The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Dec. 26, 2022
Zhejiang University, Hangzhou, CN;
Hangzhou Grand Canal Comprehensive Protection Development and Construction Group Co., Ltd., Hangzhou, CN;
Gaorong Han, Hangzhou, CN;
Yijian Wang, Hangzhou, CN;
Xuebo Li, Hangzhou, CN;
Yong Liu, Hangzhou, CN;
Junbo Liu, Hangzhou, CN;
Bentao Zhang, Hangzhou, CN;
Li Li, Hangzhou, CN;
Shaobo Gu, Hangzhou, CN;
Lin Li, Hangzhou, CN;
Dongshen Zhou, Hangzhou, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
HANGZHOU GRAND CANAL COMPREHENSIVE PROTECTION DEVELOPMENT AND CONSTRUCTION GROUP CO., LTD., Hangzhou, CN;
Abstract
Disclosed is a low-expansion borosilicate transparent glaze, a preparation method thereof, and use thereof in preparation of a glaze product by secondary fusion-cast molding. The low-expansion borosilicate transparent glaze has raw material composition by mass percentage including: 72%-80% of SiO, 4%-12% of BO, 4%-12% of NaO, 0.1%-4% of CaO, 0.1%-6% of AlO, 0-0.05% of FeO, 0-2% of MgO, 0-2% of KO, 0-2% of ZnO, 0-2% of BaO, 0-2% of ZrO, 0-0.5% of LiO, and 0-0.5% of TiO, wherein a sum of mass percentages of SiO, BOand AlOis 85%-95%. The preparation method includes steps of: (1) after mixing dried raw materials, melting at 1400-1540° C. to obtain a high-temperature glass melt; (2) cooling the high-temperature glass melt to 1150-1230° C. to mold; and (3) annealing a molded glass at 530-600° C. to obtain the low-expansion borosilicate transparent glaze.