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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sccsjjc/637284373847949219/5276193.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aclken9" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sccsjjc/637284373847949219/5276193.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ouos8ma" 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>成都市政管道康泰總經(jīng)銷,康泰</p><p><span>***更新：</span>2020-11-10 08:13:03</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="88aj9yc" 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="hos3lm6" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8ekjq2d" class="box"><p><p> PVC-U排水管道系列:生產(chǎn)標(biāo)準(zhǔn)：GB/T5836.1-2006(管材) GB/T5836.2-2006(管件) </p> <p> 該系列產(chǎn)品選用質(zhì)量聚氯乙烯樹脂為主要原料，添加適當(dāng)加工助劑，經(jīng)捏合、擠塑注塑制成管材管件。以聚氯乙烯樹脂為載體，在減弱樹脂分子鏈間的引力時(shí)具有感溫準(zhǔn)確、定時(shí)熔融、迅速吸收添加劑的有效成分等優(yōu)良特性，同時(shí)，采用世界名優(yōu)品牌德國“熊牌”復(fù)合型熱穩(wěn)定劑，在樹脂受到高溫與熔融的過程中可捕捉、***、吸收、中和氯化氫的脫出，與聚烯結(jié)構(gòu)進(jìn)行雙鍵加成反應(yīng)，置換分子中活潑和不穩(wěn)定的氯原子，成都市政管道康泰總經(jīng)銷。從而有效科學(xué)的控制樹脂在熔融狀態(tài)下的催化降解和氧化分解。 </p> <p> <br /> </p> <p> <br /> 踐行“市場***，成都市政管道康泰總經(jīng)銷，成都市政管道康泰總經(jīng)銷、誠信務(wù)實(shí)、創(chuàng)新***、價(jià)值共贏”的**價(jià)值觀。成都市政管道康泰總經(jīng)銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都市政管道康泰總經(jīng)銷,康泰" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637284373847949219/5276193.png"></div><p> 應(yīng)用比較普遍的方法有如下兩種: </p> <p> 1.數(shù)值法計(jì)算波紋管應(yīng)力 </p> <p> 假定波紋管的全部波紋都處于同一條件下，在計(jì)算時(shí)只研究波紋管波紋的單個(gè)半波。這樣，在研究中就不考慮端部波紋，雖然端部波紋的邊界條件與中間波紋有所不同。數(shù)值法是根據(jù)E.列斯涅爾對(duì)于變壁厚回轉(zhuǎn)薄殼產(chǎn)生軸向?qū)ΨQ變形時(shí)所列的非線性方程來解的。在推導(dǎo)E.列斯涅爾方程時(shí)，應(yīng)用了薄殼理論的一般假定，其中包括:與環(huán)殼曲率主半徑相比厚度很小的假定;材料的均一性和各向同性的假定。采用上述假定也會(huì)給計(jì)算帶來一定的誤差。因?yàn)樵谥圃觳y管時(shí)，管坯的軋制，拉深和隨后的波紋塑性成形會(huì)造成材料力學(xué)性能上的各向異性和不均勻性。 </p> <p> 2.美國EJMA 應(yīng)力計(jì)算方法 </p> <p> 波紋管的有效面積計(jì)算 </p> <p> 有效面積是波紋管的基本性能參數(shù)之一，它表征波紋管將壓力轉(zhuǎn)換為集中力的能力，在利用波紋管把壓力變成集中力輸出的場合，有效面積就是一個(gè)重要參數(shù)。 </p> <p> <br /> 成都市政管道康泰總經(jīng)銷康泰集團(tuán)堅(jiān)持創(chuàng)新驅(qū)動(dòng)，導(dǎo)入卓越績效管理與“阿米巴”經(jīng)營模式，***實(shí)施內(nèi)部市場化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都市政管道康泰總經(jīng)銷,康泰" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637284373908027344/9807112.png"></div><p> <br /> </p> <p> <br /> </p> <p> 波紋管上的應(yīng)力是由系統(tǒng)中的壓力和波紋管變形所產(chǎn)生的。壓力在波紋管上產(chǎn)生環(huán)(周向)應(yīng)力，而在波的側(cè)壁、波谷和波峰處產(chǎn)生徑向的薄膜和彎曲應(yīng)力。不能抗彎的薄殼有時(shí)稱為薄膜，忽略彎曲而算得的應(yīng)力則稱為薄膜應(yīng)力。波紋管變形時(shí)產(chǎn)生徑向薄膜應(yīng)力和彎曲應(yīng)力。