Abstract: A method for lubricating rolls, especially work rolls (2, 3) of a rolling stand, and rolling stock (6) passed between the rolls during the rolling operation, in which a lubricant-gas mixture, a lubricant-water-gas mixture, a lubricant-water mixture and/or a grease-medium mixture is applied to the rolls (2, 3) or the rolling stock (6) on the run-in side of the rolling stand, is characterized by the fact that the mixture is prepared with at least one mixing device (14, 17, 27, 29, 31, 35) in the area upstream of the rolling stand.

Abstract: The invention relates to a method for the surface inspection of strip pieces (120). The invention further relates to a device for carrying out the method. The method according to the invention comprises the following steps: cutting off the strip pieces (120) from a metal strip (210), wherein the strip pieces (120) comprise a length less than twice the circumference of a work roll (230) by means of which the metal strip (210) has previously been rolled; automatically checking the upper and/or lower side of the cut-off strip pieces (120) with the aid of a camera system (150) and an analysis unit (300) in regard to any periodic types of faults that may be present and caused by the work roll; ending the surface inspection process if periodically occurring types of faults are detected, or; feeding the cut-off strip pieces (120) to a strip inspection unit (140) for checking by means of inspection personnel for non-periodic types of faults if no periodic types of faults had previously been detected.

Abstract: A method for lubricating rolls, especially work rolls of a rolling stand, and rolling stock passed between the rolls during the rolling operation, in which a lubricant-gas mixture, a lubricant-water-gas mixture, a lubricant-water mixture and/or a grease-medium mixture is applied to the rolls or the rolling stock on the run-in side of the rolling stand, wherein the mixture is prepared with at least one mixing device in the area upstream of the rolling stand.

Abstract: The invention relates to a method for the surface inspection of strip pieces (120). The invention further relates to a device for carrying out the method. The method according to the invention comprises the following steps: cutting off the strip pieces (120) from a metal strip (210), wherein the strip pieces (120) comprise a length less than twice the circumference of a work roll (230) by means of which the metal strip (210) has previously been rolled; automatically checking the upper and/or lower side of the cut-off strip pieces (120) with the aid of a camera system (150) and an analysis unit (300) in regard to any periodic types of faults that may be present and caused by the work roll; ending the surface inspection process if periodically occurring types of faults are detected, or; feeding the cut-off strip pieces (120) to a strip inspection unit (140) for checking by means of inspection personnel for non-periodic types of faults if no periodic types of faults had previously been detected.

Abstract: The invention relates to a cooling device (100) for cooling a metal strip (200) after a forming in a cold rolling stand (200) having at least one nozzle (112) for spraying a cooling medium (400) onto the surface of the metal strip (200). In order to make such known cooling device more effective and efficient, it is proposed according to the invention to provide a plate (500), which in an operating position is arranged parallel to the surface of the metal strip (200) in the run-out of the cold rolling stand (300,) and to arrange the nozzle in the operation position in such a manner that the cooling medium is sprayed at an acute spray angle ? into a cavity between the surface of the metal strip and the opposing plate, with a spray direction (R) opposite to the running direction (L) of the metal strip.

Abstract: The invention concerns a rolling stand, a rolling train, and a method for rolling a stepped preprofiled metal strip. In order to guarantee that the metal strip is free of waviness in its longitudinal direction, even after individual thickness reduction of the steps, the invention proposes that the thickness reduction be carried out on a step-specific basis according to the following mathematical relationship: ?hi/hi=?hi+1/hi+1=?=constant, where ?hi represents the amount of the thickness reduction in the region of the i-th step, and hi represents the value of the resulting thickness of the metal strip 200 after rolling in the region of the i-th step.

Abstract: The invention relates to a roll stand and a method for rolling a rolled strip. The roll stand (100) comprises at least one roller housing on the drive side (AS) and one roller housing on the control side (BS) of the roll stand. It also comprises bending devices which are each firmly connected to spars (2) of the roll stands for treating and bending an upper and/or lower work roller of the roll stand (100) relative to the roller housings. The bending devices and thus the work rollers are controlled via a control device. To be able to control or regulate the bending devices and/or work rollers more precisely, and thus to improve the quality of the rolled strip after rolling, it is suggested according to the invention that a bending force strain gauge be placed appropriately for direct measurement of the actual bending force affecting the work rollers (7, 8) via the bending devices (11).

Abstract: In a shaping process a metal strip is passed in a rolling direction through shaping rolls and a layer of treatment liquid is applied to a surface of the strip upstream of the shaping rolls. Measurement variables of the liquid on the surface are analyzed by laser-induced, time resolved fluorescent spectroscopic analysis or spectroscopic analysis in the infrared band.

Abstract: A thermally resistant fiber glass includes at least SiO2, Al2O3, and TiO2.

Abstract: A production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefore, the melt is cast into a copper strip in a vertical and/or horizontal continuous strip casting process, and the hot copper strip is cleaned by milling the top and bottom face thereof, is subjected to a cold rolling process, and is prepared for shipping, or is subjected to an inspection and then prepared for shipping after being annealed, pickled, washed, dried, and optionally temper rolled.

