JPS5985369A - Arc and gas mixed melt spraying repairing method of metallic object - Google Patents
Arc and gas mixed melt spraying repairing method of metallic objectInfo
- Publication number
- JPS5985369A JPS5985369A JP57196612A JP19661282A JPS5985369A JP S5985369 A JPS5985369 A JP S5985369A JP 57196612 A JP57196612 A JP 57196612A JP 19661282 A JP19661282 A JP 19661282A JP S5985369 A JPS5985369 A JP S5985369A
- Authority
- JP
- Japan
- Prior art keywords
- melt spraying
- arc
- face
- gas
- repair
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は金歯物体のアーク・ガス混合溶射補修方法に係
シ、特にワイヤーロープ用シープのロープ溝部の如き狭
開先の溶射補修方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for repairing a gold tooth object by thermal spraying a mixture of arc and gas, and more particularly to a method for repairing a narrow gap such as a rope groove in a wire rope sheep.
従来ワイヤーロープ用シープのロープ縛が摩耗した場合
は次の如き補修方法が考えられるが、いずれも短所があ
るので補修されず廃却処分にされていた。すなわちアー
ク溶接による肉盛補修は肉盛強度は大であるが、熱のた
めシープのフラッジ部に歪が発生する欠点がある。また
アーク溶射による肉盛補修はスプレーパターンの角［が
４５〜６０度と広いため一般には能率がよい長所を有し
ているが、ロープ用シープ溝部に溶射する場合に溝部を
狙って溶射しても両側フランジ部に付着する。この両側
７ランジ部に付着した被膜は、フランジ部の立上り形状
にもよるが一般に溶射面に対する溶射角度が急であシ最
適角度である直角からはるかに外れているため、この７
ランジ部に付着した溶射被膜は荒れてボイドが多く密着
度、強度が劣る欠点がある。アーク溶射の溶射角度が直
角である溝底部の被膜はガス溶射に比し密着度、強度と
もに一般にすぐれている。一方ガス溶射による肉盛補修
は被膜の粒子が細かくすぐれているが、アーク溶射に比
し１密着度が劣り、スプレーパターンの角度が約１５度
と狭いため能率の悪い欠点があった。Conventionally, when the rope tie of a wire rope sheep is worn out, the following repair methods can be considered, but all of them have disadvantages, so they are not repaired and are discarded. That is, overlay repair by arc welding has a high overlay strength, but has the disadvantage that distortion occurs in the fledge part of the sheep due to heat. In addition, overlay repair by arc spraying generally has the advantage of being efficient because the angle of the spray pattern is as wide as 45 to 60 degrees, but when spraying on a sheep groove for a rope, it is difficult to spray by aiming at the groove. Also adheres to the flanges on both sides. Although it depends on the upright shape of the flanges, the coating attached to the 7 flange portions on both sides is generally steep because the spray angle to the sprayed surface is far away from the right angle, which is the optimum angle.
The sprayed coating attached to the lunge portion is rough and has many voids, resulting in poor adhesion and strength. The coating on the bottom of the groove where the arc spraying angle is perpendicular is generally superior in both adhesion and strength compared to gas spraying. On the other hand, overlay repair by gas spraying has fine particles in the coating, but has the drawbacks of poor efficiency as the degree of adhesion is inferior to that of arc spraying, and the angle of the spray pattern is narrow at about 15 degrees.
本発明の目的は上記従来技術の問題点を解決し密着度と
強度にすぐれ作業効率のよい金属物体のアーク・ガス混
合溶射補修方法を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a method for repairing metal objects by arc/gas mixture thermal spraying, which has excellent adhesion and strength and is highly efficient.
本発明の要旨とするところは次のとおシである。The gist of the present invention is as follows.
すなわち、金属物体被補修面の下側工程と、前記下側面
のブラスト処理工程と、前記プラスト処理面の肉盛工程
と、前記肉盛面の仕上加工工程とを鳴して成る金属物体
の肉盛補修方法において、前記肉盛工程はアーク溶射工
程とガス溶射工程との交互の繰返しから成ることを特徴
とする金属物体のアーク・ガス混合溶射補修方法である
。That is, the metal object is finished by performing a lower process on the surface to be repaired of the metal object, a blasting process on the lower side surface, a build-up process on the blast-treated surface, and a finishing process on the build-up surface. The overlay repair method is characterized in that the overlay process consists of alternating repetition of an arc spraying process and a gas spraying process.
本発明の詳細をワイヤーロープ用シープの場合の溶射補
修方法を示す第１図の模式断面によシ説明する。The details of the present invention will be explained with reference to the schematic cross section of FIG. 1, which shows a thermal spray repair method for a wire rope sheep.
