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class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">合肥榮方自動(dòng)化科技有限公司</a></p><p><span>聯(lián)系人：</span>黃經(jīng)理</p><p><span>郵箱: </span>15221202014@163.com</p><p><span>電話: </span>15056078181</p><p><span>傳真: </span>0551_</p><p><span>網(wǎng)址: </span>http://hcd8181.shop.88360.com</p><p><span>手機(jī): </span>0551-62359165</p><p><span>地址: </span>合肥市蜀山區(qū)望江西路218號(hào)港匯廣場(chǎng)寫(xiě)字樓B座2411-A</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="oskc4p3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8889xz2" class="box"><p><p style="text-indent:25px">在PCB電路板和元器件生產(chǎn)制造過(guò)程中，提高貼片加工的生產(chǎn)效率和良品率尤為重要，為企業(yè)降低生產(chǎn)成品，可以提高企業(yè)的經(jīng)濟(jì)效益。如何提高生產(chǎn)效率和良品率，需要我們?cè)谕度氪笠?guī)模產(chǎn)量之前，進(jìn)行smt貼片加工可焊性測(cè)試，這時(shí)我們需要對(duì)測(cè)試pcb原型的樣品進(jìn)行老化處理。因?yàn)?，剛剛生產(chǎn)出來(lái)的元器件或PCB電路板，其焊接面的可焊性一般是不存在問(wèn)題的，但是存放一段時(shí)間后，就會(huì)因?yàn)檠趸霈F(xiàn)劣化，測(cè)試必須考慮正常儲(chǔ)存條件對(duì)可焊性的影響。恒溫恒濕試驗(yàn)箱發(fā)現(xiàn)一項(xiàng)技術(shù)是否合適取決于焊端鍍層的金屬性能和預(yù)期引起產(chǎn)品質(zhì)量下降的原因。在pcb電子制造行業(yè)，鄭州霍爾傳感器測(cè)試，元器件和PCB往往要求有一定的儲(chǔ)存保質(zhì)期，通常為6-12個(gè)月。因此，要等待這段周期后再進(jìn)行測(cè)量顯然不切實(shí)際，因而必須采用加速存放老化的方法，常用的試驗(yàn)設(shè)備為高壓加速老化試驗(yàn)箱。通過(guò)對(duì)加速老化進(jìn)行了專(zhuān)題研究，包括從1h蒸汽老化到一個(gè)月或數(shù)個(gè)月的濕熱條件測(cè)試技術(shù)。對(duì)錫合金而言氧化是主要原因，鄭州霍爾傳感器測(cè)試，而對(duì)貴金屬鍍層而言則擴(kuò)散是主要原因。電子制造業(yè)界通常的做法是，對(duì)錫合金采用8~24h的蒸汽老化；對(duì)主要由擴(kuò)散而引起品質(zhì)下降的鍍層，鄭州霍爾傳感器測(cè)試，采用115℃、16h干熱老化；對(duì)品質(zhì)下降機(jī)理不明的鍍層，則采用蒸汽老化。測(cè)試治具使用時(shí)，需要注意哪些問(wèn)題呢？鄭州霍爾傳感器測(cè)試</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州霍爾傳感器測(cè)試,測(cè)試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919670761464/1957010.png"></div><p style="text-indent:25px">單就PCB來(lái)說(shuō)，4層不如6層的PCB具備更好的電氣設(shè)計(jì)可能性。一般來(lái)說(shuō)，6層的PCB是要好些。但是現(xiàn)在的硬件廠家就看到一些購(gòu)買(mǎi)的消費(fèi)者喜歡看電容和PCB層數(shù)，供電路數(shù)這些東西。