THERMOPLASTIC LINED HOLLOW METAL BODIES AND METHOD

摘要

Fuel tank and other hollow metal bodies internally lined with a thermoplastic material wherein a heated sheet of the thermoplastic material is laid over the previously formed hollow metal body with the plastic sheet in engagement with the edge of said body and the sheet is deformed to correspond to the internal shape of said body by drawing a vacuum through a foraminous vacuum tubing which remains entrapped between said sheet and body to become a part thereof and which includes the addition of porous and permeable bodies connected to the vacuum system for formation of said sheet liner with sections which extend from the metal body, and fuel tanks formed by the joinder of such lined body portions in sealed relation along the meeting edges of the plastic lining.