JPH09314342A - Cylinder liner forming method by cladding by welding - Google Patents
Cylinder liner forming method by cladding by weldingInfo
- Publication number
- JPH09314342A JPH09314342A JP12992296A JP12992296A JPH09314342A JP H09314342 A JPH09314342 A JP H09314342A JP 12992296 A JP12992296 A JP 12992296A JP 12992296 A JP12992296 A JP 12992296A JP H09314342 A JPH09314342 A JP H09314342A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- cylinder liner
- forming
- cladding
- overlay welding
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005253 cladding Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims abstract description 33
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 9
- 229910008071 Si-Ni Inorganic materials 0.000 claims abstract description 3
- 229910006300 Si—Ni Inorganic materials 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 18
- 238000000137 annealing Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
- 229910001567 cementite Inorganic materials 0.000 abstract description 5
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000010583 slow cooling Methods 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract 2
- 230000008719 thickening Effects 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 15
- 239000010439 graphite Substances 0.000 description 7
- 229910002804 graphite Inorganic materials 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910001562 pearlite Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910007991 Si-N Inorganic materials 0.000 description 1
- 229910006294 Si—N Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ディーゼルエンジ
ン等に適用される肉盛溶接によるシリンダライナの形成
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a cylinder liner by overlay welding applied to a diesel engine or the like.
【０００２】[0002]
【従来の技術】従来のディーゼルエンジンのシリンダラ
イナについて、図３により説明する。図３に示す従来の
シリンダライナ３１は、普通鋳鉄（ターカロイ鋳鉄）の
一体鋳造により形成されたものであった。この材料は、
リンＰ１％を含有させた黒鉛３３＋パーライト組織３４
に耐摩耗炭化物（Ｆｅ，Ｐ）3 Ｃ３２を析出させて摺動
性を向上させたものである。2. Description of the Related Art A conventional cylinder liner for a diesel engine will be described with reference to FIG. The conventional cylinder liner 31 shown in FIG. 3 was formed by integral casting of ordinary cast iron (Turcaloy cast iron). This material is
Graphite 33 containing 1% of phosphorus P + pearlite structure 34
A wear-resistant carbide (Fe, P) 3 C32 is deposited on the surface of the aluminum alloy to improve slidability.
【０００３】[0003]
【発明が解決しようとする課題】従来のシリンダライナ
においては、その材料が鋳鉄（Ｆｃ３０相当）であるこ
とから、ライナの大型化に伴って厚肉化したとき、ライ
ナ材料の実体強度が低くなる傾向があり、安全率を見込
む必要があるため、さらに、厚肉化をよぎなくされてい
た。In the conventional cylinder liner, since the material thereof is cast iron (equivalent to Fc30), the substantial strength of the liner material decreases when the liner becomes thicker as the liner becomes larger. Since there is a tendency and it is necessary to anticipate a safety factor, the increase in wall thickness was further restricted.
【０００４】また、大型厚肉ライナの場合、高品質を維
持しようとすると、鋳造そのものの技術も、限界肉厚が
あるためにむずかしい技術となる傾向があった。本発明
は上記の課題を解決しようとするものである。Further, in the case of a large-sized thick liner, in order to maintain high quality, the technique of casting itself tends to be difficult because of its limit thickness. The present invention seeks to solve the above problems.
【０００５】[0005]
【課題を解決するための手段】請求項１に記載の発明に
係る肉盛溶接によるシリンダライナの形成方法において
は、粉体プラズマ肉盛溶接によりその内面に摺動部を形
成する高強度のパイプ材を予熱して４００℃以上の温度
とした後、高Ｃ−高Ｓｉ−Ｎｉ系鋳鉄に炭化物形成元素
を添加して生成した粉体材料を用い、４００〜５００Ａ
の溶接電流を出力する粉体プラズマ肉盛溶接装置により
上記パイプ材の内面全面に１００〜２００mm／分の溶接
速度で１層の所定の厚みの肉盛溶接を施工し、次に、肉
盛溶接されたパイプ材の徐冷処理を行い、更に、６００
〜６５０℃の温度で応力除去焼鈍処理を行った後、仕上
げ加工を施工してシリンダライナを形成することを特徴
としている。In the method for forming a cylinder liner by overlay welding according to the invention described in claim 1, a high-strength pipe for forming a sliding portion on its inner surface by powder plasma overlay welding. After preheating the material to a temperature of 400 ° C. or higher, using a powder material produced by adding a carbide forming element to high C-high Si-Ni cast iron, 400 to 500 A
With the powder plasma overlay welding device that outputs the welding current of 1, the overlay welding of one layer with a predetermined thickness is performed on the entire inner surface of the pipe material at a welding speed of 100 to 200 mm / min, and then the overlay welding. The pipe material that has been subjected to gradual cooling is further processed to 600
It is characterized in that after performing stress relief annealing treatment at a temperature of ˜650 ° C., finish processing is applied to form a cylinder liner.
