■15钢汽车高压油泵芯子的热处理

• 作 者: 刘学智
• 机 构: 西北机器厂,
• 出 处: 机械制造
• 发表日期: 1959年11期
• 关键词: 高压油泵 配合间隙 光洁度 配火 液体二氧化碳 汽车发动机 套筒 机械性能 奥氏体 片状珠光体

1958年我厂接受了依发H6(图1)及太脱拉J-111R汽车高压油泵芯子的生产任务。这种产品是汽车发动机上重要另件之一,系高精度配合偶件,油泵芯子与套筒的配合间隙要求在0.002～0.004毫米之间,光洁度在▽▽▽▽12级以上,芯子并应经过密封及滑合试验。由于它的光洁度和配合间隙等方面的要求很高,所以在热处理后的金相组织和机械性能也应严格要求,否则就会因内部组织不稳定而引起配合间隙的变化,产生漏油,或者间隙变小,发生高

In 1958, our factory accepted the production task of H6 (Fig. 1) and Torah J-111R high pressure hydraulic pump core. This product is one of the important parts of the car engine, high precision mating parts, pump core and sleeve with clearance requirements between 0.002 ~ 0.004 mm, finish at ▽ ▽ ▽ ▽ more than 12, the core And should be sealed and sliding test. Because of its high degree of finish and mating clearance requirements, the microstructure and mechanical properties after heat treatment should also be strictly required, otherwise it will lead to the change of the clearance due to the instability of the internal organization, resulting in oil leakage or The gap becomes smaller and higher