| 摘要 |
PURPOSE:To provide a seal impression material formed from a titanium-base metallic material, excellent in impact resistance and wear resistance of a sealing surface and not lost due to an earthquake, a fire, a traffic accident or the like. CONSTITUTION:The seal impression material is produced from a titanium base metallic material, for example, a titanium base alloy consisting of 4-6% of aluminum, 2.5-3% of chromium and the balance of titanium or consisting of 4-6% of aluminum, 2-3% of tin and the balance of titanium. The seal impression material may be formed in a cylindrical shape to contrive to reduce weight thereof. Further, a core material may be placed in the interior of the cylindrical body, or a small-type seal impression material may be contained in the interior. |
