ELOVATION- the PVD coating revolution:
Have you probably wondered why Eltropuls does not have a coating system? The reason is very simple. We wanted to offer a great technology – and good things take time. Now the time has come!
The new technology is here! – It combines all the advantages of the previous technologies – as simple as arc coating, as high quality as HiPims coating and as economically ingenious as all Eltropuls systems. And the best thing is, it is also a fully-fledged plasma nitriding system with the latest technology!
Nitriding as a pre-treatment enables an improvement in three ways.
1. Nitrided substrate shows increased hardness and thus increased resistance to plastic deformation.
2. Nitriding induces residual compressive stresses that are favorable for bonding with PVD layers.
3. if a compound layer is created during nitriding, it acts as a supporting part of the layered composite with increased hardness and modulus of elasticity, but is not prone to adhesive failure due to its growth out of the substrate.
In the past, the user was faced with two obstacles to making optimum use of this bond: Firstly, the cost of 2 treatments, first plasma nitriding and then subsequent coating, is too high for many applications. Secondly, when performing the treatment in 2 steps, there are often problems with the adhesion of the PVD layers to the compound layer, which is why any compound layer created is typically removed before PVD coating.
Our ELOVATION Hybrid systems, on the other hand, make it possible to apply the PVD coating directly to a plasma-nitrided compound layer without interrupting the vacuum process, with optimum bonding of the layer to the substrate and without the dissolved compound layer, which reduces adhesion. This enables the use of very hard modern PVD coatings such as Ti(Al)SiN nanocomposites directly on a favorable substrate such as heat-treatable steels.
