JPH01283345A - Sintered alloy material and its production - Google Patents
Sintered alloy material and its productionInfo
- Publication number
- JPH01283345A JPH01283345A JP63110562A JP11056288A JPH01283345A JP H01283345 A JPH01283345 A JP H01283345A JP 63110562 A JP63110562 A JP 63110562A JP 11056288 A JP11056288 A JP 11056288A JP H01283345 A JPH01283345 A JP H01283345A
- Authority
- JP
- Japan
- Prior art keywords
- sintered
- copper
- powder
- iron powder
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000010949 copper Substances 0.000 claims abstract description 59
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 229910052718 tin Inorganic materials 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 8
- 238000004513 sizing Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 35
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 11
- 239000010439 graphite Substances 0.000 claims description 11
- 239000000314 lubricant Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 239000003984 copper intrauterine device Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000011572 manganese Substances 0.000 abstract description 41
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 27
- 229910000906 Bronze Inorganic materials 0.000 abstract description 19
- 239000010974 bronze Substances 0.000 abstract description 19
- 230000007797 corrosion Effects 0.000 abstract description 19
- 238000005260 corrosion Methods 0.000 abstract description 19
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 18
- 230000013011 mating Effects 0.000 abstract description 12
- 238000005245 sintering Methods 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 18
- 239000011701 zinc Substances 0.000 description 17
- 229910052742 iron Inorganic materials 0.000 description 10
- 229910001369 Brass Inorganic materials 0.000 description 7
- 239000010951 brass Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- QPBIPRLFFSGFRD-UHFFFAOYSA-N [C].[Cu].[Fe] Chemical compound [C].[Cu].[Fe] QPBIPRLFFSGFRD-UHFFFAOYSA-N 0.000 description 2
- BXYPXOKGJSQBGT-UHFFFAOYSA-N [Fe].[Cu].[Pb] Chemical compound [Fe].[Cu].[Pb] BXYPXOKGJSQBGT-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 2
- 239000010956 nickel silver Substances 0.000 description 2
- 239000010723 turbine oil Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- -1 and furthermore Substances 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
Abstract
Description
【発明の詳細な説明】
「発明の目的」
本発明は焼結合金材およびその製造法に係り、強度およ
び耐食性が共に優れ、しかも軸材などの相手部材に対す
るなじみ性が良好で摩擦係数が小さく、軸受材などとし
て優れた性能を有する焼結合金材およびその製造法を提
供しようとするものである。Detailed Description of the Invention "Object of the Invention" The present invention relates to a sintered alloy material and a method for producing the same, which have excellent strength and corrosion resistance, have good conformability to mating members such as shaft materials, and have a small coefficient of friction. The present invention aims to provide a sintered alloy material having excellent performance as a bearing material, etc., and a method for manufacturing the same.
（産業上の利用分野） 焼結含油軸受その仙境結合金材およびその製造技術。(Industrial application field) Sintered oil-impregnated bearings, their Senkyo alloy materials, and their manufacturing technology.
（従来の技術）
焼結含油軸受については日本工業規格としてＪＩＳ Ｂ
１５８１−１９７６に規定されている如く、家庭用電
気機器、音響用機器、事務用機械、農業用機械、自動車
その他の運搬荷投機器などに用いる円筒形、フランジ付
円筒形および球形などの軸受材に関して種々に規定され
、又その主たる成分組成としては純鉄系、鉄−銅系、鉄
−炭素系、鉄−銅−炭素系、鉄−銅−鉛系、青銅系、銅
系、鉛−青銅系など材質、種類は比較的多岐に亘る。(Conventional technology) Regarding sintered oil-impregnated bearings, JIS B is the Japanese Industrial Standard.
1581-1976, bearing materials such as cylindrical, flanged cylindrical, and spherical bearings used in household electrical equipment, audio equipment, office machinery, agricultural machinery, automobiles, and other transportation and loading equipment, etc. There are various regulations regarding these, and their main component compositions are pure iron, iron-copper, iron-carbon, iron-copper-carbon, iron-copper-lead, bronze, copper, and lead-bronze. There is a relatively wide variety of materials and types.
なお例えば特開昭５６−５１５５４号公報においては鉄
粉と黄銅粉を用いた圧粉体を焼結することが発表されて
おり、更に本発明者等によっても特開昭６０−２００９
２７号公報において鉄粉、黄銅粉および洋白粉を用い、
それらの混合粉による圧粉成形体を還元性雰囲気で焼結
処理することを提案している６（発明が解決しようとす
る課題）
上記した鉄を主体とした含油軸受においては骨格的強度
に優れ、高荷重用として好ましいが、相手部材に対する
なじみ性や耐食性に劣っているので利用上制限を受ける
。For example, JP-A No. 56-51554 discloses sintering a green compact using iron powder and brass powder, and the present inventors also published JP-A No. 60-2009.
In Publication No. 27, using iron powder, brass powder and nickel silver powder,
It is proposed to sinter a compacted product made of these mixed powders in a reducing atmosphere.6 (Problem to be solved by the invention) The above-mentioned oil-impregnated bearings mainly made of iron have excellent skeletal strength. Although it is preferable for high-load applications, its use is limited because it has poor conformability to mating members and corrosion resistance.
これに対し銅または青銅を主体としたものにおいてはな
じみ性や耐食性は良好であるが、強度上不充分であるか
ら高負荷用に適しない。On the other hand, those made mainly of copper or bronze have good conformability and corrosion resistance, but are not suitable for high-load applications because they have insufficient strength.
鉄−銅系（鉄−銅−鉛、鉄−銅一炭素などを含む）のも
のはこれらの中間的特性となるが、なお強度や耐食性に
おいて不充分である。Iron-copper type materials (including iron-copper-lead, iron-copper-carbon, etc.) have properties intermediate between these, but are still insufficient in strength and corrosion resistance.
前記した特開昭５６−５１５５４号公報Ｇこよる鉄粉と
黄銅粉を用いたものにおいては耐食性においては好まし
いとしても強度や相手部材に対するなじみ性などにおい
て充分でない。Although the iron powder and brass powder disclosed in JP-A-56-51554 G are good in terms of corrosion resistance, they are not sufficient in terms of strength and compatibility with mating members.
前記特開昭６０−２００９２７号公報のものは洋白をも
用いることにより強度性を確保しながら充分な耐食性と
摩擦係数低減を図ったものであるが、それらの特性にお
いて必ずしも満足するものとなし得ず、又軸材などの相
手部材に対するなじみ性などにおいて不充分である。The product disclosed in JP-A No. 60-200927 also uses nickel silver to ensure sufficient corrosion resistance and reduce the coefficient of friction while ensuring strength, but these properties are not necessarily satisfactory. Furthermore, the compatibility with mating members such as shaft members is insufficient.
