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src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919485790693/2914709.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mqsz2cj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919485790693/2914709.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vumjl3r" 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>安徽省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南通音箱測試,測試</p><p><span>***更新：</span>2021-02-04 01:17:43</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="7eoqhws" 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號港匯廣場寫字樓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="x232ujw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="88tvxpw" class="box"><p><p style="text-indent:25px">前言提高質(zhì)量，南通音箱測試，增加客戶的信賴。適合產(chǎn)品多變化特性的外型。減少R&D在硬件上限制考量。減少PCB板加工制程，增加加工精度。分割方式一沖壓Punch利用刀模切割PCB生產(chǎn)速度快，切割壓力大需要預(yù)先制作刀模，耗費(fèi)時間較長只能針對單一機(jī)種，彈性度小二V切V-Cut利用刀輪切割PCB切割壓力小，價格低只能切割直線對于外型毛邊較多，精度較差三切割Routing利用高速主軸切割PCB切割壓力小，精度高，板邊平滑可切任何形狀之PCB電路板分割應(yīng)力治具篇治具制作要領(lǐng)：治具總高度為37mm(到PCB底面)。治具制作須配合機(jī)臺定位梢尺寸(使用本公司標(biāo)準(zhǔn)治具底板除外)。下集塵治具周圍若能密封；則集塵效果更好。治具制作以切割后每一小片PCB；在治具上不會左右搖動為標(biāo)準(zhǔn)。使用上集塵時，治具制作要考慮切割時PCB會不會被往上吸。使用下集塵時，治具制作要考慮集塵效果。萬用測試治具一萬用測試治具標(biāo)準(zhǔn)型制作方法：用標(biāo)準(zhǔn)底板及PIN支撐PCB的孔及邊做固定。使用場合：適用較大PCB。(Notebook及手機(jī)等)優(yōu)點(diǎn)：制作簡易、調(diào)易，南通音箱測試、當(dāng)機(jī)種淘汰時治具可重復(fù)使用，南通音箱測試。缺點(diǎn)：小板及多連片板較不好制作。二萬用測試治具**型制作方法：同標(biāo)準(zhǔn)型。測試設(shè)備給我們生活中帶來了哪些便利？南通音箱測試</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通音箱測試,測試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919485790693/2914709.png"></div><p style="text-indent:25px">因?yàn)橐话愕碾娮恿慵?jīng)過波峰焊或是SMT吃錫之后，在其焊錫的表面通常都會形成一層錫膏助焊劑的殘留薄膜，這層薄膜的阻抗非常高，常常會造成探針的接觸不良，所以當(dāng)時經(jīng)?？梢姰a(chǎn)線的測試作業(yè)員，經(jīng)常拿著空氣噴槍拼命的吹，或是拿酒精擦拭這些需要測試的地方。其實(shí)經(jīng)過波峰焊的測試點(diǎn)也會有探針接觸不良的問題。后來SMT盛行之后，測試誤判的情形就得到了很大的改善，測試點(diǎn)的應(yīng)用也被較大地賦予重任，因?yàn)镾MT的零件通常很脆弱，無法承受測試探針的直接接觸壓力，使用測試點(diǎn)就可以不用讓探針直接接觸到零件及其焊腳，不但保護(hù)零件不受傷害，也間接較大地提升測試的可靠度，因?yàn)檎`判的情形變少了。不過隨著科技的演進(jìn)，電路板的尺寸也越來越小，小小地電路板上面光要擠下這么多的電子零件都已經(jīng)有些吃力了，所以測試點(diǎn)占用電路板空間的問題，經(jīng)常在設(shè)計(jì)端與制造端之間拔河，不過這個議題等以后有機(jī)會再來談。測試點(diǎn)的外觀通常是圓形，因?yàn)樘结樢彩菆A形，比較好生產(chǎn)，也比較容易讓相鄰探針靠得近一點(diǎn)，這樣才可以增加針床的植針密度。1.使用針床來做電路測試會有一些機(jī)構(gòu)上的先天上限制，比如說：探針的小直徑有一定極限，太小直徑的針容易折斷毀損。2.針間距離也有一定限制。