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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

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BuyFindarrow_forward

Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
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What indicates that you have overheated the solder flux on copper?

To determine

The indication of overheated solder flux on copper.

Explanation

When the flux reaches its effective temperature, the oxide layer can be removed by the flux. Before welding it is to be make sure that there is no paint, dirt or oil on the surface.

If the oxide layer on the work is blue black in color, it is not to be removed. The flux on the copper is applied and the work is heated up with the help of the torch.

With continued heating, the flux becomes active and it suddenly changes to bright coppery color.

With continued heating, the flux is burned off and the clean spot suddenly develops the oxide layer.

The metal which is made by combining two or more metallic elements, or one metallic element and one non-metallic element...

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