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正火軋制與軋制和熱機械軋制的區別
發布時間:2018-07-28 08:52瀏覽次數:
1.正火軋制
在一定的溫度范圍內進行最后變形的軋制工藝,導致一種材料條件等于正火后獲得的條件, 這樣即使在正火后也可保持機械性能的特殊值。
該交貨條件的縮寫形式是+N。
注:在資料性出版物中,對于正火軋制及熱機械軋制兩種情況,可能用“控制軋制”表示。然而,從產品不同適用性的觀點來看,對術語加以區別是必要的。
2.軋制
該交貨條件沒有任何特殊軋制和/或熱處理條件。該交貨條件的縮寫是+AR。
3.熱機械軋制
在一定的溫度范圍內進行最后變形的軋制工藝,導致一種材料經有單獨通過熱處理不能獲得或重復的某些特性。
注 1:在 580°C 以上連續加熱可降低強度值。如果需要在 580°C 以上的溫度,應向供貨商提供參數。
注 2:軋制導致交貨條件 M 的熱機械可能包括增加冷卻率工藝,有或沒有回火,包括自回火, 但不包括直接淬火和淬火與回火。
注 3:在某些出版物中,也采用 TMCP 這樣的字符(熱機械控制工藝)。
 
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