Title:
PRODUCTION METHOD OF GLASS SUBSTRATE
Document Type and Number:
Japanese Patent JP2017178726
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of a glass plate that suppresses degradation of electrodes in a melting vessel and improves durability thereof to prolong a life of the melting vessel.SOLUTION: A production method of a glass substrate includes a melting step for producing molten glass by melting a glass raw material in a melting furnace that has electrodes 12 arranged in at least a pair of open holes 23 and is made of a plurality of stacked refractories 31, 32, 33. The melting furnace has a melting vessel insulation structure 24 around the electrodes 12 protruding from the open holes 23 to the outside of the melting furnace. A cooling space is formed between the electrodes 12 protruding from the open holes 23 to the outside of the melting furnace and the melting vessel insulation structure 24 to cool the periphery surface of the electrodes 12 protruding from the open holes 23 to the outside of the melting furnace.SELECTED DRAWING: Figure 5
Inventors:
MIZUNO SHINJI
SUZUKI MAKOTO
FUJIMOTO SHINGO
SUZUKI MAKOTO
FUJIMOTO SHINGO
Application Number:
JP2016070677A
Publication Date:
October 05, 2017
Filing Date:
March 31, 2016
Export Citation:
Assignee:
AVANSTRATE INC
AVANSTRATE KOREA INC
AVANSTRATE KOREA INC
International Classes:
C03B5/167; C03B5/027; C03B5/42
Attorney, Agent or Firm:
Global IP Tokyo Patent Business Corporation