上一期我們介紹了“碳”对鑄鉄性能的影响,现在再来談談“硅”“錳”“磷”“硫”对鑄鉄性能的影响。四、硅是游离碳的亲家,錳是游离碳的寃家我們知道,鑄鉄中的渗碳体在鉄水冷凝过程中和鑄件退火加热保溫的过程中,都有分解成游离碳的傾向,这样就会改变鑄鉄的机械性能。那么其他元素对滲碳体的分解过程起着什么作用呢?是帮助和促进它的分解呢,还是 In the previous issue, we introduced the effect of “carbon” on the properties of cast iron. Now we will discuss the influence of “silicon”, “manganese”, “phosphor” and “sulfur” on the properties of cast iron. Fourth, silicon is a free carbon relatives, manganese is the enemy of free carbon We know that casting cement in the cementitious cement casting process in the condensation and casting annealing heat insulation process, there is a tendency to break down into free carbon, so It will change the mechanical properties of castings. Then what other elements of cementite decomposition process plays a role? It is to help and promote its decomposition, or