Notched ingot improving a line productivity

Patent metadata

Field	Value
Publication number	US-12005496-B2
Application number	US-202017610791-A
Country	US
Kind code	B2
Filing date	May 13, 2020
Priority date	May 13, 2019
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A rectangular parallelepiped ingot defined by a height H, a width W and a length L, having longitudinal faces extending between two end faces, having a volume between 0.15 m3 and 0.80 m3 and a surface area to volume ratio between 10 m−1 and 18 m−1, made of at least one metal, including at least one notch and a notch tip along the ingot length, wherein the at least one notch is configured such that: MaxD<H/2, MaxD<W/2 and MaxD being the maximum distance between any point of the ingot and the closest surface of the ingot.

First claim

The invention claimed is:

1. A rectangular parallelepiped ingot defined by a height H, a width W and a length L, having longitudinal faces extending in a length direction between two end faces, the ingot comprising:
a volume between 0.15 m 3 and 0.80 m 3 and a surface area to volume ratio between 10 m −1 and 18 m −1 , made of at least one metal; and
at least one notch having a notch tip along one of the longitudinal faces, the at least one notch being configured such that:
MaxD<H/2,
MaxD<W/2 and
MaxD being a maximum distance between any point of the ingot and a closest surface of the ingot.

2. The ingot as recited in claim 1 wherein the at least one notch extends on one of the longitudinal faces from a first face of the ingot to a second face of the ingot being the opposite face of said first face.

3. The ingot as recited in claim 1 wherein the two ends faces include a first end face opposite a second end face and the at least one notch extends from the first end face to the second end face.

4. The ingot as recited in claim 1 wherein the volume is between 0.15 m 3 and 0.40 m 3 .

5. The ingot as recited in claim 1 wherein the at least one notch includes two notch faces facing each other, the two notch faces forming an angle of 10° to 90°.

6. The ingot as recited in claim 5 wherein the two notch faces form an angle of 20° to 50°.

7. The ingot as recited in claim 1 wherein the one of the longitudinal face is defined by the ingot width W and length L, and at least one notch has a maximum depth of three quarters of the ingot height H.

8. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot width W and length L, and the at least one notch has a depth at least a quarter of the ingot height H and a ratio between the ingot width W and the ingot height H is from 0.75 to 1.33.

9. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot width W and length L, and the at least one notch has a depth at least a third of the ingot height H and a ratio between the ingot width W and the ingot height H if from 0.66 to 1.5.

10. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot width W and length L, and the at least one notch has a depth of at least a half of the ingot or height H and a ratio between the ingot width W and the ingot height H is from 0.50 to 2.

11. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot width W and length L, and the notch tip is positioned between a quarter and three quarters of the ingot height H.

12. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot width W and length L, and the notch tip is positioned at half height of the ingot.

13. The ingot as recited in claim 1 wherein the one of the longitudinal face is defined by the ingot height H and length L, and at least one notch has a maximum depth of three quarters of the ingot width W.

14. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot height H and length L, and the at least one notch has a depth at least a quarter of the ingot width W and a ratio between the ingot width W and the ingot height H is from 0.75 to 1.33.

15. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot height H and length L, and the at least one notch has a depth at least a third of the ingot width W and a ratio between the ingot width W and the ingot height H if from 0.66 to 1.5.

16. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot height H and length L, and the at least one notch has a depth of at least a half of the ingot width W and a ratio between the ingot width W and the ingot height H is from 0.50 to 2.

17. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot height H and length L, and the notch tip is positioned between a quarter and three quarters of the ingot width W.

18. The ingot as recited in claim 1 wherein the one of the longitudinal faces is defined by the ingot height H and length L, and the notch tip is positioned at half width of the ingot.

19. A method for managing a bath level of a molten alloy and preventing dross formation inside a tank comprising:
providing a bath of a molten alloy; and
fully immersing the ingot as recited in claim 1 in said bath.

Assignees

• Arcelormittal

Inventors

• Dechassey Emmanuel
• Memni Woudhouh
• Vicente-Hernandez Patrice

Classifications

• B22D25/00

  Special casting characterised by the nature of the product (B22D15/02, B22D17/16, B22D19/00 take precedence; casting stereotype plates B41D3/00) · CPC title

• C23C2/0034

  Details related to elements immersed in bath · CPC title

• Y10T428/12396

  Discontinuous surface component · CPC title

• Y10T428/12354

  Nonplanar, uniform-thickness material having symmetrical channel shape or reverse fold [e.g., making acute angle, etc.] · CPC title

• Y10T428/12229

  Intermediate article [e.g., blank, etc.] · CPC title