西安不锈钢地铁车辆车体选材设计的耐腐蚀要求

摘要：<p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">西安</span></span><span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">不锈钢地铁车辆车体选材设计的耐腐蚀要求</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">西安</span></span><span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">不锈钢地铁车辆具有环保、免油漆、耐腐蚀等优点，带给人们</span>“不生锈、易清洁、**质感”的美好印象。不锈钢的金属质感符合现代审美，在国外城市轨道交通中得到了大量应用，在国内，不锈钢因为新基建而越来越多地用于国内城市轨道交通中。</span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">据小编了解，目前国内不锈钢地铁车辆的车体材料设计多数采用</span>“不锈钢＋局部碳钢”的混合设计模式。</span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">那</span>“不锈钢＋局部碳钢”的混合设计模式是什么呢？即整个地铁车辆的车体仅端牵枕采用碳钢材料，其余部分为不锈钢材料。端牵枕采用碳钢材料主要是为了解决端牵枕部位的厚板承力和焊接变形等问题。</span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">那么不锈钢地铁车辆车体材料主要是哪些不锈钢材质呢？即为耐腐蚀性能优良的</span>SUS301L<span style="font-family:宋体;">系列奥氏体不锈钢，其中包括</span><span style="font-family:Calibri;">SUS301L-ST</span><span style="font-family:宋体;">､</span><span style="font-family:Calibri;">SUS301L-MT</span><span style="font-family:宋体;">､</span><span style="font-family:Calibri;">SUS301L-HT</span><span style="font-family:宋体;">､</span><span style="font-family:Calibri;">SUS301L-DLT</span><span style="font-family:宋体;">等多个强度级别的不锈钢材质。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">讲到这里，小编突然想起</span>4<span style="font-family:宋体;">个月前曾写过《“新基建”少不了</span><span style="font-family:Calibri;">301L</span><span style="font-family:宋体;">不锈钢的参与！》这篇文大家有兴趣的可以看看。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">言归正传，选择</span>SUS301L<span style="font-family:宋体;">不锈钢材质主要考虑地铁车辆车体部件的强度需求以及成型要求。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋体;font-size:10.5pt;mso-spacerun:"yes";mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;"><span style="font-family:宋体;">地铁车辆车体的底架端部结构为碳钢材料，牵枕缓承力部件主要采用具有良好冷成型性能的高强度耐候钢。不锈钢材料的耐腐蚀性能较好，而且表面不需要再涂漆，但是外露的弧焊焊缝部位要进行钝化处理，碳钢部件外露面、异种钢接头混合区域都要进行油漆处理。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:Calibri;font-size:10.5pt;mso-spacerun:"yes";mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0000pt;mso-fareast-font-family:宋体;"> </span> </p>