| 摘要 |
PURPOSE:To prevent a liner from being broken by shrinkage-fit and from shifting and to improve the durability and reliability of a cylinder by providing a metallic thin film with axial notches adhering to the outer peripheral surface of a ceramic liner, and shrinkage-fitting the liner to the cylinder. CONSTITUTION:A soft metallic thin film 2 such as pure copper thin film adheres to the outer peripheral surface of a ceramic liner 1. The surface of the metallic thin film 2 is ground, and then a plurality of notches 4 are machined along the axis of the liner 1. The liner 1 is shrinkage-fitted to a metallic cylinder 3 to form a compound cylinder. In this arrangement, thermal expansion of the metallic thin film 2 is absorbed by the notches 4 to prevent breakage of the liner 1. |
