南京助焊劑種類真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="【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？(一)助焊劑是電子工業(yè)中相當(dāng)重要的輔助材料之一，它在電子裝配工藝中影響電子產(chǎn)品質(zhì)量與可靠性。隨著現(xiàn)代信息電子工業(yè)的迅猛發(fā)展，助焊劑的使用量大要求越來越高。如何能在眾多的助焊劑中"><meta name="keywords" content="南京助焊劑種類,助焊劑"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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clearfix"><h1>南京助焊劑種類真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)</h1><div id="q299dkw" class="proBig"><div id="8nz8rw8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jceykrc" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rgizq2i" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>南京助焊劑種類,助焊劑</p><p><span>***更新：</span>2020-09-10 07:03:59</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="dnuwdpb" 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(jī): </span>0571-88117763</p><p><span>地址: </span>順風(fēng)路528號(hào)2號(hào)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="ertfgmt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wv88ta7" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】電子工業(yè)助焊劑之如何從技術(shù)性能指標(biāo)的角度選擇助焊劑？(一) 助焊劑是電子工業(yè)中相當(dāng)重要的輔助材料之一，它在電子裝配工藝中影響電子產(chǎn)品質(zhì)量與可靠性。隨著現(xiàn)代信息電子工業(yè)的迅猛發(fā)展，助焊劑的使用量大要求越來越高。如何能在眾多的助焊劑中挑選一款適合自己所需要的產(chǎn)品，南京助焊劑種類，滿足波峰焊工藝使用，從技術(shù)性能指標(biāo)的角度可供初步參考篩選?到適合的產(chǎn)品，首先需要正確理解其各項(xiàng)技術(shù)性能指標(biāo)： PH值：助焊劑去除焊接金屬表面的金屬氧化物通過酸性反應(yīng)，酸性越強(qiáng)PH值越低，助焊劑的去氧化能力則越強(qiáng)，但同時(shí)帶來的過反應(yīng)的問題而把金屬基材腐蝕。故助焊劑酸性的大小應(yīng)與金屬材料敏感性相匹配，南京助焊劑種類，精密焊接不宜選擇酸性太強(qiáng)的助焊劑，南京助焊劑種類，或者焊后需要進(jìn)行清洗。杭州正盟環(huán)保工程有限公司專業(yè)生產(chǎn)水基環(huán)保免清洗焊劑。南京助焊劑種類</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京助焊劑種類,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸└鞒煞值淖饔弥袡C(jī)酸酸類活性劑（如鹵酸、羧酸、磺酸）主要是因?yàn)镠+和氧化物反應(yīng)，例如[3]：有機(jī)酸的羧基和金屬離子以金屬皂的形式除去焊盤和焊料的氧化膜： CuO＋2RCOOH→Cu(RCOO)2 ＋H 2 O 隨后有機(jī)酸銅發(fā)生分解，吸收氫氣，并生成有機(jī)酸與金屬銅： Cu(RCOO)2＋H2＋M→2RCOOH＋M－Cu 松香（Colophony）用分子式表示為C 19 H29COOH，由于它含有羧基，使得它在一定的溫度下，有一定的助焊作用；同時(shí)松香是一種大分子多環(huán)化合物，因此它具有一定的成膜性，在焊接過程中傳遞熱量和起覆蓋作用，能保護(hù)去除氧化膜后的金屬不再重新被氧化。現(xiàn)在有單一有機(jī)酸作活化劑，也有混酸用作活化劑。這些酸的沸點(diǎn)和分解溫度有一定的差異，這樣組合，可以使助焊劑的沸點(diǎn)和活化劑分解溫度呈一個(gè)較大的區(qū)間分布。南京助焊劑種類***環(huán)保級(jí)助焊劑生產(chǎn)加工，現(xiàn)貨批發(fā)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京助焊劑種類,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸┚邆湫阅?