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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="3sro2cz" class="twoCol"><div id="4lskcjf" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?天津環(huán)保助焊劑真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)</p><div id="jczwypw" class="leftbox clearfix"><h1>天津環(huán)保助焊劑真誠(chéng)推薦杭州正盟環(huán)保工程供應(yīng)</h1><div id="gt3ncp7" class="proBig"><div id="92numov" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mku33e2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qjqszbi" 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>天津環(huán)保助焊劑,助焊劑</p><p><span>***更新：</span>2020-09-06 07:16:22</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="kdfmtac" 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="sbt8ufs" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="r2j2vbd" 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(lái)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，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(guò)酸性反應(yīng)，酸性越強(qiáng)PH值越低，天津環(huán)保助焊劑，助焊劑的去氧化能力則越強(qiáng)，但同時(shí)帶來(lái)的過(guò)反應(yīng)的問(wèn)題而把金屬基材腐蝕，天津環(huán)保助焊劑，天津環(huán)保助焊劑。故助焊劑酸性的大小應(yīng)與金屬材料敏感性相匹配，精密焊接不宜選擇酸性太強(qiáng)的助焊劑，或者焊后需要進(jìn)行清洗。助焊劑哪家好，杭州正盟環(huán)保工程有限公司。天津環(huán)保助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津環(huán)保助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑中還包含許多其它有用成分。溶劑主要作用是溶解焊劑中的所含成分，作為各成分的載體，使之成為均勻的粘稠液體。一般為醇類、酯類、醇醚類、烴類、酮類等。高沸點(diǎn)的醇保護(hù)效果較好，但粘度大、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。一般為高沸點(diǎn)和低沸點(diǎn)醇的混合物，有的使用水溶性的醇和不溶于水的醚作溶劑。李偉浩以超支化結(jié)構(gòu)和平均分子量為2000的水溶性聚合物作為助焊劑載體，超支化的分子構(gòu)型不僅能提高聚合物的熱分解溫度，同時(shí)可以降低聚合物的粘度，增強(qiáng)聚合物的滲透和潤(rùn)濕性能。表面活性劑主要作用是降低焊劑的表面張力，增加焊劑對(duì)焊粉和焊盤的親潤(rùn)性。深圳助焊劑原理環(huán)保助焊劑，用于太陽(yáng)能光伏組件行業(yè)。杭州正盟環(huán)保生產(chǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津環(huán)保助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637336031689003906/1471739.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！渴裁词敲馇逑矗裁词敲馇逑粗竸?免清洗是指在電子裝聯(lián)生產(chǎn)中采用低固態(tài)含量、無(wú)腐蝕性的助焊劑，在惰性氣體環(huán)境下焊接，焊后電路板上的殘留物極微、無(wú)腐蝕，且具有極高的表面絕緣電阻（SIR），一般情況下不需要清洗既能達(dá)到離子潔凈度的標(biāo)準(zhǔn)（美軍標(biāo)MIL-P-228809離子污染等級(jí)劃分為：一級(jí)≤1.5ugNaCl/cm2無(wú)污染；二級(jí)≤1.5～5.0ugNACl/cm2質(zhì)量高；三級(jí)≤5.0～10.0ugNaCl/cm2符合要求；四級(jí)>10.0ugNaCl/cm2不干凈），可直接進(jìn)入下道工序的工藝技術(shù)。必須指出的是“免清洗”與“不清洗”是相對(duì)不同的2個(gè)概念，所謂“不清洗”是指在電子裝聯(lián)生產(chǎn)中采用傳統(tǒng)的松香助焊劑（RMA）或有機(jī)酸助焊劑，焊接后雖然板面留有一定的殘留物，但不用清洗也能滿足某些產(chǎn)品的質(zhì)量要求，如家用電子產(chǎn)品、專業(yè)聲視設(shè)備、低成本辦公設(shè)備等產(chǎn)品，它們生產(chǎn)時(shí)通常是“不清洗”的，但相對(duì)不是“免清洗”。