西雙版納鋁塑PPR管材廠家歡迎來(lái)電云南金諾達(dá)管業(yè)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="ppr管低溫情況下脆性的原因 ppr管在現(xiàn)在的社會(huì)當(dāng)中應(yīng)用越來(lái)越普遍,因?yàn)樗陨淼膬?yōu)勢(shì)和特點(diǎn)讓它在管材行業(yè)當(dāng)中占據(jù)了很重要的地位，西雙版納鋁塑PPR管材廠家.是無(wú)規(guī)共聚聚丙烯，也就是我們所說(shuō)的Ⅲ型聚丙烯。它"><meta name="keywords" content="西雙版納鋁塑PPR管材廠家"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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href="http://www.cdcfah.com/cp/third-gdxt_psxt/">排水系統(tǒng)</a>?西雙版納鋁塑PPR管材廠家歡迎來(lái)電云南金諾達(dá)管業(yè)供應(yīng)</p><div id="c3qbyaw" class="leftbox clearfix"><h1>西雙版納鋁塑PPR管材廠家歡迎來(lái)電云南金諾達(dá)管業(yè)供應(yīng)</h1><div id="fqcykbs" class="proBig"><div id="nm7ardp" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/12/10/17/637115966736150090_ynjnd_3224913.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2qctkwn" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/12/10/17/637115966736150090_ynjnd_3224913.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ujq8k38" 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>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>西雙版納鋁塑PPR管材廠家</p><p><span>***更新：</span>2020-05-25 07:30:28</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="t7zubcy" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南金諾達(dá)管業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>李丹</p><p><span>郵箱: </span>1923146905@qq.com</p><p><span>電話: </span>13888159527</p><p><span>傳真: </span>0871_67392876</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0871-67392876</p><p><span>地址: </span>昆明市官渡區(qū)昌宏路中林建材城H區(qū)1幢1-2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="kjqsjfb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ynpgs2z" class="box"><p><p> ppr管低溫情況下脆性的原因 </p> <p> ppr管在現(xiàn)在的社會(huì)當(dāng)中應(yīng)用越來(lái)越普遍,因?yàn)樗陨淼膬?yōu)勢(shì)和特點(diǎn)讓它在管材行業(yè)當(dāng)中占據(jù)了很重要的地位，西雙版納鋁塑PPR管材廠家.是無(wú)規(guī)共聚聚丙烯，也就是我們所說(shuō)的Ⅲ型聚丙烯。它是由丙烯單體和少量乙烯單體在加熱、加壓和催化劑作用下無(wú)規(guī)共聚得到的。乙烯單體隨機(jī)地分布到丙烯長(zhǎng)鏈中，其中乙烯單體一般控制在3-5%之間。乙烯含量和乙烯與丙烯的聚合方式?jīng)Q定了其具有冷脆性的特點(diǎn)。在氣溫較低的情況下，尤其冬季施工過(guò)程中，西雙版納鋁塑PPR管材廠家，在低溫下柔韌性有所降低，西雙版納鋁塑PPR管材廠家，剛性增強(qiáng)，表現(xiàn)為脆性。在外力沖擊或過(guò)大的意外載荷作用下，可能出現(xiàn)管材直線開(kāi)裂等情況。給施工帶來(lái)不便。為此相關(guān)國(guó)家規(guī)范針對(duì)此問(wèn)題做出了明確的要求。在冬季施工時(shí)，應(yīng)注意建筑給水聚丙烯管道的低溫脆性的特點(diǎn)，并制定相應(yīng)施工方案。