Gray coated glass, and preparation method

Abstract

This invention discloses a method for producing grey-colored coated glass. The grey-colored coated glass comprises at least two layers: a glass plate and a film layer on the surface of the glass plate. The film layer comprises oxides of Co and Mn, and comprises at least one of ZnO, Al2O3, ZrO2, CuO, Fe2O3, Cr2O3 and MgO. The film layer is 40-80nm thick. The grey-colored coated glass has pure color, and can replace bulk-grey-colored glass. The method comprises on-line high-temperature pyrolysis spraying, which is realized during folating galss production process. The method utilizes the heat of the glass plate to pyrolyze, oxidize and deposite metal compounds in spraying solution onto the surface of glass plate to form the film layer. The method realizes continuous production, thus can increase production efficiency, lower the cost, and lower energy consumption. The light permeability of the grey-colored coated glass is 20-65%.

Description

Technical field

[0001] The invention relates to a gray coated glass and an online manufacturing method thereof, belonging to the technical field of glass coating.

Background technique

[0002] Coated glass is divided into online coated glass and offline coated glass according to the production process.

[0003] On-line coating means that the coating process is carried out in the float glass manufacturing process. For example, on-line thermal spraying is after the forming area of ​​the float production line and the beginning of the annealing kiln. After the kiln, the film layer is burned and attached to the glass surface, so it is called online coating.

[0004] Off-line coating is to carry out coating processing after the flat glass leaves the factory. Compared with online coating, the firmness of the film layer must be affected, so offline coating has certain requirements for the "freshness" of the original glass. Off-line coating generally adopts methods such as mag...

Examples

Embodiment 1

[0033] Dissolve 5 grams of copper chloride in 500 grams of water to form an aqueous solution; add the surfactant used in the aqueous system; then dissolve a mixture of 95 grams of dipropionylmethylcobalt and manganese formylacetonate into 400 grams of dichloromethane , forming an organic solution; adding the organic solution to the above aqueous solution to form a spray solution.

[0034] Cut a 300mm×300mm white glass sample, wash it with detergent and deionized water in sequence, dry it, and put it in a high-temperature furnace. With the dry and purified compressed air as the carrier gas, driven by the carrier gas, the above-mentioned spraying solution is delivered to the hand-held Binks spray gun through the pipeline, and the spraying solution is sprayed onto the surface of the moving hot glass plate through the spray gun, and the moving hot glass The surface temperature of the plate was 580°C. The distance from the spray gun nozzle to the glass plate is 20cm, the delivery ...

Embodiment 2

[0043] The mixture of 15 grams of chromium formate and iron dipropionyl acetonate, the mixture of 135 grams of cobalt ammonium oxalate and manganese propionyl acetonate were dissolved in 850 grams of methylene chloride to form an organic solution, which was used as spray solution one.

[0044] A mixture of 13 grams of silicon tetrachloride and calcium chloride was dissolved in 87 grams of water to form an aqueous solution, which was used as spray solution two.

[0045] Cut a 300mm×300mm white glass sample, wash it with detergent and deionized water in sequence, and dry it, then put it in a high-temperature furnace, heat the glass plate to 530°C, take out the dry and purified compressed air as the carrier gas, and place it on the carrier Driven by the gas, the above-mentioned spray solution 2 is transported to the hand-held Binks spray gun through the pipeline, and the spray solution is sprayed onto the surface of the moving hot glass plate through the spray gun to form a dense ...

Technical field

[0001] The invention relates to a gray coated glass and an online manufacturing method thereof, belonging to the technical field of glass coating.

Background technique

[0002] Coated glass is divided into online coated glass and offline coated glass according to the production process.

[0003] On-line coating means that the coating process is carried out in the float glass manufacturing process. For example, on-line thermal spraying is after the forming area of ​​the float production line and the beginning of the annealing kiln. After the kiln, the film layer is burned and attached to the glass surface, so it is called online coating.

[0004] Off-line coating is to carry out coating processing after the flat glass leaves the factory. Compared with online coating, the firmness of the film layer must be affected, so offline coating has certain requirements for the "freshness" of the original glass. Off-line coating generally adopts methods such as mag...

Examples

Embodiment 1

[0033] Dissolve 5 grams of copper chloride in 500 grams of water to form an aqueous solution; add the surfactant used in the aqueous system; then dissolve a mixture of 95 grams of dipropionylmethylcobalt and manganese formylacetonate into 400 grams of dichloromethane , forming an organic solution; adding the organic solution to the above aqueous solution to form a spray solution.

[0034] Cut a 300mm×300mm white glass sample, wash it with detergent and deionized water in sequence, dry it, and put it in a high-temperature furnace. With the dry and purified compressed air as the carrier gas, driven by the carrier gas, the above-mentioned spraying solution is delivered to the hand-held Binks spray gun through the pipeline, and the spraying solution is sprayed onto the surface of the moving hot glass plate through the spray gun, and the moving hot glass The surface temperature of the plate was 580°C. The distance from the spray gun nozzle to the glass plate is 20cm, the delivery ...

Embodiment 2

[0043] The mixture of 15 grams of chromium formate and iron dipropionyl acetonate, the mixture of 135 grams of cobalt ammonium oxalate and manganese propionyl acetonate were dissolved in 850 grams of methylene chloride to form an organic solution, which was used as spray solution one.

[0044] A mixture of 13 grams of silicon tetrachloride and calcium chloride was dissolved in 87 grams of water to form an aqueous solution, which was used as spray solution two.

[0045] Cut a 300mm×300mm white glass sample, wash it with detergent and deionized water in sequence, and dry it, then put it in a high-temperature furnace, heat the glass plate to 530°C, take out the dry and purified compressed air as the carrier gas, and place it on the carrier Driven by the gas, the above-mentioned spray solution 2 is transported to the hand-held Binks spray gun through the pipeline, and the spray solution is sprayed onto the surface of the moving hot glass plate through the spray gun to form a dense ...