Sensing events in a metal casting system

Patent metadata

Field	Value
Publication number	US-11951534-B2
Application number	US-202118005885-A
Country	US
Kind code	B2
Filing date	Jul 23, 2021
Priority date	Jul 23, 2020
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

Systems and methods are disclosed for an event detection system that captures data associated with events while a DC casting system forms an ingot, determines characteristics of the events, and improves the casting system based on the events. Example systems and methods may include initiating a casting operation using one or more pieces of equipment of a casting system including a casting apparatus; capturing sensor data associated with one or more acoustic signals captured relative to the one or more pieces of equipment performing the casting operation; comparing the sensor data with a set of acoustic profiles; determining whether a particular type of event has occurred; causing an adjustment to the casting system or to the casting operation based on whether the particular type of event has occurred; and initiating a second casting operation using the adjusted casting system or casting operation.

First claim

That which is claimed is:

1. An apparatus for detecting events during a casting operation, the apparatus comprising:
a mold;
a conduit configured to deliver molten metal to the mold for casting the molten metal into an ingot;
a sensor configured to sense acoustic signals from the casting operation, wherein the sensor captures sensor data associated with the casting operation;
a controller comprising a processor configured to execute instructions stored on a non-transitory computer-readable medium in a memory, the controller causing the processor to perform processor operations including:
comparing the sensor data with a set of acoustic profiles;
determining, based on the comparison, whether a particular type of event has occurred;
causing an adjustment to the apparatus or to the casting operation based on whether the particular type of event has occurred; and
initiating a second casting operation using the adjusted casting system or casting operation.

2. The apparatus of claim 1 , wherein the sensor comprises an acoustic sensor and the acoustic sensor is configured to capture initial sensor data associated with acoustic signals from multiple casting operations over an initial period of time, and
wherein the processor operations further include:
generating, using the initial acoustic signals, the set of acoustic profiles, each acoustic profile of the set of acoustic profiles being associated with a type of event associated with the multiple casting operations over the initial period of time.

3. The apparatus of claim 2 , wherein the processor operations further include:
updating the set of acoustic profiles using the sensor data and the determination of whether a particular type of event has occurred.

4. The apparatus of claim 2 , wherein the comparing the sensor data with the set of acoustic profiles includes comparing characteristics of the acoustic signals captured relative to the casting operation to characteristics of the acoustic signals captured during previous casting operations.

5. The apparatus of claim 4 , wherein the characteristics of the acoustic signals include one or more of frequency, pitch, loudness, or tone.

6. The apparatus of claim 2 , wherein an acoustic profile of the set of acoustic profiles includes a machine learning algorithm generated using data associated with multiple instances of a particular event associated with one or more casting systems.

7. The apparatus of claim 1 , wherein the determining whether the particular type of event has occurred includes determining a recommendation regarding whether the particular type of event has occurred and a likelihood that the particular type of event has occurred based on the sensor data.

8. The apparatus of claim 1 , wherein the causing the adjustment to the casting apparatus or to the casting operation includes shutting off the casting apparatus or generating a modified recipe for the casting operation.

9. The apparatus of claim 1 , wherein the particular type of event includes one or more of a bleed out, a bleed over, a butt bounce, butt curl, or a water cooling operation.

10. The apparatus of claim 1 , further comprising a melting furnace, a holding furnace and a degasser.

11. A system for detecting events during a casting operation, the system comprising:
the casting apparatus of claim 1 ; and
one or more pieces of equipment of a casting system.

12. A method of detecting events in casting of metal, the method comprising:
initiating a casting operation using one or more pieces of equipment of a casting system including a casting apparatus, the casting operation comprising one or more actions that cause or facilitate casting of an ingot within a mold in the casting apparatus;
capturing, using an acoustic sensor, sensor data associated with one or more acoustic signals captured relative to the one or more pieces of equipment performing the casting operation;
comparing the sensor data with a set of acoustic profiles, each acoustic profile of the set of acoustic profiles being associated with a type of event associated with the casting operation;
determining, based on the comparison, whether a particular type of event has occurred;
causing an adjustment to the casting system or to the casting operation based on whether the particular type of event has occurred; and
initiating a second casting operation using the adjusted casting system or casting operation.

13. The method of claim 12 , further comprising:
capturing, using an initial acoustic sensor, sensor data from multiple casting operations using one or more initial casting apparatuses over a period of time; and
generating, using the sensor data, the set of acoustic profiles.

14. The method of claim 13 , wherein the one or more initial casting apparatuses include the casting apparatus.

15. The method of claim 12 , further comprising:
updating the set of acoustic profiles using the sensor data and the determination of whether a particular type of event has occurred.

16. The method of claim 12 , wherein the comparing the sensor data with the set of acoustic profiles includes comparing characteristics of the acoustic signals captured relative to the one or more pieces of equipment performing the casting operation to characteristics of the acoustic signals captured during previous casting operations.

17. The method of claim 16 , wherein the characteristics of the acoustic signals include one or more of frequency, pitch, loudness, or tone.

18. The method of claim 12 , wherein an acoustic profile of the set of acoustic profiles includes a machine learning algorithm generated using data associated with multiple instances of a particular event associated with one or more casting systems.

19. The method of claim 12 , wherein the determining whether the particular type of event has occurred includes determining a recommendation regarding whether the particular type of event has occurred and a likelihood that the particular type of event has occurred based on the sensor data.

20. The method of claim 12 , wherein the causing the adjustment to the casting system or to the casting operation includes generating a modified recipe for the casting operation.

Assignees

• Novelis Inc

Inventors

• Mccallum John Robert Buster
• Wilson Phillip
• Hudson Larry
• Shockley Richard
• Bischoff Todd F
• Thakur Adwait

Classifications

• B22D11/049 Primary

  for direct chill casting, e.g. electromagnetic casting · CPC title

• B22D11/16 Primary

  Controlling or regulating processes or operations · CPC title

• B22D11/103

  Distributing the molten metal, e.g. using runners, floats, distributors · CPC title

• B22D11/141

  for vertical casting · CPC title

• B22D11/18

  for pouring (B22D11/20 takes precedence) · CPC title