Method and furnace installation for heat treating metal strip
US11193182B2 · kind B2 · utility
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2References
17Claims
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Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Apr 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for heat-treating a metal strip, where the metal strip is pre-heated continuously in a pre-heating zone with the aid of hot gas and subsequently undergoes further heat treatment in a directly fired furnace in a reducing and/or oxidizing atmosphere. The metal strip is pre-heated in the pre-heating zone with hot inert gas and further heated with an electric heating system before entering the directly fired furnace. A furnace plant for implementing the process and a related heat recovery system are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.