JPH037368Y2 - - Google Patents
Info
- Publication number
- JPH037368Y2 JPH037368Y2 JP6092285U JP6092285U JPH037368Y2 JP H037368 Y2 JPH037368 Y2 JP H037368Y2 JP 6092285 U JP6092285 U JP 6092285U JP 6092285 U JP6092285 U JP 6092285U JP H037368 Y2 JPH037368 Y2 JP H037368Y2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- opening
- metal
- metal member
- starting point
- 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
- 239000002184 metal Substances 0.000 claims description 38
- 239000000919 ceramic Substances 0.000 claims description 36
- 238000005304 joining Methods 0.000 claims description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- -1 sialon Chemical compound 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Ceramic Products (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本案はガスタービンエンジンやエンジンなどの
高温構造部品あるいは耐摩耗部品に適したセラミ
ツク部材と金属部材の接合構造に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a joining structure of a ceramic member and a metal member suitable for high-temperature structural parts or wear-resistant parts such as gas turbine engines and engines.
各種の産業機械装置における高温雰囲気となる
個所には高温強度、耐摩耗性、耐熱衝撃性に優れ
た窒化珪素、サイアロン、炭化珪素等の非酸化物
系セラミツク材より成る機構部品が適している
が、加工性にやゝ難点があり、上記セラミツク部
材のみで高温雰囲気における駆動力を伝達するよ
うな機構部品として用いることが難しく、一般に
はセラミツク部材と金属部材とを結合した複合構
造体として用いられる。
Mechanical parts made of non-oxide ceramic materials such as silicon nitride, sialon, and silicon carbide, which have excellent high-temperature strength, wear resistance, and thermal shock resistance, are suitable for parts of various industrial machinery that are exposed to high-temperature atmospheres. However, there are some difficulties in processability, and it is difficult to use the above-mentioned ceramic members alone as mechanical parts that transmit driving force in high-temperature atmospheres, so they are generally used as composite structures that combine ceramic members and metal members. .
従来のセラミツク部材と金属部材との接続構造
としては、例えば第４図〜第７図に示すように、
セラミツク部材１１と接合する金属部材１２にス
リーブ部１３を形成し、セラミツク部材１１をス
リーブ部１３に嵌着する。嵌着するには、焼嵌
め、冷し嵌め、圧入、あるいは、ロウ付等の方法
が用いられる。
As a conventional connection structure between a ceramic member and a metal member, as shown in FIGS. 4 to 7, for example,
A sleeve portion 13 is formed on the metal member 12 to be joined to the ceramic member 11, and the ceramic member 11 is fitted into the sleeve portion 13. For fitting, methods such as shrink fitting, cold fitting, press fitting, or brazing are used.
しかしながら、このような従来のセラミツク部
材と金属部材との接続構造にあつては、第４図、
第５図に示すように金属部材１２のスリーブ部先
端１３ｂが軸方向に対して直角な構造となつてい
るため、嵌着によりセラミツク部材１１とスリー
ブ部１３との間に働く応力が、スリーブ部先端１
３ｂ近傍に集中し、金属部材１２のスリーブ部先
端１３ｂに割れを生じたり、セラミツク部材１１
が破損したりする恐れがあつた。 However, in the case of such a conventional connection structure between a ceramic member and a metal member, FIG.
As shown in FIG. 5, since the sleeve end 13b of the metal member 12 has a structure perpendicular to the axial direction, the stress acting between the ceramic member 11 and the sleeve part 13 due to fitting is reduced to the sleeve part. Tip 1
3b, cracks may occur at the sleeve end 13b of the metal member 12, and cracks may occur in the vicinity of the ceramic member 11.
There was a risk that it might be damaged.
また、前記欠点を解消せんとして第６図、第７
図に示すように金属部材１２のスリーブ部１３の
開口端に向つて広がる様に滑らかな内壁面１３ａ
をもつた開口部を設けた構造では、開口起点１４
においてセラミツク部材１１とスリーブ部１３と
の間に働く応力が急激に変化し、セラミツク部材
１１の破損を招き、対策として不十分なものであ
つた。 In addition, in order to eliminate the above-mentioned drawbacks, Figs.
As shown in the figure, the inner wall surface 13a is smooth and widens toward the open end of the sleeve portion 13 of the metal member 12.
In a structure with an opening having a diameter, the opening starting point 14
In this case, the stress acting between the ceramic member 11 and the sleeve portion 13 suddenly changes, causing damage to the ceramic member 11, which is an insufficient countermeasure.
本案は、上記実情に鑑みて、スリーブ部先端近
傍および開口起点において、過度の応力集中や応
力の急激な変化を生じないセラミツク部材と金属
部材との接続構造を提供せんとするものである。
In view of the above-mentioned circumstances, the present invention aims to provide a connection structure between a ceramic member and a metal member that does not cause excessive stress concentration or sudden changes in stress near the tip of the sleeve portion and at the starting point of the opening.
