JPH01283346A - Sintered alloy material and its production - Google Patents
Sintered alloy material and its productionInfo
- Publication number
- JPH01283346A JPH01283346A JP63110563A JP11056388A JPH01283346A JP H01283346 A JPH01283346 A JP H01283346A JP 63110563 A JP63110563 A JP 63110563A JP 11056388 A JP11056388 A JP 11056388A JP H01283346 A JPH01283346 A JP H01283346A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sintered
- porosity
- raw material
- weight
- 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.)
- Pending
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 229910052718 tin Inorganic materials 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 238000004513 sizing Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 30
- 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
- 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
- 239000011572 manganese Substances 0.000 abstract description 26
- 239000010949 copper Substances 0.000 abstract description 20
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 12
- 229910000906 Bronze Inorganic materials 0.000 abstract description 9
- 239000010974 bronze Substances 0.000 abstract description 9
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 9
- 230000013011 mating Effects 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 15
- 229910001369 Brass Inorganic materials 0.000 description 12
- 239000010951 brass Substances 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000011133 lead Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005056 compaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 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
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- -1 manganese-aluminum Chemical compound 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 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
- 239000003921 oil Substances 0.000 description 2
- 239000010723 turbine oil Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 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
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
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
じみ性が良好であり、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 manufacturing the same, which have excellent strength and corrosion resistance, good compatibility with mating members such as shaft materials, and a low coefficient of friction. The present invention aims to provide a sintered alloy material that is small and has 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＋１およびその製造技術。(Industrial application field) Sintered oil-impregnated bearing, Senkyokukino+1 and its 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ｉ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−銅一炭素系、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, cylindrical, flanged cylindrical, spherical, etc. bearings used in household electrical equipment, audio equipment, office machinery, agricultural machinery, automobiles, and other transport/loading equipment, etc. There are various specifications regarding materials, and their main component compositions are pure iron, iron-copper, iron-carbon, iron-copper-carbon, iron-copper-lead, bronze, copper, and lead-based. There is a relatively wide variety of materials and types, including bronze.
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。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 body made of these mixed powders in a reducing atmosphere.
（発明が解決しようとする問題点）
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Ｈに対する
なしめ性や耐食性に劣っているので利用上制限を受ける
。(Problems to be Solved by the Invention) The above-mentioned oil-impregnated bearings mainly made of iron have excellent skeletal strength and are preferable for high-load applications, but they have poor toughness and corrosion resistance against the mating part H, so they are difficult to use. subject to restrictions.
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−銅一鉛、鉄−銅−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 based 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号公報による鉄粉と黄
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７ざじみ性などにおい
て充分でない。Although the iron powder and brass powder disclosed in the above-mentioned Japanese Patent Application Laid-open No. 56-51554 is good in terms of corrosion resistance, it is not sufficient in terms of strength and resistance against 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す、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. In addition, it is insufficient in terms of compatibility with mating members such as shaft members.
「発明の構成」
（問題点を解決するための手段）
１、 Ｆｅ： ２０−８０ｗｔ％、Ｃｕ： １１〜５
２ｉｙｔ％、Ｚｒ＋：６〜３２ｗｔ％、 Ｓｎ ： ０
．１〜０．８ｗｔ％、を含有すると共に、
Ｍｎ ： ０．１〜４．０ｗｔ％、Ａβ：０−４．０ｗ
ｔ％を含有し、気孔率１５〜２８ｖｏｌ％とされたこと
を特徴とする焼結合金材。"Structure of the invention" (Means for solving problems) 1. Fe: 20-80wt%, Cu: 11-5
2iyt%, Zr+: 6-32wt%, Sn: 0
．． 1 to 0.8 wt%, Mn: 0.1 to 4.0 wt%, Aβ: 0 to 4.0 w
t% and a porosity of 15 to 28 vol%.
