THERMAL BREAK STRIP STRAIGHTNESS AND TWISTING TEST METHODS AND TOOLS
THERMAL BREAK STRIP STRAIGHTNESS AND TWISTING TEST METHODS AND TOOLS
PART 1. STRAIGHTNESS
TEST TOOLS: STRAIGHTEDGE
TEST METHODS:
Pick a baseline. Align the two ends of the thermal break strip on the reference line, and there will be a naturally raised bending height in the middle.
Select the highest position among the bending heights to measure.
For example, picture 1 and 2.
Picture 1.
Picture 2.
PART 2. TWIST
TEST TOOLS: STRAIGHTEDGE
TEST METHODS:
Fix one end of the thermal break strip on a flat surface, and naturally tilt the other end.Measure the distance between T1 and T2 respectively. T2 minus T1 is the twist of the strip.
For example, picture 3 and 4.
Picture 3.
Picture 4.
The above straightness and twisting detection methods are from the Chinese standard GB G237.1-2017.