A roller for a roller hearth furnace, the roller including a water-cooled, rotatably mounted carrying axle on which a plurality of support rings are arranged at a spacing from one another. In the axial region between and next to the support rings, the carrying axle is provided with insulation composed of a fiber material and configured with protection of the outer circumference of the fiber material from the environment. In the case of insulation constructed from ring-shaped punched parts, the insulation arranged in the axial region between and next to the support rings is composed of circular or ring-shaped punched fiber parts. The protection is configured as ring-shaped insulating disks composed of a more resistant material than that of the punched fiber parts, and at least one punched fiber part is provided in each case between two insulating disks.

A method for producing laminated glass for automobile windows includes:

heating and bend forming two glass plates; and

bonding together the two bend-formed glass plates via an interlayer film, wherein before the heating and bend forming of the two glass plates, at least one glass plate of the two glass plates that are flat, is conveyed by a conveying unit while either a conveying unit-facing surface of the at least one glass plate or a non-facing surface of the at least one glass plate that is opposite to the conveying unit-facing surface is scratched by the conveying unit, and

in the bonding together of the two bend-formed glass plates via the interlayer film, the scratched surface is disposed such that the scratched surface is situated on a vehicle-interior side upon the laminated glass for automobile windows being attached to an automobile.

A lift-up roller arrangement for electronic float glass, including a plurality of lift-up rollers rotatably arranged on the inner wall of an annealing kiln, wherein a plurality of boron nitride rings are fixedly sleeved on the outer side wall of each lift-up roller; a heat-resisting steel tubes is arranged on each of both sides of each lift-up roller; a plurality of exhaust holes are arranged on an outer side wall of the heat-resisting steel tube; the heat-resisting steel tube is in communication with an external hot gas supply case; and a plurality of cleaning assemblies used in cooperation with the lift-up rollers are arranged at the inner bottom of the annealing kiln.

A device for heat treatment is provided. The device includes at least one processing chamber arranged in an elongated housing having a heating device and having a transport system for continuous transport of material to be treated through the processing chamber. The transport system has two parallel endless conveyor belts spaced from each other and a plurality of cylinders made of quartz glass that bridge the distance between the conveyor belts. The cylinders are supported on these belts and the material to be treated is supported on the cylinders for the heat treatment. The cylinders are designed as twin tubes, formed by two tubular compartments separated from each other by an intermediate partition. Each tubular compartment has a longitudinal axis and is connected rotation-free at its end with the conveyor belts.

The present invention relates to a water-cooled handling roll (100) for handling a load (50), in particular a thin slab, in a furnace for temperature heating, maintaining and for buffering, arranged between casting and roughing, in a continuous casting and rolling process for thin carbon steel slabs. The roll (100) comprises a first internally hollow shaft (110), which is coated by an insulating and/or refractory material and a plurality of wheels (25) connected in stably fixed manner to an outermost surface (111) of the first shaft (110) to handle and support the load (50). According to the invention, the roll (100) also comprises a second shaft (120) arranged within an inner cavity of the first shaft (110) in position coaxial to the first shaft (110) and so as to define a gap (30) between the first shaft (110) and said second shaft (120). The roll (100) further comprises cooling water circulation means housed at least in part within said second shaft (120).

The present invention relates to a water-cooled handling roll (100) for handling a load (50), in particular a thin slab, in a furnace for temperature heating, maintaining and for buffering, arranged between casting and roughing, in a continuous casting and rolling process for thin carbon steel slabs. The roll (100) comprises a first internally hollow shaft (110), which is coated by an insulating and/or refractory material and a plurality of wheels (25) connected in stably fixed manner to an outermost surface (111) of the first shaft (110) to handle and support the load (50). According to the invention, the roll (100) also comprises a second shaft (120) arranged within an inner cavity of the first shaft (110) in position coaxial to the first shaft (110) and so as to define a gap (30) between the first shaft (110) and said second shaft (120). The roll (100) further comprises cooling water circulation means housed at least in part within said second shaft (120).

A lift-up roller arrangement for electronic float glass, including a plurality of lift-up rollers rotatably arranged on the inner wall of an annealing kiln, wherein a plurality of boron nitride rings are fixedly sleeved on the outer side wall of each lift-up roller; a heat-resisting steel tubes is arranged on each of both sides of each lift-up roller; a plurality of exhaust holes are arranged on an outer side wall of the heat-resisting steel tube; the heat-resisting steel tube is in communication with an external hot gas supply case; and a plurality of cleaning assemblies used in cooperation with the lift-up rollers are arranged at the inner bottom of the annealing kiln.