ISO 2143:2017 铝和铝合金的阳极氧化 封孔后的阳极氧化膜吸收能力损失的评估 酸处理后的染斑试验

标准编号：ISO 2143:2017

中文名称：铝和铝合金的阳极氧化 封孔后的阳极氧化膜吸收能力损失的评估 酸处理后的染斑试验

英文名称：Anodizing of aluminium and its alloys — Estimation of loss of absorptive power of anodic oxidation coatings after sealing — Dye-spot test with prior acid treatment

发布日期：2017-10

标准范围

This document specifies a method of estimating the loss of absorptive power of anodic oxidation coatings that have undergone a sealing treatment, by dye absorption after acid pretreatment.
The method is suitable for use as a production control method and can be applicable to anodic oxidation coatings which may be subjected to weathering or aggressive environments, or where resistance to staining is important.
The method is not applicable to those coatings that
a) are formed on alloys containing more than 2 % copper or 4 % silicon,
b) are sealed by the dichromate process,
c) have been given supplementary processing, e.g. oiling, waxing or lacquering,
d) are coloured in deep shades, and
e) are less than 3 μm thickness.
The method is less appropriate where nickel or cobalt salts, or organic additives, have been added to baths used for hydrothermal sealing.

标准预览图