Apparatus and method for cutting cast strand
The cutting device employs a laser rangefinder to measure the distance to the casting tip surface, addressing measurement errors in existing methods and enabling precise cutting of cast slabs without a measuring roll, thus improving accuracy and reducing maintenance time.
JP7647641B2Active Publication Date: 2025-03-18JFE STEEL CORP
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Patent Information
- Application Number
- JP2022040920
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-03-16
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2042-03-16
AI Technical Summary
Technical Problem
Existing methods for cutting cast slabs in continuous casting facilities are prone to measurement errors due to wear, non-rotation, or slip of the measuring roll, requiring time-consuming repairs and emergency measures.
Method used
A cutting device and method that utilize a laser rangefinder to measure the distance to the casting tip surface, allowing for accurate cutting of cast slabs without relying on a measuring roll, and includes a retracting mechanism for the laser rangefinder and purge gas injection for surface cleaning.
Benefits of technology
Enables precise cutting of cast slabs to the desired length with reduced measurement errors, simplifies equipment maintenance by allowing quick replacement of the laser rangefinder, and minimizes downtime during repairs.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a casting strand cutting device and cutting method capable of accurately cutting a cast slab having a desired length without using a measuring roll.SOLUTION: A casting strand cutting device for cutting a continuously casted casting strand to obtain a cast slab, includes: cutting means that cuts the casting strand while moving in a casting direction of the casting strand in synchronization with a casting speed of the casting strand: a laser distance meter that is disposed at a position on a downstream side in the casting direction of the casting strand with respect to a moving range of the cutting means so as to face a tip surface in the casting direction of the casting strand, and measures a distance to the tip surface in the casting direction; and control means that calculates a length in the casting direction of the casting strand from the tip surface in the casting direction based on the distance measured by the laser distance meter, and controls the cutting means to start cutting the casting strand at a timing when a length in the casting direction reaches an object length of the cast slab.SELECTED DRAWING: Figure 1
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