【正文】
g, shedding and bubbling etc.).Furthermore, there should be parison test, namely paring to standard board with powder dope fully solidified, to test onspot dope layer solidifies fully or not. If the dope layer is discovered to bee soft and sticky and the cotton strip is colored seriously, it indicates that the dope doesn39。.The tape will stick brown rusty spots (iron workpiece) or white oxid (aluminum or alloy workpiece) if the dope has inferior adhesion force. solidification processMaterials preparation ① Clean MEK solvent (Methyl Ethyl Ketone). ② Clean cotton strips. ③ Stove heating instrument.Dope antisolvent test process:① Wet the cotton strip with MEK.② Roll the cotton strip into 139。Skills of operators. force test tool: American knife or shaver, cross scriber, tape and magnifier.Test process of adhesion force of powder dope:① Scribe the coating layer through till the base material by shaper, each 610 lines portrait or landscape. For film thickness more than 80181。 Exterior state (pattern, levelling and luster) disagrees with the requirement.Decrease insulation capability.Exterior state (pattern, levelling and luster) disagrees with the requirement.Decrease insulation capability.MEK試驗失敗,表明涂料沒有完全固化,應(yīng)當(dāng)提高爐溫或者延長烘烤時間。如果很快就發(fā)現(xiàn)涂層松軟發(fā)粘,棉條嚴(yán)重變色,表明涂料沒有固化。③經(jīng)過50次擦拭,絕大多數(shù)固化充分的涂料允許有輕微或沒有涂層破壞現(xiàn)象(如褪色,失光,掉漆,起泡等)。②將棉布條卷成1寸寬,用類似握鉛筆的力量,來回在樣板上擦拭50次。③爐溫儀。材料準(zhǔn)備 ①干凈的MEK溶劑(甲乙酮)。角度快速地拉起。②將板面的碎屑清理干凈。粉末涂料的附著力的測試過程:①用剃須刀劃透涂層至底材。操作員工的熟練程度。靜電槍的充電問題。工件的形狀。輸送鏈線速度。影響膜厚的因素: 工件邊緣包覆力不夠。表面狀態(tài)(花紋,流平,光澤)與要求不一致。易引起局部針孔腐蝕。耐腐蝕性降低。與膜厚正常的部位有色差,易露底。平面粉桔皮現(xiàn)象重。 絕緣性能下降。易引起局部針孔腐蝕。耐腐蝕性降低。膜厚低于要求,可能的影響: (ASTM G879) 7%Nacl solution (2 v. 30 days)connect unseparately 粉末涂料噴涂現(xiàn)場常規(guī)檢驗一、檢驗內(nèi)容提要檢驗內(nèi)容 儀器:膜厚計(電磁式,渦流式或機(jī)械式) Penetrability(OH)2 Sol resistance (45 days) no change, not bee soft or foamingCalcium chloride resistance (45 days)no change, not bee soft or foamingHumid heat resistance (h)100028d cathode stripping (48hmm)=10Adhesion0Impact resistance (ASTMG/477)=100Cured film thickness (um)300500Gel time (230℃/S)1015 gloss85Density (g/cm) bending under 30? (ASTMA775A). storage.(3) Properties1?Specific gravity: 2?Melting point: 8090?3?Size: 180 mesh standard sieving 4?Preheating time of workpiece: 180?/1015min230?/58min250?/24min5?Time of firing: 220230?/34min(4) Scope of useWith effective prolonged service life of 20 years, the product is mainly applicable to tap water pipe, oil field piping and construction equipment. (5) Condition of storageOwing to low glass temperature, the product must be stored at ventilated, dry and clean places under 35? and not be close to fire source. In this condition, it can be stored steady for a year and a half。