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In the Forming and Cutting Simultaneously, the construction of the mould foresees steel tempered punches and matrixes where hardness HRC (Rockwel) is around 59 - 60 for punches and 58 - 59 for matrixes.
At the moment we are in the phase in which we are making new tests with thermic treatments in which there is a further hardness of the cutting parts to allow a larger duration in the years and to avoid early wear since the PET cutting parts wear much more easily than the PP ones.
In the first tests we made we used the newest technologies on punches since they are more difficult to grind compared to matrixes.
The cooling as well is very important and has to be taken care of constantly.
The plug can be built with different materials that can be: delryn, syntactic foam, B1X etc.
Every customer of ours makes his own choice according to his own modification possibilities or according to the availability of the different materials. Inserts and bottom pieces are normally made in aluminium (Anticorodal) and then treated with "duralti" since this treatment, even if more expensive and less widespread compared to anodization, confers to the inserts and bottom pieces a longer duration and does not compromise the roughness of the very same.
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