Abstract:
Method and apparatus for cooling a heated mould (12, 14, 16) of a device (10) for blow-moulding thermoplastic containers, the device including: a mould (12, 14, 16) having an internal face which delimits a moulding cavity (18) and which includes an external face (20, 28) which surrounds the moulding cavity (18); heating elements for heating the mould to a determined temperature and which are deactivated when the cooling method is implemented; characterized in that the mould (12, 14, 16) is cooled by circulating heat-transfer fluid directly in contact with the external face (20, 28) thereof.
Abstract:
A heating station of a container manufacturing installation, the heating station having a plurality of laser emitters wherein each laser emitter includes a plurality of laser chips mounted on an external face of at least one support. In example embodiments, each laser chip includes at least one laser diode arranged to emit laser radiation in the infrared range in an emission direction substantially perpendicular to the external face of the support. In example embodiments, each laser diode includes at least two active regions stacked on one another in the emission direction, wherein each active region participating in the laser radiation emitted by said laser diode.
Abstract:
The invention proposes a treatment method for the sterilization by irradiation of containers made of thermoplastic material. The method comprises at least an initial step of modification of the pitch consisting in selectively varying the initial pitch between two consecutive containers to increase the irradiation time of each container. The method also comprises an irradiation step consisting in irradiating each container from the outside with an electron beam emitted by at least one emitter of a sterilization device.