摘要:
A device for supporting a ribbon of glass, having at least one roller arranged in an area of an underside of the ribbon of glass. In order to keep a ribbon of glass as free as possible of mechanical damage during production, at least one support device is assigned to the roller. With an actuating device the roller or the support device can selectively be contacted with the underside of the ribbon of glass, wherein the support device is in contact, at least in some areas, with the underside of the ribbon of glass by way of a gas cushion. The rollers are then employed at the start of production or after a ribbon of glass has snapped off in order to transmit an advancement force to the ribbon of glass.
摘要:
The invention concerns a process and a device from the production of molten glass.According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of the glass bath, on the one hand, and the outlet opening on the other hand are avoided and a an equal holding period of all melt particles in the tank furnace is achieved.
摘要:
This invention relates to a flat float glass that can be prestressed or transformed into a glass ceramic with high quartz mixed crystals or keatite mixed crystals. To eliminate undesirable surface defects during floating and to achieve superior characteristics of the glass or of the glass ceramic, in particular with regard to a low coefficient of thermal expansion and high light transmittance, the glass has a concentration of less than 300 ppb Pt, less than 30 ppb Rh, less than 1.5 wt. % ZnO and less than 1 wt. % SnO2, and is refined during melting without the use of the conventional fining agents arsenic oxide and/or antimony oxide.
摘要:
This invention relates to a flat float glass that can be prestressed or transformed into a glass ceramic with high quartz mixed crystals or keatite mixed crystals. To eliminate undesirable surface defects during floating and to achieve superior characteristics of the glass or of he glass ceramic, in particular with regard to a low coefficient of thermal expansion and high light transmittance, the glass has a concentration of less than 300 ppb Pt, less than 30 ppb Rh, less than 1.5 wt. % ZnO and less than 1 wt. % SnO2, and is refined during melting without the use of the conventional fining agents arsenic oxide and/or antimony oxide.
摘要:
A hinge (10) for furniture doors, the supporting wall stop part of which, which is constructed as a supporting arm (14), is coupled pivotably over two hinge guide rods (16; 18) with the door stop part, which is constructed as a hinge pot (12), with a spring-loaded mechanism, which it is formed by a leg spring, which is disposed in the supporting arm and engages an extension of the out to hinge guide rod (16), and a further leg spring, which is supported in the supporting arm. The leg spring is constructed as a double leg spring (42) with a middle double leg (44) of two parallel leg arms, protruding between two groups of spring coils (47) from, in each case, one of the inner spring coils, and two outer legs (46), protruding from the in each case outermost spring coil of each group. The middle double leg is constructed arc-shaped at its free end and embraces the hinge pin (22), which carries the inner hinge guide rod pivotably, at least partially with this arc-shaped end through a central recess in the bearing lug (38) of the inner hinge guide rod (18) on the side of the supporting arm and is held rotatably on the hinge pin (22). The free ends of the legs (46), protruding from the outer spring coils, are held in a recess (50) of the extension of the outer hinge guide rod so that they can be rotated about an axis extending parallel to the axis of the hinge pin (20) of the outer hinge guide rod (16) on the side of the supporting arm, the double leg spring (42) being held exclusively by the double leg (44) and the outer leg (46) in the supporting arm (14).
摘要:
The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight, based on oxide): SiO2 >60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; with MgO+CaO+SrO+BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1. The glass is particularly suitable for use as a substrate glass in display technology.
摘要翻译:本发明涉及一种无碱铝硼硅酸盐玻璃,其具有以下组成(以重量%计,基于氧化物):SiO 2> 60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; MgO + CaO + SrO + BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1。 该玻璃特别适用于显示技术中的基板玻璃。