南京產(chǎn)品環(huán)境可靠性測試一次多少錢歡迎咨詢上海中證檢測技術供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="在當今競爭激烈的市場環(huán)境和全球化的背景下，產(chǎn)品要迅速并且成功地占領國內外市場，就必須提高產(chǎn)品的環(huán)境適應性和可靠性。目前，我國很多產(chǎn)品設計從單純追求技術指標轉向提高產(chǎn)品的綜合效能。在產(chǎn)品引進過程中，由于來源不同，南京產(chǎn)品環(huán)境可靠性測試一次多少"><meta name="keywords" content="南京產(chǎn)品環(huán)境可靠性測試一次多少錢,產(chǎn)品環(huán)境可靠性測試"><link rel="canonical" href="http://www.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" /> 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href="http://www.cdcfah.com/cp/third-swfw_jiancefuwu/">檢測服務</a>?南京產(chǎn)品環(huán)境可靠性測試一次多少錢歡迎咨詢上海中證檢測技術供應</p><div id="wzgplhy" class="leftbox clearfix"><h1>南京產(chǎn)品環(huán)境可靠性測試一次多少錢歡迎咨詢上海中證檢測技術供應</h1><div id="3duwofm" class="proBig"><div id="3fhjv73" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Shatcc/637394297123207716/2805429.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dbs3kh8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Shatcc/637394297123207716/2805429.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ygiuvwy" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>南京產(chǎn)品環(huán)境可靠性測試一次多少錢,產(chǎn)品環(huán)境可靠性測試</p><p><span>***更新：</span>2021-01-23 05:13:48</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="2rd3k7f" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海中證檢測技術有限公司</a></p><p><span>聯(lián)系人：</span>賴朝忠</p><p><span>郵箱: </span>13402061820@163.com</p><p><span>電話: </span>13402061820</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.atc-tech.com</p><p><span>手機: </span>021-58692399</p><p><span>地址: </span>民風路351號1幢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="g3gac2t" class="page-proshow02"><p class="title">詳細說明</p><div id="d4u8vmn" class="box"><p><p style="text-indent:25px">在當今競爭激烈的市場環(huán)境和全球化的背景下，產(chǎn)品要迅速并且成功地占領國內外市場，就必須提高產(chǎn)品的環(huán)境適應性和可靠性。目前，我國很多產(chǎn)品設計從單純追求技術指標轉向提高產(chǎn)品的綜合效能。在產(chǎn)品引進過程中，由于來源不同，南京產(chǎn)品環(huán)境可靠性測試一次多少錢，在同一場所會出現(xiàn)不同的環(huán)境試驗標準體系相互交叉的情況；隨著可靠性工作的逐步深入，該指標已納入研制合同。環(huán)境工程和可靠性工程相互交叉，使產(chǎn)品在研制和生產(chǎn)中，試驗項目和工作量成倍地增加，這給研制和生產(chǎn)部門帶來了許多重復性工作，南京產(chǎn)品環(huán)境可靠性測試一次多少錢，周期和成本難以保證，這就要求對相同的試驗項目進行合并和簡化。也就要弄清環(huán)境工程和可靠性工程的概念，充分利用已進行試驗的結果，南京產(chǎn)品環(huán)境可靠性測試一次多少錢，簡化試驗工作量，縮短研制周期。通過環(huán)境試驗可以分析和驗證各種環(huán)境因素對產(chǎn)品效能的影響程度及作用機理。南京產(chǎn)品環(huán)境可靠性測試一次多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京產(chǎn)品環(huán)境可靠性測試一次多少錢,產(chǎn)品環(huán)境可靠性測試" src="https://tyunfile.71360.com/UploadFile/Shatcc/637394297123207716/2805429.png"></div><p style="text-indent:25px">如果為了縮短試驗時間可在不改變失效機理的條件下用加大應力的方法進行試驗，這就是加速壽命試驗。通過壽命試驗可以對產(chǎn)品的可靠性水平進行評價，并通過質量反饋來提高新產(chǎn)品可靠性水平。壽命試驗目的：考核產(chǎn)品在規(guī)定的條件下，在全過程工作時間內的質量和可靠性。為了使試驗結果有較好展示性，參試的樣品要有足夠的數(shù)量。試驗條件：微電路的壽命試驗分穩(wěn)態(tài)壽命試驗、間歇壽命試驗和模擬壽命試驗。模擬壽命試驗是一種模擬徽電路應用環(huán)境的組合試驗。它的組合應力有機械、濕度和低氣壓四應力試驗：機械、溫度、濕度和電四應力試驗等。南京產(chǎn)品環(huán)境可靠性測試一次多少錢振動試驗主要有正弦振動和隨機振動。