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鉻酸鹽處理 規格表
Chromate KS Specifications — 4個尺寸
ISO 4520
ISOChromate
4 sizes| Grade | Thickness (μm) | Hardness (HV) | Corrosion (SST h) | Color | Note |
|---|---|---|---|---|---|
| 0.1~0.3 | - | 48 | ~ | 3 RoHS | |
| 0.1~0.3 | - | 72 | 零件 | ||
| 0.3~0.5 | - | 96 | 個 | 6 , RoHS | |
| 黑色 | 0.3~0.5 | - | 96 | 黑色 | · |
This specification follows ISO (International Organization for Standardization) standards. ISO ensures cross-border compatibility, making it ideal for multinational projects, export equipment design, and global parts procurement.
鉻酸鹽處理在鍍鋅後形成鉻酸鹽轉化膜,提升耐腐蝕性並決定外觀色澤。根據RoHS,六價鉻(黃色、黑色)受限,三價鉻(白色、藍色)為主流。膜厚0.1-0.5μm很薄,可額外提供48-96小時SST耐腐蝕性。外觀色彩(彩虹、藍、黑)實現零件識別與裝飾性兼顧。