| 摘要 |
Described herein are butt-welded polymeric articles and means of effecting joinder of cross-linked polymeric articles by means of such welds. The invention finds application in, e.g., forming large-diameter heat recoverable sleeves from cross-linked polymeric sheets, e.g., cossosion-proofing pipe joints and the like. The weld is effected by heating under compression a plurality of thermoplastic inserts spaced along the ends of the polymeric articles to be welded, the inserts containing a peroxide or other heat activated cross-linking agent.
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