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锡的使用在铸造实践中已被公认能够使普通铸铁和球墨铸铁获得完全珠光体基体,促进硬度均匀性,以及提高灰铸铁的强度水平.耐磨用铸铁加锡后能得到改善.含有合金元素锡的铸件在高温下有抑制起氧化铁和尺寸增大的作用.此外,含锡灰铸铁改善铸件机械加工性能.
The use of tin in casting practice has been recognized as enabling a complete pearlite matrix for both normal and nodular cast iron to promote hardness uniformity and to increase the strength of gray cast iron.After abrasion cast iron with tin addition can be improved.Alloys containing alloying elements Tin castings have the effect of inhibiting the formation of iron oxide and increasing the size at elevated temperatures. In addition, tin gray cast iron improves the machinability of castings.