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qi gang gai lie wen fa sheng yuan yin yu jian cha xiu li fang fa
Author(s): 
Pages: 30
Year: Issue:  6
Journal: Farm Machinery Using & Maintenance

Abstract: 气缸盖的工作条件极其恶劣.气缸盖底面直接与高温、高压燃气接触,承受较高的周期变化的机械负荷与热负荷、燃气腐蚀与冲刷,产生很大的机械应力与热应力.缸盖裂纹是气缸盖常见的损坏形式. 1.故障现象 高压气体向水箱窜气,冷却水冒泡;冷却水渗入气缸,排气冒白烟,不易启动,工作不稳,功率下降. 2.发生的原因 (1)使用管理不当,在柴油机缺水、温度较高的情况下骤加冷水,或在冷态下急剧加热(柴油机启动后不暖机又急剧增加负荷)等,致使热胀冷缩而产生裂纹.
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