电镀与涂饰
電鍍與塗飾
전도여도식
ELECTROPLATING & FINISHING
2014年
10期
433-436
,共4页
汽车涂装%电泳漆%泳透力%薄膜%配套性
汽車塗裝%電泳漆%泳透力%薄膜%配套性
기차도장%전영칠%영투력%박막%배투성
automobile coating%electrophoretic paint%throwing power%thin film%matchability
ED7000高泳透力薄膜电泳漆由某国际汽车涂料供应商所研发，能够满足白车身高泳透力的需求，并可降低涂料消耗和能耗。将ED7000乳液和色浆按8∶1的质量比在小型电泳槽内混合，加入纯水调整固体分至23%左右，在(32±2)°C下熟化48 h后进行相关的认证实验，测试了槽液参数和漆膜性能；将该电泳漆与三涂三烘工艺、免中涂工艺以及PVC、聚氨酯玻璃胶和玻璃水等进行相关的配套性试验，并在生产线进行试生产。研究表明，ED7000电泳漆具有高泳透力、低膜厚(15μm以下，含磷化层，可节约12%的涂料)、施工范围宽、槽液容易管理的优点。但它也存在电泳电压较高(高于常规工艺20 V左右)、粗糙度稍差(Ra为0.30~0.35μm)、顶盖上膜困难等缺点，适合在电泳面积较小的A级车和B级车上使用。
ED7000高泳透力薄膜電泳漆由某國際汽車塗料供應商所研髮，能夠滿足白車身高泳透力的需求，併可降低塗料消耗和能耗。將ED7000乳液和色漿按8∶1的質量比在小型電泳槽內混閤，加入純水調整固體分至23%左右，在(32±2)°C下熟化48 h後進行相關的認證實驗，測試瞭槽液參數和漆膜性能；將該電泳漆與三塗三烘工藝、免中塗工藝以及PVC、聚氨酯玻璃膠和玻璃水等進行相關的配套性試驗，併在生產線進行試生產。研究錶明，ED7000電泳漆具有高泳透力、低膜厚(15μm以下，含燐化層，可節約12%的塗料)、施工範圍寬、槽液容易管理的優點。但它也存在電泳電壓較高(高于常規工藝20 V左右)、粗糙度稍差(Ra為0.30~0.35μm)、頂蓋上膜睏難等缺點，適閤在電泳麵積較小的A級車和B級車上使用。
ED7000고영투력박막전영칠유모국제기차도료공응상소연발，능구만족백차신고영투력적수구，병가강저도료소모화능모。장ED7000유액화색장안8∶1적질량비재소형전영조내혼합，가입순수조정고체분지23%좌우，재(32±2)°C하숙화48 h후진행상관적인증실험，측시료조액삼수화칠막성능；장해전영칠여삼도삼홍공예、면중도공예이급PVC、취안지파리효화파리수등진행상관적배투성시험，병재생산선진행시생산。연구표명，ED7000전영칠구유고영투력、저막후(15μm이하，함린화층，가절약12%적도료)、시공범위관、조액용역관리적우점。단타야존재전영전압교고(고우상규공예20 V좌우)、조조도초차(Ra위0.30~0.35μm)、정개상막곤난등결점，괄합재전영면적교소적A급차화B급차상사용。
ED7000 electrophoretic paint is a high-throwing-power and thin-film product developed by an international automobile coating supplier to meet the requirement of high throwing power for coating the car bodies in white and decrease the consumption of coating materials and energy. In the paper, the ED7000 emulsion and the pigment paste were mixed with a mass ratio of 8 to 1 in a small electrophoretic tank, followed by adding water to adjust solid content of the bath to about 23% and curing at (32±2) °C for 48 h. Some attestation tests were carried out, and the bath parameters and coating properties were examined. Whether the electrophoretic paint can be matched with the 3-coat-3-bake or midcoat-free process as well as the PVC, polyurethane glass adhesive, and water glass were studied. The trial production was carried out on a real production line. It was found that the ED7000 paint has advantages of high throwing power, low film thickness (less than 15μm with a phosphating layer, saving 12%of coating material), wide ranges of construction conditions, and easy bath management. The disadvantages of the paint are high electrophoretic voltage (20 V higher than that of a conventional process), worse roughness (Ra=0.30-0.35μm), and difficulty in coating the top. The paint is suitable to be applied to A- and B-class cars with smaller areas to be coated by electrophoresis.
