摘要:
The glass sheet production method of the present invention is a method for producing a surface-modified glass sheet, including a gas contact step of bringing hydrogen fluoride (HF) gas, hydrogen chloride (HCl) gas, and water vapor into contact with at least one principal surface of a glass sheet. A gas containing the hydrogen fluoride (HF) gas is used in the gas contact step, and in the gas containing the hydrogen fluoride (HF) gas, a volume ratio of the water vapor to the hydrogen fluoride (HF) gas (volume of water vapor / volume of HF gas) is 8 or more.
摘要:
The glass sheet production method of the present invention is a method for producing a surface-modified glass sheet. This method includes a gas contact step of bringing hydrogen fluoride (HF) gas and hydrogen chloride (Cl) gas into contact with at least one principal surface of a glass sheet having a temperature in a range of 450°C to 630°C. A gas containing the hydrogen fluoride (HF) gas is used in the gas contact step, and in the gas containing the hydrogen fluoride (HF) gas, a volume ratio of water vapor to the hydrogen fluoride (HF) gas (volume of water vapor / volume of HF gas) is less than 8.
摘要:
A glass processing method comprising steps (i), (ii) carried out in the order mentioned. In step (i), a laser pulse (11) with a wavelength λ is condensed by a lens and is applied to a glass plate (12) to form an altered portion (13) at the portion, irradiated with a laser pulse (11), of the glass plate (12). In step (ii), the altered portion (13) is etched by using an etchant having an etching rate larger for the altered portion (13) than that for the glass plate (12). The laser beam used includes the following conditions: The pulse width of a laser pulse (11) ranges from 1ns to 200ns, with a wavelength λ being up to 535nm. The absorption coefficient of the glass plate (12) at a wavelength λ is up to 50cm-1. A value obtained from a lens focal distance L (mm) divided by the beam diameter D (mm) of the laser pulse (11) when entering the lens is at least 7.
摘要:
A glass processing method comprising steps (i), (ii) carried out in the order mentioned. In step (i), a laser pulse (11) with a wavelength λ is condensed by a lens and is applied to a glass plate (12) to form an altered portion (13) at the portion, irradiated with a laser pulse (11), of the glass plate (12). In step (ii), the altered portion (13) is etched by using an etchant having an etching rate larger for the altered portion (13) than that for the glass plate (12). The laser beam used includes the following conditions: The pulse width of a laser pulse (11) ranges from 1ns to 200ns, with a wavelength λ being up to 535nm. The absorption coefficient of the glass plate (12) at a wavelength λ is up to 50cm -1 . A value obtained from a lens focal distance L (mm) divided by the beam diameter D (mm) of the laser pulse (11) when entering the lens is at least 7.
摘要:
A glass substrate processing method includes a step of irradiating laser light L onto a glass substrate 1 such that the laser light L is focused within the glass substrate 1, thereby forming a high density area 3 that has a higher density than areas where the laser light L is not irradiated around the portion where the laser light L is focused; and a step of performing chemical etching on the glass substrate 1 using an etching solution such that at least a portion of the high density area is allowed to remain, thereby forming a projection 2 on a surface 1a of the glass substrate 1.
摘要:
A vacuum glass panel including a vacuum glass, a sash, and a grazing gasket is provided. The vacuum glass includes a first glass plate, a second glass plate having substantially the same area as the area of the first glass plate in a front view, and a depressurized layer arranged between the first glass plate and the second glass plate opposed to the first glass plate. The lower face of the first glass plate and the lower face of the second glass plate are misaligned relative to each other in the vertical direction. The sash includes two groove walls that define a groove for receiving the upper, lower, right, and left peripheral edge portions of the vacuum glass in a front view. The grazing gasket is arranged on at least the lower portion of the vacuum glass inside the groove and seals a gap between the vacuum glass and the groove walls, and includes a clamping portion for clamping the vacuum glass from a first outer principal surface of the first glass plate and a second outer principal surface of the second glass plate near the top portions of the groove walls.
摘要:
The glass sheet production method of the present invention is a method for producing a surface-modified glass sheet, including a gas contact step of bringing hydrogen fluoride (HF) gas, hydrogen chloride (HCl) gas, and water vapor into contact with at least one principal surface of a glass sheet. A gas containing the hydrogen fluoride (HF) gas is used in the gas contact step, and in the gas containing the hydrogen fluoride (HF) gas, a volume ratio of the water vapor to the hydrogen fluoride (HF) gas (volume of water vapor / volume of HF gas) is 8 or more.
摘要:
The glass sheet production method of the present invention includes the steps of (I) bringing a first acid gas into contact with at least one principal surface of a sheet-shaped glass material, the first acid gas containing hydrogen fluoride (HF) gas but not containing hydrogen chloride (HCl) gas and having a volume ratio of water vapor to HF gas of less than 8, the glass material containing at least sodium as a component and having a temperature in a range from a glass transition temperature to a temperature 250°C higher than the glass transition temperature; (II) before or after the step (I), bringing a second acid gas into contact with the principal surface of the sheet-shaped glass material, the second acid gas containing HCl gas and optionally containing HF gas, wherein when the second acid gas contains both HCl gas and HF gas, the second acid gas further contains water vapor with a volume ratio of water vapor to HF gas of 8 or more; and (III) cooling the sheet-shaped glass material having undergone both the step (I) and the step (II) so as to obtain a glass sheet.