Tungsten carbide needles can be used in low temperature environments, but their performance may be affected. Specifically, the strength and hardness of tungsten carbide needles generally increase at low temperatures, but their toughness and ductility decrease. Therefore, when using tungsten carbide needles for low temperature machining, it is necessary to maintain an appropriate temperature and processing speed to avoid damage to the tungsten carbide needles. In addition, at low temperatures, tungsten carbide needles can also be used for some special applications, such as sample collection and processing in cryogenic experiments.
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