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class="pic"><img src="http://tyunfile.71360.com/UploadFile/zhongbumaoyi/637208360863818359/1589578.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lk89k8b" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/zhongbumaoyi/637208360863818359/1589578.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2tfsuyd" 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>昆明焊接金屬波紋管銷售,金屬波紋管</p><p><span>***更新：</span>2021-01-31 03:01:32</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="rwt2e9i" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南中埠貿(mào)易有限公司</a></p><p><span>聯(lián)系人：</span>鮑金和</p><p><span>郵箱: </span>278904655@qq.com</p><p><span>電話: </span>13987648233</p><p><span>傳真: </span>0871_68337105</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0871-68332755</p><p><span>地址: </span>云南省昆明市官渡區(qū)矣六鄉(xiāng)子君村金福地花園7幢902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="88ry7do" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3v8xwnf" class="box"><p><p> 金屬波紋管管道設(shè)計(jì)中溫度和壓力的設(shè)計(jì)方法 </p> <p> <br /> </p> <p> 金屬波紋管管道的應(yīng)力計(jì)算中所采取的溫度和壓力稱為計(jì)算溫度和壓力。 </p> <p> 由于金屬波紋管管道在絕大多數(shù)時(shí)間是在正常操作狀態(tài)下運(yùn)行，所以可將計(jì)算溫度和壓力取為操作溫度和操作壓力，但應(yīng)考慮到**不利的情況。當(dāng)設(shè)計(jì)溫度和設(shè)計(jì)壓力與操作溫度和操作壓力相差不大時(shí)，也可將計(jì)算溫度和計(jì)算壓力取為設(shè)計(jì)溫度和設(shè)計(jì)壓力。 </p> <p> 根據(jù)金屬波紋管的相關(guān)標(biāo)準(zhǔn)，對(duì)金屬波紋管的溫度和壓力的計(jì)算方法有如下規(guī)定，昆明焊接金屬波紋管銷售。 </p> <p> 對(duì)于無(wú)隔熱層管道，介質(zhì)溫度低于65℃時(shí)，取介質(zhì)溫度為計(jì)算溫度，介質(zhì)溫度等于或高于65℃時(shí)，昆明焊接金屬波紋管銷售，取介質(zhì)溫度的95%為計(jì)算溫度。 </p> <p> 對(duì)于有外隔熱層管道，除另有計(jì)算或經(jīng)驗(yàn)數(shù)據(jù)外，應(yīng)取介質(zhì)溫度為計(jì)算溫度，昆明焊接金屬波紋管銷售。管道應(yīng)留壓漿孔和溢漿孔;曲線孔道的波峰部位應(yīng)留排氣孔，在比較低部位宜留排水孔。昆明焊接金屬波紋管銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明焊接金屬波紋管銷售,金屬波紋管" src="http://tyunfile.71360.com/UploadFile/zhongbumaoyi/637208360863818359/1589578.jpg"></div><p> 在預(yù)應(yīng)力金屬波紋管的工程應(yīng)用中，預(yù)應(yīng)力梁截面和跨度較大，梁端距地面較高，預(yù)應(yīng)力金屬波紋管施工時(shí)存在以下難點(diǎn)： </p> <p> 1、預(yù)應(yīng)力梁內(nèi)設(shè)計(jì)鋼筋較多，綁扎密集復(fù)雜，與預(yù)應(yīng)力波紋管相互干涉，波紋管不易準(zhǔn)確就位。 </p> <p> 2、預(yù)應(yīng)力金屬波紋管壁厚較薄，在安裝固定時(shí)容易變形;波紋管分段安裝，在接頭處容易脫開(kāi)。致使?jié)仓炷習(xí)r水泥漿進(jìn)入波紋管孔道而堵管。 </p> <p> 3、排氣孔安裝后，由于其他工序的干擾，造成排氣孔變形、開(kāi)裂或被堵塞，排氣孔失效，從而致使預(yù)應(yīng)力金屬波紋管孔道灌漿不密實(shí)。 </p> <p> 4、預(yù)應(yīng)力梁內(nèi)鋼筋、預(yù)應(yīng)力金屬波紋管孔道及固定支架等縱橫交錯(cuò)，混凝土澆筑時(shí)振搗棒不易插入，容易碰撞鋼筋和波紋管，造成預(yù)應(yīng)力筋移位等不安全因素。 </p> <p> 5、預(yù)應(yīng)力筋張拉時(shí)，張拉程序和各階段張拉控制應(yīng)力由人工控制，容易造成控制應(yīng)力不準(zhǔn)確，致使預(yù)應(yīng)力建立出現(xiàn)偏差。昆明焊接金屬波紋管銷售金屬波紋管主要可分成液壓成形、機(jī)械脹形、橡膠成形、旋壓成形、滾壓成形、焊接成形和電沉積成形等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明焊接金屬波紋管銷售,金屬波紋管" src="http://tyunfile.71360.com/UploadFile/zhongbumaoyi/637208360862441406/1703344.jpg"></div><p> 金屬波紋管安裝工作的重要性 </p> <p> 金屬波紋管安裝不好的影響在后張法預(yù)應(yīng)力混凝土結(jié)構(gòu)的施工中，金屬波紋管的安裝位置準(zhǔn)確性及其重要，在遇到金屬波紋管與普通鋼筋相互影響、***的時(shí)候，必須適當(dāng)調(diào)整普通鋼筋的位置，確保波紋管能夠按設(shè)計(jì)的位置安裝到位。 </p> <p> 金屬波紋管安裝必須嚴(yán)格按照設(shè)計(jì)要求的曲線要素安設(shè)，且固定牢固，一般采用“井”字形架立鋼筋加以固定。 </p> <p> 預(yù)應(yīng)力鋼筋安裝不準(zhǔn)確，會(huì)嚴(yán)重影響金屬波紋管的安裝質(zhì)量，必須及時(shí)的做好調(diào)整。 </p><p> 預(yù)應(yīng)力金屬波紋管孔道施工中的問(wèn)題 </p> <p> <br /> </p> <p> 預(yù)應(yīng)力金屬波紋管制造工作進(jìn)行的過(guò)程中，是在對(duì)卷管機(jī)加以一定程度的應(yīng)用的基礎(chǔ)上將冷軋鋼本身帶有的壓波螺旋進(jìn)行咬合之后形成的。預(yù)應(yīng)力金屬波紋管的直徑一般情況之下是需要和鋼絞線的線束相互配合在一起的。 </p> <p> 除此之外，在施工相關(guān)工作進(jìn)行的過(guò)程中需要注意到的問(wèn)題是，預(yù)應(yīng)力金屬波紋管需要輕拿輕放，嚴(yán)禁在施工相關(guān)工作進(jìn)行的過(guò)程中在地面之上拖拽預(yù)應(yīng)力金屬波紋管，當(dāng)預(yù)應(yīng)力金屬波紋管吊裝工作進(jìn)行的過(guò)程中，也是不可以使用一根繩子展開(kāi)捆扎起吊工作的，因?yàn)檫@樣安全性是難以得到保證的，容易引發(fā)預(yù)應(yīng)力金屬波紋管脫落問(wèn)題。