Sheet Stock and Annealing Recipe
压花板料与退火配方
标签：退火温度, 软态, 料厚, 晶粒
手工压花选 T2 紫铜或 H62/H65 黄铜软态，厚度 0.5–1.5 mm。退火：紫铜 500–600 ℃、黄铜 600–650 ℃ 保温 3–5 min 后空冷或水冷，硬度降至 HV 50–70 以利成形。禁止超过 700 ℃ 以免晶粒粗大、表面氧化发脆。退火后在稀硫酸中清洗去氧化皮。
For hand embossing use soft T2 copper or H62/H65 brass, 0.5–1.5 mm thick. Anneal: copper 500–600 ℃, brass 600–650 ℃, hold 3–5 min then air- or water-cool, dropping hardness to HV 50–70 for formability. Do not exceed 700 ℃ or grains coarsen and the surface oxidizes and embrittles. Pickle in dilute sulfuric acid after annealing to remove scale. ---