QC for Rolled Textures: Rubbings & Roughness
辊纹质量检测：拓印与粗糙度轮廓
标签：质量检测, 拓印, 粗糙度, 轮廓仪, SPC
辊纹批量质检三件套：①拓印法——复印纸+铅笔拓整幅纹理，检查接缝错位、漏压与深浅一致性，快速且可归档；②粗糙度仪测 Ra 增量（辊纹通常使 Ra 提高 0.5–2 μm，视纹深而定），每 50 m 板抽 1 m；③轮廓仪（针尖半径 2 μm）抽测纹深与单元节距，公差按图样 ±0.02 mm。三项数据录入 SPC 控制图，辊面磨损趋势（纹深缓降）能在报废前 3–5 天预警，恰好安排换辊或退镀重镀。
Three tools for rolled-texture QC: (1) rubbing — pencil over copy paper lifted from the full panel, catching seam misalignment, skipped passes and depth drift quickly, and it archives; (2) roughness gauge for Ra gain (rolled texture typically adds 0.5–2 μm depending on depth), sampling 1 m per 50 m; (3) a profilometer (2 μm stylus) for pattern depth and pitch at ±0.02 mm to drawing. Feed all three into SPC charts — the slow depth decline of roller wear gives 3–5 days' warning to schedule rechrome or roller swap before scrap.