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February 2019

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Solar Atmospheres of Western PA Commissions Large Car Bottom Air Furnace

Solar Atmospheres has installed a new 20' long car bottom furnace with a total load capacity of up to 30,000 lbs. The inaugural run of six 4140 rolls weighed a total of 12,000 lbs.

Solar Atmospheres of Western PA commissioned a new 20' long car bottom furnace that has a total load capacity of up to 30,000 lbs. The Class 2 furnace, built by John Becker's Heat Treat Equipment Inc., located in Canton, MI, was installed and fully tested for the first time in Hermitage, PA. The 60" square x 240" hot zone envelope passed the stringent AMS 2750E Temperature Uniformity Survey (TUS) of +/- 10 °F from temperatures of 300 °F - 1,450 °F. The survey passed on the very first attempt and was put into production immediately.

This new piece of equipment will serve to complement Solar's lower temperature work - especially where surface oxidation is of little concern. It will also be used to economically process many downstream processes, including multiple tempering operations, which typically follow vacuum austenitizing treatments.

The inaugural run of six 4140 rolls weighed a total of 12,000 lbs. The rolls are used for a variety of steel making industries from forming angles to rolling rebar. The rolls' working circumferences of the major diameters are made from crucible powdered metal (CPM 9V). The consolidated powdered metal on the major diameters is Hot Isostatically Pressed (HIP'ed) and thus must be hardened. Following the vacuum austenitizing treatment at 2,075 °F, the rolls are quickly nitrogen quenched. It is necessary to immediately temper the resultant HRC 60 surface hardness on the major diameters. Instead of reloading back into Solar's large vacuum furnaces, the rolls are now transferred to this newly acquired air furnace for triple tempering operations ranging from 1,000 °F to 1,150 °F, saving valuable vacuum furnace time.

Bob Hill, President of Solar Atmospheres of Western PA, stated, "Today we have acquired an excellent piece of equipment that will keep metal flowing in and out of our state of the art facility. Every employee remains laser focused to achieve our ultimate goal - 100% on time delivery (OTD) to all of our customers. This furnace will enable us to get there."

For more information contact:

Solar Atmospheres of Western PA

30 Industrial Road

Hermitage, PA 16148

866-982-0660 / 724-982-0593

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