更に前記したような従来のものにおいては適当な強度を
得ると共に比較的低コストに製品を得るためには相当量
の鉄粉を用いることが不可欠であるところ、このように
して混合された鉄粉が成程銅粉や黄銅粉中に埋れるとし
てもそれなりに露出することとならざるを得す、このよ
うにして露出した鉄粉粒子は相手部材と接摺してこれを
損耗し、又腐食発生の基点となる。Furthermore, in the conventional products as described above, it is essential to use a considerable amount of iron powder in order to obtain a product with appropriate strength and at a relatively low cost. Even if the iron powder particles are buried in the copper powder or brass powder for some time, they will inevitably be exposed to some extent.The exposed iron powder particles will come into contact with the mating member and damage it, and also cause corrosion. It becomes the base point of occurrence.
即ち前記したような従来法によるものにおいては銅粉な
どの混合量が高くなるに従ってこの添加された銅粉など
による色彩感覚を次第に帯びて来ることとなり、鉄粉の
みによる製品とは異った感触を示すようになるが、これ
を顕微鏡的に観察した場合には各原料粉（鉄粉と銅粉な
ど）が略その混合比に従った状態に露出しており、この
ような製品について耐食性試験をなした場合には銅粉な
どの部分ではその腐食が低減されるとしても鉄粉部分で
は腐食が容易に発生進行する。相手部材に対する損耗な
どについてもこれと同じであって、露出した鉄粉自体は
軸材などに対してやはり鉄としての損耗を与えることと
ならざるを得ない。In other words, as the amount of copper powder etc. added increases in products made using the conventional method as described above, the color sense due to the added copper powder etc. gradually takes on, and the product has a different feel from products made only with iron powder. However, when this is observed microscopically, each raw material powder (iron powder, copper powder, etc.) is exposed in a state approximately according to the mixing ratio, and corrosion resistance tests are performed on such products. If this is done, even if corrosion is reduced in parts such as copper powder, corrosion easily occurs and progresses in iron powder parts. The same applies to wear and tear on the mating member, and the exposed iron powder itself inevitably causes wear and tear on the shaft material and the like as iron.
「発明の構成」
（課題を解決するだめの手段）
１、 Ｆｅ： ２０〜６４ｗｔ％、Ｃｕ： ２７
〜５ ９ｗｔ％、Ｚｎ：６−２４ｗｔ％、 Ｓｎ ：
０．０６〜０．６ ｗｔ％、＾Ｉｌ ｇｏ〜３ｗｔ％
を含有すると共に、
Ｍｎ ： ０．１〜３ｗｔ％
を含有し、しかも前記ＦｅがＣｕにより実質的完全状態
に被覆され、気孔率１５〜２８ｖｏＩｌとされたことを
特徴とする焼結合金材。"Structure of the invention" (Means for solving the problem) 1. Fe: 20-64 wt%, Cu: 27
~59wt%, Zn:6-24wt%, Sn:
0.06 to 0.6 wt%, ^Ilgo to 3 wt%, Mn: 0.1 to 3 wt%, and the Fe is substantially completely covered with Cu, and the porosity is 15. 28 vol.
２゜Ｆｅ： ２０〜６４ｗｔ％、Ｃｕ ： ２４．２〜
５８．７ｗｔ％、Ｚｎ ： ４．５〜２３．８ｗｔ％、
Ｓｎ ： ０．０５〜０．６ ｗｔ％、Ａｊ！ ： ０
〜２．９８ｗｔ％
を含有すると共に、
Ｍｎ： ０．０８〜２．９８ｗｔ％
を含有し、しかも黒鉛、二硫化モリブデン、鉛のような
固体潤滑材の１種または２種以上を０．５〜５ｗｔ％を
含有し、前記ＦｅがＣｕにより実質的完全状態に被覆さ
れ、気孔率が１５〜２８ｖｏｐ％とされたことを特徴と
する焼結合金材。2゜Fe: 20~64wt%, Cu: 24.2~
58.7wt%, Zn: 4.5-23.8wt%,
Sn: 0.05-0.6 wt%, Aj! : 0
~2.98wt%, Mn: 0.08~2.98wt%, and 0.5~2.98wt% of one or more solid lubricants such as graphite, molybdenum disulfide, and lead. 5 wt%, the Fe is substantially completely covered with Cu, and the porosity is 15 to 28 vop%.
３、２０〜５０ｗｔ％の銅を被覆した鉄粉１００重量部
に対し、Ｚｎ： ３０〜４０ｗｔ％、Ｓｎ：０．３〜１
．０ｗｔ％、八ｊ！：０−５ｗｔ％、Ｍｎ ： ０．５
〜５ｗｔ％を含有し残部がＣｕおよび不可避的不純物よ
りなるマンガン青銅粉を２５〜１５０重量部添加混置部
た原料粉を圧粉成形してから焼結し、次いで気孔率１５
〜２８ｖｏｎ％にサイジングすることを特徴とする焼結
合金材の製造法。3. Zn: 30-40 wt%, Sn: 0.3-1 for 100 parts by weight of iron powder coated with 20-50 wt% copper.
．． 0wt%, 8j! :0-5wt%, Mn: 0.5
The raw material powder containing 25 to 150 parts by weight of manganese bronze powder containing ~5 wt% and the remainder consisting of Cu and unavoidable impurities is compacted and sintered, and then the porosity is 15.
A method for producing a sintered metal material, characterized by sizing the material to ~28 von%.
４、２０〜５０−ｔ％の銅を被覆した鉄粉１００重量部
に対し、Ｚｎ： ３０〜４０ｗｔ％、Ｓｎ：０゜３〜１
．０ｗｔ％、Ａｊ！：０〜５ｗｔ％、Ｍｎ＋０．５〜５
．０ｗｔ％を含有し残部がＣｕおよび不可避的不純物よ
りなるマンガン青銅粉を１９．７〜１４９．５重量部と
黒鉛、二硫化モリブデンまたは鉛のような固形潤滑材の
１種または２種以上を０．５〜５．３重量部を添加混合
した原料粉を圧粉成形してから焼結し、次いで気孔率１
５〜２８ｖｏｌ％にサイジングすることを特徴とする焼
結合金材の製造法。4. For 100 parts by weight of iron powder coated with 20-50-t% copper, Zn: 30-40 wt%, Sn: 0°3-1
．． 0wt%, Aj! :0~5wt%, Mn+0.5~5
．． 19.7 to 149.5 parts by weight of manganese bronze powder containing 0 wt% with the balance consisting of Cu and unavoidable impurities and one or more solid lubricants such as graphite, molybdenum disulfide, or lead. The raw material powder mixed with .5 to 5.3 parts by weight is compacted and sintered, and then the porosity is 1.
A method for producing a sintered metal material, characterized by sizing the material to 5 to 28 vol%.
