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每种钢材在打磨时的火花是不同的,所以,如果你不确定到底是什么钢材的,可以看看打磨时的火花,就能很容易识别出来。
棉铁
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棉铁火花示意图:
棉铁含碳量极低,火花束成弧形,开叉极少。
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低碳钢
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低碳钢火花示意图:
低碳钢火花束长、平,开叉较少。
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中碳钢
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中碳钢火花示意图:
中碳钢火花束短、平,开叉较多。
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高碳钢
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高碳钢火花示意图:
高碳钢火花束很短,开叉极多,几乎每根火花都开叉。
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弹簧钢
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弹簧钢火花示意图:
弹簧钢火花束开叉后,尾端会形成弧线。
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高速钢
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高速钢火花示意图:
高速钢火花束极短,开叉少,火花束呈紫红色,因为高速钢含钨。
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