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Heat Treating Process Improvement

Rapid Carburizing™

Power Plant Control

Continuous Improvement
and Process R & D

Additional Applications

Advantages & Benefits

Case Study:
Dana Corporation



Rapid Carburizing™

The process innovation we call Rapid Carburizing™ has its beginning at a large manufacturer of automotive parts with a challenging goal: to increase the through-put on its carburizing lines by 20 percent.

There was incentive. If they could increase the through-put of their two newer furnaces by 25 percent each, they would be able to shut down their oldest, least stable and least energy efficient furnace.

Process time was identified as the most tractable variable for improving the productivity of the newer furnaces.

The existing process times had been set to assure adequate treatment of the parts at the typical gas atmosphere concentrations in the furnaces during a conventional hardening process.

ARI’s furnace audit showed that the gas concentrations could be optimized if a multi-gas real-time process control were installed.

Desired Gains and More

A Laser Gas Analyzer was installed to monitor the process, and process control protocols using the new data streams were developed and implemented. The desired process reductions and 20 to 50 percent productivity gains were obtained, depending on specified case depth.

Later implementations at other locations and other companies achieved similar results.

The accurately controlled atmospheres achieved the desired properties. The significant time reductions consistent over a number of cases suggested the LGA-monitored processes had earned the right to be distinguished from conventional processes, and the name Rapid Carburization was born.

Contact ARI for help identifying the ARI gas atmosphere control system that could achieve significant gains in quality and efficiency through the use of Rapid Carburizing processes.


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