（作用）
Ｆｅ： ２０〜６４ｗｔ％、Ｃｕ： ２７〜５９ｗｔ％
、Ｚｎ：６〜２４ｗｔ％を含有すると共にＳｎ：０．０
６〜０．６ｗｔ％、Ａ７！：０〜３ｗｔ％、Ｍｎ：０．
１〜３ｗｔ％を含有することにより強度を確保しながら
相手部材に対するなじみ性を維持し、しかも耐食性にお
いて優れた特性を発揮する。即ち上記のようなｌ’Ｉｎ
、Ｚｎと八β、Ｓｎの適量添加で強度および耐食性が適
切に向上し、しかも相手部材に対するなじみ性などが損
われない。(Function) Fe: 20-64wt%, Cu: 27-59wt%
, Zn: 6 to 24 wt% and Sn: 0.0
6-0.6wt%, A7! :0-3wt%, Mn:0.
By containing 1 to 3 wt%, it maintains compatibility with the mating member while ensuring strength, and exhibits excellent corrosion resistance. That is, l'In as above
By adding appropriate amounts of , Zn, 8β, and Sn, the strength and corrosion resistance are appropriately improved, and the conformability to the mating member is not impaired.
焼結合金における前記Ｆｅの粉末粒子がＣｕにより実質
的完全状態に被覆されていることにより、該Ｆｅ粉末粒
子が製品面において露出することがなくなり、即ちＣｕ
で製品面が有効且つ緻密に被覆されたものとなって耐食
性を大幅に向上し、又相手部材に対するなじみ性や熱伝
導性なども向上せしめられる。粉末粒子間の焼結につい
てもＦｅ粒子の介入がないので安定した焼結関係が形成
される。Since the Fe powder particles in the sintered alloy are substantially completely covered with Cu, the Fe powder particles are not exposed on the product surface, that is, Cu
This effectively and densely coats the product surface, greatly improving corrosion resistance, and also improving compatibility with mating parts and thermal conductivity. Regarding sintering between powder particles, a stable sintering relationship is formed since there is no intervention of Fe particles.
Ｆｅが２０−ｔ％以下では強度が充分に得られず、又他
の成分を多量に必要とし高価となる。一方６４−ｔ％を
超えてＦｅを含有したものは摩擦係数を高め、相手部材
に対するなじみ性が確保されないと共に耐食性が急激に
劣化する。If the Fe content is less than 20-t%, sufficient strength cannot be obtained, and large amounts of other components are required, resulting in an expensive product. On the other hand, a material containing more than 64-t% of Fe increases the coefficient of friction, does not ensure conformability to a mating member, and rapidly deteriorates corrosion resistance.
Ｃｕが２７ｗｔ％以上となることによりＦｅ粒子表面の
完全被覆を図る。と共になじみ性を確保し、又５９ｗｔ
％を上限とすることでＦｅ粒子その他を適量含有させて
強度性を維持し、しかも低コスト性を得しめる。By setting the Cu content to 27 wt% or more, the surfaces of the Fe particles are completely covered. It also ensures familiarity with the weight of 59wt.
By setting the upper limit to %, it is possible to contain an appropriate amount of Fe particles and the like, maintain strength, and achieve low cost.
Ｚｎを６ｗｔ％以上とすることでＣｕやＭｎと相俟って
耐食性を確保し、又２４ｗｔ％を上限とすることにより
なじみ性を適切に維持する。Ｍｎが０．１ｗｔ％以上と
することによりその脱酸作用から強度および耐食性を有
効に高める。一方３ｗｔ％を上限とすることによってな
じみ性を維持し、摩擦係数の上昇を抑制する。By setting Zn to 6 wt% or more, corrosion resistance is ensured in combination with Cu and Mn, and by setting the upper limit to 24 wt%, conformability is appropriately maintained. By setting Mn to 0.1 wt% or more, strength and corrosion resistance are effectively increased due to its deoxidizing effect. On the other hand, by setting the upper limit to 3 wt%, conformability is maintained and an increase in the coefficient of friction is suppressed.
Ｓｎが０．０６％以上含有されることにより、Ｃｕ、Ｍ
ｎおよびＡ！やＺｎなどの適量含有と相俟って銅系高力
合金としてのマンガン青銅の特性を発揮することができ
る。Ｆｅ粉末粒子を核とし、これに銅系高力合金である
マンガン青銅のような成分を介在させる本発明の場合に
おいて、このＳｎ分は０．６ｗｔ％を超えて含有させて
もその効果が飽和し、殊更にそれ以上の特性も求められ
ず、コスト高となる。即ち０．６ｗｔ％を上限とするこ
とにより鉄粉粒子を相当量用いた低コスト性確保を得し
める。By containing 0.06% or more of Sn, Cu, M
n and A! Together with the inclusion of appropriate amounts of Zn and Zn, the characteristics of manganese bronze as a copper-based high-strength alloy can be exhibited. In the case of the present invention, in which Fe powder particles are used as the core and a component such as manganese bronze, which is a copper-based high-strength alloy, is interposed, the effect is saturated even if the Sn content exceeds 0.6 wt%. However, even better characteristics are not required, resulting in high costs. That is, by setting the upper limit to 0.6 wt%, it is possible to ensure low cost by using a considerable amount of iron powder particles.
ＡＲが０〜３ｗｔ％含有されることにより前記したよう
な銅系高力合金としてのマンガン青銅の成分組成を鉄粉
粒子間において確保する。３ｗｔ％を超えたＡｌの含有
は却って強度低下をもたらす傾向が顕われる。なおこの
ＡＡの下限については例えばＪＩＳ Ｈ２２０５にお
ける表２に規定されているように５．０ｗｔ％まで含有
したマンガン青銅粉を用い、製品として３．０ｗｔ％ま
で含有せしめてよいことは上記の如くであるが、全く含
有せず、あるいは実質的に痕跡程度であってもマンガン
青銅としての高力特性を求め得ることがあるので、殊更
に限定する必要がないものと言える。By containing AR in an amount of 0 to 3 wt%, the above-mentioned component composition of manganese bronze as a copper-based high-strength alloy is ensured between the iron powder particles. If the Al content exceeds 3 wt%, the strength tends to decrease. Regarding the lower limit of this AA, for example, as specified in Table 2 of JIS H2205, manganese bronze powder containing up to 5.0 wt% may be used, and as mentioned above, it is allowed to contain up to 3.0 wt% as a product. However, even if it does not contain manganese at all, or even if it contains only a trace, it may be possible to obtain the high strength properties of manganese bronze, so it can be said that there is no need to particularly limit it.
８００〜９５０℃の焼結温度により前記したように銅被
覆された鉄粉粒子とマンガン青銅としての銅系高力合金
粉末相互が適切に焼結せしめられる。As described above, the copper-coated iron powder particles and the copper-based high-strength alloy powder as manganese bronze are appropriately sintered at a sintering temperature of 800 to 950°C.
