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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="tnp4dpr" 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="ncuelse" 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>紹興助焊劑制作,助焊劑</p><p><span>***更新：</span>2020-11-26 07:06:50</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="r8r3ebi" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="dsztvx2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mlyiubn" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！侩娎予F焊接過(guò)程中，如何選擇助焊劑？焊錫材料是電子行業(yè)的生產(chǎn)與維修工作中必不可少的，在電烙鐵的使用過(guò)程中，我們經(jīng)常會(huì)用到。焊錫膏---膏狀粘稠體，主要成分金屬粉末、松香、有機(jī)酸、觸變劑、活性劑。用于SMT自動(dòng)貼裝工藝的焊接。助焊劑是統(tǒng)稱(chēng)，松香、焊錫膏都屬于助焊劑，關(guān)鍵的用途是增加焊接時(shí)焊料與被焊物體的浸潤(rùn)效果(浸潤(rùn)不佳的話(huà),焊錫不能很好的附著在被焊物體上，出現(xiàn)圓圓的球狀,很容易虛焊)。其他還有比如去除氧化、輔助熱傳導(dǎo)、降低金屬表面張力、使焊點(diǎn)美觀等等。助焊劑分成三大類(lèi)：一是無(wú)機(jī)助焊劑，二是有機(jī)助焊劑，三是松香，紹興助焊劑制作。杭州正盟環(huán)保，紹興助焊劑制作，紹興助焊劑制作，現(xiàn)貨供應(yīng)環(huán)保級(jí)助焊劑，洗焊劑，環(huán)保錫絲。紹興助焊劑制作</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興助焊劑制作,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274599609/8028515.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】【助焊劑小知識(shí)】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(guò)程和產(chǎn)品質(zhì)量。隨著RoHS 和WEEE指令的實(shí)行，無(wú)鉛化對(duì)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(wú)鹵、無(wú)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(guó)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。嘉興助焊劑牌子環(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興助焊劑制作,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！繜o(wú)松香型免清洗助焊劑是采用無(wú)鹵素、無(wú)松香和合成樹(shù)脂以及新型活性劑的體系。無(wú)松香、無(wú)鹵素的免清洗型助焊劑主要由活化劑、溶劑、成膜物和抗氧化熱穩(wěn)定劑組成。溶劑選用高沸點(diǎn)醇和低沸點(diǎn)醇的混合物；活化劑選用有機(jī)酸和有機(jī)胺的混合物；成膜物選用合成高分子樹(shù)脂材料，這類(lèi)物質(zhì)具有良好的電氣性能，常溫下起保護(hù)膜作用不顯活性，在200℃~300℃的焊接溫度下顯示活性。硅改性丙烯酸樹(shù)脂具有無(wú)腐蝕、防潮及三防性能優(yōu)異的特點(diǎn)，可將其作為成膜劑。另外選用抗氧化熱穩(wěn)定劑對(duì)苯二酚、保護(hù)劑苯駢三氮唑作為輔助成分。如以已二酸、癸二酸、苯駢三氮唑?yàn)榛钚猿煞?，乙二醇單丁醚、乙醇、異丁醇為溶劑，美?guó)托馬思兩性活性劑、碳氟離子表面活性劑、快速滲透劑OT為特殊成分的低固含量免清洗助焊劑。 </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(lèi)、酯類(lèi)、醇醚類(lèi)、烴類(lèi)、酮類(lèi)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(rùn)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(duì)焊粉和焊盤(pán)的親潤(rùn)性。長(zhǎng)期生產(chǎn)質(zhì)量環(huán)保級(jí)助焊劑，免清洗焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興助焊劑制作,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274873046/806821.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸┏煞?近幾十年來(lái)，在電子產(chǎn)品生產(chǎn)錫焊工藝過(guò)程中，一般多使用主要由松香、樹(shù)脂、含鹵化物的活性劑、添加劑和有機(jī)溶劑組成的松香樹(shù)脂系助焊劑.這類(lèi)助焊劑雖然可焊性好，成本低，但焊后殘留物高.其殘留物含有鹵素離子，會(huì)逐步引起電氣絕緣性能下降和短路等問(wèn)題，要解決這一問(wèn)題，必須對(duì)電子印制板上的松香樹(shù)脂系助焊劑殘留物進(jìn)行清洗.這樣不但會(huì)增加生產(chǎn)成本，而且清洗松香樹(shù)脂系助焊劑殘留的清洗劑主要是氟氯化合物.這種化合物是大氣臭氧層的損耗物質(zhì)，屬于禁用和被淘汰之列.仍有不少公司沿用的工藝是屬于前述采用松香樹(shù)指系助焊劑焊錫再用清洗劑清洗的工藝，效率較低而成本偏高。杭州正盟環(huán)保，生產(chǎn)環(huán)保助焊劑，現(xiàn)貨供應(yīng)。紹興助焊劑制作</p><p style="text-indent:25px">熱誠(chéng)歡迎各界朋友前來(lái)參觀、考察、治談業(yè)務(wù)。紹興助焊劑制作</p><p style="text-indent:25px">【正盟環(huán)?！恐竸┏煞?免洗助焊劑主要原料為有機(jī)溶劑，松香樹(shù)脂及其衍生物、合成樹(shù)脂表面活性劑、有機(jī)酸活化劑、防腐蝕劑，助溶劑、成膜劑.簡(jiǎn)單地說(shuō)是各種固體成分溶解在各種液體中形成均勻透明的混合溶液，其中各種成分所占比例各不相同，所起作用不同有機(jī)溶劑：酮類(lèi)、醇類(lèi)、酯類(lèi)中的一種或幾種混合物，常用的有乙醇、丙醇、丁醇;**、甲苯異丁基甲酮;醋酸乙酯,醋酸丁酯等.作為液體成分，其主要作用是溶解助焊劑中的固體成分，使之形成均勻的溶液，便于待焊元件均勻涂布適量的助焊劑成分，同時(shí)它還可以清洗輕的臟物和金屬表面的油污.紹興助焊劑制作</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司致力于環(huán)保，是一家生產(chǎn)型公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下助焊劑，錫絲，錫條，錫膏深受客戶(hù)的喜愛(ài)。公司秉持誠(chéng)信為本的經(jīng)營(yíng)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(shì)，打造環(huán)保良好品牌。正盟環(huán)保立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶(hù)的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2150428.html</p></div></div></div></div></div><div id="gv87jl7" class="page-right twoColRt"><div id="cgi8axe" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x33uoa8" 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