JPS63317657A - Thermal spraying method - Google Patents
Thermal spraying methodInfo
- Publication number
- JPS63317657A JPS63317657A JP15229087A JP15229087A JPS63317657A JP S63317657 A JPS63317657 A JP S63317657A JP 15229087 A JP15229087 A JP 15229087A JP 15229087 A JP15229087 A JP 15229087A JP S63317657 A JPS63317657 A JP S63317657A
- Authority
- JP
- Japan
- Prior art keywords
- metallic substrate
- transformation
- substrate
- heated
- composition
- 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
- 238000000034 method Methods 0.000 title claims description 29
- 238000007751 thermal spraying Methods 0.000 title claims description 15
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 230000009466 transformation Effects 0.000 claims abstract description 27
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000005422 blasting Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 5
- 229910045601 alloy Inorganic materials 0.000 claims 2
- 239000000956 alloy Substances 0.000 claims 2
- 238000005507 spraying Methods 0.000 abstract description 9
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- 239000007921 spray Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は溶射方法に係り、特に金属質基質表面を軟化さ
せ密着性の優れた溶射被膜を形成させる方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal spraying method, and particularly to a method for softening the surface of a metallic substrate and forming a thermally sprayed coating with excellent adhesion.
材料の耐熱性、耐食性、耐融着性及び耐摩耗性を向上さ
せる方法として材料の表面にこれらより優れた材料を溶
射する方法が知られている。特に、摺動する機械部品、
刃物、カッター等は摩耗が問題となり、溶射材料として
は耐摩耗性、耐剥離性のいずれにも優れている必要があ
る。こうした特性を向上させるには、酸化物、窒化物、
ホウ化物。BACKGROUND ART A known method for improving the heat resistance, corrosion resistance, fusion resistance, and abrasion resistance of a material is to thermally spray a material superior to these onto the surface of the material. In particular, sliding mechanical parts,
Abrasion is a problem with blades, cutters, etc., and thermal spray materials must have excellent wear resistance and peeling resistance. To improve these properties, oxides, nitrides,
Boride.
炭化物および珪化物やダイヤモンド等の立方晶構造組成
物を溶射して、被膜を形成させるのが有効である。It is effective to thermally spray a cubic structure composition such as carbide, silicide, or diamond to form a coating.
上記部品に使用されるセラミックス等を含んだ溶射被膜
に必要な性能としては、上記の特性の内特に耐剥離性が
良好であることが重要である。特に、刃物や機械部品に
は高硬度全屈材料が使用されているため、従来より使用
されているプラズマ溶射や酸素−アセチレン等の爆発エ
ネルギーを利用した爆発溶射法（１９７５年の米国特許
第３８８４４１５）そして超音速強化ガス溶射法（１９
８６−４１日本溶射協会編ＪＥＴ ＫＯＴＥ溶射法に
よるＷＣ被膜に関する２、３の考察）等でブラスティン
グを行ったままの基質表面に溶射しても、溶射した被膜
は基質が高硬度であるため、ブラスティングが不充分に
なることや粒子の基質に食い込む度合が小さいこと等に
より、粒子飛行速度が大きいにも拘わらず、母材との密
着力が充分に得られず、耐剥離性に乏しい。Among the properties listed above, it is important that the thermal spray coating containing ceramics and the like used in the above parts has good peeling resistance. In particular, since high-hardness, fully-flexible materials are used for cutlery and mechanical parts, conventionally used plasma spraying and explosive spraying methods that utilize explosive energy such as oxygen-acetylene (1975 U.S. Patent No. 3,884,415) ) and supersonic enhanced gas spraying method (19
86-41 Edited by Japan Thermal Spraying Association JET KOTE (Considerations 2 and 3 on WC coatings by thermal spraying method) etc. Even if the sprayed coating is sprayed onto the surface of the substrate that has been blasted, since the substrate has high hardness, Due to insufficient blasting and a small degree of particle penetration into the substrate, despite the high particle flight speed, sufficient adhesion to the base material cannot be obtained and peeling resistance is poor.