所以，非常惡劣的用一些概念領(lǐng)導(dǎo)市場(chǎng)的消費(fèi)。比如，技嘉的全固態(tài)電容概念。南橋使用固態(tài)電容實(shí)際上不是明智的選擇，甚至?xí)懈弊饔谩Ｔ陲@卡市場(chǎng)，像同德，柏能這樣的廠家是具有較好的設(shè)計(jì)能力的，他們用別人廠家1/2零件和4層的PCB，照樣能做到別人家不能達(dá)到的性能。所以，我只能告訴你，現(xiàn)在的市場(chǎng)上，用6層PCB版設(shè)計(jì)往往有2個(gè)可能：1.此顯卡屬于較好的顯卡，價(jià)格相對(duì)高，OC潛力巨大。2.此廠家設(shè)計(jì)能力極其一般，只能用6層PCB才能保證顯卡的正常使用。一般來(lái)說(shuō)，是這樣2種。當(dāng)然還有為了推廣自己產(chǎn)品而在特定型號(hào)，批次使用極好做工和原料的（用來(lái)作形象的產(chǎn)品），但這樣的狀況是可遇不可求。PCB用料優(yōu)劣判斷方法：PCB用料鍍銀>鍍銅，顯卡PCB上焊點(diǎn)飽滿(mǎn)與否，有沒(méi)有像電壓測(cè)試點(diǎn)或加壓超頻開(kāi)關(guān)這樣的設(shè)計(jì)等。焊點(diǎn)飽滿(mǎn)，電壓測(cè)試點(diǎn)應(yīng)有盡有通過(guò)PCB上焊點(diǎn)的飽滿(mǎn)程度，我們也可以看出該顯卡PCB制造工藝的水準(zhǔn)，而這款顯卡上的電壓測(cè)試點(diǎn)也讓玩家可以很輕松的去測(cè)試各元器件的電壓值。鄭州霍爾傳感器測(cè)試測(cè)試設(shè)備可用于哪些方面？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州霍爾傳感器測(cè)試,測(cè)試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919485790693/2914709.png"></div><p style="text-indent:25px">則可能會(huì)產(chǎn)生Hold住本批待測(cè)品的現(xiàn)象產(chǎn)生。3.預(yù)燒爐（Burn-InOven）（測(cè)試內(nèi)存IC才有此程序）在測(cè)試內(nèi)存性產(chǎn)品時(shí)，在FT1之后，待測(cè)品都會(huì)上預(yù)燒爐里去BurnIn，其目的在于提供待測(cè)品一個(gè)高溫、高電壓、高電流的環(huán)境，使生命周期較短的待測(cè)品在BurnIn的過(guò)程中提早的顯現(xiàn)出來(lái)，在BurnIn后必需在96個(gè)小時(shí)內(nèi)待測(cè)品BurnIn物理特性未消退之前完成后續(xù)測(cè)試機(jī)臺(tái)測(cè)試的流程，否則就要將待測(cè)品種回預(yù)燒爐去重新BurnIn。在此會(huì)用到的配件包括Burn-InBoard及BurnInSocket..等。4.電性抽測(cè)在每一道機(jī)臺(tái)測(cè)試后，都會(huì)有一個(gè)電性抽測(cè)的動(dòng)作（俗稱(chēng)QC或Q貨），此作業(yè)的目的在將此完成測(cè)試機(jī)臺(tái)測(cè)試的待測(cè)品抽出一定數(shù)量，重回測(cè)試機(jī)臺(tái)在測(cè)試程序、測(cè)試機(jī)臺(tái)、測(cè)試溫度都不變下，看其測(cè)試結(jié)果是否與之前上測(cè)試機(jī)臺(tái)的測(cè)試結(jié)果相一致，若不一致，則有可能是測(cè)試機(jī)臺(tái)故障、測(cè)試程序有問(wèn)題、測(cè)試配件損壞、測(cè)試過(guò)程有瑕疵..等原因，原因小者，則需回測(cè)試機(jī)臺(tái)重測(cè)，原因大者，將能將此批待測(cè)品Hold住，等待工程師、生管人員與客戶(hù)協(xié)調(diào)后再作決策。5.卷標(biāo)掃描（MarkScan）利用機(jī)械視覺(jué)設(shè)備對(duì)待測(cè)品的產(chǎn)品上的產(chǎn)品Mark作檢測(cè)，內(nèi)容包括Mark的位置歪斜度及內(nèi)容的清晰度..