A kind of detection method of insulation roller to ground insulation
A detection method and a ground-to-ground insulation technology, applied in the field of hot-rolled steel strips, can solve the problem of not accurately detecting the ground-to-ground insulation of insulating rolls
Active Publication Date: 2021-06-15
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
However, there is currently no method to accurately detect the insulation of the insulating roller to the ground
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[0028] Below, the structure and working principle of the present invention will be further described in conjunction with the accompanying drawings.
[0029] see figure 1 and combine figure 2 , there is a section of insulating roller set on the roller table. The insulating roller set includes a plurality of insulating rollers 2. Since the strip steel 5 passes through the insulating rollers 2, arc burns are likely to occur. 2 to test the ground insulation. The detection method of a plurality of insulating rollers 2 is the same, and the insulating roller 2 located on the far right is taken as the detection object to specifically illustrate the detection method of the insulation roller to the ground insulation of the present invention, which includes:
[0030] Step 1, judge whether the head of strip steel 5 arrives on the insulation roller 2, if the head of strip steel 5 arrives on the insulation roller 2, then begin to detect the ground insulation resistance of insulation roll...
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The invention discloses a method for detecting the ground insulation of an insulating roller. A section of insulating roller group is arranged on the roller table, and the insulating roller group includes a plurality of insulating rollers, including step 1, judging whether the head of the strip steel reaches the insulating roller 1, if the head of the strip steel reaches the insulation roller, then start to detect the ground insulation resistance of the insulation roller; step 2, divide the strip steel into several detection sections along its length direction, and each detection section passes through the insulation roller During the process, the ground insulation resistance of the insulation roller is collected several times; step 3, the effective average value and fluctuation value of the ground insulation resistance measured for each detection section passing through the insulation roller are calculated, and the effective value is judged. Whether the average value is greater than the first set value, and whether the fluctuation value is less than the second set value. The ground insulation of the insulating roller can be detected in real time by adopting the method for detecting the ground insulation of the insulating roller.
Description
technical field [0001] The invention relates to the field of hot-rolled steel strips, in particular to a method for detecting the ground insulation of insulating rolls. Background technique [0002] In the process of hot-rolled strip steel, it is necessary to use edge heaters to heat the edge of the strip steel, so as to reduce the temperature difference between the front and back of the strip steel and improve the surface quality of the strip steel. According to the basic principle of electromagnetic induction heating, the idler rollers used to convey steel strips near the edge heater must use insulating rollers. The insulation resistance of the insulating rollers to the ground cannot be lower than a certain value. Once the insulation requirements cannot be met, the It will lead to the generation of electric arc during the heating process, which will cause arc burn on the surface of the strip steel, thus affecting the surface quality of the strip steel. However, in the act...
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IPC IPC(8): B21B38/00
CPCB21B38/00
Inventor 荣鸿伟郁华军夏宏斌潘宝恩范大弟
Owner BAOSHAN IRON & STEEL CO LTD