The fabricating method of molybdenum ingot

• Main Authors: KWON NAM HUN, PARK KYOUNG TAE, KIM HYUN CHUL, SIM JAE JIN, LEE YONG KWAN, HEO SUNG GUE, SEO SEOK JUN
• Format: Patent
• Language: English; Korean
• Published: 07.06.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The purpose of the present invention is to provide a fabricating method of a molybdenum ingot, which enables melting and ingot growth while controlling the dissolving rate of molybdenum having a high melting point. Provided is a fabricating method of a molybdenum ingot, comprising the steps of: setting one or more of the output energy of an electron beam or the shape of the electron beam in an electron beam melting device; calculating the dissolving volume of molybdenum in response to the set electron beam; calculating the amount of a molybdenum material that is completely dissolved according to the dissolving volume and introducing the molybdenum material into a mold; irradiating the molybdenum material with the electron beam to melt; and forming a molybdenum ingot by drawing the molten molybdenum. 전자빔 용해장치에서 전자빔의 출력에너지 또는 전자빔의 형상 중 하나 이상을 설정하는 단계; 설정된 전자빔에 대응하여 몰리브덴의 용해부피를 연산하는 단계; 상기 용해부피에 따라 완전 용해되는 몰리브덴 소재량을 산출하여 몰드에 몰리브덴 소재를 투입하는 단계; 상기 몰리브덴 소재에 상기 전자빔을 조사하여 용융하는 단계; 및 용융된 몰리브덴을 인발하며 몰리브덴 잉곳을 형성하는 단계;를 포함하는 몰리브덴 잉곳 제조방법을 제공한다.