JP2610562B2 - Jig for thermal spray molding production - Google Patents
Jig for thermal spray molding productionInfo
- Publication number
- JP2610562B2 JP2610562B2 JP4187789A JP18778992A JP2610562B2 JP 2610562 B2 JP2610562 B2 JP 2610562B2 JP 4187789 A JP4187789 A JP 4187789A JP 18778992 A JP18778992 A JP 18778992A JP 2610562 B2 JP2610562 B2 JP 2610562B2
- Authority
- JP
- Japan
- Prior art keywords
- jig
- thermal spray
- side plate
- thermal
- layer
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は従来の鋳造、圧延、粉末
冶金的手法等で製造される材料とは異なった特性を有す
る溶射成形体を製造するために用いる溶射成形体製造用
治具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for producing a spray-molded article used for producing a spray-molded article having characteristics different from those of materials produced by conventional casting, rolling, powder metallurgy techniques and the like. Things.
【０００２】[0002]
【従来の技術】一般に溶射法は金属基材或はセラミック
ス基材の表面改質法として利用される事が多く、基材と
溶射層との密着性を確保することが溶射施工上、又利用
上の重要課題であった。しかしながら溶射で形成される
溶射層は従来の鋳造、圧延、粉末冶金的手法等で製造さ
れる材料とは異なった特性を有している上、製造工程が
簡便な利点を持つ。例えば金属系の溶射層は従来の鋳
造、圧延等で製造される材料に比較して硬度が高く耐摩
耗性、耐エロージョン性に優れている。又セラミックス
或はセラミックスと金属の混合物（サーメット）は一般
に粉末冶金的手法で製造されているが、粉末冶金的手法
は粉末の混合工程、脱気工程、緻密化焼成工程等複雑な
工程を必要とする。溶射法によれば、これら複雑な工程
を必要とする事なく、簡便にセラミックス或はサーメッ
トの被覆層（溶射層）を形成することができ、その特性
も従来の粉末冶金的手法で製造したものと同等である。2. Description of the Related Art In general, a thermal spraying method is often used as a surface modification method for a metal substrate or a ceramic substrate. Was an important issue. However, the thermal sprayed layer formed by thermal spraying has characteristics different from those of materials manufactured by conventional casting, rolling, powder metallurgy, and the like, and has an advantage that the manufacturing process is simple. For example, a metal-based sprayed layer has a higher hardness than a material manufactured by conventional casting, rolling, and the like, and is excellent in wear resistance and erosion resistance. Ceramics or a mixture of ceramics and metal (cermet) is generally manufactured by powder metallurgy, but powder metallurgy requires complicated steps such as powder mixing, degassing, and densification and firing. I do. According to the thermal spraying method, a ceramic or cermet coating layer (sprayed layer) can be easily formed without requiring these complicated steps, and the characteristics are also manufactured by a conventional powder metallurgy method. Is equivalent to
【０００３】又、従来の粉末冶金的手法では製造が比較
的困難とされている、成形体厚み方向に組成或は気孔等
の機能を傾斜させた、いわゆる傾斜機能材料も、溶射法
によれば容易に形成できる。これら溶射法で形成した金
属又はセラミックス又はサーメットから成る溶射層を基
材から剥離させることにより、溶射層の持つ特性を生か
した新しい材料の創製が可能となる。従来、溶射層を基
材から剥離して溶射層の持つ特性を利用したスピーカー
用振動板の製造方法が、特開昭５９−１７７９５号公報
に記載されている。しかしながらこの方法によれば、基
材を塩酸から成る腐食液に浸漬して溶解除去する方法で
あり、この方法が適用できる溶射層は、腐食液に対して
不活性な材料に限定される。[0003] In addition, a so-called functionally graded material having a composition or a function of pores inclined in the thickness direction of a compact, which is relatively difficult to produce by the conventional powder metallurgy technique, is also difficult to produce by spraying. It can be easily formed. By peeling the thermal sprayed layer formed of the metal, ceramics or cermet formed by the thermal spraying method from the base material, it is possible to create a new material utilizing the properties of the thermal sprayed layer. Conventionally, a method for manufacturing a speaker diaphragm using the properties of the sprayed layer by peeling the sprayed layer from the base material is described in Japanese Patent Application Laid-Open No. 59-17795. However, according to this method, the substrate is immersed in a corrosive solution composed of hydrochloric acid to dissolve and remove the substrate. The sprayed layer to which this method can be applied is limited to a material that is inert to the corrosive solution.
