X-ray tubes - Import export

Traversing weight-per-unit-area gauge and tramp material detector Owners of Siempelkamp plants will nd a combination of two advantages in one EcoScan Neo gauge: a high-resolution analysis of the weight-per-unitarea distribution and a reliable tramp material detection. Measured data are collected simply and fast across the mat width and processed by the gauge ex prepress. Features MultiEnergy technology (automatic adjustment of the best x-ray energy) Compensation of forming belt inuences Two high speed traversing measuring heads for fast detection of weight variations in production direction No active cooling unit required (long life time of x-ray tubes) Automatic inline calibration during panel production Automatic compensation of sensor contaminations Automatic compensation of sensor temperature drifts Advantages The EcoScan NEO - FBD is able to detect smallest foreign bodies in a ber mat to prevent damages to the press belts.

Finding out the unrealized potential through the use of weight per unit area gauges One of the most vital factors in the production of wood panels is the constant spreading of material. If tolerances are exceeded, higher material and energy consumption are the consequences. MSX, which constantly moves back and forth across the mat before it enters the hot press, maintains tolerances within the optimum range. The result is homogeneous forming in lengthwise and crosswise directions. The enormous technical developments of “Weight per Unit Area Gauges” of the past years are physically not visible. What are the previous limitations of weight per unit area gauges? The x-ray tube needed a cooling device. This resulted in a reduced lifetime. Electronic Wood Systems developed a detector with extremely high sensitivity – probably unmatched in the world. Due to this new detector the net power could be reduced to a small portion of the permitted power.

The continuous non-contact Area-Weight Scale CONTI-SCALE X MULTIENERGY determines the panel weight and its distribution during production by measuring the area-weight and by taking the known panel dimensions into account. CONTI-SCALE X MULTIENERGY uses X-ray technology. Two X-ray tubes are located on a horizontal frame above the panel. The low energy X-ray beams are focused across the production width, but scan the full width of the panel. Metal plates on each side of the system prevent someone reaching inside the radiation area. There is no risk to human body parts which might stay beside/outside the system. The X-ray energy will be absorbed. Several detectors are lined up along the lower beam under the panel to measure (per track) the absorbed X-ray energy. This is how the area-weight is measured.