Electrode for preparing cover glass

Abstract

The invention discloses an electrode for preparing a piece of cover glass. The electrode comprises an electrode containing an additive, the electrode is installed at a pool wall of a melting pool, andthe other side of the electrode is provided with a water cooling plate; the electrode employs stannic oxide as a base-material, the additive comprises antimony oxide, zirconium oxide and copper oxide, and the mass of the zirconium oxide is 1.8-2.2% of the total mass of the electrode. The electrode for preparing the cover glass comprises the electrode containing the additive, the electrode is installed at a pool wall of a melting pool, the other side of the electrode is provided with a water cooling plate; the electrode employs stannic oxide as a base-material, the additive comprises antimonyoxide, zirconium oxide and copper oxide, ZrO2 is added into the stannic oxide electrode material, so that the electrode has higher usage temperature, high resistance to oxidation, and better erosion resistance; the product can be operated at 1600 DEG C for a long time, service lives of the electrode and a tank furnace are prolonged, compactness of the electrode material is increased, and falling of blocks and pollution on glass liquid are not easy to happen in production.

Description

technical field [0001] The invention belongs to the technical field of cover glass manufacturing, and in particular relates to an electrode for preparing cover glass. Background technique [0002] The electrode materials used for electrode melting include molybdenum, tin oxide, platinum, etc., each with its own characteristics. If the cost is considered, molybdenum electrodes can be used, but the loss of Mo increases, the life of the electrodes is shortened, and stones of Mo, As, and Sb may be produced. At the same time, the molybdenum electrodes are easy to oxidize. In addition to special glass, the use of tin oxide electrodes should be considered comprehensively. The effect is better. Tin oxide is a kind of high-quality refractory material, which is non-conductive. After adding various conductive additives to tin oxide powder, it becomes a tin oxide electrode after sintering. When melting glass higher than 1650 ° C, it can still maintain a very high temperature. Good per...

AI Technical Summary

Problems solved by technology

If the cost is considered, molybdenum electrodes can be used, but the loss of Mo increases, the life of the electrodes is shortened, and stones of Mo, As, and Sb may be produced. At the same time, the molybdenum electrodes are easy to oxidize. In addition to special glass, the use of tin oxide electrodes should be considered comprehensively. better effect

Tin oxide is a kind of high-quality refractory material, which is non-conductive. After adding various conductive additives to tin oxide powder, it becomes a tin oxide electrode after sintering. When melting glass higher than 1650 ° C, it can still maintain a very high temperature. Good performance, and the advantages of using tin oxide electrodes are obvious. The length of the electrodes in the furnace remains stable, that is, the current intensity on the surface of the conductive electrodes remains stable, but the tin oxide electrodes are eroded during use, and the life is shortened accordingly. Furnace life

Images