【０００４】[0004]
【発明が解決しようとする課題】本発明は優れた特性を
有する溶射成形体を製造するために、簡便な方法により
溶射層を基材から剥離させることを可能とする溶射成形
体製造用治具を提供するものであり、本発明の溶射成形
体製造用治具は金属、セラミックス、サーメット、傾斜
機能材料いずれの材料にも適用可能である。DISCLOSURE OF THE INVENTION The present invention provides a jig for manufacturing a spray-molded article capable of peeling a sprayed layer from a substrate by a simple method in order to produce a spray-molded article having excellent characteristics. The jig for producing a thermal spray molded article of the present invention is applicable to any of metals, ceramics, cermets, and functionally gradient materials.
【０００５】[0005]
【課題を解決するための手段】本発明は表面粗度の中心
線平均粗さを０．１〜０．５μｍに調整した基材と、表
面粗度の中心線平均粗さを３〜５μｍに調整した側板と
から成り、該基材の側面に取り外し可能な該側板を取り
付けた溶射成形体製造用治具の表面に、金属又はセラミ
ックス又は金属とセラミックスの混合物を溶射して、該
治具の１表面に溶射層を形成した後、該治具より該側板
と溶射層を同時に剥離して、溶射成形体を製造するため
の溶射成形体の製造用治具を提供するものである。According to the present invention, there is provided a substrate wherein the center line average roughness of the surface roughness is adjusted to 0.1 to 0.5 μm , and the center line average roughness of the surface roughness is adjusted to 3 to 5 μm . A metal or ceramics or a mixture of metal and ceramics is sprayed on the surface of a jig for manufacturing a spray-formed body, which is made up of an adjusted side plate and has the side plate detachably attached to a side surface of the base material. After the thermal spray layer is formed on one surface, the side plate and the thermal spray layer are simultaneously peeled off from the jig to provide a thermal spray molded article manufacturing jig for manufacturing a thermal spray molded article.
【０００６】本発明治具の第１の構成要素である基材の
表面粗度の中心線平均粗さを１μｍ未満、好ましくは
０．５〜０．１μｍに調整する理由は、本発明治具の第
１の構成要素である基材への溶射層の密着力を小さくし
て、溶射層の剥離を容易にするためである。基材の表面
粗度の中心線平均粗さが１μｍ以上の場合には、投錨効
果により基材と溶射層の密着力が大きくなり、溶射後、
基材からの溶射層の剥離が困難に成る。The reason for adjusting the center line average roughness of the surface roughness of the base material, which is the first component of the jig of the present invention, to less than 1 μm, preferably 0.5 to 0.1 μm is as follows. This is because the adhesion of the thermal spray layer to the base material, which is the first component, is reduced, and the thermal spray layer is easily separated. When the center line average roughness of the surface roughness of the base material is 1 μm or more, the adhesion between the base material and the sprayed layer increases due to the anchor effect, and after the spraying,
Separation of the sprayed layer from the substrate becomes difficult.
