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V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://www.yy4080ys.com/">91精品国产自在现不卡,午夜免费福利小电影,91色在线 | 国产,欧美A视频</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><output id="bf54f"><em id="bf54f"><rt id="bf54f"></rt></em></output><em id="bf54f"></em><em id="bf54f"></em><strong id="bf54f"><pre id="bf54f"></pre></strong><rt id="bf54f"><noscript id="bf54f"><pre id="bf54f"></pre></noscript></rt><thead id="bf54f"><cite id="bf54f"><center id="bf54f"></center></cite></thead><ol id="bf54f"><legend id="bf54f"><meter id="bf54f"></meter></legend></ol><form id="bf54f"><meter id="bf54f"></meter></form><rt id="bf54f"></rt><del id="bf54f"></del><s id="bf54f"><tr id="bf54f"><meter id="bf54f"></meter></tr></s><div id="bf54f"><var id="bf54f"></var></div><noscript id="bf54f"></noscript><th id="bf54f"></th><sup id="bf54f"></sup><fieldset id="bf54f"></fieldset><sup id="bf54f"></sup><track id="bf54f"></track><tr id="bf54f"></tr><small 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id="nmhsj"></progress><object id="nmhsj"><tbody id="nmhsj"><noframes id="nmhsj"></noframes></tbody></object><pre id="nmhsj"></pre></div> <div id="orjhetf" class="all_head"> <div id="wuwlilq" class="all_head_left"> <a href="http://www.yy4080ys.com"> <img alt="北極信息港" src="/images/logo.png" /> </a> </div> <div id="aazcttp" class="clr"></div> </div> <link href="/css/zsy1212.css" type="text/css" rel="stylesheet" /> <link href="/css/common.css" type="text/css" rel="stylesheet" /> <div id="wrelywv" class="w960"> <div class="dnxnzgk" id="Tab1" style="float:right"> <div id="ykazhii" class="Menubox"> <ul><li id="sch0" onclick="fSelSch(0)" class="hover">搜索引擎</li><li id="sch1" onclick="fSelSch(1)">北極信息港</li></ul> </div> <div id="fjnritx" class="Contentbox"> <ul> <li id="rsyqnvz" class="li01"> <form id="frmSchFull" onsubmit="return baidu(this)"> <span id="airkmqw" class="li02"> <input name="word" type="text" class="Sinput"> </span> <input type="hidden" name="s" value="0"> <input type="submit" name="Submit" class="Sbuttom" value="搜索"> <input name="tn" type="hidden" value="bds"> <input name="cl" type="hidden" value="3"> <input name="ct" type="hidden"> <input name="si" type="hidden" value="cjjhb.com"> </form> </li> </ul> </div> </div> </div>    <div class="fgjcbsk" id="showmsg_head"> </div> <div id="cvprbgr" class="all_now_position" style="margin-top: 10px;"> 您所在的位置:<a href="http://www.yy4080ys.com">總站首頁(yè)</a> ><a href="http://www.yy4080ys.com">北極信息港</a> >球墨鑄鐵管免費(fèi)拿樣 </div>  <div class="eyjysjn" id="showmsg">  <div class="htmvksz" id="showmsg_left"> <div