GB/T 37991-2019
ActiveMeasuring method for ultra-thin glass reheating line shrinkage—Dilatometer method
超薄玻璃再热线收缩率测试方法 膨胀仪法
Application Summary AI generated
This standard specifies a dilatometer-based test method for measuring the linear shrinkage of ultra-thin glass (typically ≤1.1mm thick) when subjected to reheating, simulating thermal processing conditions. It is applied in the manufacturing and quality control of ultra-thin glass used in displays, touch panels, and photovoltaic substrates, where dimensional stability during subsequent heat treatments is critical. The method ensures consistent product performance by quantifying shrinkage behavior under controlled temperature ramps.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.