{"number":"CN104480319A","kindCode":"A","documentType":"publication","title":{"original":"一种射频超导腔用高纯铌铸锭的制备方法","english":"A method for preparing high-purity niobium ingot for radio frequency superconducting cavity"},"abstract":{"original":"本发明公开了一种射频超导腔用高纯铌铸锭的制备方法，该方法为：对铌板条进行3～7次真空电子束熔炼，得到高纯铌铸锭；所述真空电子束熔炼的比电能为8度/kg～12度/kg，真空度不大于5×10-3Pa。本发明设计合理、方法简单、操作简便，能有效解决传统铌铸锭生产工艺所存在的实际问题，达到稳定化、批量化生产射频超导腔用高纯铌铸锭的要求，采用3～7次真空电子束熔炼，通过控制比电能，制备的铌铸锭的RRR值和成分均符合射频超导腔用高纯铌铸锭的要求。","english":"The invention discloses a preparation method of a high-purity niobium ingot casting for a radio frequency superconducting cavity. The preparation method comprises performing vacuum electronic torch melting on a niobium batten for 3-7 times, thereby obtaining the high-purity niobium ingot casting; the specific electric energy of the vacuum electronic torch melting is 8-12 degrees per kilometer, and the vacuum degree of the vacuum electronic torch melting is not greater than 5*10<-3>Pa.…"},"applicants":["Northwest Institute For Non-Ferrous Metal Research"],"inventors":["张英明","郭学鹏","席恩平","王娟","吝靖玉","谭江"],"filingDate":"2014-12-17","publicationDate":null,"grantDate":null,"verifiedWithOffice":false,"pdfUrl":"https://downloadpatent.com/pdf/CN104480319A.pdf","pages":{"en":"https://downloadpatent.com/patent/CN104480319A","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/CN104480319A","ja":"https://downloadpatent.com/ja/patent/CN104480319A"}}