class="uqmuepd" id="showmsg_title"> <h1>球墨鑄鐵管免費(fèi)拿樣</h1> </div> <div id="yxijhox" class="showmsg_contentall"> <div class="kiebbfi" id="showmsg_content_top"> </div> <div class="eorokmd" id="showmsg_companymsg"> <ul> <li> 公司:<strong><a href="/meilinqmztg" target="_blank"> 華夏聯(lián)豐鑄造(深圳市梅林街道分公司)</a></strong> </li> <li>價(jià)格:電聯(lián)</li> <li id="lxr">聯(lián)系人:高經(jīng)理</li> <li>更新時(shí)間:2025-08-03 06:13:33<span id="ovopdcg" class="weather"> ip歸屬地：深圳，天氣：暴雨，溫度：25-30</span> 瀏覽次數(shù):2</li> <li>所在地:梅林 </li> <li>標(biāo)題:<strong><a href="#">球墨鑄鐵管免費(fèi)拿樣</a></strong></li> <li> 來(lái)源: <span>qmztg</span> </li> <div id="aqyqifu" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a> <a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a> <a href="#" class="bds_tqq" data-cmd="tqq" title="分享到騰訊微博"></a> <a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網(wǎng)"></a> <a href="#" class="bds_weixin" data-cmd="weixin" title="分享到wx"></a> </div> </ul> <div id="eanheex" class="tu"> <div id="llqylmq" class="t_left1213"> <div id="afphjpg" class="pimgbig"><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220617512219.jpg" id="pimgbig" alt="球墨鑄鐵管免費(fèi)拿樣"></div>  <div id="hkpqsav" class="playvideo"><img src="/images/play.png" /></div> <div id="yclblbt" class="pvideo"> <video id="pmp4" controls="" controlslist="nodownload" src="http://img.cjjhb.com/pub_soft/185/1338_10.mp4" type="video/mp4" preload="none"></video> </div>  <ul class="pimgsmall"> <li><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220617512219.jpg" alt="球墨鑄鐵管免費(fèi)拿樣"></li> <li><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618174985.jpg" alt="球墨鑄鐵管免費(fèi)拿樣"></li> <li><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220617430470.jpg" alt="球墨鑄鐵管免費(fèi)拿樣"></li> </ul> </div> </div> </div> <div class="objeeqx" id="showmsg_content"> <div id="lhteozk" class="new-cont-box new-cont-box-300"> <div id="alqohzy" class="new-info-box"> <pre> <hr> <div id="eixwxwv" class="ty-tips1212">以下是:深圳市梅林街道球墨鑄鐵管免費(fèi)拿樣的產(chǎn)品參數(shù) </div> <div id="zolpnhv" class="newcanshubox"> <table><tbody><tr><th colspan="2">產(chǎn)品參數(shù)</th></tr><tr><th>產(chǎn)品價(jià)格</th><td>電議</td></tr><tr><th>發(fā)貨期限</th><td>電議</td></tr><tr><th>供貨總量</th><td>電議</td></tr><tr><th>運(yùn)費(fèi)說(shuō)明</th><td>電議</td></tr><tr><th>范圍</th><td>球墨鑄鐵管免費(fèi)拿樣供應(yīng)范圍覆蓋<a href="http://www.yy4080ys.com/16qmztg185">廣東省</a>、<a href="http://www.yy4080ys.com/0755qmztg185">深圳市</a>、梅林街道、<a href="http://www.yy4080ys.com/075501qmztg185">羅湖區(qū)</a>、<a href="http://www.yy4080ys.com/075502qmztg185">福田區(qū)</a>、<a