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发明公开
CN103080617A 球形环密封件 有权

球形环密封件
摘要：
揭示了一种球形环密封件（34），包括：球形环基底件（32），该球形环基底件（32）由圆柱形内表面（28）、局部凸出球形表面（29）和环形端面（30、31）限定；以及外层（33），该外层（33）与局部凸出球形表面（29）形成一体。球形环基底件（32）包括：加固件（5），该加固件（5）由金属丝网（4）构成；以及耐热材料（6），该耐热材料（6）包括膨胀石墨和磷酸盐，并与加固件（5）混合和形成一体。外层包括：耐热材料（6），该耐热材料（6）包括膨胀石墨和磷酸盐；以及加固件（5），该加固件由金属丝网（4）构成并与耐热材料（6）混合和形成一体。耐热材料（6）中所含的膨胀石墨具有0.1质量％或更低的灰分含量以及99.7质量％或更高的石墨含量。
摘要（英）：

Disclosed is a sphered-band sealing object (34) which comprises: a sphered-band base (32) defined by a cylindrical inner surface (28), a partly protrudent spherical surface (29), and annular edge surfaces (30, 31); and an outer layer (33) integrated with the partly protrudent spherical surface (29). The sphered-band base (32) comprises: a reinforcement (5) constituted of a wire gauze (4); and a heat-resistant material (6) which comprises expanded graphite and a phosphate and which has been intermingled and integrated with the reinforcement (5). The outer layer comprises: a heat-resistant material (6) comprising expanded graphite and a phosphate; and a reinforcement (5) which is constituted of a wire gauze (4) and which has been intermingled and integrated with the heat-resistant material (6). The expanded graphite contained in the heat-resistant material (6) has an ash content of 0.1 mass% or lower and a graphite content of 99.7 mass% or higher.

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