Bluing clad steel belt of bluing in brief

Bluing clad steel belt of the bluing, actually is to use chemicals such as sodium nitrate to metal surface oxidation at high temperature for oxide, form more resistant to corrosion protective layer. According to the different (of metal material Carbon steel, stainless steel, aluminum alloy) , chemicals, construction procedure of different ( The temperature control and prior sandblasting processing, etc. ) Can produce different colors, the most common is very close to the black deep black. Bluing can prevent steel rust. Guns are mostly through bluing. May be put in the water and protect gas ( Such as nitrogen) Bluing just parts of wetting with water after burn, pay attention to the water is pure best if they are not pure can appear markings, such as steel polishing article according to the ends of his best buy a few pieces of fine waterproof abrasive paper, in the direction of a polishing after dip in water, don't reciprocating grinding, and be patient, the strength should be modest and even on the fire roast temperature not too high, discoloration, or magazine will annealing, on the gas furnace baking can also, but not pure gas is easy to change color again. Color is to burn the color of iron into boiling thick liquid soap bubble 10 minutes, ( Saponification) The last dip hot oil can.