Behavior of Carbon and Oxygen in MIM SUS304L Parts during Debinding and Sintering Process.
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- Sugiyama Daigo
- Technical Research Department Technical Research & Development Lab., Topy Industries, Ltd.
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- Murata Yasuyuki
- Technical Research Department Technical Research & Development Lab., Topy Industries, Ltd.
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- Amano Takatsugu
- Technical Research Department Technical Research & Development Lab., Topy Industries, Ltd.
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- Wade Noboru
- Technical Research Department Technical Research & Development Lab., Topy Industries, Ltd.
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- Kimura Koji
- Topy Fasteners, Ltd.
Bibliographic Information
- Other Title
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- 粉末プロセスの制御と製品評価II 射出成形したSUS304Lステンレス鋼の脱脂,焼結過程におけるC,Oの挙動
- シャシュツ セイケイシタ SUS304L ステンレス コウ ノ ダッシ ショウ
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Abstract
The expectation has been wide-spread that MIM keeps a good possibility of being an advanced powder processing technique. So far various kinds of studies have been reported for optimization of MIM process, however, there still remain several subjects to be discussed. Especially, it is the most important issue to control the amount of elements in the final products such as the carbon and oxygen. Therefore we have made a basical research about the behavior of those elements in SUS304L steels during debinding and sintering process. In this study, by varying the sintering atmosphere (vacuum pressure) and debinding temperature, we analyzed the carbon and oxygen contents in each step of heat treatment, and successfully made clear the guidlines of ruling reaction as follows;<BR>1)In the vacuum sintering process for SUS304L steels, the removal of carbon and oxygen from the compacts progresses under the dominant reaction below;<BR>2C(residual carbon)+O2(in furnace and gained as oxides) → 2CO↑<BR>2)The carbon and metal oxidation are enhanced over about 1200K. As the oxygen pressure is higher, metal oxidation becomes more dominant.<BR>3)During the vacuum sintering, the decrease of carbon content down to approximately 0.05mass% accelerates metal oxidation remarkedly.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 44 (5), 416-421, 1997
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681284924800
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- NII Article ID
- 10002013783
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 4205759
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed