Compacted Graphite Iron Castings Production
Our diverse customer base has also given us experience in a wide range of applications for compacted graphite iron castings , including pumps and valves, forges, foundries and rolling mills, automotive and aerospace, a wide range of OEM’s, quarries and mines, railways and rolling stock, local authorities and artists and sculptors. We also have long term trading relationships with local pattern makers, machine shops and surface finishers which enable us to quote for the complete supply of the finished casting.
CGI is produced by treating the melt as if ductile cast iron was being made, but the reaction is ‘killed’ before it has time to complete, resulting in a graphite shape between that of flakes and spheres. A special type of ladle addition known as Compact Mag is used to achieve the desired reaction. The first commercial CGI applications were the high-speed rail trains (175+ mph) in Europe. Initially, they had cast iron disc brakes that were simply not up to the task. They suffered severe heat-checking and cracks, which were potentially catastrophic. CGI cured all that, and it has been widely reported that several engine builders and automotive manufacturers are beginning to rely on CGI to meet efficiency and strength requirements.
Please browse our website for more information about Durham Foundry and our ability to manufacture Compacted Graphite Iron Castings (CGI Castings) and then contact us on 0114 249 4977 or e-mail us on e-mail us on firstname.lastname@example.org.