2007
DOI: 10.3139/146.101575
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Silicon nitride tools for hot rolling of high-alloyed steel and superalloy wires – load analysis and first practical tests

Abstract: For hot rolling wires of high-alloyed steels or superalloys tools are nowadays made of cemented carbides. In service they suffer from roughening of the surfaces and severe wear, which deteriorates the surface quality of the wires and restricts the lifetime of the tool. Due to their high hardness and good high-temperature properties, improvements of tool behaviour can be expected by the use of ceramic. In this paper the suitability of silicon nitride as material for rolls is investigated.The thermal and mechani… Show more

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Cited by 9 publications
(19 citation statements)
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“…in the case of the coefficient of thermal expansion, CTE) the parameters are assumed to be temperature independent but worst case scenarios are used. For details see [10,11]. …”
Section: Modelled Situation and Model Assumptionsmentioning
confidence: 99%
See 4 more Smart Citations
“…in the case of the coefficient of thermal expansion, CTE) the parameters are assumed to be temperature independent but worst case scenarios are used. For details see [10,11]. …”
Section: Modelled Situation and Model Assumptionsmentioning
confidence: 99%
“…In the rolling process a given position on the roll groove surface is in contact with the hot wire (1060 °C) only on a short part of the circumference [10,11]. The contact time with the wire is about 2·10 -3 s. The rest of the revolution (82·10 -3 s) this position is cooled by water.…”
Section: Temperature Fields and Thermal Stressesmentioning
confidence: 99%
See 3 more Smart Citations