南通音箱測試ICT測試治具是用來做什么的，具體點(diǎn)？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通音箱測試,測試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919452890279/5264061.png"></div><p style="text-indent:25px">對學(xué)電子的人來說，在電路板上設(shè)置測試點(diǎn)(testpoint)是在自然不過的事了，可是對學(xué)機(jī)械的人來說，測試點(diǎn)是什么?基本上設(shè)置測試點(diǎn)的目的是為了測試電路板上的零組件有沒有符合規(guī)格以及焊性，比如說想檢查一顆電路板上的電阻有沒有問題，簡單的方法就是拿萬用電表量測其兩頭就可以知道了。可是在大批量生產(chǎn)的工廠里沒有辦法讓你用電表慢慢去量測每一片板子上的每一顆電阻、電容、電感、甚至是IC的電路是否正確，所以就有了所謂的ICT(In-Circuit-Test)自動化測試機(jī)臺的出現(xiàn)，它使用多根探針(一般稱之為針床測試治具)同時接觸板子上所有需要被量測的零件線路，然后經(jīng)由程控以序列為主，并列為輔的方式循序量測這些電子零件的特性，通常這樣測試治具的所有零件只需要1~2分鐘左右的時間可以完成，視電路板上的零件多寡而定，零件越多時間越長。但是如果讓這些探針直接接觸到板子上面的電子零件或是其焊腳，很有可能會壓毀一些電子零件，反而適得其反，所以聰明的工程師就發(fā)明了「測試點(diǎn)」，在零件的兩端額外引出一對圓形的小點(diǎn)，上面沒有防焊(mask)，可以讓測試治具用的探針接觸到這些小點(diǎn)，而不用直接接觸到那些被量測的電子零件。早期在電路板上面還都是傳統(tǒng)插件(DIP)的年代。</p><p style="text-indent:25px">在Web應(yīng)用技術(shù)中，數(shù)據(jù)庫起著重要的作用，為Web應(yīng)用系統(tǒng)的管理、運(yùn)行、查詢和實(shí)現(xiàn)用戶對數(shù)據(jù)存儲的請求等提供空間。數(shù)據(jù)庫測試是為了發(fā)現(xiàn)錯誤和缺陷而運(yùn)行數(shù)據(jù)庫的過程。數(shù)據(jù)庫測試是根據(jù)數(shù)據(jù)庫的需求規(guī)格說明書和源代碼的內(nèi)部結(jié)構(gòu)而精心設(shè)計(jì)一批測試用例(即輸入數(shù)據(jù)及其預(yù)期的輸出結(jié)果)，并利用這些測試用例去運(yùn)行數(shù)據(jù)庫，以發(fā)現(xiàn)數(shù)據(jù)庫錯誤和缺陷的過程。數(shù)據(jù)庫測試方法也分為白盒測試和黑盒測試兩種。白盒測試是已知數(shù)據(jù)庫的內(nèi)部結(jié)構(gòu)和工作過程，通過測試來檢驗(yàn)數(shù)據(jù)庫是否按照需求規(guī)格說明書的要求正常運(yùn)行。數(shù)據(jù)庫白盒測試需要注意以下幾個問題：(1)遍歷對模塊中所有路徑至少測試一次(2)遍歷所有的邏輯判斷“真”與“假”取值至少測試一次(3)在循環(huán)的邊界和運(yùn)行的邊界內(nèi)執(zhí)行循環(huán)體(4)測試內(nèi)部數(shù)據(jù)結(jié)構(gòu)的有效性數(shù)據(jù)庫黑盒測試是在已知數(shù)據(jù)庫所具有的功能的基礎(chǔ)上，通過測試來檢驗(yàn)每個功能是否都能正常運(yùn)行并達(dá)到預(yù)期結(jié)果。數(shù)據(jù)庫黑盒測試不**關(guān)注功能是否能正確地實(shí)現(xiàn)，還關(guān)注性能是否能達(dá)到客戶要求。數(shù)據(jù)庫黑盒測試需要注意以下幾個方面：(1)數(shù)據(jù)庫表結(jié)構(gòu)是否合理(2)數(shù)據(jù)結(jié)構(gòu)(如數(shù)據(jù)類型、長度)是否正確定義。什么是測試設(shè)備？你了解多少呢？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通音箱測試,測試" src="https://tyunfile.71360.com/UploadFile/bmhcd8181/637440919670761464/1957010.png"></div><p style="text-indent:25px">關(guān)鍵性元件需要在PCB線路板上預(yù)設(shè)測試點(diǎn)。用于焊接外貌組裝元件的焊盤不容許兼作檢測點(diǎn)，必須另外預(yù)設(shè)**的測試焊盤，以保證焊點(diǎn)檢測和生產(chǎn)調(diào)試的沒事了進(jìn)行。用于測試的焊盤盡可能的安排于PCB線路板的統(tǒng)一側(cè)面上，即便于檢測，又利于減低檢測所花的費(fèi)用。