濟(jì)南鋁板如何去除氧化膜和油?
濟(jì)南鋁板http://www.pdadn.com/常用除油液的配比為:NaOH的質(zhì)量鈉等緩蝕劑及葡萄糖酸鈉、脂肪酸聚氧乙烯醚類增溶、絡(luò)合等表面活性劑。除油液的溫度通常 控制在55~60℃左 右,除油的效果與溶液的溫度有關(guān)。若溫度太高,則對(duì)鋁板基嚴(yán)重腐蝕,因而必須控制溫度。除油的時(shí)間必須經(jīng)過認(rèn)真對(duì)比最后確定。因?yàn)椋c各種不同 生產(chǎn)線有關(guān)。卷筒生產(chǎn)線則與生產(chǎn)線的速度有關(guān),以4m/min為例,除油時(shí)間必須這到20s,其效果才能給以保證。除油液必須注意及時(shí)更新,因?yàn)樵诔瓦^程中會(huì)生成大量的皂化物、乳化物和鋁鹽, 它們的存在影響除油效果,并阻礙對(duì)鋁板表面油污的皂化和乳化,當(dāng)發(fā)現(xiàn)除油效果不強(qiáng)時(shí),必須及時(shí)更新。
Jinan addition to oil ratio of aluminum used for: inhibitor of sodium gluconate and sodium NaOH quality, fatty acid polyoxyethylene ethers solubilization, complexation and other surfactants. In addition to the oil temperature is usually controlled at 55 ~ 60 ℃, the temperature of the solution of the degreasing effect related. If the temperature is too high, severe corrosion of aluminum-based, and therefore the temperature must be controlled. Degreasing of time must be finalized after careful comparison. Because, it related to a variety of different production lines. Production line reel and the production line speed is related to 4m / min as an example, this time must be degreased to 20s, in order to give effect guaranteed. Care must be taken to date in addition to oil,because oil removal process will generate a lot of unsaponifiables, emulsion and aluminum salts, their presence affects degreasing effect on the aluminum surface and hinder saponification and emulsification of oil, when oil was found the effect is not strong, it must be updated.
通常若通過堿泵進(jìn)行循環(huán)時(shí),除油液能保持較長(zhǎng)時(shí) 間,若不循環(huán)則更新 時(shí)間縮短。檢查除油效果最簡(jiǎn)單的辦法是用水。除油效果好的鋁板表面水能均勻地附著分散,若水倒上后,表面呈水珠狀,則說明除油效果不好。除油的溫度要經(jīng)常注意, 除油液的溫度過低,則可能造成除油不徹底。
Typically if the pump is circulated through the base, in addition to oil can be maintained for a long time, if the update cycle time is shortened. Check the degreasing effect easiest way is to water. Degreasing effect of a good aluminum surface water can disperse uniformly attached, after Flow down on the surface was like drops of water, then the oil is not effective. Degreasing temperature should always pay attention to, in addition to the oil temperature is too low, it may cause oil is not complete.
濟(jì)南鋁板http://www.pdadn.com/的粗化是為了形成具有要求粗糙度的砂目結(jié)構(gòu),粗化既可提高鋁板基表面對(duì)水的親和力,提高板基表面濕潤(rùn)量,防止版面上臟;同時(shí)粗化后的表面還可提高版同與感光劑的附著力,進(jìn)而提高印版的耐印力。粗化后的砂目是由無(wú)數(shù)的凸峰和凹谷組成,不同的砂目結(jié)構(gòu),對(duì)保水性感光層的附著力影響較大。
Jinan roughened aluminum plate is formed having a desired roughness to the graining structure, can improve the roughened aluminum substrate surface affinity for water, the amount of wetting the surface of the base plate to improve, to prevent the layout dirty; while also roughened after improve adhesion version with photosensitive agent, thereby increasing resistance to Indian forces plate. Roughening after graining is composed of numerous convex peaks and valleys composition, different graining structure, the water retention of adhesion of the photosensitive layer is greater impact.
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