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京產(chǎn)品環(huán)境可靠性測試一次多少錢,產(chǎn)品環(huán)境可靠性測試" src="https://tyunfile.71360.com/UploadFile/Shatcc/637394297111225852/2942041.png"></div><p style="text-indent:25px">可靠性試驗目的：在研制階段用以暴露試制產(chǎn)品各方面的缺陷，評價產(chǎn)品可靠性達到預定指標的情況；生產(chǎn)階段為監(jiān)控生產(chǎn)過程提供信息；對定型產(chǎn)品進行可靠性鑒定或驗收；暴露和分析產(chǎn)品在不同環(huán)境和應力條件下的失效規(guī)律及有關的失效模式和失效機理；為改進產(chǎn)品可靠性，制定和改進可靠性試驗方案，為用戶選用產(chǎn)品提供依據(jù)。穩(wěn)定性烘培，即高溫存儲試驗試驗目的：考核在不施加電應力的情況下，高溫存儲對產(chǎn)品的影響。有嚴重缺陷的產(chǎn)品處于非平衡態(tài)，是一種不穩(wěn)定態(tài)，由非平衡態(tài)向平衡態(tài)的過渡過程既是誘發(fā)有嚴重缺陷產(chǎn)品失效的過程，也是促使產(chǎn)品從非穩(wěn)定態(tài)向穩(wěn)定態(tài)的過渡過程。這種過渡一般情況下是物理化學變化，其速率遵循阿倫尼烏斯公式，隨溫度成指數(shù)增加．高溫應力的目的是為了縮短這種變化的時間．所以該實驗又可以視為一項穩(wěn)定產(chǎn)品性能的工藝。</p><p style="text-indent:25px">穩(wěn)定性烘培，即高溫存儲試驗，試驗目的：考核在不施加電應力的情況下，高溫存儲對產(chǎn)品的影響。有嚴重缺陷的產(chǎn)品處于非平衡態(tài)，是一種不穩(wěn)定態(tài)，由非平衡態(tài)向平衡態(tài)的過渡過程既是誘發(fā)有嚴重缺陷產(chǎn)品失效的過程，也是促使產(chǎn)品從非穩(wěn)定態(tài)向穩(wěn)定態(tài)的過渡過程。這種過渡一般情況下是物理化學變化，其速率遵循阿倫尼烏斯公式，隨溫度成指數(shù)增加．高溫應力的目的是為了縮短這種變化的時間。所以該實驗又可以視為一項穩(wěn)定產(chǎn)品性能的工藝。試驗條件：一般選定一恒定的溫度應力和保持時間。微電路溫度應力范圍為75℃至400℃，試驗時間為24h以上。試驗前后被試樣品要在標準試驗環(huán)境中，既溫度為25土10℃、氣壓為86kPa~100kPa的環(huán)境中放置一定時間。多數(shù)的情況下，要求試驗后在規(guī)定的時間內完成終點測試。恒定溫濕度試驗以加速方式評價試驗樣品耐濕熱劣化的效應。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京產(chǎn)品環(huán)境可靠性測試一次多少錢,產(chǎn)品環(huán)境可靠性測試" src="https://tyunfile.71360.com/UploadFile/Shatcc/637394297125766191/9326437.png"></div><p style="text-indent:25px">耐濕試驗試驗目的：以施加加速應力的方法評定微電路在潮濕和炎熱條件下**變的能力，是針對典型的熱帶氣候環(huán)境設計的。微電路在潮濕和炎熱條件下衰變的主要機理是由化學過程產(chǎn)生的腐蝕和由水汽的浸入、凝露、結冰引起微裂縫增大的物理過程。試驗也考核在潮濕和炎熱條件下構成微電路材料發(fā)生或加劇電解的可能性，電解會使絕緣材料電阻率發(fā)生變化，使抗介質擊穿的能力變弱。試驗條件：潮熱試驗有兩種，即交變潮熱試驗和恒定潮熱試驗。交受潮熱試驗要求被試樣品在相對濕度為90％～100％的范圍內，用一定的時間(一般2．5h)使溫度從25℃上升到65℃，并保持3h以上；然后再在相對濕度為80％一100％的范圍內，用一定的時間(—般2.5 h)使溫度從6s℃下降到25℃，再進行一次這樣的循環(huán)后再在任意濕度的情況下將溫度下降到一10 c，并保持3h以上‘再恢復到溫度為25℃，相對濕度等于或大于80％的狀態(tài)。這就完成了一次文變潮熱的大循環(huán)，大約需要24h。鹽霧試驗考核產(chǎn)品、材料及其防護層抗鹽霧腐蝕的能力。南京產(chǎn)品環(huán)境可靠性測試一次多少錢</p><p style="text-indent:25px">氣候環(huán)境試驗是評價產(chǎn)品可靠性的重要試驗方法之一。南京產(chǎn)品環(huán)境可靠性測試一次多少錢</p><p style="text-indent:25px">氣候類環(huán)境測試：溫濕度測試(Temp./Humidity - Damp Heat Test)通常將干燥高溫試驗(Dry heat)、低溫試驗(Cold)、溫濕度穩(wěn)態(tài)試驗(Constant Temp./Humidity)和溫濕度循環(huán)試驗(Humidity Cycles)各別分開進行測試驗證。對塑性材料、PCB 、PCBA多孔性材料或成品等而言，各種不同材料對溫度與濕氣有不同形態(tài)之物理反應，溫度所產(chǎn)生效應多為塑性變形或產(chǎn)品過溫(Over Heat)或低溫啟動不良(Cold start)等等，多孔性材料在濕度環(huán)境下會應毛細孔效應(Breathing Effect)而出現(xiàn)表面濕氣吸附，滲入、凝結等情形，在低濕環(huán)境中會因靜電荷累積效應誘發(fā)產(chǎn)品出現(xiàn)失效。除了戶外型品必須執(zhí)行結露試驗(Condensation test)外，通常對室內使用產(chǎn)品在濕度試驗過程中應避免水氣凝結(Condensation)情形出現(xiàn)，因水氣凝結易造成產(chǎn)品線路出現(xiàn)短路現(xiàn)象而造成失效。南京產(chǎn)品環(huán)境可靠性測試一次多少錢</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2970546.html</p></div></div></div></div></div><div id="82hbnip" class="page-right twoColRt"><div id="iio8fwn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="22zbi8j" 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="enugneg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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