工藝預(yù)設(shè)要求(1)測試點(diǎn)間隔PCB線路板邊緣需大于5mm；(2)測試點(diǎn)不可被阻焊藥或文字油墨籠罩；(3)測試點(diǎn)用鍍焊料或選用質(zhì)地較軟、易貫串、不易氧化的金屬，以保證靠患上住接地，延長探針施用壽命(4)測試點(diǎn)需放置在元件周圍1mm之外，制止探針和元件撞擊；(5)測試點(diǎn)需放置在定位孔（配合測試點(diǎn)用來精確定位，用非金屬化孔，定位孔誤差應(yīng)在±）環(huán)狀周圍；(6)測試點(diǎn)的直徑不小于，相鄰測試點(diǎn)的間距，但不要小于；(7)測試面不能放置高度超過，過高的元器件將導(dǎo)致在線測試夾具探針對測試點(diǎn)的接觸不良；⑻測試點(diǎn)中間至片式元件端邊的間隔C與SMD高度H有如下關(guān)系：SMD高度H≤3mm，C≥2mm；SMD高度H≥3mm，C≥4mm。(9)測試點(diǎn)焊盤的巨細(xì)、間距及其布局還應(yīng)與所采用的測試設(shè)備有關(guān)要求相匹配。延長測試設(shè)備的使用壽命方式？南通音箱測試</p><p style="text-indent:25px">測試治具的標(biāo)準(zhǔn)操作規(guī)程哪些？南通音箱測試</p><p style="text-indent:25px">榮方自動化科技有限公司是一家自動化設(shè)備及治具設(shè)計(jì)開發(fā)、生產(chǎn)服務(wù)為一體的企業(yè)。3、測試點(diǎn)上有松香等絕緣物品，這些物品的存在也會導(dǎo)致檢測的結(jié)果出現(xiàn)偏差。公司主要從事：塑料件自動熱熔螺母，非標(biāo)自動化及配件、視覺檢測、自動送料系統(tǒng)、流水線、產(chǎn)品組裝、工裝治具、鋰電池相關(guān)設(shè)備等生產(chǎn)與研發(fā)、銷售.本公司以的服務(wù)竭誠與廣大客戶交流合作，共創(chuàng)輝煌。ICT測試治具對應(yīng)力測試起著重要的作用，之前經(jīng)常有朋友向小編提起的時候都覺得ICT測試治具的應(yīng)力測試并不重要，這種觀點(diǎn)在不少人心里也是這樣認(rèn)為的。它相當(dāng)于把PCB板子固定在ICT測試治具上并進(jìn)行斯某項(xiàng)測試，如果ICT測試治具的設(shè)計(jì)并不是非常好，那么可能會對PCB板產(chǎn)生超過允許范圍的應(yīng)力，即使設(shè)計(jì)得很好的測試治具也有可能由于時間過長而導(dǎo)致PCB板的內(nèi)部產(chǎn)生很大的應(yīng)力。為了防止以上問題的出現(xiàn)，小編可以對PCB板做一個應(yīng)變測試，把容易產(chǎn)生的高壓力的流程中應(yīng)力測量出來，確定應(yīng)力處于允許的范圍內(nèi)。如果應(yīng)力值過大，可以重新制造或者設(shè)計(jì)ICT測試治具、按要求改變流程，使得應(yīng)變值下降到允許范圍之內(nèi)。ict測試治具常見異常的解決方案：一、當(dāng)測試操作員將ict測試治具裝好后。南通音箱測試</p><p style="text-indent:25px">合肥榮方自動化科技有限公司是一家自動化科技、智能科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)轉(zhuǎn)讓、技術(shù)服務(wù)、技術(shù)推廣；計(jì)算機(jī)軟硬件技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)；物聯(lián)網(wǎng)應(yīng)用服務(wù)；物聯(lián)網(wǎng)技術(shù)服務(wù)；智能建筑系統(tǒng)集成；微型電子設(shè)備、新型元器件銷售(含互聯(lián)網(wǎng)銷售)；軟件設(shè)計(jì)；通訊設(shè)備批發(fā)；數(shù)據(jù)庫系統(tǒng)軟件開發(fā)；建筑智能化工程；室內(nèi)外裝飾裝修工程；綜合布線技術(shù)服務(wù)；工程設(shè)計(jì)活動；計(jì)算機(jī)機(jī)房系統(tǒng)集成服務(wù)；自動化設(shè)備、智能裝備、非標(biāo)自動化設(shè)備的研發(fā)、集成、銷售及技術(shù)服務(wù)(含互聯(lián)網(wǎng)銷售)；人工智能理論與算法軟件開發(fā)；通信設(shè)備嵌入式軟件開發(fā)；集成電路設(shè)計(jì)；安全系統(tǒng)監(jiān)控服務(wù)；數(shù)字視頻設(shè)備嵌入式軟件開發(fā)。（依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動）。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。榮方自動化科技擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供自動化設(shè)備，視覺檢測設(shè)備，集成電路設(shè)計(jì)測試，可視化平臺軟件。榮方自動化科技不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。榮方自動化科技始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使榮方自動化科技在行業(yè)的從容而自信。</p></p><br 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