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float: left; width: 180px; height: 180px;" /><a href="http://www.aocsb.com"><span style="font-size:36px;">扩管机</span></a></h3> <p> <span style="font-size:20px;">大口径厚壁无缝钢管加工方法涉及机械加工领域，具体涉及大口径厚壁无缝钢管即<a href="http://www.aocsb.com">扩管机</a>加工方法，包括以下步骤：</span></p> <p> <span style="font-size:20px;">钢坯的冶炼与处理，钢锭(或钢坯)是制管的原材料，选用冷钢锭，钢锭表面有裂纹要进行清理和打磨，凹坑及清理后产生的凹坑要进行特殊处理以防产生折叠，钢锭的冒口和底部都必须切除；坯料锻前加热，钢坯采用立式加热火焰不能直接喷射到坯料上，另外采用气体燃料加热至1290℃以下为宜，加热速度为50～150℃／h；锻料并处理缺陷，对坯料进行除鳞处理，即打掉坯料周围的氧化皮，以防锻造过程中氧化皮掉入模具而形成表面缺陷；本发明操作过程简单，设计合理，避免出现废品，降低原材料和能源消耗，显著提高劳动生产率，从而带来良好的经济效益。</span></p> <p> </p> <div class="float_c news-page fs_14"> <div class="f_l"> 上一篇：<a href='/gsxw/1711.html'>弯管机的主要优点和缺点</a> </div> <div class="f_r"> 下一篇：<a href='/gsxw/1718.html'>坡口机管件设备的广泛应用</a> </div> </div> </div> </div> </div> </div> <div class="footer"> <div class="w_1200 float_c pos_r"> <div class="f_l"> <ul class="list_none footer_ul"> <li> <span>关于我们</span> <a href="/guanyuoushang/">关于奥程</a> <a href="/oushangfengcai/">企业文化</a> <a href="/shengchanshili/">生产实力</a> <a href="/fuwuliucheng/">服务流程</a> <a href="/fuwulinian/">服务理念</a> </li> <li> <span>设备列表</span> <a href="/bzdtbj/">弯头机系列</a> <a href="/qzdy1/">弯管机系列</a> <a href="/qzdt123/">扩管机系列</a> <a href="/qzdcm72/">三通机系列</a> <a href="/zsg523/">坡口机系列</a> <a href="/cjgg41/">液压机系列</a> <a href="/fbj43/">模具</a> </li> <li> <span>视频中心</span> <a href="/videoshi/">弯头机视频</a> <a href="/videomeifeng/">弯管机视频</a> <a href="/video2/">扩管机视频</a> <a href="/videobo/">三通机视频</a> <a href="/video3/">坡口机视频</a> <a href="/video5/">液压机视频</a> <a href="/video4/">模具视频</a> </li> <li> <span>新闻中心</span> <a href="/gsxw/">奥程动态</a> <a href="/hyxw/">管件设备资讯</a> </li> <li> <span>联系我们</span> <a href="/contact/">联系我们</a> <a href="http://www.aocsb.com/sitemap.html">网站地图</a> </li> </ul> </div> <div class="f_r scan txt_c fs_26 c_white"> <img height="200" width="200" src="/templets/os/images/home/wx.jpg" alt="微信扫一扫" > 微信扫一扫 </div> <div class="pos_a footer_share float_c"> <i class="share_xl -mob-share-weibo" title="新浪微博"></i> <i class="share_wx -mob-share-weixin" title="微信分享"></i> <i class="share_qq -mob-share-qq" title="qq分享"></i> </div> </div> <div class="foot pos_f"> <div class="w_1200 float_c c_white"> <span>沧州奥程机械设备有限公司</span> <i></i> <span>177-6157-0021</span> <!--<a class="head_a1 contact" target="_blank" href="http://amos.alicdn.com/getcid.aw?v=2&uid=%E6%AC%A7%E5%B0%9A%E7%A7%91%E6%8A%80%E8%B4%B4%E6%9C%BA&site=cntaobao&s=1&groupid=0&charset=utf-8"></a>--> </div> </div> </div> <script src="/templets/os/js/jquery.min.js"></script> <script src="/templets/os/js/jquery.lazyload.js"></script> <script src="/templets/os/js/jquery.SuperSlide.2.1.1.js?v=20160901"></script> <script src="/templets/os/js/public.js"></script> <!-- WPA Button Begin --> <!--<script charset="utf-8" type="text/javascript" src="http://wpa.b.qq.com/cgi/wpa.php?key=XzkzODAwMjA3Nl80MTY0NjFfNDAwMDE2ODUwM18"></script>--> <!-- WPA Button END --> <!-- WPA Button Begin --> <!--<script charset="utf-8" type="text/javascript" src="http://wpa.b.qq.com/cgi/wpa.php?key=XzkzODAwMjA3Nl80NDQ2NjlfNDAwMDE2ODUwM18"></script>--> <!-- WPA Button End --> <!-- WPA Button Begin --> <!-- WPA Button End --> <!-- 百度统计 --> </div> <script src="js/jquery.min.js"></script> <!-- jq插件 --> <script src="js/jquery.SuperSlide.2.1.1.js?v=20160901"></script> <!-- 轮播图插件 --> <script src="js/public.js"></script> </body> </html>