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href="http://m.cdcfah.com/cp/third-xifuji_qitaxifuji/">其他吸附劑</a>?浙江焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應</p><div id="pt9s8tv" class="leftbox clearfix"><h1>浙江焊錫助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應</h1><div id="icwipbs" class="proBig"><div id="874osja" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275751953/4246134.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8irx3o3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275751953/4246134.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="58h8ehy" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>浙江焊錫助焊劑,助焊劑</p><p><span>***更新：</span>2020-09-06 10:14:45</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="t3gkjln" 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="gful32g" class="page-proshow02"><p class="title">詳細說明</p><div id="o77p8oa" class="box"><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。高沸點的醇保護效果較好，但粘度大、使用不便；低沸點的醇黏度低，但保護性差，因而可以考慮選擇混合醇的方法。一般為高沸點和低沸點醇的混合物，有的使用水溶性的醇和不溶于水的醚作溶劑。李偉浩以超支化結構和平均分子量為2000的水溶性聚合物作為助焊劑載體，超支化的分子構型不僅能提高聚合物的熱分解溫度，浙江焊錫助焊劑，同時可以降低聚合物的粘度，浙江焊錫助焊劑，增強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，浙江焊錫助焊劑，增加焊劑對焊粉和焊盤的親潤性。買助焊劑認準正盟牌。浙江焊錫助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275751953/4246134.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、無機和樹脂三大系列。 2、有機：有機系列助焊劑的助焊作用介于無機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。含有有機酸的水溶性焊劑以乳酸、檸檬酸為基礎，由于它的焊接殘留物可以在被焊物上保留一段時間而無嚴重腐蝕。所以，可以用在電子設備的裝聯(lián)中，但是通常不用在SMT的焊膏中，因為它沒有松香焊劑的粘稠性。 3、樹脂：在電子產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，化學活性較弱，對促進焊料的潤濕往往不夠充分，所以需要添加少量的活性劑，以便提高它的活性。浙江助焊劑正盟生產質量助焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江焊錫助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274472656/4640738.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！渴裁词敲馇逑?，什么是免清洗助焊劑免清洗是指在電子裝聯(lián)生產中采用低固態(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到離子潔凈度的標準（美軍標MIL-P-228809離子污染等級劃分為：一級≤1.5ugNaCl/cm2無污染；二級≤1.5～5.0ugNACl/cm2質量高；三級≤5.0～10.0ugNaCl/cm2符合要求；四級>10.0ugNaCl/cm2不干凈），可直接進入下道工序的工藝技術。必須指出的是“免清洗”與“不清洗”是相對不同的2個概念，所謂“不清洗”是指在電子裝聯(lián)生產中采用傳統(tǒng)的松香助焊劑（RMA）或有機酸助焊劑，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品的質量要求，如家用電子產品、專業(yè)聲視設備、低成本辦公設備等產品，它們生產時通常是“不清洗”的，但相對不是“免清洗”。</p><p style="text-indent:25px">【正盟環(huán)保】助焊劑具備性能 ⑴助焊劑應有適當的活性溫度范圍。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、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，不產生霉菌；化學性能穩(wěn)定，易于貯藏。***環(huán)保級助焊劑生產加工，現貨批發(fā)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江焊錫助焊劑,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抗夥M件助焊劑是專為太陽能自動串焊機設計的一款極低固含量的高可靠焊接性能的環(huán)保助焊劑。本型號產品以混合醇和醇醚類作為增溶劑【正盟環(huán)?！俊局竸縉CF-1087A助焊劑是針對電子行業(yè)開發(fā)的一款環(huán)保型免清洗助焊劑。助焊劑體系的活性經過特別設計，合適的固體含量及其內部活性機理保證了良好的焊接效果，無殘渣影響電性能，焊后殘留物極少，在無特殊需求條件下，可免除清洗工序，進而節(jié)約制造商的生產費用和工作時間。環(huán)保助焊劑，正盟環(huán)保生產批發(fā)工業(yè)紙質量助焊劑。江蘇助焊劑上錫</p><p style="text-indent:25px">正盟環(huán)保供應環(huán)保級助焊劑，水基環(huán)保免清洗焊劑。浙江焊錫助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?松香系列焊劑根據有無添加活性劑和化學活性的強弱，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MIL標準中分別稱為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。通常應用在一些使用中相對不允許有腐蝕危險存在的電路中，如植入心臟的起搏器等。浙江焊錫助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司主要經營范圍是環(huán)保，擁有一支專業(yè)技術團隊和良好的市場口碑。正盟環(huán)保致力于為客戶提供良好的助焊劑，錫絲，錫條，錫膏，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于環(huán)保行業(yè)的發(fā)展。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1178889.html</p></div></div></div></div></div><div id="p3rixog" class="page-right twoColRt"><div id="lkmyvm7" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="y7sugdk" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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