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some medium allow steel-grades

Could someone please tell me the relationship between billets staying extra time in the furnace and scale formation on the surface of the billet? Like in my case above the billet heating heat for the rolling is 2 hours but the billets stay in the furnace for 10 hours that is 8 hour extra. The...

oh, thank you very much. Something In my head kept telling me that this concept of mine was not being communicated properly. Regards

The furnace hearth only rotates when the system gets a manual command from the furnace operator.

I will have to provide the maximum details so my point will be clear. The capacity of the furnace is 15 tons per hour. Rolling Mill capacity is 3 tons per hour. The billet size is 180mm in diameter, the length of the billet is 2000mm( roughly 400 kg) and the furnace can hold 75 Billets at a...

what, about the burning losses i.e. scale formation at the surface of the billet, which at current is 6%. The more the billet remains in the furnace the more the formation of the scale. Kindly shed some light on this phenomena too. regards

My idea was to place fewer billets in the furnace, which means they would stay for less time, so the burning losses would be less than the current number, which is currently 6%. The other thing was that less amount of energy was required to maintain the billet's temperature when there were fewer...

would you mind explaining the reason for this No.

We have an over-capacity rotary hearth furnace for reheating steel billets. the furnace capacity is 15 tons /hour but the required output is only 3 tons per hour due to to limitation of our rolling mill. This low capacity utilization is resulting in more burning losses typically around 6 percent...