JP2018090854A - 鉄基粉末冶金用混合粉末および焼結体の製造方法 - Google Patents
鉄基粉末冶金用混合粉末および焼結体の製造方法 Download PDFInfo
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- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
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- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
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- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
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- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
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Abstract
【解決手段】本発明の鉄基粉末冶金用混合粉末は、鉄基粉末と、Ca−Al−Si系複合酸化物粉末およびCa−Mg−Si系複合酸化物粉末よりなる群から選ばれる1種以上を混合した鉄基粉末冶金用混合粉末であって、前記複合酸化物粉末は、X線回折によって最も高いピーク強度を示す主相のピーク高さを100としたとき、ピーク強度が2番目に高い第2相のピーク高さの前記主相に対する相対高さが40%以下である。
【選択図】図2
Description
40%以下である複合酸化物粉末である。
CaO粉末、Al2O3粉末およびSiO2粉末を、成分組成が2CaO−Al2O3−SiO2となるように混合し、混合物100gを坩堝に挿入して、大気中1600℃で完全に溶解するまで加熱した。溶解物は、冷却速度を変えることを目的に、(i)溶解物を直接水中に投入して急速冷却したもの、(ii)加熱炉からの取り出し温度を変えて大気中で室温まで放冷したもの、(iii)加熱炉内部で2日間かけて炉冷したもの等を用意した。
CaO粉末、Al2O3粉末およびSiO2粉末を、成分組成がCaO−Al2O3−2SiO2となるように混合して複合酸化物を作製する以外は、実施例1と同様にして、鉄基粉末冶金用混合粉末、および焼結体を作製した。このときの複合酸化物の溶解温度や冷却条件についても、実施例1と同様である。
CaO粉末、MgO粉末およびSiO2粉末を、成分組成がCaO−MgO−SiO2となるように混合して複合酸化物を作製する以外は、実施例1と同様にして、鉄基粉末冶金用混合粉末、および焼結体を作製した。このときの複合酸化物の溶解温度や冷却条件についても、実施例1と同様である。
Claims (5)
- 鉄基粉末と、Ca−Al−Si系複合酸化物粉末およびCa−Mg−Si系複合酸化物粉末よりなる群からの選ばれる少なくとも1種を混合した鉄基粉末冶金用混合粉末であって、前記複合酸化物粉末は、X線回折によって最も高いピーク強度を示す主相のピーク高さを100としたとき、ピーク強度が2番目に高い第2相のピーク高さの前記主相に対する相対高さが40%以下であることを特徴とする鉄基粉末冶金用混合粉末。
- 前記相対高さが20%以下である請求項1に記載の鉄基粉末冶金用混合粉末。
- 前記相対高さが0.1%以上、15%以下である請求項2に記載の鉄基粉末冶金用混合粉末。
- 前記複合酸化物粉末は、2CaO−Al2O3−SiO2相、CaO−Al2O3−2SiO2相またはCaO−MgO−SiO2相のいずれかを主相とするものである請求項1〜3のいずれかに記載の鉄基粉末冶金用混合粉末。
- 請求項1〜4のいずれかに記載の鉄基粉末冶金用混合粉末を、焼結することによって焼結体を製造する焼結体の製造方法。
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PCT/JP2017/039491 WO2018100955A1 (ja) | 2016-12-02 | 2017-11-01 | 鉄基粉末冶金用混合粉末およびそれを用いた焼結体の製造方法 |
KR1020197018524A KR102254802B1 (ko) | 2016-12-02 | 2017-11-01 | 철기 분말 야금용 혼합 분말 및 그것을 이용한 소결체의 제조 방법 |
US16/464,890 US11241736B2 (en) | 2016-12-02 | 2017-11-01 | Powder mixture for iron-based powder metallurgy, and method for manufacturing sintered compact using same |
CN201780071176.8A CN109982790B (zh) | 2016-12-02 | 2017-11-01 | 铁基粉末冶金用混合粉末及使用其的烧结体的制造方法 |
SE1950657A SE545171C2 (en) | 2016-12-02 | 2017-11-01 | Powder mixture for iron-based powder metallurgy, and method for manufacturing sintered compact using same |
TW106138898A TWI660053B (zh) | 2016-12-02 | 2017-11-10 | 鐵基粉末冶金用混合粉末及使用其之燒結體的製造方法 |
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