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id="ceneyfzzuscc" class="conNeiTitle" style="text-indent:10px;"> <span id="ceneyfzzuscc" class="conNeiTitle-span1"><span></span>行業(yè)新聞</span> <span id="ceneyfzzuscc" class="conNeiTitle-span2">當(dāng)前位置:<a href='http://www.uf7o.cn/'>主頁(yè)</a> > <a href='http://www.uf7o.cn/news/'>新聞中心</a> > <a href='http://www.uf7o.cn/news2/'>行業(yè)新聞</a> > </span> </div> <div id="ceneyfzzuscc" 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;">密封航空插頭電連接器壓強(qiáng)單位的換算</h1> <div id="ceneyfzzuscc" class='search2' style='text-align:center; border-top:dotted 1px #999; margin-top:10px; padding-top:10px;'><strong>發(fā)布時(shí)間: </strong>2019-04-17　瀏覽次數(shù): ?<script src="http://www.uf7o.cn/plus/count.php?view=yes&aid=1211&mid=1"type='text/javascript' language="javascript"></script></div> <div id="ceneyfzzuscc" class="newp" style=" width:98%; padding:8px;"> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">密封</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http://www.uf7o.cn/"><span style="color:#ff0000;">航空插頭</span></a></span></strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">電連接器壓強(qiáng)單位的換算大家知道嗎？首先要了解</span><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-indent: 2em; caret-color: red;">真空度的標(biāo)識(shí)通常有兩種方法：一是用“絕對(duì)壓力”、“絕對(duì)真空度”（即比“理論真空”高多少壓力)標(biāo)識(shí)；</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">在實(shí)際情況中，真空密封連接器的絕對(duì)壓力值介于0～101.325KPa之間。絕對(duì)壓力值需要用絕對(duì)壓力儀表測(cè)量，在20℃、海拔高度＝0的地方，用于測(cè)量真空度的儀表(絕對(duì)真空表)的初始值為101.325KPa(即一個(gè)標(biāo)準(zhǔn)大氣壓)。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">二是用“相對(duì)壓力”、“相對(duì)真空度”(即比“大氣壓”低多少壓力)來標(biāo)識(shí)。 "相對(duì)真空度"是指被測(cè)對(duì)象的壓力與測(cè)量地點(diǎn)大氣壓的差值。用普通真空表測(cè)量。在沒有真空的狀態(tài)下(即常壓時(shí))，表的初始值為0。當(dāng)測(cè)量真空時(shí)，它的值介于0到－101.325KPa（一般用負(fù)數(shù)表示）之間。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em; text-align: center;"> <img alt="密封航空插頭電連接器壓強(qiáng)" src="http://www.uf7o.cn/uploads/allimg/170822/1-1FR2152241130.png" style="height: 306px; width: 400px;" title="密封航空插頭電連接器壓強(qiáng)" /></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">比如，有一款真空密封</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http://www.uf7o.cn/"><span style="color:#ff0000;">航空插頭</span></a></span></strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; color: rgb(0, 0, 0); text-indent: 2em;">連接器測(cè)量值為－75KPa，則表示真空航空插頭可以抽到比測(cè)量地點(diǎn)的大氣壓低75KPa的真空狀態(tài)。國(guó)際真空行業(yè)通用的“真空度”，也是最科學(xué)的是用絕對(duì)壓力標(biāo)識(shí)；指得是“極限真空、絕對(duì)真空度、絕對(duì)壓力”，但“相對(duì)真空度”(相對(duì)壓力、真空表表壓、負(fù)壓)由于測(cè)量的方法簡(jiǎn)便、測(cè)量?jī)x器非常普遍、容易買到且價(jià)格便宜，因此也有廣泛應(yīng)用。</span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">理論上二者是可以相互換算的,兩者換算方法如下：相對(duì)真空度=絕對(duì)真空度(絕對(duì)壓力)-測(cè)量地點(diǎn)的氣壓例如：有一款微型真空密封航空插頭連接器絕對(duì)壓力為80KPa，則它的相對(duì)真空度約為80-100＝-20Kpa，(測(cè)量地點(diǎn)的氣壓假設(shè)為100KPa)在普通真空表上就該顯示為-0.02MPa。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">常用的真空度單位有Pa、Kpa、Mpa、大氣壓、公斤(Kgf/cm2)、mmHg、mbar、bar、PSI等。近似換算關(guān)系如下：1MPa=1000KPa、1KPa=1000Pa、1大氣壓=100KPa=0.1MPa、1大氣壓=1公斤(Kgf/cm2)=760mmHg、1大氣壓=14.5PSI、1KPa=10mbar、1bar=1000mbar負(fù)壓抽出式通風(fēng)的礦井中，風(fēng)流的絕對(duì)壓力小于井外或風(fēng)筒外同標(biāo)高的絕對(duì)壓力，其相對(duì)壓力為負(fù)值，稱負(fù)壓簡(jiǎn)單的說，“負(fù)壓”是低于常壓（即常說的一個(gè)大氣壓）的氣體壓力狀態(tài)。也就是我們常說的“真空”。例如，用管子喝飲料時(shí)，管子里就是負(fù)壓；用來掛東西的吸盤內(nèi)部，也是負(fù)壓等等。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="font-family: arial, helvetica, sans-serif; font-size: 14px; caret-color: red; text-indent: 2em;"><span style="color:#000000;"><span style="text-indent: 2em; caret-color: red;">相信大家一定對(duì)</span></span><strong><a _href="http://www.uf7o.cn/" href="http://www.uf7o.cn/"><span style="color:#ff0000;"><span style="text-indent: 2em; caret-color: red;">航空插頭</span></span></a></strong></span><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; caret-color: red; text-indent: 2em;">有了更深入的了解，上?？朴姎庥邢薰?，專營(yíng)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(dāng)日發(fā)貨質(zhì)量有保證，歡迎致電咨詢合作。<strong>航空插頭廠家http://www.uf7o.cn/ </strong></span></span></p> </div> <div id="ceneyfzzuscc" 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://www.uf7o.cn/news2/1210.html'>航空插頭檢測(cè)標(biāo)志與電阻值有什么關(guān)系</a> 下一篇：<a href='http://www.uf7o.cn/news2/1212.html'>大梁傾角-控裝器電纜廠家</a> </div> </div> <div id="ceneyfzzuscc" class="tj"> <div id="ceneyfzzuscc" class="tj_wz"> <div id="ceneyfzzuscc" class="neiyeLeft-ctitle" style="margin-top:20px; text-align:left;"> <span id="ceneyfzzuscc" class="neiyeLeft-span"> 最新文章</span> </div> <div id="ceneyfzzuscc" class="ctext_l" style="padding-top:8px;border:solid 1px #dddddd; 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