How is brass strip made?

1. Embryo preparation: According to the predetermined production target, adding unequal amounts of zinc blocks to copper waste materials to produce copper raw materials of different specifications.

2. Testing: In order to ensure the production of both qualified and economic benefits of the finished product, the accuracy of the test results is particularly important. It is the responsibility of the laboratory to inform the furnace master quickly and accurately of the test results based on the copper blocks submitted

3. Cut; The complete copper strip is pulled by the hanging rope, placed smoothly on the special cutting table, cut off by the cutting wheel saw, and polished smooth by the copper strip face washing machine, which is conducive to the flatness and smoothness of the surface of the brass strip produced in the later processing.4. Hot rolling: the cut copper strip is heated at 1000℃, then hot rolled, and pressed into a brass belt with a thickness of about 2.3cm.

5. Washing: each copper block after the first rolling step D down, due to the existence of surface impurities, in order to avoid affecting the quality of the furnace must be again through the sealing furnace washing procedure. The washing area is divided into two pools according to the acidity. The high concentration is 6-8 degrees, and the low concentration is 3-5 degrees. The medium red patches produced on the surface of the brass strip can be washed off by the acid solution of the water washing pool, while the dark red patches are removed by the iron fine wool pair during the water washing. After this series of treatment methods, the copper strip obviously shines with its own luster. If red plaques and red plaques still exist during rolling, it is necessary to repeat the washing step. During washing, the acidity in the pool should be checked regularly, and acid should be added in time to avoid insufficient washing due to low acid content.

6. Rolling plate: rolling plate area is divided into 180 first rolling, 110 middle rolling. According to the size of various spokes, the hot rolled brass strip, which has been burned in the sealing furnace, is processed from rough to fine through the above two steps.