この種の手法としては特公昭５６−５４３９１が提案さ
れているが、溶射被膜を改質し、耐摩耗性を向上させる
手法にとどまり、密着性を向上させる手法に付いては言
及されていない。This type of method has been proposed in Japanese Patent Publication No. 56-54391, but the method is limited to improving the abrasion resistance by modifying the thermally sprayed coating, and there is no mention of a method for improving adhesion.
セラミックス等を高硬度な基質上に溶射した被膜に必要
な性能は、基質との密着力であるが、前記溶射法により
形成される溶射被膜層と基質との間の結合は一部の溶射
被膜に関しては金属学的反応帯域の生成された証拠が見
い出されているが、主に機械的なものである。そのため
部品に形成した溶射被膜は耐剥離性を充分に持つ程の機
械強度が得られないために、部品は使用中あるいは使用
前に剥離してしまう。The performance required for a coating made of ceramics etc. by thermal spraying on a highly hard substrate is adhesion to the substrate, but the bond between the thermal sprayed coating layer formed by the above thermal spraying method and the substrate is Evidence has been found for the production of metallurgical reaction zones, but they are primarily mechanical. As a result, the sprayed coating formed on the component does not have sufficient mechanical strength to provide sufficient peeling resistance, and the component peels off during or before use.
耐摩耗性を向上させた機械部品等を得るため、メッキ、
スパッタリング、イオンブレーティング等の方法が溶射
以外にもあるが、これらの方法は。In order to obtain mechanical parts with improved wear resistance, plating,
There are other methods besides thermal spraying, such as sputtering and ion blasting.
全である種の制限を受ける。すなねち、イオン、ブレー
ティングおよびスパッタリングは非常に高価であるのに
加え、充分な厚さの被覆層を得ることができない。また
、メッキは有効に使用され得るが、耐摩耗性、被覆層の
厚さ弁子充分である。All are subject to certain restrictions. In other words, ion, brating and sputtering are very expensive and do not provide a coating layer of sufficient thickness. In addition, plating can be used effectively, but the wear resistance and thickness of the coating layer are insufficient.
［発明が解決しようとする問題点］
上記従来技術は高硬度な基質上に耐摩耗性を付与するセ
ラミックス等の溶射被膜を形成する上で、基質との密着
性が劣る点で問題があった。[Problems to be Solved by the Invention] The above conventional technology has a problem in that the adhesion to the substrate is poor when forming a thermally sprayed coating of ceramics or the like that imparts wear resistance on a highly hard substrate. .
本発明の目的は、高硬度な基質上に密着性の良好な溶射
被膜を形成する方法を提供することにある。An object of the present invention is to provide a method for forming a thermally sprayed coating with good adhesion on a highly hard substrate.
上記問題点は、マルテンサイト組織を有する金属質基質
の表面を少くとも該金属質基質の組成によって決まるＡ
、変態点、Ａｃｍ変態点のいずれかの変態点に加熱後冷
却しマルテンサイト変態開始点以上に保持した状態で粉
末状物質を溶射することにより、またはマルテンサイト
組織を有する金属質基質の表面を少くとも該金属質基質
の組成によって決まるＡ、変態点、Ａｃｍ変態点のいず
れかの変態点に加熱後冷却しマルテンサイト変態開始点
以上に保持した状態で、ブラスティングを行いその後粉
末状物質を溶射することにより解決される。The above problem is that the surface of a metallic substrate having a martensitic structure is at least A
The surface of a metallic substrate having a martensitic structure is coated by thermal spraying a powder material while heating to either the transformation point or the Acm transformation point, and then cooling and maintaining the temperature above the martensitic transformation start point. After heating to at least one of the transformation points A, transformation point, and Acm transformation point determined by the composition of the metallic substrate, the material is cooled and maintained at the martensitic transformation starting point, and then blasting is performed, and then the powdered material is Solved by thermal spraying.
