Glass TestingGlass
Glass Annealing and Strain Point Tester
The SJY-I determines glass annealing and strain points by the fiber-drawing method while a 0.65 mm glass fiber is cooled at 4 °C/min. It references ASTM C336, SJT 11039-1996, and JC/T 752-1996 and also lists a 1,000 °C maximum temperature, PID control, and ±1 °C temperature error.
- Model
- SJY-I
- Category
- Glass Testing
Product description
Product Description
The annealing point is the temperature at which a uniformly sized 0.65 mm glass fiber elongates at 0.14 mm/min under a specified load during cooling at 4 °C/min. The strain point is extrapolated from the annealing point at 0.0316 times that elongation rate.
The SJY-I uses PID automatic temperature control with a listed temperature error of ±1 °C.
Specifications
Technical Specifications
| Parameter | Specification |
|---|---|
| Referenced standards | ASTM C336; SJT 11039-1996; JC/T 752-1996 |
| Test method | Fiber-drawing method |
| Glass-fiber diameter | 0.65 mm |
| Cooling rate | 4 °C/min |
| Annealing-point elongation rate | 0.14 mm/min |
| Strain-point extrapolation rate | 0.0316 × annealing-point elongation rate |
| Maximum temperature | 1,000 °C |
| Temperature control | Automatic PID control |
| Temperature error | ±1 °C |
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