【０００６】本発明においては、高炭素成分含有の鋳鉄
を粉体材料とする粉体プラズマ肉盛溶接により摺動部を
形成するため、溶込み部の少ない低希釈率化が可能とな
り、エンジンの大型化に伴うシリンダライナの肉厚増加
を抑制することが可能となる。In the present invention, the sliding portion is formed by powder plasma overlay welding using cast iron having a high carbon content as the powder material, so that the penetration portion can be reduced and the dilution ratio can be reduced. It is possible to suppress an increase in the wall thickness of the cylinder liner due to the increase in size.
【０００７】また、上記肉盛溶接により形成された摺動
部は、耐焼付き性に優れたグラファイト組織を多量に晶
出し、耐摩耗性にすぐれたセメンタイト炭化物を含有
し、残部が黒鉛の崩壊性を助長させるパーライト組織に
より形成されるため、摺動部が耐焼付き性、耐摩耗性に
優れたシリンダライナとすることができる。The sliding portion formed by the overlay welding contains a large amount of a graphite structure excellent in seizure resistance and contains cementite carbide having excellent wear resistance, and the balance is a collapsible graphite. Since it is formed of a pearlite structure that promotes the above, the sliding portion can be a cylinder liner excellent in seizure resistance and wear resistance.
【０００８】更に、４００〜５００Ａという高電流、大
入熱の肉盛溶接を１００〜２００mm／分の溶接速度で施
工し、１層の重ね溶接で所定の高さの肉盛溶接ビードを
形成し、また、この溶接は自動化が容易なため、生産性
の向上が可能となり、大幅なコスト低減が可能となる。Further, build-up welding with a high current of 400 to 500 A and large heat input is applied at a welding speed of 100 to 200 mm / min, and a build-up welding bead of a predetermined height is formed by lap welding of one layer. Also, since this welding is easy to automate, it is possible to improve the productivity and significantly reduce the cost.
【０００９】なお、上記肉盛溶接前には、パイプ材を予
熱して４００℃以上の温度とし、肉盛溶接後には、６０
０〜６５０℃の温度で応力除去焼鈍処理（以下ＳＲ処理
とする）を行うため、肉盛溶接による割れの発生を防止
することが可能となる。Before the overlay welding, the pipe material is preheated to a temperature of 400 ° C. or higher, and after the overlay welding, 60
Since the stress relief annealing treatment (hereinafter referred to as SR treatment) is performed at a temperature of 0 to 650 ° C., it is possible to prevent the occurrence of cracks due to overlay welding.
【００１０】[0010]
【発明の実施の形態】本発明の実施の一形態に係るディ
ーゼルエンジンの肉盛溶接によるシリンダライナの形成
方法について、図１及び図２により説明する。BEST MODE FOR CARRYING OUT THE INVENTION A method for forming a cylinder liner by overlay welding of a diesel engine according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
【００１１】図１及び図２に示す本実施形態に係るシリ
ンダライナの形成方法においては、まず、高強度（δB
＝６０Kg/mm2）の鋳鋼（軟鋼、炭素鋼）又は鍛鋼からな
るパイプ材３をターニングローラ２上に搭載し、その一
端をポジョナ１に結合した後、ターニングローラ２によ
り上記パイプ材３を所定の速度で回転させながら電気炉
又はガスバーナにより予熱し、４００℃以上の温度とし
た。In the method of forming a cylinder liner according to this embodiment shown in FIGS. 1 and 2, first, high strength (δ B
= 60 Kg / mm 2 ) a pipe material 3 made of cast steel (mild steel, carbon steel) or forged steel is mounted on the turning roller 2, one end of which is connected to the positioner 1, and then the turning roller 2 is used to predetermined the pipe material 3 While being rotated at a speed of 1, the temperature was 400 ° C or higher by preheating with an electric furnace or a gas burner.
