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id="ceneyfzzuscc" class="neiyeLeft-span"> 聯(lián)系我們 / Contact Us</span> </div> <div id="ceneyfzzuscc" class="ctext" style="padding-top:8px;border:solid 1px #dddddd; background-color:#f3f1f2; width:99%;"> <ul class="indexleft-list"> <div><span style="font-weight: bold;">上海科迎法電氣有限公司　</span></div> <div><span style="font-size: 9pt;">電話：021-64822327 64822118<br>???????????????67881109 67881107<br>郵箱：67881109@kyfbest.com</span></div> <div>郵箱：476294094@kyfbest.com</div> <div>郵箱：18701876288@kyfbest.com</div> <div>地址：上海松江高科技工業(yè)園淶寅路<br>1881號5號樓2層</div> <div>郵編：201615</div> <div>網(wǎng)站：www.uf7o.cn<br>?????????www.best5858.com</div> <div><br></div> </ul> </div> </div> <div id="ceneyfzzuscc" class="contRight"> <div id="ceneyfzzuscc" class="conNeiRong"> <div 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">當前位置:<a href='http://www.uf7o.cn/'>主頁</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;">電連接器出現(xiàn)開裂是什么原因</h1> <div id="ceneyfzzuscc" class='search2' style='text-align:center; border-top:dotted 1px #999; margin-top:10px; padding-top:10px;'><strong>發(fā)布時間: </strong>2019-02-26　瀏覽次數(shù): ?<script src="http://www.uf7o.cn/plus/count.php?view=yes&aid=1132&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;">電連接器為什么會開裂，有什么方法可以解決?科迎法</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http://www.uf7o.cn/"><span style="color:#ff0000;">電連接器定制</span></a></span></strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">廠家來告訴大家如何分析。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 14px;">電連接器</span><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">開裂的原因：</span></span></strong></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;">1、材料抗拉強度不足而產(chǎn)生的破裂，如靠凹，凸模園角處，局部受力過大而破裂。</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;">2、材料變形量不足而破裂，在脹形變形時，靠凸模頂部產(chǎn)生的破裂，或凸緣伸長變形流入引起的破裂。</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;">3、時效裂紋：即嚴重成型硬化部分，經(jīng)應變時效脆化又加重，并且成形時的殘余應力作用引起的制件晚期破裂。</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;">4、材料受拉伸彎曲既而又彎曲折回以致產(chǎn)生破裂，多產(chǎn)生于凸筋或凹?？谔?。</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;">5、條紋狀裂紋。由于材料內(nèi)有雜質(zhì)引起的裂紋，一般平行于板料軋制方向。</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;">6、過 SMT 時受熱沖擊出現(xiàn)受力集中如各部件受熱變形不均勻相互干涉。</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;">7、連接器公頭與母頭配合尺寸不合適，引起過量的應力。</span></span></p> <p style="text-align: center;"> <img alt="電連接器出現(xiàn)開裂" src="http://www.uf7o.cn/uploads/allimg/170823/1-1FR3104254928.png" style="height: 315px; width: 400px;" title="電連接器出現(xiàn)開裂" /></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 14px;">電連接器</span><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">開裂解決方法：</span></span></strong></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;">1、材料方面：塑膠件采用拉伸性能較好的材料，適當減少五金件與塑膠件的過盈配合。</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;">2、減少應變方面：</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;">選擇合理的產(chǎn)品結(jié)構，如五金外殼，五金端子的相互配合調(diào)整塑膠件受力位置及受力程度減少受熱沖擊等應力改善潤滑條件</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;">3、產(chǎn)品設計及模具設計</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;">首先分析下塑料件開裂可能的原因。產(chǎn)品設計進行優(yōu)化，合理選擇壁厚，合理選擇加強筋。開裂部位過厚或者過薄也會引起開裂。</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;">模具設計進行優(yōu)化，澆口位置選擇合適位置，澆口大小也要合適，分型線位置避開對開裂影響，頂出需要平衡。</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;">4、成形工藝優(yōu)化</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;">材料的性能并非一定的，不同的成形機臺，不同的成形工藝會得到不同的性能，因此選用良好的機臺及優(yōu)化成形工藝可使得產(chǎn)品的實際性能提高。</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;">5、合理的次料添加比通常材料都是可以反復回收使用的，但回收料的性能是有下降，因此合適的次料添加比是要根據(jù)具體的產(chǎn)品進行實際的測試才能確定。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><span style="color:#000000;">相信大家一定對</span><strong><a _href="http://www.uf7o.cn/" href="http://www.uf7o.cn/"><span style="color:#ff0000;">航空插頭</span></a></strong><span style="color:#000000;">有了更深入的了解，上?？朴姎庥邢薰荆瑢I航空插頭,防水連接器 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