| 摘要 |
<p>A laminated chain saw guide bar has a centre or core laminate (40) comprised of an adhesive-foam material that is configured to form the guide groove (20). The core laminate resists deformation, strongly adheres to the interfacing sides of the outer laminates (42), and is inert and impervious to oil. The core is formed in place between the outer laminates (42) with a fixture maintaining their spaced relationship and providing a cavity that conforms to the desired core configuration. The foam material has a controlled activation to allow assembly of the fixture and upon activation, produces the desired properties mentioned. the inner sides of the outer laminates (42) are preferably roughened to assist the bonding action of the foam material.</p> |
