Avoiding Wire Scratches in Production of Steel-reinforced Aluminum Strand
2024-05-22
Steel core aluminum stranded wire is made of aluminum wire and steel wire stranded, suitable for overhead transmission lines. Specifications and models of ACSR: GB1179-83 GB1179-1999 LJ JL aluminum strand LGJ JL/G1A/JL/G2A/JL/G1B/JL/G2B/JL/G3A ACSR.
First from the conductor itself to consider:
First, it is guaranteed that the raw material of ACSR-aluminum rod cannot be affected with moisture. The aluminum rod is affected with moisture, which causes aluminum chips in the working area of the wire drawing die hole to stay, and lubricating oil cannot all enter the working area, thus causing the pulled aluminum wire to be unround and unsmooth.
Second, the drawing oil should be clean and free of moisture. Because in the drawing process, the drawing oil is in a high temperature state when it enters the working area from the lubrication area. If it contains a certain amount of moisture, the lubricating oil will be diluted and the lubrication effect will be greatly reduced, resulting in wire scratches and aluminum wire breakage.
Secondly, from the production considerations, should pay attention to the following issues:
In wire drawing process:
(1) Check whether the die of the wire drawing machine is placed accurately.
(2) Check whether the wire drawing drum wheel is grooved after friction and whether there is line pressing phenomenon;
(3) Check whether the surface finish of the lubrication area of the wire drawing die meets the requirements and whether there is any blockage of aluminum chips.
In the stranding process:
(1) Check the sensitive rotation of the wire reel center;
(2) Check whether the tension of the coil is uniform;
(3) Check whether the single line is slightly pressed or uneven;
(4) Check whether the single wire is in the groove of the guide wheel when twisting.
Key words:
Power fittings
Power equipment
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