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Control of Withdrawal Speed of an Ingot in Continuous Casting Operation

IP.com Disclosure Number: IPCOM000094602D
Original Publication Date: 1965-Mar-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Hsu, JP: AUTHOR

Abstract

The proper speed for withdrawing an ingot from a mold in a continuous casting operation is determined by measuring the temperature rise of the cooling water in the mold used to form the ingot. Mold 10 is used to form an ingot 11 in the continuous operation. Mold 10 has a water jacket 12 with an inlet 13 and an outlet 14.

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Control of Withdrawal Speed of an Ingot in Continuous Casting Operation

The proper speed for withdrawing an ingot from a mold in a continuous casting operation is determined by measuring the temperature rise of the cooling water in the mold used to form the ingot. Mold 10 is used to form an ingot 11 in the continuous operation. Mold 10 has a water jacket 12 with an inlet 13 and an outlet 14.

Ingot 11 is withdrawn at the proper speed by regulating the speed of withdrawal in accordance with the temperature differential between the water at inlet 13 and the water at outlet 14. This control is accomplished through controller 20 and motor 2l.

The reason that this method of controlling the withdrawal speed of B ingot 11 is superior is that the proper speed of withdrawal is the particular speed whereby the solidification front at the exit end of mold 10 has the proper thickness. The amount of heat transferred from the molten metal to the cooling water is related to the thickness of solidification front. Hence, by measuring the temperature differential between the water entering and the water leaving mold 10, the thickness of the front can be determined. Hence, proper withdrawal speed can be established.

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