Page 1667 - MiSUMi 2025

Ⅱ. Anti-Rust Method
Metal corrosion is caused by various internal and external factors. Some common factors and corresponding countermeasures are listed
below.

Factors affecting the corrosion of metal Countermeasures to slow down rusting

Adopt materials with stronger anti-rust ability. For anti-rust ability
1 Chemical composition and structure of metal itself
comparison of materials, refer to Table 1 on P.B-021.
Adopt surface treatments with stronger anti-rust ability. For anti-rust
2 Surface treatment method of metal
ability comparison of surface treatments, refer to Table 2 on P.B-021.
3 Metal surface finish Select products with high processing accuracy

Avoid contact with media that tend to cause rusting of the material rust, such as hand sweat.
4 Media composition in contact with metal surface
Regularly spray anti-rust oil. Refer to Table 3 on this page for the effect of spraying anti-rust oil.
The higher the ambient temperature and humidity, the
5 Maintain a low humidity and temperature environment.
more easily the metal corrodes.

Test Method: Conduct the composite corrosion test according to GB/T 20854—2007 cyclic test method
Test Conditions: ➀ Salt Water Spray Test (5%NaCl.35℃) 2hr }
➁ Dry (60℃ ) 4hr 8hr is one cycle
➂ Wet (95%RH. 35℃±2℃ ) 2hr

Comparison of Corrosion of SUJ2 Material (Without Surface Treatment) under Different Maintenance
Conditions (Reference) Table 3
Whether anti-rust oil is sprayed
Placement Time
Provided Not Provided

Before Test

8hr

24hr

B-022