等。</p><p style="text-indent:25px">需要進(jìn)行PCBA測(cè)試，確保出貨給客戶(hù)的PCBA板的性能參數(shù)符合設(shè)計(jì)者的要求。PCBA測(cè)試的目的是確保PCBA板的品質(zhì)能符合客戶(hù)要求，避免不良品。二、PCBA測(cè)試的意義1、有助于提高內(nèi)部的工藝制程PCBA測(cè)試處于生產(chǎn)環(huán)節(jié)的后端，能夠及時(shí)發(fā)現(xiàn)PCBA的缺陷，方便對(duì)前端工序的SMT貼片加工和DIP插件加工進(jìn)行調(diào)整，起到優(yōu)化內(nèi)部的工藝制程的作用。2、提高客戶(hù)的滿(mǎn)意度PCBA測(cè)試是嚴(yán)控出貨品質(zhì)的重要手段。通過(guò)PCBA測(cè)試環(huán)節(jié)，可將測(cè)試有問(wèn)題的PCBA板進(jìn)行返修，測(cè)試沒(méi)有問(wèn)題的PCBA板出貨給客戶(hù)，可以極大的提高產(chǎn)品的品質(zhì)，滿(mǎn)足客戶(hù)的需求，來(lái)獲得客戶(hù)的信賴(lài)。PCBA測(cè)試作為一個(gè)重要的環(huán)節(jié)，對(duì)優(yōu)化內(nèi)部制程以及提高客戶(hù)的滿(mǎn)意度都有著重要的意義。瑞福自動(dòng)化主要生產(chǎn)離線FCT，F(xiàn)CT測(cè)試儀，ICT測(cè)試儀，F(xiàn)CT功能測(cè)試系統(tǒng)，ATE電源測(cè)試系統(tǒng)，測(cè)試系統(tǒng)主要針對(duì)電路板上每一個(gè)回路的功能并檢查其功能是否合乎規(guī)格以及開(kāi)短路，精確指示出不良的零件及不良原因。什么是測(cè)試設(shè)備，測(cè)試設(shè)備介紹？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州霍爾傳感器測(cè)試,測(cè)試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919410126713/6209543.png"></div><p style="text-indent:25px">測(cè)試級(jí)的“宏大”的端點(diǎn)；涉及整個(gè)應(yīng)用系統(tǒng)環(huán)境在一個(gè)現(xiàn)實(shí)世界使用時(shí)的模擬情形的所有測(cè)試。例如與數(shù)據(jù)庫(kù)對(duì)話，用網(wǎng)絡(luò)通訊，或與外部硬件、應(yīng)用系統(tǒng)或適當(dāng)?shù)南到y(tǒng)對(duì)話。健全測(cè)試：典型地是指一個(gè)初始化的測(cè)試工作，以決定一個(gè)新的軟件版本測(cè)試是否足以執(zhí)行下一步大的測(cè)試努力。例如，如果一個(gè)新版軟件每5分鐘與系統(tǒng)bug，使系統(tǒng)陷于泥潭，說(shuō)明該軟件不夠“健全”，目前不具備進(jìn)一步測(cè)試的條件。衰竭測(cè)試：軟件或環(huán)境的修復(fù)或更正后的“再測(cè)試”。可能很難確定需要多少遍再次測(cè)試。尤其在接近開(kāi)發(fā)周期結(jié)束時(shí)。自動(dòng)測(cè)試工具對(duì)這類(lèi)測(cè)試尤其有用。接受測(cè)試：基于客戶(hù)或用戶(hù)的規(guī)格書(shū)的測(cè)試，或基于用戶(hù)一段時(shí)間的使用后，看軟件是否滿(mǎn)足客戶(hù)要求。負(fù)載測(cè)試：測(cè)試一個(gè)應(yīng)用在重負(fù)荷下的表現(xiàn)，例如測(cè)試一個(gè)Web站點(diǎn)在大量的負(fù)荷下，何時(shí)系統(tǒng)的響應(yīng)會(huì)退化或失敗。強(qiáng)迫測(cè)試：在交替進(jìn)行負(fù)荷和性能測(cè)試時(shí)常用的術(shù)語(yǔ)。