| 摘要 |
The invention is directed to a method for controlling the free deformation of thermoplastic material in an automated process for processing the material to form articles. These articles are especially ampules, small bottles and the like produced from glass tubes. In this method, in order to obtain a high dimensional accuracy of the article, a corrective action is carried out by applying heat to the starting material in the deformation region in the heating phase. This corrective action takes place in dependence on a desired-value/actual-value comparison of the deformation of a workpiece achieved in a predetermined working step. In order to exclude interference influences in the development of the deformation, the measurement of the deformation achieved, the desired-value/actual-value comparison and the corrective action are carried out in situ on one and the same workpiece during shaping of the deformation in the heating phase.
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