加大碟的問題! - 汽車改裝
By Yedda
at 2007-12-08T14:26
at 2007-12-08T14:26
Table of Contents
關於煞車碟盤的熱處理部份 經過我詢問相關的廠商
的確是不用熱處理 應該說不能做高溫淬火與回火的熱處理
淬火目的是得到麻田散鐵的結構 硬度很高
但是煞車盤使用的環境 是不斷的加熱到幾百度又冷卻
慢慢的又會轉化成肥粒鐵 根本失去淬火的意義
淬火大約是850-900度 用油浴或是其他液態急速冷卻
所以號稱八百度熱處理的碟盤
我個人認為是鑄件的正常化用的溫度
或是軟化退火的溫度左右
這樣的溫度並不能增加很高的強度
可能是降低強度到方便加工的範圍
要改變鑄鐵的組織構造 有固定的溫度與處理方式
而不是做幾度的熱處理 就可以承受幾度的意義
鑄件正常化的溫度大約是900度然後用強制風冷
這樣可以得到高品質的球墨鑄鐵 讓硬度可以再提升一些
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