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href="http://www.cdcfah.com/cp/third-xifuji_qitaxifuji/">其他吸附劑</a>?金華金屬助焊劑歡迎來電杭州正盟環(huán)保工程供應</p><div id="vu2lyam" class="leftbox clearfix"><h1>金華金屬助焊劑歡迎來電杭州正盟環(huán)保工程供應</h1><div id="jtnolxz" class="proBig"><div id="vzroqxe" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dm7dfmt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dhoqso3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>金華金屬助焊劑,助焊劑</p><p><span>***更新：</span>2020-08-31 02:18:35</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="8r4vs2n" 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: </span>0571-88117763</p><p><span>地址: </span>順風路528號2號樓南樓東向3層</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ztv3jlv" class="page-proshow02"><p class="title">詳細說明</p><div id="a8pcevx" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】助焊劑各成分的作用之有機胺與酸復配使用有機胺本身含有氨基-NH︰具有活性，加入有機胺可促進焊接效果。為了減小助焊劑對銅板的腐蝕作用，可在配制的助焊劑中加入一定量的緩蝕劑，緩蝕劑通常選擇有機胺。有機酸和有機胺混合會發(fā)生中和反應，生成中和產(chǎn)物。這種中和產(chǎn)物是不穩(wěn)定的，在焊接溫度下會迅速分解，重新生成有機酸和有機胺，這樣就能保證有機酸原有的活性，焊接結(jié)束后，剩余的有機酸又會被有機胺中和，使殘留物的酸性下降，減少腐蝕，金華金屬助焊劑。因此加入了有機胺類以后，金華金屬助焊劑，不僅可以調(diào)節(jié)助焊劑的酸度，金華金屬助焊劑，可以使焊點光亮，在不降低焊劑活性的情況下，焊后腐蝕性降至低。廠家直銷國標級助焊劑批發(fā)價銷售價格合理，歡迎選購。金華金屬助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華金屬助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg"></div><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，同時降低熔點，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，熔點為327℃。但是鉛，是一種不錯的錫焊料添加料，當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），并且價格低、導電性好、焊點可靠。廣東助焊劑危害杭州正盟環(huán)保，專業(yè)生產(chǎn)***，環(huán)保級助焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華金屬助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg"></div><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酸性強弱對基材影響的進一步驗證，衡量腐蝕性大小一般是在使用相當普遍的基材銅上做銅鏡腐蝕試驗。這項指標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的是助焊劑焊后產(chǎn)品可靠性，按照不同的測試標準對表面絕緣電阻值的要求也不一樣，按照GBT9491-2002標準SIR大于1011Ω，而按照IPC J-STD-004標準，SIR大于108Ω，因測試方法不同，兩者的對比并無意義。但可以確定的是SIR值是越大對焊后產(chǎn)品越有利。電化學遷移：電化學遷移也是對表面絕緣電阻值的進一步要求，在更極端的環(huán)境下考察助焊劑的表面絕緣電阻。當然該項指標亦越大對焊后產(chǎn)品越有利。除上述詳細的技術(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；需要對所選助焊劑，進行試驗驗證和有效評估。</p><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?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溶劑，故又稱為有機溶劑助焊劑，其主要成分是松香。松香在固態(tài)時呈非活性，只有液態(tài)時才呈活性，其熔點為127℃活性可以持續(xù)到315℃。錫焊的溫度為240～250℃，所以正處于松香的活性溫度范圍內(nèi)，且它的焊接殘留物不存在腐蝕問題，這些特性使松香為非腐蝕性焊劑而被廣泛應用于電子設備的焊接中。為了不同的應用需要，松香助焊劑有液態(tài)、糊狀和固態(tài)3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。買助焊劑認準正盟牌。