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                            镀锌层(镀锌板、镀锌管)表面涂装前的处理工艺

                             

                            随着镀锌层材料的普及,镀锌层(镀锌板、镀锌管)表面涂装前的处理显得尤为重要,JF-PG527镀锌层磷液是一款不含铬的环保型的镀锌板表面处理剂,使其表面附着一层均匀致密的化学转化膜,可增强镀锌层的抗腐蚀和防变色能力,以及增加油漆或塑膜的黏附力?#28034;?#34837;变力。  推荐通用工艺如下:

                             

                             

                             

                            1、前处理工艺:

                            工件 →人工预处理→①槽JF-CL188除油(10%配水、常温-60℃、15分钟或除净为止)→ ②槽一级水洗(1-3分钟)→③槽JF-CL181多功能常温脱脂剂5%配水、常温、1-3分钟)→④槽二级水洗(1-3分钟)→⑤槽三级水洗(1-5分钟)→ ⑥槽PL-201胶钛表调剂表面调整(0.5-2分钟)→⑦JF-PG527镀锌层磷化处理5%配水、常温~506min15min)→⑧槽四级水洗(1-5分钟)→⑨槽五级水洗(1-3分钟)→?#21248;环?#24178;燥或烘干→喷涂

                             

                            2、工艺分析

                            1、 人工预处理为人工方法除去工件表面重油污垢等一切对处理槽液不利之物质。

                            2、 除油采用JF-CL188常温除油剂,10%配水,常温-60℃,5-20分钟,配合超声波清洗机清洗最?#36873;?span lang="EN-US">

                            3、 每级水洗都要使工件在水洗槽中来回上下循环运动漂洗多次,最好采用溢流水洗。

                            4、 JF-CL181多功能常温脱脂剂3-5%配洁净水,常温,1-3分钟,配合超声波清洗机清洗最?#36873;?b>

                            5、 表面调整采用PL-201胶钛表调剂2-3‰建浴,在8.5-9.5常温,0.52分钟。建议槽液变成黄褐色时应弃掉重新建浴

                            6、 JF-PG527镀锌层磷化液5%配水,常温~506min15min磷化成膜后建议可在冷水水洗后用80以上的热水再洗一次,再直接在120150温度下烘烤515分钟,以增强磷化膜的抗蚀、抗压的性能。

                            2012年02月25日

                            钢铁件阀门灰黑色磷化处理介绍
                            JF-PC307灰黑色耐蚀磷化工艺

                            镀锌层(镀锌板、镀锌管)表面涂装前的处理工艺


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