JPS6347601Y2 - - Google Patents
Info
- Publication number
- JPS6347601Y2 JPS6347601Y2 JP1983069986U JP6998683U JPS6347601Y2 JP S6347601 Y2 JPS6347601 Y2 JP S6347601Y2 JP 1983069986 U JP1983069986 U JP 1983069986U JP 6998683 U JP6998683 U JP 6998683U JP S6347601 Y2 JPS6347601 Y2 JP S6347601Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- rotating body
- intermediate member
- drive shaft
- heat
- 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 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は、セラミツク翼車のように耐熱脆性材
料より成る回転体とこれに回転動力を伝達する駆
動軸との一体化を図る回転体と駆動軸の接合部構
造に関するものである。[Detailed description of the invention] The present invention relates to a joint structure between a rotating body and a drive shaft, which aims to integrate a rotating body made of a heat-resistant brittle material such as a ceramic impeller with a drive shaft that transmits rotational power to the rotating body. It is something.
従来、駆動軸を介して翼車を回転せしめる送風
機は、各種産業分野において広く利用されている
が、送風対象となるガスの温度が比較的低かつた
ため、翼車と駆動軸の双方を金属材料により製作
し一般的な結合手段によつてこれらを一体化して
も問題がなかつた。ところが、近年、科学技術等
の進歩に伴い、高温ガスを送風対象とする送風機
が要求されてきているが、従来のような金属製の
翼車を使用した送風機では、翼車そのものの高温
強度に限界があり、上記要求に応えることができ
ない。 Conventionally, blowers that rotate a blade wheel via a drive shaft have been widely used in various industrial fields, but because the temperature of the gas to be blown was relatively low, both the blade wheel and the drive shaft were made of metal. There was no problem even if they were manufactured using a conventional method and integrated by a common connecting means. However, in recent years, with advances in science and technology, there has been a demand for blowers that can blow high-temperature gas, but conventional blowers that use metal impellers have problems with the high-temperature strength of the impeller itself. There are limitations and it is not possible to meet the above requirements.
そこで、高温耐熱強度を有するセラミツクを翼
車等の材料として用いることが考えられるが、セ
ラミツクは衝撃に弱い脆性材料である上、圧縮強
度は高いが曲げ強度や引張り強度は表面粗度や内
部欠陥により信頼性に乏しいため構造物に採用す
ることはできず、したがつて、駆動軸と翼車の双
方をセラミツクで一体物として製作することはで
きない。また、駆動軸を通常の金属とし翼車をセ
ラミツクとしたのでは、セラミツクの膨張係数が
金属に比較して低く、しかもねじ加工等の機械加
工が極めて難しいため、通常の恒久的なあるいは
単なるねじ込み式の結合等の一般的な接合手段で
両者を一体化することができない。 Therefore, it is conceivable to use ceramics, which have high-temperature heat resistance strength, as a material for impellers, etc. However, ceramics are brittle materials that are susceptible to impact, and although they have high compressive strength, bending strength and tensile strength are affected by surface roughness and internal defects. Due to its poor reliability, it cannot be used in structures, and therefore, both the drive shaft and the impeller cannot be manufactured as a single piece of ceramic. In addition, if the drive shaft is made of ordinary metal and the impeller is made of ceramic, the coefficient of expansion of ceramic is lower than that of metal, and machining such as threading is extremely difficult. The two cannot be integrated by common joining means such as formula joining.
本考案は、上記事情に鑑みてなされたもので、
セラミツクのような耐熱脆性材料から成る回転体
の軸部の小径の中央部から大径の軸端部にかけ
て、上記回転体とほぼ同一の膨張係数を有する焼
結合金等の耐熱性金属から成る中間部材を、回転
体の軸部に密着した状態で被着し、上記中間部材
に、上記回転体の軸部の軸端部を軸部の中央部側
に押圧する押圧手段を付設するとともに、上記中
間部材を金属製の駆動軸に接合することにより、
高温雰囲気においても回転体が熱的悪影響を受け
ず、しかも駆動軸からの動力を回転体に的確に伝
達することができる回転体と駆動軸の接合構造を
提供することを目的とする。 This invention was made in view of the above circumstances,
A middle part made of a heat-resistant metal such as a sintered alloy that has almost the same coefficient of expansion as the rotating body, from the center of the small diameter of the shaft of the rotating body made of a heat-resistant brittle material such as ceramic to the end of the large diameter shaft. The member is closely attached to the shaft of the rotating body, and the intermediate member is provided with a pressing means for pressing the shaft end of the shaft of the rotating body toward the center of the shaft, and By joining the intermediate member to the metal drive shaft,
It is an object of the present invention to provide a joining structure for a rotating body and a drive shaft, which allows the rotating body to be free from adverse thermal effects even in a high-temperature atmosphere and can accurately transmit power from the drive shaft to the rotating body.
以下、本考案を図面に基づいて詳細に説明す
る。 Hereinafter, the present invention will be explained in detail based on the drawings.
