Special Alloys

Deep drawing process
For deep drawing a special low-melt alloy with a melting point of 140°C (tin-bismuth alloy) is melted down in a crucible and then cast into special master patterns.

The production of conventional tools of tool steel or even aluminium and brass are too costly and time-consuming to justify deep drawing for pre-series and prototypes.

Deep drawing lends itself in particular to application where small numbers of inexpensive deepdraw parts are necessary at short notice.

Furthermore, useful information for the production of difficult prototypes and sample parts can be gained and utilised in the actual production of series with steel tools.

Deep drawing is suitable for sheets of aluminium, copper, brass zinc, steel and stainless steel. The following sheet thicknesses can be designated as key data for the usability of such moulds - steel 1,5 mm and aluminium 3.0 mm. The curving and sweep radii should then have at least 3-5 times the sheet thickness.

Pipe bending
MST 70, with a melting point of 70°C, is a low-melt alloy which is used as a filler in pipe- and profile-bending. The bending radii are exceptionally good as the alloy expands on cooling and thereby offers optimal support for pipe walls. Thus even the smallest radii can be bent without wrinkles. MST 70 is easy to handle and can be repeatedly re-melted without any loss of quality.

Core technology
Previously it was only possible to produce geometrically simple plastic parts - complicated parts with cavities were not possible using the old technology. Core technology has overcome these barriers. Helical pipes, complicated parts with inner bypass components and cavities, which are almost completely enclosed (e.g. intake manifolds, bucket-wheels, pump-housings) - all these are possible with this revolutionary technology. Core technology is a process by which the first step involves casting a low-melt alloy (e.g. MST 140 - tin-bismuth alloy) which corresponds to the cavity of the part to be produced. This core is laid in a die with core prints and injected with plastic. Then the core is re-melted and the finished part remains with its defined cavity. Any later adjustments are not necessary. The smelted tin-bismuth can be re-used.

Screening
Our low-melt alloys can also be used in the medical field of radiation therapy for screening against radiation .Since the area to be exposed to radiation is seldom square, individual blocks for each patient can be cast, thereby isolating the areas to be treated and protecting the healthy areas, which are not for treatment. In this way the amount of radiation for the patient can be notably reduced.

Delivery Programme

Casting resins and fillers

Our product range contains a considerable number of different mould making materials which are highly suited for mould making and the construction of jigs and fixtures.

• Casting resins (Polyurethane, Epoxy and Acrylic resins)
• Fillers (Aluminium powder, Aluminium granules
• Primers and parting agents
• Model boards
• Diverse accessories

If the materials you are looking for do not appear in our product range, please send us a written enquiry and we will be happy to quote you.

Delivery Programme