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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>?舟山焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</p><div id="fjvp22q" class="leftbox clearfix"><h1>舟山焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</h1><div id="0tvmtfw" class="proBig"><div id="x3qx7cx" 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="52qc323" 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="itpwd79" 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>舟山焊錫助焊劑,助焊劑</p><p><span>***更新：</span>2020-08-27 16:20:05</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="oxjq849" 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2號樓南樓東向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="oxjq84t" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="od8plxo" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】助焊劑具備性能 ⑴助焊劑應(yīng)有適當(dāng)?shù)幕钚詼囟确秶?。在焊料熔化前開始起作用，在施焊過程中較好地發(fā)揮去除氧化膜，舟山焊錫助焊劑、降低液態(tài)焊料表面張力的作用。焊劑的熔點(diǎn)應(yīng)低于焊料的熔點(diǎn)，但不易相差過大，舟山焊錫助焊劑。 ⑵助焊劑應(yīng)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(yīng)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(jìn)焊料對母材的潤濕。 ⑷助焊劑的殘留物不應(yīng)有腐蝕性且容易清洗；不應(yīng)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，舟山焊錫助焊劑，不產(chǎn)生霉菌；化學(xué)性能穩(wěn)定，易于貯藏買助焊劑找正盟環(huán)保。舟山焊錫助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】常用的助焊劑助焊劑，也有人稱為：”焊劑、焊藥“。經(jīng)過清潔處理的焊件表面，在加熱焊接時(shí)，總是很快又被氧化，形成阻焊層，所以必須使用助焊劑，清理氧化物的同時(shí)，隔絕氧氣阻止再次氧化，還能降低液態(tài)焊料的表面張力，增加它的流動(dòng)性，讓焊點(diǎn)表面光潔美觀，焊點(diǎn)內(nèi)部密實(shí)。【正盟環(huán)?！砍Ｒ姷闹竸┯猛竞托阅?助焊劑，在溫度升高時(shí)，能流淌到焊接表面散開，在去除焊件表面的氧化物的同時(shí)，隔絕了與氧氣的接觸，保持焊件表面‘干凈’，還能讓焊料的流淌性變好，利于焊料流淌到焊接的縫隙中。需要注意的是，氯化鋅和稀鹽酸，雖然有很好的去污能力，使用很方便，但是腐蝕能力也很強(qiáng)，盡量避免在電路板焊接中使用。同樣的，焊錫膏，也是使用方便的助焊劑，但是會有很多殘留物，焊接時(shí)飛濺的物質(zhì)中有很多酸性物質(zhì)，同樣也會對電路板的其他部分造成腐蝕。如果要使用氯化鋅和稀鹽酸或者焊錫膏，來焊接電路板，焊接完畢后，必須徹底清洗，以免因?yàn)楦g造成電路板出現(xiàn)，無法預(yù)期的故障。業(yè)余條件，和不洗板的情況下，焊接電路板，相當(dāng)常用，適合助焊劑是‘松香’，它的優(yōu)點(diǎn)是，無腐蝕性，不會沾染灰塵。臺州活性助焊劑正盟環(huán)保，現(xiàn)貨供應(yīng)，***助焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274609375/2746468.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！俊局竸┬≈R】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。</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。廠家直銷光伏組件助焊劑，質(zhì)量保證，價(jià)格優(yōu)惠。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！俊局竸┬≈R】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，無鉛化對助焊劑的性能提出了更高的要求，助焊劑已由傳統(tǒng)的松香型向無鹵、無松香、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，使助焊劑的性能更加優(yōu)良。 1、助焊劑的基本組成國內(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、成膜劑等。浙江廠家直銷助焊劑，質(zhì)量環(huán)保助焊劑。深圳清洗助焊劑</p><p style="text-indent:25px">正盟牌助焊劑你值得擁有！舟山焊錫助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！恐竸┲羞€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，增加焊劑對焊粉和焊盤的親潤性。舟山焊錫助焊劑</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)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，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://www.cdcfah.com/cp/1060813.html</p></div></div></div></div></div><div id="zd4hof2" class="page-right 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