{"id":30349,"date":"2024-11-08T15:37:34","date_gmt":"2024-11-08T07:37:34","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30349"},"modified":"2024-11-08T15:37:34","modified_gmt":"2024-11-08T07:37:34","slug":"clc0039","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/clc0039\/","title":{"rendered":"Introduction to the rolling process of small-size copper sheets"},"content":{"rendered":"

The production process of small-sized copper sheets requires a high degree of precision and cleanliness, and requires strict control of the rolling process and cleaning process to ensure product quality. The following is a detailed interpretation of the production process of small-sized copper sheets:<\/p>\n

1. Rolling process<\/strong><\/p>\n

The rolling of small-sized copper sheets is divided into three main steps: rough rolling, intermediate rolling and finish rolling, and each step requires different equipment and process conditions.<\/p>\n

Rough rolling: The copper billet with a thickness of about 15mm is reduced to about 3.0mm through several rolling processes. Emulsion is usually used as a coolant with a concentration controlled at 2-5% to provide appropriate lubrication and cooling effects. The focus of this stage is to control the rough processing shape and thickness.<\/p>\n

Medium rolling: The small copper sheet with a thickness of about 3.0 mm is further rolled to about 1.0 mm. Depending on the type of rolling mill, you can choose emulsion or rolling oil. When using emulsion, the rolling speed is slow (1-3 m\/s), which is suitable for simple processing needs; while using rolling oil can achieve a higher speed (6-8 m\/s), which helps to improve the surface quality and flatness of small copper sheets.<\/p>\n

Finish rolling: The small copper sheet with a thickness of about 1.0 mm is further rolled to about 0.5 mm. The viscosity of the rolling oil used is similar to that of the intermediate rolling stage, but a higher cooling effect is required. The process accuracy of this stage plays a key role in the smoothness and thickness uniformity of the final small copper sheet.<\/p>\n

2. Small size copper cleaning process<\/strong><\/p>\n

In order to ensure the cleanliness and surface finish of small-sized copper sheets, the cleaning process must thoroughly remove oil and impurities.<\/p>\n

Degreaser cleaning: Small-sized copper sheets are first cleaned with a degreaser to remove surface oil stains.<\/p>\n

Rinse with clean water: Rinse with clean water after initial cleaning to ensure that no degreaser residue remains.<\/p>\n

Pickling: Use an acid solution to remove the oxide layer.<\/p>\n

Passivation: Passivation treatment can prevent secondary oxidation of small-sized copper sheets and improve corrosion resistance.<\/p>\n

Drying: After cleaning, dry the small-sized copper sheet to ensure that no moisture remains.<\/p>\n

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