圧粉成形体を耐熱性容器の底面から離隔した状態に収容
すると共に蓋を施して焼結することによすＺｎ分の気散
損失を防止し、しかも均斉な焼結状態を形成する。The powder compact is housed in a state separated from the bottom surface of the heat-resistant container and is sintered with a lid, thereby preventing the loss of Zn due to vaporization and forming a uniform sintered state.
圧粉成形し焼結後、サイジングした気孔率１５νａｌ１
％以上とすることにより軸受材などとする場合の含油量
を適切に得しめ、潤滑性能を高める。Porosity 15νal1 after compacting and sintering
% or more, the oil content can be appropriately obtained when used as a bearing material, etc., and the lubrication performance can be improved.
一方この気孔率が２８ｖｏｌ％を超えないことにより強
度性を確保すると共に含浸油の流出、飛散を防止する。On the other hand, since the porosity does not exceed 28 vol%, strength is ensured and the impregnating oil is prevented from leaking and scattering.
黒鉛、二硫化モリブデンまたは鉛のような固体潤滑材の
１種または２種以上を０．５ｗｔ％以上含有させること
により潤滑性を高め、摩擦係数を小とする。又５．Ｏｗ
ｔ％を超えないことにより製品の強度性を維持する。By containing 0.5 wt% or more of one or more solid lubricants such as graphite, molybdenum disulfide, or lead, the lubricity is enhanced and the coefficient of friction is reduced. Also 5. Ow
The strength of the product is maintained by not exceeding t%.
Ｚｎ： ３０〜４０ｗｔ％、Ｓｎ ： ０．３−１ｗｔ
％、ｉ：０〜５ｗｔ％、Ｍｎ ： ０．５〜５Ｌｔ％を
含有し残部がＣｕおよび不可避的不純物よりなるマンガ
ン青銅粉を用いることによりＣｕ、ＺｎおよびＭｎとＳ
ｎ、あるいはＡｌが合金体として同時に添加され、それ
らの成分を各別に準備し順次混合する煩雑さを回避する
。又配合された各成分の偏析を適切に防止し、均等な混
合焼結状態を容易に形成する。又このようなマンガン青
銅は銅系合金であるから前記のように鉄粒子に被覆され
たＣｕ層に対するなじみが良好で、焼結機構も安定した
ものとして形成される。Zn: 30-40wt%, Sn: 0.3-1wt
%, i: 0 to 5 wt%, Mn: 0.5 to 5 Lt%, and the balance is Cu and inevitable impurities.
n or Al is added at the same time as an alloy, thereby avoiding the complexity of preparing each component separately and mixing them sequentially. Moreover, segregation of the blended components is appropriately prevented, and a uniform mixed sintered state can be easily formed. Moreover, since such manganese bronze is a copper-based alloy, it is well adapted to the Cu layer coated on the iron particles as described above, and the sintering mechanism is also stable.
即ち鉄粉粒子が高力を有するマンガン青銅によりなじみ
よ（、強固安定に結合された組織を構成する。In other words, the iron powder particles become more compatible with the high-strength manganese bronze (forming a strongly and stably bonded structure).
（実施例）
上記したような本発明によるものの具体的な実施態様に
ついて説明すると、本発明は基本的にＦｅ、Ｃｕ、 Ｚ
ｎと共にＭｎ、 Ｓｎ、および適宜に八βを含有した焼
結合金であるが、又そのＦｅがＣｕで被覆されたもので
あって、これらの組成成分は各別に準備されてよいが、
Ｆｅ粉末粒子はＣｕで被覆されたものとして採用される
。又他の成分も合金として材料を準備してよいことは前
記の通りで、Ｍｎ−Ａ４合金と黄銅の各粉末、マンガン
と銅との合金である電気抵抗合金や磁性合金と鉄および
Ｚｎの各粉末などを採用することができる。然し好まし
い材料としては純鉄粉末にＣｕを被覆したものとマンガ
ン青銅粉末を用いることである。(Example) To explain the specific embodiments of the present invention as described above, the present invention basically includes Fe, Cu, Z
It is a sintered alloy containing Mn, Sn, and optionally 8β together with n, and its Fe is coated with Cu, and these compositional components may be prepared separately, but
Fe powder particles are employed as coated with Cu. As mentioned above, other ingredients may also be prepared as alloys, such as Mn-A4 alloy and brass powder, electric resistance alloy or magnetic alloy which is an alloy of manganese and copper, iron and Zn. Powder etc. can be adopted. However, preferred materials are pure iron powder coated with Cu and manganese bronze powder.
製品としてのＦｅば一般的に２０〜６４ｗｔ％であるが
、好ましくは３０〜６０４％であり、より好ましくは４
０〜５５−１％である。又Ｃｕは一般的には上記のよう
に２７〜５９−ｔ％であるが、好ましくは２５〜５５圓
ｔ％、より好ましくは３０〜５０ｗｔ％とすべきである
。Ｚｎの一般的範囲は６〜２４ｗｔ％であるが、好まし
くは８〜２４ｉ％、より好ましくは１０〜２０ｗｔ％で
ある。Ｍｎについての好ましい範囲は前記した一般的範
囲の中で０．１〜３−１％であり、より好ましくは０．
５〜２ｗｔ％である。Fe as a product is generally 20 to 64 wt%, preferably 30 to 604%, more preferably 4
It is 0-55-1%. Further, Cu is generally 27 to 59 wt% as mentioned above, preferably 25 to 55 wt%, more preferably 30 to 50 wt%. The general range for Zn is 6-24wt%, preferably 8-24i%, more preferably 10-20wt%. The preferred range for Mn is 0.1 to 3-1% within the above general range, more preferably 0.1% to 3-1%.
It is 5 to 2 wt%.
八ｌについては３’ｙｔ％まで含有することが許容＾れ
るが、全く含有しないものであってもよい。Regarding 8L, it is permissible to contain up to 3'yt%, but it may not be contained at all.
前記した鉄粉は上述したようなＣｕ分の中の少くとも一
部を用いて被覆したものとして準備される。The above-mentioned iron powder is prepared by being coated with at least a part of the Cu component as described above.
このような鉄粉に対する銅の被覆はメツキ法の如きによ
って行われ、そのような被覆量はメツキ時における通電
量と時間を適当に選ぶことにより適宜の程度に行い得る
。このような銅の被覆量は重量比で２０〜５０％である
ことは前記の通りであ一′Ｐ
」？
、づ：１・
るが、より好ましい範囲としては２５〜４５％程度であ
る。このような銅被覆により鉄粉粒子の周面ば完全状態
に銅皮膜で被包されることになり、又鉄粉粒子表面に特
にメツキ時においてそれなりの凹凸の存するものとして
得られるから圧粉成形が容易化される。Such iron powder is coated with copper by a plating method, and the amount of coating can be adjusted to an appropriate degree by appropriately selecting the amount of current and time during plating. As mentioned above, the amount of copper coating is 20 to 50% by weight. , 1. However, a more preferable range is about 25 to 45%. With such copper coating, the peripheral surface of the iron powder particles is completely covered with a copper film, and the surface of the iron powder particles has some unevenness, especially during plating, so it is difficult to compact the particles. is facilitated.
