Introduction of the HexaPass®, a brand-new RCS that reduces odor generated in the casting process
Overview
Forming and casting in the shell mold method generates phenols, formaldehyde, ammonia and amines to produce a peculiar odor. Efforts had long been made to suppress the odor but the conventional low-odor RCS had some drawbacks, such as insufficient reduction of the odor level and a low hardening velocity, which meant a long forming time and poor productivity.
HexaPass® is a new type of RSC that has resolved these issues. We have developed a hardening mechanism free of hexamine, which caused the foul odor, to significantly lower odor and smoke levels. It also achieves a hardening velocity equivalent to the conventional hardening method using hexamine to ensure mold production in a forming time equivalent to that with the general type of RCS. In addition, the quality of hollow cores produced in the reverse sand elimination method has improved.
Forms
Sand
Features
Odor concentration reduced with a hardening mechanism independent from hexamine
● Low odor: The odor level measured in The triangle odor bag method fell to around one sixth The level with The conventional RCS (hexamine hardening)
● Low irritation: Generation of irritant ammonia and formaldehyde massively cut
● Low smoke: smoke Generation reduced at The time of forming
● Resistant to peel back: Padding reduced in hollow core production by The reverse sand elimination method
● Low gas emission: gas emissions reduced from The conventional RCS with The same amount of resins
● Quick hardening: The same forming cycle as that with The conventional RCS maintained
