# US 2019/0168293 A1 · Casting Mold And A Method For Detecting A Temperature Distribution Of Molten Metal In A Casting Mold

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- Number: US 2019/0168293 A1
- Document ID: US20190168293A1
- Status: Published application
- Kind: A1
- Application number: 16/266,902
- Filed: 2019-02-04
- Published: 2019-06-06
- Earliest claimed: 2015-08-21
- Assignees: ABB Schweiz AG
- Applicants: ABB Schweiz AG
- Inventors: Conny Svahn; Jan-Erik Eriksson; Martin Sedén
- Web page: https://patentgrep.com/patent/US20190168293A1

## CPC

- B22D 11/182: {by measuring temperature}
- B22D 2/006: {for the temperature of the molten metal (measuring temperature in general G01K)}
- B22D 11/20: for removing cast stock
- G01K 11/3206: at discrete locations in the fibre, e.g. using Bragg scattering
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

A casting mold including a copper plate and a plurality of optical fibers, having a plurality of temperature measuring points for the copper plate while casting. Molten metal is cast into the mold along an axis of, the optical fibers built-in the plate. A method for detecting temperature distribution of a molten metal in a casting mold having at least one copper plate, including determining by calculation or measurement an ideal molten flow of the metal, building-in a plurality of optical fibers into the copper plate based on flow, arranging the optical fibers inside at least the upper part of the copper plate, receiving the measurements of temperatures, and comparing the measurements of temperatures with a calculated/measured distribution of an ideal molten flow.

## Claims

### Claim at position 1

1-13. (canceled)

### Claim 14

A casting mold comprising a copper plate and a plurality of optical fibers, each of the optical fibers having a plurality of temperature measuring points arranged for measuring temperature of the copper plate while casting, wherein a molten metal is cast into the casting mold along an axis, wherein the optical fibers are built-in the copper plate and are arranged at least the upper part of the copper plate, wherein a plurality of holes are arranged in parallel and/or perpendicular with the axis for accommodating the optical fibers, characterized in that a total amount of the temperature measuring points is at least 500.

### Claim 15 (depends on 14)

The casting mold of claim 14, wherein the optical fibers are arranged into at least the upper 300 mm of the copper plate.

### Claim 16 (depends on 14)

The casting mold of claim 14, wherein the optical fibers are arranged into the entire wide side and at least the upper 400 mm of the copper plate.

### Claim 17 (depends on 14)

The casting mold of claim 14, wherein the optical fibers are arranged into the entire area of the copper plate.

### Claim 18 (depends on 14)

The casting mold of claim 14, wherein each of the holes has a diameter (d1) of 0.3-1.2 mm.

### Claim 19 (depends on 14)

The casting mold of claim 14, wherein the holes accommodating the optical fibers are grouped and a distance (d2) between two groups is in a range of 100-400 mm.

### Claim 20 (depends on 14)

The casting mold of claim 14, wherein the holes accommodating the optical fibers are grouped and a distance (d3) between two holes in the same group is in a range 10-100 mm.

### Claim 21 (depends on 14)

The casting mold of claim 14, wherein a total amount of the temperature measuring points is at least 1500.

### Claim 22 (depends on 14)

The casting mold of claim 14, wherein a total amount of the temperature measuring points is at least 3000.