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螺纹标记是螺纹设计过程中的一项重要内容。根据最新国家标准,笔者主要介绍普通螺纹、管螺纹和米制锥螺纹的标记及应用。1普通螺纹的标记普通螺纹是机械工程中用途最广泛的一种坚固螺纹。目前,关于普通螺纹的系列国家标准共有10项。其中,除规定普通螺纹极限尺寸的国家标准GB/T15756-1995仍为1995年的版本以外,其余标准均为2003年修订的新版本。新标准对普通螺纹标记方法的规定较旧标准有较大差别,使用时应加以注意。
Thread marking is an important part of the thread design process. According to the latest national standards, the author introduces the general thread, pipe thread and metric taper thread marking and application. 1 ordinary thread mark ordinary thread is the most widely used mechanical engineering a solid thread. At present, a series of national standards on the general thread a total of 10 items. Among them, the national standards GB / T15756-1995 except the provisions of the general thread limit size is still the 1995 version, the rest of the standards are revised in 2003 the new version. The new standard on the provisions of the ordinary thread marking method has a larger difference than the old standard, should pay attention to when using.