PWS电液伺服疲劳试验机

一、概述：

电液伺服疲劳试验机<简称试验机>主要用于测试金属、非金属及复合材料在室温（或高低温、腐蚀环境）下的动态特性，试验机可进行如下试验：

■拉伸、压缩试验

■裂纹扩展试验

由电气控制器、伺服阀、负荷传感器、位移传感器、引伸计与计算机共同组成的闭环伺服控制系统，可自动精确地控制试验过程，并自动测量试验力、位移、变形、扭矩、角度等试验参数。

试验机可实现能实现正弦波、三角波、方波、锯齿波、反锯齿波，脉冲波等波形，可进行拉伸、压缩、弯曲、低周和高周疲劳等力学试验。也可配置环境试验装置，完成不同温度下的环境模拟试验。

试验机操作灵活方便,移动横梁升降、锁紧、试样夹持均由按钮操作完成,采用先进的液压伺服驱动技术加载、高精度动态负荷传感器和高分辨率磁致伸缩位移传感器测量试件力值和位移。全数字化的测控系统实现力、变形、位移PID控制，各控制之间可平滑转换。，试验软件在WINDOWS XP/Win7中文环境下工作，强大的数据处理功能，试验条件和试验结果自动存盘，显示和打印。试验过程全部纳入计算机控制，试验机是科研院所、冶金建筑、国防军工、大专院校、机械制造、交通运输等行业理想的高性价比的试验系统。

I. Overview:

Electro-hydraulic servo fatigue testing machine is mainly used to test the dynamic characteristics of metal, non-metal and composite materials at room temperature (or high and low temperature, corrosive environment). The testing machine can perform the following tests:

■Tensile and compression test

■Crack growth test

The closed-loop servo control system composed of electric controller, servo valve, load sensor, displacement sensor, extensometer and computer can automatically and accurately control the test process, and automatically measure test parameters such as test force, displacement, deformation, torque, angle, etc. .

The testing machine can realize sine wave, triangle wave, square wave, sawtooth wave, anti-sawtooth wave, pulse wave and other waveforms, and can perform mechanical tests such as tension, compression, bending, low cycle and high cycle fatigue. It can also be equipped with an environmental test device to complete environmental simulation tests at different temperatures.

The testing machine is flexible and convenient to operate. The lifting, locking, and sample clamping of the moving beam are all completed by button operations. It uses advanced hydraulic servo drive technology to load, high-precision dynamic load sensors and high-resolution magnetostrictive displacement sensors to measure the force of the specimen. Value and displacement. The fully digital measurement and control system realizes PID control of force, deformation, and displacement, and smooth transition between each control. , The test software works in the WINDOWS XP/Win7 Chinese environment, with powerful data processing functions, test conditions and test results are automatically saved, displayed and printed. The test process is fully integrated into computer control. The test machine is an ideal cost-effective test system for scientific research institutes, metallurgical construction, national defense and military industry, colleges, machinery manufacturing, transportation and other industries.

二、相关标准：

GB/T 2611-2007 《试验机通用技术要求》

GB/T16825.1-2008 《静力单轴试验机的检验第1部分：拉力和（或）压力试验机测力系统的检验与校准》

GB/T 16826-2008《电液伺服万能试验机》

JB/T 8612-1997《电液伺服万能试验机》

JB9397-2002《拉压疲劳试验机技术条件》

GB/T 3075-2008《金属轴向疲劳试验方法》

GB/T15248-2008《金属材料轴向等幅低循环疲劳试验方法》

GB/T21143-2007《金属材料准静态断裂韧度的统一试验方法》

HG／T 2067-1991 橡胶疲劳试验机技术条件

ASTM E399－09 金属材料线弹性平面应变断裂韧度Kic标准试验

ASTM E1820 2001 断裂韧性的一种量度JIC的试验标准

三、本试试验设备的主要组成：

1、高刚度双立柱门式主加载框架；

2、智能恒压静音动力源；

3、全数字动静态控制系统；

4、中英文人机对话下位机操作应用软件；

5、研华工业计算机及机关打印机；

6、试验相关常规辅具

四、主要指标：

4. Main indicators: