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<div id="dztbprhhvx93" class="conNeiRong"> <div id="dztbprhhvx93" class="conNeiTitle" style="text-indent:10px;"> <span id="dztbprhhvx93" class="conNeiTitle-span1"><span></span>行業(yè)新聞</span> <span id="dztbprhhvx93" class="conNeiTitle-span2">當前位置:<a href='http:///'>主頁</a> > <a href='http:///news/'>新聞中心</a> > <a href='http:///news2/'>行業(yè)新聞</a> > </span> </div> <div id="dztbprhhvx93" class="conNeiText"> <div style=" text-align:left; float:left; margin:0px; padding:0px auto; width:98%;min-height:565px; margin-left:8px;"> <h1 class="title" style="margin-top:10px; margin-left:10px; text-align:center; line-height:35px;">航空插頭的二十一項主要指標詳解</h1> <div id="dztbprhhvx93" class='search2' style='text-align:center; border-top:dotted 1px #999; margin-top:10px; padding-top:10px;'><strong>發(fā)布時間: </strong>2018-11-07　瀏覽次數: ?<script src="http:///plus/count.php?view=yes&aid=640&mid=1"type='text/javascript' language="javascript"></script></div> <div id="dztbprhhvx93" class="newp" style=" width:98%; padding:8px;"> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭有非常多的參數指標，有主要的有次要的，今天上海科迎法電氣技術人員為大家總結<strong><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></strong>的二十一項主要指標。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">1.航空插頭機械參數</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭中接觸壓力是一個重要指標，它直接影響到接觸電阻的大小和接觸對的磨損量。在大多數結構中，直接測量接觸壓力是相當困難的。因此，往往通過單腳分離力來間接測算接觸壓力。對于圓形針孔接觸對，通常是用有規(guī)定重量砝碼的標準插針來檢驗陰接觸件夾持砝碼的能力，一般其標準插針的直徑是陽接觸件直徑的下限?。?μm ?？偡蛛x力一般是單腳分離力上線之和的兩倍。總分離力超過50N 時，用人工插拔已經相當困難了。當然，對一些測試設備或某些特殊要求的場合，可選用零插拔力航空插頭，自動脫落航空插頭等等。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">2.航空插頭機械壽命</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭的機械壽命是指插拔壽命，通常規(guī)定為500 ～1000 次。在達到此規(guī)定的機械壽命時，航空插頭的接觸電阻，絕緣電阻和耐壓等指標不應超過規(guī)定的值。嚴格的說，機械壽命是一種模糊的概念。機械壽命應該與時間有一定的關系，10 年用完500 次與1 年用完500 次，顯然其情況是不一樣的。只不過還沒有一種更經濟，更科學的方法來衡量。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">3.航空插頭絕緣電阻</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">絕緣電阻是指在<strong><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></strong>的絕緣部分施加電壓，從而使絕緣部分的表面內或表面上產生漏電流而呈現出的電阻值。它主要受絕緣材料，溫度，濕度，污損等因素的影響。航空插頭樣本上提供的絕緣電阻值一般都是在標準大氣條件下的指標值，在某些環(huán)境條件下，絕緣電阻值會有不用程度的下降。另外要注意絕緣電阻的試驗電壓值。根據絕緣電阻（MΩ ）=加在絕緣體上的電壓（V ）/泄漏電流（μA ）施加不同的電壓，就有不同的結果。在航空插頭的試驗中，施加的電壓一般有10V ，100V ，500V 三檔。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">4.航空插頭耐壓</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">耐壓就是接觸對的相互絕緣部分之間或絕緣部分與接地之間，在規(guī)定時間內所能承受的比額定電壓更高而不產生擊穿現象的臨界電壓。它主要受接觸對間距和爬電距離和幾何形狀，絕緣體材料以及環(huán)境溫度和濕度，大氣壓力的影響。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">5.航空插頭燃燒性</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">任何航空插頭在工作時都離不開電流，這就存在起火的危險性。因此對航空插頭不僅要求能防止引燃，還要求在一旦引燃和起火時，能在短時間內自滅。在選用時要注意選擇采用阻燃型，自熄性絕緣材料的航空插頭。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">6.航空插頭連接方式</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭一般由插頭和插座組成，其中插頭也稱自由端航空插頭，插座也稱固定航空插頭。