【００１２】次に、この状態でパイプ材３の他端より先
端に内面トーチ４ａが接続された水冷長尺トーチ４を挿
入し、高電流粉体プラズマ肉盛溶接装置により内面トー
チ４ａの先端にプラズマアーク６を生成した。Next, in this state, a water-cooled long torch 4 having an inner surface torch 4a connected to the tip from the other end of the pipe material 3 is inserted, and the inner surface torch 4a is attached to the tip by a high-current powder plasma overlay welding device. Plasma arc 6 was generated.
【００１３】次に、上記水冷長尺トーチ４内へ肉盛粉体
供給装置７により粉体材料を送り込み、内面トーチ４ａ
の先端より排出された粉体材料を上記プラズマアーク６
内で溶融させ、パイプ材３の内面に重なり部分を有する
１層のラセン形状で高さが６〜８mmの肉盛溶接ビード５
を形成した。Next, the powder material is fed into the water-cooled long torch 4 by the build-up powder supply device 7, and the inner surface torch 4a is fed.
The powder material discharged from the tip of the plasma arc 6
One layer of spiral welded weld bead 5 having a height of 6 to 8 mm which is melted inside and has an overlapping portion on the inner surface of the pipe material 3.
Was formed.
【００１４】上記肉盛溶接を行った後は、徐冷処理を行
い、更に、ＳＲ処理を６００〜６５０℃の温度で行った
後、仕上げ加工を行い、肉盛溶接によるシリンダライナ
の製作を完了した。After the above-mentioned build-up welding, gradual cooling treatment is carried out, SR treatment is further carried out at a temperature of 600 to 650 ° C., and then finish processing is carried out to complete the production of the cylinder liner by the build-up welding. did.
【００１５】上記肉盛粉体送給装置７より供給される粉
体材料としては、黒鉛の生成が可能な高Ｃ−高Ｓｉ−Ｎ
ｉ系鋳鉄に炭化物形成元素（Ｃｒ又はＰ）が添加され、
ボールミーリング処理されたものを用いた。As the powder material supplied from the build-up powder feeder 7, high C-high Si-N capable of producing graphite.
Carbide-forming element (Cr or P) is added to i-type cast iron,
A ball milled product was used.
【００１６】上記肉盛溶接に際しては、図２（ａ）に示
すように内面トーチ４ａをパイプ材３の長手方向に所定
のオシレート幅（２０〜３０mm以上）でオシレートさ
せ、広幅のビードを形成した。また、内面トーチ４ａ
は、図１（ｂ）に示すようにパイプ材３の回転方向に対
して前方へ約１５〜３０°傾けて配置し、湯流れが防止
できるものとした。In the overlay welding, as shown in FIG. 2 (a), the inner surface torch 4a is oscillated in the longitudinal direction of the pipe material 3 with a predetermined oscillating width (20 to 30 mm or more) to form a wide bead. . Also, the inner torch 4a
As shown in FIG. 1 (b), the pipe material 3 is arranged to be inclined forward by about 15 to 30 ° with respect to the rotation direction of the pipe material 3 to prevent the flow of hot water.
【００１７】上記肉盛溶接における溶接条件は、以下の
とおりであった。即ち、Ａｒシールガス送給量＝１５リ
ッター／分、粉末送給量≧１０〜２０Kg/H、予熱パス間
の温度≧４００℃、溶接速度≧１００〜２００mm／分、
溶接電流≧４００〜５００Ａ、ワークとトーチ間の高さ
＝３０mm、オシレート速度＝４０mm／分、オシレート幅
≧２０〜３０mm、ラップ率＝３０〜５０％であった。The welding conditions in the above overlay welding were as follows. That is, Ar seal gas feed rate = 15 liters / minute, powder feed rate ≧ 10 to 20 kg / H, temperature between preheating passes ≧ 400 ° C., welding speed ≧ 100 to 200 mm / minute,
Welding current ≧ 400 to 500 A, height between work and torch = 30 mm, oscillating speed = 40 mm / min, oscillating width ≧ 20 to 30 mm, and lapping rate = 30 to 50%.
