关键词: 真空助力器带制动主缸总成；耐腐蚀性试验；重载荷强度试验；调整叉

Abstract: With the development of automobile industry, corrosion resistance test plays an important role in test and detection. This paper through the evaluation and analysis of corrosion resistance test, studying whether the vacuum booster with brake master cylinder assembly meets the corrosion resistance test standard. Based on the standard QFC-CA04-005-2015 Vacuum Booster with Brake Master Cylinder Assembly, use salt spray corrosion test chamber, high and low temperature alternating test chamber and high and low temperature performance test bench for vacuum booster to complete the test. The results showed that when the sample is tested under 8 826 N heavy load strength test on the performance test bench, the adjust the fork is damaged. After the analysis of corrosion resistance test data, draw the test conclusion:no less than 15% red rust and 2% corrosion resistance test samples, which led to their failure to withstand the test thrust of 8 826 N. Based on this, the author puts forward some specific suggestions to the competent authorities, it is hoped to provide reference for improving the corrosion resistance of vacuum booster with brake master cylinder assembly.

Key words: Vacuum booster with brake master cylinder assembly; Corrosion resistance test; Heavy load strength test; Adjust the fork