磨牙螺帽丝锥在磨牙或开刃时,有可能出现磨退火,俗称磨“糊”了。人们错误的认为:磨“糊”了,再轻轻地磨一下就不 “糊”了。其实,磨退火的丝锥由于切削刃硬度低,丝锥很快被磨钝,切屑便牢固地粘附在牙的前面,造成丝锥“粘牙”而失效。最严重时,一只新丝锥仅加工几个螺母就“粘牙”了,造成很大浪费。我们对磨退火的9 SiCr钢丝锥,采取先中温回火后,再重新按常规的淬 Mozzarella nut taps in the molar or edged, there may be grinding annealing, commonly known as grinding “paste ” of the. People mistakenly think: grinding “paste ”, and then gently grinding is not “paste ” of the. In fact, due to the low hardness of the cutting edge, the tap is quickly blunt and the chip adheres securely to the front of the tooth, causing the tap “sticking tooth” to fail. In the worst of times, a new tap is a “waste tooth” with just a few nuts, causing a lot of waste. We grind the annealed 9 SiCr steel taps, take the first tempering at moderate temperature, and then re-conventional quenching