日本h番全彩无遮挡h工口-国产精品无码无片在线观看3d-四虎国产成人永久精品免费-广东少妇大战黑人34厘米视频-人人妻人人狠人人爽天天综合网

當前位置:首頁-新聞資訊

如何做好鋁卷成卷前的準備工作?

來源:http://www.kangyanghua.com/ 發布時間:2021-07-01

從悉數市場狀況來看,人們對與產物的需求仍然在不停增添的,相當抵制哪些冒充偽劣產物,而鋁卷也將會成為咱們所需產物的一部分,是它讓咱們的產物更美麗。鋁卷在電子、包裝、建筑、機械等方面得到了管飯的使用。
Judging from all the market conditions, people's demand for products is still increasing, which are quite resistant to fake and shoddy products, and aluminum coil will become a part of the products we need, which makes our products more beautiful. Aluminum coil is widely used in electronics, packaging, construction, machinery, etc.
鋁卷在成卷之前,需求做一些預處理工段,以保證鋁卷表面的干凈。免得其表面存在殘留的油脂及光滑劑,對涂裝及運用發生影響。所以,鋁卷在成型前要對它進行下面幾個方面的預處理。
In order to ensure the cleanness of the surface of the aluminum coil, some pretreatment sections should be done before the coil is formed. So as to avoid the residual grease and smooth agent on the surface, which will affect the coating and application. Therefore, aluminum coil should be pretreated in the following aspects before forming.
,不妨運用熱水對鋁卷進行洗刷。熱水洗刷主若是將基板表面殘留的脫脂劑洗刷干凈,保證這些殘留物能溶解當中,以防這些脫脂劑對基板形成二次污染。運用方式多為浸洗和噴淋刷洗的方式。所用水質硬度不要很高,不然,水中的礦物質會在基板表面生成礦斑。
First of all, you might as well use hot water to wash the aluminum coil. Hot water scrubbing is mainly to clean the residual degreaser on the surface of the substrate, to ensure that these residues can be dissolved, so as to prevent the secondary pollution of the substrate caused by these degreasers. The application methods are mostly immersion and spray brushing. The hardness of the water used should not be very high, otherwise, the minerals in the water will form mineral spots on the surface of the substrate.


其次,熱堿脫脂由于預涂線線速較快,所以所用的脫脂劑通常濃度較高,典型的脫脂劑含有氫氧化鈉(NaOH)、碳酸鈉(Na2Co3)、水玻璃(Na2SiO3)、磷酸鹽等組份。熱堿脫脂工序通常分兩步處理以確保鋁卷基板表面洗刷干凈,且多用噴淋刷洗的方式。
Secondly, due to the fast speed of precoating line, the degreaser used in hot alkali degreasing usually has a high concentration. The typical degreaser contains sodium hydroxide (NaOH), sodium carbonate (Na2CO3), sodium silicate (Na2SiO3), phosphate and other components. The hot alkali degreasing process is usually divided into two steps to ensure that the surface of aluminum coil substrate is washed clean, and spray brushing is often used.
再次,對它進行鈍化處理。鈍化處理是經過加壓噴淋、浸涂或輥涂等方式使鈍化劑在基材表面形成轉化膜。通常運用加壓噴淋的方式,鈍化液在運用過程中發生的泥渣往往會擁塞噴孔,從而影響噴淋得功效。浸涂的方式盡管處理了這一問題,但鈍化液的打發量較大。
Thirdly, it was passivated. Passivation treatment is to form a conversion film on the surface of substrate by pressure spraying, dip coating or roll coating. The sludge generated in the process of using passivation solution will often jam the spray hole, thus affecting the spray efficiency. Although the dip coating method can solve this problem, the amount of passivation solution is large.
以上兩種方式在本質操縱中都需求用水清洗有余的鈍化液,就會發生廢水的收回和凈化問題,輥涂是好的鈍化施工方式,擁有涂布平均、經濟適用、不需淋洗等優勢。鋁板通常選用鉻酸鹽/氧化物型處理劑,該類處理劑含有鉻酸鹽、鉻酸、磷酸及促成劑氟化物和鉬酸鹽。該類處理劑一定加入磷酸,不然就不能用來處理食物和飲料用鋁板。
Both of the above two methods need water to clean the excess passivation solution in the essential operation, which will lead to the recovery and purification of wastewater. Roller coating is a good passivation construction method, which has the advantages of average coating, economic application and no washing. Chromate / oxide type treatment agent is usually used for aluminum plate, which contains chromate, chromic acid, phosphoric acid and promoters fluoride and molybdate. This kind of treatment agent must be added phosphoric acid, otherwise it can not be used to deal with food and drink aluminum plate.

主站蜘蛛池模板: 国产肉丝袜在线观看| 顶级欧美熟妇高潮xxxxx| 中国熟妇人妻xxxxx| 久久久久免费看成人影片| 18禁美女裸体无遮挡网站| 精品久久久久香蕉网| 国产精品久久久久久久久免费| 天天躁夜夜躁狠狠是什么心态| 国産精品久久久久久久| 国产精品乱子乱xxxx| 久久精品国产亚洲av麻豆色欲| 人妻少妇精品无码专区二区| 好男人社区影院www| 一区二区三区国产| 色老头在线一区二区三区| 三年片大全在线观看| 97久久综合亚洲色hezyo| 国产香蕉一区二区三区在线视频| 无码毛片视频一区二区本码| 久久久久亚洲精品无码网址色欲| 久久人人爽人人爽人人av| 热re99久久精品国99热| 免费人成视频x8x8| 麻豆完整视频免费观看| 国产欧美一区二区三区在线看| 熟妇人妻系列aⅴ无码专区友真希| 亚洲av无码片在线观看| 中文字幕人妻中文av不卡专区| 强行糟蹋人妻hd中文字幕| 亚洲国产另类久久久精品网站| 又大又硬又黄的免费视频| 国产av无码专区亚洲av麻豆丫| 久久久久久久综合狠狠综合 | 国产偷倩视频| 成年片色大黄全免费网站久久| 国产女人好紧好爽| 国内精品久久久久影院薰衣草| 猫咪av永久网址www大全| 丁香美女社区| 最近高清中文在线字幕在线观看 | 久久久国产精品亚洲一区|