JPS6288876A - Manufacturing method of cylinder liner - Google Patents
Manufacturing method of cylinder linerInfo
- Publication number
- JPS6288876A JPS6288876A JP60226071A JP22607185A JPS6288876A JP S6288876 A JPS6288876 A JP S6288876A JP 60226071 A JP60226071 A JP 60226071A JP 22607185 A JP22607185 A JP 22607185A JP S6288876 A JPS6288876 A JP S6288876A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder liner
- manufacturing
- land portion
- present
- coated
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、舶用ディーゼルエンジン等に使用されるシリ
ンダライナの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of manufacturing a cylinder liner used in marine diesel engines and the like.
［従来の技術］
一般に、舶用ディーゼルエンジン等に使用されるシリン
ダライナは、内表面をピストンリングが摺動するため耐
摩耗性が要求される。[Prior Art] Cylinder liners used in marine diesel engines and the like are generally required to have wear resistance because piston rings slide on the inner surface.
［発明が解決しようとする問題点］
耐摩耗性を向上させるために、通常考えられることは焼
入れである。しかし、シリンダが比較的大きいため、通
常の方法では一度に焼入れを行えない問題があり、又一
度に焼入れを行えたとしても、熱変形を起す問題があっ
た。[Problems to be Solved by the Invention] In order to improve wear resistance, hardening is usually considered. However, since the cylinder is relatively large, there is a problem in that it cannot be hardened all at once using normal methods, and even if hardening can be done all at once, there is a problem that thermal deformation occurs.
本発明は斯かる実情に鑑み、変形を生じない方法で熱処
理を施して耐摩耗性を向上させるようにしたシリンダラ
イナの製造方法を丘供しようとするものである。In view of these circumstances, the present invention provides a method for manufacturing a cylinder liner in which the cylinder liner is heat treated in a manner that does not cause deformation to improve wear resistance.
［問題点を解決するための手段］
本発明は、内表面に形成したウェーブ形状のランド部に
合金粉末を被覆し、次で該被覆部をレーザ照射によって
溶解し冷却することにより、前記ランド部表面部に耐摩
耗性金ｍＦｉを生成するものである。[Means for Solving the Problems] The present invention covers the wave-shaped land portion formed on the inner surface with alloy powder, and then melts and cools the coated portion by laser irradiation. This produces wear-resistant gold mFi on the surface.
［作 用］
従って、ランド部の表面部だ（′Ｊが部分的に熱処理さ
れることから、変形が防止されしかも耐摩耗性が向上す
る。[Function] Therefore, since the surface portion of the land portion ('J) is partially heat treated, deformation is prevented and wear resistance is improved.
［実 施 例］ 以下、図面を参照して本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図において、１はシリンダライナであり、その内表
面には、ピストンリング２溜動方向に凹凸加工によるウ
ェーブ形状が形成されている。In FIG. 1, reference numeral 1 denotes a cylinder liner, the inner surface of which has a wave shape formed by uneven processing in the direction in which the piston ring 2 is accommodated.
本発明では、先ずこのシリンダライナ１内表面における
ウェーブ形状のランド部１表面に対し、Ｆｅ −Ｂ又は
Ｆｅ−Ｂ−Ｃ，Ｆｅ −３ｉ −Ｂ、Ｆｃ−Ｐ−Ｃ，Ｆ
ｅ −Ｃｒ −Ｐ−Ｃ等の合金粉末を溶射等により被覆
し、更にこの被覆部の上部からレーザ光を照射して溶解
させ冷却しく自然冷却、送風冷部）、これによってラン
ド部３表面に微細な結晶組織の耐摩耗性金属Ｉｉ！５４
を生成するものである。In the present invention, first, Fe-B, Fe-B-C, Fe-3i-B, Fc-P-C, F
Alloy powder such as e-Cr-P-C is coated by thermal spraying or the like, and then a laser beam is irradiated from the upper part of this coated part to melt and cool it. A wear-resistant metal II with a fine crystal structure! 54
is generated.
このようにして、シリンダライナ１のランド部３表面に
生成された金属層４は、高硬度、高耐蝕性が得られるの
で、ランド部３の耐摩耗性が向上する
前記において、熱処理される部分は、ランド部３の表面
だけであり、しかも掻く短時間にて行われるため熱変形
の心配がない。In this way, the metal layer 4 generated on the surface of the land portion 3 of the cylinder liner 1 has high hardness and high corrosion resistance, so that the wear resistance of the land portion 3 is improved. This is done only on the surface of the land portion 3 and is done in a short time, so there is no risk of thermal deformation.
尚、本発明は前記実施例にのみ限定されるものではなく
、本発明の要旨を逸脱しない限り種々変更を加え得るこ
とは勿論である。It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.
［発明の効果］
以上説明したように本発明にＪ：れば、内表面に形成し
たウェーブ形状のランド部表面部に対し金属層をレーザ
照射により生成するようにしたので、熱変形を起すこと
なく耐摩耗性の優れたシリンダライナを製造することが
できる、と言う優れた効果を奏し得る。[Effects of the Invention] As explained above, according to the present invention, a metal layer is generated by laser irradiation on the surface of the wave-shaped land portion formed on the inner surface, so that thermal deformation does not occur. It is possible to produce an excellent effect that a cylinder liner with excellent wear resistance can be manufactured without any problems.
第１図は本発明の方法により製造したシリンダライナの
要部を示す断面図である。
１はシリンダライナ、２はピストンリング、３はランド
部、４は金属層を示す。FIG. 1 is a sectional view showing the main parts of a cylinder liner manufactured by the method of the present invention. 1 is a cylinder liner, 2 is a piston ring, 3 is a land portion, and 4 is a metal layer.
Claims (1)
末を被覆し、次で該被覆部をレーザ照射によつて溶解し
冷却することにより、前記ランド部表面部に耐摩耗性金
属層を生成することを特徴とするシリンダライナの製造
方法。1) A wave-shaped land portion formed on the inner surface is coated with alloy powder, and then the coated portion is melted and cooled by laser irradiation to form a wear-resistant metal layer on the surface portion of the land portion. A method for manufacturing a cylinder liner, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60226071A JPS6288876A (en) | 1985-10-11 | 1985-10-11 | Manufacturing method of cylinder liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60226071A JPS6288876A (en) | 1985-10-11 | 1985-10-11 | Manufacturing method of cylinder liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6288876A true JPS6288876A (en) | 1987-04-23 |
Family
ID=16839353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60226071A Pending JPS6288876A (en) | 1985-10-11 | 1985-10-11 | Manufacturing method of cylinder liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6288876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000668A (en) * | 1988-04-27 | 1991-03-19 | Diesel Kiki Co., Ltd. | Distribution-type fuel injection pump |
-
1985
- 1985-10-11 JP JP60226071A patent/JPS6288876A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000668A (en) * | 1988-04-27 | 1991-03-19 | Diesel Kiki Co., Ltd. | Distribution-type fuel injection pump |
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