少妇无码吹潮久久精品AV_無(wú)鉻鈍化前鍍鋅處理的重要性-濰坊潤茂環(huán)?？萍加邢薰?/title> <meta name="Keywords" content="無(wú)鉻鈍化劑,防爆劑,防漏鍍劑,酸洗助劑,酸霧抑制劑" > <meta name="Description" content=" 無(wú)鉻鈍化前鍍鋅的目的是為了防止金屬的腐蝕。由于鍍鋅大多數情況是在鋼鐵表面進(jìn)行的，讓我們一起來(lái)看看常見(jiàn)關(guān)于鋼鐵的腐蝕問(wèn)題。這種腐蝕發(fā)生非常普遍。據統計，全世界每年有四分之一的鋼鐵損失在這種腐蝕當中。我們平時(shí)看到的鋼管，鋼板等表面長(cháng)了一層黃色鐵銹，就是這種腐蝕造成的。如何防止金屬腐蝕呢？常用的方法有許多種。其中電鍍一層或多層不易生銹的金屬將空氣與鋼鐵表面隔離開(kāi)來(lái)，就是一種非常有效的方法。在所有電鍍的多種金屬中，電鍍鋅防銹能力最好的金屬。俗..."> <link rel="stylesheet" href="/template/pc/cn/css/nei.css"> <link rel="stylesheet" href="/template/pc/cn/css/animate.css" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://m.773568.com/">久久99精品国产99久久6尤物_91精品国产aⅴ一区二区_国产一区二区三区日韩_精品成在人线av无码免费看</a></h1> <div class="pl_css_ganrao" style="display: none;"></div><div id="ev24a" class="pl_css_ganrao" style="display: none;"><strike 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id="7deefxi" class="ny_tit"> <h1>無(wú)鉻鈍化前鍍鋅處理的重要性</h1> <p>發(fā)布時(shí)間:2021-12-14 本文被閱讀 :961次 </p> </div> <div id="2tmng8b" class="ny_contxt"> <p> 無(wú)鉻鈍化前鍍鋅的目的是為了防止金屬的腐蝕。由于鍍鋅大多數情況是在鋼鐵表面進(jìn)行的，讓我們一起來(lái)看看常見(jiàn)關(guān)于鋼鐵的腐蝕問(wèn)題。</p><p><br/></p><p>這種腐蝕發(fā)生非常普遍。據統計，全世界每年有四分之一的鋼鐵損失在這種腐蝕當中。我們平時(shí)看到的鋼管，鋼板等表面長(cháng)了一層黃色鐵銹，就是這種腐蝕造成的。</p><p><br/></p><p>如何防止金屬腐蝕呢？常用的方法有許多種。其中電鍍一層或多層不易生銹的金屬將空氣與鋼鐵表面隔離開(kāi)來(lái)，就是一種非常有效的方法。在所有電鍍的多種金屬中，電鍍鋅防銹能力最好的金屬。</p><p><br/></p><p>俗話(huà)說(shuō)，工欲善其事，必先利其器。無(wú)鉻鈍化前的鍍鋅需要先將表面進(jìn)行處理，以除去表面毛刺，油污和銹蝕物，以保證鍍層的結合力和表面的一致性。</p><p><br/></p><p>無(wú)鉻鈍化前的鍍鋅件在加工過(guò)程中因加工歷程，方法不同而表面狀態(tài)各異。盡管金屬材料保存環(huán)境和加工類(lèi)型不同，但表面都會(huì )形成各種附著(zhù)物或變質(zhì)物的薄層，這些附著(zhù)物和變質(zhì)物的存在都影響基體與鍍層的結合力。</p><p><br/></p><p>無(wú)鉻鈍化前的鍍鋅件在經(jīng)過(guò)切削，沖壓，鍛造等機械加工之后，將形成與材料內部的組織，結構不同的表面層，被稱(chēng)為加工層。而加工層與材料組織摻雜狀態(tài)的層帶稱(chēng)作擴散層。加工層和擴散層盡管在組織，結構上與基體材料有所不同，但都是金屬材料。使基體與鍍層形成良好的結合程度。所以，在電鍍之前，一定要將加工層與擴散層之上的氧化層，銹蝕層和油污層除干凈，才能獲得與基體結合良好的鍍層。</p><p><br/></p> </div> <div 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