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class="proBig"><div id="pew39ls" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vjgvjkj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dsp7i7z" 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>金華清洗助焊劑,助焊劑</p><p><span>***更新：</span>2020-08-27 14:17:24</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="tnf94ol" 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="pogqkl4" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sbysega" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！渴裁词侵竸?一般情況下，為了保證焊接過程的順利進(jìn)行，我們所選擇的輔助材料都是松香。一般我們把助焊劑松香作為主要的成分以及混合物，這樣更能體現(xiàn)出助焊劑性能的優(yōu)勢以及劣勢，金華清洗助焊劑，而且焊接是電子裝配工藝過程當(dāng)中主要的部分，它可以直接的影響到電子產(chǎn)品的質(zhì)量的優(yōu)劣情況。【正盟環(huán)保】助焊劑的成分主要起作用成分是松香、有機(jī)溶劑、天然樹脂及其衍生物或合成樹脂、有機(jī)酸活化劑以及防腐蝕劑，金華清洗助焊劑、助溶劑和成膜劑。【正盟環(huán)?！恐竸┑淖饔?1，金華清洗助焊劑、有助于溶解焊母的氧化膜。 2、防止焊母材的再氧化的進(jìn)行。 3、降低焊料的張力，能夠加強(qiáng)其潤滑作用。 4、能夠保護(hù)焊接的母材 5、一般情況下，如果我們選擇了合適的助焊劑的話，還能夠使焊點(diǎn)起到美觀的作用?，F(xiàn)貨批發(fā)助焊劑，量大從優(yōu)。金華清洗助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華清洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?②弱活性化松香（RMA）：這類助焊劑中添加的活性劑有乳酸、檸檬酸、硬脂酸等有機(jī)酸以及鹽基性有機(jī)化合物。添加這些弱活性劑后，能夠促進(jìn)潤濕的進(jìn)行，但母材上的殘留物仍然不具有腐蝕性，除了具有高可靠性的航空、航天產(chǎn)品或細(xì)間距的表面安裝產(chǎn)品需要清洗外，一般民用消費(fèi)類產(chǎn)品（如收錄機(jī)、電視機(jī)等）均不需設(shè)立清洗工序。在采用弱活性化松香時(shí)，對(duì)被焊件的可焊性也有嚴(yán)格的要求。 ③活性化松香（RA）及超活性化松香（RSA）：在活性化松香助焊劑中，添加的強(qiáng)活性劑有鹽酸苯胺、鹽酸聯(lián)氨等鹽基性有機(jī)化合物，這種助焊劑的活性是明顯提高了，但焊接后殘留物中氯離子的腐蝕變成不可忽視的問題，所以，在電子產(chǎn)品的裝聯(lián)中一般很少應(yīng)用。隨著活性劑的改進(jìn)，已開發(fā)了在焊接溫度下能將殘?jiān)纸鉃榉歉g性物質(zhì)的活性劑，這些大多數(shù)是有機(jī)化化合物的衍生物。金華清洗助焊劑廠家直銷國標(biāo)級(jí)助焊劑批發(fā)價(jià)銷售價(jià)格合理，歡迎選購。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華清洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】什么是免清洗，什么是免清洗助焊劑免清洗是指在電子裝聯(lián)生產(chǎn)中采用低固態(tài)含量、無腐蝕性的助焊劑，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)保】松香和焊錫膏兩者有何分別？無機(jī)助焊劑一般是某些酸或者鹽，比如正磷酸H3PO4，有機(jī)助焊劑主要是某些有機(jī)酸或者有機(jī)鹵素；相對(duì)來說，無機(jī)助焊劑活性相當(dāng)強(qiáng)，去除氧化膜效果較好，但腐蝕性也強(qiáng)，很容易傷及金屬及焊點(diǎn)，一般不能在焊接電子產(chǎn)品中運(yùn)用。焊錫膏就是用機(jī)油乳化后的無機(jī)焊劑，焊接后可用溶劑清洗，不過電路板的有些部位是很難清洗的，所以一般不推薦運(yùn)用焊錫膏。有機(jī)助焊劑活性僅次于無機(jī)助焊劑，也有一定的腐蝕性，且殘?jiān)灰浊逑?，揮發(fā)物對(duì)人體有害。