Anneal-Roll Composite Recipe

Anneal-Roll Composite Recipe

退火-辊压复合工艺配方

type:recipe · level:intermediate · material:copper · scale:decorative-object · stage:patternmaking

标签：退火,复合工艺,氧化皮,酸洗,开裂

对高硬态铜板（如冷轧硬态），先 500–550℃ 退火 30–60 秒再辊压，可显著提升延展性、降低开裂率。退火后铜面生成氧化皮，辊压前用稀酸（5% 硫酸）轻洗并中和擦干，避免氧化皮压入纹理造成麻点。

For hard-rolled copper, anneal at 500–550℃ for 30–60 s before rolling to improve ductility and cut cracking. The scale formed should be lightly pickled in 5% sulphuric acid, neutralised and dried before rolling to avoid pitting the relief.