Why should cable lugs be tinned:

Why should ccable lugs be tinned:

       Tin forms a tin dioxide film in the air to prevent further oxidation. Tin and halogen can also form a film with similar effects. Therefore, it has good corrosion resistance, certain strength and hardness, good formability and easy welding. The tin layer is non-toxic and tasteless, can prevent iron from dissolving into the packaged object, and the surface is bright and beautiful.

       Tin plating the copper nose can prevent the copper from being oxidized when exposed to the air and forming a film - patina. Chemical formula CU2(OH)2CO3. Patina's poor conductivity increases resistance. In fact, tin plating is mainly to prevent copper from being oxidized. .

       Tin plating can effectively prevent the copper nose from getting patina due to moisture, and can also prevent the copper from oxidizing/sulfurizing and turning black, which affects the electrical contact.

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