也用于描述象在異乎尋常的重載下的系統(tǒng)功能測(cè)試之類(lèi)的測(cè)試，如某個(gè)動(dòng)作或輸入大量的重復(fù)，大量數(shù)據(jù)的輸入，對(duì)一個(gè)數(shù)據(jù)庫(kù)系統(tǒng)大量的復(fù)雜查詢(xún)等。性能測(cè)試：在交替進(jìn)行負(fù)荷和強(qiáng)迫測(cè)試時(shí)常用的術(shù)語(yǔ)。理想的“性能測(cè)試”。測(cè)試設(shè)備故障維修技巧有哪些，有人知道嗎？ICT測(cè)試系統(tǒng)</p><p style="text-indent:25px">有人知道測(cè)試設(shè)備嗎？?jī)r(jià)格多少？鄭州霍爾傳感器測(cè)試</p><p style="text-indent:25px">例如焊接夾具、檢驗(yàn)夾具、裝配夾具、機(jī)床夾具等。其中機(jī)床夾具較為常見(jiàn)，常簡(jiǎn)稱(chēng)為夾具。在機(jī)床上加工工件時(shí)，為使工件的表面能達(dá)到圖紙規(guī)定的尺寸、幾何形狀以及與其他表面的相互位置精度等技術(shù)要求，加工前必須將工件裝好(定位)、夾牢(夾緊)。夾具通常由定位元件(確定工件在夾具中的正確位置)、夾緊裝置、對(duì)刀引導(dǎo)元件(確定刀具與工件的相對(duì)位置或?qū)б毒叻较?、分度裝置(使工件在一次安裝中能完成數(shù)個(gè)工位的加工，有回轉(zhuǎn)分度裝置和直線移動(dòng)分度裝置兩類(lèi))、連接元件以及夾具體(夾具底座)等組成。夾具種類(lèi)按使用特點(diǎn)可分為：夾具的種類(lèi)，視工件的加工特性而有所不同，以業(yè)界現(xiàn)有測(cè)試治具為例，在加工機(jī)加工范圍內(nèi)同時(shí)夾持多個(gè)工件，且將不同類(lèi)型之工件的夾持與固定，設(shè)計(jì)在同一組治具上，在生產(chǎn)作業(yè)換線時(shí)只要將部份零件更換即可，例如：壓板、定位銷(xiāo)、基準(zhǔn)塊、油壓缸等小零件，以達(dá)到快速換線之彈性功能。夾具治具是工件在加工過(guò)程當(dāng)中，非常方便又快速的一項(xiàng)輔助工具。因此，設(shè)計(jì)合適的夾具治具對(duì)于小量多樣化的加工方式更是重要的課題。①通用測(cè)試夾具。如機(jī)用虎鉗、卡盤(pán)、吸盤(pán)、分度頭和回轉(zhuǎn)工作臺(tái)等，有很大的通用性，能較好地適應(yīng)加工工序和加工對(duì)象的變換。鄭州霍爾傳感器測(cè)試</p><p style="text-indent:25px">合肥榮方自動(dòng)化科技有限公司致力于儀器儀表，是一家服務(wù)型公司。榮方自動(dòng)化科技致力于為客戶(hù)提供良好的自動(dòng)化設(shè)備，視覺(jué)檢測(cè)設(shè)備，集成電路設(shè)計(jì)測(cè)試，可視化平臺(tái)軟件，一切以用戶(hù)需求為中心，深受廣大客戶(hù)的歡迎。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造儀器儀表良好品牌。榮方自動(dòng)化科技立足于全國(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://m.cdcfah.com/cp/3049141.html</p></div></div></div></div></div><div id="ijbtnum" class="page-right twoColRt"><div id="z3gdizb" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="smelabi" class="recomPic likePro"><a href="http://m.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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="cgifugd" 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