pk10计划平台

采用相應的方法盡量把變形量控制在盡量小的范圍內
欄目:閥門知識 發布時間:2019-12-07
熱處理工藝是使各種金屬材料獲得優良性能的重要手段。很多實際應用中合理選用材料和各種成形工藝并不能滿足金屬工件所需要的力學性能、物理性能和化學性能,這時熱處理工藝是必不可少的。

熱處理工藝是使各種金屬材料獲得優良性能的重要手段。很多實際應用中合理選用材料和各種成形工藝并不能滿足金屬工件所需要的力學性能 、物理性能和化學性能,這時熱處理工藝是必不可少的。

但是熱處理工藝除了具有積極的作用之外,在處理過程中也不可避免地會產生或多或少的變形,而這又是機械加工中必須避免的,兩者之間是 共存而又需要避免的關系,只能采用相應的方法盡量把變形量控制在盡量小的范圍內。

一、溫度的測量與控制

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二、控溫正火或等溫退火

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三、合理的冷卻方法

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四、合理的零件結構

金屬熱處理后在冷卻過程中,總是薄的部分冷得快,厚的部分冷得慢。在滿足實際生產需要的情況下,應盡量減少工件厚薄懸殊,閥門零件pk10计划平台截面力 求均勻,以減少過渡區因應力集中產生畸變和開裂傾向;

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五、合理的裝夾方式及夾具

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六、機械加工

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七、采用合適的介質

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