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1 Metal level
The metal level setting is a key parameter to ensure the intrinsic quality of the ingot. The metal level includes the initial level and the level during casting. The initial liquid level is conducive to the start of casting (commonly known as the beginning), and it corresponds to the filling time of the crystallizer and plays the role of casting bottom. The liquid level in the casting process is mainly to prevent cold septa or cracking during casting. It is related to casting speed, casting temperature and cooling intensity. At the same time, the time difference between the undetermined height of the metal level and the height of the liquefaction alarm should also be considered in order to achieve the purpose of safe operation and protection of the equipment.
2 mold filling time
The mold filling time is also called the filling time of liquid level, which is a necessary process parameter for automatic control by the computer. When the liquid level is filled, it is called a corresponding relationship with the metal level height value. When the liquid level filling time is set the same, the higher the metal level is set, the faster the liquid is injected into the crystallizer and the higher the liquid temperature in the crystallizer, the slower the cooling rate if the other conditions are the same; The slower the flow rate of the liquid into the crystallizer. The lower the liquid temperature in the crystallizer, the faster the cooling rate.
When the metal level fill height is set the same. The longer the liquid level filling time is set, the slower the flow rate of the liquid injected into the crystallizer, the lower the liquid temperature in the crystallizer, and the faster the cooling rate; conversely, the faster the liquid injection crystallizer flow rate is, the higher the liquid temperature in the crystallizer is cooled. The slower the speed.
The role of the liquid level filling time and metal level height combination is to control the liquid filling speed before the start of casting, ie the initial casting speed initial casting speed plays a key role in the bottom temperature control of the casting, and the proper initial casting speed can prevent driving. The initial casting speed of the post-leakage aluminum, cracking, and crack shape control at the bottom of the ingot can be set according to the different conditions of casting conditions, such as different casting temperatures and different casting process temperatures (including room temperature) and other initial casting speeds. It is different. It can also be set according to the different specifications of the characteristics of cattle alloy production. For example, alloys with a greater tendency to crack and alloys with a smaller tendency to cracks. Their initial casting speeds are different.
The metal level setting is a key parameter to ensure the intrinsic quality of the ingot. The metal level includes the initial level and the level during casting. The initial liquid level is conducive to the start of casting (commonly known as the beginning), and it corresponds to the filling time of the crystallizer and plays the role of casting bottom. The liquid level in the casting process is mainly to prevent cold septa or cracking during casting. It is related to casting speed, casting temperature and cooling intensity. At the same time, the time difference between the undetermined height of the metal level and the height of the liquefaction alarm should also be considered in order to achieve the purpose of safe operation and protection of the equipment.
2 mold filling time
The mold filling time is also called the filling time of liquid level, which is a necessary process parameter for automatic control by the computer. When the liquid level is filled, it is called a corresponding relationship with the metal level height value. When the liquid level filling time is set the same, the higher the metal level is set, the faster the liquid is injected into the crystallizer and the higher the liquid temperature in the crystallizer, the slower the cooling rate if the other conditions are the same; The slower the flow rate of the liquid into the crystallizer. The lower the liquid temperature in the crystallizer, the faster the cooling rate.
When the metal level fill height is set the same. The longer the liquid level filling time is set, the slower the flow rate of the liquid injected into the crystallizer, the lower the liquid temperature in the crystallizer, and the faster the cooling rate; conversely, the faster the liquid injection crystallizer flow rate is, the higher the liquid temperature in the crystallizer is cooled. The slower the speed.
The role of the liquid level filling time and metal level height combination is to control the liquid filling speed before the start of casting, ie the initial casting speed initial casting speed plays a key role in the bottom temperature control of the casting, and the proper initial casting speed can prevent driving. The initial casting speed of the post-leakage aluminum, cracking, and crack shape control at the bottom of the ingot can be set according to the different conditions of casting conditions, such as different casting temperatures and different casting process temperatures (including room temperature) and other initial casting speeds. It is different. It can also be set according to the different specifications of the characteristics of cattle alloy production. For example, alloys with a greater tendency to crack and alloys with a smaller tendency to cracks. Their initial casting speeds are different.
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