JPS61178050U - - Google Patents
Info
- Publication number
- JPS61178050U JPS61178050U JP6017985U JP6017985U JPS61178050U JP S61178050 U JPS61178050 U JP S61178050U JP 6017985 U JP6017985 U JP 6017985U JP 6017985 U JP6017985 U JP 6017985U JP S61178050 U JPS61178050 U JP S61178050U
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- reinforced
- internal combustion
- layer
- light alloy
- 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
- 239000000835 fiber Substances 0.000 claims 10
- 239000010410 layer Substances 0.000 claims 6
- 238000002485 combustion reaction Methods 0.000 claims 5
- 229910001234 light alloy Inorganic materials 0.000 claims 5
- 239000000843 powder Substances 0.000 claims 4
- 239000012784 inorganic fiber Substances 0.000 claims 3
- 239000010953 base metal Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 239000002344 surface layer Substances 0.000 claims 2
- 239000000956 alloy Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
第１図は本考案の一実施例に係るピストンの縦
断面図、第２図は該ピストンにおける複合強化層
の熱膨張係数を示すグラフである。
１…ピストン、２…頭頂部、３…第一層、４…
第二層、５…第三層。
FIG. 1 is a longitudinal sectional view of a piston according to an embodiment of the present invention, and FIG. 2 is a graph showing the coefficient of thermal expansion of a composite reinforcing layer in the piston. 1...Piston, 2...Top of head, 3...First layer, 4...
2nd layer, 5...3rd layer.
Claims (1)
で強化された内燃機関用軽合金製ピストンにおい
て、 前記繊維強化層の体積率が表層から内層に向つ
て低下し、基体金属層に隣接する層が、基体金属
層を形成する合金材料、またはその主成分で形成
された粉末と、無機繊維とを混合した低繊維体積
率の繊維成形体により強化されていることを特徴
とする内燃機関用繊維強化軽合金製ピストン。 (2) 前記低繊維体積率が、２〜１０％であるこ
とを特徴とする実用新案登録請求の範囲第１項に
記載された内燃機関用繊維強化軽合金製ピストン
。 (3) 前記低繊維体積率の繊維成形体を形成する
繊維および粉末が、次の条件： ○ａ１≦粉末粒径／繊維径≦２０ ○ｂ粉末量（体積）／繊維量（体積）≧２ を満足することを特徴とする実用新案登録請求の
範囲第１項、または第２項に記載された内燃機関
用繊維強化軽合金製ピストン。 (4) 前記繊維強化層の表層が無機繊維と断熱性
の良好な粉末とを混合した高繊維体積率の繊維成
形体で強化されていることを特徴とする実用新案
登録請求の範囲第１項、第２項、または第３項に
記載された内燃機関用繊維強化軽合金製ピストン
。[Scope of Claim for Utility Model Registration] (1) A light alloy piston for internal combustion engines in which the top of the piston is reinforced with inorganic fibers having good heat insulation properties, in which the volume fraction of the fiber-reinforced layer decreases from the surface layer toward the inner layer. However, the layer adjacent to the base metal layer is reinforced by a fiber molded body with a low fiber volume percentage, which is a mixture of the alloy material forming the base metal layer or a powder formed from its main component and inorganic fibers. A fiber-reinforced light alloy piston for internal combustion engines, which is characterized by: (2) The fiber-reinforced light alloy piston for an internal combustion engine according to claim 1, wherein the low fiber volume fraction is 2 to 10%. (3) The fibers and powder forming the fiber compact with the low fiber volume fraction meet the following conditions: ○a1≦powder particle size/fiber diameter≦20 ○bpowder amount (volume)/fiber amount (volume)≧2 A fiber-reinforced light alloy piston for an internal combustion engine as set forth in claim 1 or 2 of the utility model registration claim, which satisfies the following. (4) Utility model registration claim 1, characterized in that the surface layer of the fiber-reinforced layer is reinforced with a fiber molded product with a high fiber volume percentage, which is a mixture of inorganic fibers and powder with good heat insulation properties. , the fiber-reinforced light alloy piston for an internal combustion engine as described in item 2 or item 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6017985U JPS61178050U (en) | 1985-04-24 | 1985-04-24 | |
| US06/855,062 US4740428A (en) | 1985-04-24 | 1986-04-23 | Fiber-reinforced metallic member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6017985U JPS61178050U (en) | 1985-04-24 | 1985-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61178050U true JPS61178050U (en) | 1986-11-06 |
Family
ID=30587285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6017985U Pending JPS61178050U (en) | 1985-04-24 | 1985-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61178050U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5974247A (en) * | 1982-10-20 | 1984-04-26 | Toyota Motor Corp | Fiber reinforced metallic composite member and its production |
| JPS5982552A (en) * | 1982-10-29 | 1984-05-12 | Toyota Motor Corp | Piston of internal-combustion engine |
-
1985
- 1985-04-24 JP JP6017985U patent/JPS61178050U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5974247A (en) * | 1982-10-20 | 1984-04-26 | Toyota Motor Corp | Fiber reinforced metallic composite member and its production |
| JPS5982552A (en) * | 1982-10-29 | 1984-05-12 | Toyota Motor Corp | Piston of internal-combustion engine |
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