Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-size combined yttrium oxide refractory crucible for titanium alloy smelting and preparation method thereof
The invention discloses a large-size combined yttrium oxide refractory crucible for titanium alloy smelting and a preparation method thereof, belongs to the field of application of oxide ceramic crucibles, and aims to reduce the influence of a high thermal expansion coefficient of a yttrium oxide (Y2O3) material crucible, improve the compactness, anti-scouring capability and strength of the crucible and reduce the sintering temperature of the crucible on the basis. The method comprises the following steps: adding 30-40% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 100-200 meshes, 35-40% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 300-400 meshes and 25-30% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 1-3 microns into a material mixing device, mixing for 3-5 hours at the mechanical stirring rotating speed of the material mixing device of 120-150 r/min, then adding grinding balls for ball milling to obtain mixed powder and further obtain a crucible split type monomer; sintered split type single bodies of the crucible are connected in a layered stacking mode, yttrium sol is adopted for bonding and reinforcing the joints of the single bodies to form the crucible, and the crucible has the advantages of being good in thermal shock resistance and ultra-long in service life.
大尺寸、组合式钛合金熔炼用氧化钇耐火材料坩埚及其制备方法，属于氧化物陶瓷坩埚应用领域，为了降低氧化钇(Y2O3)材料坩埚高热膨胀系数影响，提高坩埚致密性及抗冲刷能力和强度，且在此基础上能够降低坩埚烧结温度，将质量计30％～40％的粒度为100～200目氧化钇Y2O3电熔混合粉、35％～40％的粒度为300～400目氧化钇Y2O3电熔混合粉、25％～30％的粒度为1～3μm氧化钇Y2O3电熔混合粉，加入混料装置中，混料装置机械搅拌转速120～150r/min，混料3～5h，之后加入研磨球进行球磨，得到混合粉料并进一步得到坩埚分体式单体，将烧结后的坩埚分体式单体按照层次堆垛方式连接，单体连接处采用钇溶胶进行黏结加固成型坩埚，效果是具备良好的热冲击性能及超高的使用寿命的特性。
Large-size combined yttrium oxide refractory crucible for titanium alloy smelting and preparation method thereof
The invention discloses a large-size combined yttrium oxide refractory crucible for titanium alloy smelting and a preparation method thereof, belongs to the field of application of oxide ceramic crucibles, and aims to reduce the influence of a high thermal expansion coefficient of a yttrium oxide (Y2O3) material crucible, improve the compactness, anti-scouring capability and strength of the crucible and reduce the sintering temperature of the crucible on the basis. The method comprises the following steps: adding 30-40% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 100-200 meshes, 35-40% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 300-400 meshes and 25-30% by mass of yttrium oxide Y2O3 electric smelting mixed powder with the granularity of 1-3 microns into a material mixing device, mixing for 3-5 hours at the mechanical stirring rotating speed of the material mixing device of 120-150 r/min, then adding grinding balls for ball milling to obtain mixed powder and further obtain a crucible split type monomer; sintered split type single bodies of the crucible are connected in a layered stacking mode, yttrium sol is adopted for bonding and reinforcing the joints of the single bodies to form the crucible, and the crucible has the advantages of being good in thermal shock resistance and ultra-long in service life.
大尺寸、组合式钛合金熔炼用氧化钇耐火材料坩埚及其制备方法，属于氧化物陶瓷坩埚应用领域，为了降低氧化钇(Y2O3)材料坩埚高热膨胀系数影响，提高坩埚致密性及抗冲刷能力和强度，且在此基础上能够降低坩埚烧结温度，将质量计30％～40％的粒度为100～200目氧化钇Y2O3电熔混合粉、35％～40％的粒度为300～400目氧化钇Y2O3电熔混合粉、25％～30％的粒度为1～3μm氧化钇Y2O3电熔混合粉，加入混料装置中，混料装置机械搅拌转速120～150r/min，混料3～5h，之后加入研磨球进行球磨，得到混合粉料并进一步得到坩埚分体式单体，将烧结后的坩埚分体式单体按照层次堆垛方式连接，单体连接处采用钇溶胶进行黏结加固成型坩埚，效果是具备良好的热冲击性能及超高的使用寿命的特性。
Large-size combined yttrium oxide refractory crucible for titanium alloy smelting and preparation method thereof
大尺寸、组合式钛合金熔炼用氧化钇耐火材料坩埚及其制备方法
LIU GUOHUAI (Autor:in) / DANG QIAN (Autor:in) / WANG ZHAODONG (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
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