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】采用冶金加工技术，用离心浇铸法制备了Ｂｉ－２２１２相超导圆筒。该方法克服了固相反应法混合不均匀，反应不完整，样品重现性差和Ｔｃ较低的缺点；详细地研究了离心浇铸法的各项工艺参数（石墨模具、不锈钢模具的选择及其预热温度Ｔ、模具转速ｎ、物料熔化温度Ｔ），这种方法可以浇铸出任意尺寸的超导圆筒（Φ４５×４０～Φ６０×５０ｍｍ）。离心浇铸法的关键是确定铸型的转速（ｎ≥１０００ｒ．ｍｉｎ－１）、熔体熔化的温度（１０００℃～１１００℃）及其保温的时间（２０ｍｉｎ左右）和原料中粘结剂的选择，使按不同名义配比的物料（Ｂｉ∶Ｓｒ∶Ｃａ∶Ｃｕ＝２∶２∶１∶２；４∶３∶３∶４；１∶１∶１∶２）均能浇铸出结构致密、表面光滑、机械性能好的圆筒。在原料中加入适量的ＳｒＳＯ４，圆筒更易成型
】 Using metallurgical processing technology, prepared by centrifugal casting Bi-2212 phase superconducting cylinder. The method overcomes the defects of uneven mixing, incomplete reaction, poor sample reproducibility and low Tc in the solid phase reaction method. The technical parameters of the centrifugal casting method (graphite mold, selection of stainless steel mold and its pretreatment Hot temperature T, mold speed n, material melting temperature T), this method can cast any size of superconducting cylinder (Φ45 × 40 ~ Φ60 × 50mm). Centrifugal casting method is the key to determine the mold speed (n ≥ 1000r.min-1), the melting temperature of the melt (1000 ℃ ~ 1100 ℃) and its holding time (about 20min) and the choice of binder in the raw materials (Bi: Sr: Ca: Cu = 2: 2: 1: 2; 4: 3: 3: 4; 1: 1: 1: 2) can be cast in a compact structure, the surface Smooth, good mechanical properties of the cylinder. In the raw material by adding the right amount of SrSO4, the cylinder easier to shape