Compared with chemical foaming, the foaming degree of a physically foamed coaxial cable can be significantly improved. Take PE as an example: the highest foaming degree achieved by chemical foaming is 50%, while the highest foaming degree achieved by physical foaming is 80%.
In the production of different coaxial cable products, the foaming degree generally achieved is also different. For example, for chemical foaming, the maximum foaming degree of the local telephone cable is 40%. For physical foaming, the maximum foaming degree of local telephone cables is 60%, the maximum foaming degree of data cables is 65%, and the maximum foaming degree of mini coaxial cables皇冠体育网 is 72% to 75%. The highest foaming degree of coaxial cable is 78%, and the highest foaming degree of radio frequency cable is 80%.
At the same time, the increase in foaming degree gives the physical foaming process more advantages, including increasing the signal transmission speed and transmission frequency, thereby further improving the performance of the product. Increase the speed of the production line, reduce the use of insulating materials, and the weight of the outer shielding copper material, thereby further reducing production costs.
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