| 摘要:基于某柴油机巴氏合金轴套对冷装工艺适应性的要求，对其进行液氮冷却试验、低温箱冷却试验，检测结合强度、硬度、金相组织等性能变化情况。试验表明：巴氏合金轴套不适宜采用液氮冷装工艺，会造成巴氏合金与钢背脱离，造成失效；巴氏合金轴套可采用低温箱冷装工艺，适宜的冷装温度为70~80 ℃。 |
| 关键词: 巴氏合金 轴套 冷装工艺 |
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| Cold Assembly Process of Babbitt Alloy Bearing Bush |
| ZHONG Ning,WU Bo,XIN Qi,TU Liyue,CHEN Yonghong |
| Chongqing Yuejin Machinery Co.，Ltd，Chongqing 402160，China |
| Abstract:Based on the requirements of Babbitt alloy bearing bush of a diesel engine for the adaptability of cold assembly process，liquid nitrogen cooling test and low-temperature box cooling test were carried out to detect the performance changes of binding strength，hardness，metallographic structure.The test shows that：The Babbitt alloy bearing bush is not suitable for liquid nitrogen cold assembly process，which will cause the separation of Babbitt alloy from steel back and failure；Babbitt alloy shaft sleeve can adopt the cold assembly process of low-temperature box，and the suitable cold assembly temperature is 70~80 ℃. |
| Key words: Babbitt alloy bearing bush cold assembly process |
