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  • 花岗石直角尺的石材特性

    时间:2010-07-27 10:28 作者:跃达量具 点击:
    花岗石直角尺的石材特性:不会出现划痕,不受恒温条件阻止,在常温下也能保持测温量精度.

      花岗石直角尺的石材特性:
      不会出现划痕,不受恒温条件阻止,在常温下也能保持测温量精度.
      岩石经长期天然时效,组织结构均匀,线胀系数极小,内应力完全消失,不变形.
      刚性好,硬度高,耐磨性强,温度变形小.
      不磁化,测量时能平滑移动,无滞涩感,不受潮湿影响,平面称定好.物理性能:比重2970-3070kg/m3 耐压强度:2500-2600kg/cm3 弹性系数:1.3-1.5×106kg/cm2 吸水率.
      不怕酸,硷液物侵蚀,不会生锈,不必涂油,不易粘微尘,维护,保养方便简单,使用寿命长.
      花岗石直角尺的优点:
      1.抗磨蚀,耐高温,免维护.
      2.不变形,硬度高,耐磨性强.
      3.物理性稳定,组织缜密,受撞击晶粒脱落,表面不起毛边,不影响其平面精度,在使用中保养维护简便,材质稳定,能够保证长期不变形,线膨胀系数小,机械精度高,防锈、防磁、绝缘.

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