R, R, C METHOD AND DEVICE FOR CASTING AMORPHOUS, ULTRA-MICROCRYSTALLINE, MICROCRYSTALLINE ETC. METAL PROFILES

摘要

Provided is an R, R, C method and device for continuously casting amorphous, ultra-microcrystalline, microcrystalline etc. metal profiles. An air pumping cover working chamber (8) with a powerful air pumping system is used, and a liquid nitrogen at a temperature of t = -190°C and a pressure of p = 1.877 bars is used as a working cold source; and the air pumping cover working chamber (8) is located at a hot cast mould outlet, and only air is contained therein in addition to boards or profiles that are pulled out, without any device or apparatus; a traction mechanism (6) pulls metal boards or profiles away from the cross-sectional hot casting mould outlet; and a liquid nitrogen ejector (5) ejects liquid nitrogen onto metal boards or profiles having different grades and different specifications at a liquid nitrogen ejection amount V, a liquid nitrogen ejection speed K and a liquid nitrogen ejection layer thickness h, the ejected liquid nitrogen is gasified to absorb heat such that all internal thermal energy contained in micro metal length sections is rapidly carried away and the micro metal length sections are rapidly cooled and solidified; and the powerful air pumping system quickly discharges the nitrogen gas produced by gasifying the ejected liquid nitrogen from the air pumping cover working chamber (8). The method and device can achieve the continuous casting of amorphous, ultra-microcrystalline, microcrystalline, and fine crystalline metal boards or profiles at room temperature.