本案のセラミツク部材と金属部材とを嵌合して
接合する構造において、嵌着する金属部材はスリ
ーブ部の開口近傍の内壁面を開口端に向つて広が
るような滑らかな内壁面となし、スリーブ部には
開口起点の外周にリング状の溝を設け、開口起点
近傍のスリーブ肉厚を薄くした構造となし、セラ
ミツク部材を接続したものである。
In the structure of the present invention in which a ceramic member and a metal member are fitted and joined, the metal member to be fitted has a smooth inner wall surface near the opening of the sleeve part that widens toward the opening end, and the sleeve part A ring-shaped groove is provided on the outer periphery of the starting point of the opening, the thickness of the sleeve near the starting point of the opening is made thinner, and a ceramic member is connected to the sleeve.
以下、本案を実施例によつて具体的に詳述す
る。
The present invention will be specifically explained in detail below using examples.
実施例 １
第１図において、１はセラミツク部材で丸棒状
の窒化珪素焼結体から成る。２は金属部材で炭素
鋼から成り、該金属部材２には軸心方向にセラミ
ツク部材１とほゞ同直径の空孔を形成し、開口部
近傍の内壁面３ａを開口端に向つて広がる様に形
成するとともに、スリーブ部３には開口起点４の
外周にリング状の角溝５を設け、ロウ付によりセ
ラミツク部材１を嵌着し、セラミツク・金属接合
体を作製した。角溝５は第３図ａ，ｂ，ｃに示す
様に開口起点４の位置が上記溝５ａの両端のいず
れかとほゞ一致する範囲内であれば、いずれに設
けてもよい。なお、上記溝の断面形状は角状に限
らず、曲率を持つた半丸状またはＵ字状のいずれ
でも良い。同様にして溝を設けないで嵌着したセ
ラミツク・金属接合体を作製した。Embodiment 1 In FIG. 1, numeral 1 is a ceramic member made of a round bar-shaped sintered silicon nitride body. Reference numeral 2 denotes a metal member made of carbon steel, and a hole having approximately the same diameter as the ceramic member 1 is formed in the axial direction of the metal member 2 so that the inner wall surface 3a near the opening widens toward the opening end. At the same time, a ring-shaped square groove 5 was provided on the outer periphery of the opening starting point 4 in the sleeve portion 3, and the ceramic member 1 was fitted by brazing to produce a ceramic-metal bonded body. The square groove 5 may be provided anywhere as long as the position of the starting point 4 of the opening substantially coincides with either end of the groove 5a, as shown in FIGS. 3a, b, and c. Note that the cross-sectional shape of the groove is not limited to a square shape, but may be a semicircular shape with curvature or a U-shape. In the same manner, a ceramic-metal bonded body was fabricated without providing a groove.
上記２種のセラミツク・金属接合体の金属部材
端を固定し、セラミツク部材端を押圧して片持ち
抗折強度を測定し、角溝５を設けたセラミツク・
金属接合体は片持ち抗折強度が平均80Kg／mm2であ
るのに対して、溝を設けないセラミツク・金属接
合体は片持ち抗折強度が平均55Kg／mm2であつた。 The ends of the metal members of the above two types of ceramic-metal joints were fixed, and the cantilever bending strength was measured by pressing the ends of the ceramic members.
The metal bonded body had an average cantilever bending strength of 80 kg/mm 2 , while the ceramic/metal bonded body without grooves had an average cantilever bending strength of 55 kg/mm 2 .
実施例 ２
第２図において、６は窒化珪素より成るセラミ
ツク製回転体を成し、セラミツク製回転体６の小
径部６ａと金属部材７とを金属筒状体８の中空内
に嵌入し、ロウ付固定する。金属筒状体８には実
施例１と同様の内壁面８ａを形成するとともに、
金属筒状体８には開口起点９の外周にオイルシー
ル用のピストンリング溝１０を設けたものと、開
口起点９から離れた位置にピストンリング溝１０
を設けた２種を製作し、セラミツクロータ・金属
接合体（以下、セラミツクターボロータと称す）
を製作した。ピストンリング溝１０は第３図ａ，
ｂ，ｃに示す様に、開口起点４の位置が上記溝５
ａの両端のいずれかとほゞ一致する範囲内であれ
ば、いずれに設けてもよい。Embodiment 2 In FIG. 2, reference numeral 6 denotes a ceramic rotating body made of silicon nitride, and the small diameter portion 6a of the ceramic rotating body 6 and the metal member 7 are fitted into the hollow of the metal cylindrical body 8, and the wax is applied. Attach and fix. The metal cylindrical body 8 has an inner wall surface 8a similar to that in Example 1, and
The metal cylindrical body 8 has a piston ring groove 10 for oil sealing on the outer periphery of the opening starting point 9, and a piston ring groove 10 at a position away from the opening starting point 9.
We manufactured two types of ceramic rotor/metal joints (hereinafter referred to as ceramic rotor).
was produced. The piston ring groove 10 is shown in FIG. 3a,
As shown in b and c, the position of the opening starting point 4 is aligned with the groove 5.
It may be provided anywhere within a range that approximately coincides with either end of a.
