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机床工作台|机床铸件|机床床身|

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<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“机床铸件“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“FONT-SIZE: small; COLOR: #000080“>机床铸件</span></span></span></a></span></span></strong><span style=“FONT-SIZE: small“><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>、大型机床铸件均采用树脂砂,消失模实型铸造,单件达到</span><span lang=“EN-US“>50</span></strong><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>吨以上,年生产量在</span><span lang=“EN-US“>9200</span></strong><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>吨左右,具在很好的耐磨性与消震性,熔点比较低,流动性良好,收缩率小,尺寸精度高,刚度好,加工余量小,表面质量好等优势,大型床身铸件便于操作,缩短了生产周期,提高了生产效率,广泛用于仪器仪表、标准件、轴承业、电子、轻工、汽配行业等零部件的加工,特别适合有色金属。</span></strong></span></p>
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<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>大型床身铸件系列产品包括:机床床身、端面铣床床身、落地铣镗床床身、对接床身、镗床床身、龙门铣床身、龙门磨床身、龙门刨床身、机床铸件、龙门刨床身铸件、龙门铣床铸件、数控机床床身铸件、立柱、横梁、工作台。</span><span lang=“EN-US“> </span></span></strong></p>
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<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>机床铸件的材质为优异的高度度铸铁</span><span lang=“EN-US“>HT250-300</span></strong><strong style=“mso-bidi-font-weight: normal“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>,抗拉力强,使用寿命长,广泛用于仪器仪表、电子、轻工、标准件、轴承业、汽配行业等零部件的加工,特别适合有色金属</span></strong></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“机床铸件“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“FONT-SIZE: small; COLOR: #000080“>机床铸件</span></span></span></a></span></span></strong><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>又可以称为大型铸件,泊头航星机床铸件。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>一、</span><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“机床床身“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“COLOR: #000080“>机床床身</span></span></span></a></span></span></strong><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>标准:</span><span lang=“EN-US“>GB9439</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>—</span><span lang=“EN-US“>88 </span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span><span lang=“EN-US“><span style=“mso-spacerun: yes“> </span></span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>二、</span><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“床身“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“COLOR: #000080“>床身</span></span></span></a></span></span></strong><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>的特点:</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>(1)</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>耐磨性与消震性好。由于铸铁中石墨有利于润滑及贮油,所以耐磨性好。同样,由于石墨的存在的消震性优于钢。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>(2)</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>工艺性能好。由于灰口铸铁含碳量高,接近于共晶成分,故熔点比较低,流动性良好,收缩率小,因此适宜于铸造结构复杂或薄壁铸件。另外,由于石墨使切削加工时易于形成断屑,所以灰口铸铁的可切削加工性优于钢。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>三、硬度和抗拉强度之间的关系:</span><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“灰铸铁“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“COLOR: #000080“>灰铸铁</span></span></span></a></span></span></strong><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>的硬度和抗拉强度之间,存在一定的对应关系,其经验关系式为:</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>1</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>、当</span><span lang=“EN-US“>O</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>≥</span><span lang=“EN-US“>196N/mm</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>㎡时</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span><span lang=“EN-US“>HB=RH(</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>飞</span><span lang=“EN-US“>00+0 4380b) (B1) </span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>2</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>、当</span><span lang=“EN-US“>0</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>≥</span><span lang=“EN-US“>796N/mm</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>㎡时</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span><span lang=“EN-US“>HB=RH (44+O 7240b) (B2) </span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  式中相对硬度</span><span lang=“EN-US“>(RH)</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>值主要由原材料、熔化工艺、处理工艺及铸件的冷却速度所确定。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>四、利用树脂砂型</span><strong style=“mso-bidi-font-weight: normal“><span style=“text-decoration: underline;“><span style=“COLOR: blue“ lang=“EN-US“><a title=“铸造机床床身“ href=“http://www.bthxzw.com/“><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “ lang=“EN-US“><span lang=“EN-US“><span style=“COLOR: #000080“>铸造机床床身</span></span></span></a></span></span></strong><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>铸件的优点</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>1</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>树脂砂型刚度好,浇注初期砂型强度高这就有条件利用铸铁凝固过程的石墨化膨胀,有效地清理缩孔、缩松缺点,实现灰铸铁、球墨铸铁件的少冒口、无冒口铸造。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>2</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>实型铸造生产中采用聚苯乙烯泡塑模样应用呋哺树脂自硬砂造型。当金属液浇入铸型时,泡沫塑料模样在高温金属液作用下迅速气化,燃烧而消失,金属液取代了原来泡沫塑料所占据的位置,冷却凝固成与模样形状相同的实型铸件。</span> <span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>  </span></span></p>
<p class=“MsoNormal“ style=“MARGIN: 0cm 0cm 0pt“><span style=“FONT-SIZE: small“><span lang=“EN-US“>3</span><span style=“FONT-FAMILY: 宋体; mso-ascii-font-family: “>相对来说,消失模铸造对于生产单件或小批量的汽车覆盖件,机床床身等大型模具较之传统砂型有很大优势,它不但省去了昂贵的木型费用,而且便于操作,缩短了生产周期,提高了生产效率,具有尺寸精度高,加工余量小,表面质量好等优势。</span></span></p>

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