ASTM B920-2001(2011) 标准详情
- 标准号:ASTM B920-2001(2011)
- 中文标题:用次氯酸钠液蒸气测定金属底质上金和钯合金镀层孔隙度的规程
- 英文标题:Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2001
Palladium and gold coatings are often specified for the contacts of separable electrical connectors and other devices. Electrodeposits are the form of gold that is most used on contacts, although it is also employed as inlay or clad metal and as weld
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