Quenching and Tempering of Machine Tool Castings
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2022-03-30
It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with a low tendency to develop soft spots due to insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon-steel workpieces. It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with a low tendency to develop soft spots due to insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon-steel workpieces. It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with a low tendency to develop soft spots due to insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon-steel workpieces. It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with a low tendency to develop soft spots due to insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon-steel workpieces.
It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with little risk of soft spots caused by insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon steel workpieces. It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with little risk of soft spots caused by insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon steel workpieces. It is well known that the commonly used quenching media are brine, water, and oil. Workpieces quenched in brine readily achieve high hardness and a smooth surface, with little risk of soft spots caused by insufficient hardening; however, such quenching often leads to severe distortion and even cracking. By contrast, oil as a quenching medium is suitable only for certain alloy steels with relatively high stability of supercooled austenite or for small-sized carbon steel workpieces.
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2022/03/31
2022/03/31
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