【００１８】本実施形態において、肉盛溶接により形成
された肉盛溶接ビード５の断面のミクロ組織は図２
（ｂ）に示すものであり、摺動性（耐焼付き性）にとっ
て有用なグラファイト組織（片状初晶黒鉛２４と共晶黒
鉛２５）を多量に晶出し（面積率２０％以上）、耐摩耗
性のために有効なセメンタイト炭化物（（Ｆｅ，Ｃｒ）
3Ｃ又は（Ｆｅ，Ｐ）3 Ｃ）２７を５％程度有し、のこ
りを黒鉛の崩壊性を助長させるために有効なパーライト
組織とするものであった。そのため、その摺動部が摺動
性、耐摩耗性に優れたシリンダライナを実現することが
できた。In this embodiment, the microstructure of the cross section of the overlay welding bead 5 formed by overlay welding is shown in FIG.
As shown in (b), a large amount of graphite structure (flake primary crystal 24 and eutectic graphite 25) useful for slidability (seizure resistance) is crystallized (area ratio 20% or more), and wear resistance Cementite carbide ((Fe, Cr))
It had about 5% of 3 C or (Fe, P) 3 C) 27, and had a pearlite structure effective for promoting the disintegration of graphite. Therefore, it was possible to realize a cylinder liner whose sliding portion had excellent slidability and wear resistance.
【００１９】また、溶接電流４００〜５００Ａ以上、溶
接速度１００〜２００mm／分以上という溶接条件で肉盛
溶接を行うため、通常の１kg/Hに対して約１０〜２０倍
と溶着率が高く、生産性の高いシリンダライナを実現す
ることができた。Further, since overlay welding is performed under welding conditions of a welding current of 400 to 500 A or more and a welding speed of 100 to 200 mm / min or more, the welding rate is as high as about 10 to 20 times that of a normal 1 kg / H, We were able to realize a highly productive cylinder liner.
【００２０】更に、粉体材料中に添加される炭素量を増
量して５〜６％としたため、高電流、大入熱による肉盛
溶接の施工にもかゝわらず、次式で示す希釈率を１５％
とすることができ、エンジンの大型化に伴うシリンダラ
イナの肉厚増加を抑制することができた。Further, since the amount of carbon added to the powder material is increased to 5 to 6%, the dilution shown by the following formula is applied despite the construction of the overlay welding by high current and large heat input. Rate 15%
It was possible to suppress the increase in the wall thickness of the cylinder liner due to the increase in size of the engine.
【００２１】 希釈率＝Ｂの面積×１００／（Ａの面積＋Ｂの面積） こゝで、Ａは、図２（ａ）に示す余熱部溶着断面であ
り、Ｂは、図２（ａ）に示す溶込み部溶着断面である。Dilution ratio = area of B × 100 / (area of A + area of B) Here, A is the cross-section of the residual heat portion welding shown in FIG. 2 (a), and B is in FIG. 2 (a). It is a welding part welding cross section shown.
【００２２】なお、肉盛溶接前に予熱を行い、パイプ材
３の温度を４００℃以上としているが、これは溶接割れ
（ビード横割れ）を防止するためであり、この予熱によ
り、肉盛溶接時における溶接割れを防止することができ
た。The temperature of the pipe material 3 is set to 400 ° C. or higher by preheating before the overlay welding. This is to prevent weld cracks (bead lateral cracks). It was possible to prevent welding cracks at the time.
【００２３】また、肉盛溶接により形成される肉盛溶接
ビード５の高さを６〜８mm以上としているが、これは、
シリンダライナの摺動部の厚みとして３〜４mm以上が必
要であり、仕上げ加工代として２mm程度を必要とするた
めである。Further, the height of the overlay welding bead 5 formed by overlay welding is set to 6 to 8 mm or more.
This is because the thickness of the sliding portion of the cylinder liner needs to be 3 to 4 mm or more, and the finishing machining allowance needs to be about 2 mm.
【００２４】溶接条件の１つである溶接電流について
は、４００〜５００Ａ以上としているが、これは、溶接
電流と溶接ビード高さとの間に図２（ｃ）に示す関係が
あり、６〜８mm以上のビード高さを得るためには４００
〜５００Ａの溶接電流を必要とするためである。The welding current, which is one of the welding conditions, is set to 400 to 500 A or more. This has a relationship between the welding current and the weld bead height as shown in FIG. 2 (c), which is 6 to 8 mm. 400 to get above bead height
This is because a welding current of ~ 500A is required.
【００２５】また、溶接速度については、１００〜２０
０mm／分以上としているが、これは、オシレート幅Ｗを
２０mm、ラップ代Ｄを５０％とし、溶接電流を４００Ａ
及び５００Ａとした場合、溶接速度と溶接ビード高さと
の間には図２（ｄ）の関係があるためである。Regarding the welding speed, 100 to 20
Although it is set to 0 mm / min or more, it has an oscillating width W of 20 mm, a lapping margin D of 50%, and a welding current of 400 A.
