Hot runner technology
Now zinc can do even more.
With the new hot runner technology zinc die cast components can be cast without a runner system . By elimination of the cast in-run less air enters the casting. By this means the porosity of the component is reduced.
Apart from this beneficial effect of hot runner technology on the quality, geometries can be cast using hot runner technology which could not be manufactured using conventional runners. Interest awakened? If it has, contact us!
Small, yet eminently capable.
Nano comes from Greek and simply means dwarf. How small is nano actually? Imagine the size of a football in comparison to that of the earth – extremely small isn't it? Yet nanotechnology gives rise to innovations which have found and still find their way into marketable products. Exemplary: the nano coating of zinc die cast components for protection from damage and corrosion. Just how effective this hi-tech process is was demonstrated by a salt spray test to DIN EN ISO 9227-NSSt: up to 640 hours resistance to corrosion – and all this with a coating thickness of no more than 2 µm.
Additional advantages: Existing zinc components can be provided with a nano surface finish without any need to modify their construction. And because casting and coating are from a single source, processing times, freight costs and transport damage are all reduced. Nanotechnology simply taken to a new horizons – by Föhl.
A powerful combination.
Hybrid technology combines the best of two worlds. This is being exploited for their products by more and more sectors of industry – irrespective of whether automobiles, internet accesses or even paints and varnishes are concerned. Materials in zinc and plastics are no exception in this respect: Their strengths complement each other to advantage as far as hybrid components are concerned which as cast inserts are back injection molded or injection molded around with plastic or mechanically joined. They score for example with advantages inelectrical assembly, costs and function.. Together they expand the room for innovation, technically sophisticated concepts and multiplicity of variants for construction, design and feel.
The construction, development and manufacture of zinc-plastic composite systems demand specialist know-how in a class of its own. Because one has to be an expert not only on the composite but on the manufacturing process as well. At Föhl we know: That composite systems can only be manufactured in top quality and with optimal economy if everything comes together perfectly.
Hollow core technology
Technology transfer drives innovation.
New thinking, alternative thinking, rethinking and sometimes thinking outside the box: This creates genuine innovation. Like the hollow core technology in zinc die casting. Because that which has functioned in plastics injection molding for a long time surely ought to be transferable? The researchers and developers were firmly convinced in this respect. And they were right. Cooperating with a tooling supplier and a supplier of collapsible cores a suitably shaped collapsible core for a brass insert adapted for the requirements of zinc die casting was developed and built.
More than 30,000 shots with the tooling later it is clear: That using the collapsible core technique undercut contours can be manufactured with great accuracy and reproducibility in zinc die cast as well. Complicated gate technology and mechanical finishing are eliminated thereby. Knowledge and technology transfer: perfect consummately successful.