A short-process, high-efficiency method for recycling and remelting thick-walled zirconium tube heads.

Abstract

This invention discloses a short-process, high-efficiency method for recycling and remelting thick-walled zirconium tube heads. The method includes the following steps: Step 1, recycling thick-walled zirconium tube heads, wherein the tube head has a wall thickness greater than 5 mm and a length less than 20 mm; Step 2, encapsulating the recycled thick-walled zirconium tube head in Step 1 with molten zirconium to obtain an ingot; Step 3, subjecting the ingot obtained in Step 2 to VAR melting to obtain a finished zirconium ingot. This invention, by using molten zirconium to encapsulate thick-walled zirconium tube heads, can obtain an ingot that meets the requirements for VAR melting in a single process. Furthermore, VAR melting can be used to prepare a finished zirconium ingot with a chemical composition that meets national standards, achieving a short-process recycling of thick-walled zirconium tube heads. This method is applicable to fields such as nuclear reactors, aerospace, semiconductors and new energy, and petrochemicals.

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