なお原材たる鉄粉粒子の大きさについては特に制限され
ないが、純鉄系焼結体製造のために従来−船釣に採用さ
れている１００メソシユ以下より更に拡大した粒子範囲
のものを採用することができる。即ち例えば１５０メソ
シユ以下のように比較的細粒のものでも銅被覆によって
増径され粒径的に従来−船釣範囲のものと同様に処理す
ることが可能であるし、上記のように圧粉成形が容易と
なることから従来普通の粒径範囲を超えて大径のもので
あっても従来法同然の圧粉成形処理で同等ないしそれよ
り容易に成形することができる。There are no particular restrictions on the size of the iron powder particles used as the raw material, but in order to produce pure iron sintered bodies, particles with a particle size larger than the 100 mesosites that are conventionally used for boat fishing are used. be able to. That is, even relatively fine grains, such as 150 mesosius or less, can be increased in diameter by copper coating and treated in the same way as those in the conventional boat fishing range, and as described above, they can be treated as compacted powder. Since molding is easy, even particles having a large diameter exceeding the conventional conventional particle size range can be molded equally or more easily by the same powder molding process as the conventional method.
上記のような鉄粉粒子に対するＣｕの被覆は電解メツキ
の外に浸潤性や蒸着法その他の適宜の手法を採用するこ
とができ、何れにしても鉄粉粒子表面に一般的に９５％
以上、少くとも９０％以上、好ましくは９８％以上の略
完全な被覆状態を形成する。In addition to electrolytic plating, infiltration, vapor deposition, and other appropriate methods can be used to coat iron powder particles with Cu as described above.
As described above, a substantially complete coverage state of at least 90% or more, preferably 98% or more is formed.
本発明においては上記のように銅被覆された鉄粉粒子間
に銅系の高力合金であるマンガン青銅の成分組成を形成
するものであって、このような銅系高力合金であるマン
ガン青銅は複数の素材粉末を用いて形成することも可能
であるが、好ましい手法としてはマンガン青銅の粉末を
用いることである。即ちこのようなマンガン青銅として
は例えばＪＩＳ Ｈ２２０５に規定されているように
、Ｚｎ： ３０〜４０ｗｔ％、Ｓｎ：０．３−１ｗｔ％
、Ａ１：０．５〜５ｗｔ％、Ｍｎ ： ０．５〜５ｗｔ
％であって、残部がＣｕのような公知のものを広く採用
することが可能であり、又後述する製造例のようにＡｌ
を全く含有しないマンガン青銅粉でもよいもので、この
ような成分組成のマンガン青銅を上記のような銅被覆鉄
粉粒子の間に位置せしめ（混合）、圧粉成形焼結し、あ
るいは更にサイジングすることによって安定且つ強固な
焼結組織が得られ、機械的強行１１３＋１
度の高い製品となる。In the present invention, as described above, the composition of manganese bronze, which is a copper-based high-strength alloy, is formed between the copper-coated iron powder particles, and the composition of manganese bronze, which is such a copper-based high-strength alloy, is can be formed using a plurality of raw material powders, but a preferred method is to use manganese bronze powder. That is, as such manganese bronze, for example, as specified in JIS H2205, Zn: 30 to 40 wt%, Sn: 0.3 to 1 wt%.
, A1: 0.5-5wt%, Mn: 0.5-5wt
%, and the balance is Cu, and it is possible to widely adopt a known material such as Cu, or as in the manufacturing example described later, Al
Manganese bronze powder containing no manganese bronze may also be used, and manganese bronze having such a composition is placed (mixed) between the copper-coated iron powder particles as described above, compacted and sintered, or further sized. As a result, a stable and strong sintered structure is obtained, resulting in a product with a high mechanical stress of 113+1 degrees.
固体潤滑材としての黒鉛、二硫化モリブデンなどは粉末
として添加されることは当然であるが、黒鉛のような固
体潤滑材は銅被覆鉄粉およびマンガン青銅粉の何れに対
しても比重が小であって、このような黒鉛の如きを単に
混合しても他の原料粉に対し均一状態に分散させること
が困難であり、しかも搬送荷役中およびプレスホッパー
への入替え、圧粉成形時などにおいて黒鉛粉の浮上、片
寄りなどによる偏析が発生する。そこで斯様な黒鉛の如
き固体潤滑材に関しては比較的粗粉のものを採用し、し
かもその微粉分を分級して除去したものを用いると有効
であることが実験により確認された。即ち上記黒鉛粉末
として一般的に市販されているものが１〜３０μｍ、あ
るいは１〜５０μｍの如きであるのに対し本発明者等が
好ましい固体潤滑材としての黒鉛は１０〜１５０μｍ、
特に２０〜１００．ｃａｍとされ、粗粉であると共に１
０μｍまたは２０μｍ以下の微粉分をカントしたもので
あり、それによって均一分散を容易化し、また荷役その
他の取扱時における偏析発生を可及的に防止し得る。前
記のような１０μｍ未満、あるいは２０μｍ未満のよう
な微粉分は液中での分級処理で粉塵の発生がなく、しか
も適切に分級し得る。It is natural that solid lubricants such as graphite and molybdenum disulfide are added in the form of powder, but solid lubricants such as graphite have a low specific gravity for both copper-coated iron powder and manganese bronze powder. Therefore, even if such graphite is simply mixed, it is difficult to uniformly disperse it in other raw material powders, and furthermore, graphite may be mixed during transportation, transfer to the press hopper, compaction, etc. Segregation occurs due to floating of powder, unevenness, etc. Therefore, it has been confirmed through experiments that it is effective to use a relatively coarse powder as a solid lubricant such as graphite, and to use one whose fine powder has been classified and removed. That is, while the graphite powder that is generally commercially available has a diameter of 1 to 30 μm, or 1 to 50 μm, the graphite used as a solid lubricant preferred by the present inventors has a diameter of 10 to 150 μm.
Especially 20-100. cam, coarse powder and 1
Fine particles of 0 μm or 20 μm or less are canted, thereby facilitating uniform dispersion and preventing segregation as much as possible during cargo handling and other handling. The above-mentioned fine particles of less than 10 μm or less than 20 μm do not generate dust when classified in a liquid, and can be classified appropriately.
