Prejudice is the wrong judgment made without careful understanding, as experienced by the editor& Flash; Due to bias, missing a good metallographic sandpaper resulted in a failure to improve work efficiency and quality in a timely and effective manner.


For a long time, the editor's laboratory has been using ordinary metallographic sandpaper to grind samples. The previous master taught me this, and the editor followed suit. Despite the master's retirement for more than two years, the editor still; Don't forget your original intention and refuse to change&# quo;, No matter how recommended the Chain Engineer is, the editor is muttering in his heart; You just want to make money from me. No matter how good the imported metallographic sandpaper is, can you make eight out of one? Hou Gui, who is the tiger& Rdquo;. I think I am very smart, but I politely prevaricate while continuing to grind the sample again and again every day.

    Until one day, the Chain Engineer brought me some metallographic sandpaper for me to try, and I commonly used models such as P180, P320, and P600. The abrasive used in these metallographic sandpapers is silicon carbide. The sandpaper appears to have a good manufacturing process, and the appearance is very fine, uniform, and textured to the touch. It is indeed different from what I use daily. Compared to the two, the appearance value is on the rise, but high appearance value does not count. It only counts if there is a good grinding effect. Without saying a word, a few colleagues in the laboratory gave it a try together. I carefully compared the data and took a look together:

    You don't have to know, you only know when you use it, good things are good things! Before using this imported metallographic sandpaper, the original feeling was quite good. I got used to grinding for a long time, and the sample was also qualified. It was only after using this imported metallographic sandpaper that I realized that there was still a lot of room for improvement in efficiency and quality. In addition, I also compared the service life, as the imported price is much more expensive than the one I used before. If the comprehensive cost of grinding the sample is similar, I would choose it, Otherwise, there would be no need.

    After repeated trials, it has been found that an imported metallographic sandpaper can be equivalent to the 3-5 sheets I used before. After calculation, the direct cost is similar and can be controlled within an acceptable range. Importantly, using imported metallographic sandpaper from Chain Energy can save time, improve grinding efficiency, and lay the foundation for providing more accurate data for metallographic analysis. This is even more touching.


Missing a good metallographic sandpaper due to bias has prolonged the time to improve work efficiency and quality. Although this matter is small, it has taught me not to have biases at any time, especially towards unfamiliar or unfamiliar things. The biggest characteristic of biases is to expose one's narrowness and superficiality. Only by being good at learning and overcoming shallow opinions can one help oneself grow. My lesson is shared with friends who are striving on the path of their dreams, and it is worth taking it as a lesson to avoid taking any detours.