, 2019 Water hammer pressure has been known to cause formation fracture and well-control problems. Accurate prediction of water hammer pressure is crucially important to determine the selection of shut-in methods. In this study, the mathematic model of wellbore
Fu Jianhong +4 more
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Advanced Functional Materials, EarlyView.For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa +3 more
wiley +1 more source
Analysis of a Novel Automatic Control Approach for the Free Forging Hammer
Applied Sciences, 2020 This paper proposes an electro-hydraulic servo control method and realizes the automatic control and remote control of free forging hammers for the first time.
Xiaopeng Yan, Baijin Chen
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Strong Fully Reprocessable Engineered Wood Composites
Advanced Materials, EarlyView.Engineering a hyperbranched adhesive with complementary imine‐bond and hydrogen‐bond networks, combining it with wood particles to fabricate the wood composite (WP/HTP) under mild hot‐pressing conditions. The WP/HTP exhibits 100% mechanical strength recovery after three cycles of reprocessing, and the reprocessed modulus of rupture (MOR) and modulus of
Xilin Zhang +9 more
wiley +1 more source
Dynamic Analysis and Optimization of Mechanical Impactor
Shiyou jixie, 2020 To address the problems of small impact energy, short continuous working time and poor stability in deep wells of the existing impactors, a new type of mechanical impactor is designed.
Liu Yu, Feng Jin, Huang Xinyu, Chen Wei
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Engineering Structures and Technologies, 2015 A comparative spatial analysis of surface hardness of structural concrete is introduced. Main objective of the paper is to make a repeatability comparison of three types of the still most popular non-destructive testing devices for concrete: L-type ...
Adorján Borosnyói
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Impact Characteristics of a Bidirectional Pneumatic DTH Hammer for Unconsolidated Formations
Applied Sciences, 2023 With advantages of high efficiency and low cost, DTH hammer drilling has been highly applied in various drilling projects. When drilling in unconsolidated formations, it is prone to drilling accidents such as drilling tools sticking or burying.
Yuanling Shi, Shuang He, Conghui Li
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