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華金屬助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸┚邆湫阅?⑴助焊劑應有適當?shù)幕钚詼囟确秶Ｔ诤噶先刍伴_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。焊劑的熔點應低于焊料的熔點，但不易相差過大。 ⑵助焊劑應有良好的熱穩(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，促進焊料對母材的潤濕。 ⑷助焊劑的殘留物不應有腐蝕性且容易清洗；不應析出有毒、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；化學性能穩(wěn)定，易于貯藏。助焊劑保證焊接過程順利進行，廠價直銷。紹興助焊劑特性</p><p style="text-indent:25px">環(huán)保助焊劑，正盟環(huán)保生產(chǎn)批發(fā)工業(yè)紙質(zhì)量助焊劑。金華金屬助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！棵馇逑吹膬?yōu)越性 ①提高經(jīng)濟效益：實現(xiàn)免清洗后，直接的就是不必進行清洗工作，因此可以大量節(jié)約清洗人工、設備、場地、材料（水、溶劑）和能源的消耗，同時由于工藝流程的縮短，節(jié)約了工時提高了生產(chǎn)效率。 ②提高產(chǎn)品質(zhì)量：由于免清洗技術(shù)的實施，要求嚴格控制材料的質(zhì)量，如助焊劑的腐蝕性能（不允許含有鹵化物）、元器件和印制電路板的可焊性等；在裝聯(lián)過程中，需要采用一些先進的工藝手段，如噴霧法涂敷助焊劑、在惰性氣體保護下焊接等。實施免清洗工藝，可避免清洗應力對焊接組件的損傷，因此免清洗對提高產(chǎn)品質(zhì)量是極為有利的。 ③有利于環(huán)境保護：采用免清洗技術(shù)后，可停止使用ODS物質(zhì)，也大幅度地減少了揮發(fā)性有機物（VOC）的使用，從而對保護臭氧層具有積極作用。金華金屬助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司創(chuàng)立于2011-03-18，總部位于浙江省杭州市，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)濟開發(fā)區(qū)。多年公司秉承“誠信、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)、營銷等相對優(yōu)勢，致力于“產(chǎn)、學、研”相結(jié)合和科研成果的轉(zhuǎn)化，先后與同濟大學環(huán)境科學與工程學院、原化工部成都研究所等學術(shù)機構(gòu)建立技術(shù)合作關(guān)系，在電子化學、環(huán)境功能材料等領(lǐng)域成績斐然。公司有同濟大學聯(lián)合實驗室、科研成果孵化基地。成產(chǎn)基地、工程中心和銷售中心組成，擁有多項自主知識產(chǎn)權(quán)和新型實用技術(shù)，多臺套先進生產(chǎn)、分析、檢測、計量設備，嚴格依照ISO090001:2000質(zhì)量保證體系運行。正盟公司以先進實用技術(shù)、質(zhì)量穩(wěn)定的產(chǎn)品和及時質(zhì)量的服務在業(yè)界廣受贊譽，產(chǎn)品廣泛應用于電子、通訊、信息、航空航天、醫(yī)藥、石化等領(lǐng)域，取得良好市場反響和經(jīng)驗業(yè)績。今后將繼續(xù)堅持技術(shù)創(chuàng)新、品質(zhì)提升和優(yōu)化市場響應，竭力為客戶帶來嶄新體驗，不斷為客戶提供質(zhì)量產(chǎn)品。竭誠歡迎新老客戶和社會各界朋友蒞臨我司參觀考察，指導交流，期待與您攜手、共創(chuàng)輝煌明天。的公司。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)濟開發(fā)區(qū)。多年公司秉承“誠信、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)、營銷等相對優(yōu)勢，致力于“產(chǎn)、學、研”相結(jié)合和科研成果的轉(zhuǎn)化，先后與同濟大學環(huán)境科學與工程學院、原化工部成都研究所等學術(shù)機構(gòu)建立技術(shù)合作關(guān)系，在電子化學、環(huán)境功能材料等領(lǐng)域成績斐然。公司有同濟大學聯(lián)合實驗室、科研成果孵化基地。成產(chǎn)基地、工程中心和銷售中心組成，擁有多項自主知識產(chǎn)權(quán)和新型實用技術(shù)，多臺套先進生產(chǎn)、分析、檢測、計量設備，嚴格依照ISO090001:2000質(zhì)量保證體系運行。正盟公司以先進實用技術(shù)、質(zhì)量穩(wěn)定的產(chǎn)品和及時質(zhì)量的服務在業(yè)界廣受贊譽，產(chǎn)品廣泛應用于電子、通訊、信息、航空航天、醫(yī)藥、石化等領(lǐng)域，取得良好市場反響和經(jīng)驗業(yè)績。今后將繼續(xù)堅持技術(shù)創(chuàng)新、品質(zhì)提升和優(yōu)化市場響應，竭力為客戶帶來嶄新體驗，不斷為客戶提供質(zhì)量產(chǎn)品。竭誠歡迎新老客戶和社會各界朋友蒞臨我司參觀考察，指導交流，期待與您攜手、共創(chuàng)輝煌明天。的品牌企業(yè)，為客戶提供質(zhì)量的助焊劑，錫絲，錫條，錫膏。正盟環(huán)保始終以本分踏實的精神和必勝的信念，影響并帶動同事和團隊取得成功。正盟環(huán)保始終關(guān)注環(huán)保市場，以敏銳的市場洞察力以正確確認，實現(xiàn)與客戶的成長共贏。</p></p><br 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