Button selection and season have a relationship? No way? In fact, the choice of metal buttons and the seasonal relationship can not be ignored. In the south, where the four seasons are not so great, it may not be possible to feel the changes of metal buttons in different seasons. However, in the four seasons in the north, it can be felt with touch.
In fact, all these are caused by temperature changes. The temperature difference between day and night in the north is relatively large, and some places can even reach 30 degrees Celsius. Not to mention the temperature difference in the four seasons, the temperature difference can reach the sum of the four seasons in the south.
In physics, metals perform different characteristics at different temperatures. For example, pig iron becomes brittle at low temperatures and breaks easily. A slight impact can cause iron buttons in metal buttons to become two halves. . So choose iron buttons in places where the temperature difference is large. Zinc buttons and iron buttons are similar in nature, easy to break in the case of sudden changes in temperature, the same must be carefully chosen.
The cadmium button is easily vaporized when the temperature is high, and it will cause some harm to the human body after vaporization. In places with high temperature, it is better not to select the cadmium button.
In the north, the temperature changes in summer and autumn are not as obvious as those in spring and winter. Therefore, when selecting metal buttons in spring and winter, pay attention to the chin!
For more information, please visit: China Button Industry Network
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