What happens when the liquid level is unstable during continuous casting pouring 10

There are many factors of liquid level instability, which are simply classified:

First, according to the pouring process.

1. Open pouring for sizing: tension leveler transmission system, mold vibration device, secondary cooling system, etc.

2. Plug rod protection casting: plug rod control system, mold vibration device, secondary cooling system, etc.

Second, according to the pouring section.

1. Small section.

2. Large cross-section.

3. According to the type of steel casting.

The main reason is that the equipment is very accurate, there will be no mechanical or electrical reasons, and the secondary cooling system is also normal, so the main consideration is the phase change - the unstable liquid level caused by strain.

No more, too many, each single item can be broken down into a lot of factors, to put it simply. If you want to solve the problem, you need to tell me the equipment situation, process conditions, and on-site characteristics, so that you can make targeted analysis and avoid detours.

There are several reasons: First, the rhythm is not good, the molten steel cannot be connected, and the molten steel such as continuous casting. Second, the temperature fluctuates, a furnace temperature is high to lower the liquid level to pour, a furnace low to pour the liquid surface. Third, there is a problem with the equipment.

For the hydraulic vibration control of the mold, I recommend using the Delta RMC150 controller in the United States.

The controller can realize synchronous control of 2-8 axes.

The actual vibration curve and the design curve can be completely consistent, and the proportional valve and hydraulic cylinder can also play a good role in protection. Reduce the wear of the valve and effectively extend the life of the cylinder.

The reason for the instability of the liquid level may be that the actuator is not firmly installed, the anchor bolt is not fixed, or the plug rod is not installed.

Find out the cause and analyze and solve it specifically.

1. There is a problem with the composition of the molten steel;

2. The copper tube of the crystallizer is used for too long;

3. There is a problem with the plug rod;

4. The mechanism is fixed and unstable;

5. The liquid level of the tundish is too low;

6. The pulling speed is too fast;

7. The radioactive source receiver is not good;

8. There is a problem with the pouring temperature;

9. The plug rod has a mechanism and is not well connected;

10. Other electrical problems;

11. Other equipment issues.

The reasons are: 1. The pouring temperature is too low and the fluidity is not enough.

2. The pouring pressure is not enough, and the pouring speed is slow.

Solution: 1. Depending on the structure and composition of the casting, select the appropriate pouring temperature.

2. Improve the pouring pressure head and pour quickly.