液体氮化和气体氮化的区别如何

液体氮化和气体氮化的区别如何?发及应用 ?
2025-02-21 06:43:31
推荐回答(5个)
回答1:

1、应用不同

液体氮化:液体软氮化适用于耐磨及耐疲劳等汽车零件,缝衣机、照相机等如气缸套处理,气门阀处理、活塞筒处理及不易变形的模具处。

气体氮化:NH₃气体氮化,因为时间长表面粗糙,硬而较脆不易研磨,而且时间长不经济,用于塑胶射出形机的送料管及螺旋杆的氮化。

2、用的材料不同

液体氮化:液体软氮化处理用的材料为铁金属,氮化后的表面硬度以含有 Al,Cr,Mo,Ti元素者硬度较高,而其含金量愈多而氮化深度愈浅。

气体氮化:利NH₃气直接输进500~550℃的氮化炉内。

作用:增加钢件的耐磨性、表面硬度、疲劳极限和抗蚀能力。

扩展资料:

离子氮化:

离子氮化处理的度可从350℃开始,由于考虑到材质及其相关机械性质的选用处理时间可由数分钟以致于长时间的处理,本法与过去利用热分解方化学反应而氮化的处理法不同,本法系利用高离子能之故,过去认为难处理的不锈钢、钛、钴等材料也能简单的施以优秀的表面硬化处理。

冷却:

大部份的工业用渗氮炉皆具有热交换机,以期在渗氮工作完成后加以急速冷却加热炉及被处理零件。即渗氮完成后,将加热电源关闭,使炉温降低约50℃,然后将氨的流量增加一倍后开始启开热交换机。此时须注意观察接在排气管上玻璃瓶中,是否有气泡溢出,以确认炉内之正压。

等候导入炉中的氨气安定后,即可减少氨的流量至保持炉中正压为止。当炉温下降至150℃以下时,即使用前面所述之排除炉内气体法,导入空气或氮气后方可启开炉盖。

参考资料来源:百度百科-氮化处理

回答2:

渗碳和渗氮炉有气体,液体,固体之分。不知你的是什么样的,既然是井式炉,我想应该是液体或气体渗碳炉。它是将丙酮等有机物滴入炉内来进行渗碳,靠滴入速度来决定渗碳程度。渗氮是将液氨滴入炉内。它们的结构基本相同,但渗氮炉的构造比渗碳炉要复杂些,并且温度较低,只能达到650度。

回答3:

液体氮化也称软氮化,低温氰化,或者氮碳共渗,在渗氮过程中,碳原子也参与,因而比一般的单一气体渗氮具有更高的渗速,在渗层表面硬度相当的情况下,氮化层的脆性也比气体氮化小。再有两种氮化材料不同,液体主要是盐浴为主,其优点流动性会好些。表面防腐处理可以选择液体氮化或QPQ表面处理,安丘环能热处理材料做液体氮化、QPQ工艺处理,具体可以咨询他们。

回答4:

简单的说,液体氮化一般是软氮化;而气体氮化一般是硬氮化,当然也可做软氮化。而且气体氮化变形相对小于液体氮化。个人理解。

回答5:

在浅层氮化中,液体氮化的可控性比气体好

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