哪种铸铁减震性能最好?为什么?

2025-03-15 05:27:42
推荐回答(3个)
回答1:

减震性最好是灰口铸铁。
因为在灰铸铁中的碳,是以片状石墨形式分布,相当于在钢的基体上分布了许多微小裂纹,它的存在,可以阻断机械振动的传播。,因此它们多被用做机座或机床床身等,以减小机械振动,保证加工精度。

回答2:

  减震性最好是灰口铸铁。
  灰口铸铁(gray iron)是第一阶段石墨化过程充分进行而得到的铸铁,全部或大部分碳以片状石墨形态存在,断口呈灰暗色,因此得名,它包括一般灰口铸铁(简称灰铸铁)、球墨铸铁、麻口铸铁、孕育铸铁、稀土灰口铸铁等。灰口铸铁其断口的外貌呈浅灰色,故称为灰口铸铁(灰铁)。此价格便宜,应用广泛,灰口铸铁占铸铁的总产量80%以上。

回答3:

球墨铸铁是通过球化和孕育处理得到球状石墨,有效地提高了铸铁的机械性能,特别是提高了塑性和韧性,从而得到比碳钢还高的强度。球墨铸铁是20世纪五十年代发展起来的一种高强度铸铁材料,其综合性能接近于钢,正是基于其优异的性能,已成功地用于铸造一些受力复杂,强度、韧性、耐磨性要求较高的零件。球墨铸铁已迅速发展为仅次于灰铸铁的、应用十分广泛的铸铁材料。所谓“以铁代钢”,主要指球墨铸铁。

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