２、 Ｆｅ： ２０〜８０ｗｔ％、Ｃｕ ： ８．３
〜５１．７ｗｔ％、Ｚｎ ： ４．５〜３１．８ｗｔ％
、Ｓｎ ： ０．０５〜０．８ ｗｔ％を含有すると共
に、
Ｍｎ ： ０．０８〜４．０ ｗｔ％、八Ｅ ：
０〜４．０ｗｔ％を含有し、且つ黒鉛、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
０．５〜５．０％含有し、気孔率が１５〜２８ｖｏｌ％
とされたことを特徴とする焼結合金材。2. Fe: 20-80wt%, Cu: 8.3
~51.7wt%, Zn: 4.5~31.8wt%
, Sn: 0.05 to 0.8 wt%, Mn: 0.08 to 4.0 wt%, and 8E:
0 to 4.0 wt%, and 0.5 to 5.0% of one or more solid lubricants such as graphite, molybdenum disulfide, or lead, and a porosity of 15 to 28 vol%.
A sintered metal material characterized by:
３、鉄粉１００重量部に対し、Ｚｎ：３０〜４０ｗｔ％
、Ｍｎ ： ０．５〜５ｉｖｔ％、Ｓｎ ： ０．３〜
１．０ｗｔ％、Ａｉ１！：０〜５．０ｗｔ％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２５〜４００重量部を添加混合した原料粉を圧粉成形
し、次いで焼結してから気孔率１５〜２ＢｖｏＩ１％に
ザ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 to 40 wt% relative to 100 parts by weight of iron powder
, Mn: 0.5~5ivt%, Sn: 0.3~
1.0wt%, Ai1! : 25 to 400 parts by weight of manganese bronze powder containing 0 to 5.0 wt% with the remainder being Cu and unavoidable impurities is added and mixed, and the raw material powder is compacted, then sintered, and then the porosity is 15 to 15. A method for producing a sintered metal material, characterized by sizing to 2BvoI1%.
４、鉄粉１００重量部に対し、Ｚｎ：３０〜４０ｉｙｔ
％、Ｍｎ ： ０．５〜５．０ｗｔ％、Ｓｎ：０．３〜
１．０ｉ％、Ｉｆ： ０〜５．Ｑｗｔ％を含有し残部が
Ｃｕおよび不可避不純物よりなるマンガン青銅粉１７．
７〜３８７．８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１５〜２８ｖｏｆｆ％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. Zn: 30 to 40 iyt per 100 parts by weight of iron powder
%, Mn: 0.5~5.0wt%, Sn: 0.3~
1.0i%, If: 0-5. Manganese bronze powder containing Qwt% with the balance consisting of Cu and unavoidable impurities 17.
7 to 387.8 parts by weight and 0.5 to 387.8 parts by weight of one or more solid lubricants such as graphite, molybdenum disulfide, or lead.
A method for producing a sintered alloy material, which comprises compacting and sintering raw material powder to which 5.3 parts by weight is added and mixed, and then sizing to a porosity of 15 to 28 voff%.
（作用）
Ｆｅ： ２０〜８０ｗｔ％、Ｃｕ： １１〜５２ｗｔ％
、Ｚｎ：６〜３２ｗｔ％、Ｓｎ ： ０．１〜０．８ｗ
ｔ％、Ａｌ：０〜４．０ｗｔ％を含有すると共にＭｎ：
０．１〜４．０ｗｔ％を含有することにより強度を確保
しなか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
Ｍｎ、Ａｊ！、Ｓｎの適量添加で銅系高力合金たるマン
ガン青銅としての強度を鉄粉粒子間に得しめ、同時に耐
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: 20-80wt%, Cu: 11-52wt%
, Zn: 6-32wt%, Sn: 0.1-0.8w
t%, Al: 0 to 4.0 wt%, and Mn:
By containing 0.1 to 4.0 wt%, strength is ensured, compatibility with the mating member is maintained, and excellent corrosion resistance is exhibited. That is, Mn, Aj! as above! By adding an appropriate amount of Sn, the strength of manganese bronze, which is a copper-based high-strength alloy, is obtained between the iron powder particles, and at the same time, the corrosion resistance is appropriately improved, and the compatibility with the mating member is not impaired.
Ｆｅが２０ｗｔ％以下では鉄粉粒子の骨格的強度が充分
に得られず、又他の成分を多量に必要とし高価となる。If Fe is less than 20 wt%, sufficient skeletal strength of the iron powder particles cannot be obtained, and large amounts of other components are required, resulting in high cost.