松香的主要成份是松香酸和海松酸，一般成中性，液態(tài)松香有一定活性，呈現(xiàn)較弱的酸性，能與金屬表面氧化物發(fā)生反應(yīng)，生成松香酸銅等化合物，并懸浮在焊錫表面，且運(yùn)用的時(shí)候無腐蝕，絕緣性強(qiáng)。一般說來，松香是常用的助焊劑。生產(chǎn)助焊劑，批發(fā)質(zhì)量助焊劑，質(zhì)量保證，價(jià)格優(yōu)惠，量大從優(yōu)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華清洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275605468/6502823.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！俊局竸┬≈R(shí)】助焊劑各成分的作用被焊金屬工件表面存在氧化物、灰塵等污垢，阻礙工件基體金屬和焊料之間以原子狀態(tài)相互擴(kuò)散，因此必須去除氧化物等以使表面清潔露出金屬基體，但是被清潔的金屬基體表面的原子在大氣中又立刻被氧化，在焊接溫度下，氧化速度更快。所以在焊接過程中加入助焊劑，用來協(xié)助提供沒有氧化層的金屬表面，并保持這些表面的無氧化物狀態(tài)，直到焊錫與金屬表面完成焊接過程。同時(shí)依靠焊劑的化學(xué)作用，與被焊金屬表面的氧化物化合，在焊接溫度下形成液態(tài)化合物，使被焊金屬部位表面的金屬原子與熔融焊料的原子相互擴(kuò)散，以達(dá)到錫焊連接的目的。在焊接過程中助焊劑還能促進(jìn)焊錫的流動(dòng)和擴(kuò)散，通過減小表面不平度來影響焊錫表面張力在焊錫擴(kuò)散方向上的平衡。理想的助焊劑除化學(xué)活性外，還要具有良好的熱穩(wěn)定性、粘附力、擴(kuò)展力、電解活性、環(huán)境穩(wěn)定性、化學(xué)官能團(tuán)及其反應(yīng)特性、流變特性、對(duì)通用清洗溶液和設(shè)備的適應(yīng)性等。助焊劑的上述作用都是通過其中的活化劑、溶劑、表面活性劑等成分的作用來實(shí)現(xiàn)的。環(huán)保級(jí)助焊劑，生產(chǎn)加工，廠家直發(fā)。溫州助焊劑要求</p><p style="text-indent:25px">助焊劑廠家，高質(zhì)量現(xiàn)貨供應(yīng)，量大從優(yōu)。金華清洗助焊劑</p><p style="text-indent:25px">【正盟環(huán)保】免清洗助焊劑的優(yōu)越性 ①提高經(jīng)濟(jì)效益：實(shí)現(xiàn)免清洗后，相當(dāng)直接的就是不必進(jìn)行清洗工作，因此可以大量節(jié)約清洗人工、設(shè)備、場地、材料（水、溶劑）和能源的消耗，同時(shí)由于工藝流程的縮短，節(jié)約了工時(shí)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(shí)施，要求嚴(yán)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(jìn)的工藝手段，如噴霧法涂敷助焊劑、在惰性氣體保護(hù)下焊接等。實(shí)施免清洗工藝，可避免清洗應(yīng)力對(duì)焊接組件的損傷，因此免清洗對(duì)提高產(chǎn)品質(zhì)量是極為有利的。 ③有利于環(huán)境保護(hù)：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(jī)物（VOC）的使用，從而對(duì)保護(hù)臭氧層具有積極作用。金華清洗助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司位于浙江省杭州市，創(chuàng)立于2011-03-18。公司業(yè)務(wù)分為助焊劑，錫絲，錫條，錫膏等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。公司秉持誠信為本的經(jīng)營理念，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，打造環(huán)保質(zhì)量品牌。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>文章來源地址: http://m.cdcfah.com/cp/1059780.html</p></div></div></div></div></div><div id="lf7v9a3" class="page-right twoColRt"><div id="swdvmyi" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wgdq3w3" class="recomPic likePro"><a 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