WAW microcomputer controlled electro-hydraulic servo Universal Testing Machine

☆.Applications: The machine can be used for tensile, compression, bend, shear, peeling, tearing, circulation, and creep test of metal, non-metal material and components. It is in keeping with the international standards of metal’s tensile and compression test in room temperature.

☆.configuration：
1.computer system  The machines adopts DELL computer with 512M RAM memory, 80G hard disk, 17 inch flat monitor, Dell company provides three year free services, its quality is reliable, and we will upgrade computer system according to customer’s need.
2. hydraulic system  actuator adopts American MOOG servalve (DDV) series，its response precision and speed is top-ranking; hydraulic clamp equipment is external, so it has the advantage of little impact to main part’s rigidity, easy of maintenance, adjustable clamping force.
3.load system  The load and clamp system of the testing machine are improved based on WE series testing machine, the WE series testing machine has one third market share in China, which can prove its stability reliability. The space between master cylinder and piston adopts slit seal, so it has minimal internal friction in system, this will ensure the precision of measuring force.
4. electric system  electrical elements which possibly contact with person body are supplied with 24V power source, it has not dangerous to operator; electrical elements are brand name products so as to lower fault rate; electronic hydraulic elements are supplied with 24V direct power source, which will thoroughly prevent burning out coil.
5．Control system  Self made PA－201 card （PCI） integrates multiplex D/A converters and amplifiers. Amplifiers are all digital elements, none analog device, which ensure circuit’s stability. Control software is programmed with DELPHI language, so it has the advantage of high operating efficiency and high expandability; The software is matured by ten year’s constant revision, there is original control algorithm in the software, and the software has the advantage of stability, easy of use, easy of expandability, intelligence. The software provides three storage means to store testing data: ASCII mode, local database, net database, and it is easy networking.

☆. Characteristic:

1.The testing machine adopts the control mode centered on testing program, test procedure can be automatically operated by the computer system;
2.The testing machine has constant stress、constant deformation、constant displacement three control modes, users can customize their testing program by the above control modes according to their need, the testing program can contain twenty testing steps at the most;
3.The testing machine adopts modular design method, so has the advantage of concise structure, good compatibility and stability;
4.The testing machine has the resolution of 1/120000, it has the function of AZS and automatic shift, it is easy to scale testing machine, the all operation to testing machine can be accomplished by keyboard and mouse;
5.The data processing method for testing data is matured by constant revision, the testing machine system also has the advantage of nearly infinite data storage power 、user freely customizing testing report content, intelligently judging testing result and so on;
6.The testing machine obligates the interface with local database and networking database, the machine can be easily networked with internet by the interface protocol users providing;
7.The testing standards of metal’s tensile and compression test in room temperature has been set in software. If user want to use other testing standards to do test, we can set special testing standards for you freely.
☆.technical parameter
1.Load measuring range：2％－100％FS，equal to 4 shifts, we can expand measuring range to 0.4％－100％FS according to customer's requirement, which is equal to 6shifts；
2.Load measuring precision：1rank. we can improve the measuring precision to 0.5 rank according to customer's requirement；
3.Deformation measuring range and precision：1％－100％FS，precision rank: 0.5 rank；

4.Displacement resolution:0.01mm；
5.the adjustable range of constant displacement：0.5－50mm/min；

6.deformation measurement: extensometer gauge length：25、50、100（mm）measuring range：2-25（mm）；
7.the maximum permissible value for deformation measuring precision：±0.5%FS；
8.testing force constant speed control：（1-100%）FS/min control range：（2-100%）FS；

9.deformation constant speed control：（1-100%）FS/min control range：（2-100%）FS；
10.testing speed control precision：±2% set value。

☆.printing content：testing results：E; σр; σs; σsl; σsv; σb; Fb; ψ; δ and so on. The computer can draw many kinds of curves：force－deformation curve, stress－strain curve, force－displacement curve, deformation－time curve, force－time curve, displacement－time curve and so on.