JPH0226055B2 - - Google Patents
Info
- Publication number
- JPH0226055B2 JPH0226055B2 JP27443685A JP27443685A JPH0226055B2 JP H0226055 B2 JPH0226055 B2 JP H0226055B2 JP 27443685 A JP27443685 A JP 27443685A JP 27443685 A JP27443685 A JP 27443685A JP H0226055 B2 JPH0226055 B2 JP H0226055B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder liner
- wear
- resistant material
- present
- manufacturing
- 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
Links
- 239000000463 material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007751 thermal spraying Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000314 lubricant 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
- 239000003921 oil Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
- F02F1/08—Shape or arrangement of cooling fins; Finned cylinders running-liner and cooling-part of cylinder being different parts or of different material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はシリンダライナの製造方法に係り、特
に摺動面の耐摩耗性が改良されたシリンダライナ
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a cylinder liner, and more particularly to a method for manufacturing a cylinder liner with improved wear resistance on sliding surfaces.
［従来の技術］
舶用デイーゼルエンジン等の大型の往復内燃機
関においては、通常、シリンダブロツクに筒状の
シリンダライナが装着されている。[Prior Art] In large reciprocating internal combustion engines such as marine diesel engines, a cylindrical cylinder liner is usually attached to the cylinder block.
このシリンダライナは、その内周面がピストン
リングと摺動するものであることから、摺動面の
潤滑油保持性（保油性）が高く耐摩耗性に優れて
いること及び十分な強度を有することが特性とし
て要求されており、従来は一般に、片状黒鉛鋳鉄
品が用いられている。 Since the inner peripheral surface of this cylinder liner slides on the piston ring, the sliding surface has high lubricant retention (oil retention), excellent wear resistance, and sufficient strength. This is required as a characteristic, and flake graphite cast iron products have conventionally been generally used.
ところで近年、舶用デイーゼルエンジン等の内
燃機関の燃費の低減、機関出力の増大を図るため
に燃焼室内の燃焼圧力が高められつつあると共に
燃料油の低質化も進められており、これに対応す
べくシリンダライナにも一層耐摩耗性に優れたも
のが要求されている。 Incidentally, in recent years, in order to reduce fuel consumption and increase engine output of internal combustion engines such as marine diesel engines, the combustion pressure in the combustion chamber has been increasing, and the quality of fuel oil has also been reduced. Cylinder liners are also required to have even better wear resistance.
従来、シリンダライナの摺動面の耐摩耗性を改
善する方法として、摺動面にセラミツクス等の耐
摩耗材料を注射する方法がある。 Conventionally, as a method for improving the wear resistance of the sliding surface of a cylinder liner, there is a method of injecting a wear-resistant material such as ceramics into the sliding surface.
［発明が解決しようとする問題点］
しかしながら、現在の溶射技術では、長くて細
い円筒の内面に溶射することは極めて難しく、こ
のため、ストロークの長いエンジンのシリンダラ
イナ等の摺動面に耐摩耗材料を溶射施工すること
は殆ど不可能であつた。[Problems to be solved by the invention] However, with current thermal spraying technology, it is extremely difficult to spray the inner surface of a long, thin cylinder. It was almost impossible to spray the material.
［問題点を解決するための手段］
本発明は上記従来の問題点を解決するものであ
つて、
内周面のピストンと摺動する摺動面を耐摩耗材
料で構成したシリンダライナを製造する方法にお
いて、シリンダライナを軸方向に垂直に分割した
形状を有し、互いに螺子込みにより接続可能な、
複数のシリンダライナ構成部材の内周面に、
各々、耐摩耗材料の層を形成した後、この構成部
材を螺子込み接続して一体とすることを特徴とす
るシリンダライナの製造方法、
を要旨とするものである。[Means for Solving the Problems] The present invention solves the above-mentioned conventional problems by manufacturing a cylinder liner in which the sliding surface that slides on the piston on the inner circumferential surface is made of a wear-resistant material. In the method, the cylinder liner is divided vertically in the axial direction and can be connected to each other by screwing.
On the inner peripheral surface of a plurality of cylinder liner constituent members,
The gist of the present invention is a method of manufacturing a cylinder liner, characterized in that after forming a layer of wear-resistant material, the constituent members are connected together by screws.
以下本発明を図面を参照して詳細に説明する。 The present invention will be described in detail below with reference to the drawings.
第１図は本発明により製造されるシリンダライ
ナ１の断面図である。 FIG. 1 is a sectional view of a cylinder liner 1 manufactured according to the present invention.
本発明においては、製造するシリンダライナを
軸方向に垂直に分割した形状を有し、互いに螺子
込み可能なシリンダライナ構成部材１ａ，１ｂ，
１ｃ……を複数個用意する。 In the present invention, cylinder liner components 1a, 1b, which have a shape in which the cylinder liner to be manufactured is divided perpendicularly to the axial direction, and which can be screwed into each other,
Prepare multiple pieces of 1c...
