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://m.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: 欧美另类精品xxxx人妖| 99久久婷婷国产综合亚洲| 最新亚洲人成网站在线观看| 无码视频一区二区三区| 十八岁污网站在线观看| 亚洲av永久无码天堂网| 777久久精品一区二区三区无码| 国产va在线观看免费| 又爽又黄又无遮挡网站动态图| 亚洲丰满熟女一区二区v| 国产成人综合亚洲看片| 国产丰满美女a级毛片| 天天爽天天狠久久久综合麻豆| 亚洲无线看天堂av| 精品久久久久久成人av| 啦啦啦免费视频播放| 亚洲熟妇av一区二区三区浪潮| 日韩高清在线中文字带字幕| 久久夜色精品国产噜噜亚洲sv| 亚洲av无码成人网站久久精品大 | 午夜影院0606免费| 呦系列视频一区二区三区| 久久人妻无码一区二区三区av| 又粗又黄又硬又爽的免费视频| 亚洲人成色7777在线观看不卡| 国模雨珍浓密毛大尺度150p| 欧美成人片一区二区三区| 欧美v国产v亚洲v日韩九九| 亚洲妇女无套内射精| 日韩视频在线观看| 伊人久久大香线蕉亚洲| 国产精品久久久亚洲| 一本色道久久综合亚洲精品| 色两性网欧美| 吃奶呻吟打开双腿做受动态图| 亚洲国产成人片在线观看无码| 亚洲人精品午夜射精日韩| 久久久国产打桩机| 99无码熟妇丰满人妻啪啪| 在线天堂资源www在线中文 | 爽爽影院免费观看|