B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 11/00 (2006.01) B21B 1/46 (2006.01) B21B 3/00 (2006.01) B22D 17/00 (2006.01) C22C 1/00 (2006.01)
Patent
CA 2371700
There are 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, due to its continuity, and by precise control of the process parameter, 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 ~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.
la présente invention concerne un processus de moulage et de laminage continu permettant de produire de façon continue une composition métallique déformée solide à grains fins qui convient pour le formage de métaux semi-solides. Ce processus est caractérisé par une haute capacité, du fait de sa continuité, et grâce à un contrôle précis des paramètre du processus, tels que le taux de solidification, la température de laminage, la déformation totale et la vitesse de déformation. Il est préférable que le taux de solidification se situe dans une plage allant de 10 à 150 ·C/s, et on gère la déformation totale de façon qu'elle soit supérieure à une contrainte effective de Mises de 2,3, afin d'obtenir une structure déformée à grains fins avec suffisamment d'énergie de distorsion. Cette invention concerne aussi un procédé associant le processus de moulage et de laminage continu de préparation d'un matériau brut semi-solide, et le formage d'articles semi-solides profilés.
Lu Jian
Riviere V. Alfredo
Saluja Navtej S.
Zhou Youdong
Smart & Biggar
Suraltech Inc.
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