The change of phase diagrams of die casting magnesium alloy in the high-speed cooling condition:
In the casting conditions, due to high velocity, metal type strong cooling capacity, cooling speed is very quick. In the binary diagram, the eutectic point moves to the direction of heat stable component. As for Al alloy, it is moved to Si increase; as for Mg alloy, it is the move to Mg increasing, this movement can make the part Al hypoeutectic alloy become solid solution liquid single-phase alloy, part Al hypereutectic alloy become hypoeutectic alloy.
Mg alloy is just the opposite, partial solid solution alloy become hypoeutectic alloy, part of hypoeutectic alloy becomes the hypereutectic alloy. In general, high cooling rate increase the content of Mg eutectic, conducive to the casting. In addition, compare the difference between the pure magnesium and aluminum melting point and eutectic temperature can also show that magnesium die casting is easy to casting, its value is 212 °C, and aluminum is 73 °C.
The above article from KENOS official website (http://www.kenos-diecasting.com/)
The original address: http://www.kenos-diecasting.com/news_show_78.html, reproduced please specify. kenosblog1506
In the casting conditions, due to high velocity, metal type strong cooling capacity, cooling speed is very quick. In the binary diagram, the eutectic point moves to the direction of heat stable component. As for Al alloy, it is moved to Si increase; as for Mg alloy, it is the move to Mg increasing, this movement can make the part Al hypoeutectic alloy become solid solution liquid single-phase alloy, part Al hypereutectic alloy become hypoeutectic alloy.
Mg alloy is just the opposite, partial solid solution alloy become hypoeutectic alloy, part of hypoeutectic alloy becomes the hypereutectic alloy. In general, high cooling rate increase the content of Mg eutectic, conducive to the casting. In addition, compare the difference between the pure magnesium and aluminum melting point and eutectic temperature can also show that magnesium die casting is easy to casting, its value is 212 °C, and aluminum is 73 °C.
The above article from KENOS official website (http://www.kenos-diecasting.com/)
The original address: http://www.kenos-diecasting.com/news_show_78.html, reproduced please specify. kenosblog1506
没有评论:
发表评论