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</span><div id="vxefm7f" class="searchbox"><div id="cxtk4lp" class="searchLt"><div id="kypl4gx" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="27uvuq8" class="clearfix searchWrap"><div id="swd7c7l" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="tiu4irf" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="c3lcght" class="twoCol"><div id="cioxgmd" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_huanbao/">環(huán)保</a>?<a href="http://www.cdcfah.com/cp/second-huanbao_xifuji/">吸附劑</a>?<a href="http://www.cdcfah.com/cp/third-xifuji_qitaxifuji/">其他吸附劑</a>?寧波助焊劑危害歡迎來電杭州正盟環(huán)保工程供應(yīng)</p><div id="8uajawn" class="leftbox clearfix"><h1>寧波助焊劑危害歡迎來電杭州正盟環(huán)保工程供應(yīng)</h1><div id="gtfbs7e" class="proBig"><div id="h8lxjsy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274609375/2746468.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8bnevhy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274609375/2746468.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zlxyfbs" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>寧波助焊劑危害,助焊劑</p><p><span>***更新：</span>2020-09-11 14:03:54</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="imykbn3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">杭州正盟環(huán)保工程有限公司</a></p><p><span>聯(lián)系人：</span>李先生</p><p><span>郵箱: </span></p><p><span>電話: </span>13771706346</p><p><span>傳真: </span>0571_</p><p><span>網(wǎng)址: </span>http://www.hzzmhbgc.com</p><p><span>手機: </span>0571-88117763</p><p><span>地址: </span>順風(fēng)路528號2號樓南樓東向3層</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="7wi827u" class="page-proshow02"><p class="title">詳細說明</p><div id="vub3tpb" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！磕壳皣鴥?nèi)常用的可靠性評價試驗主要為：表面絕緣阻抗測試，其次銅鏡腐蝕測試、離子濃度測試、軟釬焊性試驗等。銅鏡腐蝕測試將欲測試的免清洗助焊劑滴在銅板(40.0mm×40.0 mm×0.2 mm)上，使其自然漫流，然后放人80℃的烘箱中烘2 h，取出冷卻后再放入潮濕箱(溫度40℃，濕度93%)中72 h查看銅板的顏色變化，如顏色變?yōu)樯罹G，則發(fā)生了腐蝕，如顏色無變化或有殘渣，則表明未發(fā)生腐蝕現(xiàn)象。不粘附性試驗將粉筆末撒到此種涂有免清洗助焊劑焊料的表面，然后擦去，不粘附；用紗布方法試驗，紗布上看不到助焊劑殘留物，試板上也無明顯紗布痕跡。說明此種免清洗助焊劑的不粘附性性能優(yōu)良。軟釬焊性試驗在涂有免清洗助焊劑的清潔銅板(50 mm×50mm×1 mm)**放上HLSnPb50(D8 mm×4 mm)釬料，釬料上分別滴上兩滴助焊劑，寧波助焊劑危害，然后置于275℃的恒溫箱內(nèi)1 min，取出測其漫流面積，寧波助焊劑危害，據(jù)此可判斷助焊性能的強弱，寧波助焊劑危害。生產(chǎn)水基環(huán)保免清洗焊劑、光伏組件助焊劑廠家。寧波助焊劑危害</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波助焊劑危害,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274609375/2746468.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑作用助焊劑中的主要起作用成分是松香，松香在260攝氏度左右會被錫分解，因此錫槽溫度不要太高．助焊劑是一種促進焊接的化學(xué)物質(zhì)。在焊錫中，它是一種不可缺少的輔助材料，其作用極為重要。溶解焊母氧化膜在大氣中，被焊母材表面總是被氧化膜覆蓋著，其厚度大約為2×10-9～2×10-8m。在焊接時，氧化膜必然會阻止焊料對母材的潤濕，焊接就不能正常進行，因此必須在母材表面涂敷助焊劑，使母材表面的氧化物還原，從而達到消除氧化膜的目的。