Article review. Getting a two-component cold-cast products in polyurethane silicone mold in a vacuum

Motivation
Approach to obtain high quality product
Sequence of vacuum casting stages
Dependence between viscosity and degassing time of polyurethane

Vacuum casting equipment
1.Vacuum chamber
2.Container
3.Container
4.Dosing unit with electric motor
5.Filling unit with electric motor
6.Mixing unit with electric motor
7.Funnel
8.Silicone mold
9.Vacuum pump
10.Control module

Vacuum casting equipment
Renishaw 5/01 vacuum casting machine

Stages of vacuum casting
Filling containers with plastic components(basis and hardener).
Preliminary degassing process for plastic components.
Mixing plastic components by mixing unit.
Filling in funnel by filling unit.

Master model

Dependence between viscosity and degassing time of polyurethane
Results of experiment with polyurethanes that have different viscosity parameters.