Prevention Techniques of Roll Surface Crack in Twin Roll Caster

Fibre flocculation during twin- wire roll forming

At the division of Paper Technology a forming unit consisting of headbox, forming roll unit and reservoir system for suspension recirculation has been constructed, with the main purpose to experimentally study the paper forming event by visually following the fibre flow phenomena in the forming zone. The effect of various running parameters upon the pressure distribution, which is in correlatio...

Annealing Effects in Twin-Roll Cast AA8006 Aluminium Sheets Processed by Accumulative Roll-Bonding

Ultrafine grained sheets were prepared from a twin-roll cast AA8006 aluminium alloy using accumulative roll-bonding process at room temperature. The evolution of microstructure of sheets after three accumulative roll-bonding passes during isochronal annealing with a constant step of 20 °C/20 min was studied by light and electron microscopy. The influence of the resulting microstructure on mecha...

Modelling and simulation of twin - roll casting of bulk metallicglasses

Dynamic Modeling of Twin-roll Steel Strip Casting

We consider the problem of dynamic coupling between the rapid thermal solidification and mechanical compression of steel in twin-roll steel strip casting. In traditional steel casting, molten steel is first solidified into thick slabs and then compressed via a series of rollers to create thin sheets of steel. In twin-roll casting, these two processes are combined, thereby making control of the ...

Roll-to-roll anodization and etching of aluminum foils for high-throughput surface nanotexturing.

A high-throughput process for nanotexturing of hard and soft surfaces based on the roll-to-roll anodization and etching of low-cost aluminum foils is presented. The process enables the precise control of surface topography, feature size, and shape over large areas thereby presenting a highly versatile platform for fabricating substrates with user-defined, functional performance. Specifically, t...