| 释义 |
退火tuì∥huǒ
1.金属工具使用时因受热而失去原有的硬度。{(of metal tools) losing original hardness when exposed to heat}
2.把金属材料或工件加热到一定温度并持续一定时间后,使缓慢冷却。退火可以减低金属硬度和脆性,增加可塑性。{anneal; heat metal or a work-piece to a fixed temperature for a fixed time, and allow to cool gradually, thus making it softer, less brittle and more malleable;}也叫also焖火{mèn∥huǒ}。 |