鎢坩堝是鎢(wu)(wu)的制品之一，主要分為燒結成(cheng)(cheng)型(xing)，沖壓成(cheng)(cheng)型(xing)，旋(xuan)壓型(xing)，利用(yong)(yong)鉬棒車削加(jia)工(gong)(gong)成(cheng)(cheng)型(xing)，焊接成(cheng)(cheng)型(xing)多種，采用(yong)(yong)純鎢(wu)(wu)板，鎢(wu)(wu)片和純鎢(wu)(wu)棒經相應的工(gong)(gong)藝(yi)加(jia)工(gong)(gong)而成(cheng)(cheng)。可在2600度以下的真空(kong)惰性氣體中(zhong)使(shi)用(yong)(yong)。鎢(wu)(wu)的熔點、沸點高，高溫強度好，抗摩耐腐(fu)蝕(shi)，熱傳(chuan)導率大，熱膨脹系(xi)數小(xiao)，淬透性好，鎢(wu)(wu)坩堝(guo)廣泛應用(yong)(yong)于稀土冶煉，石英玻璃，電子噴(pen)涂，晶體生長等行業。