Hard materials
VAUTID composite
Where the service life to date is less than 6 months or service life guarantees are required.
The service life extension which is achieved with VAUTID
5-fold service life extension with VAUTID composite as compared with chilled iron
Depending on the layer thickness of the wear protection layer, up to 5 times longer service lives can be achieved using VAUTID composite as compare with chilled iron materials. These service life improvements have been determined during use in concrete and asphalt mixers. VAUTID composite is the solution for many times longer service lives for numerous other applications against the most extreme, abrasive wear.
The differences between VAUTID composite and chilled iron
- VAUTID composite structure. Highly abrasion-resistant tungsten carbide with different grain sizes in a nickel matrix (40:1)
Using a combination of highly abrasion resistant tungsten carbides with a tough and impact resilient matrix, individual parts are manufactured in a newly developed production process.
The wear protection carriers are tungsten carbides with a hardness of approx. 2200 HV1. These are embedded in a nickel matrix which shows a good wettability of the tungsten carbide surface and in this way guarantees a firm anchoring of the carbides in the matrix. The nickel matrix is tough and can be exposed to impact loads. The composite material is applied to a steel main body as a layer.
Individual parts are manufactured at low cost by casting with highly wear-resistant VAUTID chilled iron in different compounds each with adequate wear resistance ratio.
Depending on the load profile, VAUTID chilled iron is produced as high or super high alloy chromium white cast iron with different alloy additions such as nickel, molybdenum or vanadium. The wear protection carriers are chromium carbides with a hardness of approx. 1700 HV1, and other carbides of higher hardness in an austenitic matrix depending on the type of alloy.