一方８０ｗｔ％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。On the other hand, a material containing more than 80 wt% of Fe increases the coefficient of friction, does not ensure compatibility with a mating member, and rapidly deteriorates corrosion resistance.
Ｃｕが１１．０ｗｔ％以上となることによりなじみ性を
確保し、又５２訂％を上限とすることで低コスト性を得
しめる。Compatibility is ensured by setting the Cu content to 11.0 wt% or more, and low cost is achieved by setting the upper limit to 52 wt%.
Ｚｎを６．０ｗｔ％以上とすることでＣｕ、、Ｍｎ、八
ｋ、Ｓｎ等と相俟って耐食性を確保し、又３２．Ｏｗｔ
％を上限とすることによりなじみ性を適切に維持する。By setting Zn to 6.0 wt% or more, corrosion resistance is ensured in combination with Cu, Mn, 8K, Sn, etc., and 32. Owt
% to maintain appropriate compatibility.
Ｍｎが０．１ｗｔ％以上とすることにより強度および耐
食性を有効に高める。一方４．０ｗｔ％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 Mn to 0.1 wt% or more, strength and corrosion resistance are effectively increased. On the other hand, by setting the upper limit to 4.0 wt%, conformability is maintained and an increase in the coefficient of friction is suppressed.
圧粉成形し焼結後、サイジングした気孔率を１５ｖｏｌ
％以上とすることにより軸受）４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。After powder compaction and sintering, the sized porosity is 15vol.
% or more, it is possible to obtain an appropriate oil content for bearings (4) and improve the lubrication performance.
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。On the other hand, strength is ensured by ensuring that the porosity does not exceed 28 vol%.
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．Ｑｗ
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. Qw
The strength of the product is maintained by not exceeding t%.
Ｚｎ： ３ ０ 〜４ ０ｗｔ％、 Ｍｎ： ０．
５ 〜５．０ｗｔ％、 Ｓｎ二０．３〜１．０ｗｔ％、
へβ二〇〜５．０ｗｔ％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用いることにより
Ｃｕ、、Ｚｎ、 Ｍｎ、Δ［、Ｓｎ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と共に銅
系高力合金としての特性を鉄粉粒子間において的確に発
揮する。Zn: 30 to 40 wt%, Mn: 0.
5 ~ 5.0 wt%, Sn2 0.3 ~ 1.0 wt%,
By using manganese bronze powder containing 20 to 5.0 wt% of β and the remainder consisting of Cu and unavoidable impurities, Cu, Zn, Mn, Δ[, and Sn are simultaneously added as an alloy, and these components are This avoids the hassle of preparing each separately and mixing them sequentially. In addition, segregation of the blended components is appropriately prevented, a uniform mixed sintered state is easily formed, and the characteristics of a copper-based high strength alloy are accurately exhibited between the iron powder particles.
８００℃〜９５０℃の焼結温度を採用することにより前
記したような鉄粉粒子とマンガン青銅としての銅系高力
合金粉末とが適切に焼結せしめられる。By employing a sintering temperature of 800° C. to 950° C., the above-mentioned iron powder particles and the copper-based high strength alloy powder as manganese bronze can be appropriately sintered.
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り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 a heat-resistant container and is sintered with a lid, thereby preventing loss of Zn due to dispersion and forming a uniform sintered state.
サイジング後の気孔率を１５ｖｏＩ１％以上とすること
により焼結組織内に好ましい含油空隙を分散形成し、軸
受材として利用する場合に好ましい潤滑特性を得しめる
。又この気孔率を２８ｖｏ＃％以下とすることによって
適切な圧環強度などを確保し、しかも含有せしめられた
潤滑油の飛散ないし過大な流出を防止する。By setting the porosity after sizing to 15voI1% or more, preferable oil-impregnated voids are dispersed and formed in the sintered structure, and preferable lubrication properties are obtained when used as a bearing material. Further, by setting the porosity to 28 vo#% or less, appropriate radial crushing strength is ensured, and furthermore, scattering or excessive outflow of the contained lubricating oil is prevented.
