How to determine the quality of electric heat tracing
There are many kinds of electric heat tracing products, and the quality and price are various. How to identify the quality and avoid the purchase of inferior products ? Refer to the following methods:
Heating cable with electrically conductive copper core: heating cable is a flat band, the conductive core wire is also directly related to the merits of a good bad heating cable, the conductive core wire is typically applied tin or nickel plated copper strands molding, when manufacturing In addition to selecting tinned copper wire of good quality , it is also necessary to consider the effect of the state of the outer surface of the conductive wire core on the heating of the electric heating zone. The selection of the wire diameter can not be used for cutting corners and materials, so this talent has been laid for the quality of the PTC core tape. Real roots.
Heating cable Starting current: PTC heating strip when the strip is a central portion of the heating cable, which is difficult to control the manufacturers general center technology, the key factor is the size and the rate of decline starting current, the starting current refers to power heating cable, generating an instant The peak value of the maximum current. It has a decisive significance for the quality of the electric heating zone and is a key parameter reflecting the degree of manufacturing technology in the electric heating zone. Assuming that the starting current is larger, the length of the tropical power supply of a single power supply will be shortened correspondingly, and at the same time, the electrical contact interface between the PTC layer and the conductive wire core will be destroyed and the service life of the solar heat cable will be shortened. Great security risks.
Fiber Laser Cutting Machine With Safety Cover
Laser cutting is applied to metal materials such as mild steel, stainless steel, aluminum alloy, pickling plate, galvanized sheet, silicon steel plate, electrolytic plate, titanium alloy, manganese alloy. The laser cutting can process with a thickness range of 0.5-40mm Mild steel, 0.5-40mm Stainless steel, 0.5-40mm Aluminum, 0.5-8mm Copper.
Laser cutting is a sheet metal processing that laser beam radars on the processing material. Laser cutting works by directing the output of a high-power laser most commonly through optics. The laser beam can be divided into solid state and un-solid state
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