And 500 A, the welding speed and the weld bead height have the relationship shown in FIG. 2 (d).
【００２６】更に、６００〜６５０℃の温度によるＳＲ
処理を行っているのは、これにより母材の熱影響部の硬
さをビッカース硬さＨｖで２００〜３００に下げること
ができ、溶接割れの発生の防止を図ることができるため
である。Further, SR at a temperature of 600 to 650 ° C.
The reason why the treatment is performed is that the hardness of the heat-affected zone of the base material can be reduced to 200 to 300 by the Vickers hardness Hv and the occurrence of welding cracks can be prevented.
【００２７】なお、本実施形態においては、肉盛溶接に
よりパイプ材の内面にラセン状の肉盛溶接ビードを形成
しているが、パイプ材の長手方向の直線状のビードを形
成したものであってもよい。In the present embodiment, the spiral build-up weld bead is formed on the inner surface of the pipe material by the build-up welding, but the linear bead in the longitudinal direction of the pipe material is formed. May be.
【００２８】[0028]
【発明の効果】本発明の肉盛溶接によるシリンダライナ
の形成方法においては、その内面に肉盛溶接による摺動
部が形成されるパイプ材を予熱した後、高Ｃ−高Ｓｉ−
Ｎｉ系鋳鉄に炭化物形成元素を添加して生成した粉体材
料を用い、４００〜５００Ａの溶接電流、１００〜２０
０mm／分の溶接速度で上記パイプ材の内面に粉体プラズ
マ肉盛溶接を施工し、その後、徐冷処理、応力除去焼鈍
処理、仕上加工を行うものとしたことによって、溶込み
部の少ない摺動部の形成が可能なため、エンジンの大型
化に伴うシリンダライナの肉厚増加を抑制することがで
き、グラファイト組織やセメンタイト炭化物等が形成さ
れるため、摺動部の耐焼付き性、耐摩耗性が優れ、高電
流、大入熱の肉盛溶接が可能なため、生産性の高い形成
方法を実現する。According to the method for forming a cylinder liner by overlay welding of the present invention, after a pipe material having a sliding portion formed by overlay welding on its inner surface is preheated, high C-high Si-
Using a powder material produced by adding a carbide forming element to Ni-based cast iron, a welding current of 400 to 500 A, 100 to 20
By applying powder plasma overlay welding to the inner surface of the pipe material at a welding speed of 0 mm / min, and then performing slow cooling treatment, stress relieving annealing treatment, and finish processing, sliding with less penetration is achieved. Since the moving part can be formed, it is possible to suppress the increase in the wall thickness of the cylinder liner due to the increase in size of the engine, and the graphite structure and cementite carbide are formed, so that the sliding part has seizure resistance and wear resistance. Since it has excellent properties and can perform overlay welding with high current and high heat input, it realizes a forming method with high productivity.
【図１】本発明の実施の一形態に係るシリンダライナの
形成方法に適用される装置の説明図で、（ａ）は側面
図、（ｂ）は（ａ）のＡ−Ａ矢視図である。FIG. 1 is an explanatory diagram of an apparatus applied to a method for forming a cylinder liner according to an embodiment of the present invention, in which (a) is a side view and (b) is an AA arrow view of (a). is there.
【図２】上記一実施形態に係る作用説明図で、（ａ）は
肉盛溶接ビードの断面図、（ｂ）は（ａ）のＢ部の拡大
図、（ｃ）は溶接電流と溶接ビード高さの関係図、
（ｄ）は溶接速度と溶接ビード高さの関係図である。2A and 2B are explanatory views of the operation according to the above embodiment, where FIG. 2A is a cross-sectional view of a build-up welding bead, FIG. 2B is an enlarged view of portion B of FIG. 2A, and FIG. 2C is a welding current and welding bead. Height relationship diagram,
(D) is a relationship diagram of welding speed and welding bead height.
【図３】従来のシリンダライナの説明図で、（ａ）は斜
視図、（ｂ）は（ａ）のＣ部の拡大図である。3A and 3B are explanatory views of a conventional cylinder liner, FIG. 3A is a perspective view, and FIG. 3B is an enlarged view of a C portion of FIG. 3A.
