The shafts are straightened after the heat treatment processes and between mechanical
From manual straightening to fully automated straightening with presses and roller straighteners, different straightening methods are used with forces from 10 tonnes to 315 tonnes.
The heat treatment occurs using annealing plants with an open atmosphere. The temperature range here is between 120°C to 680°C. The control occurs via batch elements. The process is completed by annealing and tempering.
The surface structure is optimised through polishing and belt grinding. At LinTec, systems are used with up to seven polishing stations. The desired surface is achieved in coordinated steps, up to a mean roughness value Ra under 0.15 micrometres. Polishing is also used after the chrome-plating.
We produce customer-specific finished parts using different machining methods: