How to make the roasted blue of the toasted blue packaged steel belt

The colleagues who make baked blue strapping steel strips may all know how to make 'baked blue' through alkaline oxidation method, but when it is really done, great attention can be paid to the details, and strict control is a lot of small tricks. The common alkaline oxidation 'baked blue' technology has the following points:
　　 1. Before processing the baked blue, the metal surface must be cleaned or dried. Because if there are impurities, attachments, dust and other factors on the metal surface, it will directly affect the color and shape of the surface of the baking blue packaging steel belt.
　　 2. The treatment conditions of roasted blue should be reasonably proportioned to the carbon content in the metal: Under normal circumstances, the carbon content in the metal% Working temperature (℃) Treatment time (minutes) starts and ends> 0.7-0.7135 <0.4142-145 alloy steel 142-145
　　 Third, the relevant analysis solution used in the alkaline oxidation method 'baked blue' should be regularly replenished and replaced in time.
　　 Fourth, during the baking blue treatment period, rinse with hot soapy water for a few minutes, and then rinse with cold water. Then, rinse with hot water and blow dry.
　　Only by paying attention to the above four points, can we fully guarantee the fineness and quality of the baked blue strapping steel strip.