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       HydrHydrHydraulics PneumaticHydraulics Pneumatics & Seals,by General Administration of Press and Publication , is a bimonthly magazine organized by China Hydraulics Pneumatics & Seals Association. It mainly focus on engineering technician and management personnel from the enterprises 、research institutes 、universities and colleges .Hydraulics Pneumatics & Seals is published both at home and abroad, and it has already been the 125 issue since its founding from 1981.

Content of 2020-01

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                   100823, P.R. China

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Overview & Comment

Technology Review of PTC ASIA 2019 . .........China Hydraulics Pneumatics & Seals Association(1)

 

Design & Research

Flow Field Analysis of WEDM Machine Tool Pipeline Based on Fluent. ...............CAO Jin-cao(12)

The Relationship between Bypass Leakage and Minimum Stable Angular Speed of Swing Vane Motor ...................................ZHANG Yuan-shen, SU Guang-yu, WANG Xu-long,et al(16)

Research on Safety Design of a Hydraulic Movable Oil Source Vehicle ......................YU Jun-sheng, HE Liu-yu, WANG Pin,et al(21)

Effect of Plunger Pair Micro Surface on Clearance Oil Film Pressure ...................ZHANG Pei-zhen, JI Hong, YUAN Qiang,et al(25)

Finite Element Simulation Analysis of Valve Disk for 3000HP Drilling Pump .......................ZHANG Hong-sheng, WU Wen-kai(29)

Negative Flow Valve and Variable Power Valve Integrated Design and Application ...............XIONG Wen-cai, MIAO Lei, CHEN Jing-yue,et al(31)

Simulation Analysis of Dynamic Characteristics and Flow Field Characteristics of Electro-hydraulic Directional Valve for Hydraulic Support ............................................................ZHU Jian(36)

System & Application

Design of the Continuous Greasing Device of Cylinder Barrel .................................CHENG Yan, DU Qiang, JIANG Meng(39)

Reserach on Remanufacturing Process of Construction Machinrey Hydraulic Value ..........................................................ZENG Yi-shan, HAO Yun-feng, MIN Yu-chun,et al(41)

Study on Stability Control of Position Servo System with Multi-DOF Pneumatic Manipulator ............................GAO Hong-ying, LIN Xi, FAN Ai-zhen(45)

Tightening Torque Calculation of Hydraulic Hinge Fittings Based on FEA ......................ZHANG Hong-yu, ZHANG Ping, ZHANG Tao-hua,et al(50)

Research on the Application of "Hydraulic and Pneumatic Technology" Boutique Resource Library Based on MOOC in the Course Teaching .........................WANG Wei-ying, LU Xin(53)

Design of Practical Pneumatic Rotary Clamping Table. ................................ WANG Zhan-hui(56)

Operation & Maintenance

Fault Analysis and Improvement of Bucket-wheel Reclaimer Hydraulic Control System ..................................BAO Geng-wang(58)

 

Focused on Seals Technique

Serialization Research of the New Fine Line Sealing Structure ....................... LI Peng-fei, XIA Zhi-hai, TIAN Hao-ling(60)

Brief Talk about the Influence of "Flushing" on Seal. ..........................................YU Ping-chao(63)

Interpretation of Sealing Terminology ............... LIANG Xiao-feng, HUANG Le, YAN Zhi-xu(65)

Hydraulic Water Reciprocating Seal Simulation Problems ........... YIN Tu-yuan, WEI Da-sheng(69)

Design Improvement of Cylinder Rod Seal for External Leakage ............... LI Rui-sheng, JIANG Tuo, HUANG Zhong-zheng,et al(75)

Research and Application of Hydraulic Cylinder Dust-proof Ring for Large Mining Machinery ...........................................TANG Shan, FAN Yao-hua, HUANG Zhen-hua,et al(78)

Development of a New Quick-opening Sealing Structure with Sheer Steel Ball ...... ZHU Jin-hua, DAI Xing-wang, WEI Shu-tao,et al(81)

Multi-parameter Coupling Optimization of O-ring Seal for Electro-hydraulic Steering Gear Based on Finite Element Method ................................XIONG Li, ZHANG Zhi-bin, LIU Yin-shui,et al(84)

Improvement of Oil-seal for Nitrogen Cylinder ................................... LUO Xiang-wen,et al(87)