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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_tzsb/">涂裝設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-tzsb_qclsb/">前處理設(shè)備</a>?杭州化學(xué)鎳處理推薦咨詢上海昊琳化工供應(yīng)</p><div id="oykcoah" class="leftbox clearfix"><h1>杭州化學(xué)鎳處理推薦咨詢上海昊琳化工供應(yīng)</h1><div id="qaszb2z" class="proBig"><div id="vkmeq37" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637335432758496094/6919015.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="azl29fy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637335432758496094/6919015.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lkwyp39" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>杭州化學(xué)鎳處理,前后處理劑</p><p><span>***更新：</span>2021-01-19 05:13:49</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="r7t8bl7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海昊琳化工有限公司</a></p><p><span>聯(lián)系人：</span>彭**</p><p><span>郵箱: </span>SHHL668@163.com</p><p><span>電話: </span>13917612469</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://haolin123.shop.88360.com</p><p><span>手機(jī): </span>021-59220920</p><p><span>地址: </span>白鶴鎮(zhèn)白石公路1360路28號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="utaxov2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="c9yhtqh" class="box"><p><p style="text-indent:25px">后處理劑陽離子樹脂型無醛固色劑可用雙氰胺、二乙烯三胺與羥甲基尿素反應(yīng)生成咪唑啉，具有陽離子性，即為固色劑DFRF-1(上海紡織助劑廠生產(chǎn))，嚴(yán)格地說，固色劑DFRF-1不能稱為無醛固色劑。因為它們還是要用2D樹脂或羥甲基脲作交聯(lián)劑，只能稱作低甲醛固色劑。用二乙烯三胺與雙氰胺縮合、脫氨并經(jīng)環(huán)構(gòu)化，制得咪唑啉結(jié)構(gòu)的固色劑SH-96，也是樹脂型固色劑。其缺點是有色變現(xiàn)象。用雙氰胺做原料的固色劑都有色變現(xiàn)象，故需控制使用量，以減少其色變程度。用雙氰胺與乙二醛縮合，可生成環(huán)狀結(jié)構(gòu)縮合物，杭州化學(xué)鎳處理，杭州化學(xué)鎳處理，在一般情況下，不會釋放醛，也具有固色效果。使用雙氰胺為原料制成的樹脂型固色劑，杭州化學(xué)鎳處理，色澤偏深，常為棕褐色或淺褐色溶液。金屬前后處理劑適用金屬裝飾性的多層鍍層與單層鍍層。杭州化學(xué)鎳處理</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州化學(xué)鎳處理,前后處理劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637335432758496094/6919015.png"></div><p style="text-indent:25px">金屬電鍍前后處理劑的磷化液：磷化是金屬材料防腐蝕的重要方法之一,其目的在于給基體金屬提供防腐蝕保護(hù)、用于噴漆前打底、提高覆膜層的附著力與防腐蝕能力及在金屬加工中起減摩潤滑作用等。磷化是常用的前處理技術(shù)，原理上應(yīng)屬于化學(xué)轉(zhuǎn)化膜處理。工程上應(yīng)用主要是鋼鐵件表面磷化，但有色金屬如鋁、鋅件也可應(yīng)用磷化。鋼鐵表面涂裝前處理工藝指脫脂（除油）、除銹、表調(diào)、磷化。