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通过对机车轴箱弹簧在预压和弹力试验中常发生批量失效报废的原因分析，采用了避免失效的工艺措施，使轴箱弹簧的质量得到了保证。
Through the analysis of the reasons why the axle box spring of the locomotive often fails to be scrapped in the pre-compression and the spring-force tests, the technical measures to avoid the failure are adopted to ensure the quality of the axle box spring.