Disclosed are a device and method for detecting heating treatment temperatures of double steel wires. The temperature detection device includes a double wires coiling machine, two heating mechanisms for respectively heating two steel wires, and two temperature detection mechanisms for respectively detecting temperatures of the two steel wires in real time, and a controller electrically connected to the two heating mechanisms and the double-wire spring coiling machine respectively.

Disclosed are a device and method for detecting heating treatment temperatures of double steel wires. The temperature detection device includes a double wires coiling machine, two heating mechanisms for respectively heating two steel wires, and two temperature detection mechanisms for respectively detecting temperatures of the two steel wires in real time, and a controller electrically connected to the two heating mechanisms and the double-wire spring coiling machine respectively.

A scale composition determination device (10) determines that Fe.sub.2O.sub.3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe.sub.2O.sub.3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.

A scale composition determination device (10) determines that Fe.sub.2O.sub.3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe.sub.2O.sub.3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.

A method for marking a wordpieces and workpiece are disclosed. In an embodiment the method includes applying an identification to a blank in places and after applying the identification to the blank, deforming the blank to form a metal body, wherein deforming the blank comprises rolling so that a thickness of the blank changes more strongly than a width of the blank when the metal body is formed, wherein the identification remains on the metal body at least until after deforming the blank and is not destroyed by deforming the blank, and wherein the identification, both to the blank and to the metal body, has at least one of a difference in reflection or a difference in remission and an albedo difference of at least 15 percentage points in at least part of at least one of a near ultraviolet spectral region, a visible spectral region or a near-infrared spectral region.

The invention relates to an apparatus for sampling rolled metal strips wound up into a coil (1), in particular in the thickness range of >12 mm, comprising a coil rotator and an apparatus (6) for separating the sample from the metal strip (4), characterized in that the coil rotator has at least two rotatable supports (2, 3), preferably trough rollers arranged in a lower quadrant of the coil (1) lying on the coil rotator, and also an outer guide (5) for the metal strip, the outer guide (5) extending angularly around the coil (1) by more than 180° in a region downstream of the downstream support (3) in an unwinding direction of the metal strip and is provided with means (7) for reducing friction of the metal strip on an inner surface of the outer guide (5). Furthermore, the invention relates to a method of sampling rolled metal strips wound up into a coil (1), in particular in the thickness range of >12 mm, with a coil rotator and an apparatus (6) for separating the sample from the metal strip, preferably by an apparatus according to the invention.

The invention relates to an apparatus for sampling rolled metal strips wound up into a coil (1), in particular in the thickness range of >12 mm, comprising a coil rotator and an apparatus (6) for separating the sample from the metal strip (4), characterized in that the coil rotator has at least two rotatable supports (2, 3), preferably trough rollers arranged in a lower quadrant of the coil (1) lying on the coil rotator, and also an outer guide (5) for the metal strip, the outer guide (5) extending angularly around the coil (1) by more than 180° in a region downstream of the downstream support (3) in an unwinding direction of the metal strip and is provided with means (7) for reducing friction of the metal strip on an inner surface of the outer guide (5). Furthermore, the invention relates to a method of sampling rolled metal strips wound up into a coil (1), in particular in the thickness range of >12 mm, with a coil rotator and an apparatus (6) for separating the sample from the metal strip, preferably by an apparatus according to the invention.

A machine tool for processing workpieces, in particular metal sheets, has a punching device and a laser processing device. The punching device comprises a punch-side positioning device by means of which a punching tool component of a punching tool can be positioned in a definable position along an operating stroke axis of the punching device. The laser processing device has a laser processing unit and a laser accessory unit. The laser accessory unit can be positioned by means of an accessory unit positioning device with an activation movement in an operating position which can be defined by means of the punch-side positioning device. In the context of a method for processing workpieces, in particular metal sheets, which method is carried out using the above machine tool, the operating position of the laser accessory unit is defined by means of the punch-side positioning device.

A straddle-type steel section processing device of multiple saddles is disclosed, which comprises: a machine unit, a holding unit, a Z-axis direction processing unit, a pair of Y-axis direction processing units, a Y-axis direction guiderail unit and a Y-axis direction driving unit. In an embodiment, the Y-axis direction processing units are arranged respectively at the two sides of the Z-axis direction processing unit while allowing each to slide in a Y-axis direction as each Y-axis direction processing unit is further being mounted on a crossbeam of a base fitted on the machine unit. By sildably mounting the side saddles of the Y-axis direction processing unit on an end surface of the crossbeam, not only a desire condition of stable positioning can be achieved, but also the processing accuracy is enhanced.

A straddle-type steel section processing device of multiple saddles is disclosed, which comprises: a machine unit, a holding unit, a Z-axis direction processing unit, a pair of Y-axis direction processing units, a Y-axis direction guiderail unit and a Y-axis direction driving unit. In an embodiment, the Y-axis direction processing units are arranged respectively at the two sides of the Z-axis direction processing unit while allowing each to slide in a Y-axis direction as each Y-axis direction processing unit is further being mounted on a crossbeam of a base fitted on the machine unit. By sildably mounting the side saddles of the Y-axis direction processing unit on an end surface of the crossbeam, not only a desire condition of stable positioning can be achieved, but also the processing accuracy is enhanced.