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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pyu8xx3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274804687/3589720.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kxox2ls" 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>嘉興助焊劑種類,助焊劑</p><p><span>***更新：</span>2020-09-01 04:14:51</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="wul8kb0" 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="lxy43bc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="qjftj43" class="box"><p><p style="text-indent:25px">【正盟環(huán)保】對于使用廠商來說，因?yàn)橹竸┑某煞菔菦]有辦法做出測試的.如果要想了解助焊劑溶劑是否揮發(fā)，可以簡單的從比重上測量,如果比重增大很多，就可以斷定溶劑有所揮發(fā).選擇助焊劑時(shí)，有以下幾點(diǎn)建議給使用廠商：一、聞氣味初步斷定是用何種溶劑如甲醇味道比較小但很嗆，異丙醇味道比較重一些，乙醇就有醇香味，雖然說供應(yīng)商也可能用混合溶劑，但要求供應(yīng)商提供成份報(bào)告，一般他們還是會提供的；但是，異丙醇的價(jià)格大概是甲醇的3-4倍，如果和供應(yīng)商壓價(jià)的厲害，可能這里面的東西就不好說了二、確定樣品這也是很多廠商選擇助焊劑的根本的方法，在確認(rèn)樣品時(shí)，應(yīng)要求供應(yīng)商提供相關(guān)參數(shù)報(bào)告，并與樣品對照，如樣品確認(rèn)OK，嘉興助焊劑種類，后續(xù)交貨時(shí)應(yīng)按原有參數(shù)對照，出現(xiàn)異常時(shí)應(yīng)檢查比重，酸度值等,助焊劑的發(fā)煙量也是很重要的一個(gè)指標(biāo)。三，嘉興助焊劑種類、助焊劑市場是良莠不齊，選擇時(shí)對供應(yīng)商的資質(zhì)應(yīng)該進(jìn)行確切了解，如有必要可以去廠商去看廠，嘉興助焊劑種類，如果是不正規(guī)的焊劑廠商，是很怕這一套的。長期生產(chǎn)質(zhì)量環(huán)保級助焊劑，免清洗焊劑。嘉興助焊劑種類</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興助焊劑種類,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└鞒煞值淖饔弥罨瘎┑淖饔脵C(jī)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(hù)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(jī)鹽、酸類和胺類，以及它們的復(fù)配組合物。【正盟環(huán)?！恐竸└鞒煞值淖饔弥畾錃狻o機(jī)鹽氫氣和無機(jī)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(yīng)，如：氣體助焊劑中的氫氣，在焊接之后水是其獨(dú)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(zhuǎn)化為水。 MxOy＋yH 2 ＝xM＋yH 2 O 同時(shí)，氫還為金屬表面提供保護(hù)氣體，防止金屬表面在焊接完成之前再氧化。天津鋁錫助焊劑廠家供應(yīng)國標(biāo)助焊劑***安全焊接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興助焊劑種類,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520275449218/8342179.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！侩娮庸I(yè)助焊劑之如何從技術(shù)性能指標(biāo)的角度選擇助焊劑？(一) 助焊劑是電子工業(yè)中相當(dāng)重要的輔助材料之一，它在電子裝配工藝中影響電子產(chǎn)品質(zhì)量與可靠性。隨著現(xiàn)代信息電子工業(yè)的迅猛發(fā)展，助焊劑的使用量大要求越來越高。如何能在眾多的助焊劑中挑選一款適合自己所需要的產(chǎn)品，滿足波峰焊工藝使用，從技術(shù)性能指標(biāo)的角度可供初步參考篩選?到適合的產(chǎn)品，首先需要正確理解其各項(xiàng)技術(shù)性能指標(biāo)： PH值：助焊劑去除焊接金屬表面的金屬氧化物通過酸性反應(yīng)，酸性越強(qiáng)PH值越低，助焊劑的去氧化能力則越強(qiáng)，但同時(shí)帶來的過反應(yīng)的問題而把金屬基材腐蝕。