Method of steel wire annealing furnace (1)

1. Install a plate of steel wire and cover the tank lid,Seal the mouth tank cap with sand, then cover the furnace cover .

2. The tank heated up to 870 degrees, about 3 hours, and high temperature for 60-120 minutes, take out the steel wire with furnace cooling to 100 degrees , A furnace occurred in about 48 hours. You must not cool down quickly and high-temperature take out steel wire.