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熱門關鍵詞：噴塗設備配套解決方案塗裝設備厂家噴塑設備化工設備噴塗設備

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自動化噴塗設備前處理需要注意什麽？

返回列表 作者：鵬鲲自动化噴塗設備编辑： 400-088-0769/18025258586 来源： www.pk316.com 发布日期： 2020.09.01

自动化噴塗設備的前處理即塗裝前對工件表面之氧化皮、鐵鏽、油脂、塵土等汙垢物進行徹底清洗的工序，使塗裝粉體與金屬表面結合牢固、附著力強、從而使産品獲得高品質，延長産品的使用壽命。前處理的一般流程前處理分爲：噴霧式、浸液式、潛泳式三種形式，視工件及具體生産要求選擇處理方式。

自动化噴塗設備的磷化处理是应用于金属表面磷化的前处理技术，属于化学转换膜处理，是一种化学与电化学反应形成磷酸盐化学转化膜的处理过程，可以为金属提供保护作用。它的加工过程是将工件放入磷化液中，在工件表面沉积形成一层不溶于水的结晶型磷酸盐转换膜。磷化处理可以分为很多种，按温度分为高温型、中温型、低温型、常温型，按磷化液分锌系磷化、锌钙系磷化、铁系磷化、锰系磷化、复合磷化，按处理方法分化学磷化、电化学磷化，按施工方法分浸渍磷化、喷淋磷化、刷涂磷化。
磷化處理的特點：增強塗料塗層與工件間的結合。提高塗裝後工件表面塗層的耐蝕性，具有美觀性，使得金屬表面更加平整光亮。可以提高工件的耐磨性。對工件具有潤滑性，對工件具有防鏽性。

自动化噴塗設備的脱脂又称除油，从废水中分离油脂可以用设备隔油池和除油池。在牛奶中脱脂是脱去了乳脂。酸洗：利用酸溶液去除钢铁表面上的氧化皮和锈蚀物的方法称为酸洗。是清洁金属表面的一种方法。

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"Geronimo," mumbled the Apache, "has prayed to the Dawn and the Darkness and the Sun and the Sky to help him put a stop to those bad stories that people put in the papers about him. He is afraid it will be done as they say." The press of the country was full just then, and had been for some time past, of suggestions that the only good use the much-feared Geronimo could be put to would be hanging, the which he no doubt richly deserved. But if every one in the territories who deserved hanging had been given his dues, the land would have been dotted with blasted trees. That night Charles and his chief officers lay at Culloden House, the seat of the able and patriotic Lord-President, Duncan Forbes; but the troops were obliged to lie on the moor amid the heather, which served them both for beds and fuel, the cold being very severe. They were up early in the morning, and formed in order of battle on[106] Drummossie Muir, the part of the heath of Culloden near to Culloden House. No enemy, however, appeared, and there the poor hungry men lay for most of the day with no other food than a biscuit per man. A council of war being called, Lochiel stated this fact as a plea for delay; Lord John Drummond, the Duke of Perth, and others, were of the same opinion; but Lord George Murray declared for making a night march, and surprising the duke's army whilst it would lie, as they supposed, asleep in a drunken debauch. Charles, who had the same idea, but had not yet broached it, embraced Lord George with ardour, declaring it of all things his own wish. The idea was adopted, yet the slightest military wisdom would have shown them the futility of the scheme. The men were in a general state, not only of famine, but of discontent, from the non-payment of their arrears. The night was dark, and the men soon began to stumble through bog and mire, making their march heavy, and causing them to curse and swear. It was soon found that they were so feeble and incapable of walking, even, to say nothing of fighting after a fourteen or fifteen miles' march, on empty stomachs, that it was impossible to make the rear keep up with the van. They had calculated on being at Nairn at two o'clock, but it was that hour before they had all passed Kilravock House, only four miles from the English camp. It was clear that it would be daylight long before they reached Nairn, and they could only get there to be slaughtered in helplessness, for they would be too tired either to fight or run away. It was therefore agreed to return. Nicholas Hawksmoor, a pupil of Wren's, and an assistant of Vanbrugh's in building Castle Howard and Blenheim House, was the architect of St. George's-in-the-East, Ratcliff Highway, begun in 1715; of St. Mary Woolnoth, Lombard Street; of St. George's, Bloomsbury; St. Anne's, Limehouse; of Easton Norton House, in Northamptonshire; and of some other works, including a mausoleum at Castle Howard, and repairs of the west front of Westminster Abbey. St. George's, Bloomsbury, is perhaps his finest structure. It has a Corinthian portico, like St. Martin's, and the steeple is surmounted by a statue of George II. "Not any better'n Sergeant Klegg," responded Harry, taking up the gantlet for his favorite. "Long-legged men are very good in their way, but they don't have the brains that shorter men have. Nature don't give no man everything. What she gives to his legs she takes off his head, my dad says." That blow must be delivered, as We have been advised by Our Councillors. It shall be delivered. 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