</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(jìn)焊接過(guò)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(guò)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(guò)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。杭州正盟環(huán)保，現(xiàn)貨供應(yīng)環(huán)保級(jí)助焊劑，洗焊劑，環(huán)保錫絲。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津環(huán)保助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg"></div><p style="text-indent:25px">【正盟環(huán)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？(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。助焊劑保證焊接過(guò)程順利進(jìn)行，廠價(jià)直銷。深圳清洗助焊劑</p><p style="text-indent:25px">買助焊劑，找杭州正盟環(huán)保工程有限公司！天津環(huán)保助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?在實(shí)際使用中發(fā)現(xiàn)，松香為單體時(shí)，化學(xué)活性較弱，對(duì)促進(jìn)焊料的潤(rùn)濕往往不夠充分，因此需要添加少量的活性劑，用以提高它的活性。松香系列焊劑根據(jù)有無(wú)添加活性劑和化學(xué)活性的強(qiáng)弱，被分為非活性化松香、弱活性化松香、活性化松香和超活性化松香4種，美國(guó)MIL標(biāo)準(zhǔn)中分別稱為R、RMA、RA、RSA，而日本JIS標(biāo)準(zhǔn)則根據(jù)助焊劑的含氯量劃分為AA（0.1wt%以下）、A（0.1～0.5wt%）、B（0.5～1.0wt%）3種等級(jí)。杭州正盟環(huán)保工程有限公司成立于1992年，坐落于杭州錢江經(jīng)濟(jì)開發(fā)區(qū)。多年公司秉承“誠(chéng)信、創(chuàng)新、品質(zhì)、分享”的企業(yè)理念，依托區(qū)位、研發(fā)、生產(chǎn)、營(yíng)銷等相對(duì)優(yōu)勢(shì)，致力于“產(chǎn)、學(xué)、研”相結(jié)合和科研成果的轉(zhuǎn)化，先后與同濟(jì)大學(xué)環(huán)境科學(xué)與工程學(xué)院、原化工部成都研究所等學(xué)術(shù)機(jī)構(gòu)建立技術(shù)合作關(guān)系，在電子化學(xué)、環(huán)境功能材料等領(lǐng)域成績(jī)斐然。天津環(huán)保助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司總部位于順風(fēng)路528號(hào)2號(hào)樓南樓東向3層，是一家杭州正盟環(huán)保工程有限公司成立于1992年，坐落于杭州錢江經(jīng)濟(jì)開發(fā)區(qū)。多年公司秉承“誠(chéng)信、創(chuàng)新、品質(zhì)、分享”的企業(yè)理念，依托區(qū)位、研發(fā)、生產(chǎn)、營(yíng)銷等相對(duì)優(yōu)勢(shì)，致力于“產(chǎn)、學(xué)、研”相結(jié)合和科研成果的轉(zhuǎn)化，先后與同濟(jì)大學(xué)環(huán)境科學(xué)與工程學(xué)院、原化工部成都研究所等學(xué)術(shù)機(jī)構(gòu)建立技術(shù)合作關(guān)系，在電子化學(xué)、環(huán)境功能材料等領(lǐng)域成績(jī)斐然。公司有同濟(jì)大學(xué)聯(lián)合實(shí)驗(yàn)室、科研成果孵化基地。成產(chǎn)基地、工程中心和銷售中心組成，擁有多項(xiàng)自主知識(shí)產(chǎn)權(quán)和新型實(shí)用技術(shù)，多臺(tái)套先進(jìn)生產(chǎn)、分析、檢測(cè)、計(jì)量設(shè)備，嚴(yán)格依照ISO090001:2000質(zhì)量保證體系運(yùn)行。正盟公司以先進(jìn)實(shí)用技術(shù)、質(zhì)量穩(wěn)定的產(chǎn)品和及時(shí)質(zhì)量的服務(wù)在業(yè)界廣受贊譽(yù)，產(chǎn)品廣泛應(yīng)用于電子、通訊、信息、航空航天、醫(yī)藥、石化等領(lǐng)域，取得良好市場(chǎng)反響和經(jīng)驗(yàn)業(yè)績(jī)。今后將繼續(xù)堅(jiān)持技術(shù)創(chuàng)新、品質(zhì)提升和優(yōu)化市場(chǎng)響應(yīng)，竭力為客戶帶來(lái)嶄新體驗(yàn)，不斷為客戶提供質(zhì)量產(chǎn)品。竭誠(chéng)歡迎新老客戶和社會(huì)各界朋友蒞臨我司參觀考察，指導(dǎo)交流，期待與您攜手、共創(chuàng)輝煌明天。的公司。正盟環(huán)保擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供助焊劑，錫絲，錫條，錫膏。正盟環(huán)保繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。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 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