Case: Restoration of a Tang Gilt Silver Plate
案例：唐代鎏金银盘修复
标签：文物修复, 局部鎏金, 汞齐补金, 可逆
一件唐代鎏金银盘局部金层脱落。修复采用"局部补金"：先除锈、用 925 银补胎，再以低汞金汞齐（1:5）点补缺失纹样，300℃ 控温驱汞，最后砑光做旧。全程在通风橱、汞收集装置下，遵循"最小干预、可再处理"原则，避免整体重鎏破坏历史信息。
A Tang gilt silver plate had local gold loss. Restoration used "selective re-gilding": derust, build the base with 925 silver, then spot-fill the missing pattern with low-mercury amalgam (1:5), drive mercury at controlled 300℃, and burnish to match. Done in a hood with mercury capture, following minimal-intervention and reversible principles—no full regilding that would erase history. ---