（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Ｍ、ｎを含有した焼結合金であって、これらの
成分は各別に準備し混合してもよい。然し合金体として
材料を準備してよいことは前記の通りで、マンガン−ア
ルミ合金と黄銅の各粉末と鉄粉、９５〜９８Ｍｎ合金と
黄銅の各粉末および鉄粉粉末などを採用することができ
る。然し好ましい原料としては純鉄粉末とマンガン青銅
粉末である。(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 M and n together with n, and these components may be prepared separately and mixed. However, as mentioned above, materials may be prepared as alloys, and manganese-aluminum alloy and brass powders and iron powder, 95-98Mn alloy and brass powders, iron powder, etc. can be used. . However, the preferred raw materials are pure iron powder and manganese bronze powder.
Ｆｅは一般的に２０〜８０−ｔ％であるが、好ましくは
３０〜６０ｗｔ％であり、より好ましくは４０了で
シｌ゛
・ヨー゛イＯ
〜５５圓ｔ％である。Fe is generally 20 to 80 wt%, preferably 30 to 60 wt%, and more preferably 40 to 55 wt%.
又Ｃｕは一般的には上記のように１１〜５２ｗｔ％であ
るが、好ましくは２５〜５０ｉ％、より好ましくは３５
〜４５ｗｔ％とすべきである。Further, Cu is generally 11 to 52 wt% as mentioned above, preferably 25 to 50i%, more preferably 35 wt%.
It should be ~45 wt%.
Ｚｎの一般的範囲は６〜３２ｗｔ％であるが、好ましく
は８〜２５ｗｔ％、より好ましくは１０〜２５圓ｔ％で
ある。The general range for Zn is 6-32 wt%, preferably 8-25 wt%, more preferably 10-25 wt%.
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０．１〜４．０ｗｔ％であり、より好ましくは０．５
〜２．０ｗｔ％である。The preferred range for Mn is 0.1 to 4.0 wt% within the general range described above, more preferably 0.5 wt%.
~2.0wt%.
なお本発明によるものはＡｌを例えばＪＩＳ ）１２２
０５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Ｍｎ青銅を用い製品として４．０ｗｔ％以
下を含有してもよい。即ちこの程度の脣を含有しても強
度その他の特性に殊更に変化を来すことがないが、Ａｌ
を実質的に含有しないものでもよい。In addition, in the case of the present invention, Al is used in accordance with JIS) 122, for example.
5.0 wt% as specified in Table 2 in 05
Mn bronze containing up to 4.0 wt% may be used as a product. In other words, even if the aluminum is contained to this extent, there will be no particular change in strength or other properties.
It may also be one that does not substantially contain.
圧粉成形は一般的に２〜３Ｔｏｎ／ｃＪ程度の圧下で行
われ、その気孔率は２２〜３５ｖｏｌ％である。Powder compaction is generally performed under a pressure of about 2 to 3 Ton/cJ, and the porosity is 22 to 35 vol%.
２２ｖｏｌ％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３５ｖｏｌ％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
。If it is less than 22 vol %, 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 vol% is likely to be damaged or chipped during sintering and handling.
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。なおこ
のような焼結時の揮散脱亜鉛防止は上記のような合金体
粉末におけるＳｎ分の存在によっても適切に達成し得る
。Sintering is carried out in a reducing atmosphere at 800 to 950°C, but as mentioned above, in order to prevent the Zn content from being volatilized and dezincified, it is necessary to store it in a heat-resistant container and sinter it with a lid on. preferable. Of course, it may be carried out by being buried in carbon powder. Note that such prevention of volatilization and dezincing during sintering can also be appropriately achieved by the presence of Sn in the alloy powder as described above.
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ずる。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１〜３０μｍ１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１０〜１５０μｍ１
特に２０〜１００μｍとされ、粗粉であると共に１０μ
ｍ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 powder floating and shifting. 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 above-mentioned graphite powder that is generally commercially available has a size of 1 to 30 μm1 or 1 to 50 μm, the graphite used as a solid lubricant preferred by the present inventors has a size of 10 to 150 μm1.
In particular, it is 20 to 100 μm, and it is a coarse powder and 10 μm.
