JPH0210202B2 - - Google Patents
Info
- Publication number
- JPH0210202B2 JPH0210202B2 JP57124058A JP12405882A JPH0210202B2 JP H0210202 B2 JPH0210202 B2 JP H0210202B2 JP 57124058 A JP57124058 A JP 57124058A JP 12405882 A JP12405882 A JP 12405882A JP H0210202 B2 JPH0210202 B2 JP H0210202B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sintering
- base material
- melting
- strength
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002783 friction material Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000004663 powder metallurgy Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000010949 copper Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
〔産業上の利用分野〕
本発明は銅粉、鉄粉等の金属粉末を母材成分と
した摺動摩擦材配合物を焼結するに際し、金属短
繊維を添加して溶融焼結する方法に関するもので
ある。
〔従来の技術〕
一般に焼結による部材の製造方法は母材成分を
完全には溶融することなく金属結合させる固相反
応であるため長時間の熱処理を必要としている。
又そのため同一成分で比較すると焼結法による
強度は溶解法のそれよりかなり低下する傾向があ
る。
〔発明が解決しようとする問題点および問題点を
解決する手段〕
本発明はこの従来の固相焼結法を改善し母材成
分であるFe粉及び／又はCu粉を主体とした金属
粉末の１部ないしは全部を溶融させると同時に粉
末治金の特徴を更に利用し、金属短繊維を添加す
ることにより溶融部の流出を阻止すると共にその
強度の向上を図つたものである。
かくて本発明によれば高温炉内の無加圧加熱に
より溶融焼結によつて短時間の熱処理で製品に大
きな強度を附与することが可能となり、又金属短
繊維の補強効果により製品中に多少の空孔があつ
ても強度低下が少ないという特徴が得られる。
従つて本発明法の適用を受けた製品は例えば低
摩擦係数の制輪子、すり板、ドライベアリング等
の用途に極めて有用である。
〔実施例〕
以下に本発明を摩擦材の製造に適用した実施例
を示す。又比較のため従来法を併記した。
実施例 １
(1) 配合組成
[Industrial Application Field] The present invention relates to a method of adding short metal fibers and melting and sintering when sintering a sliding friction material compound containing metal powder such as copper powder or iron powder as a base material component. It is. [Prior Art] In general, a method for manufacturing a member by sintering requires a long heat treatment because it involves a solid phase reaction in which base material components are metallurgically bonded without completely melting them. Furthermore, when comparing the same components, the strength obtained by the sintering method tends to be considerably lower than that obtained by the melting method. [Problems to be Solved by the Invention and Means for Solving the Problems] The present invention improves this conventional solid-phase sintering method to produce metal powders mainly composed of Fe powder and/or Cu powder as base material components. By melting part or all of the material and at the same time making use of the characteristics of powder metallurgy, adding short metal fibers prevents the melt from flowing out and improves its strength. Thus, according to the present invention, it is possible to impart great strength to a product with a short heat treatment by melting and sintering by pressureless heating in a high-temperature furnace, and the reinforcing effect of the short metal fibers makes it possible to impart great strength to the product. Even if there are some pores in the material, there is little decrease in strength. Therefore, products to which the method of the present invention is applied are extremely useful for applications such as brake shoes with low friction coefficients, sliders, dry bearings, and the like. [Example] Below, an example in which the present invention is applied to the production of a friction material will be shown. The conventional method is also shown for comparison. Example 1 (1) Blend composition
【表】
とができる金属粉。
(2) 製造条件
●プレス成形圧（予備成形）
Cu系は3ton／cm2、Fe系は4ton／cm2で夫々
実施した。
●焼結温度一時間
Cu系は850℃−60分、Fe系は1100℃−60分
で夫々無加圧下で実施した。
尚焼結雰囲気はH2で行い、炉外取出時にN2
を使用した。
(3) 製品の物性[Table] Metal powders that can be produced.
(2) Manufacturing conditions ●Press molding pressure (preforming) Cu-based molding was performed at 3 ton/cm 2 and Fe-based molding was performed at 4 ton/cm 2 . ●Sintering temperature: 1 hour Sintering was carried out at 850℃ for 60 minutes for Cu type and 1100℃ for 60 minutes for Fe type without pressure. The sintering atmosphere is H2 , and N2 is used when taking it out of the furnace.
