Abstract: A roller blind system for a sliding roof with at least one guide rail and with a roller blind with a roller blind fabric mounted on at least one guiding strip is provided, The guiding strip is sectionally guided in the guide rail and its end that is located outside the guide rail contracts to form a coil during a movement of the roller blind in opening direction, wherein at least one device for increasing the opening force of the roller blind is provided, which is designed and arranged such that the device produces an additional force at least in opening direction.

Abstract: In a process for soldering on large-area plates of aluminum or aluminum alloys on to a workpiece comprising an iron-base alloy, use is made of a soldering paste comprising a flux with about 50% potassium fluoride and about 50% aluminum fluoride, a solder powder with about 80 to 90% aluminum and 20 to 10% silicon and a binder on a polymethacrylate base. In addition the respective proportions of the flux are between 40 and 60% by weight, the solder powder between 60 and 40% by weight and the binder between 0.2 and 2% by weight.

Abstract: A wear-resistant layer on a component which is exposed to a high wear loading has a material mixture comprising at least one metallic material in powder form and a non-metallic oxide-dissolving fluxing agent in powder form which by the addition of a resin-like non-corroding stable binding agent is converted into a form which is applied to the component by being spread or laid thereon, and fused.