process

Kalt- und Warmkammerverfahren

Wir verschaffen Ihnen einen Überblick über die Verfahren.

Beim Druckguss unterscheidet man im Wesentlichen zwei verschiedene Bauarten. So gibt es das sogenannte Kaltkammer- und das Warmkammerverfahren.
Im Kaltkammerverfahren sind Druckgießmaschine und Ofen separat angeordnet. Auf diese Weise kann die benötigte Schmelzmenge manuell oder auch automatisch dosiert werden. Dabei setzen wir stets auf moderne Maschinen, um optimale Ergebnisse bei maximaler Wirtschaftlichkeit zu erzielen. Unsere Geräte sind beispielsweise mit Entnahmevorrichtungen, Metalldosierungseinheiten und Formsprüheinrichtungen ausgestattet, um einen vollautomatischen Betrieb zu ermöglichen.

This is how the cold chamber process works.

The dosing spoon takes a pre-set quantity of liquid metal (melt) from a crucible furnace. This required quantity of molten metal is poured into the casting chamber by the dosing spoon during each casting cycle and conveyed at high speed into the intended permanent metal mould via a movable casting piston.
The liquid metal solidifies under high pressure. A defined waiting time (cooling time) then elapses, during which the molten metal in the cavity cools down sufficiently for the casting to be ejected and removed after the mould is opened. The so-called ‘shot’, which consists of the casting, overflows, sprue and casting residue, is removed and deposited by the removal robot after ejection from the high-pressure die casting mould.
The cold chamber process is suitable for aluminium and copper-based alloys. However, its application is not limited to this, which is why zinc alloys, for example, are also processed in this way.
The cold chamber process is indispensable, as aggressive aluminium alloys can be processed here without any problems.
If you have any questions about the process, please do not hesitate to contact us. We will then advise you in more detail on the manufacturing process and offer you an on-site visit.

[data-wf-bgvideo-fallback-img] { display: none; } @media (prefers-reduced-motion: reduce) { [data-wf-bgvideo-fallback-img] { position: absolute; z-index: -100; display: inline-block; height: 100%; width: 100%; object-fit: cover; } }

process

This is how the hot chamber process works.

Thanks to the possibility of automation, production can be carried out in extremely short cycle times. Depending on the size of the machine, the production of a casting can take 3 to 4 seconds. The casting container is permanently immersed in the molten metal of the crucible. Liquid metal enters the casting chamber through lateral filling openings after the casting piston moves upwards at the end of the cycle. The pouring piston moves downwards at the start of the cycle, conveying the molten metal into the designated cavities of the casting mould.
The zinc alloys used, combined with the low heat dissipation, result in very fine-grained castings.
As the metal that flows into the casting chamber does not come into contact with air, oxidation and air inclusions are almost completely avoided. However, no materials containing aluminium or copper can be processed in the hot chamber process, as these would dissolve the material of the casting container in a very short time.
If you have any questions about the process, please do not hesitate to contact us. We will then advise you in more detail on the manufacturing process and offer you an on-site visit.