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堿洗alkali washing——輕微鏤蝕slightly carved and corroded(除油

remove oil) 鋁板廠家

●水洗water washing——清水湍流沖洗wash by clean rushing water

●水洗water washing——清水湍流沖洗wash by clean rushing water

●酸洗 acid washing——去除氧化物remove oxide(中和neutralize)

●水洗water washing——清水湍流沖洗wash by clean rushing water

●轉(zhuǎn)化層conversion layer——無(wú)定型鉻酸鹽chromate(鉻化chromating)

●水洗water washing——清水湍流沖洗wash by clean rushing water

Aluminum product should be dried according to the requirements.(80℃)

(十)靜電噴涂

1.涂料配制 對(duì)5052鋁板工件噴面進(jìn)行光磨然后按要求水洗烘干

2.靜電噴涂:噴底漆烘烤噴面漆烘烤噴罩光漆烘烤

3.高溫固化

4.品質(zhì)檢驗(yàn)

●底漆5um—10um;面漆25um—35um;清漆10um—20um

●平均漆膜厚度:二涂≥30um;三涂≥40um;四涂≥50um

●氟碳涂膜的色差檢驗(yàn)標(biāo)準(zhǔn) 5052鋁板

●按GB/T9761,在非直射自然光或均勻光源下,目視檢查試件或產(chǎn)品的顏色均勻性,

目視檢查距離為10M;單色涂料用電腦色差儀△E≤2.0NBS

●氟碳涂膜的光澤檢驗(yàn)標(biāo)準(zhǔn) 5052鋁板

●按GB/T9754,用60°光度計(jì)測(cè)量試件或產(chǎn)品的光澤度,至少到10個(gè)讀數(shù),并計(jì)

●氟碳涂層外觀質(zhì)量的要求標(biāo)準(zhǔn)

●在自然光下3M遠(yuǎn)的垂直角度5052鋁板目視涂層表面時(shí),涂層應(yīng)無(wú)流痕、氣泡、夾雜

●物或其它表面缺陷。對(duì)于涂層表面上的輕微劃傷,可采用室固化體系的氟碳(自干

漆)漆來(lái)修補(bǔ)。

●修補(bǔ)(72小時(shí))后,應(yīng)與原涂層的顏色和光澤一致

●氟碳涂膜的干膜標(biāo)準(zhǔn)