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一、前言 为了适应石油化学工业高速度发展的新形势,提高石油机械易损零部件的使用寿命,我们在局党委正确领导下,于一九七三年试验成功了碳氮硼三元共渗新工艺。 在我们的试验过程中,全国各兄弟单位给予我们许多指导和帮助,给我们提供了许多宝贵的经验,在此我们表示衷心的感谢。为了有利于我们今后的试验工作和生产实践,为了更
I. Preface In order to adapt to the new situation of high-speed development of petrochemical industry and improve the service life of fragile parts and components of petroleum machinery, under the correct leadership of the Party Committee of the State Administration of Petroleum Industry, we successfully tested the carbon-boron-boron ternary permeation test in 1973, New Technology. In the course of our experiments, the brothers and sisters throughout the country gave us a lot of guidance and help and provided us with many valuable experiences. We hereby express our heart-felt gratitude. In order to facilitate our future experimental work and production practices, in order to more