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Spritzblasen - Extrusionsblasen

Alles zum Thema Kunststoffe und Kunststofftechnik für Maschinenbauer, Techniker und Ingenieure.

Spritzblasen - Extrusionsblasen

Beitragvon durable03 am Mi 24. Jul 2013, 09:28

Hey,

Ich bin gerade dabei die verschiedenen Verfahren zu lernen in Sachen Kunststoffverarbeitung.

Dazu hätte ich eine Frage und zwar wird erwähnt das bei Spritzblasen die Bauteilgröße die hergestellt werden kann begrenzt ist im Gegensatz zu Extrusionsblasformen.

Kann mir jemand erklären warum die Bauteilgröße bei dem Verfahren Spritzblasen begrenzt ist?

Vielen Dank im voraus

Grüße
durable03
 
Beiträge: 1
Registriert: Mi 24. Jul 2013, 09:26

Re: Spritzblasen - Extrusionsblasen

Beitragvon Admin am Di 13. Aug 2013, 08:48

Hallo durable,

eine konkrete Antwort kann ich dir leider auch nicht geben. Aber ich denke, dass die Grenzen durch die Presse bzw. den Formträger gegeben sind:

Soweit ich weiß, wird beim Prozess Spritzblasen zunächst ein Preform in Spritzgießverfahren hergestellt. Hier ist ja schon die erste Größenbegrenzung durch den Formträger gegeben. Was ich hier meine ist, dass man für größere Bauteile auch größere Forminnendrücke benötigt - kommt natürlich auch auf die Bauteilgeometrie an. Um gegen den Forminnendruck gegenzuhalten, benötigt man natürlich auch eine kräftigere Presse / Formträger / Schließe.
Bei Spritzblasen wird es sich ähnlich verhalten.

Hoffe, ich konnte dir wenigstens etwas weiterhelfen.
Admin
Administrator
 
Beiträge: 35
Registriert: Mo 26. Jan 2009, 21:08

Re: Spritzblasen - Extrusionsblasen

Beitragvon tonny am Sa 13. Aug 2016, 00:11

Klingt sehr interessant
"Alles ist schlechter geworden. Nur eins ist besser geworden: Die Moral ist schlechter geworden!" (Dieter Hallervorden)
tonny
 
Beiträge: 39
Registriert: Fr 19. Dez 2014, 16:38


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