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熟鐵 (4361 views - Mechanical Engineering)

熟铁是含碳量小于0.02%的铁合金碳鋼,又称鍛鐵、纯铁(含碳量在0.02-2.0%称为钢,含碳量在2.0-4.3%则称生铁)。 熟铁由铁矿石用碳直接还原,或由生铁经过熔化并将杂质氧化而得到的产物;前者冶炼温度较低,采用比较早,后者温度虽然较高,但生铁去碳后由于熔点增高而变稠;两者都不易使渣和铁完全分离,所以熟铁中常含有少量的渣,在加工后显示纤维组织。 中国在春秋、战国时代已经使用生铁,估计熟铁的发展时间当更早。 熟铁较软,具有较好的抗腐蚀性,韧性和延展性较高,硬度和强度较低。
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熟鐵

熟鐵

熟铁是含量小于0.02%的合金碳鋼,又称鍛鐵纯铁(含碳量在0.02-2.0%称为,含碳量在2.0-4.3%则称生铁)。

熟铁由铁矿石用碳直接还原,或由生铁经过熔化并将杂质氧化而得到的产物;前者冶炼温度较低,采用比较早,后者温度虽然较高,但生铁去碳后由于熔点增高而变稠;两者都不易使渣和铁完全分离,所以熟铁中常含有少量的渣,在加工后显示纤维组织。

中国在春秋战国时代已经使用生铁,估计熟铁的发展时间当更早。

熟铁较软,具有较好的抗腐蚀性,韧性和延展性较高,硬度和强度较低。

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This article uses material from the Wikipedia article "熟鐵", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia

Mechanical Engineering

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