Results 41 to 50 of about 637,350 (346)
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
doaj +1 more source
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
doaj +1 more source
Coal-shale interface detector [PDF]
, 1980 A coal-shale interface detector for use with coal cutting equipment is described. The detector consists of a reciprocating hammer with an accelerometer to measure the impact of the hammer as it penetrates the ceiling or floor surface of a mine ...
Reid, H., Jr.
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Advanced Engineering Materials, EarlyView.Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior +6 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
doaj +1 more source
Research on Valve Optimization and Control Technology for Water Hammer Protection in Long-Distance Pressurized Water Conveyance Systems [PDF]
E3S Web of ConferencesIn long-distance water transfer projects, changes in operating conditions or accidental power failures can cause changes in the flow regime inside the pipeline, triggering water hammer phenomena.
Hu Yiming, Dong Shen, Lv Mou, Li Hang
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann +4 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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Xenotransplantation: Perspectives and limits [PDF]
, 2001 Xenotransplantation faces the dilemma of an unlimited supply of cells, tissues and organs on the one hand and severe obstacles and limits on the other. One reason for the limitations is that the source animal of choice, the pig, and the human recipient ...
Hammer, Claus
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Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source