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表面处理 · 拉丝 · 镜面 · 喷砂 · 验收

不锈钢表面处理:拉丝、镜面与喷砂的工艺与验收

拉丝(No.4)看纹路均匀与方向,镜面(No.8)看 Ra 与无划伤,喷砂看均匀度与粗糙度;不同工艺影响耐蚀与外观。
不锈钢装饰与外观件常用三类表面处理:
1) 拉丝(No.4 / hairline):砂带或百叶轮单向研磨,形成直纹。验收看纹路直度、均匀性、色差与方向一致性;不同批次要同向加工。 2) 镜面(No.8 / mirror):多道抛光至 Ra≤0.1μm 级别(视要求),验收看反射清晰度、无划伤、无抛光膏残留;镜面易显指纹与划痕,需保护膜。 3) 喷砂(sandblasting / bead blasting):形成均匀麻面,验收看粗糙度(Ra)、均匀性与色差;喷砂会改变表面钝化状态,通常需后续钝化。
选型与验收建议:
• 外观件明确表面代号与封样,避免"差不多"争议; • 拉丝方向在订单中约定; • 镜面件注意保护膜与运输划伤; • 喷砂/拉丝后如耐蚀要求高,补做钝化并做蓝点试验。
表面处理既影响外观,也影响耐蚀与清洁性,验收标准要写进技术协议。
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
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