It was used. (3) Physical properties of the product
【表】
実施例 ２及び３
実施例１に準じて試料を作製し衝撃値と空孔率
の関係を調査し次の如き結果を得た。
母材成分が銅系の場合（実施例２）及び鉄系の
場合（実施例３）の双方について50〜60φμ、１
〜３mm長の銅繊維を金属短繊維として使用し、こ
れら金属短繊維を添加しない比較例を併せて衝撃
値（Kg・cm／cm2）と体積空孔率（％）との関係を
試験し、夫々第１図及び第２図の如き結果を得
た。
これより本発明例の場合には比較例の場合に比
べ強度が約２倍程度向上し、空孔が増加しても繊
維無添加材に比較して強度低下の少ないことが認
められた。
上記の如く本発明法によれば繊維強化によつて
低密度、軟質で強度が大きい製品の得られること
から機械部品に好適な部材を提供することがで
き、又空孔が増加しても強度低下の少ないことか
ら複合材料のベース材として好適な部材を提供で
きる効果がある。
又本発明法によれば母材成分の１部又は全部好
ましくは強化繊維がCu短繊維の場合にはCu短繊
維以外は全部融かすことにより製品強度を上げる
ことができ、しかもこれを無加圧で実施できると
いう利点を有する。[Table] Examples 2 and 3 Samples were prepared according to Example 1, and the relationship between impact value and porosity was investigated, and the following results were obtained. 50 to 60φμ, 1 for both cases where the base material component is copper-based (Example 2) and iron-based (Example 3)
The relationship between impact value (Kg・cm/cm 2 ) and volume porosity (%) was tested using ~3 mm long copper fibers as short metal fibers and a comparative example in which these short metal fibers were not added. , the results shown in FIGS. 1 and 2 were obtained, respectively. From this, it was confirmed that the strength of the inventive examples was approximately twice as high as that of the comparative examples, and that even if the number of pores increased, the strength decreased less than the fiber-free materials. As described above, according to the method of the present invention, a product with low density, softness, and high strength can be obtained by fiber reinforcement, so it is possible to provide a member suitable for mechanical parts, and even with increased porosity, it has high strength. Since there is little deterioration, it is possible to provide a member suitable as a base material for composite materials. In addition, according to the method of the present invention, it is possible to increase the strength of the product by melting part or all of the matrix components, preferably when the reinforcing fibers are Cu staple fibers, by melting all of the fibers other than the Cu staple fibers. It has the advantage that it can be carried out under pressure.
第１図及び第２図は夫々本発明の実施例２及び
実施例３における衝撃値と体積空孔率との関係を
示す図表である。
FIGS. 1 and 2 are charts showing the relationship between impact value and volume porosity in Example 2 and Example 3 of the present invention, respectively.
Claims (1)
合物を焼結するに際し、該金属粉末の１部を金属
短繊維で置換した原材料を予備成形の後、高温炉
用で無加圧の加熱を行い、上記母材の１部又は全
部を溶融せしめて粉末治金することを特徴とする
金属短繊維を添加した摺動摩擦材の溶融焼結法。1. When sintering a compound containing metal powder such as copper powder or iron powder as a base material component, a raw material in which part of the metal powder is replaced with short metal fibers is preformed and then heated in a high-temperature furnace without any modification. A method for melting and sintering a sliding friction material to which short metal fibers are added, characterized in that a part or all of the base material is melted and subjected to powder metallurgy by heating under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12405882A JPS5916909A (en) | 1982-07-16 | 1982-07-16 | Method for fusion sintering with added short metallic fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12405882A JPS5916909A (en) | 1982-07-16 | 1982-07-16 | Method for fusion sintering with added short metallic fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5916909A JPS5916909A (en) | 1984-01-28 |
| JPH0210202B2 true JPH0210202B2 (en) | 1990-03-07 |
Family
ID=14875921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12405882A Granted JPS5916909A (en) | 1982-07-16 | 1982-07-16 | Method for fusion sintering with added short metallic fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916909A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6133870A (en) * | 1984-07-25 | 1986-02-17 | 滋賀ボルト株式会社 | Method of detecting load bearing point |
| CN103981469B (en) * | 2014-05-16 | 2016-01-20 | 吴江市英力达塑料包装有限公司 | A kind of high-strength spring steel and preparation method thereof |
| CN107243638A (en) * | 2017-06-07 | 2017-10-13 | 江苏智造新材有限公司 | A kind of high-precision, wear-resistant sprocket wheel method for preparing powder metallurgy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4855108A (en) * | 1971-11-12 | 1973-08-02 | ||
| JPS5233641A (en) * | 1975-09-09 | 1977-03-14 | Shiono Koryo Kk | Process for preparation of 4-substituted-alpha -methyl-glycidic acid salts |
| JPS5646546A (en) * | 1979-09-21 | 1981-04-27 | Oki Electric Ind Co Ltd | Manufacture of semiconductor device |
| JPS57143455A (en) * | 1981-02-27 | 1982-09-04 | Toray Ind Inc | Manufacture of fiber-reinforced metal |
-
1982
- 1982-07-16 JP JP12405882A patent/JPS5916909A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4855108A (en) * | 1971-11-12 | 1973-08-02 | ||
| JPS5233641A (en) * | 1975-09-09 | 1977-03-14 | Shiono Koryo Kk | Process for preparation of 4-substituted-alpha -methyl-glycidic acid salts |
| JPS5646546A (en) * | 1979-09-21 | 1981-04-27 | Oki Electric Ind Co Ltd | Manufacture of semiconductor device |
| JPS57143455A (en) * | 1981-02-27 | 1982-09-04 | Toray Ind Inc | Manufacture of fiber-reinforced metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5916909A (en) | 1984-01-28 |
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