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鎢絲是怎么制作的呢?鎢絲有什么特性呢?

鎢絲的生產大都用仲鎢酸銨(APT)作原料。一般鎢絲廠家的工藝過程是將仲鎢酸銨在500℃左右的空氣中焙燒成三氧化鎢,或在450℃左右的氫氣中輕微還原成藍色氧化鎢。...