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    Universal Testing Machines

    • Supply TypeManufacturer, Exporter, Supplier, Retailer
    • Preferred Buyer Location All over the world

    In today's days of automation, existing mechanical dial type Universal Testing Machines are getting obsolete. More ever it takes plenty of time for testing. Plotting of graph required test in....
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    In today's days of automation, existing mechanical dial type Universal Testing Machines are getting obsolete. More ever it takes plenty of time for testing. Plotting of graph required test in different units is still difficult. Evaluation of important Parameters like proof stress. Young's modulus is very tedious and time consuming.
    Up gradation package :
    • Microprocessor based control Unit
    • For hydraulic Machines preseure cell is used
    • For Screw drivern machines load cell used
    • Cross head displacement measured by rotary encoder
    • For Screw driven machine DC/AC servo drives are used
    Measuring system with eletronic Control panel :
    MCS-MP is a state of the art micro processor based unit specially designed for Universal Testing Machines with digital display of Load and Displacement / Extension.

     

    Control Panel Features :
    • Sealed rnembrane keyboard with numeric keypad
    • Data entry for specimen dimensions & job serial number
    • Digital Tare tor Load and Reset for Disp./ Extension
    • Load vs Disp. graph directly obtained on dot matrix printer
    • Autoscaling of graph plotting at the end of test
    • Selection of Stop/Return of cross head and direction
    • Results include Peak Load. Max. Disp. UTS, % Elong
    Advantages of Electronic Systems :
    • Machine becomes compulorized with digital indication of load
    • Reasults available in required SI units along with graph
    • Highly accurate, no manual intervention, error free working
    • Direct values of UTS. yield stress & 0.2% proof stress available
    Software Features :
    • System is independent of the type of computer used
    • User friendly windows software for complete test control
    • Real Time Graph with online display of load, Disp / Exin.
    • Wide range of input / output data selection
    • Unit interchangeable for input and result as per standard
    • Exterksive graphics, curve lilting, Zooming
    • Results include Peak Load, UTS. Max Disp. % Elong
    • Area under the curve, % red, in Area, Yield & Proof stress
    • Multi grapha Load vs Disp, Stress vs Strain, load vs %Elong

    Evaluating Proof Stress : Electronic Extensorneter :

    MCE 2 is a strain gauge type, extensometer to measure material extension with a resolution of 1 micron. It is designed to be clamped directly on specimen. This is used to measure strain up to elastic limit to determine important parameters like 1% to 1% proof stress and Young's modulus, MCE 2 has two fixed gauge lengths of 25mm and 50 mm. Change of gauge length is by means of replacing button knife-edge extender, MCE 2 is fabricated from high strength fight weight aluminium with a durable anodized finish. The knife-edges are made from oil hardened tool steel to withstand heavy usage. Supports maximum dia of 40mm & maximum extension 2mm

    Panel Control Mode :
    Micro processor panel works independently. It shows load, disp. and extension on control panel. It has membrane keyboard or data entry. All specimen related parameters can be entered In to the control panel. At the end of the test one can entered see all test results on front penal display. Load vs Disp. graph can be directly obtained on dot matrix printer.
    Servo Control System for UTM with Stepper :
    MCS has developed unique system Io add servo control facility to UTM. The system contains following.
    Motorised servo valve with following items :
    • Hydraulic loading valve
    • Stepper motor, capacity 20 kg-cm
    • Power card for stepper motor
    Windows based software for controlling servo valve
    MCS Make Centrol box with Auto / Manual selection
    Potentiometer for operating valve in manual mode
    Every UTM has manually operated hydraulic valve. which controls rate of loading. It is very difficult to achieve required rate of loading manually. Due to stringent testing requirements, it is required to conduct tests at specified load rate or strain rate. MCS has developed servo system where above loading valve is converted into a motorized valve by using stepper motor. A special windows based software controls this valve and the operation of the machine.

    Servo Controlled operation :

    There are two models fo operation. In manual control moe, the machine is operated by means of potentiometer provided on control box. Here, no rate control is offered. The machine is operated by means of potentiometer in similiar ways as we operate hydraulic valve.

    In auto control mode, operator enters required load / Disp / Strain rate on computer. When we start the test, the required rate is always compared with achieved rate and error feedback controls machine accurately.

    Following rate control modes are available :
    • Load rate control : 1 kN to 10 kN per sec
    • Displacement rate control : .01 mm to 1 mm per sec.
    • Strain rate control : 0.001% to 0.01 % per sec. (strain rate control is possible only with extensometer)
    Servo Control with MOOG Valve:
    Instead of stepper motor, a MOOG valve can be used for precise load rate control

     



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