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鋳造精度に関する研究 : その5 リング内の埋没材の膨張傾向の均一化について
https://mdu.repo.nii.ac.jp/records/41
https://mdu.repo.nii.ac.jp/records/4153001b5d-4d24-4ef9-8187-7e16b46d06b1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
matsumoto_shigaku_02-01-05.pdf (792.4 kB)
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| Item type | Journal Article(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2012-04-27 | |||||||
| タイトル | ||||||||
| タイトル | 鋳造精度に関する研究 : その5 リング内の埋没材の膨張傾向の均一化について | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| その他（別言語等）のタイトル | ||||||||
| その他のタイトル | Studies on the Accuracy of the Casts : Part 5. On the making uniform to expand the investment for various directions in the ring | |||||||
| 著者 |
永沢, 栄
× 永沢, 栄
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | This report is described on the factors affecting to the distortion of the castings. They are thought to be setting expansion or hygroscopic expansion, thermal expansion of the investment, casting shrinkage of the alloys and others. Authers had studied on amounts of the distortion caused by the factors. Oblong wax patterns, having 30mm width, 20mm hight and 1.5mm thickness, indented by the guage line, were prepared and embeded in casting rings. The castings was produced with three kinds of alloys having various casting shrinkage and was casted in the investment mold heating at 600℃ or holding at room temperature. The effect of hygroscopic expansion was compared between the use of wet asbestos linning and the use of Kaowool linning that inhibited it. Results obtained were as follows. 1. Most of castings were distorted like the beer barrel. 2. The distortion of the castings was founded on the defferences of each casting shrinkage due to its situation in the ring. 3. The setting expansion was caused from 0.5% to 0.8% for longitudinal direction, but it was about 0.35% for lateral one. 4. The increases due to the hygroscopic expansion, were 0.4% for longitudinal direction and 0.3% for lateral one. 5. The thermal expansion was brought about 0.98% for longitudinal direction and 0.65% for lateral one. 6. The thermal expansion of investments in the ring was not uniformly and it was increased near the bottom of the ring. 7. Use of Kaowool sheet for the linning of the ring, was more effective to avoid the distortion than that of wet asbestos ribbon. | |||||||
| 書誌情報 |
松本歯学 巻 2, 号 1, p. 37-44, 発行日 1976-06-30 |
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| 出版者 | ||||||||
| 出版者 | 松本歯科大学学会 | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0385-1613 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00232590 | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
