Radial Coating Technology And Process For Pre-twisted Wire

In the power and communications fields, radial coating of armor rod preformed is one of the core technologies for improving conductor performance. Radial coating treatment improves the conductor's contact adaptability with the external environment by forming a uniform layer on the preformed armour rod surface. Strict requirements are placed on tension, coating thickness, and wire diameter matching during operation, as these parameters directly affect the mechanical stability and dimensional accuracy of the armor rods.

Radial Coating Process Flow

Radial coating of pre-stranded wire involves multiple steps:

• Surface Treatment: Removing minute oxides from the metal surface using mechanical or chemical methods to provide a good adhesion surface for the coating material.

• Coating operation: Use a rotating or stretching device to evenly apply the coating material to each armor rods for acsr, and the coating thickness must be consistent.

• Curing Treatment: Fixing the coating through heat treatment or chemical reaction to form a stable bond with the pre-stranded wire.

Each step directly affects the surface uniformity and overall structural integrity of the pre-stranded wire.

Radial Coating Parameter Control

Controlling the quality of radial coating can be broken down into several aspects:

• Tension Adjustment: Monitoring tension during winding and stretching to avoid excessive local stretching. Temperature Management: The fluidity of the coating material changes with temperature; abnormal temperatures can lead to uneven coating thickness.

• Speed ​​Coordination: Matching the coating speed with the rotation speed directly affects the uniformity of coating coverage.

By controlling tension, temperature, and speed in a coordinated manner, the armor rods transmission line surface layer can be kept continuous and uniform.