Abstract
Tool materials having high corrosion resistance as well as excellent mechanical properties and low density have recently been required for producing, for instance, seaming tool used for fixing a steel cap on different juices can. In case of seaming tools, it is well known that all sorts of juices leaking during the operation are apt to attack the tool materials, resulting in shortening the life time, especially, of seaming roll. Then, attending to titanium carbide based cermet, the study for developing the tool material as above was carried out.
It was suggested that TiC-55mass%(Ni-Mo-Cr) low carbon cermet containing about 25mass%Mo and 3mass%Cr in binder, was the most adequate for the material. In other words, the cermet showed a superior corrosion resistance, having HV900-1000 and transverse-rupture strength of about 2.1 GPa. These properties varied naturally according to sintering condition of the cermet.
