Other

Suraltech, Inc.

Alfredo Riviere, V

Navtej S Saluja

Jian Gang Lu

Youdong Zhou

There is provided a continuous casting and rolling process for continuously producing a deformed fine grain solid metal composition suitable for semi-solid forming. The process is characterized by high throughput, continuity, and precise control of the process parameters, such as solidification rate, rolling temperature and speed and total deformation. The solidification rate is preferred to be in a range of 10 to 150&deg; C./s, and the total deformation is controlled to be larger than a Mises effective strain of 2.3 to obtain a deformed fine grain structure with enough distortion energy. A method combining the continuous casting and rolling process of preparing semi-solid raw material with semi-solid forming of shaped articles is also disclosed.

Processes for continuously producing fine grained metal compositions and for semi-solid forming of shaped articles

An apparatus for continuously extruding shaped articles includes a frictional extrusion source for extruding a feed material, a chamber for holding frictionally extruded material received from the extrusion source, a plurality of die chambers, each of the die chambers receiving extruded material from the holding chamber, a conduit for directing extruded material from the holding chamber to each die chamber for selectively filling each die chamber with extruded feed material and a monitor for filling of each die chamber of said plurality of die chambers with extruded feed material. The conduit is responsive to the monitor so that extruded material can be directed from a filled die to chamber to an empty die chamber for subsequent filling, thereby permitting continuous extrusion.

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Caracas, Venezuela

Alfredo Riviere, V