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发明公开
CN102979910A 一种耐脆裂大直径机械密封用碳化硅摩擦副及其制造方法 无效 - 撤回

一种耐脆裂大直径机械密封用碳化硅摩擦副及其制造方法
摘要：
本发明涉及一种耐脆裂大直径机械密封用碳化硅摩擦副及其制造方法。所述的耐脆裂的机械密封用摩擦副由铁镍合金、粒度≤1μm的碳化硅粉和适当的添加剂采用热压烧结法制成。其制造工艺是将金属、按规定的比例混合均匀的碳化硅粉和添加剂装入石墨模具内，在2000—2100℃的热压炉内加压(30—50MPa)制成。采用所述方法制造的这种材料可用于耐腐蚀的机械密封摩擦副。
摘要（英）：

The invention relates to a silicon carbide friction pair for brittle fracture-resistant large-diameter mechanical sealing and a method for producing the silicon carbide friction pair for brittle fracture-resistant large-diameter mechanical sealing. The friction pair for brittle fracture-resistant mechanical sealing is produced through adopting a hot pressing sintering method to treat ironnickel silicon, carbide powder with the granularity of no more than 1 mum and an appropriate addition agent. The method for producing the friction pair is that metal, the silicon carbide powder which is mixed uniformly according to the specified rate and the addition agent are put into a graphite die and are pressurized (20-50MPa) in a hot pressing furnace of 2000-2100 DEG C to produce the friction pair. The material which is produced through adopting the method can be used for corrosion-resistant mechanical sealing friction pairs.

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