C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
C21D1/76—Adjusting the composition of the atmosphere
Landscapes
Chemical & Material Sciences
(AREA)
Engineering & Computer Science
(AREA)
Physics & Mathematics
(AREA)
Thermal Sciences
(AREA)
Crystallography & Structural Chemistry
(AREA)
Mechanical Engineering
(AREA)
Materials Engineering
(AREA)
Metallurgy
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)