F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
F27B 5/04 (2006.01) C23C 8/24 (2006.01)
Patent
CA 2681885
The invention refers to equipment for chemical heat treatment of steels and alloys in gaseous mediums with automatic control. The unit comprises a heating furnace with/without a muffle, a process gas catalyst impact block located in the furnace, means of supply, mixing, proportioning and extraction of process gases and a device of indirect monitoring and control of the nitrogen potential in the furnace atmosphere. The device of indirect monitoring and control of the nitrogen potential in the furnace atmosphere is an oxygen sensor, a secondary transducer with indication of the nitrogen potential in weight units of nitrogen content in iron and an actuator, while the process gas catalyst impact block is located in the furnace on the process gas supply line. The technical result achieved when this invention is implemented is that that reliability and stability of processes is significantly increased, as well as period of nitriding is reduced due to integrated process automation available.
L'invention concerne des dispositifs de traitement physico-chimique d'aciers et d'alliages dans des milieux gazeux, avec commande automatique. L'installation de l'invention comprend un four de chauffage (avec un moufle ou sans moufle), une unité à action catalytique sur les gaz de service disposée dans le four, des moyens d'alimentation, des moyens de mélangeage, de portionnement et d'évacuation des gaz de service ainsi qu'un dispositif de contrôle et commande indirects du potentiel d'azote de l'atmosphère de four. Le dispositif de contrôle et commande indirects du potentiel d'azote de l'atmosphère du four se présente comme un capteur d'oxygène, un convertisseur secondaire à indication de potentiel d'azote en unités de poids d'azote dans le fer et un actionneur, et l'unité à action catalytique est disposée directement dans le four, sur la conduite d'alimentation en gaz de service. L'invention permet d'augmenter sensiblement la fiabilité et la stabilité des processus technologiques ainsi que de réduire le temps de nitrogénation grâce à une automatisation intégrée des processus.
Obshchestvo S. Ogranichennoi Otvetstvennoystyu "solnechnogorsky
Smart & Biggar
LandOfFree
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