The Thermal Distortion of a Funnel Mold
| Autor: | Ronald C. Schimmel, Lance C. Hibbeler, Brian G. Thomas, Gert Abbel |
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| Rok vydání: | 2012 |
| Předmět: |
business.product_category
Materials science Metals and Alloys Shell (structure) Condensed Matter Physics medicine.disease_cause Thermal expansion Quantitative Biology::Cell Behavior Computer Science::Other Continuous casting Heat flux Mechanics of Materials Thermocouple Mold Materials Chemistry medicine Forensic engineering Water cooling Funnel Composite material business |
| Zdroj: | Metallurgical and Materials Transactions B. 43:1156-1172 |
| ISSN: | 1543-1916 1073-5615 |
| Popis: | This article investigates the thermal distortion of a funnel mold for continuous casting of thin slabs and explores the implications on taper and solidification of the steel shell. The three-dimensional mold temperatures are calculated using shell-mold heat flux and cooling water profiles that were calibrated with plant measurements. The thermal stresses and distorted shape of the mold are calculated with a detailed finite-element model of a symmetric fourth of the entire mold and waterbox assembly, and they are validated with plant thermocouple data and measurements of the wear of the narrow-face copper mold plates. The narrow-face mold distorts into the typical parabolic arc, and the wide face distorts into a “W” shape owing to the large variation in bolt stiffnesses. The thermal expansion of the wide face works against the applied narrow-face taper and funnel effects, so the effect of thermal distortion must be considered to accurately predict the ideal mold taper. |
| Databáze: | OpenAIRE |
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