ZLQ-500 Sponge Falling Ball Rebound Tester Introduction
This machine is designed and manufactured according to GB/T6670 and ISO8307 test standards, and is suitable for measuring the falling ball resilience performance of flexible polyurethane foam. The instrument falls on the foam sample by a free fall motion from a given height and mass of the steel ball, and the time when the steel ball bounces and falls is measured by the photoelectric sensor, and then the back of the steel ball is calculated by the microprocessor. The height of the bomb. According to the test method of GB/T6670-A, measure the rebound height of each sample for 3 times, select the maximum height as the rebound height of the sample, and take the average value of the maximum height of the three rebounds as the rebound of the material. Height value. According to the test method of ISO8307 and GB/T6670-B, measure the rebound height of each sample for 3 times, take the median value of the rebound height of 3 times, measure the three samples, and take the height of the rebound of the three samples. The median of the value as the rebound height value for the material. The percentage of the ratio is the rebound rate of the foam compared to the height of the ball drop. The rebound rate indicates the rebound resilience of the foam. Technical Parameters
Falling ball rebound accuracy: relative accuracy less than 1.5%
Steel ball drop height: 460+0.5%
Steel ball drop height: 500+0.5%
Plastic pipe diameter: 40±4mm
Steel ball diameter: Φ=16-0.15
Steel ball quality: 16.7-0.5g
Measuring range: 10%-100%
Reading method: digital display
Sample size: 100 × 100 × 50mm
Test tray: adjustable
Introduction
This machine is designed and manufactured according to GB/T6670 and ISO8307 test standards, and is suitable for measuring the falling ball resilience performance of flexible polyurethane foam. The instrument falls on the foam sample by a free fall motion from a given height and mass of the steel ball, and the time when the steel ball bounces and falls is measured by the photoelectric sensor, and then the back of the steel ball is calculated by the microprocessor. The height of the bomb. According to the test method of GB/T6670-A, measure the rebound height of each sample for 3 times, select the maximum height as the rebound height of the sample, and take the average value of the maximum height of the three rebounds as the rebound of the material. Height value. According to the test method of ISO8307 and GB/T6670-B, measure the rebound height of each sample for 3 times, take the median value of the rebound height of 3 times, measure the three samples, and take the height of the rebound of the three samples. The median of the value as the rebound height value for the material. The percentage of the ratio is the rebound rate of the foam compared to the height of the ball drop. The rebound rate indicates the rebound resilience of the foam.
