Low loss self-adhesive stranded direct welding insulated stranded wire Wireless charger insulated wire

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The stranded wire is realized by the uniform angular speed rotation of the stranded single wire around the stranded wire axis and the uniform forward movement of the stranded wire. Copper and aluminum wires are commonly used. Copper and aluminum wires can be twisted into wire cores of different specifications, sections and types of wires and cables. It is suitable for occasions with high working frequency and excessive skin effect and proximity effect loss of single strand wire. The use of stranded wire can reduce the operating temperature. Compared with single stranded wire with the same cross-sectional area, the stranded wire has higher mechanical property and flexibility

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Strand structure

Different types of stranded wire have similarities and differences in use, material, structure, soft and hard as well as appearance (see Table 2-1). Bare wires can be divided into overhead stranded wire, flexible stranded wire and special stranded wire. Stranded core can be classified into round core and profiled core

Concentric layer stranding This is the basic structure of stranded wire Z. The single wires forming the stranded wire are orderly twisted around the center of the stranded wire layer by layer, and the adjacent twisted layers are twisted in opposite directions. The center of the stranded wire can be composed of a single wire or several single wires. Z is usually a single round wire. Concentric layer stranding is also known as normal stranding, which has the advantages of stable structure, easy expression of geometric dimensions, and low material utilization coefficient

Although the single wires forming the strand are also twisted around the center of the strand, the twisted direction of each single wire is the same, so it is difficult to separate layers, and the single wires are not arranged in order. This structure is often used for the stranding of thin single wires with a large number of wires. It is called bundle wire that is made by means of bundle stranding. Stranding is also called bunching or irregular stranding. Its advantages are good flexibility, high material utilization coefficient, and its disadvantages are irregular structure and difficult to express geometric dimensions


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