The injection moulding cycle is made up of a number of elements. They include
the filling portion, the cooling portion & the mould open portion. The cooling
portion is always the longest & is usually 65% of the overall cycle. Therefore
the longest element in the overall cycle is where the greatest benefit can be
obtained in improving the injection moulding
cycle & where Beryllium Copper works best.
In addition to its superior thermal conductivity Mipalloy 100 offers the following
advantages;
Maintains high surface finish.
Accepts etching & texturing.
Requires no additional heat treatment. Supplied in heat treated condition.
Can be readily machined using conventional machining practices as well as Electrical
Discharge Machining (EDM).
Mipalloy manufactures & stocks Beryllium Copper in various shapes & sizes;
Round rod from 6mm diameter to 145mm diameter.
Rectangular & Square bars from 1”square upwards.
Large forgings weighing more than 1000 kgs single piece.
Recommended blow mould applications;
Blow pins : High thermal conductivity for efficient heat removal, reducing cycle time.
Mould Inserts : Inserts at pinch off & neck areas of Aluminium mould increasing both hardness
& conductivity.
Complete moulds : resistant to attack in PVC applications. Mipalloy 100 alone or with hardened
pinch offs for use in
moulds with complex parting lines.
Recommended injection mould applications;
Core pins, cavity areas, sprue bushings, ejector pins & sleeves, manifold systems.
Advantages include;
Improved control of post mould shrinkage.
Better heat dissipation in areas of heavy wall sections or limited water channel access.
Improved dimensional stability in multi cavity tools or in large flat walled parts.
Excellent wear life when mated with standard tool steels.
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