The PVA diffusion bonding furnaces are designed for temperatures as high as 1,350 °C. Optimal force distribution is essential, especially in the case of large mating surfaces, which are very difficult to model depending on the brazing technology used—in fact, it is often not possible at all. From certain press plate sizes upwards, there is a multi-stamp version available that demonstrably produces excellent results. Using special and suitable materials for the stamps and press plates guarantees outstanding temperature distribution, even in pressing operation. Directly detecting the pressing force with controllers and software developed in-house means that surface pressure can be configured precisely. The diffusion bonding furnaces are also suitable for heat treatment and vacuum/high-vacuum brazing. In terms of pumps, oil diffusion and turbomolecular devices are used.
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This type of furnace encompasses high-vacuum diffusion bonding furnaces with heating elements made of graphite materials. They can be used for any materials that are compatible with diffusion bonding and are not particularly sensitive to carbon.
The advantages: The furnaces are exceptionally robust and cost-effective.