les surveillances

Surveiller un processus consiste à s’assurer que le cycle de moulage reste régulier afin de garantir une qualité constante des pièces produites.

1. Surveillances primordiales dans un cycle d’injection

Trois paramètres clés doivent être systématiquement contrôlés pour assurer la stabilité du volume injecté et des conditions de transformation :

• p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Pression de commutation
• 2. Surveillances importantes pour évaluer la stabilité du processus

  Ces points permettent de confirmer le bon déroulement et la répétabilité du cycle :

  • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Temps de dosage
  • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Temps de cycle

  3. Surveillances liées à la stabilité et à l’homogénéité matière

  Observables directement sur la presse, elles informent sur l’efficacité de la plastification :

  • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Qualité de l’étuvage
  • 4. Signaux indicateurs de dérives du cycle

    La presse peut également signaler une variation du processus par différents symptômes :

    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Difficulté d’avalement
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Formation de bouchons
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Quantité, odeur ou aspect des purges
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Rebond de la vis à la commutation
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Alarmes fréquentes
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Traces d’huile sur la pièce
    • p]:pt-0 [&>p]:pb-2 [&>p]:my-0″ style=”box-sizing: border-box; scrollbar-color: initial; scrollbar-width: initial; –tw-border-spacing-x: 0; –tw-border-spacing-y: 0; –tw-translate-x: 0; –tw-translate-y: 0; –tw-rotate: 0; –tw-skew-x: 0; –tw-skew-y: 0; –tw-scale-x: 1; –tw-scale-y: 1; –tw-scroll-snap-strictness: proximity; –tw-ring-offset-width: 0px; –tw-ring-offset-color: #fff; –tw-ring-color: rgb(59 130 246 / .5); –tw-ring-offset-shadow: 0 0 #0000; –tw-ring-shadow: 0 0 #0000; –tw-shadow: 0 0 #0000; –tw-shadow-colored: 0 0 #0000; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px; border: 0px solid #e5e7eb;”>Copeaux de dégrappage