マルテンサイト組織を有する金、＠質基質表面を少くと
も該金属質基質の組成によって決まるＡ３変態点、Ａｃ
ｍ変態点のいずれかの変態点に加熱することにより前記
金属質基質中の高硬点であるマルテンサイト組織を一旦
オーステナイト組織に変態させｈ後、再びマルテンサイ
ト組織が析出しない状態であるマルテンサイト変態開始
点以上に保持した状態で直接またはブラスティングを行
った後に粉末溶射を行うと該粉末が前記金属質基質に食
い込む。The surface of a gold, @-based substrate having a martensitic structure is at least A3 transformation point determined by the composition of the metallic substrate, Ac
Martensite, which is a state in which the martensite structure, which is a high hard point in the metallic matrix, is once transformed into an austenite structure by heating to one of the transformation points m, and after h, the martensite structure does not precipitate again. When powder spraying is performed directly or after blasting while the temperature is maintained above the transformation start point, the powder bites into the metallic substrate.
以下に本発明の実施例を挙げ、第１図〜第３図を参照し
ながら更に具体的に説明する。Embodiments of the present invention will be described below in more detail with reference to FIGS. 1 to 3.
第１図は本発明による、高密着性耐摩耗被膜を基質表面
に形成させる方法の一例を示す説明図である。また第２
図は第１図のＡ部を拡大した図である。材料１の表面を
洗浄した後、レーザビーム、電子ビームまたは高周波加
熱法を用いて基質表面の表層から５〜５０００μｍ（金
１＠質基質の高硬度特性を残すため、でき得るなら１０
０μｍ以下の領域）を一旦基質のＡ、変態点又はＡｃ＋
ａ変態点以上まで加熱し、表層部２を軟化させ、その後
基質がマルテンサイト変態開始点（Ｍｓ点）以下に冷却
される前に溶射Ｍ３を形成する。FIG. 1 is an explanatory diagram showing an example of a method of forming a highly adhesive wear-resistant coating on a substrate surface according to the present invention. Also the second
The figure is an enlarged view of section A in FIG. 1. After cleaning the surface of material 1, a laser beam, an electron beam, or a high-frequency heating method is used to clean the surface of the substrate from 5 to 5,000 μm (10 μm if possible to preserve the high hardness characteristics of the gold-based substrate).
0 μm or less) once the A, transformation point or Ac+ of the substrate.
The surface layer 2 is softened by heating to the a transformation point or higher, and then the thermal spray M3 is formed before the substrate is cooled to the martensitic transformation start point (Ms point) or lower.
以上のプロセスによって作製した本発明による溶射被膜
と従来法とで基質との密着強度試験を行った結果を第１
表に示す。The results of an adhesion strength test between the thermal sprayed coating of the present invention produced by the above process and the conventional method with the substrate are shown in the first table.
Shown in the table.
基質は高速度工具鋼である５ＫＨ５１で硬度はＨＶ８３
０程度である。また、溶射材料は、タングステン・カー
バイト８８％、コバルト１２％の溶射材料を用いたもの
である。The substrate is high speed tool steel 5KH51 with a hardness of HV83.
It is about 0. The thermal spraying material used was 88% tungsten carbide and 12% cobalt.
本試験では基質表層部を高周波加熱により１２００℃ま
で上げ、基質が約２５０’Ｃまで冷却された時点で密着
性を更に向上させるためブラスティングを行った後爆発
溶射法で溶射したものである。In this test, the surface layer of the substrate was heated to 1200°C by high-frequency heating, and when the substrate had cooled to about 250°C, it was blasted to further improve adhesion and then thermally sprayed using an explosive spraying method.
試験は第３図に示すように約０．３ｗｍの厚さの溶射Ｍ
７を形成させた後、試験治具５を固定し。The test was carried out by spraying M with a thickness of about 0.3wm as shown in Figure 3.
After forming 7, the test jig 5 is fixed.
試験治具６を矢印Ｔ方向に引張り、破断時の荷重（破断
応力）を測定した。The test jig 6 was pulled in the direction of arrow T, and the load at break (break stress) was measured.
第１表に示すごとく、本発明の実施例に基づいて作製し
た被膜は良好な密着性を示していることが分かる。As shown in Table 1, it can be seen that the coatings prepared based on the examples of the present invention exhibit good adhesion.
