| 摘要 |
A rigid polymeric insulating foam board is manufactured by applying side web extensions 40 to both longitudinal side edges of a base substrate 2, applying liquid foam reactants to the base substrate 2 and continuously applying a top substrate 3 to form a sandwich. As the sandwich is heated in an oven 35, the side web extensions 40 are guided progressively upwardly by engaging the extensions 40 against a plurality of guides 60, 61, 62. The guides 60, 61, 62 are adjustable upwardly/downwardly and outwardly/inwardly to correspond to a desired width of foam board. |
