Purpose: This machine is used to test film hardness through the pencil hardness of plow-breaking paint film pencil.
用途：通过犁破漆膜的铅笔硬度等级测定漆膜硬度。
The latex with higher core T_g has more obvious core-shell structure, and the pencil hardness of the film is higher.
较高的核玻璃化温度则有利于形成明显的核壳结构乳胶粒子，且有助于漆膜硬度的提高。
The scratch resistance of tinplate was measured by using modified QHQ type pencil hardness test apparatus which is designed for organic paint coating.
移植QH Q型涂膜铅笔划痕硬度仪用来测试电镀锡板的抗划伤性。
The result showed that when photo-initiator 184 and photo-initiator 1173 were mixed 2:1 by mass, the coating has high pencil hardness and excellent abrasion resistance.
结果表明，光引发剂184与光引发剂1173以质量比2：1复配使用可以很好的提高涂层的铅笔硬度以及耐磨性；
After experimenting for eight days, he discovered that firing powdered graphite with clay would work, and the hardness of the pencil lead could be varied by varying the ratio of graphite to clay.
他做了八天实验，发觉把石墨粉末和黏土一起烧，就可奏效。笔芯的硬度还会依石墨和黏土的比例而改变。
After experimenting for eight days, he discovered that firing powdered graphite with clay would work, and the hardness of the pencil lead could be varied by varying the ratio of graphite to clay.
他做了八天实验，发觉把石墨粉末和黏土一起烧，就可奏效。笔芯的硬度还会依石墨和黏土的比例而改变。
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