波紋管在工作時(shí)，有的承受內(nèi)壓，有的承受外壓，例如波紋膨脹節(jié)和金屬軟管在多數(shù)情況下其波紋管承受內(nèi)壓，而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，波紋管承受外壓的能力一般情況下高于耐內(nèi)壓能力。隨著波紋管的廣泛應(yīng)用，人們對(duì)波紋管的應(yīng)力進(jìn)行大量的分析研究和實(shí)驗(yàn)驗(yàn)證工作，提出了許多供工程設(shè)計(jì)使用的計(jì)算公式、計(jì)算程序和圖表。但是，有的方法由于圖表或程序繁復(fù)使用不方便，有的方法假設(shè)條件不是過于簡化就是過于理想，難以保證使用上的安全可靠，不少方法未能為工程界所接受。因此，真正符合實(shí)用要求的方法為數(shù)不多。 </p><p> 折疊位移特性金屬波紋管及彈性元件中某一特定點(diǎn)(自由端或中心)的位置變化。按照其運(yùn)動(dòng)軌跡，可分為線位移和角位移。在外界載荷作用下，金屬波紋管可能產(chǎn)生軸向位移、角向位侈及橫向位移。 </p> <p> 金屬波紋管及彈性元件在額定載荷作用下所引起的位移值，也就是它們?cè)谡Ｊ褂脳l件下允許產(chǎn)生的工作位移。 </p> <p> 各類彈性元件在工作瞬間或試驗(yàn)期間允許超過額定位移的承受能力。在發(fā)生超載位移時(shí)，彈性元件不應(yīng)發(fā)生損壞、失效、失穩(wěn)等情況。對(duì)于儀表彈性敏感元件，超載位移一般限定在額定位移的125%，工程中使用的波紋管類組件，應(yīng)根據(jù)工程條件和安全程度確定。康泰先后獲得“全國實(shí)施卓越績效模式先進(jìn)企業(yè)、全國實(shí)施卓越績效模式特別獎(jiǎng)”等榮譽(yù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都市政管道康泰總經(jīng)銷,康泰" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637284373877041016/7629864.png"></div><p> 靈敏度折疊有效面積對(duì)于實(shí)現(xiàn)壓力一力或力一壓力轉(zhuǎn)換的彈性元件，還有一個(gè)重要的功能指標(biāo)是有效面積。有效面積是指彈性元件在單位壓力作用下，當(dāng)其位移為零時(shí)所能轉(zhuǎn)換成集中力的大小。折疊使用壽命彈性元件下作時(shí)有兩種狀態(tài);一種是在一定的載荷和位移情況下工作，并保持載荷、位移始終不變或很少變化，稱為靜態(tài)工作;另一種使用情況是載荷和位移不斷周期往復(fù)交替變化.元件處于循環(huán)工作狀態(tài)。由于工作狀態(tài)的不同，元件損壞或失效的模式也不同。儀表彈性敏感元件工作在彈性范圍內(nèi)，基本上處于靜態(tài)工作狀態(tài)，使用壽命很長，一般達(dá)到數(shù)萬次到數(shù)十萬次。工程中應(yīng)用的波紋管類組件，有時(shí)工作在彈塑性范圍或交變應(yīng)力狀態(tài)，壽命只有成百上干次。元件在循環(huán)工作時(shí)必須給定許用工作壽命，規(guī)定循環(huán)次數(shù)、時(shí)間和頻率。 </p> <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。特別研制**行業(yè)生態(tài)升級(jí)的**技術(shù)——“穩(wěn)凈”**配方，實(shí)現(xiàn)了產(chǎn)品環(huán)保節(jié)能新突破，技術(shù)水平國內(nèi)**。成都市政管道康泰總經(jīng)銷</p><p style="text-indent:25px">康泰致力于產(chǎn)品生態(tài)與整體解決方案。成都市政管道康泰總經(jīng)銷</p><p> 顏色特點(diǎn)>PPR水管為什么顏色不一樣? </p> <p> 廠家供應(yīng)的PPR顆粒有不同顏色，比如灰色等，但是多數(shù)公司都是購入透明原料，不同顏色是加入了不同顏色的色母料。 </p> <p> >PPR水管顏色和質(zhì)量有必然的聯(lián)系么? </p> <p> 沒有。但是白色PPR避光檢測(cè)不合格的情況要多些，而灰色、綠色則不存在這些問題。另外受生活習(xí)慣影響，北方多用白色PPR管材，而南方則灰色PPR管較多。 </p> <p> >PPR水管是分冷水管與熱水管如何區(qū)分? </p> <p> ·PPR管是分冷水管與熱水管的，其區(qū)別是冷水管上有藍(lán)色標(biāo)識(shí)線，熱水管是紅色線。 </p> <p> 另外，PPR管道上面有諸如 S5 S4 S3.2 S2.5等標(biāo)識(shí)，一般S5 S4為冷水管，壁厚較薄，S3.2 S2.5為熱水管，壁厚較厚。 </p> <p> <br /> 成都市政管道康泰總經(jīng)銷</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1929911.html</p></div></div></div></div></div><div id="xznm587" class="page-right twoColRt"><div id="278xj3f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u3r3bco" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="gimqxgc" class="recomPic likePro"><a 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