耐應(yīng)用電壓;(ASTM G879)7%Nacl 溶液2伏特30天沒分開連接Technical Data of Antiseptic Powder Coating (1) TypeIt is solidified by imported highmolecular phenolic epoxy and firming agent, with excellent flexility and chemical resistance. (2) Feature to solidify, activated, pletely solidified at 220240?/34min. adhesion: reach class 12 after being boiled in 95? water for 48 hours。落砂耐磨 L/nm≥3耐氫氧化鈉45天無變化,無變軟或起泡耐汽油 h240耐鹽霧 h1000體積電阻率Ωm≥1X1013柔韌性 mm≤3鉛筆硬度 H5H固化時間(230℃/S)90粒徑分布1416%90um97%150um60176。七、鋼筋噴涂工藝流程圖除油,除銹預(yù)熱到大約220240℃ 58分鐘靜電粉末噴涂或熱噴涂用水冷卻漏涂的檢測工件 鼓風(fēng)器 預(yù)熱 粉末噴涂 漏涂檢測項目性能技術(shù)指標(biāo)備注涂料外觀色澤均勻,松散無結(jié)塊,以免溫度偏差太大而影響顏色及質(zhì)量。六、注意事項,附著于皮膚的粉末應(yīng)及時沖洗干凈。三、產(chǎn)品性狀比重:融點8090℃粒度:180目標(biāo)準(zhǔn)篩通過工件預(yù)熱時間:180℃/1015min230℃/58min250℃/24min烘烤時間:220230℃/34min四、使用范圍本產(chǎn)品主要適用于自來水管、油田管道及建筑設(shè)備,其有效延長被涂物壽命長達(dá)20年之久。 彎曲(ASTMA775A)。二 、產(chǎn)品特點,活性高,220240℃/34min可完全固化,經(jīng)95℃水煮48小時,附著力為12級,各項力學(xué)性能及防腐性極佳,可用防腐領(lǐng)域。s mainly used in crust of airconditioner, park articles, courtyard lamps, light poles, outdoor furniture (beach chairs), gardening tools, aluminum materials and highspeed fence etc.2 Product SeriesAble to offer high luster (7695%), semiluster(5075%), subluster (2050%) and dulled (under 20%) products. And luster can be adjusted according to requirements of customers.3 Physical Property of the PowderSpecific Weight: (diverse according to colors and luster)Grain Distribution: 100% less than 100um (able to be adjusted according to special requirements of baking and coating of customers)4 Solidification Condition200?10min(workpiece temperature) can be adjusted according to baking condition of customers.5 Performances of Coating Film Test Item Test Standard or MethodTest Standard High Luster Semi/Plain Luster DulledAnti Impact CapabilityISO6272GB/T1732199350cm/kg50cm/kg50cm/kgCupping TestISO1520GB/T975319888mm6mm5mmAdhesion Force (grid scribing method)ISO2409GB/T96861998100/100CurbeISO1519GB/T674219862mm3mm3mmPensil HardnessASTMD3363GB/T673919961H2HSalt Fog TestISO72253GB/T17711991500hWarm TestISO6270GB/T174019791000HHeat Resistance110℃ 24 hours (white)Excellent Light Retaining Capability, △EWeatherabilityFlorida SolarizationISO2810Southward 45176。 以上涂膜的性能指標(biāo)通常會隨著光澤的降低而稍有降低。 涂膜性能 檢測項目檢驗標(biāo)準(zhǔn)或方法檢驗標(biāo)準(zhǔn)高光半/平光無光抗沖擊性ISO6272GB/T1732199350cm/kg50cm/kg50cm/kg杯突試驗ISO1520GB/T975319888mm6mm5mm附著力(劃格法)ISO2409GB/T96861998100/100彎曲ISO1519GB/T674219862mm3mm3mm鉛筆硬度ASTMD3363GB/T673919961H2H鹽霧試驗ISO72253GB/T17711991500h溫?zé)嵩囼濱SO6270GB/T174019791000H耐熱性110℃24小時(白色)保光性優(yōu)異,△E耐候性佛羅里達(dá)暴曬ISO2810朝南45176??筛鶕?jù)用戶要求調(diào)整光澤。主要用于空調(diào)機(jī)外殼、公園用具、庭院燈具和燈柱、戶外家具(沙灘椅類)、園林工具、鋁型材、高速護(hù)欄等。七、附錄技術(shù)指標(biāo)項目性能技術(shù)指標(biāo)涂料外觀色澤均勻,松散無結(jié)塊密度(g/cm)60176。,以免溫度偏差太大而影響顏色及質(zhì)量。六、注意事項,附著于皮膚的粉末應(yīng)及時沖洗干凈。Artificial accelerating aging test (1000h)Slight loss of gloss, color change, no powderedness, foaming or pulloff i