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  ①影響鍍前處理時用酸、用堿均不宜太強，且忌用鹽酸；②預鍍(或直接鍍)時若選擇簡單鹽鍍液類型，極易造成零件氧化而影響鍍層與基體的結合力，且零件受到腐蝕并將鍍液污染；③難以選擇大尺寸的滾筒，否則混合周期的影響較大，零件氧化嚴重。 (2)釹鐵硼產品為磁功能材料，任何表面涂覆都可能對其磁性能產生影響，所以如何協調鍍層的種類、組合及厚度等與產品磁性能的關系，是釹鐵硼電鍍的一大難點。 (3)釹鐵硼表面疏松多孔、粗糙不平，這不僅給鍍前處理帶來較大負擔，更主要的是預鍍(或直接鍍)工藝的選擇受到較大限制，即無法選擇鍍層結合力好、耐蝕性好但電流效率低的絡合物鍍液(如堿銅、檸檬酸鍍鎳、堿鋅等)。 (4)釹鐵硼材質脆性大，極易受到磕碰而損壞，這不僅增加工人操作上的困難，更主要的是難以選擇大尺寸的滾筒，從而影響勞動生產效率的提高。江西釹鐵硼永磁鐵