A kind of platinum channel and its manufacturing method and zirconia dry powder mixture for coating
A platinum channel and manufacturing method technology, which is applied to manufacturing tools, glass manufacturing equipment, coatings, etc., can solve the problems of platinum shedding and inability to completely isolate the air in the platinum channel, and achieves that it is not easy to fall off, is well isolated from outside air, and has good compactness. Effect
Active Publication Date: 2020-05-05
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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Problems solved by technology
Al 2 o 3 Dry powder liquid filling is used to prevent oxidation on the surface of the platinum channel, but at high temperature Al 2 o 3 After the dry powder liquid solidifies, it will cause a gap atmosphere between the platinum channel and the high temperature resistant material, which cannot completely isolate the air, causing the platinum on the surface of the platinum channel to oxidize and fall off
Method used
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Embodiment 1
[0030] Zirconia dry powder mixture for platinum channel coating, in terms of mass percentage, including: 12.68% SiO 2 , 4.3% Al 2 o 3 , 83% ZrO 2 , 0.02% Na 2 O.
Embodiment 2
[0032] Zirconia dry powder mixture for platinum channel coating, in terms of mass percentage, including: 9.3% SiO 2 , 3.69% Al 2 o 3 , 87% ZrO 2 , 0.01% Na 2 O.
Embodiment 3
[0034] Zirconia dry powder mixture for platinum channel coating, in terms of mass percentage, including: 16% SiO 2 , 3.97% Al 2 o 3 , 80% ZrO 2 , 0.03% Na 2 O.
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Abstract
The invention discloses a platinum channel and a manufacturing method and a coating zirconium oxide dry powder mixture thereof. After the zirconium oxide dry powder mixture is sprayed on the surface of a platinum channel body, oxidization and volatilization of platinum in the platinum channel in a sintering process under high temperature can be effectively prevented. The zirconium oxide dry powdermixture is prepared from the following ingredients of 9.3% to 16% of SiO2, 2.7% to 4.3% of Al2O3, 80% to 87% of ZrO2 and 0.01% to 0.03% of Na2O. According to the platinum channel, the outer surface of the platinum channel is coated by a coating layer of the zirconium oxide dry powder mixture; a zirconium oxide dry powder filling material, a zirconium oxide groove profile brick and a zirconium oxide thermal insulation brick which are in tight contact are sequentially arranged outside the coating layer from inside to outside; the thickness of the coating layer is 0.8 to 1mm.
Description
technical field [0001] The invention belongs to the field of producing high-alumina cover glass, and in particular relates to a platinum channel, a manufacturing method thereof, and a zirconia dry powder mixture for coating. Background technique [0002] The main function of the platinum channel in the production process of the cover glass is to clarify, homogenize and cool the molten glass, so as to provide qualified and high-quality molten glass to the next process. [0003] The platinum tube of the platinum channel body is mainly made of PtRh alloy material, which is expensive, and the platinum channel plays a pivotal role in the production process of high-alumina cover glass, providing stable and high-quality glass liquid to the forming process, so once damaged, it will cause immeasurable losses. The clarification and homogenization of the glass liquid is carried out at very high temperature, so the platinum channel will be under high temperature conditions for a long t...
Claims
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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/225C03B5/182C03B5/23B05D1/06C04B35/48C04B35/622
CPCB05D1/06C03B5/182C03B5/225C03B5/23C04B35/481C04B35/62222C04B2235/3201C04B2235/3217
Inventor 张国权马森
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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