上記２種のセラミツクターボロータの不釣合を
修正した後、高速回転耐久テストを行ない、開口
起点９の外周にピストンリング溝１０を設けたセ
ラミツクターボロータでは毎分20万回転まで破壊
しないのに対し、開口起点９から離れた位置にピ
ストンリング溝を設けたセラミツクターボロータ
では、毎分12万回転で開口起点よりセラミツク製
回転体の小径部が破損した。 After correcting the unbalance of the two types of ceramic turbo rotors mentioned above, we conducted a high-speed rotation durability test and found that the ceramic turbo rotor with the piston ring groove 10 provided on the outer periphery of the opening starting point 9 did not break at up to 200,000 revolutions per minute. In a ceramic rotor in which a piston ring groove was provided at a position away from the opening starting point 9, the small diameter portion of the ceramic rotor was damaged from the opening starting point at 120,000 revolutions per minute.
なお、金属部材７と金属筒状体８とは予じめ摩
擦圧接、電子ビーム溶接等によつて接合部Ｓで接
ぎ合わせ１体化しておき、その後、金属筒状体８
とセラミツク製回転体６の小径部６ａとをロウ
付、焼嵌めなどの手段でもつて嵌着してもよい。 Note that the metal member 7 and the metal cylindrical body 8 are joined in advance into a single body at a joint S by friction welding, electron beam welding, etc., and then the metal cylindrical body 8
and the small diameter portion 6a of the ceramic rotating body 6 may be fitted together by means such as brazing or shrink fitting.
以上のような本案接続構造によれば、嵌着に際
してスリーブ部先端近傍や開口起点に応力が集中
したり、応力が急激に変化したりすることがな
く、この結果スリーブ部先端の割れの発生やセラ
ミツク部材の強度の低下の恐れがない接合体とな
すことができ、高回転を行なう各種産業機械装置
の信頼性向上に極めて有効である。
According to the above-described connection structure, stress will not be concentrated near the tip of the sleeve or at the starting point of the opening, and stress will not change suddenly during fitting, and as a result, cracks will not occur at the tip of the sleeve. It is possible to form a bonded body with no risk of deterioration in the strength of ceramic members, and it is extremely effective in improving the reliability of various industrial machinery devices that rotate at high speeds.
第１図及び第２図は本考案実施例によるセラミ
ツク部材と金属部材の接続構造を示す一部破断面
図、第３図ａ，ｂ，ｃは要部拡大断面図、第４
図、第５図、第６図及び第７図は従来のセラミツ
ク部材と金属部材の接続構造例を示す一部破断面
図である。
１：セラミツク部材、２：金属部材、３：スリ
ーブ部、４：開口起点、５：角溝、６：セラミツ
ク製回転体、７：金属部材、８：金属筒状体、
９：開口起点、１０：ピストンリング溝、１１：
セラミツク部材、１２：金属部材、１３：スリー
ブ部、１４：開口起点。
1 and 2 are partially broken sectional views showing a connection structure between a ceramic member and a metal member according to an embodiment of the present invention, FIGS. 3 a, b, and c are enlarged sectional views of main parts, and FIG.
5, 6, and 7 are partially cutaway cross-sectional views showing examples of conventional connection structures between ceramic members and metal members. 1: Ceramic member, 2: Metal member, 3: Sleeve portion, 4: Starting point of opening, 5: Square groove, 6: Ceramic rotating body, 7: Metal member, 8: Metal cylindrical body,
9: Opening starting point, 10: Piston ring groove, 11:
Ceramic member, 12: Metal member, 13: Sleeve portion, 14: Opening starting point.
Claims (1)
る構造において、金属部材自体に穿設するかもし
くは前記金属部材に他の金属製筒状部材を接合し
て軸心方向に空孔を形成したスリーブ部の開口近
傍の内壁面を開口端に向つて広がる様に形成し、
上記スリーブ部の該開口内壁面の開口起点の外周
部に溝を設けたことを特徴とするセラミツク部材
と金属部材の接続構造。 In a structure in which a ceramic member and a metal member are fitted and joined, a sleeve in which a hole is formed in the axial direction by making a hole in the metal member itself or by joining another metal cylindrical member to the metal member. The inner wall surface near the opening of the section is formed so as to widen toward the opening end,
A connection structure for a ceramic member and a metal member, characterized in that a groove is provided on the outer periphery of the opening starting point of the opening inner wall surface of the sleeve portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6092285U JPH037368Y2 (en) | 1985-04-22 | 1985-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6092285U JPH037368Y2 (en) | 1985-04-22 | 1985-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61176231U JPS61176231U (en) | 1986-11-04 |
| JPH037368Y2 true JPH037368Y2 (en) | 1991-02-25 |
Family
ID=30588715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6092285U Expired JPH037368Y2 (en) | 1985-04-22 | 1985-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037368Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62289385A (en) * | 1986-06-09 | 1987-12-16 | Ngk Insulators Ltd | Ceramic-metal bonded body |
| JPH01153577A (en) * | 1987-12-11 | 1989-06-15 | Ngk Insulators Ltd | Joined material of metal and ceramic and production thereof |
-
1985
- 1985-04-22 JP JP6092285U patent/JPH037368Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61176231U (en) | 1986-11-04 |
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