箱型结构的主梁，内腔无法涂漆防锈蚀，为了防止水汽侵入腐蚀主梁内腔，必须保住主梁内腔的密封性。
The box type structure, cavity cannot antirust paint corrosion, in order to prevent moisture intrusion corrosion beam cavity, sealing the inner cavity of the main girder must keep.
而钢筋的腐蚀 （锈蚀 ）则会降低它与混凝土之间的结合效果。
The effectiveness of such connection can be reduced through corrosion of the reinforcing steel.
阐述了应力腐蚀和冲刷腐蚀机理，提出了适用于热轧钢卷强制冷却过程出现的应力腐蚀现象的滑移—锈蚀理论，可以很好地解释热轧钢卷冷却后出现的腐蚀缺陷。
Based on the stress corrosion, erosion mechanism and slippage-rust theory suitable to the stress corrosion of hot rolled coil during forced cooling, the coil corrosion defects are explained.
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