What’s the difference between DC and CC? DC and CC generally refer to aluminum plate or coil manufacturing processes. But they are also different. DC can cover all aluminum alloy series, such as 3000 series, 5000 series, 2000 series, 7000 series, etc.CC can generally only produce 1000 series pure aluminum and a few 3000 series alloy products.
The Direct Casting Processing Line
- Take the aluminum ingots and a little scrap into the melting furnace and melt them into Aluminum liquid.
- Let the Aluminum liquid flow into another furnace to settle the impurity substance, at the same time, add other needed chemical composition to the liquid.
- Pour the liquid into the mold and produce a casting slab about 500mm in thickness.
- Scapling. After polishing and cleaning, we convey the slabs to the hot rolling processing line, where they undergo heating and softening. Then they will enter into the line and roll into mother coils 6-10mm in thickness.
- Sending the mother coils to cold rolling line and planishing them to the needed thickness.
- Annealing them in the annealing oven. This process can change the coils’ physical performance, such as the tensile strength, yield strength, and elongation. The time and times are different in different grades.
- After cooled down, the coils will enter into the tension leveler machine. The process is to clean the coil and ensure its good planeness. This option is only available for coils with a thickness less than 2.0mm. Otherwise, they must undergo cleaning in the washer using hot water.
- If required, we will conduct the final annealing process again.
- Cutting the coils into the needed length.
- Packing. We adhere strictly to international standards for packaging. We use EPE to protect the aluminum sheet, plastic sheets to prevent water damage, cartons to shield against impact, and steel bars to enhance stability. And every package will be put the desiccant.
- Sending them to storage.
The Continue Casting Processing Line
What’s the difference between DC and CC? The difference between DC and CC is the formation of mother coils. For the CC processing line, the treated aluminum liquid is directly poured into the continued casting machine and transformed into the mother coils. In the DC, the aluminum liquid is firstly transformed into slabs and rolled in the hot rolling processing line, then forms the mother coils.
The difference between DC and CC
The differences between DC aluminum plates and CC aluminum plates are from six aspects: price, blank supply, production process, performance, use, and finished products:
- Price: The process of CC aluminum plates is simple and the price is cheaper than DC aluminum plates.
- Different blank supply: The difference between the two is that the blank supply is different.
DC materials: aluminum ingots – melted and cast into flat ingots – milled – homogenized annealing – hot rolled into plates.
CC materials: aluminum ingots – smelting – rolled into strips through casting and rolling mills. CC materials have high production efficiency, but defects such as component segregation and inclusions are not easy to solve, and the quality is not as good as DC materials.
- The production process is different: The continuous casting machine processes it into a casting roll with a thickness of 8mm. It is then further processed using a cold rolling mill. In contrast, DC involves heating aluminum sheet ingots, typically 400-500 mm thick, at high temperatures.Rolled by the hot rolling mill.
- Different properties: DC aluminum plates have good surface quality, strong mechanical properties and ductility, and good oxidation effects. Simultaneously, processed aluminum discs typically originate from aluminum plates, and their properties naturally reflect those of the aluminum plates.
- Different uses. CC aluminum plates mostly use in molds, while DC aluminum plates are suitable for stamping and stretching.
- Difference in finished products: Usually the elongation of CC final products is lower than that of DC final products. The surface of DC products is brighter.
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