Through experiment research of waste lead delay elements containing delay composition, the waste lead delay elements were recycled by the fragment direct smelting method. The specific method is to cut lead core body into Xmm small pieces, then the pieces are put into the pot, they are melted into lead liquid at X ℃in the pot.%通过对含延期药的废铅芯延期体进行多次的攻关试验，从理论分析到多次实践，采用切段直接熔炼法，实现了废铅芯延期体的循环利用。具体办法是将废铅芯延期体切成 Xmm的小段，投入锅中，锅中有已熔化的铅液，铅液的温度保持在X(℃)。
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