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class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8nuqsel" 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>產品關鍵詞：</span>臺州免洗助焊劑,助焊劑</p><p><span>***更新：</span>2020-08-29 18:16:29</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="rldkhtv" 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="qf82dip" class="page-proshow02"><p class="title">詳細說明</p><div id="lfxe38c" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】助焊劑的種類很多，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，臺州免洗助焊劑，臺州免洗助焊劑，臺州免洗助焊劑，以便提高它的活性。杭州正盟環(huán)保，現(xiàn)貨供應環(huán)保級助焊劑，洗焊劑，環(huán)保錫絲。臺州免洗助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺州免洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275439453/9758486.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸└鞒煞值淖饔弥罨瘎┑淖饔脵C理活化劑主要作用是在焊接溫度下去除焊盤和焊料表面的氧化物，并形成保護層，防止基體的再次氧化，從而提高焊料和焊盤之間的潤濕性。助焊劑活化劑的成分一般為氫氣、無機鹽、酸類和胺類，以及它們的復配組合物。【正盟環(huán)?！恐竸└鞒煞值淖饔弥畾錃?、無機鹽氫氣和無機鹽如氯化亞錫、氯化鋅、氯化銨等是利用其還原性與氧化物反應，如：氣體助焊劑中的氫氣，在焊接之后水是其獨有的殘留物；而且氫的還原作用能有效地去除金屬表面的氧化物，把氧化物轉化為水。 MxOy＋yH 2 ＝xM＋yH 2 O 同時，氫還為金屬表面提供保護氣體，防止金屬表面在焊接完成之前再氧化。寧波助焊劑參數(shù)杭州正盟環(huán)保，水基環(huán)保助焊劑，環(huán)保級廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺州免洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637336031689003906/1471739.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?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。松香在固態(tài)時呈非活性，只有液態(tài)時才呈活性，其熔點為127℃活性可以持續(xù)到315℃。錫焊的溫度為240～250℃，所以正處于松香的活性溫度范圍內，且它的焊接殘留物不存在腐蝕問題，這些特性使松香為非腐蝕性焊劑而被廣泛應用于電子設備的焊接中。為了不同的應用需要，松香助焊劑有液態(tài)、糊狀和固態(tài)3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。</p><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。同時依靠焊劑的化學作用，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散，以達到錫焊連接的目的。在焊接過程中助焊劑還能促進焊錫的流動和擴散，通過減小表面不平度來影響焊錫表面張力在焊錫擴散方向上的平衡。理想的助焊劑除化學活性外，還要具有良好的熱穩(wěn)定性、粘附力、擴展力、電解活性、環(huán)境穩(wěn)定性、化學官能團及其反應特性、流變特性、對通用清洗溶液和設備的適應性等。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現(xiàn)的。杭州正盟環(huán)保，生產質量環(huán)保，環(huán)保級助焊劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺州免洗助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274804687/3589720.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！恐竸┳饔?熔融焊料張力熔融焊料表面具有一定的張力，就像雨水落在荷葉上，由于液體的表面張力會立即聚結成圓珠狀的水滴。熔融焊料的表面張力會阻止其向母材表面漫流，影響潤濕的正常進行。當助焊劑覆蓋在熔融焊料的表面時，可降低液態(tài)焊料的表面張力，使?jié)櫇裥阅苊黠@得到提高保護焊接母材被焊材料在焊接過程中已破壞了原本的表面保護層。好的助焊劑在焊完之后，并迅速恢復到保護焊材的作用。能加快熱量從烙鐵頭向焊料和被焊物表面?zhèn)鬟f；合適的助焊劑還能使焊點美觀廠家直銷助焊劑，批發(fā)價銷售，可定制，歡迎選購。珠海助焊劑國標</p><p style="text-indent:25px">長期生產質量環(huán)保級助焊劑，免清洗焊劑。臺州免洗助焊劑</p><p style="text-indent:25px">【正盟環(huán)?！恐竸┌垂δ芊诸愑校菏纸钢竸⒉ǚ搴钢竸┘安讳P鋼助焊劑；前面兩者為廣大用戶所熟悉了解，這里解釋不銹鋼助焊劑,它是專門針對不銹鋼而焊接的一種化學藥劑，一般的焊接只能完成對銅或錫表面的焊接，但不銹鋼助焊劑可以完成對銅、鐵、鍍鋅板、鍍鎳、各類不銹鋼等的焊接；助焊劑的種類很多，大體上可分為有機、無機和樹脂三大系列。【正盟環(huán)?！恐竸┚邆錀l件 ⑴熔點應低于焊料。 ⑵表面的張力、黏度、密度要小于焊料。 ⑶不能腐蝕母材，在焊接溫度下，應能增加焊料的流動性，去除金屬表面氧化膜。 ⑷焊劑殘渣容易去除。 ⑸不會產生有毒氣體和臭味，以防對人體的危害和污染環(huán)境。臺州免洗助焊劑</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。正盟環(huán)保致力于為客戶提供質量的助焊劑，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。公司秉持誠信為本的經營理念，在環(huán)保深耕多年，以技術為先導，以自主產品為重點，發(fā)揮人才優(yōu)勢，打造環(huán)保質量品牌。正盟環(huán)保憑借創(chuàng)新的產品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，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/1085667.html</p></div></div></div></div></div><div id="3qs2yax" class="page-right twoColRt"><div id="x3hy3ta" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qkczbxz" class="recomPic likePro"><a href="http://www.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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="3qnuwij" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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