Abstract: The invention relates to a method for lubricating and cooling rollers (3,4,5,6) and metal strips (2) on rolling in particular, on cold rolling of metal strips (2), wherein, on the inlet side (7a) a minimal amount of pure lubricant (9) without a high water content is continuously supplied in an online controlled manner with a controlled viscosity and lubricity depending on a number of process data measurements (23) by means of a physical computer model (22) and the equivalent process data measurements (23) from the outlet side (8a) are also used online by the physical computer model (22).

Abstract: A method for lubricating rolls, especially work rolls (2, 3) of a rolling stand, and rolling stock (6) passed between the rolls during the rolling operation, in which a lubricant-gas mixture, a lubricant-water-gas mixture, a lubricant-water mixture and/or a grease-medium mixture is applied to the rolls (2, 3) or the rolling stock (6) on the run-in side of the rolling stand, is characterized by the fact that the mixture is prepared with at least one mixing device (14, 17, 27, 29, 31, 35) in the area upstream of the rolling stand.

Abstract: The invention relates to a rolling device (1) comprising at least two working rollers (2, 3) and a roll gap (4) between the working rollers (2, 3) for guiding through and rolling a rolling stock (5) such as, for example, a strip (6) preferably of metal and optionally an arrangement of support rollers (7, 8), wherein furthermore at least one measuring device (11) is provided for measuring a backslip of the rolling material of the rolling stock in front of the roll gap (4), wherein furthermore a control or regulating unit (13) is provided which drives control members for adjusting the flatness of the rolling stock on the basis of the signals of the measuring device (11).

Abstract: An aqueous sizing is provided for treating glass fibers, in particular for producing roving fibers, glass staple fibers and cut reinforcing fibers in a thermally and chemically resistant glass, and also to glass fibers coated with the sizing. The sizing protects the glass fibers against scuffing and thus from mechanical damage.

Abstract: The invention relates to a cooling device (100) for cooling a metal strip (200) after a forming in a cold rolling stand (200) having at least one nozzle (112) for spraying a cooling medium (400) onto the surface of the metal strip (200). In order to make such known cooling device more effective and efficient, it is proposed according to the invention to provide a plate (500), which in an operating position is arranged parallel to the surface of the metal strip (200) in the run-out of the cold rolling stand (300,) and to arrange the nozzle in the operation position in such a manner that the cooling medium is sprayed at an acute spray angle ? into a cavity between the surface of the metal strip and the opposing plate, with a spray direction (R) opposite to the running direction (L) of the metal strip.

Abstract: A method and a lubricant application device for regulating the flatness and/or roughness of a metal strip in the outlet of a cold rolling stand by suitable metering of the amount of at least one lubricant per unit time applied to the metal strip in the inlet of the cold rolling stand. The applied amount of lubricant is metered in the form of a quantitative distribution over the width of the metal strip per unit time according to a detected control deviation between an actual and a desired flatness distribution over the width of the metal strip in the outlet of the cold rolling stand or a control deviation between an actual and a desired roughness distribution over the width of the metal strip in the outlet of the cold rolling stand or a combination of the two control deviations.

Abstract: In a method of cooling and/or lubricating of rolls and/or rolling stock according to which a cooling medium is applied to the rolls from a plurality of nozzles/nozzle rows, on one hand, and for lubrication, on the other hand, base oil is applied to the rolling stock in front of a roll gap, wherein the nozzles/nozzle rows are adjusted separately and independent from each other the cooling medium is applied to the rolls separately from the base oil, and finally, the base oil without water as a base medium is applied directly to the rolling stock over an entire width thereof in a very small amount in comparison with a conventional amount. To this end, media separating means is arranged between the nozzles/nozzle rows for applying cooling medium to the rolls and the nozzles/nozzle rows for applying base oil to the rolling stock.

Abstract: An aqueous sizing for treating R-glass, E-glass, and ECR-glass fibers. The sizing contains a multi-component film former, a lubricant, and an adhesive. The multi-component film former includes polyvinyl acetate, polyvinyl alcohol polyether, and polyamidoamide. An aqueous sizing for producing roving fibers includes polyvinylacetate ethylene copolymer, polyamidoamide, polyvinyl alcohol polyether mixture, polypropylene or polyethylene polytetrafluorethylene wax, a coupling agent, and water.

Abstract: The invention relates to a method for lubricating and cooling rollers (3,4,5,6) and metal strips (2) on rolling in particular, on cold rolling of metal strips (2), wherein, on the inlet side (7a) a minimal amount of pure lubricant (9) without a high water content is continuously supplied in an online controlled manner with a controlled viscosity and lubricity depending on a number of process data measurements (23) by means of a physical computer model (22) and the equivalent process data measurements (23) from the outlet side (8a) are also used online by the physical computer model (22).

Abstract: The invention relates to a method for analyzing a layer of a metal working compound (50) on the surface of a product to be shaped (40), especially of a metal strip, before and/or after a shaping process, especially a rolling process, for various measuring variables. According to the invention, analysis of the metal working compound (50) is carried out by way of spectroscopic analysis. The invention also relates to a method for carrying out the method according to the invention.