DS/EN ISO 294-4:2019

Plast – Sprøjtestøbning af prøveemner af termoplastmaterialer – Del 4: Bestemmelse af støbesvind


Status:
Gældende
Type:
Standard
Sprog:
EN
Pris fra:
kr. 341,00

Beskrivelse

This document specifies a method of determining the moulding shrinkage and post-moulding shrinkage of injection-moulded test specimens of thermoplastic material in the directions parallel to and normal to the direction of melt flow.

For the determination of shrinkage of thermosets, see ISO 2577[2].

Moulding shrinkage as defined in this document excludes the effects of humidity uptake. This is included in post-moulding shrinkage and thus in total shrinkage. For cases when post-moulding shrinkage is caused by the uptake of humidity only, see ISO 175[1].

Moulding shrinkage as defined in this document represents the so-called free shrinkage with unrestricted deformation of the cooling plates in the mould during the hold period. It is considered, therefore, as the maximum value of any restricted shrinkage.


Antal sider: 18

Udgivet: 2019-02-13

Godkendelsesdato: 2019-02-11

Internationale relationer: EN ISO 294-4:2019 IDT ISO 294-4:2018 IDT

ICS: 83.080.20 - Termoplastiske materialer

Varenummer: M326918


Udvalg og komiteer

Komite

  • CEN/TC 249
  • ISO/TC 61/SC 9
  • ISO/TC 61/SC 9
  • ISO/TC 61/SC 9
  • ISO/TC 61/SC 9/WG 18
  • ISO/TC 61/SC 9/WG 18
  • ISO/TC 61/SC 9/WG 18

Dansk udvalg

DS/S-872