涂裝常見問題分析

《涂裝常見問題分析》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。

1、MODULENAMEMODULENUMBER涂裝常見缺陷分析涂裝常見缺陷分析G3漆膜缺陷原因分類:?涂料問題涂料問題((Productproblems)?應(yīng)用不良應(yīng)用不良(Applicationproblems)?設(shè)備因素設(shè)備因素((Equipmentproblems)?環(huán)境因素((EnvironmentCause)?顏色問題顏色問題(Colourproblems)9/3/2010Prepareedby:LiuChenzhong2漆膜硬度不夠（weak)weak)::描述(DESCRIPTION)表現(xiàn)為漆膜軟,很容易被劃傷；相應(yīng)的耐溶劑性能表現(xiàn)差。9/3/2010Prepareedby:L

2、iuChenzhong3原因（cause)cause)：通常是漆膜樹酯交鏈不夠好，而交鏈不夠的主要因素有：１樹酯分子選擇不合適；２未完全干燥；３高溫漆或雙組份漆烘烤溫度不夠；４雙組份漆固化劑配比不對(duì)。9/3/2010Prepareedby:LiuChenzhong4起泡（blowing)blowing)：9/3/2010Prepareedby:LiuChenzhong5起泡的原因((cause)cause)：通常是基底有銹跡(擴(kuò)大）、污垢、小凹孔、磷化渣質(zhì)、水汽等被封在漆膜底下，漆膜在烤干或受熱（受熱膨脹）時(shí)，這些物質(zhì)彭漲將漆膜頂起造成。9/3/2010Prepareedby:LiuChe

3、nzhong6起泡的原因：底下有Money!9/3/2010Prepareedby:LiuChenzhong7溶劑泡（SolventPoppingSolventPopping）描述（DESCRIPTION）新噴漆膜表面有直徑小于1MM的小氣泡。Opentoppedblistersupto1mmindiameteronthesurfaceofthemostrecentlyappliedpaint9/3/2010film.Prepareedby:LiuChenzhong8溶劑泡（SolventPoppingSolventPopping）起因（CAUSE）Airorsolventvapourtr

4、appedbyfastdryingpaintformingaskin.Thismaybedueto:a)天那水太差或太快干。poorqualityortoofastthinner.b)噴得太厚或兩層漆之間干燥時(shí)間不夠。excessivefilmthickness,orinsufficientdryingtimebetweencoats.c)壓縮空氣壓力太低。compressedairpressuretoolow.d)加熱太快。dryingtemperaturetoohigh,heatsourcetooclosetothefilm,toohot,orappliedtoosoon.9/3/20

5、10Prepareedby:LiuChenzhong9溶劑泡（SolventPoppingSolventPopping）?預(yù)防（PREVENTION）?a)確保工件表面清潔Ensurethatthesurfaceisscrupulouslyclean.?b)使用合適的天那水。Useonlyrecommendedthinner.?c)每層漆膜厚度合適，并適當(dāng)閃干Applypaintinthin,wetfilms.Allowsufficientdryingtimebetweencoats.?d)使用正確的噴漆壓力Usecorrectcompressedairpressure.?e)烘烤前適當(dāng)流

6、平，避免加熱過快，熱源過近。Allowsufficientflashofftimebeforeforcedrying,ensurethatthecorrectdryingtemperatureisnotexceeded.Donotallowtheheatsourcetobeplacedtooclosetothesurface.9/3/2010Prepareedby:LiuChenzhong10針孔（PinholingPinholing）描述（DESCRIPTION）小凹穴，通常直徑小于1MM。Smallcavities,generallylessthan1mmindiameter,9/3/

7、2010Prepareedby:LiuChenzhong11針孔（PinholingPinholing）預(yù)防（PREVENTION）a)一次不要噴得太厚。Donotspraytoothickonetime,b)烘烤之前適當(dāng)流平。Flashingthefilmbeforebaking.c)使用涂料廠商推薦的附料。Useonlyrecommendedmaterials.d)正確調(diào)配油漆，使用較慢干稀釋劑。Mixthepain