What is the Definition of Paper Covered Flat Wire?

The insulation layer of the Paper Covered Flat Wire is the wire wrapped around the cable paper. The insulation of the paper-covered wire has at least 3 layers of wrapping paper tape. When more than 3 feet, the innermost layer and the outermost layer should be covered and wrapped, and the rest can be wrapped with a gap of no more than 2mm. When the width of the paper tape is 9.5 mm and above, the clearance does not exceed 3mm.

• What is the definition of Paper Covered Flat Wire?

• What is the workmanship of the Paper Covered Flat Wire?

• What are the performance characteristics of Paper Covered Flat Wire?

What is the definition of Paper Covered Flat Wire?

The  Paper Covered Flat Wire specification, allowable deviation and fillet radius r and its allowable deviation are the same as those of glass-covered wire. The insulation of the paper-covered wire has at least 3 layers of wrapping paper tape. When more than 3 feet, the innermost layer and the outermost layer should be covered and wrapped, and the rest can be wrapped with a gap of no more than 2mm. When the width of the paper tape is 9.5 mm and above, the clearance does not exceed 3mm. On the premise of ensuring the insulation thickness, the supplier and the buyer can negotiate.  Paper Covered Flat Wire can also be wrapped with other paper, such as polyamide fiber paper (Nomax). The paper wrapping depends on the insulation thickness of the paper wrapping flat wire and the wrapping pitch of the paper wrapping wire. Paper-wrapped stranded wire has been added to the standard being revised.

What is the workmanship of the Paper Covered Flat Wire?

The process flow of producing Paper Covered Flat Wire with black copper rod is as follows: round billet---flattening---reverberatory furnace annealing---pickling---drawing finished wire---bright fade. During the whole production process, due to the unstable quality of the black copper rod and the unpeeled, the surface of the finished wire will have defects such as peeling, thorn, triangle sun, etc., and there are many unqualified products and reworked products, which cannot meet the needs of customers. Require.

The improved process flow for producing Paper Covered Flat Wire with oxygen-free copper stalks is as follows: round billet---flattening---continuous drawing to finished flat wire---bright annealing. After switching to the current process of producing copper flat wire with oxygen-free rods and re-modifying the mold matching process, no unqualified phenomena such as cross-section cracks, triangular days, and burrs were found in the copper flat wire, and the product quality was improved and customers were satisfied.

What are the performance characteristics of Paper Covered Flat Wire?

1. The DC resistance of the Paper Covered Flat Wire should meet the regulations. The DC resistance of the paper-wrapped round aluminum wire is under consideration.

2. After the Paper Covered Flat Wire is wound, the paper insulation should not be cracked or exposed, and there should be no obvious warping. After the paper-wrapped flat wire is bent, the paper insulation should not be cracked or exposed, and there should be no obvious edges.

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