The disclosure provides a prebaking device and a prebaking system for display substrate. The prebaking device includes a top plate, a bottom plate, a first side plate, a second side plate, a third side plate defined opposite to the first side plate and a fourth side plate defined opposite to the second side plate, the top plate, the bottom plate, the first side plate, the second side plate, the third side plate and the fourth side plate form a chamber cooperatively, the first side plate is defined with a window, the second side plate is defined with an air inlet hole to connect an air supply pipe of a hot air system, the fourth side plate is defined with an air exhaust hole to connect an exhaust system, the inner surface of the top plate is defined with an anti-adhere film.

A transparent substrate with a thin film multilayer coating, and the thin film multilayer coating includes a lower dielectric layer, a lower metal protective layer, a metal functional layer having an infrared reflecting function, an upper metal protective layer, and an upper dielectric layer, which are sequentially laminated on the transparent substrate, wherein the lower metal protective layer is thicker than the upper metal protective layer, and the thickness of the upper metal protective layer is 0.3 nm to 0.7 nm.

An interior material for cooking apparatus having good anti-staining and heat-resisting properties and strong surface intensity, easy to clean, and restorable from contamination, a cooking apparatus including the interior material therefor and method for removing stains from the interior material. The interior material for the cooking apparatus is formed of a coated layer including a silicon backbone and a fluorine functional group is formed on a base material.

The present invention relates to a baking tray (20) or baking grid, in particular a baking tray (20) for a cooking appliance (1), having a non-stick and/or non-wetting coating (12) obtainable by a process characterised by the following steps, a) providing a baking tray (20) or baking grid having a surface, in particular having an upper surface (7a) and a bottom surface (7b), b) preferably, pretreating of the surface (7a, 7b) of the baking tray (20) or baking grid at least partially, in particular completely, for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating (12) by mechanical treatment, physical treatment or chemical treatment, in particular by sandblasting and/or laser treatment and/or a surface activation treatment, particularly a plasma treatment, and/or an enamelling process to form a ground layer (13), c) applying the non-stick and/or non-wetting coating (12) to the pretreated surface (7a, 7b) of the baking tray (20) or baking grid or a surface (14a) of the ground layer (13), wherein the non-stick and/or non-wetting coating (12) comprises at least one layer (17) that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane. The invention further relates to a cooking appliance (1), in particular a domestic oven comprising such a baking tray (20) or baking grid and a method for manufacturing such a baking tray (20) or baking grid.

A cooking appliance includes a main body forming a machine room; a cooking chamber arranged below the machine room; an intermediate flow path including a first suction port and formed between the machine room and the cooking chamber; and a fan configured to suction air into the intermediate flow path, wherein the machine room includes a second suction port through which air is suctioned, and an opening portion connected to the intermediate flow path, the opening portion includes a first opening portion and a second opening portion arranged at a farther distance from the fan than the first opening portion, and the second opening portion has an area larger than an area of the first opening portion.

The present invention relates to an enamel composition capable of removing sugars as well as poultry oils as contaminants at a low temperature by using a catalyst oxide, to a manufacturing method therefor, and cooking utensils. The present invention provides an enamel composition, a manufacturing method therefor, and cooking utensils, wherein the enamel composition is capable of removing sugars as well as poultry oils as contaminants at a low temperature by comprising: at least one of SiO.sub.2, B.sub.2O.sub.3, Li.sub.2O, Na.sub.2O, and K.sub.2O; and TiO.sub.2.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance including an enamel composition are provided. The enamel composition may include a base glass frit, and a catalytic glass frit. Further, the enamel composition may include 3 to 20 parts by weight of the catalytic glass frit based on 100 parts by weight of the base glass frit.

A cooking appliance includes a main body forming a machine room; a cooking chamber arranged below the machine room; an intermediate flow path including a first suction port and formed between the machine room and the cooking chamber; and a fan configured to suction air into the intermediate flow path, wherein the machine room includes a second suction port through which air is suctioned, and an opening portion connected to the intermediate flow path, the opening portion includes a first opening portion and a second opening portion arranged at a farther distance from the fan than the first opening portion, and the second opening portion has an area larger than an area of the first opening portion.

A composition for enamel may include 20 to 45 wt % of SiO.sub.2; 1 to 15 wt % of B.sub.2O.sub.3, 10 to 20 wt % of one or more of Na.sub.2O, K.sub.2O, and Li.sub.2O, 1 to 5 wt % of NaF, 1 to 10 wt % of ZnO, 5 to 15 wt % of TiO.sub.2, 3 to 7 wt % of MoO.sub.3; 5 to 15 wt % of Bi.sub.2O.sub.3, 1 to 5 wt % of CeO.sub.2, and 1 to 10 wt % of one or more of MnO.sub.2, Fe.sub.2O.sub.3, and Co.sub.3O.sub.4. The composition may be used to coat a cooking appliance for easy removal of contaminants at room temperature.

An oven appliance includes a plurality of sidewalls defining a cooking chamber, a door to selectively open and close the cooking chamber; and a bottom panel assembly removably provided within the cooking chamber. The bottom panel assembly includes a panel defining an aperture, a front air deflector attached to the panel at the aperture, and a retention clip provided within the cooking chamber, the retention clip defining a receiving slot to selectively receive the panel when the panel is in an installed position.