珠海助焊劑參數(shù) 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】常用的焊料錫（Sn），是銀白色、有光澤、有延展性，珠海助焊劑參數(shù)、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"><meta name="keywords" content="珠海助焊劑參數(shù),助焊劑"><link rel="canonical" href="http://m.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 http-equiv="Cache-Control" 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正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</h1><div id="8zg3ekh" class="proBig"><div id="177wdkm" 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="cb7s78x" 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="5ypwtvc" 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>珠海助焊劑參數(shù),助焊劑</p><p><span>***更新：</span>2020-09-04 13:13:23</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="xhb8if7" 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="lk2q9lk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="blaho33" class="box"><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，珠海助焊劑參數(shù)、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，珠海助焊劑參數(shù)、在空氣中易氧化的金屬，熔點(diǎn)為327℃。但是鉛，珠海助焊劑參數(shù)，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。水基環(huán)保免清洗焊劑，**于銅基材的熱浸鍍錫，廠家直銷。珠海助焊劑參數(shù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海助焊劑參數(shù),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸┑姆N類很多，大體上可分為有機(jī)、無機(jī)和樹脂三大系列。 2、有機(jī)：有機(jī)系列助焊劑的助焊作用介于無機(jī)系列助焊劑和樹脂系列助焊劑之間，它也屬于酸性、水溶性焊劑。含有有機(jī)酸的水溶性焊劑以乳酸、檸檬酸為基礎(chǔ)，由于它的焊接殘留物可以在被焊物上保留一段時(shí)間而無嚴(yán)重腐蝕。所以，可以用在電子設(shè)備的裝聯(lián)中，但是通常不用在SMT的焊膏中，因?yàn)樗鼪]有松香焊劑的粘稠性。 3、樹脂：在電子產(chǎn)品的焊接中使用比例較大的是樹脂型助焊劑。由于它只能溶解于有機(jī)溶劑，故又稱為有機(jī)溶劑助焊劑，其主要成分是松香。松香助焊劑有液態(tài)、糊狀和固態(tài)三種形態(tài)，固態(tài)的助焊劑適用于烙鐵焊，液態(tài)和糊狀的助焊劑分別適用于波峰焊。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，所以需要添加少量的活性劑，以便提高它的活性。杭州錫助焊劑助焊劑，杭州正盟環(huán)保生產(chǎn)國(guó)標(biāo)環(huán)保助焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海助焊劑參數(shù),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑各成分的作用之有機(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。</p><p style="text-indent:25px">【正盟環(huán)?！磕壳皣?guó)內(nèi)常用的可靠性評(píng)價(jià)試驗(yàn)主要為：表面絕緣阻抗測(cè)試，其次銅鏡腐蝕測(cè)試、離子濃度測(cè)試、軟釬焊性試驗(yàn)等。表面絕緣阻抗測(cè)試試驗(yàn)時(shí)用規(guī)定的材質(zhì)的梳型電極或環(huán)型電極，均勻地涂覆定量的焊劑，在約85℃的溫度下干燥30 min作為試片。先在常態(tài)下測(cè)定上述試片的絕緣電阻，然后將試片置于溫度為(40±2)℃，濕度約90%的恒溫恒濕箱中，保持96 h后取出，再放人用在(20±2)℃溫度下的特級(jí)酒石酸鈉的飽和溶液調(diào)節(jié)濕度(90%)的干燥器中，在1 h內(nèi)取出，然后在標(biāo)準(zhǔn)狀態(tài)下，使用絕緣電阻測(cè)定器測(cè)定表面絕緣電阻。表面絕緣電阻值大于108Ω才算符合可靠性要求。國(guó)外對(duì)于免清洗助焊劑的表面絕緣電阻要求較高，一般要求做加偏置電壓、長(zhǎng)時(shí)間潮熱試驗(yàn)。觀察焊后焊劑殘留物對(duì)表面絕緣電阻的時(shí)效影響，以此來衡量免清洗助焊劑的可靠性。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="珠海助焊劑參數(shù),助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】樹脂系列助焊劑松香系列焊劑根據(jù)有無添加活性劑和化學(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。 ①非活性化松香（R）：它是由純松香溶解在合適的溶劑（如異丙醇、乙醇等）中組成，其中沒有活性劑，消除氧化膜的能力有限，所以要求被焊件具有非常好的可焊性。通常應(yīng)用在一些使用中相對(duì)不允許有腐蝕危險(xiǎn)存在的電路中，如植入心臟的起搏器等。杭州正盟環(huán)保，專業(yè)生產(chǎn)***，環(huán)保級(jí)助焊劑。衢州求購(gòu)助焊劑</p><p style="text-indent:25px">廠家生產(chǎn)專為針對(duì)太陽能光伏行業(yè)開發(fā)的一款環(huán)保型免清洗助焊劑，可免除清洗工序。珠海助焊劑參數(shù)</p><p style="text-indent:25px">【正盟環(huán)保】免清洗助焊劑 ③可焊性：擴(kuò)展率≥80% 可焊性與腐蝕性是相互矛盾的一對(duì)指標(biāo)，為了使助焊劑具有一定的消除氧化物的能力，并且在預(yù)熱和焊接的整個(gè)過程中均能保持一定程度的活性，就必須包含某種酸。在免清洗助焊劑中用得多的是非水溶性醋酸系列，配方中可能還有胺、氨和合成樹脂，不同的配方會(huì)影響其活性和可靠性。不同的企業(yè)有不同的要求和內(nèi)部控制指標(biāo)，但必須符合焊接質(zhì)量高和無腐蝕性的使用要求。助焊劑的活性通常是用pH值來衡量的，免清洗助焊劑的pH值應(yīng)控制在產(chǎn)品規(guī)定的技術(shù)條件范圍內(nèi)（各生產(chǎn)廠家的pH值略有不同）。 ④符合環(huán)保要求：無毒，無強(qiáng)烈刺激性氣味，基本不污染環(huán)境，操作安全。珠海助焊劑參數(shù)</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。公司自創(chuàng)立以來，投身于助焊劑，錫絲，錫條，錫膏，是環(huán)保的主力軍。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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