なお、金属質基質に炭素を含む場合、炭素含有量は０．
４〜６．６７重量％が適当である。これは炭素量が０．
４重量％以上になると熱処理条件を特殊に行なう場合を
除けば、組織的にマルテンサイトが析出しておりまた６
、６７重量％は鉄鋼材料（ｆ）鉄を除く）の場合の最大
値である。Note that when the metallic substrate contains carbon, the carbon content is 0.
4 to 6.67% by weight is suitable. This has a carbon content of 0.
If the concentration exceeds 4% by weight, martensite will precipitate structurally, unless special heat treatment conditions are used.
, 67% by weight is the maximum value for steel materials (f) excluding iron).
また金属質基質の硬度はＨＶ５００以下であれば溶射の
前処理であるブラスト処理で十分表面を荒すことが可能
となるので本発明を適用する必要性が少いがＨＶ５００
以上になると表面をブラスト等で荒すことが困難となる
ため本発明はＨＶ５００以上で特に有効となる。In addition, if the hardness of the metallic substrate is HV500 or less, it is possible to sufficiently roughen the surface by blasting, which is a pretreatment for thermal spraying, so there is little need to apply the present invention.
If it is higher than that, it becomes difficult to roughen the surface by blasting or the like, so the present invention is particularly effective when the HV is 500 or higher.
以上の実施例において示した如く、本発明の方法により
形成した溶射被膜が優れた密着性を示す理由は、基質表
面を軟質化させたことで溶射材料が高速度で衝突した際
に、溶射粒子中に含まれる半溶融状態の高硬度粉末材料
が基質に食い込んで強固な密着性が得られるためである
。As shown in the examples above, the reason why the thermal spray coating formed by the method of the present invention exhibits excellent adhesion is that the substrate surface is softened, so that when the thermal spray material collides with the thermal spray material at high speed, the thermal spray particles This is because the semi-molten high hardness powder material contained therein bites into the substrate and provides strong adhesion.
本発明において、溶射材料としては、Ｃ，Ｆｅ。In the present invention, the thermal spraying materials include C and Fe.
Ｃｏ、Ｎｉ金属またはその化合物とセラミックスやダイ
ヤモンド等の立方晶構造組成物との混合物または化合物
であれば最も顕著な効果が現われるが、セラミックスや
立方晶構造組成物単体でも同様な効果が得られる。The most remarkable effect is obtained with a mixture or compound of Co, Ni metal, or a compound thereof with a cubic crystal structure composition such as ceramics or diamond, but the same effect can be obtained with a single ceramic or cubic crystal structure composition.
マルテンサイト組織を有する金属質基質表面を少くとも
その金属質基質によって決まるＡ３変態点、Ａｃ＋ａ変
態点のいずれかの変態点に加熱してマルテンサイト組織
を一旦オーステナイト組織に変態させた後マルテンサイ
ト変態開始点以上に保持して直接またはブラスティング
を行った後に粉末溶射を行うと該粉末が前記金属質基質
に食い込み機械的に強く密着した溶射被膜が得られかつ
金属質基質の表面のみ上記変態点以上に加熱することか
ら該基質の機械的性質を損うこともない。The surface of a metallic substrate having a martensitic structure is heated to at least the A3 transformation point or the Ac+a transformation point determined by the metallic substrate to once transform the martensitic structure into an austenitic structure, and then transform to martensitic structure. If powder spraying is carried out directly or after blasting while holding the temperature above the starting point, the powder will bite into the metallic substrate, resulting in a sprayed coating with strong mechanical adhesion, and only the surface of the metallic substrate will reach the above transformation point. The mechanical properties of the substrate are not impaired due to the heating.
第１図は本発明の溶射方法の実施例を示す説明図、第２
図は第１図のＡ部拡大図、第３図は密着強度試験の説明
図である。
１・・・金ｌ′ｉＡ貿基質、 ２・・・加熱時の
軟化層。
３・・・溶射層、 ４・・・セラミックス。FIG. 1 is an explanatory diagram showing an embodiment of the thermal spraying method of the present invention, and FIG.
The figure is an enlarged view of part A in FIG. 1, and FIG. 3 is an explanatory diagram of the adhesion strength test. 1... Gold l'iA trade substrate, 2... Softening layer upon heating. 3...Thermal spray layer, 4...Ceramics.
