Description
FNCT is used to determine the stress cracking resistance of polyethylene materials in any environment.A test specimen in the form of a square-section bar with coplanar notches in each face at the center,is subjected to astatic tensile load in a temperature-controlled environment,for example air,water,surfactant solution. The geometry of the specimen is such that plane strain conditions are obtained and brittle failure occurs under appropriate tensile load and temperature conditions.The time for this brittle failure to occur after loading is recorded.
Load Range: 20N~5000N
Load accuracy: ±1%(with self-calibration function)
Standard
ISO 16770 Full notch creep test ISO 899 Tensile creep (Optional) ISO 3501 Test of resistance to pull out of joins between polyethylene pressure pipes and fittings (Optional)
Parameter:
Number of stations: 3-6
Time accuracy:±1min
Force application: brushless servomotors,one for each station
Temperature controlling range: RT~95ºC(with cooling syetem); 50ºC~95ºC(without cooling system)
Force range:20-5000N, selectable independently
Temperature resolution:0.1ºC
Force resolution: 0.1N
Temperature error:±1ºC
Force accuracy:±1%
Thermal bath: stainless steel
Tensile travel: Max 200mm
Time range: up to 10000h
Displacement accuracy:±1mm
Time resolution:1s
Displacement resolution: 0.027mm
Sample dimensions: 100mm*10mm*10mm
100mm*10mm*4mm
90mm*6mm*6mm
Overall dimensions: L*W*H=(1620*730*1750)mm
Electrical supply: 380V, 50Hz, 15KW
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