當(dāng)針對(duì)預(yù)應(yīng)力金屬波紋管展開(kāi)室外保管工作的過(guò)程中，時(shí)間這一個(gè)因素應(yīng)當(dāng)?shù)玫接行У目刂?，時(shí)間不可以過(guò)長(zhǎng)，也是不可以直接將其放置在地面之上的，需要在對(duì)防雨和防曬帆布加以一定程度的應(yīng)用高的基礎(chǔ)上展開(kāi)覆蓋工作。液壓成型的生產(chǎn)過(guò)程？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明焊接金屬波紋管銷售,金屬波紋管" src="http://tyunfile.71360.com/UploadFile/zhongbumaoyi/637208360863818359/217479.jpg"></div><p> 金屬波紋管配套使用材料的質(zhì)量要求 </p> <p> 預(yù)應(yīng)力混凝土技術(shù)在工程建設(shè)中得到了非常普遍的應(yīng)用，在金屬波紋管的工程應(yīng)用中，需要注意其配套使用的材料的質(zhì)量要求。金屬波紋管配套使用的材料，主要有鋼絞線、錨具和金屬波紋管。 </p> <p> 金屬波紋管配套使用的鋼絞線的要求 </p> <p> 1、工程預(yù)應(yīng)力筋設(shè)計(jì)采用**度、低松弛鋼絞線，強(qiáng)度級(jí)別為1860MPa，直徑為15.20mm，其質(zhì)量應(yīng)符合GB/T5224—2014《預(yù)應(yīng)力混凝土用鋼絞線》的要求。 </p> <p> 2、鋼絞線在運(yùn)輸、儲(chǔ)存過(guò)程中應(yīng)注意成品保護(hù)，防止鋼絞線受損。預(yù)應(yīng)力鋼絞線應(yīng)妥善儲(chǔ)存在干燥平整的地方，底部墊有墊木，上面要采取防雨、防霧措施，錨具、配件要存放在室內(nèi)。 </p> <p> 3、預(yù)應(yīng)力鋼絞線的下料長(zhǎng)度按施工圖，并結(jié)合錨固形式及張拉設(shè)備要求的工作長(zhǎng)度進(jìn)行確定。 </p> <p> 工程中一端張拉按曲線孔道長(zhǎng)度加800mm，兩端張拉按曲線孔道長(zhǎng)度加1600mm。根據(jù)計(jì)算長(zhǎng)度，編制預(yù)應(yīng)力筋下料表。預(yù)應(yīng)力鋼絞線下料應(yīng)采用砂輪切割機(jī)進(jìn)行切割，切口應(yīng)與鋼絞線中心線垂直。預(yù)應(yīng)力鋼絞線下料后，貼上標(biāo)簽，然后收盤分類堆放。金屬波紋管安裝要求？昆明焊接金屬波紋管銷售</p><p style="text-indent:25px">梁底模安裝后，經(jīng)檢查合格，鋼筋骨架綁扎合格后，方可安裝波紋管;昆明焊接金屬波紋管銷售</p><p> 金屬波紋管常見(jiàn)的失效形式有以下5種情況 </p> <p> <br /> </p> <p> 腐蝕斷裂和整體脆化失效。 </p> <p> 這種失效形式主要是由于介質(zhì)的腐蝕造成的。奧氏體不銹鋼**易產(chǎn)生晶間腐蝕，當(dāng)金屬波紋管換熱器用在含氯離子高和含硫化氫等介質(zhì)時(shí)，就出現(xiàn)了波紋換熱管腐蝕斷裂。實(shí)際生產(chǎn)中已發(fā)現(xiàn)，有的金屬波紋管產(chǎn)生了整體脆化。 </p> <p> 金屬波紋管與管道接頭連接處開(kāi)裂。 </p> <p> 金屬波紋管接頭處的環(huán)焊縫，由于焊接工藝和焊接技術(shù)水平的差異，焊縫質(zhì)量難以保證，從而造成此處開(kāi)裂。 </p> <p> 對(duì)照上述5種情況，基本可以確定該金屬波紋管與管道連接焊縫質(zhì)量不過(guò)關(guān)，連接處發(fā)生開(kāi)裂導(dǎo)致泄漏。經(jīng)查證，此處焊縫焊接是項(xiàng)目公司未按要求進(jìn)行的，因此，項(xiàng)目工程部必須安裝要求進(jìn)行安裝和使用金屬波紋管。昆明焊接金屬波紋管銷售</p><p 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