The low-pressure casting process proves itself to be predestined for the conversion of exceptionally high quality demands. In low-pressure casting, the furnace is pressurized whereby the molten aluminium is brought into the casting die through the riser tube. The die is filled by slowly climbing, controlled, and above all, constant pressure. The laminar filling process avoids the formation of oxidation, the onset of cold currents and the danger of air inclusions.
The freezing proceeds then from the furthest point of the mould to sprue. During freezing, the furnace pressure is maintained and thus ensures feeding of the castings. Through casting, technical measures and the directed use of the die cooling, the ideal of a vectored freezing is reached.
Low-pressure casting process - controlled mould filling, controlled solidification, high efficiency
With a feeder box this offers a previously unknown flexibility in casting and feeding of parts by means of the low-pressure casting process - independent from the part contour and without additional heat supply. As the number of gating systems and feeders is not limited, several smaller gating can be positioned in different spots at the casting in order to further reduce cycle times.
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The Castings Industry Is Growing
In the UK there are around 400 foundries. They are located in all parts of the country, with the main concentrations in the Midlands and South Yorkshire (Sheffield) area.
UK foundries produce precision engineered components worth around £2.2B annually, using all metals and alloys and a wide range of casting processes.
We have die casting companies, investment foundries and sand foundries, all producing parts for the advanced manufacturing sector, as well as a supply chain with companies who produce tooling, dies, patterns and simulation software for designing castings, as well as all the raw materials we use in the casting industry, plus the equipment to produce castings including furnaces, moulding equipment and for additive manufacturing.
The UK Tooling Alliance and The SMMT
HCM proud to be members of Automotive Industries; UK Tooling Alliance and SMMT!
Alan Round officially retired from HCM at the end of october, after 15 years of outstanding service.Read more...