武漢高精度數(shù)控車床封頭服務(wù)為先河北長洪管業(yè)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="基本要求我國現(xiàn)有的封頭規(guī)范，是按結(jié)構(gòu)型式（橢圓形、碟形、錐形）、成形方式（沖壓、旋壓）的不同，而分別制訂的，這不*形成不同規(guī)范封頭質(zhì)量要求不完全共同的不合理現(xiàn)象，同時也給規(guī)范封頭的選用、規(guī)范的修訂帶來某些困難。第（di）一、以往的封頭標準都"><meta name="keywords" content="武漢高精度數(shù)控車床封頭"><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 http-equiv="Cache-Control" 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class="leftbox clearfix"><h1>武漢高精度數(shù)控車床封頭服務(wù)為先河北長洪管業(yè)供應(yīng)</h1><div id="f9f7vhp" class="proBig"><div id="dfvbnp5" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076679948936_jiazong01_7878057.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ttn1bvd" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076679948936_jiazong01_7878057.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nxv9jhh" 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>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>武漢高精度數(shù)控車床封頭</p><p><span>***更新：</span>2020-06-20 14:19:11</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="llt9rl5" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北長洪管業(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: </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="zb3rntb" class="page-proshow02"><p class="title">詳細說明</p><div id="r9vd7nj" class="box"><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;mso-outline-level:2;"> <b><span style="font-family:宋體;font-size:18pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">基本要求</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;">我國現(xiàn)有的封頭規(guī)范，是按結(jié)構(gòu)型式（橢圓形、碟形、錐形）、成形方式（沖壓、旋壓）的不同，而分別制訂的，這不*形成不同規(guī)范封頭質(zhì)量要求不完全共同的不合理現(xiàn)象，同時也給規(guī)范封頭的選用、規(guī)范的修訂帶來某些困難。</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;"> 第（di）一、以往的封頭標準都是*與<span> GB150</span>《鋼制壓力容器》配套的，即只考慮了按規(guī)矩規(guī)劃的封頭的制作、檢驗與驗收要求，而我國早在<span>1995</span>年就完結(jié)<span>GB150</span>與<span>JB4732</span>了壓力容器基礎(chǔ)規(guī)范的雙軌制（與《鋼制壓力容器分析規(guī)劃規(guī)范》），缺少與分析規(guī)劃相配套的封頭規(guī)范，武漢高精度數(shù)控車床封頭，不能不說是我國壓力容器規(guī)范化作業(yè)的一大缺憾。</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;">第二，武漢高精度數(shù)控車床封頭，<span>GB150</span>屬強制性規(guī)范，而根據(jù)<span>GB150</span>編制并與之配套的封頭規(guī)范卻是輔導(dǎo)（引薦）性的，武漢高精度數(shù)控車床封頭，這顯然是不合理的，也難以確保封頭這一重要受壓元件的質(zhì)量。</span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢高精度數(shù)控車床封頭" src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076679948936_jiazong01_7878057.jpg"></div><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;">13 GB50253-2003 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">輸油管道工程規(guī)劃規(guī)范</span> </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;">14 GB/T50265-1997 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">泵站規(guī)劃規(guī)范<span> ×</span></span> </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;">15 GB50316</span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">－<span>2000<a target="_blank"><span style="color:blue;"><span>工業(yè)金屬</span></span></a></span>管道規(guī)劃規(guī)范</span> </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;">16 GB50029-2003 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">壓縮空氣站規(guī)劃規(guī)范</span> </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;">17 GB50074-2002<a target="_blank"><span style="color:blue;"><span>石油庫規(guī)劃規(guī)范</span></span></a>GBJ74</span> </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;">18 HG20695</span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">－<span>1987 </span>化工管道規(guī)劃規(guī)范<span> HGJ8</span></span> </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;">19 HG20519-1992 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">化工工藝規(guī)劃施工圖內(nèi)容和深度統(tǒng)一規(guī)則</span> </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;">20 HG20546-1992 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">化工設(shè)備設(shè)備安置規(guī)劃規(guī)則<span> *</span></span> </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;">21 HG/T20549-1998 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">化工設(shè)備管道安置規(guī)劃規(guī)則<span> *</span></span> </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;">22 HG/T20645-1998 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">化工設(shè)備管道機械規(guī)劃規(guī)則<span> *</span></span> </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;">23 HG/T20646-1999 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">化工設(shè)備管道資料規(guī)劃規(guī)則<span> *</span></span> </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;">24 HG20581-1998 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">鋼制化工容器資料選用規(guī)則</span> </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;">25 HG20582-1998 </span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">鋼制化工容器強度核算規(guī)則</span> </p> </span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢高精度數(shù)控車床封頭" src="http://tyunfile.71360.com/UpLoadFile/2019/6/21/9/636967076679636666_jiazong01_2766374.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:3;"> <b><span style="font-family:宋體;font-size:13.5pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">資料分析</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;">容器內(nèi)徑<span>Di=4000mm</span>、核算壓力<span>Pc=0.4MPa</span>、規(guī)劃溫度<span>t=50℃</span>、封頭為規(guī)范橢圓形封頭、資料為<span>16MnR</span>（規(guī)劃溫度才資料許用應(yīng)力為<span>170MPa</span>）、鋼材負誤差不大于<span>0.25mm</span>且不超越名義厚度的<span>6%</span>、腐蝕裕量<span>C2=1mm</span>、封頭拼焊的<span><a target="_blank"><span style="color:blue;"><span>焊接接頭系數(shù)</span></span></a>?=1</span>。求橢圓封頭的核算厚度、規(guī)劃厚度和名義厚度。</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;">KpDi</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;">核算厚度<span>δ=----------------=4.73mm</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;">2[σ]tΦ-0.5pc</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;">核算厚度<span>δd=δ + C2=4.73+1=5.73mm</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;">考慮規(guī)范橢圓封頭有用厚度<span>δe</span>應(yīng)不小于封頭內(nèi)徑<span>Di</span>的<span>0.15%</span>，有用厚度<span>δe=0.15%Di=6mm</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;">δe>δd</span><span style="font-family:宋體;font-size:12pt;mso-bidi-font-family:宋體;mso-font-kerning:0pt;">、<span>C1=0</span>、<span>C2=1</span>、名義厚度<span>δn=δe+C1+C2=6+0+1=7mm</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;">考慮鋼材規(guī)范規(guī)范厚度作了上浮<span>1mm</span>的厚度第（di）一次規(guī)劃圓整值<span>△1=1</span>，故取<span>δn=8mm</span>。</span> </p> <span> </span></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/326836.html</p></div></div></div></div></div><div id="fbbjzp9" class="page-right twoColRt"><div id="1r17lnb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bnzffn5" 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(yīng)" class="vcenter" 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