Since writing my first article on dew point versus oxygen analysis in May 2016, we have experienced multiple rounds of brutal heat and humidity that prompted advisories and warnings from Massachusetts to Missouri.
Carbonitriding studies with a high amount of nitrogen are characterized by adding ammonia to the process gas at a higher rate than the usual 3-5%. This work focuses on the impact of nitrogen on the lifetime of carburized parts (e.g. gears, sprockets, bearings, crankshafts) exposed to Hertzian pressure or fatigue.
James R. Stull was not pleased with the local heat-treating industry in southern California back in 1957. So, instead of complaining about it, the tool and die maker did what was necessary – he started his own business.
The 2017 April issue of Industrial Heating features our cover story, a comprehensive list of combustion resources, as well as part 2 of our rimfire firing-pin indent copper crusher series, and much more.