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西雙版納鋁塑PPR管材廠家" src="http://tyunfile.71360.com/UpLoadFile/2019/12/10/17/637115966736150090_ynjnd_3224913.jpg"></div><p> 下面是有關(guān)在對(duì)ppr管進(jìn)行施工和配裝的時(shí)候，我們需要特別留意的地方? </p> <p> 1 、工作的人員需通過(guò)3型聚丙烯類的管道安裝上的技術(shù)的培訓(xùn)。 </p> <p> 2 、ppr類的管材、件需要滿足有關(guān)設(shè)計(jì)和規(guī)定的要求，同時(shí)要帶上商品的說(shuō)明書(shū)以及品質(zhì)的合格的證書(shū)。 </p> <p> 3 、不能夠運(yùn)用存在有破損痕跡的物料。若發(fā)覺(jué)管道的品質(zhì)出現(xiàn)異常的狀況，需要在運(yùn)用前實(shí)行技術(shù)上的鑒別或者是復(fù)檢。 </p> <p> 4 、管道的系統(tǒng)的配裝過(guò)程里的開(kāi)口位置需要及時(shí)封住。 </p> <p> 5 、在施工及配裝的時(shí)候，需要復(fù)核冷及熱水管的壓力級(jí)別與運(yùn)用的環(huán)境。管道的標(biāo)記需要朝著外邊，處在凸顯的地方。 </p> <p> 6 、管道在進(jìn)行配裝的時(shí)候，不能存在軸向曲扭的情況，在穿過(guò)墻或者是樓板的時(shí)候，不適合強(qiáng)行去校正。對(duì)水聚丙烯了的管和別的金屬類的管道進(jìn)行平行鋪設(shè)的時(shí)候，需要存在特定的保護(hù)的間隔，凈距離不適合比一百毫米少，并且聚丙烯適合用于金屬類的管道的里側(cè)。 </p> <p> 7 、房子里的明裝的管道，適合于土建的粉飾作業(yè)結(jié)束之后施行，配裝之前，需要幫助土建準(zhǔn)確的預(yù)留或者是預(yù)埋孔洞以及套管。 </p> <p> 8 、管道在穿過(guò)樓板的時(shí)候，需配置上鋼類的套管，套管需比地層高出五十毫米，且要設(shè)有防水的措施。管道在穿過(guò)屋面的時(shí)候，需運(yùn)用嚴(yán)謹(jǐn)?shù)姆浪拇胧?</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西雙版納鋁塑PPR管材廠家" src="http://tyunfile.71360.com/UpLoadFile/2019/9/19/14/637044996848597744_ynjnd_6983508.jpg"></div><p> 冬季PPR管破裂預(yù)防措施 </p> <p> 1、PPR管為什么存在低溫脆性？ </p> <p> 答：PP-R是無(wú)規(guī)共聚聚丙烯，也就是我們所說(shuō)的Ⅲ型聚丙烯。它是由丙烯單體和少量乙烯單體在加熱、加壓和催化劑作用下無(wú)規(guī)共聚得到的。乙烯單體隨機(jī)地分布到丙烯長(zhǎng)鏈中，其中乙烯單體一般控制在3-5%之間。乙烯含量和乙烯與丙烯的聚合方式?jīng)Q定了其具有冷脆性的特點(diǎn)。在氣溫較低的情況下，尤其冬季施工過(guò)程中，管材在低溫下柔韌性有所降低，剛性增強(qiáng)，表現(xiàn)為脆性。在外力沖擊或過(guò)大的意外載荷作用下，可能出現(xiàn)管材直線開(kāi)裂等情況。 </p> <p> 2、PPR管材冷脆性在實(shí)際應(yīng)用中的表現(xiàn)形式 </p> <p> 答：當(dāng)環(huán)境溫度較低時(shí)，PPR管材韌性降低，表現(xiàn)為脆性，當(dāng)管材受到外力的沖擊或者重壓時(shí)，會(huì)出現(xiàn)直線開(kāi)裂現(xiàn)象，并且開(kāi)裂情況是由內(nèi)管開(kāi)始，向外管延伸。管材受到一個(gè)點(diǎn)的作用力造成的開(kāi)裂后，在瞬間內(nèi)，這種開(kāi)裂會(huì)沿著管材的軸線方向快速增長(zhǎng)，這個(gè)特性叫做快速裂紋增長(zhǎng)。另冬季管材在運(yùn)輸、在工地及安裝過(guò)程中因外力致傷，會(huì)在使用過(guò)程中出現(xiàn)脆性和韌性（輸送熱水時(shí)）爆管。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西雙版納鋁塑PPR管材廠家" src="http://tyunfile.71360.com/UpLoadFile/2019/12/10/17/637115966736305950_ynjnd_7614564.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/34352.html</p></div></div></div></div></div><div id="3vrdelr" 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