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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川HDPE波紋管價(jià)格,波紋管</p><p><span>***更新：</span>2020-11-29 04:07:40</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="b3qifx7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">四川創(chuàng)世界建材有限公司</a></p><p><span>聯(lián)系人：</span>曾經(jīng)理</p><p><span>郵箱: </span>373793897@qq.com</p><p><span>電話: </span>18008052768</p><p><span>傳真: </span>028_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>028-68867225</p><p><span>地址: </span>金府路555號(hào)萬貫五金機(jī)電市場(chǎng)25號(hào)配送大廳14/15/16號(hào)</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="3kgizgp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="xhj29uo" class="box"><p><p> 波紋管主要包括金屬波紋管、波紋膨脹節(jié)、波紋換熱管、膜片膜盒和金屬軟管等。金屬波紋管主要應(yīng)用于補(bǔ)償管線熱變形、減震，四川HDPE波紋管價(jià)格、吸收管線沉降變形等作用，大面積應(yīng)用于石化，四川HDPE波紋管價(jià)格、儀表、航天、化工、電力，四川HDPE波紋管價(jià)格、水泥、冶金等行業(yè)。塑料等其他材質(zhì)波紋管在介質(zhì)輸送、電力穿線、機(jī)床、家電等領(lǐng)域有著不可替代的作用。波紋管：壓力測(cè)量?jī)x表中的一種測(cè)壓彈性元件。它是具有多個(gè)橫向波紋的圓柱形薄壁折皺的殼體，波紋管具有彈性，在壓力、軸向力、橫向力或彎矩作用下能產(chǎn)生位移。用于閥門閥桿密封的波紋管一般情況下承受外壓在這里主要分析波紋管承受內(nèi)壓時(shí)的應(yīng)力；四川HDPE波紋管價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川HDPE波紋管價(jià)格,波紋管" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637233344095429687/7241051.jpg"></div><p> 彈性元件的額定壽命是元件設(shè)計(jì)時(shí)定出的預(yù)期使用壽命，要求在這段期間內(nèi)元件不允許出現(xiàn)疲勞、損壞或失效等現(xiàn)象。密封性密封性是指元件在一定的內(nèi)、外壓差作用下保證不泄漏的性能。波紋管類組件工作時(shí)，內(nèi)腔充有氣體或液體介質(zhì)，并有一定的壓力，因此必須保證密封性。密封性的檢測(cè)方法有氣壓密封性試驗(yàn)、滲漏試驗(yàn)、液體加壓試驗(yàn)、用肥皂水或氦質(zhì)譜檢漏儀檢測(cè)。自振頻率在工業(yè)中使用的彈性元件，其工作環(huán)境往往都有一定程度的振動(dòng)，有些元件用作隔振部件．本身就處在振動(dòng)條件下。對(duì)于在特殊條件下應(yīng)用的彈性元件，必須防止元件的自振頻率（特別是基頻）與系統(tǒng)中任何一種振動(dòng)源振頻相近，避免發(fā)生共振而引起損壞。波紋管類組件在各種領(lǐng)域中得到了大面積的應(yīng)用，為避免波紋管發(fā)生共振面損壞，波紋管的固有頻率應(yīng)低于系統(tǒng)的振動(dòng)頻率，或至少比系統(tǒng)振頻高出50%。四川HDPE波紋管價(jià)格波紋管不產(chǎn)生塑性變形情況下所能獲得的比較大位移稱為波紋管的允許位移。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川HDPE波紋管價(jià)格,波紋管" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637233344092871093/3319146.jpg"></div><p> 承載載荷；作用在金屬波紋管及其它彈性元件上的各種預(yù)期的負(fù)荷值，如集中力F、壓力p和力矩M等。在金屬波紋管類彈性元件使用時(shí)，除給定施加的載荷值外，還須給定載荷的作用方向及作用位置。對(duì)于壓力載荷，還要說明彈性元件是承受內(nèi)腔壓力或外腔壓力。金屬波紋管及其它彈性元件在正常工作條件下允許使用的比較大載荷值或滿量程值。