廣州助焊劑正盟環(huán)保杭州正盟環(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)?！繉τ谑褂脧S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，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"><meta name="keywords" content="廣州助焊劑,助焊劑"><link rel="canonical" href="http://m.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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href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_huanbao/">環(huán)保</a>?<a href="http://m.cdcfah.com/cp/second-huanbao_xifuji/">吸附劑</a>?<a href="http://m.cdcfah.com/cp/third-xifuji_qitaxifuji/">其他吸附劑</a>?廣州助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</p><div id="ciccgcy" class="leftbox clearfix"><h1>廣州助焊劑正盟環(huán)保杭州正盟環(huán)保工程供應(yīng)</h1><div id="owmkaom" class="proBig"><div id="2kigckq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yoecayu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kiyukq0" 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,助焊劑</p><p><span>***更新：</span>2020-08-25 14:20:19</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="usyo2gw" 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="0uc2ciw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="uaq2gm0" class="box"><p><p style="text-indent:25px">【正盟環(huán)?！繉τ谑褂脧S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，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)商提供成份報告，一般他們還是會提供的；但是，異丙醇的價格大概是甲醇的3-4倍，如果和供應(yīng)商壓價的厲害，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，應(yīng)要求供應(yīng)商提供相關(guān)參數(shù)報告，并與樣品對照，如樣品確認(rèn)OK，后續(xù)交貨時應(yīng)按原有參數(shù)對照，出現(xiàn)異常時應(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指標(biāo)。三、助焊劑市場是良莠不齊，選擇時對供應(yīng)商的資質(zhì)應(yīng)該進(jìn)行確切了解，廣州助焊劑，如有必要可以去廠商去看廠，如果是不正規(guī)的焊劑廠商，廣州助焊劑，廣州助焊劑，是很怕這一套的。廠家現(xiàn)貨供應(yīng)助焊劑，焊接*****助焊劑。廣州助焊劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274921875/6047117.jpg"></div><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，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。廣州助焊劑買助焊劑，找正盟環(huán)保。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑,助焊劑" src="https://tyunfile.71360.com/UploadFile/zhengmenghuanbao1/637334520274472656/4640738.jpg"></div><p style="text-indent:25px">【正盟環(huán)保】助焊劑各成分的作用之有機(jī)鹵化物如羧酸鹵化物、有機(jī)胺的氫鹵酸鹽。張銀雪[4]以溴化水楊酸為活化劑，它在釬焊溫度時，可熱分解出溴化氫和水楊酸溶解基體金屬表面的氧化物；并且水楊酸的羥基、羧基在釬焊時可與JH樹脂反應(yīng)交聯(lián)成高分子樹脂膜，覆蓋在焊點(diǎn)表面。有機(jī)胺的氫鹵酸鹽如鹽酸苯胺，在焊接時，熔融的助焊劑與基板的銅進(jìn)行反應(yīng)，并產(chǎn)生CuC1 2 和銅絡(luò)合物。