Metallic materials. Tube ring hydraulic pressure test

2017 ◽  
Keyword(s):  
Hydraulic Pressure ◽  
Metallic Materials ◽  
Pressure Test

scholarly journals Efficiency improvement of technical condition assessment of plunger pairs of diesel fuel equipment

2020 ◽  
Vol 329 ◽  
pp. 01018
Author(s):  
Anatolii Eremeev ◽  
Aleksandr Morozov ◽  
Dmitry Kotkov
Keyword(s):  
Diesel Fuel ◽  
Evaluation Process ◽  
Condition Assessment ◽  
Technical Condition ◽  
Test Time ◽  
Hydraulic Pressure ◽  
Efficiency Improvement ◽  
Pressure Test ◽  
Time Record

Usage of an upgraded device for assessing technical condition of plunger pairs makes it possible to increase assessment accuracy and reduce the number of erroneously rejected plunger pairs. The action of this device is based on introduction of automatic hydraulic pressure test time record into the evaluation process.

Research on Preparing Recycling Boards by Using Non-Metallic Materials of Obsolete Printed Circuit Boards

2013 ◽  
Vol 743 ◽  
pp. 199-202
Author(s):  
Yan Chao Zhang ◽  
Bo Liu ◽  
Wei Jing Gao ◽  
Jia Hui Zhu ◽  
Wu Biao Duan ◽  
...  
Keyword(s):  
Working Conditions ◽  
Noble Metals ◽  
Printed Circuit Boards ◽  
Hydraulic Pressure ◽  
Metallic Materials ◽  
Circuit Boards ◽  
Optimum Conditions ◽  
Printed Circuit ◽  
Pressing Time ◽  
The Press

The printed circuit boards (PCBs) are the basis of all electrical and electronic equipment (EEE) and thus are one of the most important branches of WEEE stream. Present researches mainly concentrate on the processes of reusing noble metals and copper, and a great deal of nonmetals in PCBs are disposed by combustion or filling, which may cause secondary pollution and resource-wasting. So in this paper, we study how nonmetals are used to produce recycling boards through adding different adhesives, and obtain the best formulation and working conditions. The best formulation is that the binder is Polypropylene (less than 20%), additive are methenamine (little) and stearic acid (little). Effects of working conditions on the molding results are investigated. The results show that the optimum conditions for hydraulic pressure machine are the temperatures of 160 °C, warming and pressing time of 10 minutes and the press of 30MPa.

Structure Analysis and Improvement of Mining Explosion-Proof Control Switch Case Based on ANSYS

2010 ◽  
Vol 43 ◽  
pp. 463-466
Author(s):  
Fei Chen ◽  
Zhi Hao Shao ◽  
Jian Ming Li
Keyword(s):  
Scientific Information ◽  
Element Model ◽  
Hydraulic Pressure ◽  
Ansys Software ◽  
Nonlinear Method ◽  
Design And Optimization ◽  
Pressure Test ◽  
Control Switch ◽  
The Finite Element Model ◽  
Case Based

In this paper, the finite element model of the mining explosion-proof control switch case was established by ANSYS software. The case was analyzed by the nonlinear method, the weak area was found. Then, the correctness of the model was validated by hydraulic pressure test. Finally, a reasonable improved scheme of the case's structure was obtained. This thesis provides scientific information for design and optimization of the mining explosion-proof control switch case.

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