2. Tapered bores for keyed hubs shall have a minimum of 70% transfer of
bluing (surface contact) to the taper gage.
键槽轮毂的锥孔应至少有70%的着色(表面接触)转移到锥度计上?
3. Illustrated in detail the whole process and cautions of basic
bluing treatment from solution preparation, oxidization to operation procedure.
本文从溶液配制、氧化规范到操作程序,详细介绍了碱性发兰处理的全过程及其注意事项。