| 摘要 |
<p>The process for thermoforming shapes on foamed thermoplastic material and cross-linked foamed thermoplastic material is performed continuously and includes, between the end of the foaming process and the beginning of the cooling step, the calendering of the sheets or bands (1). According to the type of calender (2,3,4) used, this thermoforming process allows to obtain items that can be folded in an accordion-like manner or can be rolled up like a blind. <IMAGE></p> |
