Dry Heat Shrinkage Tester
The Dry Heat Shrinkage Tester is designed to measure the dry heat shrinkage rate and shrinkage force of tire cords, yarns, polyester, cotton, and other compatible materials under specified temperature conditions. By exposing specimens to controlled heat, the instrument evaluates dimensional changes and the force generated during thermal shrinkage.
Application
It is used to test the dry heat shrinkage performance of tire cord, yarn, polyester, cotton and other materials under certain temperature conditions.
Standards
(1) GB/T 9101-2017 — Polyamide 66 Dipped Tyre Cord Fabric
(2) GB/T 9102-2016 — Nylon 6 Dipped Tyre Cord Fabric
(3) GB/T 19390-2023 — Dipped Polyester Cord Fabric for Tyres
(4) ASTM D4974/D4974M-22 — Standard Test Method for Hot Air Thermal Shrinkage of Yarn and Cord Using a Thermal Shrinkage Oven
Parameters
| Parameter | Specification |
|---|---|
| Measuring Length | 250 ± 1 mm |
| Shrinkage Measurement Accuracy | 0.1% |
| Shrinkage Force Measurement Range | 0–25 N, customizable |
| Shrinkage Force Measurement Accuracy | 0.1 N |
| Heating Temperature Range | Room temperature to 250°C |
| Temperature Control Accuracy | ±0.1°C |
| Timing Range | 0–999 s |
| Power Supply | AC 220 V, 50 Hz |
| Overall Dimensions (L × W × H) | 520 × 370 × 510 mm |
| Weight | 35 kg |
Features
One machine for dual use, can separately test shrinkage rate and shrinkage force;
The system uses touch screen to carry out man-machine dialogue and input operation directly on the interface;
The temperature module is directly used to collect temperature, the thermocouple is built-in, PID control output heater, and heating temperature and heating speed can be set on the touch screen;
Through the LCD display, can directly display the current test data, while providing data storage function, can query multiple groups of test results, and can calculate the test results;
Equipped with a micro printer to print two values of shrinkage and shrinkage force respectively.
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