它通常是預(yù)期的設(shè)計(jì)值，或是對(duì)產(chǎn)品原型經(jīng)過實(shí)際檢測(cè)后再經(jīng)修定的設(shè)計(jì)值。具體彈性元件產(chǎn)品在工作中經(jīng)受瞬間或試驗(yàn)期間允許超過額定載荷而不發(fā)生損壞、失效、失穩(wěn)時(shí)的承載能力。對(duì)于儀表彈性敏感元件，一般限定超載能力為額定載荷的125%。在工程中使用的波紋管類組件，一般限定在額定載荷的150%。根據(jù)工程要求，當(dāng)要求大的安全系數(shù)時(shí)，使用的彈性元件規(guī)定不允許有任何超載，因此載荷必須小于或等于額定載荷值。 </p><p> 2．波紋管的體積有效面積波紋管在外力或壓差作用下，其體積變化量與相應(yīng)的有效長(zhǎng)度的變化量之比值稱為體積有效面積。3．波紋管有效面積的計(jì)算對(duì)波紋管有效面積提出的要求及其計(jì)算方法取決于波紋管的用途。如果波紋管用作彈性密封件或管路熱補(bǔ)償時(shí)，有效面積的意義*在于用來計(jì)算波紋管成形時(shí)的軸向力和使用系統(tǒng)中的推力。波紋管的有效面積計(jì)算值與實(shí)測(cè)值之間急有一些差別。一般情況下用**公式計(jì)算波紋管的有效面積，是可以滿足需要的。當(dāng)波紋管用于力平衡儀表和需要將壓力轉(zhuǎn)換為力的場(chǎng)臺(tái)，應(yīng)準(zhǔn)確確定其有效面積，要求逐個(gè)進(jìn)行測(cè)量。波紋管位移與零位偏移之間的關(guān)系，無論拉伸還是壓縮位移，在波紋管位移的起始階段，它的殘余變形量都很小。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川HDPE波紋管價(jià)格,波紋管" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637233344100947265/8080144.jpg"></div><p> 殘余變形金屬波紋管及其它彈性元件的殘余變形是指加載后元件產(chǎn)生位移，而卸載后再經(jīng)過相當(dāng)長(zhǎng)的一段時(shí)間彈性元件仍不能回復(fù)到原始位置．產(chǎn)生一個(gè)長(zhǎng)久變形的殘留值。元件的殘余變形里與使用狀態(tài)有關(guān)。當(dāng)拉伸（或壓縮）的位移里逐漸增大到一定的位移值后，殘余變形將明顯增加。殘余變形是判定彈性元件變形能力的參數(shù)對(duì)于彈性敏感元件，如果在達(dá)到額定位移值后產(chǎn)生了較大的殘余位移，這將影響儀表的測(cè)量精度。因此．一般對(duì)殘余變形量給出一定的界限值。在工程中應(yīng)用的波紋管類組件（如波紋膨脹節(jié)），有時(shí)為得到較大的位移，使元件工作在彈塑性區(qū)，會(huì)出現(xiàn)較大的殘余變形。如能滿足一定的使用壽命而不失效．這時(shí)殘余變形量不再考慮。波紋管在工作時(shí)，有的承受內(nèi)壓，有的承受外壓；四川HDPE波紋管價(jià)格</p><p style="text-indent:25px">要計(jì)算波紋管比較大工作應(yīng)力必須分析波紋管管壁中的應(yīng)力分布。四川HDPE波紋管價(jià)格</p><p> 當(dāng)波紋管兩端都受到限制時(shí)，如果波紋管內(nèi)壓力增大至某一臨界值，波紋管就會(huì)產(chǎn)生失穩(wěn)現(xiàn)象。允許位移；對(duì)于工作在壓縮狀態(tài)的波紋管，它的比較大壓縮位移是：波紋管在壓力作用下，壓縮到波紋之間相互彼此接觸時(shí)所能產(chǎn)生的比較大位移值，也稱為結(jié)構(gòu)允許比較大位移，它等于波紋管自由長(zhǎng)度與比較大壓縮長(zhǎng)度之差。波紋管不產(chǎn)生塑性變形情況下所能獲得的比較大位移稱為波紋管的允許位移。波紋管在實(shí)際工作過程中會(huì)產(chǎn)生殘余變形，殘余變形又稱長(zhǎng)久變形或塑性變形，波紋管在力或壓力作用下產(chǎn)生變形，當(dāng)力或壓力卸除后，波紋管不恢復(fù)原始狀態(tài)的現(xiàn)象稱殘余變形，殘余變形通常用波紋管不恢復(fù)原始位置的量來表示又稱零位偏移。四川HDPE波紋管價(jià)格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2188049.html</p></div></div></div></div></div><div id="xryaxeb" class="page-right twoColRt"><div id="8ryamy3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="azrovxe" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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