先づワイヤーロープ用シープ母材２の渦部を最終の仕上
加工面４よシ下削面６の半径が大きくなる如く切削する
。これは溶射被膜の残置を強化するためである。また切
削においてフランジ上部８を適当寸法ｔだけ未切削で残
′シ、ワイヤーロープの摩擦による剪断力の逃げと剥離
防止を図る。次に下側面６をブラスト処理して平担とす
る。この下側面６を本発明の特徴とするアーク溶射工程
とガス溶射工程との交互の繰返しによシ肉盛するのであ
る。肉盛の最初ぼアーク溶射工程から始まるが、これは
下盛溶射を兼ねており、母材２との密着を強化する効呆
を有している。次いで＠２図に示す如く、シープ母材２
にアーク溶射層１０とガス溶射層１２を重ねて交互に肉
盛を行うが最後はガス溶射層１２とし肉盛最終面１４を
細かい粒子とする。ガス溶射工程においてはスプレーパ
ターンの角度が１５度程厩と狭いので婢部のみならずフ
ランジ部についても溶射角度を直角に近い角度で溶射す
る。最後に最終工程として肉盛最終面１４を機械加工に
よって仕上加工面４まで切削しシーブ溝部の溶射補修作
業は終了する。First, the spiral portion of the wire rope sheep base material 2 is cut so that the radius of the undercut surface 6 becomes larger than the final finished surface 4. This is to strengthen the retention of the thermally sprayed coating. Further, during cutting, the upper part of the flange 8 is left uncut by an appropriate dimension t to prevent shearing force from escaping due to friction of the wire rope and to prevent peeling. Next, the lower surface 6 is blasted to make it flat. This lower surface 6 is overlaid by alternately repeating the arc spraying process and the gas spraying process, which are the characteristics of the present invention. The first step in overlaying begins with an arc spraying process, which also serves as underlaying thermal spraying and has the effect of strengthening the adhesion to the base metal 2. Next, as shown in Figure @2, the sheep base material 2
Then, the arc sprayed layer 10 and the gas sprayed layer 12 are stacked and deposited alternately, and finally the gas sprayed layer 12 is applied, and the final deposited surface 14 is made of fine particles. In the gas spraying process, the angle of the spray pattern is as narrow as about 15 degrees, so the spraying angle is close to a right angle not only on the base but also on the flange. Finally, as a final step, the final overlay surface 14 is cut to the finished surface 4 by machining, and the thermal spray repair work of the sheave groove is completed.
本発明法は、アーク溶射工程において作業能率をあげ、
ガス溶射工程において溶射粒子が細かくスプレーパター
ンが狭いのですべての溶射面に対して直角に近い角度で
溶射することによってアーク溶射工程中に発生した両側
フランジ部溶射被膜のボイドを細い粒子が埋めその欠陥
を解消し、アーク溶射とガス溶射とが相互に短所を補い
長所を生かすことができる。The method of the present invention increases work efficiency in the arc spraying process,
In the gas spraying process, the spray particles are fine and the spray pattern is narrow, so by spraying at an angle close to perpendicular to all sprayed surfaces, the fine particles fill in the voids in the sprayed coating on both flanges that occur during the arc spraying process. Arc thermal spraying and gas thermal spraying can compensate for each other's weaknesses and take advantage of their strengths.
なお本発明においてはアーク溶射工程とガス溶射工程の
溶射材料は同一でもよいが、例えばアーク溶射において
ステンレス＋１４８ Ｕ Ｓ ４２０ 、Ｊｊ 、ｘ。In the present invention, the spraying material in the arc spraying step and the gas spraying step may be the same, but for example, in the arc spraying, stainless steel + 148 US 420, Jj, x.
溶射において炭素鋼を使用することもできる。Carbon steel can also be used in thermal spraying.
実施例
低マンガン鋼鋳鋼品ＳＣＭｎ２Ｂのワイヤーロープ用シ
ープに本発明法によシスチンレス鋼５Ｕ８４２０を溶射
して補修した。すなわちシープの被補修面に約２゛鋼の
下削りを行い、ブラスト処理後、アーク溶射とガス溶射
とを交互に約４０回、溶射温度約１７０℃で肉盛をした
。溶射１回の膜厚は約０．０５＋ｍであるので合計で約
２ｍ厚の溶射を行い、次に約０．５ ｗｎの仕上切削加
工を行い、結局１．５同厚の溶射補修被膜を得た。本実
施例においては作業能率がよく、シープの熱歪は発生せ
ず、溶射補修被膜の密着度、強度はともにすぐれていた
。Example A low manganese steel casting SCMn2B wire rope sheep was repaired by thermal spraying cystineless steel 5U8420 according to the method of the present invention. That is, the surface of the sheep to be repaired was ground by about 2 degrees of steel, and after blasting, overlay was applied by alternating arc spraying and gas spraying about 40 times at a spraying temperature of about 170°C. The coating thickness for one thermal spraying process is approximately 0.05+m, so a total thickness of approximately 2m of thermal spraying was performed, and then finishing cutting of approximately 0.5wn was performed, resulting in a thermal sprayed repair coating with the same thickness of 1.5m. Ta. In this example, the work efficiency was good, thermal distortion of the sheep did not occur, and the adhesion and strength of the thermally sprayed repair coating were both excellent.
