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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="q66nxzv" class="twoCol"><div id="1kojtdu" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_xiangsu/">橡塑</a>?<a href="http://www.cdcfah.com/cp/second-xiangsu_suliaoguan/">塑料管</a>?<a href="http://www.cdcfah.com/cp/third-suliaoguan_pvcguanor/">PVC管</a>?棗莊PPR熱水管公司淄博齊泰武峰塑業(yè)供應</p><div id="s6d16po" class="leftbox clearfix"><h1>棗莊PPR熱水管公司淄博齊泰武峰塑業(yè)供應</h1><div id="iz4zj62" class="proBig"><div id="1cbw9w1" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qitaiwufeng/637171866564453125/6915324.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="je4tgul" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qitaiwufeng/637171866564453125/6915324.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fl1lnx6" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>棗莊PPR熱水管公司</p><p><span>***更新：</span>2020-06-21 18:17:08</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qwhhni6" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">淄博齊泰武峰塑業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>孫經(jīng)理</p><p><span>郵箱: </span>qitaiwufeng@163.com</p><p><span>電話: </span>13864457695</p><p><span>傳真: </span>0533_3345789</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0533-3345789</p><p><span>地址: </span>山東省淄博市開發(fā)區(qū)</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="zn1ytdr" class="page-proshow02"><p class="title">詳細說明</p><div id="xovqlcq" class="box"><p><p style="text-indent:25px">PP無規(guī)共聚物一般含有 1－ 7%（重量）的乙烯分子及 99— 93%（重量）的丙烯分子。在聚合物鏈上，乙烯分子無規(guī)則地插在丙烯分子中間。在這種無規(guī)的或統(tǒng)計學共聚物中，大多數(shù)（通常 75%）的乙烯是以單分子插入的方式結(jié)合進去的，叫做X3基團（三個連續(xù)的乙烯[CH2]依次排列在主{TodayHot}鏈上），這還可看成是一個乙烯分子插在兩個丙烯分子中間。另有 25%的乙烯是以多分子插入的方式結(jié)合進主鏈的，棗莊PPR熱水管公司，又叫X5基團，因為有5個連續(xù)的亞甲基團（兩個乙烯分子一起插在兩個丙烯分子中間）。很難把X5和更高的基團如X7、X9等加以區(qū)分。鑒于此，棗莊PPR熱水管公司，把XS和更高基團的乙烯含量一起統(tǒng)計為>X3%。無規(guī)度比值X3/X5可以測定。當X3以上基團的百分比很大時，將明顯降低共聚物的結(jié)晶度，這對無規(guī)共聚物的**終性能影響很大，棗莊PPR熱水管公司。共聚物中極高含量的乙烯對聚合物結(jié)晶度的影響，類似于高無規(guī)聚丙烯含量時的作用。無規(guī)PP共聚物</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="棗莊PPR熱水管公司" src="http://tyunfile.71360.com/UploadFile/qitaiwufeng/637171866564453125/6915324.jpg"></div><p style="text-indent:25px">很多人在安裝管道前做了很多，很認真，不過安裝完成后就不怎么管理了，宏添管業(yè)提醒廣大ppr管道用戶，在管道安裝完成后保護好管道也是必須的。1、安裝過程中管道開口處應及時封堵，防止污、雜物進入而造成工程。 2、隱蔽管道應帶壓隱蔽，一般應以工作壓力為保壓壓力，待隱蔽層達到許可的強度后方可撤壓。 3、由于PPR管道質(zhì)地較軟，自身的機械強度沒有鋼管高，因此要嚴防物理破壞，安裝完成后管道嚴禁磕、碰、砸、壓，在隱蔽前應做好覆蓋保護措施，位于管道井內(nèi)的管道在沒有封閉前要采取一定的措施防止磚頭、雜物等掉下來將管道砸斷；由于PP-R管的組成元素，要甚防化學破壞，這一點在施工中極易忽視，安裝在戶外或有陽光直射的管道，要包扎深顏色的保護層，防止陽光照射對管道造成化學破壞。 4、冬季低溫期間，如沒有良好的保溫措施，應及時將管道內(nèi)的水吹凈，防止管道凍壞。 5、隱蔽完成后一定要作好標識，以防其它工程施工破壞管道。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="棗莊PPR熱水管公司" src="http://tyunfile.71360.com/UploadFile/qitaiwufeng/637171867131669922/8872775.jpg"></div><p> 1、PP-R管較金屬管硬度低、剛性差,在搬運、施工中應加以保護,避免不適當外力造成機械損傷.在暗敷后要標出管道位置,以免二次裝修破壞管道.2、PP-R管5℃以下存在一定低溫脆性,冬季施工要當心,切管時要用鋒利緩慢切割.對已安裝的管道不能重壓、敲擊,必要時對易受外力部位覆蓋保護物.3、PP-R管長期受紫外線照射易老化降解,安裝在戶外或陽光直射處必須包扎深色防護層.4、PP-R管除了與金屬管或用水器連接使用帶螺紋嵌件或法蘭等機械連接方式外,其余均應采用熱熔連接,使管道一體化,無滲漏點.5、PP-R管的線膨脹系數(shù)較大(℃),在明裝或非直埋暗敷布管時必須采取防止管道膨脹變形的技術(shù)措施.6、管道安裝后在封管(直埋)及覆蓋裝飾層(非直埋暗敷)前必須試壓.冷水管試壓壓力為系統(tǒng)工作壓力的；熱水管試驗壓力為工作壓力的2倍,但不得小于、PP-R管明敷或非直埋暗敷布管時。 </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/340774.html</p></div></div></div></div></div><div id="jlkmeof" class="page-right twoColRt"><div id="kbh4e42" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qpg61ld" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div 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