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What does bright annealing mean? What is the function of copper tube continuous bright annealing furnace?

by:Kehua     2022-08-03
Annealing is an indispensable process in metal smelting. For different metal materials, the annealing methods used are also very different. Next, Kehua will introduce to you what bright annealing means, and what is the function of copper tube continuous bright annealing furnace? What does bright annealing mean in copper tube continuous bright annealing furnace? If the airtight space is slowly cooled below 500 degrees and then cooled naturally, it will have brilliance and will not cause decarbonization. Kehua believes that oxidation and decarburization occur during heating and cooling during ordinary annealing, so the additional processing of heat-treated steel increases the loss and cost of metal, so bright annealing is often used. What is the function of copper tube continuous bright annealing furnace? 1. Eliminate work hardening and obtain satisfactory metallographic structure. When the performance requirements are different, the requirements for the metallographic structure after bright annealing are different, and the process of bright heat treatment is also different. 2. Obtain an oxidation-free bright surface with good corrosion resistance. Since bright annealing is a heat treatment of strip steel in a mixed gas protective atmosphere of hydrogen and nitrogen, a bright surface without oxidation is obtained by strictly controlling the protective atmosphere in the furnace, especially the purity, residual oxygen and dew point. Compared with the surface obtained by ordinary annealing and pickling, since there is no oxidation process, the phenomenon of poor chromium on the surface of the strip is reduced, and its corrosion resistance is better than that of the 2B plate after polishing. 3. Bright treatment maintains the smoothness of the rolling surface, and a bright surface can be obtained without post-processing. After bright annealing, the surface of the steel strip retains the original metallic luster, and a bright surface close to the mirror surface has been obtained. Under general requirements, the surface can be directly used without processing. 4. Strip steel with special rolling pattern surface can be developed. Since the surface of the steel strip is not changed during the annealing process, the rolling surface pattern can be completely retained, and the cold-rolled special pattern strip can be easily developed. When annealing copper parts, most of the copper tube continuous bright annealing furnaces are used. This annealing furnace can increase the toughness of copper parts, thereby prolonging the service life of copper parts.
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