【０００７】本発明治具の第２の構成要素である取り外
し可能な側板の表面粗度の中心線平均粗さを１μｍ以
上、好ましくは３〜５μｍに調整する理由は、本発明治
具の第２の構成要素である取り外し可能な側板への溶射
層の密着力を大きくして、溶射中（溶射層形成過程）で
溶射層が、第１の構成要素である基材、および第２の構
成要素である側板から成る本発明の治具から分離する
（浮き上がる）ことを防止するためである。The reason why the center line average roughness of the surface roughness of the removable side plate, which is the second component of the jig of the present invention, is adjusted to 1 μm or more, preferably 3 to 5 μm, is as follows. The adhesion of the sprayed layer to the detachable side plate, which is the second component, is increased so that the sprayed layer becomes the first component, the base material, and the second configuration during the spraying (spray layer formation process). This is for preventing separation (floating) from the jig of the present invention comprising the side plate as an element.
【０００８】本発明治具の第２の構成要素である取り外
し可能な側板の表面粗度の中心線平均粗さが１μｍ未満
の場合、治具表面に溶射された溶射層は治具全面にわた
り投錨効果が小さくなり、密着力が低下して、溶射中
（溶射層形成過程）に生じる残留応力によって、治具よ
り分離あるいは剥離して適正な形状、厚みの溶射層の形
成が不可能になる。When the center line average roughness of the surface roughness of the removable side plate, which is the second component of the jig of the present invention, is less than 1 μm, the sprayed layer sprayed on the jig surface is anchored over the entire jig. The effect is reduced, the adhesion is reduced, and the residual stress generated during the thermal spraying (spray layer forming process) separates or separates from the jig, making it impossible to form a thermal spray layer having an appropriate shape and thickness.
【０００９】本発明は治具の第１の構成要素である基材
の表面粗度を小さくして、溶射層との投錨効果を小さく
押さえることにより、基材と溶射層との密着力は小さく
するが、本発明治具の第２の構成要素である取り外し可
能な側板の表面粗度は大きくして側板と溶射層とは投錨
効果による密着力を確保して溶射層を維持し、適正形
状、膜厚の溶射層を形成する。溶射層形成後、側板と溶
射層を一体のまま基材より剥離し、溶射層と側板から成
る溶射成形体部材を得る。この様にして得られた溶射成
形体部材から例えば高速精密切断機あるいは放電切断機
等により側板を機械的に除去して、所定の形状の溶射成
形体を得る。According to the present invention, the adhesion between the substrate and the sprayed layer is reduced by reducing the surface roughness of the substrate, which is the first component of the jig, and suppressing the anchoring effect between the substrate and the sprayed layer. However, the surface roughness of the removable side plate, which is the second component of the jig of the present invention, is increased to secure the adhesion between the side plate and the sprayed layer by the anchoring effect, maintain the sprayed layer, and maintain the proper shape. To form a sprayed layer having a thickness. After the formation of the thermal spray layer, the side plate and the thermal spray layer are peeled off from the substrate while being integrated, thereby obtaining a thermal spray molded member composed of the thermal spray layer and the lateral plate. The side plate is mechanically removed from the thus obtained spray-molded member by, for example, a high-speed precision cutting machine or a discharge cutting machine to obtain a spray-formed body having a predetermined shape.
【００１０】本発明治具の第１の構成要素である基材の
材質は金属、セラミックスの何れも使用出来るが、形成
する溶射層の材料に合わせて使い分けることが好まし
い。基材の熱膨張係数と溶射層の熱膨張係数の差は極力
小さくすることが好ましく、溶射中に生ずる基材と溶射
層との反応は避けることが好ましい。The material of the substrate, which is the first component of the jig of the present invention, can be any of metal and ceramics, but it is preferable to use different materials according to the material of the sprayed layer to be formed. It is preferable to minimize the difference between the thermal expansion coefficient of the substrate and the thermal expansion coefficient of the thermal spray layer, and it is preferable to avoid the reaction between the thermal spray layer and the substrate during thermal spraying.