Fine particles of 20 μm or less are canted, which facilitates uniform dispersion and prevents 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し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、 Ｓｉ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、Ａｌ含
有黄銅、ｐｂ含有黄銅、Ｎｉ含有黄銅、Ｆｅ含有黄銅、
Ｓｉ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,
Even if a small amount of Ni, Si, etc. is contained, the characteristics of the present invention are not lost, and alloys such as Sn-containing brass, Al-containing brass, PB-containing brass, Ni-containing brass, Fe-containing brass,
Si-containing brass or the like can be used.
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、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。In the case of the present invention, where manganese bronze is used, distortion and dimensional changes occur to some extent due to sintering, so the product is sized to a predetermined size.
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と、Ｃｕ ： ６４．
５ｗｔ％、Ｚｎ：３０ｗｔ％、Ｍｎ：５．０ｗｔ％、Ｓ
ｎ ： ０．５ｗｔ％で１００メソシユ以下とされたマ
ンガン青銅粉を準備し、これらを次の第１表のような重
量割合で混合した。Production Example 1 Iron powder with a particle size of 100 mesosinus or less, and Cu: 64.
5wt%, Zn: 30wt%, Mn: 5.0wt%, S
Manganese bronze powders containing n: 0.5 wt% and 100 mesohydrium or less were prepared, and these were mixed in the weight proportions shown in Table 1 below.
第 １ 表 （重量部）
上記した第１表による■〜■の原料粉は夫々圧粉成形し
て環状の軸受体とし、次いで網材を敷いた耐熱性鉄箱に
入れて底面から離隔した状態に収容すると共に蓋を施し
、８９０℃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。Table 1 (Parts by weight) The raw material powders listed in Table 1 above were compacted into an annular bearing body, and then placed in a heat-resistant iron box lined with mesh material and separated from the bottom surface. The sample was placed in a container and covered with a lid, and sintered for 45 minutes in a reducing atmosphere using AX gas at 890°C.
得られた焼結体は次いでサイジングをなし気孔率２０ｖ
ｏｌ％の製品とし、タービン油を真空含油せしめ
た。The obtained sintered body was then sized to have a porosity of 20v.
It was made into a product of 1.0 mol% and vacuum impregnated with turbine oil.
このような製品および比較材として■ 鉄、■鉄粉と黄
銅を５０ ： ５０の割合で混合したものによる同じ気
孔率製品についての圧環強度、摩擦係数およびｐｖ値１
０００ ｋｇｆ／ｃｆｆｌ ・ｍ／ｍｉｎで４０分以上
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
２表の如くである。Radial crushing strength, friction coefficient, and pv value 1 for such products and comparative materials of the same porosity products made of iron, ■ iron powder and brass mixed at a ratio of 50:50.
The results of measuring the temperature rise value when continuously rotating at 000 kgf/cffl·m/min for 40 minutes or more are shown in Table 2 below.
第２表
父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％、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３表の如くであった。Table 2: Corrosion resistance tests were conducted at 60°C at 80% humidity for each of the products ■ to ■ according to the present invention and the comparative material ■■ as described above, and the period until rust was observed was measured. The results are as follows. It was as shown in Table 3.
第３表
即ち本発明によるものは何れも強度的に優れ、軸受特性
も良好であって、耐食性も用いられた銅合金の量を考慮
すると比較材より大幅に良好となっていることが明かで
ある。Table 3 shows that all the materials according to the present invention have excellent strength and good bearing properties, and their corrosion resistance is significantly better than the comparative materials considering the amount of copper alloy used. be.
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。Production Example 2 In the formulation (■) 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０．０５７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
３８ｋｇ／ｆｌ”であって、好ましい強度を有している
ことを知った。The friction coefficient of this material was 0.057, which confirmed that it had better lubricity, and the radial crushing strength was 38 kg/fl'', which was found to have a preferable strength.
