【正文】 stomers.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。六、注意事項(xiàng)，附著于皮膚的粉末應(yīng)及時(shí)沖洗干凈。粒徑分布1416%90um97%150um體積電阻率Ωm≥1X1013落砂耐磨 L/nm≥3 gloss85Adhesion0(OH)2 Sol resistance (45 days) no change, not bee soft or foaming 易引起局部針孔腐蝕。輸送鏈線速度。粉末涂料的附著力的測(cè)試過(guò)程：①用剃須刀劃透涂層至底材。③爐溫儀。MEK試驗(yàn)失敗，表明涂料沒有完全固化，應(yīng)當(dāng)提高爐溫或者延長(zhǎng)烘烤時(shí)間。Exterior state (pattern, levelling and luster) disagrees with the requirement.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。③前處理，磷化后發(fā)黃。清洗噴嘴，使水壓。⑥壓縮空氣油含量高。檢驗(yàn)升降機(jī)和橡膠皮帶是否污染粉末。②檢查脫說(shuō)流量，水質(zhì)和噴嘴。④粉末質(zhì)量。⑤盡量一次烘烤完成。另可檢查粉末的含水率和噴房的濕度。檢查是否混入其它粉。①加強(qiáng)膜厚控制。7砂料①均勻密集出現(xiàn)。④檢查粉末質(zhì)量，操作員盡量不穿戴易掉細(xì)小纖維的衣褲和手套等。①更換高質(zhì)量的噴粉管材。③磷化不充分，存在粉杠現(xiàn)象。②出粉量太大。②工件接地不良。④定期清理（脫漆）或更換。①噴涂前修理工件邊角，使成圓弧形。①將掛具改成細(xì)圓棍形。③檢查粉末生產(chǎn)日期，過(guò)期粉先檢驗(yàn)，合格才能用。①調(diào)整磷化參數(shù)（如濃度，溫度，時(shí)間等）。t consistent.③Spray system (including workpiece) polluted by outer impurity matters, especially silicon remover and waterproofing reagent in the workshop.④Casting surface has large and deep holes.⑤Round and large holes appear on the coating layer, called as fish eyes.⑥Compressed air has high content of oil.①Contact producer to change the powder. ②Complete change and cleaning of spray room. Better if working out cleaning and checking procedure.③Check spray scene carefully and dispose of impurity matters. Make regulations to prevent intrusion of these matters.④Complete sand spray. Casting should be preheated at temperature and time subject to materials and thickness.⑤Pollution of drying and solidifying furnace channel should be cleared. Check lifter and rubber belt pollute the powder or not.⑥Check filter of air pressor, add oilwater separator and discharge regularly in every shift.3Partial or most area shedding of the coating area①Uncleared rust on surface of the base material.②Unclean washing, especially after phosphatization.③Unplete deoiling of surface of base material.④Lubricant on the chain drops to the work piece.⑤Bubbling of galvanized board and shedding of coating layer.①Through rust removal.②Check flowing quantity, water quality and nozzle. Check washing flow rate and pressure.③Use chemical oil removal (suitable for plant oil and not suitable for mineral oil) with alkali. And wash forcefully ten (pay attention to water quality)④Check lubricant index. If necessary, replace with lubricant of higher withstanding temperature or place receiver under dripping point.⑤Refer to attachment I.4Yellowing of the coating layer①Set temperature of the furnace channel or oven is relatively high.②Gas gets into the oven or furnace channel directly.③Too long stay in the furnace channel or oven, or conveyance chain stops running.④Powder quality.⑤Repeated baking of workpiece for more than 2 times.⑥Serious decoloring of the dope.①Get to know normal solidification condition and adjust.②Heating thermal exchanger.③Get to know baking condition. Be noted that whether conveyance chain running normal or not closely. If stop producing, end all workpiece baking and discharge the materials.④Powder supplier offers sample boards under different baking condition for reference in course of spraying.⑤Try to finish baking one time. Workpieces needing second baking should be treated centrally and determine repeated baking condition first.⑥Check baking temperature too high or not(. 230? or even higher. Check withstanding capability of the powder.5Luster unstability①Lower luster②Higher luster③Fluctuate luster④Sudden dropping of luster①Check baking temperature and time proper or not and consult powder manufacturer about baking condition. And also water content and humidity of the spray room in addition.②Exam baking temperature and time according to ①. Check luster and workpiece thickness and baking condition.③See it39。⑦加強(qiáng)現(xiàn)場(chǎng)管理。⑥除油除銹不徹底。①調(diào)整溫度和時(shí)間，再作檢驗(yàn)。②掛具反方向傾斜，積液無(wú)法烘烤干。④粉末熔融粘度太低。②檢查輸送鏈接地是否良好。④返工件不要經(jīng)過(guò)磷化，只需打磨，吹凈表面即可。④請(qǐng)?jiān)O(shè)備商調(diào)整測(cè)試。9粉流，粉杠①噴槍開始工作時(shí)，出粉不均勻。④輸粉管彎折，扭曲。②檢查粉末質(zhì)量，是否存在膠化粒子，另檢查磷化后工件表面是否干凈無(wú)雜質(zhì)。⑥檢修懸掛鏈，使之勻速。⑥輸送鏈有擠動(dòng)現(xiàn)象，走速不勻。④檢查溫度是否失控。③光澤上下波動(dòng)。如須停止生產(chǎn)，應(yīng)將所有工件烘烤結(jié)束并下料。②直接燃?xì)膺M(jìn)入烘箱或烘道。⑤鍍鋅板起泡及涂層脫落。鑄件可預(yù)熱，預(yù)熱溫度和時(shí)間視材質(zhì)和厚度而定。④鑄件表面有大而深的孔。③調(diào)整磷化液參數(shù)，注意游離酸溶度不宜過(guò)高。t solidify pletely. Stove temperature or baking time should be lifted moderately.常見噴涂問(wèn)題一覽表 序號(hào)問(wèn)題內(nèi)容主要原因解決措施1針孔①板面銹蝕。 Decrease insulation capability.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。材料準(zhǔn)備 ①干凈的MEK溶劑（甲乙酮）。操作員工的熟練程度。耐腐蝕性降低。與膜厚正常的部位有色差，易露底。膜厚低于要求，可能的影響：Calcium chloride resistance (45 days)no change, not bee soft or foamingImpact resistance (ASTMG/477)=100Density (g/cm)耐氫氧化鈉45天無(wú)變化，無(wú)變軟或起泡柔韌性 mm≤360176。三、產(chǎn)品性狀比重：融點(diǎn)8090℃粒度：180目標(biāo)準(zhǔn)篩通過(guò)工件預(yù)熱時(shí)間：180℃/1015min230℃/58min250℃/2