被焊母材再氧化母材在焊接過程中需要加熱，高溫時金屬表面會加速氧化，因此液態(tài)助焊劑覆蓋在母材和焊料的表面可防止它們氧化。寧波助焊劑危害長期生產(chǎn)質(zhì)量環(huán)保級助焊劑，免清洗焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波助焊劑危害,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】松香和焊錫膏兩者有何分別？無機助焊劑一般是某些酸或者鹽，比如正磷酸H3PO4，有機助焊劑主要是某些有機酸或者有機鹵素；相對來說，無機助焊劑活性相當(dāng)強，去除氧化膜效果較好，但腐蝕性也強，很容易傷及金屬及焊點，一般不能在焊接電子產(chǎn)品中運用。焊錫膏就是用機油乳化后的無機焊劑，焊接后可用溶劑清洗，不過電路板的有些部位是很難清洗的，所以一般不推薦運用焊錫膏。有機助焊劑活性僅次于無機助焊劑，也有一定的腐蝕性，且殘渣不易清洗，揮發(fā)物對人體有害。松香的主要成份是松香酸和海松酸，一般成中性，液態(tài)松香有一定活性，呈現(xiàn)較弱的酸性，能與金屬表面氧化物發(fā)生反應(yīng)，生成松香酸銅等化合物，并懸浮在焊錫表面，且運用的時候無腐蝕，絕緣性強。一般說來，松香是常用的助焊劑。</p><p style="text-indent:25px">【正盟環(huán)?！恐竸╢lux）：在焊接工藝中能幫助和促進焊接過程，同時具有保護作用、阻止氧化反應(yīng)的化學(xué)物質(zhì)。助焊劑可分為固體、液體和氣體。主要有“輔助熱傳導(dǎo)”、“去除氧化物”、“降低被焊接材質(zhì)表面張力”、“去除被焊接材質(zhì)表面油污、增大焊接面積”、“防止再氧化”等幾個方面，在這幾個方面中比較關(guān)鍵的作用有兩個就是：“去除氧化物”與“降低被焊接材質(zhì)表面張力”。助焊劑通常是以松香為主要成分的混合物，是保證焊接過程順利進行的輔助材料。焊接是電子裝配中的主要工藝過程，助焊劑是焊接時使用的輔料，助焊劑的主要作用是去除焊料和被焊母材表面的氧化物，使金屬表面達到必要的清潔度.它防止焊接時表面的再次氧化，降低焊料表面張力，提高焊接性能.助焊劑性能的優(yōu)劣，直接影響到電子產(chǎn)品的質(zhì)量。買助焊劑認準(zhǔn)正盟牌。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波助焊劑危害,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！咳绾芜x擇助焊劑對于使用廠商來說，因為助焊劑的成份是沒有辦法做出測試的.如果要想了解助焊劑溶劑是否揮發(fā)，可以簡單的從比重上測量,如果比重增大很多，就可以斷定溶劑有所揮發(fā). 選擇助焊劑時，有以下幾點建議給使用廠商：一、聞氣味初步斷定是用何種溶劑如甲醇味道比較小但很嗆，異丙醇味道比較重一些，乙醇就有醇香味，雖然說供應(yīng)商也可能用混合溶劑，但要求供應(yīng)商提供成份報告，一般他們還是會提供的；但是，異丙醇的價格大概是甲醇的3-4倍，如果和供應(yīng)商壓價的厲害，可能這里面的東西就不好說了二、確定樣品這也是很多廠商選擇助焊劑的根本的方法，在確認樣品時，應(yīng)要求供應(yīng)商提供相關(guān)參數(shù)報告，并與樣品對照，如樣品確認OK，后續(xù)交貨時應(yīng)按原有參數(shù)對照，出現(xiàn)異常時應(yīng)檢查比重，酸度值等,助焊劑的發(fā)煙量也是很重要的一個指標(biāo)。三、看資質(zhì) 助焊劑市場是良莠不齊，選擇時對供應(yīng)商的資質(zhì)應(yīng)該進行確切了解，如有必要可以去廠商去看廠，如果是不正規(guī)的焊劑廠商，是很怕這一套的。廠家供應(yīng)環(huán)保型助焊劑水基環(huán)保免清洗焊劑現(xiàn)貨供應(yīng)。浙江錫線助焊劑</p><p style="text-indent:25px">環(huán)保級助焊劑現(xiàn)貨供應(yīng)廠家直銷。寧波助焊劑危害</p><p style="text-indent:25px">【正盟環(huán)?！侩娮庸I(yè)助焊劑之如何從技術(shù)性能指標(biāo)的角度選擇助焊劑？(二) 鹵素含量：鹵素具有較強的奪取電子能力，微量的鹵素存在會使得助焊劑的可焊性大幅提升，但鹵素的存在不僅有環(huán)保壓力也會給產(chǎn)品的可靠性造成一定影響。故助焊劑鹵素含量因應(yīng)用場景而定。比重：助焊劑中溶劑載體與其他組分的密度相差較大，助焊劑在儲存和使用過程中因為揮發(fā)作用而損失掉，造成比重的變化，故比重一定程度上可以反映助焊劑濃度的變化，故比重應(yīng)用于生產(chǎn)中的管控指標(biāo)。固含量：固含量與焊后殘留量（即干凈度）有直接關(guān)系，但非對應(yīng)關(guān)系，主要是因為測試溫度和實際使用溫度上存在差異。所以固含量的是在可焊性和焊后干凈度之間做權(quán)衡。寧波助焊劑危害</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司位于順風(fēng)路528號2號樓南樓東向3層。公司業(yè)務(wù)分為助焊劑，錫絲，錫條，錫膏等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造環(huán)保良好品牌。正盟環(huán)保憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1244062.html</p></div></div></div></div></div><div id="8bxjawn" class="page-right twoColRt"><div id="223379p" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8uvm7jk" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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