Results 1 to 10 of about 51,052 (215)

Experimental study on the sand discharge characteristics of a swirling sand dredging device in a reservoir area with multiple mud and sand rivers [PDF]

open access: yesScientific Reports
Reservoir sedimentation is a globalized challenge. Existing methods for reservoir desilting have certain limitations and often fail to meet the requirements for sand discharge fully.
ZheHui Wang   +5 more
doaj   +2 more sources

Study on Water Sinking Sand Method for Sand Backfilling [PDF]

open access: yesE3S Web of Conferences, 2023
Based on the partial culvert backfilling project of the JI-HEI Expressway construction in Heilongjiang Province, China, this study investigates the impact of the physical and mechanical characteristics of backfill sand on the compaction degree of sand ...
Wang Shijie   +4 more
doaj   +1 more source

Application of Non-Silica Sands for High Quality Castings [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
The goal of this article is to application of non-silica sands based on alumininosilicates as an alternative of traditionally used chromite sand for alloyed steel and iron castings.
J. Beňo, M. Poręba, T. Bajer
doaj   +1 more source

Analysis of Machine-made Sand Parameters in Shaanxi [PDF]

open access: yesE3S Web of Conferences, 2021
Machine-made sand was significantly different from natural sand in terms of particle gradation, morphology, composition and structure. The concrete composed of mechanical sand and natural sand was greatly influenced by the physical and chemical ...
Chen Zhangjun   +4 more
doaj   +1 more source

Effects of Lumajang sand-bentonite mix on Al-Si casting mechanical properties

open access: yesJEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2023
The use of sand for metal molds is often found in various places; this research will focus on the type of sand used, namely sand from Lumajang Regency, which is known to be strong for concrete mixes or the like. So the purpose of this research is to find
Edi Widodo   +3 more
doaj   +1 more source

SAND EROSION BEHAVIOUR OF TRANSPARENT PVC THIN FILM COATINGS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2015
Sand erosion cause severe damage of headlights, paints and many surface components of the vehicles. In this study, sand erosion testing of the headlight protections was investigated.
M. M. Mahmoud
doaj   +1 more source

Development of a new instrument for measurement of high temperature mechanical properties of resin-bonded sand [PDF]

open access: yesChina Foundry, 2017
The mechanical properties of resin-bonded sand mixtures at high temperatures significantly affect the quality of casting. However, the existing instruments for high-temperature performances testing mainly focus on inorganic binder-bonded sands no matter ...
Peng Wan, Yuan-cai Li, Hong-jiang Ling
doaj   +1 more source

Rancang Bangun Mesin Pengayak Pasir Sistem Rotary Dengan Tiga Grade Hasil Ayakan

open access: yesQuantum Teknika, 2023
Sand is the main ingredient in the construction process, so based on its function, size separation is needed. This size separation is done by sifting sand.
Agus Wijianto, Wahyu Wardana
doaj   +1 more source

Non-standard tests for process control in chemically bonded sands [PDF]

open access: yesChina Foundry, 2016
Chemically bonded sand cores and molds are more commonly referred to as precision sand systems in the high production automotive powertrain sector. Their behavior in contact with molten metal can lead to casting defects.
S. Ramrattan
doaj   +3 more sources

An Investigation into Current Sand Control Testing Practices for Steam Assisted Gravity Drainage Production Wells

open access: yesEng, 2021
Sand control screens (SCD) have been widely installed in wells producing bitumen from unconsolidated formations. The screens are typically designed using general rules-of-thumb.
Omar Kotb   +2 more
doaj   +1 more source

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