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Granulate batch quality controlling method, involves determining whether plastic body meets predefined quality criterion based on surface defects, and releasing granulate batch if predefined quality criterion is met by plastic body
Granulate batch quality controlling method, involves determining whether plastic body meets predefined quality criterion based on surface defects, and releasing granulate batch if predefined quality criterion is met by plastic body
The method involves removing a sample (114) from a granulate batch, and producing a transparent plastic body (116) from the sample. The transparent plastic body is examined for surface defects (150, 152, 154) by an optical test method. A determination is made whether the plastic body meets a predefined quality criterion (128) based on the surface defects. A granulate batch is released if the predefined quality criterion is met by the plastic body. An independent claim is also included for a device for controlling quality of a granulate batch.
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