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class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/second-wjgj_guanjianbi/">管件</a>?<a href="http://www.cdcfah.com/cp/third-guanjianbi_fengtou/">封頭</a>?沈陽(yáng)封頭信息推薦河北長(zhǎng)洪管業(yè)供應(yīng)</p><div id="eiekgma" class="leftbox clearfix"><h1>沈陽(yáng)封頭信息推薦河北長(zhǎng)洪管業(yè)供應(yīng)</h1><div id="mesguq2" class="proBig"><div id="2omkqea" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076676513966_jiazong01_1139235.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ookqmi2" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076676513966_jiazong01_1139235.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="y4s2cky" 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>河北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>沈陽(yáng)封頭</p><p><span>***更新：</span>2020-05-23 12:28:00</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="owsy2so" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北長(zhǎng)洪管業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>賈世豪</p><p><span>郵箱: </span>2047452166@qq.com</p><p><span>電話: </span>17363075791</p><p><span>傳真: </span>0317_5538516</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0317-5538516</p><p><span>地址: </span>河北省滄州市孟村回族自治縣孟村鎮(zhèn)二街</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="esywciw" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="se2agk2" class="box"><p><span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 23241-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">灌溉用塑料管材和管件基本參數(shù)及技能條件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 23682-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">制冷體系和熱泵軟管件，沈陽(yáng)封頭，沈陽(yáng)封頭、隔震管和脹大接頭要求、規(guī)劃與安裝</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 24452-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">修建物內(nèi)排污，沈陽(yáng)封頭、廢水（高、低溫）用氯化聚氯乙烯（<span>PVC-C</span>）管材和管件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 17457-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">球墨鑄鐵管和管件水泥砂漿內(nèi)襯</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 24596-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">球墨鑄鐵管和管件聚氨酯涂層</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 24672-2009 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">噴灌用金屬薄壁管及管件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 5135.19-2010 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">主動(dòng)噴水滅火體系第<span>19</span>部分：塑料管道及管件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 26002-2010 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">燃?xì)膺\(yùn)送用不銹鋼波紋軟管及管件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 26120-2010 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">低壓不銹鋼螺紋管件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB/T 26081-2010 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">污水用球墨鑄鐵管、管件和附件</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB 26255.2-2010 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">燃?xì)庥镁垡蚁┕艿荔w系的機(jī)械管件第<span>2</span>部分：公稱外徑大于<span>63mm</span>的管材用鋼塑轉(zhuǎn)換管件</span> </p> <span> </span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽(yáng)封頭" src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076676513966_jiazong01_1139235.jpg"></div><span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;mso-outline-level:2;"> <b><span style="font-family:宋體;font-size:18pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">其它</span></b> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">GB150-1998</span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">厚度的界說(shuō)</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(1) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">核算厚度<span>δ</span></span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">是按各章公式核算得到的厚度。需求時(shí)，尚應(yīng)計(jì)入其他載荷所需厚度。</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(2) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">規(guī)劃厚度<span>δd</span></span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">是核算厚度<span>δ</span>與腐蝕裕量<span>C2</span>之和。</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(3) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">名義厚度<span>δn</span></span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">是規(guī)劃厚度<span>δd</span>加上鋼材厚度負(fù)誤差<span>C1</span>后向上圓整至鋼材規(guī)范規(guī)范的厚度。即標(biāo)示在圖樣上的厚度。</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(4) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">有用厚度<span>δe</span></span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">是名義厚度<span>δn</span>減去腐蝕裕量<span>C2</span>和鋼材厚度負(fù)誤差<span>C1</span>的厚度</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(5) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">各種厚度的聯(lián)系如圖</span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">(6) </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">投料厚度<span>(</span>即毛坯厚度<span>)</span></span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">根據(jù)<span>GB150---1998</span>第<span>10</span>章和各種厚度聯(lián)系圖<span>:</span></span> </p> <span> </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;">δs=δ +C1+C2+Δ1(</span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;">厚度第（di）一次規(guī)劃圓整值<span>)+C3(</span>加工減薄量<span>)+(</span>厚度第<span>2</span>次制作圓整值<span>)</span></span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽(yáng)封頭" src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076679948936_jiazong01_7878057.jpg"></div><span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;mso-outline-level:1;"> <b><span style="font-family:宋體;font-size:24pt;mso-bidi-font-family:宋體;mso-font-kerning:18.0pt;">封頭</span></b> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;"> </span> </p> <span> </span> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">封頭是指用以封閉容器端部使其表里介質(zhì)隔離的元件，又稱端蓋。圓筒形容器的封頭一般都是迥轉(zhuǎn)殼體。按封頭外表的形狀可分為凸形、錐形、平板形和組合形。凸形封頭是指外外表形狀為凸面的封頭，如半球形、橢圓形、碟形和無(wú)折邊球形封頭等。有的氣瓶選用凸面向內(nèi)的組合形底封頭，既可確保強(qiáng)度，又能滿足安全使用的需求。</span> </p> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;"> <br /> </p> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;"> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-pagination:widow-orphan;"> <br /> </p> <p align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"> <span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">封頭是容器的一個(gè)部件，是以焊接方式銜接筒體。（如下圖）根據(jù)幾何形狀的不同，可分為球形、橢圓形、碟形、球冠形、錐殼平和蓋等幾種，其間球形、橢圓形、碟形、球冠型封頭又統(tǒng)稱為凸形封頭。在焊接上分為對(duì)焊封頭，承插焊封頭。用于各種容器設(shè)備，如<span><a target="_blank"><span style="color:blue;"><span>儲(chǔ)罐</span></span></a></span>、<span><a target="_blank"><span style="color:blue;"><span>換熱器</span></span></a></span>、塔、<span><a target="_blank"><span style="color:blue;"><span>反應(yīng)釜</span></span></a></span>、鍋爐和分離設(shè)備等。原料有<span><a target="_blank"><span style="color:blue;"><span>碳鋼</span></span></a></span>（<span>A3</span>、<span>20#</span>、<span>Q235</span>、<span>Q345B</span>、<span>16Mn</span>等）、不銹鋼（<span>304</span>、<span>321</span>、<span>304L</span>、<span>316</span>、<span>316L</span>等）、合金鋼（<span>15Mo3 15CrMoV 35CrMoV 45CrMo </span>）、鋁、鈦、銅、鎳及鎳合金等。</span> </p> <p align="left" style="margin:0cm 0cm 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