Brake Fluid Anti-Rust Performance Tester – Theory And Configuration

Brake Fluid Anti-Rust Performance Tester – Theory and Configuration

Importance of Anti-Rust Testing
Brake systems rely on hydraulic fluid integrity. Corrosion within brake lines and calipers can lead to component failure. Changsha Friend Experimental Analysis Instrument Co., Ltd provides a Brake Fluid Anti-Rust Performance Tester to evaluate fluid resistance under accelerated conditions.

Test Principle
A steel coupon is immersed in the brake fluid sample and maintained at elevated temperature (e.g., 100 °C) for a defined period (commonly 360 hours). Post-test, the coupon is cleaned and weighed to determine mass loss caused by corrosion.

Equipment Features

• Temperature-Controlled Bath: Ensures stable heat for extended durations.

• Sample Agitation: Gentle stirring prevents stratification and simulates fluid movement.

• Coupon Holder: Non-reactive fixtures to suspend steel pieces in the fluid.

• Data Logging: Continuous recording of temperature, immersion time, and fluid pH.

Relevance to Brake System Reliability
Brake fluid formulations must resist hydrolysis and maintain neutral to slightly acidic pH to minimize metal corrosion. Anti-rust performance data guides additive package optimization.

Preparation and Execution

• Steel Coupon Preparation: Degrease with solvent, rinse in deionized water, and dry to constant mass.

• Fluid Conditioning: Dry fluid under vacuum to remove dissolved water before testing.

• Post-Test Cleaning: Use inhibited acid solutions to remove corrosion products, rinse, and dry thoroughly.