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href="http://www.cdcfah.com/zh/"><span>展會(huì)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="epa8qkg" class="twoCol"><div id="3qmkv2z" 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>?溫州求購(gòu)助焊劑真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)</p><div id="o27yu8t" class="leftbox clearfix"><h1>溫州求購(gòu)助焊劑真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)</h1><div id="8awye83" class="proBig"><div id="vbhypi8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="eg8qhy7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qxjfmnu" 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>溫州求購(gòu)助焊劑,助焊劑</p><p><span>***更新：</span>2020-09-09 15:09:07</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="ruvwsyk" 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="trxi8hy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="iqhtpqh" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！砍Ｓ玫暮噶?錫（Sn），溫州求購(gòu)助焊劑，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，溫州求購(gòu)助焊劑，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’，溫州求購(gòu)助焊劑。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。杭州正盟環(huán)保，水基環(huán)保助焊劑，環(huán)保級(jí)廠家直銷。溫州求購(gòu)助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="溫州求購(gòu)助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！棵馇逑粗竸?要使焊接后的PCB板面不用清洗就能達(dá)到規(guī)定的質(zhì)量水平，助焊劑的選擇是一個(gè)關(guān)鍵，通常對(duì)免清洗助焊劑有下列要求： ①低固態(tài)含量：2%以下傳統(tǒng)的助焊劑有較高的固態(tài)含量（20～40%）、中等的固態(tài)含量（10～15%）和較低的固態(tài)含量（5～10%），用這些助焊劑焊接后的PCB板面留有或多或少的殘留物，而免清洗助焊劑的固態(tài)含量要求低于2%，而且不能含有松香，因此焊后板面基本無殘留物。 ②無腐蝕性：不含鹵素、表面絕緣電阻>1.0×1011Ω 傳統(tǒng)的助焊劑因?yàn)橛休^高的固態(tài)含量，焊接后可將部分有害物質(zhì)“包裹起來”，隔絕與空氣的接觸，形成絕緣保護(hù)層。而免清洗助焊劑，由于極低的固態(tài)含量不能形成絕緣保護(hù)層，若有少量的有害成分殘留在板面上，就會(huì)導(dǎo)致腐蝕和漏電等嚴(yán)重不良后果。因此，免清洗助焊劑中不允許含有鹵素成分。天津助焊劑銷售環(huán)保級(jí)助焊劑現(xiàn)貨供應(yīng)廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="溫州求購(gòu)助焊劑,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╢lux）：在焊接工藝中能幫助和促進(jìn)焊接過程，同時(shí)具有保護(hù)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(gè)方面，在這幾個(gè)方面中比較關(guān)鍵的作用有兩個(gè)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(jìn)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(shí)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(dá)到必要的清潔度.它防止焊接時(shí)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。</p><p style="text-indent:25px">【正盟環(huán)?！康退上阈兔馇逑粗竸┦且环N專為用于機(jī)器焊接高級(jí)多層電路板的助焊劑。此類助焊劑助焊能力強(qiáng)，發(fā)泡性能好，不含鹵素，在焊接時(shí)產(chǎn)生的煙霧和其殘余物對(duì)焊料和裸銅無腐蝕性，在較高的預(yù)熱溫度100℃～130℃時(shí)得到狀態(tài)。因此，它是一種較理想的免清洗助焊劑，在板子上具有極高的表面絕緣阻抗以及快干的效果，板子的粘膩感亦可以減少到低的程度，能夠輕易地通過測(cè)試程序，適用于任何**線路板波峰焊、噴焊及手工焊。該助焊劑中溶劑既要對(duì)焊接表面具有良好的保護(hù)作用，又要有適當(dāng)?shù)酿ざ?。高沸點(diǎn)的醇保護(hù)效果較好，但黏度大、使用不便；低沸點(diǎn)的醇黏度低，但保護(hù)性差，因而可以考慮選擇混合醇的方法。有資料表明，乙醇、乙二醇、丙三醇和乙二醇丁醚的配比(質(zhì)量比)為2:8:8:1的混合溶劑效果上佳。買助焊劑，找杭州正盟環(huán)保工程有限公司！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="溫州求購(gòu)助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637336031689003906/1471739.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！侩娎予F焊接過程中，如何選擇助焊劑？焊錫材料是電子行業(yè)的生產(chǎn)與維修工作中必不可少的，在電烙鐵的使用過程中，我們經(jīng)常會(huì)用到。焊錫膏---膏狀粘稠體，主要成分金屬粉末、松香、有機(jī)酸、觸變劑、活性劑。用于SMT自動(dòng)貼裝工藝的焊接。助焊劑是統(tǒng)稱，松香、焊錫膏都屬于助焊劑，關(guān)鍵的用途是增加焊接時(shí)焊料與被焊物體的浸潤(rùn)效果(浸潤(rùn)不佳的話,焊錫不能很好的附著在被焊物體上，出現(xiàn)圓圓的球狀,很容易虛焊)。其他還有比如去除氧化、輔助熱傳導(dǎo)、降低金屬表面張力、使焊點(diǎn)美觀等等。助焊劑分成三大類：一是無機(jī)助焊劑，二是有機(jī)助焊劑，三是松香。正盟生產(chǎn)質(zhì)量助焊劑。金華助焊劑品牌</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。溫州求購(gòu)助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！恐竸└鞒煞值淖饔弥罨瘎┑淖饔脵C(jī)理活化劑主要作用是在焊接溫度下去除焊盤和焊料表面的氧化物，并形成保護(hù)層，防止基體的再次氧化，從而提高焊料和焊盤之間的潤(rùn)濕性。助焊劑活化劑的成分一般為氫氣、無機(jī)鹽、酸類和胺類，以及它們的復(fù)配組合物。【正盟環(huán)?！恐竸└鞒煞值淖饔弥畾錃狻o機(jī)鹽氫氣和無機(jī)鹽如氯化亞錫、氯化鋅、氯化銨等是利用其還原性與氧化物反應(yīng)，如：氣體助焊劑中的氫氣，在焊接之后水是其獨(dú)有的殘留物；而且氫的還原作用能有效地去除金屬表面的氧化物，把氧化物轉(zhuǎn)化為水。 MxOy＋yH 2 ＝xM＋yH 2 O 同時(shí)，氫還為金屬表面提供保護(hù)氣體，防止金屬表面在焊接完成之前再氧化。溫州求購(gòu)助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司主要經(jīng)營(yíng)范圍是環(huán)保，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。正盟環(huán)保致力于為客戶提供良好的助焊劑，錫絲，錫條，錫膏，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于環(huán)保行業(yè)的發(fā)展。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(yù)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/1219490.html</p></div></div></div></div></div><div id="uctkghy" class="page-right twoColRt"><div id="zsepq3d" class="box01 margin10 clearfix"><h3><a 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