即ち、第１図において、構成部材１ａは構成部
材１ｂと螺子込み接合するための雌螺子１１が刻
設されており、構成部材１ｂには、構成部材１ａ
と螺子込み接合するための雄螺子１２及び構成部
材１ｃと螺子込み接合するための雌螺子１３が刻
設され、また構成部材１ｃには、構成部材１ｂと
螺子込み接合するための雄螺子１４が刻設されて
いる。 That is, in FIG. 1, the component 1a is provided with a female screw 11 for threaded connection with the component 1b.
A male screw 12 for screwing connection with the component member 1c and a female screw 13 for screwing connection with the component member 1c are carved, and a male screw 14 for screwing connection with the component member 1b is provided on the component member 1c. It is engraved.
構成部材１ａ〜１ｃの長さは、その内周面に溶
射等により耐摩耗性材料の層を容易に形成するこ
とができる程度に十分短いことが好ましく、通常
はシリンダライナのストロークの1/2以下とする。
また、構成部材の長さがあまりに短いと、螺子込
みする構成部材の個数が増えて好ましくない。 The length of the structural members 1a to 1c is preferably short enough to allow a layer of wear-resistant material to be easily formed on the inner circumferential surface by thermal spraying or the like, and is usually 1/2 of the stroke of the cylinder liner. The following shall apply.
Moreover, if the length of the component is too short, the number of components to be screwed will increase, which is undesirable.
なお、各構成部材の長さは同じであつても良く
異なつていても良い。 Note that the lengths of each component may be the same or different.
本発明においては、まず、このような構成部材
１ａ〜１ｃの内周面に耐摩耗材料の層２ａ〜２ｃ
を形成する。 In the present invention, layers 2a to 2c of wear-resistant material are first applied to the inner circumferential surfaces of such constituent members 1a to 1c.
form.
耐摩耗材料層２ａ〜２ｃの耐摩耗材料として
は、特に制限はないが、耐摩耗性のセラミツク、
金属、その他、Mo−TiC等のサーメツト、アモ
ルフアス合金等が挙げられる。 There are no particular restrictions on the wear-resistant material for the wear-resistant material layers 2a to 2c, but wear-resistant ceramics,
Examples include metals, cermets such as Mo-TiC, amorphous alloys, and the like.
また耐摩耗材料層２ａ〜２ｃの形成方法として
も、特に限定されず、溶射法、スパツタリング等
の気相蒸着法等が採用し得るが、本発明において
は耐摩耗性材料の粉末を溶射する方法が最も好ま
しい。溶射方法としては、プラズマ溶射等が挙げ
られる。 Further, the method for forming the wear-resistant material layers 2a to 2c is not particularly limited, and may be a thermal spraying method, a vapor deposition method such as sputtering, etc., but in the present invention, a method of thermally spraying a powder of the wear-resistant material is used. is most preferred. Examples of the thermal spraying method include plasma spraying.
この耐摩耗材料層２ａ〜２ｃの厚さは製造する
シリンダライナに要求される耐摩耗特性に応じて
適宜決定される。 The thickness of the wear-resistant material layers 2a to 2c is appropriately determined depending on the wear-resistant properties required of the cylinder liner to be manufactured.
このようにして耐摩耗材料層２ａ〜２ｃを形成
した構成部材１ａ〜１ｃは、第１図の如く、互い
に螺子込むことによりシリンダライナ１を形成す
る。（なお、第１図において、３，４はシール部
材である。）
このため、構成部材１ａ〜１ｃはシリンダライ
ナ１のストロークの分だけ必要とされ、第１図の
如く、シリンダライナのストロークの約1/3の長
さの構成部材を螺子込み接続する場合には３個の
構成部材が必要とされる。構成部材の数は２個あ
るいは４個以上であつても良いことは言うまでも
ない。 The structural members 1a to 1c on which the wear-resistant material layers 2a to 2c have been formed in this manner are screwed together to form a cylinder liner 1, as shown in FIG. (In Fig. 1, 3 and 4 are seal members.) Therefore, the structural members 1a to 1c are required for the stroke of the cylinder liner 1, and as shown in Fig. 1, the structural members 1a to 1c are required for the stroke of the cylinder liner 1. Three components are required when connecting components approximately 1/3 of the length with screws. It goes without saying that the number of constituent members may be two or four or more.
本発明において、シリンダライナ１、即ち構成
部材１ａ〜１ｃの材質としては、通常用いられる
鋳鉄等が挙げられる。 In the present invention, the material of the cylinder liner 1, that is, the structural members 1a to 1c, may be commonly used cast iron or the like.
［作用］
シリンダライナを長さの短い構成部材に分割
し、各構成部材の内周面に耐摩耗材料の層を形成
するので、耐摩耗材料の層の形成は極めて容易に
行なうことができる。また、各構成部材は螺子込
みにより接続するため、極めて強固に安定して接
合される。[Operation] Since the cylinder liner is divided into short structural members and a layer of wear-resistant material is formed on the inner peripheral surface of each structural member, the layer of wear-resistant material can be formed extremely easily. Moreover, since each component is connected by screwing, it is extremely firmly and stably joined.
