Planishing Parameters Before Polishing
抛光前的打平流程参数
标签：抛光前处理, 逐级打平, 锤面递进, 镜面准备, 质检
欲得镜面铜器，打平须分三级递进：先用中凸锤面去除深痕，再用近平面修匀，最后用抛光钢锤轻收至高光。每级之间用 400→800→1200 目水砂纸逐级找平，最后用琢磨蜡+布轮出光。质检标准：侧光 45° 照射无可见起伏波纹，指甲刮过无阻滞感。
For a mirror copper finish, planish in three递进 stages: a medium-convex face removes deep marks, a near-flat face evens, and a polished steel face lightly sets to high sheen. Between stages, level progressively with 400→800→1200 grit wet paper, then colour with polishing compound on a cloth wheel. QC: at 45° raking light no ripple is visible and a fingernail passes without catching.