| 摘要 |
A method for manufacturing a composite insulating panel of the type comprising an external metal skin, an internal metal skin and an insulating core of foam material therebetween, the method includes the steps of:- conveying one of the metal skins continuously along a flat bed with an outer surface of the skin lowermost; laying down liquid insulating foam reactants onto the first skin; leading the second metal skin continuously over the liquid insulating foam reactants and the first metal skin; heating the assembly in an oven to allow the foam reactants to expand to form an insulating core between the metal skins; cutting the panel to a desired length, and applying a seal to at least one of the exposed foam edges of the panel. The seal which comprises a gas and/or vapour barrier is applied in-line. <Figure 1> |