製造例３
製造例１における鉄粉１００重量部に対し、Ｃｕ：６３
．５ｗｔ％、Ｚｎ ： ２９．５ｗｔ％、Ｍｎ：４．８
ｗｔ％、Ｓｎ：０．５ｗｔ％、Ａｊ！：１．７ｗｔ％で
、同じ（１００メツシユ以下とされたマンガン青銅粉を
１５０重量部配合した原料粉を用い、これを製造例１と
同じに圧粉成形、焼結し、サイジングして気孔率２０％
の製品としてからタービン油を真空含油させたものの圧
環強度２９．８ｋｇ／ｗ２、摩擦係数は０、０７３で連
続回転による温度上昇値は２２．２℃であり、好ましい
含油軸受であることが確認された。Production Example 3 Cu: 63 parts by weight for 100 parts by weight of iron powder in Production Example 1
．． 5wt%, Zn: 29.5wt%, Mn: 4.8
wt%, Sn: 0.5wt%, Aj! : Using a raw material powder containing 150 parts by weight of manganese bronze powder with the same content (100 mesh or less) at 1.7 wt%, this was compacted, sintered, and sized in the same manner as in Production Example 1 to determine the porosity. 20%
Since the product was vacuum-impregnated with turbine oil, the radial crushing strength is 29.8 kg/w2, the friction coefficient is 0.073, and the temperature rise due to continuous rotation is 22.2°C, and it has been confirmed that it is a desirable oil-impregnated bearing. Ta.
「発明の効果」′
以上説明したような本発明によるときは軸体などの相手
部材に対する好ましいなじみ性を具備しながら強度、耐
食性において優れた特性を有する焼結合金材を低コスト
に提供し、又その比較的簡易な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 described above, a sintered alloy material having excellent properties in terms of strength and corrosion resistance while having favorable conformability to a mating member such as a shaft body can be provided at a low cost. Moreover, it provides a relatively simple manufacturing method, and is an invention that is industrially highly effective.
Claims (1)
、Ｚｎ：６〜３２ｗｔ％、Ｓｎ：０．１〜０．８ｗｔ％
、を含有すると共に、 Ｍｎ：０．１〜４．０ｗｔ％、Ａｌ：０〜４．０ｗｔ％
を含有し、気孔率１５〜２８ｖｏｌ％とされたことを特
徴とする焼結合金材。 ２、Ｆｅ：２０〜８０ｗｔ％、Ｃｕ：８．３〜５１．７
ｗｔ％、Ｚｎ：４．５〜３２ｗｔ％、Ｓｎ：０．０５〜
０．８ｗｔ％、を含有すると共に、 Ｍｎ：０．０８〜４．０ｗｔ％、Ａｌ：０〜４．０ｗｔ
％を含有し、且つ黒鉛、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０．５〜５．０
％含有し、気孔率が１５〜２８ｖｏｌ％とされたことを
特徴とする焼結合金材。 ３、鉄粉１００重量部に対し、Ｚｎ：３０〜４０ｗｔ％
、Ｍｎ：０．５〜５ｗｔ％、Ｓｎ：０．３〜１．０ｗｔ
％、Ａｌ：０〜５．０ｗｔ％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２５〜４００
重量部を添加混合した原料粉を圧粉成形し、次いで焼結
してから気孔率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
容器内に底面より離隔して収容すると共に施蓋し、８０
０〜９５０℃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、鉄粉１００重量部に対し、Ｚｎ：３０〜４０ｗｔ％
、Ｍｎ：０．５〜５ｗｔ％、Ｓｎ：０．３〜１．０ｗｔ
％、Ａｌ：０〜５．０ｗｔ％を含有し残部がＣｕおよび
不可避不純物よりなるマンガン青銅粉１７．７〜３８７
．８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
容器内に底面より離隔して収容すると共に施蓋し、８０
０〜９５０℃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 80 wt%, Cu: 11 to 52 wt%
, Zn: 6 to 32 wt%, Sn: 0.1 to 0.8 wt%
, Mn: 0.1 to 4.0 wt%, Al: 0 to 4.0 wt%
A sintered alloy material containing the following: and having a porosity of 15 to 28 vol%. 2, Fe: 20-80wt%, Cu: 8.3-51.7
wt%, Zn: 4.5 to 32 wt%, Sn: 0.05 to
0.8 wt%, Mn: 0.08 to 4.0 wt%, Al: 0 to 4.0 wt%
% and one or more solid lubricants such as graphite, molybdenum disulfide or lead from 0.5 to 5.0%.
