A Stydy about Investment for Titanium Alloy.

钛合金投资研究。

• 批准号: 01571065
• 负责人: TAKAHASHI Junzo
• 金额: $ 0.96万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01571065/
• 关键词: Titanium; Casting; Investment; Reacted layer; Hardness; Quartz; Cristobalite; チタン用鋳型材; リン酸塩系埋没材; 鋳造精度

Pure titanium was cast into five different phosphate-bonded SiO_2 investment mold materials (at 350^ﾟC) with an argon-arc melting and pressure casting machine. The mesh castability, the fit of the MOD inlay castings, and the Knoop hardness and the micro-structure in cross-sections of castings were examined. The setting and thermal expansion, the compressive strength, and the x-ray diffraction analysis of the investments were also measured. The castability, the fit, and the thickness of reacted layer differed in degree among these investments, in spite of the same phosphate-bonded SiO_2-type investment. This result may be related to the cristobalite/quartz ratios of these investments, as estimated from the thermal expansion curves. Quartz-type and cristobalite-type phosphate-bonded investments were made. Molten titanium reacted more severely with the cristobalite-type than with the quartz-type investment molds.

采用氩弧熔炼压铸机将纯钛熔入5种不同的磷酸盐键合SiO_2熔模材料（350^ C）中。考察了MOD镶嵌铸件的网状浇注性能、配合度、努氏硬度和铸件截面的显微组织。测定了熔敷物的凝固、热膨胀、抗压强度和x射线衍射分析结果。在相同的磷酸盐键合sio_2型投料条件下，不同投料的浇注性能、配合度和反应层厚度均有不同程度的差异。这一结果可能与这些投资的方英石/石英比率有关，根据热膨胀曲线估计。进行了石英型和方英石型磷矿结合型投资。熔融钛与方英石型熔模的反应比与石英型熔模的反应更剧烈。

项目成果

J.Takahashi, H.Kimura etal.: "Casting Pure Titanium into Commercial Phosphateーbonded SiO_2 Investment Molds" Journal of Dental Research. 69. 1800-1805 (1990)

J.Takahashi、H.Kimura 等人：“将纯钛铸造到商业磷酸盐粘合的 SiO_2 熔模模具中”《牙科研究杂志》69。1800-1805 (1990)。

J. Takahashi, H. Kimura, E. P. Lautenshlager, J. H. Chern Lin, J. B. Moser and E. H. Greener: "Casting Pure Titanium into Commercial Phosphate-bonded SiO_2 Investment Molds" J. Dent. Res. 69. 1800-1805 (1990)

J. Takahashi、H. Kimura、E. P. Lautenshlager、J. H. Chern Lin、J. B. Moser 和 E. H. Greener：“将纯钛铸造到商用磷酸盐结合的 SiO_2 熔模模具中” J. Dent。

J.Takahashi,H.Kimura etal.: "Casting Pure Titanium into Commercial Phosphateーbonded SiO_2 Investment Molds" Journal of Dental Research. 69. 1800-1805 (1990)

J. Takahashi、H. Kimura 等人：“将纯钛铸造到商业磷酸盐粘合的 SiO_2 熔模模具中”《牙科研究杂志》69. 1800-1805 (1990)。

J.Takahashi: "Casting Pure Titanium into Commercial PhosphateーBonded Sio_2 Investments Molds" Journal of Dental Research.

J. Takahashi：“将纯钛铸造成商业磷酸盐－粘合 Sio_2 投资模具”《牙科研究杂志》。