本発明によれば相当に長いストロークを有する
シリンダライナであつても、摺動面を耐摩耗材料
層とすることができる。 According to the present invention, even in a cylinder liner having a considerably long stroke, the sliding surface can be made of a wear-resistant material layer.
［実施例］ 以下実施例について説明する。[Example] Examples will be described below.
実施例 １
第１図に示す、鋳鉄製構成部材１ａ〜１ｃ（い
ずれも内径120mm、主肉厚mm、長さ１ａ＝150mm、
１ｂ＝150mm、１ｃ＝150mm）の内周面に、耐摩耗
材料として酸化クロムをプラズマ溶射した。なお
溶射条件は下記の通りであり、耐摩耗材料層の厚
さは0.5mmとした。Example 1 Cast iron structural members 1a to 1c shown in Fig. 1 (inner diameter 120 mm, main wall thickness mm, length 1a = 150 mm,
1b=150mm, 1c=150mm) chromium oxide was plasma sprayed as a wear-resistant material onto the inner circumferential surfaces of the two. The thermal spraying conditions were as follows, and the thickness of the wear-resistant material layer was 0.5 mm.
溶射条件
熱 源 プラズマ炎
材料供給 粉末を圧縮気体で圧送
供給電流 900A
加 工 溶射後ダイヤモンドと石で研摩
これらを順次、螺子込み接合し、第１図に示す
ようなシリンダライナ（長さ450mm）を製造した。Thermal spraying conditions Heat source Plasma flame Material supply Powder is pumped with compressed gas Supply current 900A Processing After thermal spraying, polishing with diamond and stone These are sequentially joined with screws to form a cylinder liner (length 450mm) as shown in Figure 1. Manufactured.
このシリンダライナをデイーゼル機関に取り付
けて使用したところ、無処理のシリンダライナと
比べて、耐摩耗性が格段に優れ、その寿命は大幅
に延長されたことが認められた。 When this cylinder liner was installed and used in a diesel engine, it was found that the wear resistance was much better than that of an untreated cylinder liner, and its lifespan was significantly extended.
［発明の効果］
以上詳述した通り、本発明のシリンダライナの
製造方法は、内周面に耐摩耗材料層が形成された
短い構成部材を螺子込み接続してシリンダライナ
とするものであつて、ストロークの長いシリンダ
ライナであつても容易に耐摩耗性に優れたものを
製造することができ、シリンダライナの寿命を大
幅に延長することが可能となる。[Effects of the Invention] As described in detail above, the method for manufacturing a cylinder liner of the present invention involves screwing and connecting short structural members each having a wear-resistant material layer formed on the inner circumferential surface to form a cylinder liner. Therefore, even cylinder liners with long strokes can be easily manufactured with excellent wear resistance, and the life of the cylinder liner can be significantly extended.
第１図は本発明により製造されるシリンダライ
ナの断面図である。
１……シリンダライナ、１ａ，１ｂ，１ｃ……
構成部材、２ａ，２ｂ，２ｃ……耐摩耗材料層、
３……シリンダライナ本体。
FIG. 1 is a sectional view of a cylinder liner manufactured according to the present invention. 1... Cylinder liner, 1a, 1b, 1c...
Component members, 2a, 2b, 2c... wear-resistant material layer,
3...Cylinder liner body.
Claims (1)
材料で構成したシリンダライナを製造する方法に
おいて、シリンダライナを軸方向に垂直に分割し
た形状を有し、互いに螺子込みにより接続可能
な、複数のシリンダライナ構成部材の内周面に、
各々、耐摩耗材料の層を形成した後、この構成部
材を螺子込み接続して一体とすることを特徴とす
るシリンダライナの製造方法。1. A method for manufacturing a cylinder liner in which the sliding surface that slides with the piston on the inner circumferential surface is made of wear-resistant material, in which the cylinder liner is divided vertically in the axial direction and can be connected to each other by screwing. , on the inner peripheral surface of the plurality of cylinder liner constituent members,
A method of manufacturing a cylinder liner, characterized in that after each layer of wear-resistant material is formed, the constituent members are screwed together and integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27443685A JPS62135644A (en) | 1985-12-06 | 1985-12-06 | Manufacture of cylinder liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27443685A JPS62135644A (en) | 1985-12-06 | 1985-12-06 | Manufacture of cylinder liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62135644A JPS62135644A (en) | 1987-06-18 |
| JPH0226055B2 true JPH0226055B2 (en) | 1990-06-07 |
Family
ID=17541651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27443685A Granted JPS62135644A (en) | 1985-12-06 | 1985-12-06 | Manufacture of cylinder liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62135644A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011102208A1 (en) * | 2011-05-21 | 2012-11-22 | Mahle International Gmbh | Cylinder liner and method for its production |
| CN107598485A (en) * | 2017-07-25 | 2018-01-19 | 中原内配集团安徽有限责任公司 | A kind of manufacture craft of screw thread process type cylinder sleeve |
-
1985
- 1985-12-06 JP JP27443685A patent/JPS62135644A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62135644A (en) | 1987-06-18 |
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