% and has a porosity of 15 to 28 vol%. 3. Zn: 30 to 40 wt% relative to 100 parts by weight of iron powder
, Mn: 0.5-5wt%, Sn: 0.3-1.0wt
%, Al: 0 to 5.0 wt%, with the balance consisting of Cu and unavoidable impurities.
A method for producing a sintered alloy material, which comprises compacting raw material powder to which parts by weight have been added and mixed, followed by sintering and sizing to a porosity of 15 to 28 vol%. 4. The powder compact obtained by compacting the raw material powder is stored in a heat-resistant container at a distance from the bottom and the lid is closed.
The method for producing a sintered alloy material according to claim 3, wherein the sintering is performed in a reducing atmosphere at 0 to 950°C. 5. Zn: 30 to 40 wt% relative to 100 parts by weight of iron powder
, Mn: 0.5-5wt%, Sn: 0.3-1.0wt
%, Al: 0 to 5.0 wt%, with the balance consisting of Cu and inevitable impurities 17.7 to 387
．． A raw material powder containing 8 parts by weight and 0.5 to 5.3 parts by weight of one or more solid lubricants such as graphite, molybdenum disulfide, or lead is compacted and then sintered. and then sizing to a porosity of 15 to 28 vol%. 6. The powder compact obtained by compacting the raw material powder is stored in a heat-resistant container at a distance from the bottom and the lid is closed.
The method for producing a sintered alloy material according to claim 5, wherein the sintering is performed in a reducing atmosphere at 0 to 950°C.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63110563A JPH01283346A (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and its production |
| GB8910576A GB2218710B (en) | 1988-05-09 | 1989-05-08 | Sintered alloy material and process for the preparation of the same |
| HK766/91A HK76691A (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 |
|---|---|---|---|
| JP63110563A JPH01283346A (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01283346A true JPH01283346A (en) | 1989-11-14 |
Family
ID=14539004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63110563A Pending JPH01283346A (en) | 1988-05-09 | 1988-05-09 | Sintered alloy material and its production |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH01283346A (en) |
| GB (1) | GB2218710B (en) |
| HK (1) | HK76691A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976695A (en) * | 1996-10-02 | 1999-11-02 | Westaim Technologies, Inc. | Thermally sprayable powder materials having an alloyed metal phase and a solid lubricant ceramic phase and abradable seal assemblies manufactured therefrom |
| US20050118051A1 (en) * | 2003-02-21 | 2005-06-02 | Akira Harada | Porous material and method for producing porous material |
| FR2907468B1 (en) * | 2006-10-20 | 2009-01-23 | Airbus France Sas | INTERFACE FOR ADAPTING LUBRICATION AND HARDNESS BETWEEN TWO PIECES OF TITANIUM OR TITANIUM ALLOY IN MOTION RELATING TO ONE ANOTHER. |
| CN111719086B (en) * | 2019-03-21 | 2022-03-22 | 南京理工大学 | Iron-based medium-high temperature self-lubricating material and preparation method thereof |
Citations (5)
| 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 |
| JPS5696001A (en) * | 1979-12-29 | 1981-08-03 | Tatsunosuke Kikuchi | Sintered alloy |
| JPS57169064A (en) * | 1981-04-10 | 1982-10-18 | Hitachi Powdered Metals Co Ltd | Low wear sintered sliding material containing oil |
| 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 |
-
1988
- 1988-05-09 JP JP63110563A patent/JPH01283346A/en active Pending
-
1989
- 1989-05-08 GB GB8910576A patent/GB2218710B/en not_active Expired - Lifetime
-
1991
- 1991-10-03 HK HK766/91A patent/HK76691A/en not_active IP Right Cessation
Patent Citations (5)
| 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 |
| JPS5696001A (en) * | 1979-12-29 | 1981-08-03 | Tatsunosuke Kikuchi | Sintered alloy |
| JPS57169064A (en) * | 1981-04-10 | 1982-10-18 | Hitachi Powdered Metals Co Ltd | Low wear sintered sliding material containing oil |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2218710A (en) | 1989-11-22 |
| GB8910576D0 (en) | 1989-06-21 |
| HK76691A (en) | 1991-10-11 |
| GB2218710B (en) | 1991-05-01 |
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