通過插頭、插座和插合和分離來實現電路的連接和斷開，因此就產生了插頭和插座的各種連接方式。對圓形航空插頭來說，主要有螺紋式連接，卡口式連接和彈子式連接三種方式。其中螺紋式連接最常見，它具有加工工藝簡單、制造成本低、適用范圍廣等優(yōu)點，但連接速度較慢不適宜于需頻繁插拔和快速接連的場合?？谑竭B接由于其三條卡口槽的導程較長，因此連接的速度較快，但它制造較復雜，成本也就較高。彈子式連接是三種連接方式中連接速度最快的一種，它不需進行旋轉運動，只需進行直線運動就能實現連接、分離和鎖緊的功能。由于它屬于直推拉式連接方式，所以僅適用于總分離力不大的航空插頭。一般在小型航空插頭中較常見。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">7.航空插頭安裝方式和外形</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭的安裝有前安裝和后安裝，安裝固定方式有鉚釘、螺釘、卡圈或航空插頭本身卡銷快速鎖定等。也有一種插頭和插座是均是自由端<strong><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></strong>，即所謂中繼航空插頭。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">8.航空插頭接觸對數目和針孔性</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">首選可根據電路的需要來選擇接觸對的數目，同時要考慮電連接器的體積和總分離力的大小。接觸對數目多，當然其體積就大，總分離力相對也大。在某些可靠性要求高、而體積又允許的情況下，可采用兩對接觸對并聯(lián)的方法來提高連接的可靠性。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭的插頭、插座中，插針（陽接觸件）和插孔（陰接觸件）一般都能互換裝配。實際使用時，可根據插頭和插座兩端的帶電情況來選擇。如插座需常帶電，可選擇裝插孔的插座，因為裝插孔的插座，其帶電接觸件埋在絕緣體中，人體不易觸摸到帶電接觸件，相對來說比較安全。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">9.航空插頭振動、沖擊、碰撞</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">主要考慮航空插頭在規(guī)定頻率和加速度條件下振動、沖擊、碰撞時的接觸對的電連續(xù)性。接觸對在此動態(tài)應力情況下會發(fā)生瞬時斷路的現象。規(guī)定的瞬斷時間一般有1μs 、10μs 、100μs 、1ms 和10ms 。要注意的是如何判斷接觸對發(fā)生瞬斷故障一般認為，當閉合接觸對（觸點）兩端電壓降超過電源電動勢的50% 時，可判定閉合接觸對（觸點）發(fā)生故障。也就是說判斷是否發(fā)生瞬斷有兩個條件：持續(xù)時間和電壓降，兩者缺一不可。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">10. 航空插頭大氣壓力</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">在空氣稀薄的高空，塑料放出氣體污染接觸對，并使電暈產生的趨勢增加，耐壓性能下降，使電路產生短路故障。在高空達到某一定值時，塑料性能變差。因此在高空使用非密封航空插頭時，必須降額使用。在低氣壓下推薦的電壓降額系數見表.</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">11.航空插頭腐蝕環(huán)境</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">根據航空插頭的不同使用腐蝕環(huán)境，選用相應金屬、塑料、鍍層結構的<strong><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></strong>，像在鹽霧環(huán)境下使用的航空插頭，如果沒有防腐的金屬表面，會使性能迅速惡化。在含有相當濃度的SO2 環(huán)境中，不宜使用鍍銀接觸對的航空插頭。在潮熱地區(qū)，霉菌也是重要問題。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">12.航空插頭端接方式</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">端接方式是指航空插頭的接觸對與電線或電纜的連接方式。合理選擇端接方式和正確使用端接技術，也是使用和選擇航空插頭的一個重要方面。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">13.航空插頭刺破接連</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">刺破連接又稱絕緣位移連接，是由美國在60 年代發(fā)明的一種新穎端技術，具有可靠性高、成本低、使用方便等特點已廣泛應用于各種印制板用電連接器中。它適用于帶狀電纜的連接。連接時不需要剝去電纜的絕緣層，依靠航空插頭的“U” 字形接觸簧片的尖端刺入絕緣層中，使電纜的導體滑進接觸簧片的槽中并被夾持住，從而使電纜導體和航空插頭簧片之間形成緊密的電氣連接性。它僅需簡單的工具，但必須選用規(guī)定線規(guī)的電纜。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">14.航空插頭螺釘連接</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">螺釘連接是采用螺釘式接線端子的連接方式，要注意允許連接導線的最大和最小截面和不同規(guī)格螺釘允許的最大擰緊力矩。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">15.航空插頭焊接</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">焊接最常見的是錫焊。錫焊連接最重要的是焊錫料與被焊接表面之間應形成金屬的連續(xù)性。因此對航空插頭來說，重要的是可焊性。航空插頭焊接端最常見的鍍層是錫合金、銀和金。簧片式接觸對常見的焊接端有焊片式、沖眼焊片式和缺口焊片式：針孔式接觸對常見焊接端有鉆孔圓弧缺口式。