MPD Welding-GR, Inc. uses "Big Nitro,” our unique nitrogen atmosphere furnace that was built in-house that has the capability of stress relieving and color matching molds and dies with 0 % oxidation. Our customers find this service to be a significant money saver particularly on last minute engineering changes that require color match.
With interior dimensions of 8' wide, 6' high and 12' deep, it can handle a wide variety of different sized molds and dies.
Several additions and modifications have been made to Big Nitro since its initial start-up. Some of these include the addition of another 50 feet of finned cooling tubes, a larger capacity liquid nitrogen holding tank, and a fancy new paint job. Preventative safety features have also been installed to prevent any damage to the workload in case of a malfunction.
Initial expectations for temperature uniformity have been met and sustained, keeping it +/- 10 degrees inside the chamber. Uniformity tests have been done by Honeywell to confirm this.
While most of the jobs done in Big Nitro are for bright tempering or color matching mold steels, several bright annealing loads have come out excellent. Compared to tempering loads, the brightness of the annealing loads have turned out much better.
Contact MPD Welding-GR, Inc. today at 616-248-9353 for all of your Grand Rapids, MI steel treating services needs.