然而由于工件表面的狀況不同，則生產(chǎn)工藝也有所不同，有的工藝中沒有脫脂或沒有除銹工序，有的工藝則沒有表面調(diào)整工序，但磷化工序是肯定不可缺少的。杭州化學(xué)鎳處理前處理劑脫脂劑可分為酸性脫脂劑、堿性脫脂劑、中性脫脂劑這三類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州化學(xué)鎳處理,前后處理劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637335432606845704/5912838.png"></div><p style="text-indent:25px">后處理劑交聯(lián)劑也叫固化劑、硬化劑、熟化劑，它能使線型或輕度支鏈型的大分子轉(zhuǎn)變成三維網(wǎng)狀結(jié)構(gòu)，以此增加強(qiáng)度、耐熱性、耐磨性、耐溶劑性等性能，可用于發(fā)泡或不發(fā)泡制品。對于不同的交聯(lián)劑，應(yīng)當(dāng)選擇適其所用的交聯(lián)劑，對交聯(lián)劑則有如下一些要求：⑴交聯(lián)劑的活性基團(tuán)能與膠黏劑中組分反應(yīng)形成交聯(lián)結(jié)構(gòu)。⑵交聯(lián)效率高，只要加入少量便可獲得穩(wěn)定的交聯(lián)結(jié)構(gòu)。⑶交聯(lián)速度適宜，過快過慢都不利。⑷幾種交聯(lián)劑混合使用，可獲得較佳的綜合效果。⑸交聯(lián)劑在工藝處理和儲存期內(nèi)穩(wěn)定，不發(fā)生有害反應(yīng)和凝聚作用。無毒害、無刺激性、不污染環(huán)境。</p><p style="text-indent:25px">前處理劑脫脂劑施工時的注意事項：1、使用脫脂劑時要穿戴好防護(hù)用品，特別戴好防護(hù)眼鏡。2、開啟桶蓋時千萬不要將臉正對桶口。3、如不慎濺到皮膚上，應(yīng)立即用大量清水沖洗。4、運輸時嚴(yán)禁野蠻裝卸，按規(guī)定裝載，較高不超過2層，嚴(yán)禁倒放或倒置。5、碼放時不得超過2層高，遠(yuǎn)離火源。6、涂本品時不宜過多，過多浪費；但也不宜過少，過少起不到作用，應(yīng)視脂膜厚度現(xiàn)場而定。7、如桶內(nèi)充滿氣體時，應(yīng)慢慢開啟桶蓋，不要猛然開啟，以免發(fā)生瀑濺。金屬前后處理劑的磷化是常用的前處理技術(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州化學(xué)鎳處理,前后處理劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637335432676230469/9383399.png"></div><p style="text-indent:25px">用于金屬電鍍前后處理劑技術(shù)的堿性鍍液配方：制作方法:(1)用1/2的蒸餾水將氫氧化鈉充分溶解后再加入定量ZnO,攪拌溶解后備用;(2)用1/3的蒸餾水將氯化鎳充分溶解,再分別加入定量乙二胺和三乙醇胺絡(luò)合,靜置2h以上備用;(3)將步驟(1)(2)的溶液混合在一起,并加蒸餾水至所需容積后充分?jǐn)嚢?，靜置24h,使用前將鍍液過濾即可使用。注意事項:主鹽鎳的補充可通過濃縮液進(jìn)行,鋅的補充通過濃縮液或控制鋅陽極板浸入鍍液的面積進(jìn)行。乙二胺濃度穩(wěn)定在25mL/L左右,化學(xué)藥劑為工業(yè)純級,鍍液配制用水應(yīng)為工業(yè)純水,配制鍍液過程應(yīng)進(jìn)行攪拌,靜置應(yīng)不短于2h。后處理劑交聯(lián)劑又稱作架橋劑，是聚烴類光致抗蝕劑的重要組成部分。杭州化學(xué)鎳處理</p><p style="text-indent:25px">金屬前后處理劑硅酸鈉有膠溶、分散等作用，清洗效果較好。杭州化學(xué)鎳處理</p><p style="text-indent:25px">使用前處理劑脫脂劑脫脂后處理應(yīng)注意的事項：1、多級水洗。通常進(jìn)行2道以上水洗(浸漬或噴淋，噴淋更適用帶縫隙工件)，一般還認(rèn)為熱水洗優(yōu)于冷水洗，這對于氧化皮較厚的鋼板和需要酸洗的工件來說是必要的，但對于只需脫脂的幾件來說是不利的。因為當(dāng)工件離開熱水洗進(jìn)人滴水區(qū)時，表面干洞，接觸空氣中的氧氣而易生銹二所以，經(jīng)冷水洗為宜。2、合理設(shè)計水槽。安裝一個溢流口(供水洗過程中保持溢流狀態(tài))和中間漏斗，進(jìn)水口位于操作面，水管直通槽底至槽高2/3處，有利于新鮮水循環(huán)良好。杭州化學(xué)鎳處理</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2910795.html</p></div></div></div></div></div><div id="onkw5gy" class="page-right twoColRt"><div id="vkco9sz" class="box01 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