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紅河鑄鈦件鋼質模鍛件測試

信息編號:63925436 發布時間:2025/8/11 10:22:52
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流動性和充填性
是指充填鑄型、清晰復制鑄型內腔輪廓的能力。
1.合金元素的影響
合金的結晶溫度區間變寬和表面張力及粘度提高、潤濕性變差的合金元素,都會使流動性和充填性變差。如Si、Fe、Mn、Cu等元素。
2鑄型性能
熱導率和熱容量小的鑄型流動性好。材料相同的情況下,表面粗糙度小的好于粗糙度大的鑄型。潤濕性好的鑄型材料,鈦液充型前端的液面凹型彎月面,反之前端成凸起彎月面,充填受阻。鈦對石墨的潤濕性 。
鑄型預熱溫度有助于充填,但不能過高。
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