It is a kind of test equipment which conforms to the research field of modern material mechanics and specially research of properties of the fatigue mechanical. The testing machine is mainly used for testing the mechanical properties of tensile and compressive fatigue specimens of metal and non-metallic materials of various sizes and specifications The system can be used for dynamic loading experiments of materials and the dynamic response characteristic of materials under high frequency fatigue loading of high temperature vacuum or atmosphere. The whole machine should be able to work stably in 100Hz, 100kN dynamic loading and amplitude of 0.3mm for a long time. It is composed of main engine, servo actuator, high frequency servo valve, controlle and software, constant pressure servo pump station, high temperature furnace, vacuum system and pipeline system. Standards as follow, GB/T2611-2007 General Technical Requirements for Testing Machine JJG 139-1999 Tension,Pressure and Universal Testing Machine GB/T2282010 Metal Tensile Test GB/T3075-82 Standard Test Method for Axial Fatigue of Metals GB/T2039-80 Test Method for Tensile Creep of Metals GB/T16826-2008 Electro-hydraulic Servo Universal Testing Machine JB/T9397-2002 Technical Condition of Tensile and Compression Fatigue Machine GB/T228.1-2010 and GB4338-2006-T Testing Methods of Metals Model DPL-1015U DPL-1015 DPL-1020 Max static pressure 100kN 100kN 100kN Max oscillation pressure 50kN 50kN 50kN Pressure fluctuation 1%1% 1% Accuracy of pressure 0.05% 0.05% 0.05% Max frequency 50Hz 50Hz 50Hz Max displacement(static) 100mm100mm 100mm Max displacement(dynamic) 0.6mm 0.6mm 0.6mm Accuracy of displacement 0.5µm 0.5µm 0.5µm Head diameter 60mm 85mm 85mm Size of constant temp zone 100x100mm 160x160mm 160x160mm Max temperature 1500 1500 2000 Heating method electromagnetic induction molybdenum wire graphite Control mode of temperature thermocouple thermocouple thermocouple Control accuracy of temp ±1 ±1±1 Cold limit vacuum 10Pa/6x10Pa 10Pa/6x10Pa 10Pa/6x10Pa Pressure rising rate 3.0 Pa/h 3.0 Pa/h 3.0 Pa/h Gas protection nitrogen, argon nitrogen, argon nitrogen, argon Inflation pressure 0.03MPa 0.03MPa 0.03MPa External electrode 2 2 2