Mineral insulation signal cable and method for manufacturing the same
A signal cable, mineral insulation technology, used in insulated cables, cable/conductor manufacturing, communication cables, etc., can solve problems such as loss of life and property, and achieve the effect of improving moisture absorption, scientific and reasonable structure, and good performance.
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[0019] After the copper strip is cleaned and dried, the copper strip is longitudinally wrapped into a tube shape, and the edge of the copper strip is argon-arc-welded under the protection of argon gas to form a seamless copper sheath 3 at a welding speed of 2m / min. The high-purity magnesium oxide powder is prepared by calcining the magnesium oxide powder at a high temperature to remove impurities and evenly adding 0.06% to 0.08% of silicon oil (polydimethylsiloxane) by weight. The copper wire core stranded by copper wire is used as the conductor 1, and the stranded copper wire core conductor 1 enters the central part of the seamless copper sheath 3 through a fixed pipe (flowing into the centering pipe). A filling machine is used to fill high-purity magnesium oxide powder insulation 2 in the gap around the twisted copper core conductor 1 in the seamless copper sheath 3 to make a semi-finished cable. The outlet of the pipe is set under the weld, and the magnesium oxide powder is...
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