The last decade has seen major strides in the development of processes
and equipment which will have a great influence on the way in which i
ndustrial heat treatment is conducted into the 21st century. Numerous
advances in atmosphere and vacuum heat treatment technology are leadin
g to the transition of furnaces into heat treatment machines capable o
f being totally integrated into manufacturing lines. This two-part pap
er reviews these advances, concentrating initially on atmosphere proce
ssing.