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">16.航空插頭壓接</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">壓接是為使金屬在規(guī)定的限度內壓縮和位移并將導線連接到接觸對上的一種技術。好的壓接連接能產生金屬互熔流動，使導線和接觸對材料對稱變形。這種連接類似于冷焊連接，能得到較好的機械強度和電連續(xù)性，它能承受更惡劣的環(huán)境條件普遍認為采用正確的壓接連接比錫焊好，特別是在大電流場合必須使用壓接。壓接時須采用專用壓接鉗或自動、半自動壓接機。應根據導線截面，正確選用接觸對的導線筒。要注意的是壓接連接是永久性連接，只能使用一次。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">17.航空插頭繞接</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">繞接是將導線直接纏繞在帶棱角的接觸件繞接柱上。繞接時，導線在張力受到控制的情況下進行纏繞，壓入并固定在接觸件繞接柱的棱角處，以形成氣密性接觸。繞接導線有幾個要求：導線直徑的標稱值應在0.25mm~1.0mm 范圍內；導線直徑不大于0.5mm 時，導體材料的延伸率不小于15% ；導線直徑大于0.5mm 時，導體材料的延伸率不小于20% 。繞接的工具包括繞槍和固定式繞接機。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">18.航空插頭環(huán)境參數</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">環(huán)境參數主要有環(huán)境溫度、濕度、溫度急變、大氣壓力和腐蝕環(huán)境等。電連接器在使用和保管、運輸過程中所處的環(huán)境對其性能有顯著的影響，所以必須根據實際的環(huán)境條件選用相應的航空插頭。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">19.航空插頭環(huán)境溫度</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">航空插頭的金屬材料和絕緣材料決定著電連接器的工作環(huán)境溫度。高溫會破壞緣材料，引起絕緣電阻和耐壓性能降低；對金屬而言高溫可使接觸對失去彈性，加速氧化和發(fā)生鍍層變質。通常的環(huán)境溫度為-55~100 ℃ 特殊場合下可能要求更高。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">20.航空插頭潮濕</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">相對濕度大于80% ，是引起電擊穿的要原因。潮濕環(huán)境引起水蒸氣在絕緣體表面的吸收和擴散，容易使絕緣電阻降低到MΩ 級以下，長期處在高濕環(huán)境下，會引起物理變形，分解、逸出生成物，產生呼吸效應及電解、腐蝕和裂紋。特別是在設備外部的電連接器，常常要考慮潮濕、水滲和污染的環(huán)境條件，這種情況下應選用密封航空插頭。對于水密、塵密型電連接器一般采用GB4208 的外殼防護等級來表示。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">濕度急變試驗是模擬使用航空插頭設備在寒冷的環(huán)境轉入溫暖環(huán)境的實際使用情況，或者模擬空間飛行器、探測器環(huán)境溫度急劇變化的情況。溫度急變可能使絕緣材料裂紋或起層。</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">21.航空插頭溫度急變</span></strong></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"> <span style="font-size:14px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">相信大家一定對<strong><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></strong>有了更深入的了解，上?？朴姎庥邢薰?，專營航空插頭,防水連接器 ,傳感器連接器,電纜連接器,帶線插座,汽車線束,圓形接插件,防水插座,水位水溫傳感器等,當日發(fā)貨質量有保證，歡迎致電咨詢合作。航空插頭廠家http:///</span></span></p> <p style="margin: 5px 0px; padding: 0px; max-width: 100%; font-family: 微軟雅黑; clear: both; font-size: 16px; min-height: 1em; color: rgb(0, 0, 0); box-sizing: border-box !important; word-wrap: break-word !important;"> </p> </div> <div id="dztbprhhvx93" class="prodcont-cls" style="text-align:left; min-height:60px;">?</div> <div style="width:100%; height:50px; text-align:center; margin-top:50px;"> 上一篇：<a href='http:///news2/639.html'>安裝防水航空插頭的四大注意事項</a> 下一篇：<a href='http:///news2/641.html'>現在的航空插頭和過去對比有哪些區(qū)別？</a> </div> </div> <div id="dztbprhhvx93" class="tj"> <div id="dztbprhhvx93" class="tj_wz"> <div id="dztbprhhvx93" class="neiyeLeft-ctitle" style="margin-top:20px; text-align:left;"> <span id="dztbprhhvx93" class="neiyeLeft-span"> 最新文章</span> </div> 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