车轮INMETRO主要技术要求
Main Technical Requirements
测试项目 Test Items |
质量指标 Requirements |
注释Note |
弯曲疲劳试验 Rotational Fatigue Testing |
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径向疲劳试验 Radial Load Fatigue Testing |
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表面处理阻力和其他特性 Resistance testing and other characteristics of wheel surface finishing |
Total painting layer must be < 25 µm thick over wheel disc internal seating surface.
Absence, ppm or maximum allowed % for he***y metals: Chromium – 0.1%, Lead – 0.1%, Cadmium – 0.01%. |
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附着力试验 Adherence Testing |
在交叉和方格区域,必须没有分离现象。 There must be no detachment over the intersection and over the checkered area. |
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盐雾试验 Salt Spray Testing |
There must be no oxidati*** over surface region.
Migration must meet the maximum 2.0 mm on both sides of line. |
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耐湿试验 Resistance Testing in Wet Chamber |
There must be no oxidation over surface regi***.
Migration must meet the maximum 2.0 mm on both sides of line.
There must be no detachment over the intersection and over the checkered area for adherence. |
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杭州双度检测技术有限公司