| 摘要 |
In the production of large sheets of thermo-plastic material strips of the extruded material are deposited on a supporting device by a back and forth movement and the extent of this movement is set by the desired width of the sheet. The supporting device is indexed in a step by step movement, corresponding to the back and forth movement of the material, so that the strips of material are deposited in parallel relationship to each other. The strips are then bonded together to form the continuous sheet. |
