1. When pickling the rivet nut, it is necessary to grasp the concentration of the acid solution, otherwise, the effect of pickling will not be obvious.
2. When quenching the rivet nut, use a silicate cleaning agent to clean the impurities attached to the surface, and then rinse it carefully to prevent impurities from remaining on the non-standard nut, which will affect the use of the non-standard nut. Effect.
3. After the rivet nut is tempered, its color may change. After soaking the non-standard nut in ether for a period of time, oily substances are found, indicating that the non-standard nut has not been cleaned.
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