METHOD FOR HEAT TREATMENT CONTINUOUS TYPE HEATING FURNACE AND BATCH TYPE HEATING FURNACE

• Main Authors: ITO TAKAYUKI, SATO KENICHI, UESHIMA HIROTOSHI, YAMAMOTO SHUNSUKE, TANIYAMA KIMIO
• Format: Patent
• Language: English; Korean
• Published: 17.02.2023
• Subjects: BLASTING; CHEMISTRY; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; HEATING; KILNS; LIGHTING; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OPEN SINTERING OR LIKE APPARATUS; OVENS; RETORTS; WEAPONS

피처리물(W)을 노(10, 20) 내에서 가열 처리하는 가열 처리 방법에 있어서, 피처리물의 온도가 피처리물의 산화 온도 이하인 상태에서, 조연 가스에 산소를 이용해 연료 가스를 연소시키는 산소 연소에 의해 피처리물을 가열한 후, 조연 가스에 공기를 이용해 연료 가스를 연소시키는 공기 연소를 실시한다. In a heat treatment method for heat-treating a material W to be treated in a furnace 10, 20, in a state where the temperature of the material W to be treated is equal to or less than the oxidation temperature of the material W to be treated, the material W to be treated is heated by combustion of oxygen that combusts a fuel gas using oxygen as a combustion-supporting gas. Air combustion for combusting a fuel gas is performed using air as a combustion-supporting gas.