１ ポジショナ ２ ターニングローラ ３ パイプ材 ４ 水冷長尺トーチ ４ａ 内面トーチ ５ 肉盛溶接ビード ６ プラズマアーク ２４ 片状初晶黒鉛 ２５ 共晶黒鉛 ２６ パーライト組織 ２７ セメンタイト炭化物 1 Positioner 2 Turning roller 3 Pipe material 4 Water-cooled long torch 4a Inner surface torch 5 Overlay welding bead 6 Plasma arc 24 Flake primary graphite 25 Eutectic graphite 26 Perlite structure 27 Cementite carbide
フロントページの続き (72)発明者 岡部 雅彦 神戸市兵庫区和田崎町一丁目１番１号 三 菱重工業株式会社神戸造船所内 (72)発明者 松井 昭彦 長崎市深堀町五丁目717番１号 三菱重工 業株式会社長崎研究所内Front Page Continuation (72) Inventor Masahiko Okabe 1-1-1, Wadasaki-cho, Hyogo-ku, Kobe Sanbishi Heavy Industries Ltd. Kobe Shipyard (72) Inventor Akihiko Matsui 5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industry Co., Ltd. Nagasaki Research Institute
Claims (1)
摺動部を形成する高強度のパイプ材を予熱して４００℃
以上の温度とした後、高Ｃ−高Ｓｉ−Ｎｉ系鋳鉄に炭化
物形成元素を添加して生成した粉体材料を用い、４００
〜５００Ａの溶接電流を出力する粉体プラズマ肉盛溶接
装置により上記パイプ材の内面全面に１００〜２００mm
／分の溶接速度で１層の所定の厚みの肉盛溶接を施工
し、次に、肉盛溶接されたパイプ材の徐冷処理を行い、
更に、６００〜６５０℃の温度で応力除去焼鈍処理を行
った後、仕上げ加工を施工してシリンダライナを形成す
ることを特徴とする肉盛溶接によるシリンダライナの形
成方法。1. A high-strength pipe material having a sliding portion formed on its inner surface by powder plasma overlay welding is preheated to 400.degree.
After the temperature is set to the above temperature, a powder material produced by adding a carbide forming element to high C-high Si-Ni cast iron is used, and 400
100 to 200 mm on the entire inner surface of the pipe material by a powder plasma overlay welding device that outputs a welding current of ~ 500 A
One layer of overlay welding with a predetermined thickness is performed at a welding speed of 1 / min, and then the overlay welded pipe material is gradually cooled,
Further, a method of forming a cylinder liner by overlay welding, which comprises performing stress relief annealing treatment at a temperature of 600 to 650 ° C. and then performing finish processing to form a cylinder liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12992296A JPH09314342A (en) | 1996-05-24 | 1996-05-24 | Cylinder liner forming method by cladding by welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12992296A JPH09314342A (en) | 1996-05-24 | 1996-05-24 | Cylinder liner forming method by cladding by welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09314342A true JPH09314342A (en) | 1997-12-09 |
Family
ID=15021730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12992296A Withdrawn JPH09314342A (en) | 1996-05-24 | 1996-05-24 | Cylinder liner forming method by cladding by welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09314342A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637108B2 (en) | 2001-03-05 | 2003-10-28 | Suzuki Motor Corporation | Method for manufacturing cylinder block for internal combustion engine |
| CN105710519A (en) * | 2014-12-01 | 2016-06-29 | 陆峰 | Pulse microbeam plasma surfacing method for inner wall of steel pipe |
| CN110587171A (en) * | 2019-08-31 | 2019-12-20 | 浙江深澳机械工程有限公司 | Pipe die build-up welding machine |
-
1996
- 1996-05-24 JP JP12992296A patent/JPH09314342A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637108B2 (en) | 2001-03-05 | 2003-10-28 | Suzuki Motor Corporation | Method for manufacturing cylinder block for internal combustion engine |
| DE10209401B4 (en) * | 2001-03-05 | 2006-05-24 | Suzuki Motor Corporation, Hamamatsu | Method for producing a cylinder block for an internal combustion engine |
| CN105710519A (en) * | 2014-12-01 | 2016-06-29 | 陆峰 | Pulse microbeam plasma surfacing method for inner wall of steel pipe |
| CN110587171A (en) * | 2019-08-31 | 2019-12-20 | 浙江深澳机械工程有限公司 | Pipe die build-up welding machine |
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| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
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