Platinum channel and manufacturing method and coating zirconium oxide dry powder mixture thereof
A platinum channel and manufacturing method technology, applied in the direction of manufacturing tools, glass manufacturing equipment, coatings, etc., can solve the problems of incomplete isolation of air, platinum channel platinum falling off, etc., to achieve good isolation of external air, not easy to fall off, and good compactness Effect
Active Publication Date: 2018-02-27
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% of 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% of 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 high-aluminum cover glass production, and specifically relates to a platinum channel, a manufacturing method thereof, and a zirconium oxide dry powder mixture for coating. Background technique [0002] The main function of the platinum channel in the production process of cover glass is to clarify, homogenize, and cool the molten glass, and provide qualified and high-quality molten glass to the next process. [0003] The platinum tube body of the platinum channel is mainly made of PtRh alloy material, and the cost is high, and the platinum channel plays a pivotal role in the production process of high-aluminum cover glass, providing stable and high-quality glass liquid for the forming process, so once damaged, it will Cause immeasurable losses. The clarification and homogenization of the glass liquid is carried out at a very high temperature, so the platinum channel will be under high temperature conditions for a long ti...
Claims
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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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