几年前,我国铁道部门从日本某公司购进80余台铁道电力机车。在运行中,发现机车的齿轮箱质量不佳,有的漏油,有的则在很短时间内就产生裂纹,修复又很困难,影响了机车的正常使用。日本公司方面无奈,只好重新设计制作。 为了试制新的齿轮箱,日方公司的有关人员经过认真调查研究后,确定在中国 A few years ago, China’s railway department purchased more than 80 railway electric locomotives from a Japanese company. In operation, the locomotive gearbox found poor quality, some oil spills, and some cracks in a very short period of time, it is very difficult to repair, affecting the normal use of the locomotive. Japanese companies helpless, had to re-design production. In order to trial a new gear box, the Japanese company’s relevant personnel after careful investigation, determined in China