【００１１】本発明治具の第２の構成要素である側板の
材質は金属、セラミックスの何れも使用出来るが、形成
する溶射層とは密着力を確保する必要がある。側板の熱
膨張係数と溶射層の熱膨張係数の差も極力小さくするこ
とが好ましいが、一般的には金属材料が使用できる。側
板の幅は、密着力を確保できる程度あれば良く、一般的
には２〜１０ｍｍ程度あれば良い。本発明の治具を用い
ての溶射層形成はプラズマ溶射法、ガス溶射法等いずれ
の溶射法でも実施できる。しかし大気中の溶射で溶射層
の成分変動を生ずる材料の溶射には減圧プラズマ溶射法
の使用が好ましい。以下、減圧プラズマ溶射法による本
発明の治具を用いた溶射成形体の製造を実施例により説
明する。As the material of the side plate, which is the second component of the jig of the present invention, any of metal and ceramics can be used, but it is necessary to ensure adhesion to the sprayed layer to be formed. It is preferable to minimize the difference between the thermal expansion coefficient of the side plate and the thermal expansion coefficient of the sprayed layer, but generally, a metal material can be used. The width of the side plate only needs to be sufficient to ensure the adhesion, and generally needs to be about 2 to 10 mm. The formation of the thermal spray layer using the jig of the present invention can be performed by any thermal spraying method such as a plasma thermal spraying method and a gas thermal spraying method. However, it is preferable to use a low pressure plasma spraying method for spraying a material which causes a change in the composition of the sprayed layer by spraying in the atmosphere. Hereinafter, the production of a thermal spray molded article using the jig of the present invention by the reduced pressure plasma thermal spraying method will be described with reference to examples.
【００１２】[0012]
実施例１ 図１において、幅３０ｍｍ、長さ１００ｍｍ、厚さ３０
ｍｍの銅製角材の１表面をＳｉＣ６００番の研磨紙で研
磨加工して、加工表面の中心線平均粗さを０．１μｍと
した銅製基材１の四辺に幅方向の１表面をＳｉＣ２４番
の砥粒によりショットブラスト加工して、加工表面の中
心線平均粗さ４μｍとした幅２ｍｍ、長さ１００ｍｍお
よび３４ｍｍ、厚さ１０ｍｍの銅製側板２をネジ止めし
溶射成形体製造用治具とした。治具表面にアルミ−アル
ミナ混合溶射層３を減圧プラズマ溶射法により形成し
た。アルミ−アルミナ混合溶射層は、混合溶射層のアル
ミ−アルミナ混合比が体積比で５０：５０と成るよう溶
射中の粉末送給量を各々一定に制御して実施した。溶射
に用いた原料アルミ粉末の粒径は１０６〜３２μｍ、送
給量５０ｇ／ｍｉｎとし、原料アルミナ粉末の粒径は２
５〜５μｍ、送給量６０ｇ／ｍｉｎとした。溶射条件は
電力８５ＫＷ、プラズマガスＡｒ＋Ｈｅ混合ガス、雰囲
気の圧力４×１０4 Ｐａである。溶射後、側板止めネジ
４を外してアルミ−アルミナ混合溶射層３と銅製側板２
より成る溶射成形体部材を基材１より剥離した。剥離し
た溶射成形体部材の側板部を高速精密切断機により切断
除去して、幅２８ｍｍ、長さ９８ｍｍ、厚み３．２ｍｍ
のアルミ−アルミナ混合溶射成形体板を作製した。Example 1 In FIG. 1, width 30 mm, length 100 mm, thickness 30
One surface of a copper square bar having a width of 0.1 mm is polished with a polishing paper of SiC No. 600, and one surface in the width direction is formed by polishing one surface of SiC No. 24 on four sides of the copper base material 1 having a center line average roughness of 0.1 μm. The copper side plate 2 having a width of 2 mm, a length of 100 mm and a length of 34 mm, and a thickness of 10 mm having a center line average roughness of 4 μm and a thickness of 10 mm was screwed to obtain a jig for producing a thermal spray molded body. An aluminum-alumina mixed thermal spray layer 3 was formed on the jig surface by a low pressure plasma thermal spraying method. The aluminum-alumina mixed thermal spray layer was carried out by controlling the powder feed amount during thermal spraying to be constant so that the aluminum-alumina mixed ratio of the mixed thermal spray layer was 50:50 in volume ratio. The particle size of the raw aluminum powder used for thermal spraying was 106 to 32 μm, the feed rate was 50 g / min, and the particle size of the raw alumina powder was 2
The feed rate was 5 to 5 μm and the feed rate was 60 g / min. Thermal spraying conditions are power of 85 kW, plasma gas Ar + He mixed gas, and atmospheric pressure of 4 × 10 4 Pa. After the thermal spraying, the side plate set screw 4 is removed, and the aluminum-alumina mixed thermal spray layer 3 and the copper side plate 2 are removed.