結(jié)果生成的銅化合物主要與熔融的焊料中的錫產(chǎn)生反應(yīng)生成了金屬銅，這些銅立即熔解到焊料之中，通過這些反應(yīng)和銅在焊料中的熔解，使焊料在銅板上流布。反應(yīng)如下[5]： Cu＋2C 6 H5NH2?HCl→CuCl2＋2 C6H5NH2＋H2 CuCl2＋2C6H5NH2?HCl→Cu[C6H5NH3]2Cl4</p><p style="text-indent:25px">【正盟環(huán)保】免清洗助焊劑 ③可焊性：擴(kuò)展率≥80% 可焊性與腐蝕性是相互矛盾的一對指標(biāo)，為了使助焊劑具有一定的消除氧化物的能力，并且在預(yù)熱和焊接的整個過程中均能保持一定程度的活性，就必須包含某種酸。在免清洗助焊劑中用得多的是非水溶性醋酸系列，配方中可能還有胺、氨和合成樹脂，不同的配方會影響其活性和可靠性。不同的企業(yè)有不同的要求和內(nèi)部控制指標(biāo)，但必須符合焊接質(zhì)量高和無腐蝕性的使用要求。助焊劑的活性通常是用pH值來衡量的，免清洗助焊劑的pH值應(yīng)控制在產(chǎn)品規(guī)定的技術(shù)條件范圍內(nèi)（各生產(chǎn)廠家的pH值略有不同）。 ④符合環(huán)保要求：無毒，無強(qiáng)烈刺激性氣味，基本不污染環(huán)境，操作安全。廠家供應(yīng)環(huán)保型助焊劑水基環(huán)保免清洗焊劑現(xiàn)貨供應(yīng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州助焊劑,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┑奈：?一般情況下，如果技術(shù)工人接觸到高濃度的環(huán)境的情況下，所蒸發(fā)出來的蒸汽吸入人體，就會出現(xiàn)頭難受、瞌睡的情況，一般情況下還會出現(xiàn)共濟(jì)失調(diào)以及刺激眼鼻喉等嚴(yán)重的癥狀。嚴(yán)重的話，患者還可能出現(xiàn)惡心、嘔吐以及其他狀況，有的會出現(xiàn)昏迷甚至死亡的事件發(fā)生。如果是長期接觸他的話，我們的皮膚會出現(xiàn)很多的不良狀況，例如：干燥以及破裂的情況。【正盟環(huán)?！砍Ｓ玫闹竸?yīng)該具備的一些條件 1、助焊劑的熔點(diǎn)應(yīng)該低于焊料的熔點(diǎn)。 2、助焊劑表面的張力、黏度以及密度應(yīng)該要小于焊料。 3、助焊劑的殘?jiān)鼞?yīng)該及時的清理掉。 4、助焊劑不應(yīng)該產(chǎn)生對人體有害的以及有毒的氣體和臭味。不然的話，不僅對人們的身體造成危害，還對環(huán)境和大氣造成一定程度的污染。廠家生產(chǎn)專為針對太陽能光伏行業(yè)開發(fā)的一款環(huán)保型免清洗助焊劑，可免除清洗工序。廣州助焊劑</p><p style="text-indent:25px">環(huán)保級助焊劑，杭州正盟環(huán)保批發(fā)生產(chǎn)。廣州助焊劑</p><p style="text-indent:25px">【正盟環(huán)保】電子工業(yè)助焊劑之如何從技術(shù)性能指標(biāo)的角度選擇助焊劑？(三) 銅鏡腐蝕性：助焊劑的腐蝕性大小是對酸性強(qiáng)弱對基材影響的進(jìn)一步驗(yàn)證，衡量腐蝕性大小一般是在使用相當(dāng)普遍的基材銅上做銅鏡腐蝕試驗(yàn)。這項(xiàng)指標(biāo)也是需要在腐蝕性和可焊性之間做權(quán)衡。表面絕緣電阻：表面絕緣電阻的反應(yīng)的是助焊劑焊后產(chǎn)品可靠性，按照不同的測試標(biāo)準(zhǔn)對表面絕緣電阻值的要求也不一樣，按照GBT9491-2002標(biāo)準(zhǔn)SIR大于1011Ω，而按照IPC J-STD-004標(biāo)準(zhǔn)，SIR大于108Ω，因測試方法不同，兩者的對比并無意義。但可以確定的是SIR值是越大對焊后產(chǎn)品越有利。電化學(xué)遷移：電化學(xué)遷移也是對表面絕緣電阻值的進(jìn)一步要求，在更極端的環(huán)境下考察助焊劑的表面絕緣電阻。當(dāng)然該項(xiàng)指標(biāo)亦越大對焊后產(chǎn)品越有利。除上述詳細(xì)的技術(shù)參數(shù)的考慮，其次還需結(jié)合所需要裝配的電子產(chǎn)品的類別或技術(shù)要求，選擇合適的助焊劑產(chǎn)品；需要對所選助焊劑，進(jìn)行試驗(yàn)驗(yàn)證和有效評估。廣州助焊劑</p><p style="text-indent:25px">杭州正盟環(huán)保工程有限公司創(chuàng)辦于2011-03-18，是一家生產(chǎn)型的公司。經(jīng)過多年不斷的歷練探索和創(chuàng)新發(fā)展，正盟環(huán)保是一家有限責(zé)任公司（自然）企業(yè)，一直“以人為本，服務(wù)于社會”的經(jīng)營理念;“質(zhì)量高速，誠守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。公司目前擁有優(yōu)異員工11~50人人，具有助焊劑，錫絲，錫條，錫膏等多項(xiàng)業(yè)務(wù)。正盟環(huán)保自成立以來，一直堅(jiān)持走正規(guī)化、專業(yè)化路線，得到了廣大客戶及社會各界的普遍認(rèn)可與大力支持。</p></p><br /><p>文章來源地址: 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