Digital Glass Softening Point Tester (Suspension Method)

The Digital Glass Softening Point Tester (Suspension Method) is designed to determine the softening temperature of glass fibers. The device operates by placing a glass fiber sample within an electric furnace and uniformly heating it until the fiber elongates under its own weight. The temperature at which the elongation rate reaches 1 mm/min is considered the softening point, which corresponds to the viscosity of the glass being 4.5*10⁶ Pa.s. This testing method ensures precise measurement of the glass's thermal behavior.

Designed in accordance with the ISO 7884-1978(E) standard, the instrument features a projection micrometer for measuring length changes in the glass fiber. Target industries include those involved in the production and testing of glass materials, where determining precise softening characteristics is vital for product quality and performance validation.