Combining Wire Inlay with Transparent Enamel
错金银与透明珐琅的组合工艺
标签：跨材料, 错银加珐琅, 透明釉, 七宝烧, 烧成控制
先在铜胎完成 0.3 mm 微凸式错银，再于丝线以外区域点透明或半透明珐琅，820–850℃ 烧成后银丝凸出釉面 0.05–0.1 mm，形成线条光晕与玻璃深度的双重质感。难点：银在 800℃ 以上与釉料反应发黄，须选无硫釉并将烧成控制在 3 次以内；改用金丝则完全避免变色。入炉前整体 150℃ 预烘除气，防止釉下气泡顶起银丝。此法见于日本七宝烧局部装饰与欧洲当代首饰，烧成曲线与釉号须逐件建档。
Finish slightly raised 0.3 mm silver inlay on copper first, then fill the field with transparent or opalescent enamel fired at 820–850℃ so wire stands 0.05–0.1 mm proud—haloed lines over glass depth. The trap: silver yellows above 800℃ in contact with glaze, so use sulfur-free enamels and hold firing to three cycles; gold wire avoids the issue entirely. Pre-dry the whole piece at 150℃ to vent gas so bubbles cannot lift the wire. Seen in Japanese shippō accents and contemporary European jewelry, with per-piece firing records.