なお本発明によるものは必要に応じ上記以外の金属また
は合金粉などを適宜に添加してよい。即ち例えばＰｂ、
、Ｎｉ、Ｓｔなどの若干を含有せしめても本発明の特質
を失うものでなく、合金としてＳｎ含有黄銅、へβ含有
黄銅、ｐｂ含有黄銅、Ｎｉ含有黄銅、Ｆｅ含有黄銅、Ｓ
ｉ含有黄銅などを用いることができる。Note that metals or alloy powders other than those mentioned above may be appropriately added to the material according to the present invention, if necessary. That is, for example, Pb,
, Ni, St, etc., the characteristics of the present invention will not be lost even if a small amount of Sn, Ni, St, etc. is contained.
I-containing brass or the like can be used.
圧粉成形は一般的に２〜３ Ｔｏｎ／ｃ−程度の圧下で
行われ、その気孔率は２２〜３５ｖｏｆｆｉ％である。Powder compaction is generally performed under a pressure of about 2 to 3 Ton/c-, and the porosity is 22 to 35 voffi%.
２２ｖｏＩ１％未満では有効なサイジングを行い且つ含
油などに適した気孔率をもつ製品を得ることが困難とな
る。一方３５ｖｏＡ％を超えた気孔率を有する圧粉成形
体は焼結取扱中などにおいて損壊、欠損する可能性が高
い。焼結は８００〜９５０℃の還元性雰囲気で行うが、
前記のように含有されているＺｎ分の揮散脱亜鉛を防止
するには耐熱性容器内に網目材などを敷いて底面から離
隔して収容し施蓋して焼結することが好ましい。勿論炭
素粉中に埋没して実施してもよい。If the 22voI is less than 1%, it will be difficult to perform effective sizing and obtain a product with a porosity suitable for oil impregnation. On the other hand, a powder compact having a porosity exceeding 35 voA% is likely to be damaged or chipped during sintering and handling. Sintering is performed in a reducing atmosphere at 800 to 950°C,
In order to prevent the Zn content from being volatilized and dezinced as described above, it is preferable to spread a mesh material or the like in a heat-resistant container, store the container away from the bottom surface, cover the container, and sinter the container. Of course, it may be carried out by being buried in carbon powder.
焼結によってそれなりに変形し、即ちマンガン青銅を用
いるような本発明の場合においては歪み、変形、寸法変
化の如きもそれなりに顕われるからサイジングして所定
寸法の製品とする。又このサイジングによって気孔率１
５〜２８ν０β％の製品とすることにより、含油軸受を
得るに当って好ましい含油量を得しめ、しかも機械的強
度なども適切な値を保持した焼結金属体が得られる。In the case of the present invention, in which manganese bronze is used, distortion, deformation, and dimensional changes occur to some extent due to sintering, so the product is sized to a predetermined size. This sizing also reduces the porosity to 1
By preparing a product with a content of 5 to 28 ν0β%, a sintered metal body can be obtained which has a preferable oil content for obtaining an oil-impregnated bearing and also maintains appropriate mechanical strength.
本発明によるものの具体的な製造例について説明すると
以下の如くである。A specific manufacturing example of the product according to the present invention will be described below.
製造例１゜
粒度が１００メソシユ以下の鉄粉に４０ｗｔ％のＣｕを
被覆したものと、Ｃｕ ： ６４．５ｗｔ％、Ｚｎ：３
０−ｔ％、Ｓｎ：０．５ｗｔ％、Ｍｎ：５ｗｔ％、を含
有し１００メソシユ以下のマンガン青銅粉を準備し、こ
れらを次の第１表のようなｗｔ％に混合した。Production example 1゜ Iron powder with a particle size of 100 mesosinus or less coated with 40 wt% Cu, Cu: 64.5 wt%, Zn: 3
Manganese bronze powder containing 0-t%, Sn: 0.5wt%, Mn: 5wt% and having a weight of 100 or less was prepared, and these were mixed in the wt% as shown in Table 1 below.
第 １ 表
上記した第１表による■〜■の各原料粉は何れも充分に
混合されてから圧粉成形され、即ち外径が１０１、内径
４ｍｍの環状軸受体として成形した。Table 1 The raw material powders ① to ② in Table 1 above were thoroughly mixed and then compacted, that is, formed into an annular bearing body having an outer diameter of 10 mm and an inner diameter of 4 mm.
これらの圧粉成形体は夫々各グループ毎に区分して底面
に金属網を敷いた耐熱性鉄箱に収容し、即ら被焼結体を
容器底面から離隔させた状態で収容せしめ、蓋を施して
から焼結炉に装入し、８９０゛ＣのＡＸガスによる還元
性雰囲気で４５分間の焼結処理を行った。このようにし
て得られた各焼結体は次いでサイジングをなし、気孔率
が一定の２０νｏｎ％の製品とした。このような製品に
ついて拡大鏡により検討したが鉄粉粒子は何れも９８％
以上の略完全状態に銅層によって被覆されており、露出
部分を実質的に観察し得ないものであった。These compacted compacts are divided into groups and housed in heat-resistant iron boxes with a metal mesh on the bottom, that is, the bodies to be sintered are kept separated from the bottom of the container, and the lid is closed. After the coating was applied, it was charged into a sintering furnace and sintered for 45 minutes in a reducing atmosphere using AX gas at 890°C. Each of the sintered bodies thus obtained was then sized to produce a product with a constant porosity of 20 νon%. When examining these products using a magnifying glass, iron powder particles were found to be 98%
The copper layer was almost completely covered as described above, and the exposed portion could not be substantially observed.
又このようにして得られた各焼結体についてその成分組
成を検討した結果は次の第２表の如くであった。Furthermore, the composition of each of the sintered bodies thus obtained was investigated and the results were as shown in Table 2 below.
第２表
上記のようにして得た各製品に対し次いで浸漬処理をな
し、即ち−３Ｑ ｍｔｌ１ｇ程度の真空条件で気孔中の
空気を除去し且つタービン油を含浸させて含油軸受を得
た。Table 2 Each product obtained as described above was then subjected to a dipping treatment, that is, the air in the pores was removed under a vacuum condition of about 1 g of -3Q mtl, and the product was impregnated with turbine oil to obtain an oil-impregnated bearing.
これらの製品に対し、その特性試験を行った。Characteristic tests were conducted on these products.
即ち上記したような各製品と、別に比較材として前記し
た従来技術による純鉄系焼結軸受け■ および純鉄粉と
黄銅粉とを５０ ： ５０の割合で混合し圧粉成形、焼
結してから前記した各製品の同し気孔率である２０ｖｏ
Ａ％にサイジングしたものを１！備し、これらの製品■
〜■および比較材■■について圧環強度、摩擦係数およ
びＰＶ値１０００ｋｇ ／ ｃｔ −ｍ ／ ｍｉｎで
４０分（この条件で３０分程度までは次第に昇温するが
、以後は殆んど昇温せず）連続回転したときの温度上昇
値を測定した結果は次の第３表の如くである。That is, each of the above-mentioned products, a pure iron sintered bearing by the prior art described above as a comparison material, and pure iron powder and brass powder were mixed in a ratio of 50:50, compacted, and sintered. 20vo, which is the same porosity of each product mentioned above.
