舟山助焊劑國(guó)標(biāo) 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)?！俊局竸┬≈R(shí)】助焊劑在PCB行業(yè)中應(yīng)用極廣，其品質(zhì)直接影響電子工業(yè)的整個(gè)生產(chǎn)過程和產(chǎn)品質(zhì)量。隨著RoHS和WEEE指令的實(shí)行，無(wú)鉛化對(duì)助焊劑的性能提出了更高的要求，助焊劑已由傳統(tǒng)的松香型向無(wú)鹵、無(wú)松香、免清洗、低固含量方向發(fā)展"><meta name="keywords" content="舟山助焊劑國(guó)標(biāo),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" 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正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</h1><div id="ecegnkw" class="proBig"><div id="ha2mjgt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="23suwi3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="79pwdk3" 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>舟山助焊劑國(guó)標(biāo),助焊劑</p><p><span>***更新：</span>2020-09-03 16:15:27</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="348fwov" 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="aoli8ta" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rlif43f" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】【助焊劑小知識(shí)】助焊劑在PCB行業(yè)中應(yīng)用極廣，其品質(zhì)直接影響電子工業(yè)的整個(gè)生產(chǎn)過程和產(chǎn)品質(zhì)量。隨著RoHS 和WEEE指令的實(shí)行，無(wú)鉛化對(duì)助焊劑的性能提出了更高的要求，助焊劑已由傳統(tǒng)的松香型向無(wú)鹵、無(wú)松香、免清洗、低固含量方向發(fā)展，其組成也隨之發(fā)生了相應(yīng)的變化，各組分的相互作用，舟山助焊劑國(guó)標(biāo)，使助焊劑的性能更加優(yōu)良。 1，舟山助焊劑國(guó)標(biāo)、助焊劑的基本組成國(guó)內(nèi)外助焊劑一般由活化劑、溶劑、表面活性劑和特殊成分組成。特殊成分包括緩蝕劑、防氧化劑，舟山助焊劑國(guó)標(biāo)、成膜劑等。熱誠(chéng)歡迎各界朋友前來(lái)參觀、考察、治談業(yè)務(wù)。舟山助焊劑國(guó)標(biāo)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山助焊劑國(guó)標(biāo),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.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。南京助焊劑膏廠家供應(yīng)國(guó)標(biāo)助焊劑***安全焊接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山助焊劑國(guó)標(biāo),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637336031689003906/1471739.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？(二) 鹵素含量：鹵素具有較強(qiáng)的奪取電子能力，微量的鹵素存在會(huì)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(huì)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(chǎng)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(chǔ)存和使用過程中因?yàn)閾]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(duì)應(yīng)關(guān)系，主要是因?yàn)闇y(cè)試溫度和實(shí)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。</p><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。廠家供應(yīng)環(huán)保級(jí)助焊劑，***，助您安全焊接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山助焊劑國(guó)標(biāo),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！渴裁词敲馇逑粗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，并不是“免清洗”。浙江廠家直銷助焊劑，質(zhì)量環(huán)保助焊劑。南京助焊劑膏</p><p style="text-indent:25px">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)。舟山助焊劑國(guó)標(biāo)</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。舟山助焊劑國(guó)標(biāo)</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司是一家杭州正盟環(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，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。正盟環(huán)保作為杭州正盟環(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。的企業(yè)之一，為客戶提供良好的助焊劑，錫絲，錫條，錫膏。正盟環(huán)保始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。正盟環(huán)保始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使正盟環(huán)保在行業(yè)的從容而自信。</p></p><br 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