双色球红蓝走势图

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双色球红蓝走势图 13972952686

电子烧结类石墨模具的优点分享

发布时间:2019-06-10 11:36:04 浏览:127次

金刚石工具制造所用石墨模具材料,主要为超细颗粒构造、高纯度和高石墨化度的石墨资料,请求其均匀粒径小于15μm,以至10μm以下,中等气孔尺寸小于2μm。用此炭素原料做成的石墨模,气孔率小、构造致密、外表光亮度高、抗氧化性较强等优点,均匀运用寿命可达30~40次。

电子烧结类石墨模具的优点分享

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