The difference between rolled copper and electrolytic copper

Time:2022-11-09


                                                                                                          What are the differences between rolled copper and electrolytic copper?
1、 The difference in usage between rolled copper and electrolytic copper:
1. Application of Rolled Copper: Rolled copper is mainly used for cameras in flip phones.
2. Application of electrolytic copper: Electrolytic copper is mainly used for manufacturing printed circuit boards.


2、 Color difference between rolled copper and electrolytic copper:
1. Rolled copper color: Rolled copper tends to be yellowish.
2. Electrolytic copper color: Electrolytic copper turns red.



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3、 The difference in production processes between rolled copper and electrolytic copper:
1. Rolling copper production process: Rolling copper is produced by coating. Rolled copper is made by rolling copper ingots and then undergoing processes such as forging, oxidation resistance, and roughening. Compared to electrolytic copper, the production of rolled copper is relatively difficult, and there are currently only three companies in the world that can produce large quantities (according to relevant reports), with good ductility of over 30%.
2. Electrolytic copper production process: Electrolysis is accomplished through electroplating technology. Electrolytic copper is produced by precipitating copper ions from a copper sulfate solution using an electric current, followed by processes such as antioxidant and roughening treatment. The best SHTE type for electrolytic copper is only 15% -20%, mainly used in areas that require shielding such as FPC, laptops, tablets, printers, etc.
4、 Differences in quality and usage between rolled copper and electrolytic copper:
1. Quality and use of rolled copper: Rolled copper is obtained by extruding copper foil, which is characterized by good bending resistance but weaker conductivity than electrolytic copper. It is mainly used for flip phones and cameras. From the appearance, electrolytic copper turns red and rolled copper turns yellow
2. Quality and use of electrolytic copper: As the name suggests, electrolytic copper is formed by adsorbing copper ions onto a substrate through electrolysis to form copper foil. Therefore, its characteristics are strong conductivity but relatively weak bending resistance
5、 The difference in performance between rolled copper and electrolytic copper:
1. Rolled copper performance: Rolled copper has better flexibility, and is generally used for products with bending requirements.
2. Electrolytic copper performance: Electrolytic copper has better conductivity
6、 The price difference between rolled copper and electrolytic copper: The unit price of rolled copper is higher than that of electrolytic copper.
7、 The difference in molecular density between rolled copper and electrolytic copper: Electrolytic copper molecules are relatively loose and prone to breakage; Rolled copper molecules are tightly packed and have good flexibility, the thinner the better the flexibility; Phosphorus containing rolled copper molecules are delicate, and the post-treatment electroplating appears bright, but its flexibility is inferior to pure rolled copper.
8、 The difference in crystal structure between rolled copper and electrolytic copper is that they are vertically arranged and stacked.