JP2004115925A - 流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法 - Google Patents
流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 21
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- 239000001993 wax Substances 0.000 description 14
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 13
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- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 4
- 239000005642 Oleic acid Substances 0.000 description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 229960003237 betaine Drugs 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 4
- -1 sorbitan fatty acid ester Chemical class 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
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- 238000005868 electrolysis reaction Methods 0.000 description 2
- NJNNJTZOZPHSRA-UHFFFAOYSA-N octatriacontanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O NJNNJTZOZPHSRA-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 description 1
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- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
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- VAKIVKMUBMZANL-UHFFFAOYSA-N iron phosphide Chemical compound P.[Fe].[Fe].[Fe] VAKIVKMUBMZANL-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
【解決手段】 鉄基粉末に常温で液体の脂肪酸を加えて1次混合し、合金用粉末と金属石鹸とを加えて2次混合し、2次混合中又は2次混合後に昇温して脂肪酸と金属石鹸の共溶融物を生成させ、次いで3次混合しながら冷却して前記共溶融物を冷却固着させ、共溶融物の結合力により鉄基粉末粒子の表面に合金用粉末を固着させ、冷却時に金属石鹸又はワックスと、0.01〜0.1重量%の帯電防止剤を加えて4次混合する。
【選択図】 なし
Description
また本発明者らは先において、金属石鹸又はワックスとオイルとの共溶融物を結合剤として用いる方法を提案した。これらは粉末混合物の偏析と発塵を格段に低減することができると共に、流動性を改善することができるものである。しかし、これらの方法では上述の偏析を防止する手段に起因して、粉末混合物の流動性が経時的に変化する問題があった(例えば、特許文献3、4参照。)。
表1〜3に示す帯電防止剤を平均粒径が78μmの粉末冶金用鉄粉にスプレー噴霧し3分間均一混合後、さらに平均粒径が23μmの天然黒鉛1重量%、ステアリン酸亜鉛0.75重量%、平均粒径25μmの銅粉を2重量%添加混合後Vブレンダーで15分混合した。これを混合方法1とする。
平均粒径が78μmの粉末冶金用鉄粉に平均粒径が23μmの天然黒鉛粉1重量%、ステアリン酸アミドとエチレンビスステアリン酸アミドの混合物0.4重量%、平均粒径25μmの電解銅粉を2重量%添加混合後、十分混合後110℃で混合加熱し(1次混合)、さらに混合しながら85℃以下に冷却して鉄粉粒子に黒鉛粉と銅粉を各々ステアリン酸アミドとエチレンビスステアリン酸アミドの部分溶融物結合材によって固着した粉末混合物を製造した(2次混合)。さらにエチレンビスステアリン酸アミド0.3重量%とステアリン酸亜鉛0.1重量%と表4に示す帯電防止剤を添加し均一に混合後、加熱混合機から排出した(3次混合)。これを混合方法Aとする。
Claims (3)
- 鉄基粉末に常温で液体の脂肪酸を加えて1次混合し、次いで少なくとも1種以上の合金用粉末と金属石鹸とを加えて2次混合し、該2次混合工程中又は2次混合後に昇温して脂肪酸と金属石鹸の共溶融物を生成させ、次いで3次混合しながら冷却して前記共溶融物を冷却固着させ、該共溶融物の結合力により鉄基粉末粒子の表面に合金用粉末を固着させ、さらに冷却時に金属石鹸又はワックスと、0.001〜0.1重量%の帯電防止剤を加えて4次混合することを特徴とする流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法。
- 請求項1記載の方法において、前記金属石鹸又はワックスと、0.001〜0.1重量%の帯電防止剤を加えて4次混合することに代えて、金属石鹸又はワックスを加えて4次混合後、0.001〜0.1重量%の帯電防止剤を加えて5次混合することを特徴とする流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法。
- 請求項1記載の方法において、前記4次混合前に帯電防止剤を加えることに代えて、予め鉄基粉末表面に0.001〜0.1重量%の帯電防止剤を付着させた後、該鉄基粉末に常温で液体の脂肪酸を加えて1次混合することを特徴とする請求項1記載の流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法。
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JP2004016584A JP3707489B2 (ja) | 1995-06-29 | 2004-01-26 | 流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法 |
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JP2004016584A JP3707489B2 (ja) | 1995-06-29 | 2004-01-26 | 流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物の製造方法 |
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JP26579395A Division JP3682678B2 (ja) | 1995-06-29 | 1995-10-13 | 流動性に優れ見掛け密度の安定な粉末冶金用鉄基粉末混合物 |
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KR101650173B1 (ko) * | 2015-06-24 | 2016-08-23 | (주)창성 | 구리-탄소결합분말의 제조방법 및 이를 이용하여 제조된 구리-탄소결합분말 |
WO2016208840A1 (ko) * | 2015-06-24 | 2016-12-29 | (주)창성 | 구리-탄소결합분말의 제조방법 및 이를 이용하여 제조된 구리-탄소결합분말 |
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