| 摘要 |
A thermoplastic double plate with stays and channels inbetween is shaped by deep drawing, for example by vacuum forming, compressed air forming or forming in a moulding tool with a counter punch. To prevent the channels being compressed and the surface of the plate collapsing between the individual stays, the individual channels are sealed off before the double plates are shaped, the sealing off being achieved by squeezing, welding, or by means of sealing elements. |
