按ГOCT1623—46螺纹量规中各主要原素之公差,评定螺纹量规的质量,应该注意两个问题,一个是牙廓半角公差的问题,另一个是螺纹塞规各主要原素误差的相互补偿的问题。牙廓半角公差的问题牙廓半角公差与螺距的关系,在标准的附注中曾指出:“半角偏差由两半角偏差的绝对 According to ΓOCT1623-46 thread gauges in the tolerance of the main elements, assess the quality of the thread gauge, should pay attention to two problems, one is the problem of teeth half-width tolerance, and the other is the thread plug gauge error of the mutual compensation of the major elements problem. The problem of half-width tolerance of tooth profile The relationship between half-width tolerance of tooth profile and pitch is pointed out in the standard note: "The half-width deviation is determined by the absolute value of the deviation