| 摘要 |
A process for controlling a blow molding process for the production of containers made of thermoplastic material, comprises supplying heat conditioned blanks to a molding station, and determining the characteristics of at least one container. A process for controlling a blow molding process for the production of containers made of thermoplastic material, comprises supplying heat conditioned blanks to a molding station, and determining the characteristics of at least one container. One of the characteristics is the wall thickness, which is determined immediately after the container is formed, and then compared with a threshold value. The temperature profile and/or molding parameters are altered so as to reduce the difference between the actual and threshold value. The molding parameters consist of pre and final molding pressures, and the blank stretching time and/or speed. During stretching, the time between the start of the phase and the start of the blowing process is altered, and during final molding the time between the start and finish can also be altered. When the blank is supplied to a number of molding stations, the pre molding pressure and final molding pressure are held constant.
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