Up until now when talking about thermal analysis we have always described, from a technical point of view, the advantages of its application to evaluate the quality of different types of cast iron produced right before the definitive casting solidification.
We have not yet talked about the main advantages that the related equipment offers when applying thermal analysis; the thermal analysis software. Continue reading
The Cored wire is a wire made out of iron that can contain composition of different alloys. The alloys are mixed together to obtain the best cast iron transformation.
The treatments available through the use of Cored wire are treatments like spheroidization and inoculation. Continue reading
From the 80’s in order to guarantee reproducibility and constant quality in the cast iron transformation process, the practice of introducing the exact quantity of the alloy in ladle has expanded.
The introduction of the exact quantity is possible thanks to the use of an innovative system for the production of ductile iron also known as spheroidal cast iron and compacted graphite iron: the Cored wire system. Continue reading
How is it possible to interpret effectively the cast iron cooling curve?
Thanks to the registration of the cast iron cooling curve and its first derivative with equipment such as TCAST, thermal analysis software for cast iron, it is possible to identify some key temperatures that allow to determine the main phases of the cast iron solidification.
Hereafter the link to the video showing such fundamental phases: cast iron solidification through the use of thermal analysis. Continue reading
What is the inoculation process all about?
Inoculation: treatment conducted on base cast iron to guarantee a first transformation through an heterogeneous nucleation process adding in small quantities substances such as carbides, nitrides and oxides (nucleating agents).
In the previous article “Types of cast iron”, we have introduced the Fe-C phase diagram useful to determine firstly the influence of carbon in the basic Fe-C alloy.
In such article we had as well underlined how it was possible to distinguish, from the Fe-C phase diagram , for each type of cast iron 3 subdivisions by taking into account the carbon percentage in the chemical composition: eutectic cast iron, hypoeutectic cast iron and hypereutectic cast iron. Continue reading
The online magazine FoundryMag usually conducts an annual survey on a given number of North American foundries to be able to evaluate the outlook both for men and women working in this industry.
For the year 2016, the workers interviewed where divided by type of metal mainly manufactured within their company and as a result the workers interviewed appear to be divided as follows: Continue reading
The role of carbon in Cementite formation.
What is cementite?
Cementite, also known as iron carbide, is a particular compound (interstitial compound) given by a specific combination of iron and carbon. More precisely, by weight, Cementite is given by 93.3% carbon and 6.67% iron with a molecular formula Fe3C.
The cementite is then identifiable inside the Fe-C Diagram which we have talked about in the previous article “Types of Cast iron”. The Fe-C alloy is the basic alloy of all types of cast iron. Continue reading
A quale futuro va incontro l’industria fusoria?
Si avvicina la fine di questo 2015 e la sua conclusione porta le principali parti interessate, in questo periodo più di ogni altro, a prevedere e suggerire possibili scenari per il mercato dell’industria fondiaria e quindi anche per le fonderie di fusioni in ghisa per l’anno venturo, 2016.
Infatti, come constatato dal Foundry Trade Journal, una delle principali associazioni di categoria europee, l’associazione fonderie tedesca – Bundesverband der Deutschen Gießerei-Industrie eV (BDG), dichiara che la maggior parte dei produttori di pressofusione ha aumentato le vendite e la produzione nel 2014 e nel 2015 e si sente fiducioso di poter mantenere tale trend anche nel 2016. Continue reading