Cast iron rolls

Bimetallic Cast Iron Rolls – Some Approaches to Assure the Exploitation Properties

Although the manufacture of rolls is in constant improvement, the requirements for superior quality rolls have not yet been completely satisfied, in many cases the absence of quality rolls preventing the realization of quality laminates or of productivity of which rolling mills are capable. In the selection of materials several factors have to be considered including the type of rolling mill, t...

Monitoring of Centrifugal Cast Rolls Using Acoustic Emission

The seven centrifugal cast rolls were on-line monitored by using acoustic emission (AE) method till seven days after pouring. AE technique is suitable method, since the signal is generated naturally by abrupt localized changes in stress in a solid [1]. The aim of this work was to optimize the cooling rate and to investigate the effect of scrap quality (for melting process) on the internal quali...

Cast Iron Metallurgy

Cast iron (CI) is one of the oldest materials in commercial use. It has excellent compressive strength and is commonly used for structures that require this property, as well as for water and sewer lines. This article explains CI metallurgy and why the understanding of this metallurgy is key to understanding other ferrous materials and alloys. The composition of cast iron (CI) varies significan...

Gray cast-iron water pipe metallurgy

The results of a metallographic study of grey cast iron water pipes are reported. These pipes had been installed between 1885 and 1973 in eight different water systems. Each pipe had been extracted during scheduled maintenance or failure repairs to provide data for a larger study to produce a methodology for determining the residual life of grey cast iron pipes. This metallographic study was co...

Circumferential failures in grey cast iron pipes