⑴助焊劑應(yīng)有適當(dāng)?shù)幕钚詼囟确秶?。在焊料熔化前開始起作用，在施焊過程中較好地發(fā)揮去除氧化膜、降低液態(tài)焊料表面張力的作用。焊劑的熔點(diǎn)應(yīng)低于焊料的熔點(diǎn)，但不易相差過大。 ⑵助焊劑應(yīng)有良好的熱穩(wěn)定性，一般熱穩(wěn)定溫度不小于100℃。 ⑶助焊劑的密度應(yīng)小于液態(tài)焊料的密度，這樣助焊劑才能均勻地在被焊金屬表面鋪展，呈薄膜狀覆蓋在焊料和被焊金屬表面，有效地隔絕空氣，促進(jìn)焊料對(duì)母材的潤(rùn)濕。 ⑷助焊劑的殘留物不應(yīng)有腐蝕性且容易清洗；不應(yīng)析出有毒、有害氣體；要有符合電子工業(yè)規(guī)定的水溶性電阻和絕緣電阻；不吸潮，不產(chǎn)生霉菌；化學(xué)性能穩(wěn)定，易于貯藏</p><p style="text-indent:25px">【正盟環(huán)?！俊局竸抗夥M件助焊劑是專為太陽能自動(dòng)串焊機(jī)設(shè)計(jì)的一款極低固含量的高可靠焊接性能的環(huán)保助焊劑。本型號(hào)產(chǎn)品以混合醇和醇醚類作為增溶劑【正盟環(huán)保】【助焊劑】NCF-1087A助焊劑是針對(duì)電子行業(yè)開發(fā)的一款環(huán)保型免清洗助焊劑。助焊劑體系的活性經(jīng)過特別設(shè)計(jì)，合適的固體含量及其內(nèi)部活性機(jī)理保證了良好的焊接效果，無殘?jiān)绊戨娦阅埽负髿埩粑飿O少，在無特殊需求條件下，可免除清洗工序，進(jìn)而節(jié)約制造商的生產(chǎn)費(fèi)用和工作時(shí)間。水基環(huán)保免清洗焊劑，**于銅基材的熱浸鍍錫，廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京助焊劑種類,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑成分免洗助焊劑主要原料為有機(jī)溶劑，松香樹脂及其衍生物、合成樹脂表面活性劑、有機(jī)酸活化劑、防腐蝕劑，助溶劑、成膜劑.簡(jiǎn)單地說是各種固體成分溶解在各種液體中形成均勻透明的混合溶液，其中各種成分所占比例各不相同，所起作用不同有機(jī)溶劑：酮類、醇類、酯類中的一種或幾種混合物，常用的有乙醇、丙醇、丁醇;**、甲苯異丁基甲酮;醋酸乙酯,醋酸丁酯等.作為液體成分，其主要作用是溶解助焊劑中的固體成分，使之形成均勻的溶液，便于待焊元件均勻涂布適量的助焊劑成分，同時(shí)它還可以清洗輕的臟物和金屬表面的油污.環(huán)保助焊劑，用于太陽能光伏組件行業(yè)。杭州正盟環(huán)保生產(chǎn)。金華高溫助焊劑</p><p style="text-indent:25px">廠家供應(yīng)環(huán)保級(jí)助焊劑，***，助您安全焊接。南京助焊劑種類</p><p style="text-indent:25px">【正盟環(huán)?！砍Ｓ玫暮噶?錫（Sn），是銀白色、有光澤、有延展性、呈脆性、在空氣中不易氧化的金屬，熔點(diǎn)為232℃。由于純錫，呈脆性，并且能與大多數(shù)金屬熔融形成合金，因此為了讓以錫為主的焊料具有韌性，同時(shí)降低熔點(diǎn)，必須與另外一種金屬熔融，以改善錫焊料的焊接性能。鉛（Pb），是青灰色、質(zhì)軟、密度大、有延展性、有毒性、在空氣中易氧化的金屬，熔點(diǎn)為327℃。但是鉛，是一種不錯(cuò)的錫焊料添加料，當(dāng)與錫按比例熔融混合后，就得到常用的‘含鉛焊錫料’。這種‘含鉛錫焊料’，熔點(diǎn)變低，利于低溫焊接，能容易與大多數(shù)金屬結(jié)合（即：容易上焊料），并且價(jià)格低、導(dǎo)電性好、焊點(diǎn)可靠。南京助焊劑種類</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司致力于環(huán)保，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。正盟環(huán)保深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的助焊劑，錫絲，錫條，錫膏。正盟環(huán)保致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。正盟環(huán)保始終關(guān)注環(huán)保行業(yè)。滿足市場(chǎng)需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1225933.html</p></div></div></div></div></div><div id="bklc8pq" class="page-right twoColRt"><div id="ve2lrso" class="box01 margin10 clearfix"><h3><a 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