Design of cooling units for heat treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU100636" target="_blank" >RIV/00216305:26210/12:PU100636 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.intechopen.com/books/heat-treatment-conventional-and-novel-applications/design-of-cooling-units-for-heat-treatment" target="_blank" >http://www.intechopen.com/books/heat-treatment-conventional-and-novel-applications/design-of-cooling-units-for-heat-treatment</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Design of cooling units for heat treatment

Popis výsledku v původním jazyce

Microstructure and nature of grains, grain size and composition determine the overall mechanical behavior of steel. Heat treatment provides an efficient way to manipulate the properties of steel by controlling the cooling rate. Way of heat treatment depends on many aspects. One of the most important parameter is the amount of production. Another important parameter is size of products. We focus here on large production such as interstand and run-out table cooling of hot rolled strip, run-out table cooling of sheets and plates, cooling of long products at the exit from a rolling mill, cooling of rails, tubes and special profiles, continuous hardening and heat treatment lines for steel strips. In-line heat treatment is characterized by running of hot material through the cooling section. Design procedure of cooling sections for obtaining the demanded structure and mechanical properties is iterative research involving several important steps. We begin with Continuous Cooling Transformation (CCT) diagram for the selected material. Numerical simulation of cooling follows to find appropriate cooling intensity and its duration. Knowing the desired cooling intensity new cooling section is designed and tested under the laboratory conditions. From the laboratory experiments boundary conditions are obtained and tested using numerical model. When the best solution is found it is tested on the real sample and the result structure is studied. In most cases the process must be repeated as the CCT diagram is for different size of sample and the cooling rate in designed section is not constant.

Název v anglickém jazyce

Design of cooling units for heat treatment

Popis výsledku anglicky

Microstructure and nature of grains, grain size and composition determine the overall mechanical behavior of steel. Heat treatment provides an efficient way to manipulate the properties of steel by controlling the cooling rate. Way of heat treatment depends on many aspects. One of the most important parameter is the amount of production. Another important parameter is size of products. We focus here on large production such as interstand and run-out table cooling of hot rolled strip, run-out table cooling of sheets and plates, cooling of long products at the exit from a rolling mill, cooling of rails, tubes and special profiles, continuous hardening and heat treatment lines for steel strips. In-line heat treatment is characterized by running of hot material through the cooling section. Design procedure of cooling sections for obtaining the demanded structure and mechanical properties is iterative research involving several important steps. We begin with Continuous Cooling Transformation (CCT) diagram for the selected material. Numerical simulation of cooling follows to find appropriate cooling intensity and its duration. Knowing the desired cooling intensity new cooling section is designed and tested under the laboratory conditions. From the laboratory experiments boundary conditions are obtained and tested using numerical model. When the best solution is found it is tested on the real sample and the result structure is studied. In most cases the process must be repeated as the CCT diagram is for different size of sample and the cooling rate in designed section is not constant.

Druh

C - Kapitola v odborné knize

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Heat treatment conventional and applications

ISBN

978-953-51-0768-2

Počet stran výsledku

20

Strana od-do

1-20

Počet stran knihy

408

Název nakladatele

InTech

Místo vydání

Rijeka, Croatia

Kód UT WoS kapitoly

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