Fluoroplastic Insulated Cables Use Physical Foaming Technology

时间： 2023-10-31 来源：Futureway News

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In order to meet the requirements of fire resistance and transmission performance, it is necessary to use physical foaming technology for Fluoroplastic insulation, and the higher the foaming degree, the smaller the cable core wire can be made, the less the material, the better the transmission performance, and the earliest The fluoroplastic foaming equipment of the company should be Swiss Myrafel Company. Since 1995, it has developed and successfully designed a series of new patented technologies and corresponding equipment through cooperation with the famous fluoroplastics DuPont in the United States. The core insulation foaming degree has successfully reached about 65% from the original 50% in one fell swoop. Production practice has proved that the effect of saving materials is very significant. In order to meet the increasing safety performance requirements, the range of fluoroplastic materials is also expanding, and more and more materials with superior fire resistance have emerged, such as PFA, ETFE and other fluoroplastics. It can meet the requirements of various cable core manufacturing and different temperature resistance grades. Like many cable equipment, domestic fluoroplastic extrusion equipment has developed rapidly in recent years. The equipment of Swiss Mai Raphael is expensive and the maintenance is not Improvement has already discouraged many thoughtful cable companies.

To meet the aforementioned high-performance cable manufacturing requirements, whether it is the insulating material itself or the wire extrusion process, it is a newer challenge. First, in the extrusion and melting process of the foamed material, it is required that the nitrogen gas is as finely integrated into the insulating material as possible In this area, the problem in this area is to improve the foaming degree and stability of the material under the premise of meeting the very small foaming pore size and meeting sufficient mechanical strength. Secondly, the problem in the second area is that after the core wire is extruded How to ensure the best production speed and stability performance, the follow-up equipment design of all insulation processes is to achieve the highest production speed under the premise of ensuring the best product performance after extrusion. Product performance includes concentricity, static capacitance, and ellipse In order to ensure the yield rate during high-speed production, that is, to maintain the above-mentioned properties of the product, the tension during production must be kept as small as possible, and in order to ensure the high-speed production rate, the smoothness of the outer skin, the elongation of the product and the adhesion between the conductor and the insulation. The tension produced at high speed must also be very stable. Similarly, for such a high-tech production line, the high yield rate of its production is also the main concern when designing. We have noticed that in the normal production process, the production line must be automatically adjusted and controlled without process experts on-site for process adjustment and process guidance to achieve the best performance. Therefore, equipment manufacturers must be required to continuously improve, make the repeatability of the production line good enough, shorten the start-up as much as possible, and reduce the final rejection rate.

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本文由洛希转载自Futureway News，原文标题为:Fluoroplastic insulated cables use physical foaming technology，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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