Dapped Patch Inserts in Bronze Vessel Restoration
大英博物馆青铜容器修复中的下凹补片
标签：博物馆修复, 补片, 下凹, 可逆性, 色泽匹配
大英博物馆修复一件汉代铜盆穿孔区时，用 0.8 mm 黄铜片在下凹砧上打出与器壁弧度一致的补片：先以硅橡胶翻取内壁负模确定曲率，补片分三级下凹、每级退火一次，边缘减薄至 0.3 mm 便于铆接；不做整体做旧，仅在接缝处以 B72 丙烯酸树脂调色，保持可逆并与原始表面明确区分。
Restoring a pierced Han-dynasty bronze basin, British Museum conservators dapped a patch from 0.8 mm brass to match the wall curvature: curvature was read from a silicone negative of the interior, the patch sunk in three grades with one anneal each and its rim thinned to 0.3 mm for riveting. No overall patina—only B72 acrylic tinted at the seam—keeping the intervention reversible and visually distinct from the original surface. ---