METHOD FOR HEATING PREFORMS AND CORRESPONDING METHOD FOR FORMING CONTAINERS
A method for heating a preform (1) comprising a body portion (4) extending along a longitudinal axis (A1). The method comprises the following steps: introducing the preform (1) into a heating device (5) comprising an array of infrared emitters (50) arranged in a plurality of columns (Cj) and a plura...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
23.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | A method for heating a preform (1) comprising a body portion (4) extending along a longitudinal axis (A1). The method comprises the following steps: introducing the preform (1) into a heating device (5) comprising an array of infrared emitters (50) arranged in a plurality of columns (Cj) and a plurality of rows (Ri); -setting the power level of the infrared emitters (50) in order to divide the array into a subset of columns (SCn); and-heating the preform while translating the preform in a direction parallel to the row (Ri) and while rotating the preform about its longitudinal axis; the rotational speed, the translational speed and the power level of the infrared emitter (50) are set such that the power level of a subset of columns (SCn) of longitudinally extending regions (42) facing the body portion is different from the power level of a subset of columns facing the remainder of the body portion, said regions extending in a polygonal array with respect to each other.
一种用于加热预成型件(1)的方法,该预成型件包括沿着纵向轴线(A1)延伸的主体部分 |
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Bibliography: | Application Number: CN202180059968 |