廣州助焊劑噴涂真誠推薦杭州正盟環(huán)保工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="【正盟環(huán)保】助焊劑各成分的作用之觸變劑觸變劑其主要作用是賦予焊膏一定的觸變性能，即焊膏在受力狀態(tài)下粘度變小，以便于焊膏印刷。印刷完畢，在不受力狀態(tài)，其粘度增大，以保持固有形狀，廣州助焊劑噴涂，防止焊膏塌陷。增稠劑（又稱增粘劑）主要作用是增加"><meta name="keywords" content="廣州助焊劑噴涂,助焊劑"><link rel="canonical" href="http://www.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" content="no-transform" /> <meta 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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="7ro8ht7" 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="fegd7sj" 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>廣州助焊劑噴涂,助焊劑</p><p><span>***更新：</span>2020-08-31 15:23:56</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="osprtqc" 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="m33szw8" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="kyacjls" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！恐竸└鞒煞值淖饔弥|變劑觸變劑其主要作用是賦予焊膏一定的觸變性能，即焊膏在受力狀態(tài)下粘度變小，以便于焊膏印刷。印刷完畢，在不受力狀態(tài)，其粘度增大，以保持固有形狀，廣州助焊劑噴涂，防止焊膏塌陷。增稠劑（又稱增粘劑）主要作用是增加焊劑的粘度，以賦予焊膏一定的粘性，便于粘貼待焊元件。界面化合物生長抑制劑：在焊盤銅表面形成的合金涂覆層中含有金屬間化合物（IMC），它們的組成和厚度決定著組裝焊接時的可焊性。杭州正盟環(huán)保工程有限公司成立于1992年，廣州助焊劑噴涂，坐落于杭州錢江經(jīng)濟(jì)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，廣州助焊劑噴涂、研發(fā)、生產(chǎn)、營銷等相對優(yōu)勢，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)域成績斐然。正盟環(huán)保，現(xiàn)貨供應(yīng)，***助焊劑。廣州助焊劑噴涂</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑噴涂,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┲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。廣東助焊劑牌子水基環(huán)保免清洗焊劑，**于銅基材的熱浸鍍錫，廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑噴涂,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274472656/4640738.jpg"></div><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、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。 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，不產(chǎn)生霉菌；化學(xué)性能穩(wěn)定，易于貯藏</p><p style="text-indent:25px">【正盟環(huán)?！恐竸└鞒煞值淖饔弥袡C(jī)胺與酸復(fù)配使用有機(jī)胺本身含有氨基-NH︰具有活性，加入有機(jī)胺可促進(jìn)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(jī)胺。有機(jī)酸和有機(jī)胺混合會發(fā)生中和反應(yīng)，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(jī)酸和有機(jī)胺，這樣就能保證有機(jī)酸原有的活性，焊接結(jié)束后，剩余的有機(jī)酸又會被有機(jī)胺中和，使殘留物的酸性下降，減少腐蝕。因此加入了有機(jī)胺類以后，不僅可以調(diào)節(jié)助焊劑的酸度，可以使焊點(diǎn)光亮，在不降低焊劑活性的情況下，焊后腐蝕性降至低。生產(chǎn)助焊劑，批發(fā)質(zhì)量助焊劑，質(zhì)量保證，價格優(yōu)惠，量大從優(yōu)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑噴涂,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275830078/3192344.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】樹脂系列助焊劑在實(shí)際使用中發(fā)現(xiàn)，松香為單體時，化學(xué)活性較弱，對促進(jìn)焊料的潤濕往往不夠充分，因此需要添加少量的活性劑，用以提高它的活性。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MIL標(biāo)準(zhǔn)中分別稱為R、RMA、RA、RSA，而日本JIS標(biāo)準(zhǔn)則根據(jù)助焊劑的含氯量劃分為AA（0.1wt%以下）、A（0.1～0.5wt%）、B（0.5～1.0wt%）3種等級。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(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)域成績斐然。杭州正盟環(huán)保，水基環(huán)保助焊劑，環(huán)保級廠家直銷。湖州求購助焊劑</p><p style="text-indent:25px">買助焊劑，找杭州正盟環(huán)保工程有限公司！廣州助焊劑噴涂</p><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，化學(xué)活性較弱，對促進(jìn)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。廣州助焊劑噴涂</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，是一家生產(chǎn)型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下助焊劑，錫絲，錫條，錫膏深受客戶的喜愛。公司從事環(huán)保多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供質(zhì)量的產(chǎn)品及服務(wù)。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/1107558.html</p></div></div></div></div></div><div id="ose8fho" class="page-right twoColRt"><div id="in2nuwy" class="box01 margin10 clearfix"><h3><a 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