href="http://www.yy4080ys.com/075503qmztg185">南山區(qū)</a>、<a href="http://www.yy4080ys.com/075504qmztg185">寶安區(qū)</a>、<a href="http://www.yy4080ys.com/075505qmztg185">龍崗區(qū)</a>、<a href="http://www.yy4080ys.com/075506qmztg185">鹽田區(qū)</a>、<a href="http://www.yy4080ys.com/075507qmztg185">橫崗街道</a>、<a href="http://www.yy4080ys.com/075508qmztg185">平湖街道</a>、<a href="http://www.yy4080ys.com/075509qmztg185">南山區(qū)</a>、<a href="http://www.yy4080ys.com/075510qmztg185">坂田街道</a>、<a 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class="tycsgsmz2">深圳梅林華夏聯(lián)豐鑄造有限公司</span>將一如既往的秉承和諧、拼搏、科學(xué)、創(chuàng)新的宗旨，通過(guò)進(jìn)一步強(qiáng)化規(guī)范管理、建設(shè)精英團(tuán)隊(duì)、培育文化、打造優(yōu)質(zhì)品牌，保證企業(yè)的持續(xù)、、高速發(fā)展。并在此過(guò)程中，為客戶提供多方位優(yōu)質(zhì)<span id="oroqvsu" class="tycsgjc2"> 球墨鑄鐵管</span>，對(duì)內(nèi)為員工創(chuàng)造良好的成長(zhǎng)平臺(tái)為己任，不斷為社會(huì)創(chuàng)造價(jià)值。</p></p><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220619166357.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220619132129.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><div id="siamijn" class="khcont">在球墨鑄鐵管化學(xué)成分固定條件下，加熱到一定溫度，保溫一段時(shí)間后，進(jìn)行階段石墨化，使在一次結(jié)晶時(shí)形成鑄態(tài)組織中的游離滲碳體（針狀，共晶和塊狀滲碳體），全部轉(zhuǎn)變?yōu)閵W氏體和石墨。由于游離滲碳體遠(yuǎn)比共析滲碳體粗大，低溫很難分解，只有通過(guò)高溫加熱才會(huì)分解成奧氏體和石墨碳。保溫段兩側(cè)增加燒咀，可提高溫度，加速滲碳體的分解，延長(zhǎng)保溫段，即延長(zhǎng)球墨鑄鐵管在保溫段的時(shí)間，使?jié)B碳體充分分解，減少其數(shù)量。<br /> 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style="font-family:宋體;font-size:10.5pt;"><span>按當(dāng)前上先進(jìn)的離心鑄造，退火工藝，水冷金屬型離心鑄管機(jī)澆鑄而成，經(jīng)過(guò)退火，承插口修整，水壓試驗(yàn)，內(nèi)壁襯層水泥，水泥襯層養(yǎng)生，水泥內(nèi)襯，外壁涂敷瀝青漆，瀝青漆烘烤，承口防銹處理，噴嘜頭及包裝等多道工序的精心處理，具有度，高延伸率，耐腐蝕的鋼筋鐵骨。柔性鑄鐵管是指材質(zhì)為灰鑄鐵，經(jīng)過(guò)高速離心機(jī)鑄造而成，采用柔性連接方式，橡膠密封圈密封，螺栓緊固，在內(nèi)水壓下具有良好的撓曲性，伸縮性。是鑄鐵管材的發(fā)展方向。hxlfzzg</span></span><span style="font-family:宋體;font-size:10.5pt;"></span> </p> <p class="MsoNormal"> <span style="font-family:宋體;font-size:10.5pt;"><span>保溫讓原基體全部奧氏體化后再在油或熔鹽中冷卻實(shí)現(xiàn)淬火，后經(jīng)</span>250-350<span>℃加熱保溫回火，原基體轉(zhuǎn)換為回火馬氏體及殘留奧氏體組織，原球狀石墨形態(tài)不變。處理后的鑄件具有高的硬度及一定韌性，保留了石墨的潤(rùn)滑性能，耐磨性能更為改善。球墨鑄鐵件作為軸類件，如柴油機(jī)的曲軸，連桿，要求強(qiáng)度高同時(shí)韌性較好的綜合機(jī)械械性能，對(duì)鑄鐵件進(jìn)行調(diào)質(zhì)處理。將鑄鐵件淬火并低溫回火處理。工藝是：鑄件加熱到</span><span>860-900</span><span>℃的溫度</span><span>4.</span><span>東海球墨排水鑄鐵管</span><span>k8</span><span>價(jià)格球墨鑄鐵的淬火并回火處理球墨鑄造件作為軸承需要更高的硬度。低硫的優(yōu)質(zhì)鑄造鐵水萬(wàn)通球墨鑄鐵管采用煉鐵高爐生產(chǎn)的低磷。</span></span><span style="font-family:宋體;font-size:10.5pt;"></span> </p> <p class="MsoNormal"> <span style="font-family:宋體;font-size:10.5pt;"><span>支墩管身及接口，當(dāng)無(wú)異常時(shí)，再繼續(xù)升壓。預(yù)試階段：將管道內(nèi)水壓緩緩地升至試驗(yàn)壓力并穩(wěn)定。