La differenza tra laminatoio e trafilatura (estrusione)

1. Stable dimensional control: with Redex rolling mill, the deviation of rolled flat copper wire can generally be controlled within ±0.005mm;
internal use
Product deviation of mold production: thickness ±0.01mm, width ±0.02mm.
The above advantages ensure that the cross-section of each wire in the enameled flat copper wire tends to be in the same state, so that the resistance balance rate can be effectively obtained.
effective control.
2. The shape of the flat copper wire is standardized, the surface is flat, and the wire body is straight, which overcomes the arc generated by the drawing process, and is suitable for painting.
Uniformity creates the conditions.

3 The whole production process carries out on-line detection and automatic recording of the size, thus ensuring the stability of product quality.

4. The flat wire drawn by the wire drawing machine is observed with normal vision and the surface is bright and the color is uniform; while the wire rolled by the rolling mill is observed in the same way
The surface is in a matte state, and the color varies. However, when the two are magnified 1600 times, the surface of the drawing wire has obvious
Defects, the surface of the rolling line has regular fish scales, the roughness is uniform, and it is compacted. For the subsequent painting process,
The adhesion of the paint film of the rolling line is obviously better than that of the drawing line, or the extrusion line. This can also be verified from the number of complaints from the wire factory to the paint factory in recent years. The number of complaints about the adhesion of insulating paint by domestic joint venture manufacturers are far lower than other non-rolled copper flat wire
manufacturer.

To sum up, due to the use of rolling production technology, at the same time, the advanced rolling mill is no matter the accuracy, shape,
The surface quality and uniformity are far better than wire drawing (extrusion), but the high equipment price also limits its wide application