Method for determining shrinkage rate of glass

The invention relates to the technical field of glass production, and discloses a method for determining the shrinkage rate of glass. The method comprises the following steps: 1, preparing glass fibers to be determined, and determining the length L1 of heat treated glass fibers in the glass fibers to be determined; 2, carrying out heat treatment on the glass fibers to be determined, and determining the length change deltaL of the glass fibers before and after the heat treatment; and 3, determining the shrinkage rate C of the glass fibers to be determined, wherein C = deltaL/L1. The method has the advantages of accurate determination result, high reappearance, high precision, high result credibility, and provision of a shrinkage determination reference standard for the research and development process of plate glass. 本发明涉及玻璃生产技术领域，公开了种测定玻璃收缩率的方法，该方法包括：(1)制备待测玻璃丝，并确定待测玻璃丝中进行热处理的玻璃丝长度值L1；(2)将待测玻璃丝进行热处理，并确定热处理前后玻璃丝的长度变化值ΔL；(3)确定待测玻璃丝的收缩率C，其中，C＝ΔL/L1。本发明的方法，测定结果准确、重现性高、精密度高、结果可信度高，为平板玻璃的研发过程提供了个收缩率测定的参考标准。