静电粉末喷涂设备销售供应:家电粉末涂装前处理工艺
静电粉末喷涂设备销售供应:家电粉末涂装前处理工艺
(1)饮水机壳体的涂装前处理工艺
热水洗(30s,50~65 ℃ ) → 预脱脂(60s,50~65 ℃)→脱脂(150s,50~65 ℃) →水洗1(直排)→水洗1[30s,室温(RT)]→水洗2(30s,RT)→新鲜水直喷→表调(30s,RT)→磷化(150s,50~60 ℃)→水洗3(30s,RT)→水洗4(30s,RT)→新鲜纯水直喷。
(2)空调器壳体涂装前处理工艺
热水洗(40s,50~65 ℃) →预脱脂(80s,50~65℃ ) →脱脂(120s,50~65℃ ) →水洗1(45s,RT)→水洗2(50s,RT)→新鲜水直喷→表调(45s,RT)→磷化(150s,38~45 ℃) →水洗3(45s,RT)→水洗4(50 s,RT)→纯水洗(50s,RT)→新鲜纯水直喷。
(3)一种特殊的涂装前处理工艺
脱脂磷化(90s,120~140 ℃ )→水洗1(60s,120~140 ℃ )→纯水喷(5s,RT)→水洗2(60s,RT)→纯水喷(5s,RT)。