Heat Coloring Brass & Bronze
黄铜与青铜热着色
标签：黄铜, 青铜, 热着色, 教程
黄铜（铜锌合金）热着色色域偏暖、易在较高温突然变暗，操作窗口比紫铜窄。建议：①低温段（150–300℃）多做停留，可得金棕→红棕 ②避免超过约 500℃（锌蒸发、表面发灰发脆）③可先酸洗出均匀底再热作。青铜（铜锡）色偏冷绿，热色更稳定。黄铜热色常用于复古五金、灯具配件；青铜多用于艺术器。
Brass (Cu-Zn) has a warmer, narrower window and can suddenly darken at higher heat. Tips: ①linger in the low range (150–300℃) for gold-brown → red-brown ②stay under ~500℃ (zinc evaporates, surface grays/brittles) ③acid-clean to an even base first. Bronze (Cu-Sn) runs cooler-green and is more stable. Brass heat-color suits vintage hardware and lamp fittings; bronze for art vessels. ---