The one sized to A% is 1! In preparation, these products■
~ ■ and comparative material ■■ Radial crushing strength, friction coefficient, and PV value 1000 kg / ct - m / min for 40 minutes (under these conditions, the temperature gradually increases until about 30 minutes, but after that there is almost no increase in temperature) ) The results of measuring the temperature rise during continuous rotation are shown in Table 3 below.
第 ３ 表
又上記したような本発明による各製品■〜■および比較
材■■ について湿度８０％、温度６０℃の耐食性試験
を行い、錆発生の認められるまでの期間を測定した結果
は次の第４表の如くであった。Table 3: Corrosion resistance tests were conducted on each of the products ■ to ■ according to the present invention and the comparative material ■■ as described above at a humidity of 80% and a temperature of 60°C, and the period until rust was observed was measured. The results are as follows. It was as shown in Table 4.
第 ３ 表
製造例２
前記した製造例１における第１表の■の配合において、
外掛けで黒鉛粉末を２ｗｔ％含有せしめた外はすべて製
造例１におけると同じに実施して製品とした。Table 3 Production Example 2 In the formulation of ■ in Table 1 in Production Example 1 described above,
A product was prepared in the same manner as in Production Example 1 except that 2 wt % of graphite powder was added to the outside.
このものについての摩擦係数は０．０６８であって、よ
り優れた潤滑性を有することが確認され、又圧環強度は
２２ｋｇ／、、ｚであって、好ましい強度を有しており
、高温多湿条件下の発錆試験も製造例１の場合と同じで
あることが確認された。The friction coefficient of this product was 0.068, which confirmed that it had better lubricity, and the radial crushing strength was 22 kg/, z, which is a preferable strength and can be used under high temperature and high humidity conditions. It was confirmed that the rust development test below was also the same as in Production Example 1.
製造例３
製造例１におけると同し銅被薄鉄ｙＪ１００部に対し、
Ｃｕ：６３．８％、Ｚｎ ： ２９．７％、Ｍｎ：５％
、Ｓｎ ： Ｑ、 ５％、八１．：１．０％のマンガン
青銅粉２５部を混合した外はすべて製造例１におけると
同じに圧粉成形、焼結し、２０ｖｏ１％までサイジング
したものにタービン油を含浸させて含油軸受を得た。Production Example 3 For 100 parts of the same copper-covered thin iron yJ as in Production Example 1,
Cu: 63.8%, Zn: 29.7%, Mn: 5%
, Sn: Q, 5%, 81. : Except for mixing 25 parts of 1.0% manganese bronze powder, everything was compacted and sintered in the same manner as in Production Example 1, and the product was sized to 20vo1% and impregnated with turbine oil to obtain an oil-impregnated bearing. .
このものについて特性試験を行った結果は圧環強度が２
９．５ｋｇ／菖寓２、摩擦係数は０．０７５、連続回転
温度上昇値は２１．２℃であって、前記製造例１のもの
と同様であり、又発錆の認められた日数１２０日以上で
あって、Ａ１をそれなりに含有している一船釣マンガン
青銅粉をそのまま用いても好ましい製品が得られるもの
であることが確認された。The results of characteristic tests on this material showed that the radial crushing strength was 2.
9.5kg/Iris 2, friction coefficient 0.075, continuous rotation temperature rise value 21.2°C, which is the same as in Production Example 1, and the number of days during which rust was observed is 120 days. From the above, it was confirmed that a preferable product can be obtained even if the Ichifunesuri manganese bronze powder containing a certain amount of A1 is used as it is.
「発明の効果」
以上説明したような本発明によるときは鉄粉をＣｕ被覆
したものを用いることにより軸体などの相手部材に対す
る好ましいなじみ性と卓越した耐食性を共に具備しなが
らそうした鉄粉粒子間に高力銅系合金たるマンガン青銅
分が安定強固に結合されることから強度においても優れ
た特性を有する焼結合金材を提供し得るものであり、又
その好ましい製造法を提供するものであって工業的にそ
の効果の大きい発明である。``Effects of the Invention'' According to the present invention as explained above, by using iron powder coated with Cu, it is possible to achieve both favorable compatibility with mating members such as shafts and excellent corrosion resistance, and to improve the bond between the iron powder particles. Since the manganese bronze component, which is a high-strength copper-based alloy, is stably and firmly bonded to the sintered alloy material, it is possible to provide a sintered alloy material having excellent properties in terms of strength, and also to provide a preferable method for producing the same. This invention has great industrial effects.
Claims (1)
、Ｚｎ：６〜２４ｗｔ％、Ｓｎ：０．０６〜０．６ｗｔ
％、Ａｌ：０〜３ｗｔ％ を含有すると共に、 Ｍｎ：０．１〜３ｗｔ％ を含有し、しかも前記ＦｅがＣｕにより実質的完全状態
に被覆され、気孔率１５〜２８ｖｏｌ％とされたことを
特徴とする焼結合金材。 ２、Ｆｅ：２０〜６４ｗｔ％、Ｃｕ：２４．２〜５８．
７ｗｔ％、Ｚｎ：４．５〜２３．８ｗｔ％、Ｓｎ：０．
０５〜０．６ｗｔ％、Ａｌ：０〜２．９８ｗｔ％ を含有すると共に Ｍｎ：０．０８〜２．９８ｗｔ％ を含有し、しかも黒鉛、二硫化モリブデン、鉛のような
固体潤滑材の１種または２種以上を０．５〜５ｗｔ％を
含有し、前記ＦｅがＣｕにより実質的完全状態に被覆さ
れ、気孔率が１５〜２８ｖｏｌ％とされたことを特徴と
する焼結合金材。 ３、２０〜５０ｗｔ％の銅を被覆した鉄粉１００重量部
に対し、Ｚｎ：３０〜４０ｗｔ％、Ｓｎ：０．３〜１ｗ
ｔ％、Ａｌ：０〜５ｗｔ％、Ｍｎ：０．５〜５ｗｔ％を
含有し残部がＣｕおよび不可避的不純物よりなるマンガ
ン青銅粉を２５〜１５０重量部添加混合した原料粉を圧
粉成形してから焼結し、次いで気孔率１５〜２８ｖｏｌ
％にサイジングすることを特徴とする焼結合金材の製造
法。 ４、原料粉を圧粉成形して得られた圧粉成形体を耐熱性
容器に収容すると共に施蓋し、８００〜９５０℃の還元
性雰囲気で焼結する請求項３に記載の焼結合金材の製造
法。 ５、２０〜５０ｗ％の銅を被覆した鉄粉１００重量部に
対し、Ｚｎ：３０〜４０ｗｔ％、Ｓｎ：０．３〜１ｗｔ
％、Ａｌ：０〜５ｗｔ％、Ｍｎ：０．５〜５ｗｔ％を含
有し残部がＣｕおよび不可避的不純物よりなるマンガン
青銅粉を１９．７〜１４９．５重量部と黒鉛、二硫化モ
リブデンまたは鉛のような固形潤滑材の１種または２種
以上を０．５〜５．３重量部を添加混合した原料粉を圧
粉成形してから焼結し、次いで気孔率１５〜２８ｖｏｌ
％にサイジングすることを特徴とする焼結合金材の製造
法。 ６、原料粉を圧粉成形して得られた圧粉成形体を耐熱性
容器内に底面から離隔した状態で収容すると共に施蓋し
、８００〜９５０℃の還元性雰囲気で焼結する請求項５
に記載の焼結合金材の製造法。[Claims] 1. Fe: 20 to 64 wt%, Cu: 27 to 59 wt%
, Zn: 6-24wt%, Sn: 0.06-0.6wt
%, Al: 0 to 3 wt%, and Mn: 0.1 to 3 wt%, and the Fe was substantially completely covered with Cu, and the porosity was 15 to 28 vol%. Characteristic sintered metal material. 2, Fe: 20-64 wt%, Cu: 24.2-58.