The thermally sprayed molded body member was peeled from the substrate 1. The side plate portion of the separated thermal spray molded body member was cut and removed by a high-speed precision cutting machine, and the width was 28 mm, the length was 98 mm, and the thickness was 3.2 mm.
Alumina-alumina mixed thermal spray molded body plate was produced.
【００１３】実施例２ 図２において、直径１２０ｍｍ丸棒の１端が半径６０ｍ
ｍである、機械構造用炭素鋼製半球形状材料の表面をＳ
ｉＣ６００番の研磨紙で研磨加工して、加工表面の中心
線平均粗さを０．１〜０．３μｍとした半球形状基材１
の下部（直径部）外周側面に、ＳｉＣ２４番の砥粒によ
りショットブラスト加工して、加工表面の中心線平均粗
さ４μｍとした基材と同一材質で幅１０ｍｍ、厚さ１０
ｍｍの円筒形の側板２をネジ止め固定し、溶射成形体製
造用半球形状治具とした。半球形状治具表面にモリブデ
ン溶射層３を減圧プラズマ溶射法により形成した。使用
した原料モリブデン粉末は平均粒径２．９μｍである。
溶射条件は電力８７ＫＷ、プラズマガス、Ａｒ＋Ｈｅ混
合ガス、雰囲気の圧力４×１０4 Ｐａである。溶射後、
側板止めネジ４を外してモリブデン溶射層３と円筒形側
板２より成る溶射成形体部材を半球形状基材１より剥離
した。剥離した溶射成形体部材の円筒形側板部を放電切
断機により切断除去して厚み１ｍｍの半球形状のモリブ
デン溶射成形体を作製した。Embodiment 2 In FIG. 2, one end of a round bar having a diameter of 120 mm has a radius of 60 m.
m, the surface of the carbon steel hemispherical material for machine structural use is S
A hemispherical base material 1 polished with iC600 abrasive paper and having a center line average roughness of the processed surface of 0.1 to 0.3 μm
The outer peripheral side of the lower part (diameter part) is subjected to shot blasting using SiC No. 24 abrasive grains, and is made of the same material as the base material having a center line average roughness of 4 μm on the processed surface, width 10 mm, thickness 10
mm side cylindrical plate 2 was screwed and fixed to obtain a hemispherical jig for manufacturing a thermal spray molded article. A molybdenum sprayed layer 3 was formed on the surface of the hemispherical jig by a low-pressure plasma spraying method. The raw material molybdenum powder used has an average particle size of 2.9 μm.
Thermal spraying conditions are power of 87 KW, plasma gas, Ar + He mixed gas, and atmosphere pressure of 4 × 10 4 Pa. After spraying,
The side plate setscrew 4 was removed, and the spray-formed body member composed of the molybdenum sprayed layer 3 and the cylindrical side plate 2 was peeled off from the hemispherical base material 1. The cylindrical side plate portion of the separated thermal spray molded body member was cut and removed by an electric discharge cutter to prepare a hemispherical molybdenum thermal spray molded body having a thickness of 1 mm.
