Improvements in Material Characteristics Core Centrifugally Cast Rolls

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...

Use of Titanium and Zirconium in a Centrifugally Cast Heat Resistant Steel

Split Cast Metal Post and Core

The best plan for success is to begin with the end in mind. It generally is agreed that the successful treatment of a badly broken down tooth with pulpal disease depends not only good endodontic therapy, but also on good prosthetic reconstruction of the tooth after endodontic therapy. The primary purpose of the post is to retain a core that can be used to retain definitive prostheses. A post an...

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...

Improvements to Reservoir Material-Balance Methods

Experience with material-balance data sets from the field and from simulation has revealed some procedures that can be used to improve analysis of both oil and gas reservoirs: • Failure to account for a weak waterdrive can result in significant material-balance errors. • The assertion of previous authors that weak waterdrive exhibits a negative slope on the Cole (gas) and Campbell (oil) plots h...