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減小濃度、溫度對高強度NM400耐磨鋼管猝火冷速的影響

更新時間:2020-03-24 13:35點擊次數:
水性PAG淬火液通過控制其濃度、溫度及攪拌來控制高強度NM360耐磨鋼管的冷卻能力,得到介于水跟油之間的冷卻范圍。那么如何控制濃度、溫度、流速對淬火液冷速的影響。

      1、濃度對冷速的影響
      濃度與冷速成反比,濃度增加冷速降低,反之濃度降低冷速增加。所以假如想增加冷速,則加自來水使濃度降低,反之則添加淬火液濃度增加,冷速下降。

      2、溫度對冷速的影響
      簡單點說溫度越高,冷速越低,溫度越低冷速越高。所以要增加冷速,就可以在生產中對淬火劑冷卻,降低溫度,反之加熱或停止冷卻循環,增加淬火劑溫度,便可降低淬火冷卻速度。

      3、攪拌對冷速的影響
       攪動淬火液(包裝擺動的高強度耐磨鋼管工件)可以增加其淬火冷速,反之降低淬火冷速。
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