FZ-7401低温冷绕试验机CORDWINDINGCRACKTESTERUL1581，VDE，JIS-C3005导体断面积100mm2以下之试料在本机内冷却1小时后，立即以均匀之速度将试样绕卷于规定直径之圆杆上，断面积100mm2以上之试料则***绕卷，再冷却相同之时间后，立即以反方向绕卷于圆杆上。试验后取出试样，检视试样表面是否产生龟裂、裂痕。Ifthecross-sectionalareaofconductorislessthan100mm2，thenspecimenmustbeputintotestingchamberforfreezingforonehour，afterthatimmediatelyrollsspecimenaroundthespecifiedrodinauniformspeed。Otherwise，forthecross-sectionalareaover100mm2，rollthespecimenbeforehandandputintochamberforfreezingonehour。Afterwa***，immediatelyrollspecimenaroundtherodinreversedirection。Finally，takeoutofspecimenforcheckingwhetheritssurfacehascrackorfissureornot。内箱尺寸Interiordimension50x60x50cm冷却方式Air-changerate气冷式AirFrozen温度控制器Temp.controllerPID数位设定PIDdigitalsetting温度范围Temperaturerange室温Roomtemp.~-40℃控温精度Accuracy&plu***n;1℃夹具Grips3组(sets)圆杆Rod试料厚度的1.5~2倍1.5~2timesthethicknessofspecimen材质Material内胆外箱均为SUS304#不锈钢电源PowerAC380V/50Hz)