M7120A平面磨床的主轴和轴瓦的修复或更新应注意的问题
<p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-indent:24.1pt;text-align:left;mso-pagination:widow-orphan;mso-char-indent-count:2.0\"><b><span lang=\"EN-US\" style=\"font-size:10pt;color:#3366ff;mso-font-kerning:0pt\"><font face=\"Times New Roman\">M7120A</font></span></b><b><span style=\"font-size:10pt;color:#3366ff;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">平面磨床的主轴和轴瓦的修复或更新应注意的问题</span></b></p><p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan\"><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\"><span style=\"mso-spacerun:yes\"> </span>M7120A</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">平面磨床的主轴和轴瓦的修复或更新应注意：</span><span lang=\"EN-US\" style=\"font-size:10pt;font-family:宋体;mso-font-kerning:0pt;mso-bidi-font-family:宋体\"><p></p></span></p><p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan\"><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><span style=\"mso-spacerun:yes\"><font face=\"Times New Roman\"> </font></span></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">（</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">1</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">）旧主轴修复时，要估计好最大的修磨量，修磨后对主轴的热处理是否有严重损耗，特别是主轴采用渗氮、渗碳处理时，更应注意热处理层是否会被修磨掉（一般渗氮层厚度在</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">0.35~0.5mm</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">，渗碳层厚度在</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">1.05~1.5mm</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">）以及修后主轴的刚度是否足够。一般修磨量应小于</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">0.1mm</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">，</span><span lang=\"EN-US\" style=\"font-size:10pt;font-family:宋体;mso-font-kerning:0pt;mso-bidi-font-family:宋体\"><p></p></span></p><p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan\"><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><span style=\"mso-spacerun:yes\"><font face=\"Times New Roman\"> </font></span></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">（</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">2</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">）旧轴瓦修复前，应将轴瓦、支承头配对编号，并记下其原来的装配位置，不要搞乱，轴瓦的刮削最好用机刮设备刮削，以保证表面粗糙度要求，缺乏设备时，应采用圆刮刀刮削，刮削量要尽量少。</span><span lang=\"EN-US\" style=\"font-size:10pt;font-family:宋体;mso-font-kerning:0pt;mso-bidi-font-family:宋体\"><p></p></span></p><p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan\"><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><span style=\"mso-spacerun:yes\"><font face=\"Times New Roman\"> </font></span></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">（</span><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\">3</font></span><span style=\"font-size:10pt;font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-font-kerning:0pt;mso-bidi-font-family:宋体\">）采用新轴、新轴瓦时，要仔细检查轴瓦是否有碰伤、拉毛等现象，发现有毛头、碰伤，应仔细刮去，再用氧化铬跑合，装配前，还应修复轴瓦的接触面积。</span><span lang=\"EN-US\" style=\"font-size:10pt;font-family:宋体;mso-font-kerning:0pt;mso-bidi-font-family:宋体\"><p></p></span></p><p class=\"MsoNormal\" align=\"left\" style=\"margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan\"><span lang=\"EN-US\" style=\"font-size:10pt;mso-font-kerning:0pt\"><font face=\"Times New Roman\"></font></span><span lang=\"EN-US\" style=\"font-size:10pt;font-family:宋体;mso-font-kerning:0pt;mso-bidi-font-family:宋体\"><p></p></span></p>
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