【００１４】[0014]
【発明の効果】以上説明したごとく、本発明の溶射成形
体製造用治具を使用することにより、溶射層を基材から
簡単に剥離することが可能と成り、従来の鋳造、圧延、
粉末冶金的手法で製造される材料とは異なった特性を有
する溶射成形体を簡便に製造することができる。As described above, by using the jig for manufacturing a thermal spray molded article of the present invention, the thermal sprayed layer can be easily peeled off from the substrate, and the conventional casting, rolling,
A spray-molded article having properties different from those of a material produced by a powder metallurgy technique can be easily produced.
【図１】本発明の第１実施例の工程の概略を示す説明
図、FIG. 1 is an explanatory view showing an outline of the steps of a first embodiment of the present invention;
【図２】本発明の第２実施例の工程の概略を示す説明図
である。FIG. 2 is an explanatory view showing an outline of the steps of a second embodiment of the present invention.
１ 基材 ２ 側板 ３ 溶射成形体 ４ 側板止めネジ ５ プラズマ溶射ガン DESCRIPTION OF SYMBOLS 1 Base material 2 Side plate 3 Thermal spray molding 4 Side plate screw 5 Plasma spray gun
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−179416（ＪＰ，Ａ) 特開 平４−259368（ＪＰ，Ａ) 特開 平４−53743（ＪＰ，Ａ) 特開 平４−506336（ＪＰ，Ａ) 特開 昭61−163171（ＪＰ，Ａ) 特開 昭59−222308（ＪＰ，Ａ) 特開 昭54−72784（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-179416 (JP, A) JP-A-4-259368 (JP, A) JP-A-4-53743 (JP, A) 506336 (JP, A) JP-A-61-163171 (JP, A) JP-A-59-222308 (JP, A) JP-A-54-72784 (JP, A)
Claims (1)
０．５μｍに調整した基材と、該基材の側面に取り外し
可能で、表面粗度の中心線平均粗さを３〜５μｍに調整
した側板を取り付けた溶射成形体製造用治具であって、
該治具の表面に、金属又はセラミックス又は金属とセラ
ミックスの混合物を溶射して溶射層を形成した後、該側
板と溶射層を同時に該基材より剥離して、溶射成形体を
製造するための溶射成形体製造用治具。1. A center line average roughness of surface roughness of 0.1 to 0.1
What is claimed is: 1. A jig for producing a thermal spray molded article, comprising: a base material adjusted to 0.5 μm; and a side plate which is detachable on a side surface of the base material and has a side plate whose center line average roughness of surface roughness is adjusted to 3 to 5 μm. ,
After spraying a metal or ceramics or a mixture of metal and ceramics on the surface of the jig to form a sprayed layer, the side plate and the sprayed layer are simultaneously peeled from the base material to produce a spray-molded body. Jig for manufacturing thermal spray molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4187789A JP2610562B2 (en) | 1992-07-15 | 1992-07-15 | Jig for thermal spray molding production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4187789A JP2610562B2 (en) | 1992-07-15 | 1992-07-15 | Jig for thermal spray molding production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0633215A JPH0633215A (en) | 1994-02-08 |
| JP2610562B2 true JP2610562B2 (en) | 1997-05-14 |
Family
ID=16212255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4187789A Expired - Lifetime JP2610562B2 (en) | 1992-07-15 | 1992-07-15 | Jig for thermal spray molding production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2610562B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5154141B2 (en) | 2007-05-21 | 2013-02-27 | 信越化学工業株式会社 | Rare earth oxide-containing thermal spray substrate and laminate |
| JP6421525B2 (en) | 2013-10-09 | 2018-11-14 | 信越化学工業株式会社 | Method for producing thermal spray molded body |
| JP7316835B2 (en) * | 2019-04-26 | 2023-07-28 | 学 木内 | METHOD FOR MANUFACTURING MICRO-MOLDED PRODUCTS BY METAL SPRAYING |
-
1992
- 1992-07-15 JP JP4187789A patent/JP2610562B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633215A (en) | 1994-02-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19961126 |