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Preparation method of aluminum nitride ceramic complex crucible for titanium alloy induction melting
The invention belongs to the related technical field of preparation of ceramic crucibles for titanium alloy induction melting, and discloses a preparation method of an aluminum nitride ceramic complex crucible for titanium alloy induction melting, which comprises the following steps: adding an activated sintering aid into aluminum nitride powder to obtain a mixture; putting the mixture and an organic solvent into a ball mill for ball milling and wet mixing; drying the ball-milled and wet-mixed slurry to obtain mixed powder, adding an organic binder into the mixed powder for granulation, and then grinding and sieving; the ground and sieved powder is put into a complex mold cavity to be subjected to cold isostatic pressing, and a complex crucible green body is obtained; sequentially degreasing the complex crucible green body in a degreasing furnace and sintering in an argon protective atmosphere to obtain the aluminum nitride ceramic complex crucible; the aluminum nitride ceramic material prepared by the method is subjected to density, titaniferous solution corrosion resistance and thermal shock resistance tests to verify the performance excellence of the aluminum nitride ceramic material. The preparation method can be used for preparing the complex crucible which is high in compactness, long in service life and resistant to titanium liquid corrosion.
本发明属于钛合金感应熔炼用陶瓷坩埚制备相关技术领域，其公开了一种用于钛合金感应熔炼的氮化铝陶瓷复杂坩埚的制备方法，方法包括在氮化铝粉末中加入活化烧结助剂得到混合物，将所述混合物和有机溶剂放入球磨机中进行球磨湿混；将球磨湿混后的浆料烘干得到混合粉末，在所述混合粉末中加入有机粘结剂进行造粒，随后进行研磨过筛；将研磨过筛后的粉末放入复杂模具型腔中进行冷等静压压制获得复杂坩埚生坯；将复杂坩埚生坯依次在脱脂炉中脱脂、在氩气保护气氛中烧结获得氮化铝陶瓷复杂坩埚；将上述方法制备的氮化铝陶瓷材料进行致密度、耐钛液耐蚀性和抗热震性测试，以验证其性能优异性。本申请可以制备高致密、长寿命、耐钛液腐蚀的复杂坩埚。
Preparation method of aluminum nitride ceramic complex crucible for titanium alloy induction melting
The invention belongs to the related technical field of preparation of ceramic crucibles for titanium alloy induction melting, and discloses a preparation method of an aluminum nitride ceramic complex crucible for titanium alloy induction melting, which comprises the following steps: adding an activated sintering aid into aluminum nitride powder to obtain a mixture; putting the mixture and an organic solvent into a ball mill for ball milling and wet mixing; drying the ball-milled and wet-mixed slurry to obtain mixed powder, adding an organic binder into the mixed powder for granulation, and then grinding and sieving; the ground and sieved powder is put into a complex mold cavity to be subjected to cold isostatic pressing, and a complex crucible green body is obtained; sequentially degreasing the complex crucible green body in a degreasing furnace and sintering in an argon protective atmosphere to obtain the aluminum nitride ceramic complex crucible; the aluminum nitride ceramic material prepared by the method is subjected to density, titaniferous solution corrosion resistance and thermal shock resistance tests to verify the performance excellence of the aluminum nitride ceramic material. The preparation method can be used for preparing the complex crucible which is high in compactness, long in service life and resistant to titanium liquid corrosion.
本发明属于钛合金感应熔炼用陶瓷坩埚制备相关技术领域，其公开了一种用于钛合金感应熔炼的氮化铝陶瓷复杂坩埚的制备方法，方法包括在氮化铝粉末中加入活化烧结助剂得到混合物，将所述混合物和有机溶剂放入球磨机中进行球磨湿混；将球磨湿混后的浆料烘干得到混合粉末，在所述混合粉末中加入有机粘结剂进行造粒，随后进行研磨过筛；将研磨过筛后的粉末放入复杂模具型腔中进行冷等静压压制获得复杂坩埚生坯；将复杂坩埚生坯依次在脱脂炉中脱脂、在氩气保护气氛中烧结获得氮化铝陶瓷复杂坩埚；将上述方法制备的氮化铝陶瓷材料进行致密度、耐钛液耐蚀性和抗热震性测试，以验证其性能优异性。本申请可以制备高致密、长寿命、耐钛液腐蚀的复杂坩埚。
Preparation method of aluminum nitride ceramic complex crucible for titanium alloy induction melting
用于钛合金感应熔炼的氮化铝陶瓷复杂坩埚的制备方法
LI YUANYUAN (author) / LI NING (author) / WANG RUYUAN (author) / ZHAO CHAO (author)
2023-04-07
Patent
Electronic Resource
Chinese
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