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    KAPPA DS Zwick/Roell

    Application
    The Electromechanical Creep Testing Machine KAPPA DS offers a wide range of applications.
    • Creep tests
    • Creep rupture tests
    • Stress rupture tests
    • Relaxation tests
    • Creep crack tests
    • Definition of individual stepless sequences of load and temperature
    • ‘Advanced creep‘ – Tests
    – Creep fatigue tests
    – Creep strain modelling (e.g. to give creep strength at various levels of strain)
    – Creep ductility
    – Creep property deterioration due to serviceexposure
    – Creep data from component tests
    • Additional load-, stress- and strain-controlled tests such as tensile, compression, flexure,

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    • Description
    • Reviews (0)
    • Technical Data
    • accessories

    Product Description

    Load Frame and drive system
    • Stand-alone floor machine
    • High stiffness, precision and flexibility by 4-columns-design and double screw design
    • Precise axial alignment according to ASTM E 292 by precision crosshead guiding and special seating load train
    • Requires no special base or foundation
    • Includes vibration isolation with Sylomer-dampers under the load frame
    • High resolution crosshead resolver and high resolution load channel permit excellent control characteristics
    • Precise speed of +/-0.1% of set speed in range of 1μm/h to 100 mm/min (no load or constant load) measurement (average over 5 sec or 10 mm)
    • High durability by use of brushless AC-motors
    • Drive control sampling and adjustment frequency 6 ms
    • Optional integration of high temperature controller in Kappa DS base

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    Technical data: Kappa 50 DS/Kappa 100 DS Kappa 150 DS/Kappa 250 DS
    load capacity 50 kN / 100 kN 150 kN / 250 kN
    test area-depth  unlimited unlimited
    test area-width between drive screws 610 mm 610 mm
    test area-height1 max. 1290 mm  max. 1250 mm
    crosshead strokes 1290 mm  1250 mm
    Lateral support of moving crosshead precision sliding bearing on four hard chromium plated columns (40 mm diameter), (50 mm diameter 250 kN)
    Test speed range 0.001 mm/h to 100 mm/min 0.001 mm/h to 100 mm/min
    Return speed 100 mm/min +C 16:C33100 mm/min
    Crosshead speed accuracy +/- 0.1 % of setting +/- 0.1 % of setting
    (no load or constant (no load or constant
    load averaged over 10 load averaged over 10
    mm or 5 s) mm or 5 s)
    Resolution of strokeencoder 0,003 μm 0,003 μm
    Frame Dimensions (WxDxH) 860 x 655 x 2300 mm  970 x 685 x 2400 mm
    Weight 840 kg 1120 kg
    Power requirements 230 VAC, 1 kVA 230 VAC, 1 kVA

    Load cells
    • Rotational symmetrical Design
    • Precise axial alignment
    • Electronic „Plug and Play“-Type (Calibration and technical data are saved in sensor plug)
    • High accuracy (Linearity, Repeatability, Hysteresis,Resolution) acc. to ASTM E 4 and ISO 7500-1
    • High measurement range in class 1 acc. to ISO 7500-1 from 0.2 % ....100% of nominal load
    • Extreme low temperature sensitivity

    Pull rods
    • Pull rods made of nickel-based superalloy
    • Durability > 3 years at full load
    • Upper pull rod with spherical bearing, lower pull rod with clamping lever
    • Axial alignment acc. to ASTM E 292 and NADCAP-requirements
    • No additional alignment cardan joints necessary

    HT-furnace
    • 3-zone furnace standard from 100/200°C to 1.200 °C
    • Internal diameter: 100 mm
    • Heated length: 300 mm
    • Vertical positioning of furnace: furnace stays in the centre of the specimen during test
    • Openings for load train, Thermocouples and Extensometers
    • Optional side windows for optical strain measurement
    • 3 Thermocouples for furnace controller, up to 3 additional Thermocouples for temperature control at the specimen

    HT-controller
    • Integrated, sophisticated Control-Algorithm for a precise Temperature along specimen and to prevent Temperature overshooting
    • Empirically determined control parameters for different temperatures are no longer required
    • Automatic Controller settings from 100/200°C to1.200°C
    • Temperature-tolerances acc. ASTM E 139
    • Interface for 6 Thermocouples (3 for furnace, 3 forspecimen special configurations possible)
    • Digital display of temperatures
    • Stand Alone or PC-operation possible