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发明授权
CN109182870B 一种具有低摩擦系数CuW合金的制备方法 有权

一种具有低摩擦系数CuW合金的制备方法
摘要：
本发明公开了一种具有低摩擦系数CuW合金的制备方法，具体为：步骤1，将铜粉和氮化硼粉末按照一定的比例机械混粉后，得到混合粉末A，再将混合粉末A冷压成坯，然后对冷压形成的坯进行热压烧结，随后随炉冷却，得到BN/Cu复合材料毛坯；步骤2，将钨粉和铜粉按照一定比例经过机械混合后晾干、筛粉，得到混合粉末B，将混合粉末B冷压成坯得到钨骨架；步骤3，将得到的BN/Cu复合材料毛坯和钨骨架一起放到石墨坩埚中，然后将坩埚置于气氛保护高温烧结炉中，最后在氢气气氛下烧结、熔渗，从而得到CuW合金。本发明一种具有低摩擦系数CuW合金的制备方法所制备的CuW合金摩擦系数降低，合金的磨损率相对较小。
摘要（英）：

The invention discloses a preparation method of a CuW alloy with low friction coefficient. The preparation method comprises the following specific steps: (1) copper powder and boron nitride powder aremechanically mixed according to a certain ratio to obtain mixed powder A; the mixed powder A is cold pressed as a blank; then, the hot-press sintering is performed on the blank formed by cold pressing; and the blank is cooled along with a furnace to obtain a BN/Cu composite material blank; (2) tungsten powder and copper powder are mechanically mixed according to a certain ratio for airing and screening to obtain mixed powder B; and the mixed powder B is cold pressed as a blank to obtain a tungsten skeleton; and (3) the obtained BN/Cu composite material blank and the tungsten skeleton are putin a graphite crucible; and then, the crucible is put in an atmospheric shielding high-temperature sintering furnace for sintering and infiltration under a hydrogen atmosphere to obtain the CuW alloy.The CuW alloy prepared by the preparation method of the CuW alloy with low friction coefficient reduces the friction coefficient, and is relatively lower in wear rate.

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