ï»?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 石油钻杆(厂家,ä»·æ ¼,规格,型号) - 濮阳市中泰石油钻具有限公å?/title> <meta name="Keywords" content="石油钻杆"> <meta name="Description" content="为你详细介绍石油钻杆(远销江苏,山东,浙江)产品内容,包括石油钻杆的用途、型号、范围、图片等,在这里你可以得知所有石油钻杆新闻以及最新的市场石油钻杆价格.咨询电话:18238395888"> <link type="text/css" href="/template/NEST60006/lib/base.css" rel="stylesheet"/> <link type="text/css" href="/template/NEST60006/lib/common.css" rel="stylesheet"/> <script src="/template/NEST60006/js/jquery-1.8.0.min.js"></script> <script src="/template/NEST60006/js/foucsbox.js"></script> <script src="/template/NEST60006/js/tpl.js"></script> <script src="/template/NEST60006/js/message_zh.js"></script> <script src="/template/NEST60006/js/message_zh-cn.js"></script> <script type="text/javascript" src="/template/NEST60006/js/cloud-zoom.1.0.2.js"></script> <script type="text/javascript" src="/template/NEST60006/js/picCloud.js"></script> <script 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</table> </div> </td> </tr> </table> </div> <div class="content"> <div class="news_arc"> <span> <p style="text-align:center;"> <span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;"><img src="/uploads/image/20151023/20151023093708_8539.jpg" alt="石油钻杆" /><br /> </span> </p> <p> <span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;">        减少<b>石油钻杆</b>磨损对策</span> </p> <p> <span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;"><span style="font-family:'Microsoft YaHei';font-size:14px;line-height:28px;">        </span><a href="http://www.freeappco.com" target="_blank">石油钻杆</a>接头耐磨带以其一定的耐磨性和减磨性,保护钻杆接头和套管免遭强烈的磨损,在深井钻井、大位移井钻井和大斜度井钻井工程中获得了推广应用,而且接头耐磨带技术已经成为国际重大石油工程项目招标中,投标方中标的必备技术条件之一。从机理上讲,钻杆接头耐磨带的作用是利用自身及其耐磨性,将钻杆外壁和套管内壁隔离,使钻杆不与套管壁或井壁直接接触,以保护钻杆接头和套管免遭强烈的磨损ã€?/span> </p> <p> <span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;">        è¿‘年来,在多种可供选用的套管防磨技术之中,操作方便和效果更好者首推接头耐磨带。研究表明,接头耐磨带性能(含与套管材料的匹配性能)的优化与改善,是防止套管强烈磨损的关键技术措施。事实上,自从耐磨带技术问世以来,随着现场应用中出现问题的逐步克服,新型耐磨带专用堆焊材料不断被推出,耐磨带的材料品种已经发生了质的变化ã€?/span> </p> <p> <span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;">        ä¸ºäº†å°½å¿«æ‘†è„±â€œè¿›å£ç„Šä¸ä»·æ ¼æ˜‚贵,国内油田难以承受”的困难局面,也为了提高中国钻井公司在国际招标运做中的竞争力,国内相继有单位开展高性能耐磨带焊接材料与进口焊材国产化的攻关工作,并且取得了可喜的进展。新型钻杆接头耐磨带堆焊材料D100就是其中一例。为了消除碳化钨、碳化铬堆焊材料的缺陷,同时提高堆焊材料的冲击韧性,D100是焊缝基体组织为低碳马氏体的堆焊材料。对堆焊层进行磨抛、腐蚀后,观察焊缝金相组织。耐磨带焊态组织为低碳板条马氏体和少量残余奥氏体无预热情况下无明显的裂纹,马氏体束尺寸较小,残余奥氏体较少因而导致基体硬度较高,这是由于马氏体相界面阻碍位错运动而造成。另外,当合金中碳含量低,氮含量<0</span><span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;">.</span><span style="font-family:'Microsoft YaHei';font-size:14px;line-height:2;">64%时,堆焊合金硬度会随氮含量增加急剧上升,主要是因为基体组织会形成含氮渗碳体Fe23(CNï¼?,因而保证了其具有高的硬度。该焊丝具有价格便宜,工艺简便,可以重复堆焊等优点。对比试验表明,Dl00耐磨带的磨损率低于Fe一50铁基合金粉耐磨带,它的耐磨性能与进口材料相当ã€?/span> </p> </span> <div class="proArtiNum"> <p>上一条:<a 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