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Quality Heat Technologies, a world leader in fluidized bed reactor
technology, today announced that it has developed a new suite of
industrial equipment, under the brand name of Qab, for application of low temperature surface engineering treatments to dramatically improve the wear resistance of metal parts.
The Qab equipment combines patented technologies in fluidized bed
reactor design and proprietary low temperature diffusion chemistry
developed by Quality Heat Technologies in their research and development
department at Bayswater, Victoria.
The combination of the chemistry and fluidized bed technology, which is
based on diffusion at low temperature of metallic elements such as
chromium nitrogen and carbon into the base metal, opens up a completely
new field of surface engineering treatments for the metal user over a
broad spectrum of applications.
The wear-resistant surface treatments will be known under the generic name of Qab but will also be identified
by the basic metallic element which is diffused with carbon and nitrogen
into the metallic surface i.e. Qab-chromium or Qab titanium.
These high hardness, low temperature surface treatments, when applied in
such applications as tools used for die casting, cold forming and
forging as well as automotive component parts, can dramatically improve
service life.
The Qab equipment incorporates a number of significant design changes to
conventional fluidized bed equipment utilizing protective atmosphere
transfer hoods to maintain surface integrity, computer control and
special atmosphere fluidized bed seals.
Apart from the equipment being capable of performing the new Qab
processes it can be used for bright hardening of tool and stainless
steels, and performing normal surface treatments such as carburizing and
nitriding.
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