{"id":30210,"date":"2026-05-29T07:49:25","date_gmt":"2026-05-29T07:49:25","guid":{"rendered":"https:\/\/doingcable.com\/?p=30210"},"modified":"2026-05-29T08:19:11","modified_gmt":"2026-05-29T08:19:11","slug":"what-is-continuous-casting-of-copper","status":"publish","type":"post","link":"https:\/\/doingcable.com\/ar\/what-is-continuous-casting-of-copper\/","title":{"rendered":"\u0645\u0627 \u0647\u064a \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0635\u0628 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0644\u0644\u0646\u062d\u0627\u0633\u061f"},"content":{"rendered":"

Continuous casting of copper<\/a><\/strong> is a highly efficient metallurgical process that produces long, continuous lengths of copper rod, bar, or billet directly from molten metal. Unlike traditional batch casting \u2014 where copper is poured into individual molds to form ingots or wire bars that must later be reheated and rolled \u2014 continuous casting solidifies the metal in a moving mold and withdraws it as an unbroken strand.<\/p>\n\n\n\n

This technology has become the dominant method for producing high-quality copper rod used in the wire and cable industry. It delivers superior consistency, higher productivity, and significant cost advantages while meeting the strict quality demands of modern electrical conductors.<\/p>\n\n\n\n

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Modern continuous casting and rolling (CCR) lines are the backbone of high-volume copper rod production for wire and cable manufacturing.<\/p>\n\n\n\n

The Continuous Casting Process: Step by Step<\/h2>\n\n\n\n

The process typically combines melting, casting, and hot rolling in a single integrated flow (especially in CCR systems). Here is how it works in practice:<\/p>\n\n\n\n

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  1. Melting<\/strong> High-purity copper cathode or selected scrap is melted in a shaft furnace or induction furnace. Temperature is carefully controlled, usually around 1100\u20131150\u00b0C.<\/li>\n\n\n\n
  2. Holding and Refining<\/strong> The molten copper moves to a holding furnace where temperature, oxygen content, and impurities are precisely managed. For standard Electrolytic Tough Pitch (ETP) copper, oxygen levels are typically maintained between 120\u2013300 ppm.<\/li>\n\n\n\n
  3. Casting<\/strong> Molten copper is fed continuously into a water-cooled casting machine. In the most common wheel-and-belt systems, copper solidifies in a trapezoidal groove on a rotating wheel sealed by a steel belt. Twin-belt casters use two moving steel belts to form the mold.<\/li>\n\n\n\n
  4. Solidification and Withdrawal<\/strong> As the metal solidifies, it is continuously withdrawn from the mold at a controlled speed, forming a solid cast bar or rod.<\/li>\n\n\n\n
  5. Hot Rolling (in CCR lines)<\/strong> The hot cast bar immediately enters a multi-stand rolling mill, reducing its cross-section to the final rod diameter \u2014 most commonly 8 mm<\/strong> for wire drawing feedstock.<\/li>\n\n\n\n
  6. Cooling, Coiling, and Finishing<\/strong> The rod is cooled, coiled into large bundles (often 5\u20138 tonnes), and may undergo surface treatment or pickling before packaging.<\/li>\n<\/ol>\n\n\n\n

    This uninterrupted flow eliminates the reheating step required in traditional methods and produces rod with excellent uniformity.<\/p>\n\n\n\n

    Main Types of Continuous Casting for Copper<\/h3>\n\n\n\n

    1. Continuous Casting and Rolling (CCR) \u2013 Wheel-and-Belt Systems<\/strong> The most widely used technology for wire rod production. Leading systems include:<\/p>\n\n\n\n