英语翻译Cast iron is a general term applied to a wide range of i

英语翻译
Cast iron is a general term applied to a wide range of iron-carbon-silicon alloy combination with smaller percentages of several other elements.Cast iron has been used in various industrial fields.It is an iron containing so much carbon or its equicalent.It is not malleable.Quite obviously,cast iron has a wide range of properties,since small percentage variations of its elements may cause considerable change.Cast iron should not be thought of as a metal containing a single element,but rather,as one having in its composision at least six elements.All cast iron has still other elements,which shoudl not be thought of as impuriries,for they all have important effects on the physical properties.Pure iron,known as ferrite,is very soft and has few uses in industrial work.Regulating the elements other than ferrite in the cast iron controls all desirable properties,such as strength,hardness and machinability.
The cast iron family includes gray,ductile (also called nodular),white,malleable and hign-alloy irons.
Gray iron is itself a family of casting alloys,and it is the most widely used,with an annual production several time the total for all other metals cast.
A relatively new type of cast iron is ductile iron-also called nodular iron.As its name implies,ductile iron offers more ductility than gray iron,plus higher strenght.

铸铁是一个一般术语,适用于广泛的铁---碳硅合金与较小百分比的其他几种元素合成.铸铁已用于各种工业领域.它是包含太多的碳或其 equicalent 铁.它不可锻.很显然,铸铁具有广泛的属性因为小百分比的变动其内容可能会导致相当的变化.铸铁不应被认为包含单个元素的金属,而是,作为一个在其composision至少有六大要素.所有铸铁还有其他元素,这不应该被认为是impuriries的,因为它们都具有重要影响的物理性质.纯铁,如铁氧体,非常柔软,已很少使用在工业工作.在铸铁中的元素比铁素体的调节控制所有的优良特性,如强度,硬度和可加工.
铸铁家庭包括灰色,以球墨铸铁(也称为nodular)、白、可塑性和江苏省高合金铁头球杆.
灰铁本身是一个家庭合金铸件的,它是最广泛使用,年生产若干时间的总所有其他金属领衔主演.
一个相对新型铸铁球墨铸铁也称为球墨铸铁.顾名思义,球墨铸铁比灰口铸铁,加上较高的强度提供了更多的延展性.