OEM Copper CNC Machining Parts

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1. Look at the appearance of the wire

This includes the packaging of the wire and the appearance of the insulation layer of the wire.

All the parameters, certificates and standards of the wire are shown on the package. Then look at the insulation label of the wire. There should be a clear label on the outside of the insulation layer, including the label of the manufacturer, the model of the wire diameter, and so on.

All the blurring marks on the wires are definitely not a qualified product.

2. Look at the wire diameter

Check the copper core, also known as the wire core. Because a wire quality stand or fall actually has 2 points, it is insulating layer, 2 it is the wire core.

We can peel off a section of the wire until the copper is exposed. If we find that the copper wire is purple, the quality is good; In addition, we can also use the hand to bend copper wire, if you feel soft, it shows that this is a good wire. In turn, we found that the copper wire is yellow, so it is brass, and there are other impurities inside, the quality is not good;

In addition, when we go to bend the copper wire, if we feel that the copper wire is very hard, then this kind of wire is a poor quality wire.

3. Detect resistance performance

This wire is required to be flame retardant, fire resistance is very high,

Take a piece of string, and then we use a lighter to light it, and then we put out the lighter. At this point, we will observe whether the insulation layer of this wire will automatically go out. If it goes out, it means that it is flame retardant and qualified. If it does not go out, it is a substandard product.

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OEM Copper CNC Machining Parts

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