It's better not to take more than 15 minutes, and it's better to finish filling in about 12 minutes.

For the castings of 850kg gray cast iron disc, the casting time is generally less than 15 minutes, and it is better to finish the casting in about 12 minutes.

Measures to help molten iron pour in a reasonable time;

First, the pouring time is reasonable and the tapping temperature can be controlled at the optimal temperature.

Secondly, comprehensive control of the cooling range of molten iron in ladle is helpful to eliminate casting defects.

Thirdly, the selection of ladle should match the weight of casting.

Fourthly, the number of pouring workers should match the size and quantity of molten iron and castings.

5. Controlling reasonable pouring time is beneficial to the quality of gray cast iron and nodular cast iron.