Results 41 to 50 of about 381,789 (309)
Support apparatus for dynamic testing Patent [PDF]
, 1967 Hydraulic support equipment for full scale dynamic testing of large rocket vehicle under free flight ...
Angele, W., Vonpragenau, G. L.
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Design of machinery-tracked automatic system of hydraulic support
Gong-kuang zidonghua, 2013 In view of problem of low automatic degree of current electrohydraulic control system of hydraulic support, a machinery-tracked automatic system of hydraulic support was designed.
ZHU Jin-yu, LI Guo-lia
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Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
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Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
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Vibration dampener for Niles vertical boring mill ram [PDF]
, 1969 Controlled hydraulic cylinder, which serves as a vibration dampener, is used as a ram support unit.
Young, R. J.
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Gong-kuang zidonghuaIn the hydraulic support work of fully mechanized working face, there are often problems such as insufficient initial support force and slow moving speed of the support.
GUO Xinwei
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Design and stability analysis on three-DOF double parallel hydraulic support
工程科学学报, 2016 Since the column and the top beam of the present four-bar hydraulic support fail to bear the lateral force,the lateral force is transferred to the rod via the shield beam,which often leads to the falling down of the support or damage of the support ...
WANG Cheng-jun +4 more
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Design of automation device for durability test of manual reversing valve of hydraulic support
Gong-kuang zidonghua, 2020 For problems of long test cycle, low efficiency and unable to realize automatic test in durability test of manual reversing valve of hydraulic support, an automation device for durability test of manual reversing valve of hydraulic support was designed ...
ZHAO Rui
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
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Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
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