管道穿越河流</span>30min<span>期間如有壓力下降可注水補(bǔ)壓，但不高于試壓力，檢查管道接口，配件等處有無(wú)漏水，損壞現(xiàn)象，有漏水，損壞現(xiàn)象時(shí)應(yīng)及時(shí)停止試壓，查明原因并采取相應(yīng)措施后重新試壓。</span></span><span style="font-family:宋體;font-size:10.5pt;"></span> </p></div><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618594470.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618563196.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><div id="sedlhop" class="khcont"><p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <strong>(1)</strong><strong>球墨鑄鐵管</strong>試驗(yàn)前所有管道頂部除接口部位外同填壓實(shí)土，厚度不得小于50 cm，所有管亡I采用法蘭盲板封堵，主管道兩側(cè)預(yù)先焊接預(yù)留鋼管，上游為排氣、下游為打壓口。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong>(2)</strong>管采用法蘭盲板封堵后，主管道每側(cè)的盲板后用千斤頂（數(shù)量及噸位需經(jīng)計(jì)算確定）直接頂?shù)矫ぐ迳希Ы镯敽笞鶠闄M豎雙排枕木，枕木后背是經(jīng)過(guò)夯實(shí)的灰土或原狀土。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong>(3)</strong>水壓試驗(yàn)完成后管道內(nèi)的水由水泵從為便利的消 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> 火栓閥、排氣閥或大壓閥排出。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong>(4)</strong>排氣口選擇在管道的高點(diǎn)，在法蘭盲板上焊接一根鋼管，連接雙球閥作為排氣口；進(jìn)水口沒(méi)置在管道偏低的法蘭接口處。打壓口也設(shè)置在管道偏低的主管道的法蘭接口處。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <strong><span> </span>(5)</strong>加壓泵選用電動(dòng)壓力泵或手動(dòng)壓力泵，壓力表安裝在打壓三通口，管道與打壓機(jī)之間設(shè)置閘閥，用于控制壓力。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <strong>(6)</strong>管道兩端封堵后緩慢注水，同時(shí)將管道內(nèi)氣體通過(guò)排氣閥排出。中間部位的法蘭板待水溢后安裝，充滿水后進(jìn)行密封檢查。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong> (7)</strong>試壓前將管道充滿水浸泡48小時(shí)。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong>(8)</strong>加壓采用電動(dòng)泵緩慢分級(jí)升壓，共分3.5；5；7.5；10四個(gè)壓力段，升至試驗(yàn)壓力（10個(gè)壓力）后，停止加壓，保持恒定10分鐘，觀察接頭部位是否有滲水現(xiàn)象，管道強(qiáng)度試驗(yàn)為合格。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <strong>(9)</strong>穩(wěn)壓后，半個(gè)小時(shí)內(nèi)壓強(qiáng)下降0. 05MP以內(nèi)，嚴(yán)密性試驗(yàn)合格。 </p> <p style="background-color:#ffffff;font-style:normal;text-indent:0px;font-family:微軟雅黑;color:#000000;font-size:12px;font-weight:400;"> <span> </span><strong>(10)</strong>試壓結(jié)束，必須做好原始記錄，并簽字確認(rèn)hxlfzz </p></div><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618507813.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618475403.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><p><img src="http://2024aiimg.qy55.com//cjjhb_soft/185/1338/202402220618452105.jpg" title="球墨鑄鐵管免費(fèi)拿樣"><br></p><div id="hwhhoif" class=imgtipsbox>點(diǎn)擊查看華夏聯(lián)豐鑄造(深圳市梅林街道分公司)的<a href="/meilinqmztg/picture.html"><span id="cpequri" class=imgtips>【產(chǎn)品相冊(cè)庫(kù)】</span></a>以及我們的<a 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