In this process the chrome carbide content can be varied by adding ferrochromium (FeCr) powder depending on requirements and application. The Filler Wire Plus process was developed by EIPA and introduced for the production of weld-clad plates in 1991. Since then we have constantly updated the welding process with process improvements and fine tuning, all with the aim of further increasing the quality of EIPA plates.
The EIPA Filler Wire Plus process has clear advantages over other commonly used and supposedly cheaper weld-cladding processes using solid wire.
- A typical feature of the EIPA plate is a comparatively smooth surface without a noticeable transition between the welding passes. This surface minimises glide resistance and the danger of furrowing, increasing service life.
- The energy required to fuse filler wire is less than for solid wire. This avoids unwanted mixing with the basic material (fusion penetration), also increasing service life.
- As less energy is required for fusion, unwanted melting loss (loss of alloy elements) is kept to a minimum, increasing the proportion of primary chrome carbide in the coating. This also increases the service life of the wear plate. The chrome carbide content of the alloy that is welded on can be further increased as required by adding FeCr during the welding process.
- The carbon content of the alloy can be varied by changes to process parameters, while observing the maximum desired chrome content. This avoids loss of quality and makes the construction more reliable during the further processing of the EIPA plates.
- The EIPA Filler Wire Plus process is characterised by high reproducibility. The carbide proportions are subject to very low production variations. This means that every EIPA plate is guaranteed a long service life. That's why the excellent quality of the EIPA plate has been confirmed many times in independent comparisons with products from our competitors.
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