北京焊錫助焊劑正盟環(huán)保杭州正盟環(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)保】助焊劑具備性能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10"><meta name="keywords" content="北京焊錫助焊劑,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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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>?北京焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</p><div id="dxzbyfh" class="leftbox clearfix"><h1>北京焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</h1><div id="fevnfmo" class="proBig"><div id="a7i3na7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274804687/3589720.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vewt7pm" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274804687/3589720.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3dnkrtl" 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>北京焊錫助焊劑,助焊劑</p><p><span>***更新：</span>2020-09-06 01:12:01</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="x8f2lyq" 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="22wtgia" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7fwi3j3" class="box"><p><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，北京焊錫助焊劑、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，北京焊錫助焊劑，北京焊錫助焊劑，易于貯藏水基環(huán)保免清洗焊劑，**于銅基材的熱浸鍍錫，廠家直銷。北京焊錫助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274804687/3589720.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(wú)殘留物。 ②無(wú)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(lái)”，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。溫州清洗助焊劑助焊劑廠家直供，一手貨源！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274609375/2746468.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑各成分的作用之緩蝕劑緩蝕劑一般為吡咯類，例如苯并三氮唑（BTA），它是銅的高效緩蝕劑，其加入可以抑制助焊劑中的活性劑對(duì)銅板產(chǎn)生的腐蝕。一般認(rèn)為苯并三氮唑與銅反應(yīng)生成不溶性聚合物的沉淀膜。王偉科根據(jù)化學(xué)分析和X射線分析，認(rèn)為膜的經(jīng)驗(yàn)式是BTA 4 Cu3Cl2? H2O和（BTA2Cu）2CuCl2?H2O，且聚合物和金屬銅的表面平行，非常穩(wěn)定。BTA在Cu 2 O層上成膜比在 CuO層上成膜更容易，而且膜的厚度厚了近一倍。 BTA的濃度大于l0-3 mol／L時(shí)，就可以很好地抑制銅的腐蝕。</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？(三) 銅鏡腐蝕性：助焊劑的腐蝕性大小是對(duì)酸性強(qiáng)弱對(duì)基材影響的進(jìn)一步驗(yàn)證，衡量腐蝕性大小一般是在使用相當(dāng)普遍的基材銅上做銅鏡腐蝕試驗(yàn)。這項(xiàng)指標(biāo)也是需要在腐蝕性和可焊性之間做權(quán)衡。表面絕緣電阻：表面絕緣電阻的反應(yīng)的是助焊劑焊后產(chǎn)品可靠性，按照不同的測(cè)試標(biāo)準(zhǔn)對(duì)表面絕緣電阻值的要求也不一樣，按照GBT9491-2002標(biāo)準(zhǔn)SIR大于1011Ω，而按照IPC J-STD-004標(biāo)準(zhǔn)，SIR大于108Ω，因測(cè)試方法不同，兩者的對(duì)比并無(wú)意義。但可以確定的是SIR值是越大對(duì)焊后產(chǎn)品越有利。電化學(xué)遷移：電化學(xué)遷移也是對(duì)表面絕緣電阻值的進(jìn)一步要求，在更極端的環(huán)境下考察助焊劑的表面絕緣電阻。當(dāng)然該項(xiàng)指標(biāo)亦越大對(duì)焊后產(chǎn)品越有利。除上述詳細(xì)的技術(shù)參數(shù)的考慮，其次還需結(jié)合所需要裝配的電子產(chǎn)品的類別或技術(shù)要求，選擇合適的助焊劑產(chǎn)品；需要對(duì)所選助焊劑，進(jìn)行試驗(yàn)驗(yàn)證和有效評(píng)估。杭州正盟環(huán)保工程有限公司有好的產(chǎn)品和專業(yè)的銷售和技術(shù)團(tuán)隊(duì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！砍Ｓ玫闹竸?助焊劑，也有人稱為：”焊劑、焊藥“。經(jīng)過清潔處理的焊件表面，在加熱焊接時(shí)，總是很快又被氧化，形成阻焊層，所以必須使用助焊劑，清理氧化物的同時(shí)，隔絕氧氣阻止再次氧化，還能降低液態(tài)焊料的表面張力，增加它的流動(dòng)性，讓焊點(diǎn)表面光潔美觀，焊點(diǎn)內(nèi)部密實(shí)。【正盟環(huán)?！砍Ｒ姷闹竸┯猛竞托阅?助焊劑，在溫度升高時(shí)，能流淌到焊接表面散開，在去除焊件表面的氧化物的同時(shí)，隔絕了與氧氣的接觸，保持焊件表面‘干凈’，還能讓焊料的流淌性變好，利于焊料流淌到焊接的縫隙中。需要注意的是，氯化鋅和稀鹽酸，雖然有很好的去污能力，使用很方便，但是腐蝕能力也很強(qiáng)，盡量避免在電路板焊接中使用。同樣的，焊錫膏，也是使用方便的助焊劑，但是會(huì)有很多殘留物，焊接時(shí)飛濺的物質(zhì)中有很多酸性物質(zhì)，同樣也會(huì)對(duì)電路板的其他部分造成腐蝕。如果要使用氯化鋅和稀鹽酸或者焊錫膏，來(lái)焊接電路板，焊接完畢后，必須徹底清洗，以免因?yàn)楦g造成電路板出現(xiàn)，無(wú)法預(yù)期的故障。業(yè)余條件，和不洗板的情況下，焊接電路板，相當(dāng)常用，適合助焊劑是‘松香’，它的優(yōu)點(diǎn)是，無(wú)腐蝕性，不會(huì)沾染灰塵。浙江廠家直銷助焊劑，質(zhì)量環(huán)保助焊劑。江蘇助焊劑生產(chǎn)</p><p style="text-indent:25px">正盟環(huán)保助焊劑，您值得擁有！北京焊錫助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！克h(huán)保免清洗焊劑是針對(duì)太陽(yáng)能光伏行業(yè)開發(fā)的一款環(huán)保型免清洗助焊劑，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。 A：**于銅基材的熱浸鍍錫 B：添加了高沸點(diǎn)溶劑，使其在高溫下亦能保持優(yōu)異活性，因而獲得優(yōu)異的焊接效果; C：添加多款進(jìn)口高效活性劑以保證焊接穿透性能上佳; D：低固態(tài)含量，焊后銅皮板面干凈，無(wú)腐蝕性殘留物，銅皮焊錫線條光亮飽滿，絕緣阻抗極高; E：銅基材熱浸鍍錫助焊劑達(dá)到以下國(guó)際標(biāo)準(zhǔn)：歐盟 RoHS 標(biāo)準(zhǔn);是涂錫銅帶**新型環(huán)保免清洗助焊劑北京焊錫助焊劑</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，是一家生產(chǎn)型的公司。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。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在環(huán)保深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，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(lái)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(lái)源地址: http://www.cdcfah.com/cp/1172167.html</p></div></div></div></div></div><div id="3uwd77d" class="page-right twoColRt"><div id="shz3acz" class="box01 margin10 clearfix"><h3><a 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