本発明は上記実施例からも明らかな如く、金属物体の肉
盛補修において、アーク溶射工程とガス溶射工程とを交
互に繰返して肉盛スるくとによって、作業効率がよくす
ぐれた密着度と強度を有する溶射被膜を得ることができ
た。As is clear from the above embodiments, the present invention achieves high working efficiency and excellent adhesion by repeating the arc spraying process and the gas spraying process alternately to build up the metal object. A thermally sprayed coating with strength could be obtained.
なお本発明法を主としてワイヤーロープ用シーブの補修
について説明してきたが、本発明はシープに限らずシー
ブ溝の如き狭開先で密着性と強度のすぐれた溶射被膜を
必要とする肉盛補修に広く適用することができる。Although the method of the present invention has been mainly described for repairing wire rope sheaves, the present invention is applicable not only to sheaves but also to overlay repairs that require a thermally sprayed coating with excellent adhesion and strength in narrow gaps such as sheave grooves. Can be widely applied.
第１図は溶射補修方法を示すワイヤーロープ用シープの
断面績、第２図は本発明の溶射方法を示す溶射層の断面
図である。
２・・・シープ母材 ４・・・仕上加工面６・・・下
側面 １０・・・アーク溶射層１２・・・ガス溶射
層
代理人 中 路 武 雄FIG. 1 is a cross-sectional view of a wire rope sheep showing a thermal spray repair method, and FIG. 2 is a cross-sectional view of a thermal spray layer showing a thermal spraying method of the present invention. 2... Sheep base material 4... Finished surface 6... Bottom surface 10... Arc sprayed layer 12... Gas sprayed layer agent Takeo Nakaji
Claims (1)
のブラスト処理工程と、前記プラスト処理面の肉盛工程
と、前記肉盛面の仕上加工工程とを有して成る金属物体
の肉盛補修方法において、前記肉盛工程はアーク溶射工
程とガス溶射工程との交互の繰返しから成ることを特徴
とする金属物体のアーク・ガス混合溶射補修方法っ(1) A metal object having a laxative process on the repaired surface of the metal object, a blasting process on the laxative surface, a build-up process on the blast-treated surface, and a finishing process on the build-up surface. In the overlay repair method, the overlay process consists of alternating repetition of an arc spraying process and a gas spraying process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57196612A JPS6053110B2 (en) | 1982-11-09 | 1982-11-09 | Arc/gas mixture thermal spray repair method for metal objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57196612A JPS6053110B2 (en) | 1982-11-09 | 1982-11-09 | Arc/gas mixture thermal spray repair method for metal objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5985369A true JPS5985369A (en) | 1984-05-17 |
| JPS6053110B2 JPS6053110B2 (en) | 1985-11-22 |
Family
ID=16360649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57196612A Expired JPS6053110B2 (en) | 1982-11-09 | 1982-11-09 | Arc/gas mixture thermal spray repair method for metal objects |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053110B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799523A1 (en) * | 1999-10-08 | 2001-04-13 | Framatome Sa | Valve seat in situ repair procedure, especially for nuclear PWR steam circuit outlet valve, comprises use of plasma transfer arc (PTA) build-up weld |
| EP1166937A2 (en) * | 2000-06-23 | 2002-01-02 | MTU Aero Engines GmbH | Reparing method of metallic elements |
| JP2021123781A (en) * | 2020-02-07 | 2021-08-30 | 日鉄めっき鋼管株式会社 | Repair method of weld bead cutting part of electroseamed steel pipe, and manufacturing method of electroseamed steel pipe |
-
1982
- 1982-11-09 JP JP57196612A patent/JPS6053110B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799523A1 (en) * | 1999-10-08 | 2001-04-13 | Framatome Sa | Valve seat in situ repair procedure, especially for nuclear PWR steam circuit outlet valve, comprises use of plasma transfer arc (PTA) build-up weld |
| EP1166937A2 (en) * | 2000-06-23 | 2002-01-02 | MTU Aero Engines GmbH | Reparing method of metallic elements |
| EP1166937A3 (en) * | 2000-06-23 | 2004-08-11 | MTU Aero Engines GmbH | Reparing method of metallic elements |
| JP2021123781A (en) * | 2020-02-07 | 2021-08-30 | 日鉄めっき鋼管株式会社 | Repair method of weld bead cutting part of electroseamed steel pipe, and manufacturing method of electroseamed steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053110B2 (en) | 1985-11-22 |
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