汽车维修帕萨特在线匹配是用5054的步骤是什么

2025-04-06 07:14:39
推荐回答(1个)
回答1:

1. 表面处理(1) 用铲刀、钢丝刷等清除表面涂层、铁锈、焊渣,焊口较大处用砂轮打磨平整,用1.5—2.5号砂布打磨,清除底层表面锈蚀和杂物。(2) 用溶剂将划痕处冼净,晾干。(3) 涂上一层薄薄的底漆。(4) 在底漆面上涂一层防锈漆。 2. 刮涂腻子(1) 将速干原子灰覆盖在金属层上;(2) 原子灰干燥后,用400号干砂纸将原子灰打平;(3) 用脱蜡清洗剂将划痕处擦净。 3. 喷涂中涂层(1) 将不喷漆的地方用专用胶纸遮盖;(2) 先用喷枪轻轻地喷上两道底漆,然后再喷第二层较厚的底漆,并使其干燥;(3) 用600号砂纸将底漆磨平;(4) 如果划痕处仍低于漆面,可再喷涂3—5层底漆,并重复清洁步骤;(5) 用1500—2000号砂纸将周围部分打平,再用溶剂擦净; 4. 喷涂面涂(1) 喷漆:选用与原车色漆配套的面漆,按原车颜色调配,并调至符合施工要求的粘度,经过滤后再进行喷涂施工。每喷涂一遍之后,应有涂膜需要的流平时间,然后再一遍一遍地进行喷涂。使第一次面漆涂层达到30um—40um厚度。涂料在涂覆后应有足够的流平和晾干的时间,常温干燥一般2h以上。(2) 温磨:用280—320号水磨砂纸在喷涂四层的涂膜其础上将涂膜打磨平整光滑。用抹布、压缩空气边吹边擦洁净。并使之表面干燥,可加热干燥,也可自然晾干。但自然晾干时,时间较长,应注意防止粉尘污染涂膜表面。(3) 罩光:在原有面漆内,加清漆20%以下,再适当加入稀释剂混合使用,以增加光洁度。其粘度以15s/25Oc为宜。经过滤后再喷涂。喷后流平性要好,以便第二天易于抛光打蜡。总厚度为80—110um。 5. 抛光上蜡(1) 将喷涂完并干燥后的车身,拆除遮盖物。(2) 用400—500号水磨砂纸带水将车身表面满磨至涂膜表面光滑平整为止。打磨长度来回在100mm以内。(3) 用抛光剂打磨。先用抹布将涂层表面擦净。用呢绒、海绵等浸润抛光剂进行抛光。(4) 抛光之后再上光蜡抛出光泽,使其表面光亮如新。

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