steel sheet and coil not properly zinced called over zinc, how can i remove zinc by any heating treatment,?

Answer 1

If the zinc is in the form of an external coating applied to the base material, then an acid wash is required to remove the coating.

If the zinc is 'mixed in' with the other metal alloys to form the sheet, then heat treating won't remove it (nor will an acid treatment). You'd basically have to scrap the material or find a use for the new material (after defining it's relevant strength/magnetic properties).

If you scrap it - I suggest you remelt it and separate material for re-use in your process ... this way, you might save some money on raw material costs.

Answer 2

The most common way to remove zinc plating is by washing with an acid. Painters use simple vinegar to prep the metal. Rinse thoroughly after

Answer 3

Grind the section the place you will weld, use good suction ventilation around your welding section and exhaust the fumes via a moist textile sack. this could desire to offer a good rather sparkling weld. the main subject with welding on galvanized textile is the fumes from the zinc and the spatter for the duration of the weld which creates grotesque susceptible spots interior the weld. wish this facilitates. we've welded many galvanized products of steel interior the shipyards for years.