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1983年11月23日铁道部以(83)铁科技字1688号文颁布了《内燃机车常用金属材料》等四项部标准,即: TB1469—83《内燃机车常用金属材料》; TB1470—83《内燃机车常用紧固件》; TB1462—83《内燃机车柴油机调速系统一般技术条件》; TB8—83《机车车辆工厂企业标准幅面与格式》代替TB8—74。现将前三项简介如下: 1.《内燃机车常用金属材料》本标准是推荐性的材料选用标准。材料标准是重要的基础标准,材料标准化是零部件通
On November 23, 1983, the Ministry of Railways issued the four ministerial standards of “Common Metal Materials for Diesel Locomotives” (83) TIGC Zi No. 1688, namely: TB1469-83 “Common Metal Materials for Diesel Locomotives”; TB1470-83 “ TB1462-83 ”general technical conditions of diesel locomotive speed control system“; TB8-83 ”locomotive and rolling stock factory enterprise standard format and format“ instead of TB8-74. The first three are summarized as follows: 1. ”Diesel locomotive commonly used metal materials" This standard is recommended material selection criteria. Material standard is an important basic standard, material standardization is the parts pass