國內(nèi)外環(huán)氧粉末外涂層標(biāo)準(zhǔn)對比

Comparison between Domestic and Foreign Standards for Epoxy Powder External Coating

摘要: 簡要介紹了鋼管環(huán)氧粉末外涂層工藝；重點對比分析了SY/T 0315—2013和加拿大CSA Z 245.20—2014在適用范圍、性能要求、生產(chǎn)控制和質(zhì)量檢測等方面的差異。對于28 d陰極剝離和28 d附著力等檢測周期較長的項目，SY/T 0315—2013的做法比較容易實施；對于粉末性能和實驗室涂敷試件涂層質(zhì)量檢測結(jié)果的時效性，以及生產(chǎn)過程中的型式檢驗中的界面污染控制，SY/T 0315—2013沒有相關(guān)要求。

Abstract: Briefed here in the article is the epoxy powder external coating process for steel pipes.Focused on is a comparative analysis between the Chinese standard SY/T 0315-2013 and the Canadian standard CSA Z 245.20-2014, involving such aspects as applicable scope, performance requirement, production control, and quality inspection, etc.It is identified via the analysis that for items that need a rather long inspection cycle like 28 d cathodic disbanding and 28 d adhesion, etc.it is relatively easy to adapt the method as described under SY/T 0315-2013, and that for the timeliness of the results from inspections of the powder performance, and the coating quality of the specimen in the lab, and for control of the interfacial contamination in the type inspection during the production process, there is no requirement as specified under SY/T 0315-2013.