故助焊劑酸性的大小應(yīng)與金屬材料敏感性相匹配，精密焊接不宜選擇酸性太強(qiáng)的助焊劑，或者焊后需要進(jìn)行清洗。</p><p style="text-indent:25px">【正盟環(huán)?！繕渲盗兄竸?②弱活性化松香（RMA）：這類助焊劑中添加的活性劑有乳酸、檸檬酸、硬脂酸等有機(jī)酸以及鹽基性有機(jī)化合物。添加這些弱活性劑后，能夠促進(jìn)潤濕的進(jìn)行，但母材上的殘留物仍然不具有腐蝕性，除了具有高可靠性的航空、航天產(chǎn)品或細(xì)間距的表面安裝產(chǎn)品需要清洗外，一般民用消費(fèi)類產(chǎn)品（如收錄機(jī)、電視機(jī)等）均不需設(shè)立清洗工序。在采用弱活性化松香時(shí)，對被焊件的可焊性也有嚴(yán)格的要求。 ③活性化松香（RA）及超活性化松香（RSA）：在活性化松香助焊劑中，添加的強(qiáng)活性劑有鹽酸苯胺、鹽酸聯(lián)氨等鹽基性有機(jī)化合物，這種助焊劑的活性是明顯提高了，但焊接后殘留物中氯離子的腐蝕變成不可忽視的問題，所以，在電子產(chǎn)品的裝聯(lián)中一般很少應(yīng)用。隨著活性劑的改進(jìn)，已開發(fā)了在焊接溫度下能將殘?jiān)纸鉃榉歉g性物質(zhì)的活性劑，這些大多數(shù)是有機(jī)化化合物的衍生物。杭州正盟環(huán)保工程有限公司有好的產(chǎn)品和專業(yè)的銷售和技術(shù)團(tuán)隊(duì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興助焊劑種類,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637336031689003906/1471739.jpg"></div><p style="text-indent:25px">【正盟環(huán)?！磕壳皣鴥?nèi)常用的可靠性評價(jià)試驗(yàn)主要為：表面絕緣阻抗測試，其次銅鏡腐蝕測試、離子濃度測試、軟釬焊性試驗(yàn)等。銅鏡腐蝕測試將欲測試的免清洗助焊劑滴在銅板(40.0mm×40.0 mm×0.2 mm)上，使其自然漫流，然后放人80℃的烘箱中烘2 h，取出冷卻后再放入潮濕箱(溫度40℃，濕度93%)中72 h查看銅板的顏色變化，如顏色變?yōu)樯罹G，則發(fā)生了腐蝕，如顏色無變化或有殘?jiān)?，則表明未發(fā)生腐蝕現(xiàn)象。不粘附性試驗(yàn) 將粉筆末撒到此種涂有免清洗助焊劑焊料的表面，然后擦去，不粘附；用紗布方法試驗(yàn)，紗布上看不到助焊劑殘留物，試板上也無明顯紗布痕跡。說明此種免清洗助焊劑的不粘附性性能優(yōu)良。軟釬焊性試驗(yàn) 在涂有免清洗助焊劑的清潔銅板(50 mm×50mm×1 mm)**放上HLSnPb50(D8 mm×4 mm)釬料，釬料上分別滴上兩滴助焊劑，然后置于275℃的恒溫箱內(nèi)1 min，取出測其漫流面積，據(jù)此可判斷助焊性能的強(qiáng)弱。正盟環(huán)保供應(yīng)環(huán)保級助焊劑，水基環(huán)保免清洗焊劑。珠海生產(chǎn)助焊劑</p><p style="text-indent:25px">助焊劑廠家直供，一手貨源！嘉興助焊劑種類</p><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(dòng)串焊機(jī)設(shè)計(jì)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(chǎn)品以混合醇和醇醚類作為增溶劑【正盟環(huán)保】【助焊劑】NCF-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(jīng)過特別設(shè)計(jì)，合適的固體含量及其內(nèi)部活性機(jī)理保證了良好的焊接效果，無殘?jiān)绊戨娦阅埽负髿埩粑飿O少，在無特殊需求條件下，可免除清洗工序，進(jìn)而節(jié)約制造商的生產(chǎn)費(fèi)用和工作時(shí)間。嘉興助焊劑種類</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司位于順風(fēng)路528號2號樓南樓東向3層。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(qiáng)企業(yè)重點(diǎn)競爭力，努力學(xué)習(xí)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。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/1113442.html</p></div></div></div></div></div><div id="8fluf4k" class="page-right twoColRt"><div id="ym29bmv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="o3sokyr" class="recomPic likePro"><a 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