7 wt%, Zn: 4.5 to 23.8 wt%, Sn: 0.
Contains 0.05 to 0.6 wt%, Al: 0 to 2.98 wt%, and Mn: 0.08 to 2.98 wt%, and is a type of solid lubricant such as graphite, molybdenum disulfide, and lead. Or a sintered alloy material containing 0.5 to 5 wt% of two or more kinds, wherein the Fe is substantially completely covered with Cu and the porosity is 15 to 28 vol%. 3. Zn: 30-40 wt%, Sn: 0.3-1 w for 100 parts by weight of iron powder coated with 20-50 wt% copper
t%, Al: 0 to 5 wt%, Mn: 0.5 to 5 wt%, and the balance is Cu and unavoidable impurities. sintered from, then porosity 15-28vol
% sizing method. 4. The sintered alloy according to claim 3, wherein the powder compact obtained by compacting the raw material powder is housed in a heat-resistant container, the lid is closed, and sintered in a reducing atmosphere at 800 to 950°C. Manufacturing method of wood. 5. Zn: 30-40 wt%, Sn: 0.3-1 wt for 100 parts by weight of iron powder coated with 20-50 w% copper
%, Al: 0 to 5 wt%, Mn: 0.5 to 5 wt%, the balance being Cu and inevitable impurities, and 19.7 to 149.5 parts by weight of graphite, molybdenum disulfide or lead. A raw material powder prepared by adding and mixing 0.5 to 5.3 parts by weight of one or more solid lubricants such as
% sizing method. 6. The compacted body obtained by compacting the raw material powder is housed in a heat-resistant container in a state separated from the bottom surface, the lid is closed, and the compacted body is sintered in a reducing atmosphere at 800 to 950°C. 5
A method for producing a sintered metal material described in .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63110562A JP2617334B2 (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and method for producing the same |
| GB8910565A GB2219601B (en) | 1988-05-09 | 1989-05-08 | Sintered alloy material and process for the preparation of the same |
| HK767/91A HK76791A (en) | 1988-05-09 | 1991-10-03 | Sintered alloy material and process for the preparation of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63110562A JP2617334B2 (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01283345A true JPH01283345A (en) | 1989-11-14 |
| JP2617334B2 JP2617334B2 (en) | 1997-06-04 |
Family
ID=14538978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63110562A Expired - Fee Related JP2617334B2 (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and method for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2617334B2 (en) |
| GB (1) | GB2219601B (en) |
| HK (1) | HK76791A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2356222B1 (en) * | 2011-02-15 | 2012-05-31 | Sinterizados Y Metalurgia De Solsona, S.A. | PROCEDURE FOR THE MANUFACTURE OF SINTERED SLIDING BEARINGS. |
| JP6035906B2 (en) * | 2012-06-29 | 2016-11-30 | オムロン株式会社 | Object detection actuator and object detection switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5651554A (en) * | 1979-10-01 | 1981-05-09 | Shiyooraito:Kk | Machine parts obtained by powder metallurgical method |
| JPS5690954A (en) * | 1979-12-22 | 1981-07-23 | Tatsunosuke Kikuchi | Sintered alloy |
| JPS5896850A (en) * | 1981-12-04 | 1983-06-09 | Hitachi Powdered Metals Co Ltd | Low wear sintered sliding material containing oil |
| JPS6082646A (en) * | 1983-10-11 | 1985-05-10 | Tatsunosuke Kikuchi | Sintered alloy and its manufacture |
| JPS60200927A (en) * | 1984-03-27 | 1985-10-11 | Tatsunosuke Kikuchi | Production of sintered alloy |
| JPS61210155A (en) * | 1985-03-15 | 1986-09-18 | Hitachi Powdered Metals Co Ltd | Iron-brass sintered sliding material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2067221B (en) * | 1979-12-22 | 1984-01-11 | Tokyo Oilless Metal Ind | Sintered alloys |
-
1988
- 1988-05-09 JP JP63110562A patent/JP2617334B2/en not_active Expired - Fee Related
-
1989
- 1989-05-08 GB GB8910565A patent/GB2219601B/en not_active Expired - Lifetime
-
1991
- 1991-10-03 HK HK767/91A patent/HK76791A/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5651554A (en) * | 1979-10-01 | 1981-05-09 | Shiyooraito:Kk | Machine parts obtained by powder metallurgical method |
| JPS5690954A (en) * | 1979-12-22 | 1981-07-23 | Tatsunosuke Kikuchi | Sintered alloy |
| JPS5896850A (en) * | 1981-12-04 | 1983-06-09 | Hitachi Powdered Metals Co Ltd | Low wear sintered sliding material containing oil |
| JPS6082646A (en) * | 1983-10-11 | 1985-05-10 | Tatsunosuke Kikuchi | Sintered alloy and its manufacture |
| JPS60200927A (en) * | 1984-03-27 | 1985-10-11 | Tatsunosuke Kikuchi | Production of sintered alloy |
| JPS61210155A (en) * | 1985-03-15 | 1986-09-18 | Hitachi Powdered Metals Co Ltd | Iron-brass sintered sliding material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2617334B2 (en) | 1997-06-04 |
| HK76791A (en) | 1991-10-11 |
| GB2219601B (en) | 1991-05-01 |
| GB2219601A (en) | 1989-12-13 |
| GB8910565D0 (en) | 1989-06-21 |
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