双色球红蓝走势图

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烧结模及其它金刚石烧结模具有什么特点

发布时间:2019-09-04 10:47:17 浏览:155次

运用人造石墨材料热变形极小的特点,可制作晶体管的烧结模具和支架,现已广泛运用,它已成为开展半导体工业不可缺少的材料。此外,石墨模具也运用于铸铁用的铸型,各种有色金属用的耐久性铸模,铸钢用铸型,耐热金属(钛,锆,钼等)用的铸型及焊钢轨用的铝热焊型的铸型等。热压烧结金刚石东西用石墨模具,在金刚石东西制作过程中担负着发热元件和模具支撑的两层效果,石墨模具质量的优劣,直接影响到金刚石东西的尺度精度、外观形状等。热压烧结工艺要求:温度到达(1 000±2)℃,成型压力16~50 MPa,保温保压时刻为15~30 min,环境为非真空状况。

烧结模及其它金刚石烧结模具有什么特点

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