Cast iron rolls

The manufacturing process of the rolling rolls, as well as the quality of materials used in casting them, can have an important influence upon the quality and the safety of the exploitation. Our approaches to the issue of quality assurance of the rolling rolls, from the viewpoint of the quality of m...

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Permalink: http://skupni.nsk.hr/Record/nsk.NSK01001061232/Details
Matična publikacija: Tehnički glasnik (Online)
13 (2019), 2 ; str. 92-99
Glavni autor: Kiss, Imre (Author)
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.31803/tg-20180516131304
Hrčak
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024 7 |2 doi  |a 10.31803/tg-20180516131304 
035 |a (HR-ZaNSK)001061232 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
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042 |a croatica 
044 |a ci  |c hr 
080 1 |a 669  |2 2011 
080 1 |a 54  |2 2011 
100 1 |a Kiss, Imre  |4 aut 
245 1 0 |a Cast iron rolls  |h [Elektronička građa] :  |b an overview on the proper hardness assured by the manufacturing process /  |c Imre Kiss. 
300 |b Graf. prikazi. 
504 |a Bibliografija: 10 jed. 
504 |a Abstract. 
520 |a The manufacturing process of the rolling rolls, as well as the quality of materials used in casting them, can have an important influence upon the quality and the safety of the exploitation. Our approaches to the issue of quality assurance of the rolling rolls, from the viewpoint of the quality of materials that are featured, can cause duration and safety in the rolling exploitation. This research is required because of the numerous flaws that cause rejection, since the phase of melting of these irons is intended to cast rolls. According to the industrial analysis in the cast iron rolls foundries, the results show that one of the main rejection categories is due to the inadequate hardness of the rolls. One of the parameters that will determine the cast iron’s structure is the chemical composition, and this factor could assure the exploitation properties of each roll in all the stands of rolling mill. In this sense, the paper presents an overview of industrial and laboratory research regarding the assurance of the chemical composition of the irons (with nodular graphite) destined for the half–hard rolls casting, and tries to draw some remarks upon the proper correlations of these irons. This study analyses iron rolls cast in combined moulds (iron chill, for the barrel and moulding sand, for the necks of rolls) and includes charges of rolls from half–hard classes, with definite structure and nodular graphite, obtained in simplex cast processes. It presents, in graphical form, the influence of the chemical composition of these irons on the hardness, measured on the barrel. The proper solution is determined through some mathematical restrictions to the input data that the mathematical modelling is initiated with. 
653 0 |a Lijevano željezo  |a Kemijski sastav  |a Tvrdoća  |a Modeliranje 
773 0 |t Tehnički glasnik (Online)  |x 1848-5588  |g 13 (2019), 2 ; str. 92-99  |w nsk.(HR-ZaNSK)000810940 
981 |b Be2019  |b B03/19 
998 |b dalo2005 
856 4 0 |u https://doi.org/10.31803/tg-20180516131304 
856 4 0 |u https://hrcak.srce.hr/221158  |y Hrčak 
856 4 1 |y Digitalna.nsk.hr