Claims (10)
少くとも該金属質基質の組成によって決まるＡ＿３変態
点、Ａｃｍ変態点のいずれかの変態点に加熱後冷却しマ
ルテンサイト変態開始点以上に保持した状態で粉末状物
質を溶射する溶射方法。(1) The surface of a metallic substrate having a martensitic structure is heated to at least either the A_3 transformation point or the Acm transformation point, which is determined by the composition of the metallic substrate, and then cooled, and maintained above the martensitic transformation starting point. A thermal spraying method in which a powdered substance is thermally sprayed in a heated state.
少くとも該金属質基質の組成によって決まるＡ＿３変態
点、Ａｃｍ変態点のいずれかの変態点に加熱後冷却しマ
ルテンサイト変態開始点以上に保持した状態で、ブラス
ティングを行いその後粉末状物質を溶射する溶射方法。(2) The surface of a metallic substrate having a martensitic structure is heated to at least either the A_3 transformation point or the Acm transformation point, which is determined by the composition of the metallic substrate, and then cooled to maintain the surface above the martensitic transformation starting point. A thermal spraying method in which a powder substance is sprayed after blasting is carried out under such conditions.
物の少くとも１つからなる材料であることを特徴とする
特許請求の範囲第１項または第２項記載の方法。(3) The method according to claim 1 or 2, wherein the powdery substance is a material consisting of at least one of ceramics and a composition with a cubic crystal structure.
クス、立方晶構造組成物の少くとも１つからなる材料で
あることを特徴とする特許請求の範囲第１項または第２
項記載の方法。(4) Claim 1 or 2, wherein the powdery substance is a material consisting of at least one of a metal, an alloy of the metal, a ceramic, and a composition with a cubic crystal structure.
The method described in section.
むことを特徴とする特許請求の範囲第１項〜第４項のい
ずれかに記載の方法。(5) The method according to any one of claims 1 to 4, wherein the metallic substrate contains 0.4 to 6.67% by weight of C.
合金の少くとも１つと、金属炭化物の少くとも１つから
なる材料である特許請求の範囲第１項、第２項、第５項
のいずれかに記載の方法。(6) Claims 1, 2, and 5, wherein the powder substance is a material consisting of at least one of C, Fe, Co, Ni, and alloys thereof, and at least one metal carbide. The method described in any of the above.
項〜第６項のいずれかに記載の方法。(7) Claim 1, wherein the metallic substrate is a cutlery.
6. The method according to any one of items 6 to 6.
るような特許請求の範囲第１項〜第７項のいずれかに記
載の方法。(8) The method according to any one of claims 1 to 7, wherein the metallic substrate has a hardness of at least Hv500.
ーム照射法、電子ビーム照射法のいずれかで行うことを
特徴とする特許請求の範囲第１項〜第８項のいずれかに
記載の方法。(9) The metallic substrate is heated by any one of a high frequency heating method, a laser beam irradiation method, and an electron beam irradiation method. Method.
点に加熱する範囲が該金属質基質の表面から１００μｍ
以内である特許請求の範囲第１項〜第９項のいずれかに
記載の方法。(10) The range in which the metallic substrate is heated to at least one of the transformation points is 100 μm from the surface of the metallic substrate.
The method according to any one of claims 1 to 9, which is within the scope of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15229087A JPS63317657A (en) | 1987-06-18 | 1987-06-18 | Thermal spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15229087A JPS63317657A (en) | 1987-06-18 | 1987-06-18 | Thermal spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63317657A true JPS63317657A (en) | 1988-12-26 |
Family
ID=15537293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15229087A Pending JPS63317657A (en) | 1987-06-18 | 1987-06-18 | Thermal spraying method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63317657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01111856A (en) * | 1987-10-24 | 1989-04-28 | Toyota Motor Corp | Improvement of wear resistance of fe-c flame sprayed layer |
-
1987
- 1987-06-18 JP JP15229087A patent/JPS63317657A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01111856A (en) * | 1987-10-24 | 1989-04-28 | Toyota Motor Corp | Improvement of wear resistance of fe-c flame sprayed layer |
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