檢測能力（Test ability）:
     循環(huán)腐蝕試驗(yàn)（CCT）: 該項(xiàng)試驗(yàn)包含鹽霧、溫度變化、干濕交替等工況，模擬汽車零部件在戶外經(jīng)歷的大部分腐蝕環(huán)境，與戶外的相關(guān)性較好。
    Cyclic Corrosion Test (CCT): The test includes salt fog, temperature change test anddry/wet alternately, simulating most corrosive     environments of auto parts gothrough outdoor, has good rank order correlation with outdoor corrosion.
    設(shè)備參數(shù)（Parameters）：

    案例應(yīng)用Case application
    理論上，循環(huán)腐蝕試驗(yàn)適用于所有汽車金屬零部件。截止目前，已驗(yàn)證和制定了針對電泳、噴涂類涂層產(chǎn)品、不銹鋼產(chǎn)品、鑄鋁件產(chǎn)品的一系列循環(huán)腐蝕試驗(yàn)方法。其中，鐵基材的電泳、噴涂類涂層產(chǎn)品、不銹鋼產(chǎn)品的循環(huán)腐蝕試驗(yàn)方法可參考Q/BYDQ-A1901.886—2014《汽車零部件耐腐蝕試驗(yàn)指導(dǎo)規(guī)范》，鋁制電泳、噴涂類涂層產(chǎn)品、鑄鋁件產(chǎn)品的循環(huán)腐蝕試驗(yàn)方法可參考Q/BYDQ-A1901.959—2015《汽車鋁制零部件耐腐蝕試驗(yàn)及評價(jià)規(guī)范》。
    Bytheory, cyclic corrosion test applys to all the metal parts of car. By now, wehave worked out a series of cyclic corrosion test methods forcoating or plating parts, stainless steel parts and aluminium castparts. Standard Q/BYDQ-A1901.886—2014 is applying to coating or plating parts made ofsteel and stainless steel parts. Standard Q/BYDQ-A1901.959—2015 isapplying to coating or plating parts made of aluminium& aluminium alloy, and aluminium cast parts.
    典型案例：車身涂層試板的腐蝕試驗(yàn)表明，循環(huán)腐蝕試驗(yàn)相比于中性鹽霧試驗(yàn)，與戶外的腐蝕相關(guān)性更好。
    Typicle case: Cycliccorrosion test is moresuitable for car body coating panel compared to NSS test,it has good order correlation with outdoor corrosion.