第１図および第２図は、本考案の一実施例を示
すもので、図中１は送風機の翼車等の回転体の軸
部である。この軸部１は、セラミツクのような耐
熱性、低膨張性を有する脆性材料（以下、耐熱脆
性材料という。）により形成されたもので、その
一方（第１図における右方）の軸端部１ａは、軸
中央部１ｂの軸径より大きい径を有し、かつその
両側に切欠１ｅ，１ｅを設けた断面を有し、軸中
央部１ｂにかけてすぼまるようにテーパ１ｆがつ
けられた形状に形成されている。また、上記軸端
部１ａの端部１ｃには嵌込み穴１ｄが穿設され、
この嵌込み穴１ｄに、断熱性の高いセラミツクか
ら成りかつ端面に円環状の段部２ａを有する受け
部材２が、段部２ａを外方に向けて嵌め込まれて
いる。さらに、上記軸部１には中間部材３が一体
的に結合されている。この中間部材３は、Ｗ−
Ni系やMo系等の焼結合金のように、耐熱脆性材
料に近い耐熱性と膨張係数を有しかつ機械加工性
の良い金属（以下耐熱性金属という。）により形
成されたもので、上記軸端部１ａの端部１ｃの隈
部と外周面を全体的に覆うことにより軸部１に密
着嵌合されて結合されており、また、その一方
（第１図における右方）の端部には軸部１の端部
１ｃに通じる中空孔３ａが穿設され、この中空孔
３ａにねじ部ｍが形成されるとともに、その外周
面にもねじ部ｎが設けられている。そして、上記
中空孔３ａのねじ部ｍには、耐熱性金属から成る
円筒状の押し金具４が螺着されている。この押し
金具４の一側（第１図における左側）の端面に
は、受け部材２の円環状の段部２ａと同径の円環
状の溝部４ａが段部２ａと中心を一致させて対向
するように設けられており、この溝部４ａと段部
２ａ間にバネ５が嵌め込まれている。 FIGS. 1 and 2 show an embodiment of the present invention, in which numeral 1 represents the shaft of a rotating body such as a blade wheel of a blower. This shaft portion 1 is made of a heat-resistant, low-expansion brittle material such as ceramic (hereinafter referred to as heat-resistant brittle material), and one (right side in Fig. 1) shaft end portion 1a has a diameter larger than the shaft diameter of the shaft center portion 1b, and has a cross section with notches 1e, 1e provided on both sides thereof, and has a tapered shape 1f so as to narrow toward the shaft center portion 1b. is formed. Further, a fitting hole 1d is bored in the end 1c of the shaft end 1a,
A receiving member 2 made of highly insulating ceramic and having an annular step 2a on its end face is fitted into the fitting hole 1d with the step 2a facing outward. Further, an intermediate member 3 is integrally connected to the shaft portion 1. This intermediate member 3 is W-
It is made of a metal such as Ni-based or Mo-based sintered alloy, which has heat resistance and expansion coefficient close to that of heat-resistant brittle materials and has good machinability (hereinafter referred to as heat-resistant metal). The shaft end portion 1a is closely fitted and connected to the shaft portion 1 by completely covering the corner and the outer circumferential surface of the end portion 1c, and one end (the right side in FIG. 1) is connected to the shaft portion 1. A hollow hole 3a communicating with the end 1c of the shaft portion 1 is bored, a threaded portion m is formed in the hollow hole 3a, and a threaded portion n is also provided on the outer peripheral surface of the hollow hole 3a. A cylindrical pusher 4 made of a heat-resistant metal is screwed onto the threaded portion m of the hollow hole 3a. An annular groove 4a having the same diameter as the annular step 2a of the receiving member 2 faces the end surface of one side (the left side in FIG. 1) of the pusher 4, with its center aligned with the step 2a. A spring 5 is fitted between the groove portion 4a and the stepped portion 2a.
さらに、回転体の軸部１と一体的に結合された
上記中間部材３は駆動軸６に接合されている。こ
駆動軸６は、図示しない駆動装置の出力軸に連結
されたもので、通常の鉄系の金属により形成され
るとともに、その端部６ａには、内周面にねじ部
ｐを備えた軸穴６ｂが形成され、この軸穴６ｂの
ねじ部ｐに上記ねじ部ｎが螺合されるとともに、
該中間部材３の他端のフランジ部３ｃが上記軸穴
６ｂに密嵌合されて中間部材３と駆動軸６が接合
されている。そして、上記軸部１の中心と駆動軸
６の中心は互いに一致せしめられており、駆動軸
６の回転により回転体が的確に回転するように構
成されている。また、上記駆動軸６の内部には、
複数の管路６ｃが駆動軸６の周方向に所定ピツチ
でかつ長手方向に沿つて設けられている。これら
管路６ｃは駆動軸６の端部６ａ側において連通管
路６ｄにより相互に連通せしめられており、この
管路６ｃ，６ｄに、冷却媒体を通じて駆動軸６を
冷却することができるようになつている。 Further, the intermediate member 3, which is integrally connected to the shaft portion 1 of the rotating body, is joined to a drive shaft 6. The drive shaft 6 is connected to an output shaft of a drive device (not shown), and is made of ordinary iron-based metal. A hole 6b is formed, and the threaded portion n is screwed into the threaded portion p of the shaft hole 6b,
The flange portion 3c at the other end of the intermediate member 3 is tightly fitted into the shaft hole 6b, so that the intermediate member 3 and the drive shaft 6 are joined. The center of the shaft portion 1 and the center of the drive shaft 6 are made to coincide with each other, so that the rotation of the drive shaft 6 accurately rotates the rotating body. Moreover, inside the drive shaft 6,
A plurality of conduits 6c are provided along the circumferential direction of the drive shaft 6 at predetermined pitches and along the longitudinal direction. These pipes 6c are connected to each other by a communication pipe 6d on the end 6a side of the drive shaft 6, and the drive shaft 6 can be cooled by passing a cooling medium through the pipes 6c and 6d. ing.
なお、前記受け部材２は前述のように断熱性の
高いセラミツクから成るため、受け部材２からの
駆動軸６への伝熱は適宜に緩和されるようになつ
ている。 Note that since the receiving member 2 is made of ceramic with high heat insulation properties as described above, heat transfer from the receiving member 2 to the drive shaft 6 is moderated as appropriate.
次に、本考案の接合部構造の作用について説明
する。 Next, the operation of the joint structure of the present invention will be explained.
まず、装置の始動時にあつては、駆動軸６、中
間部材３および回転体の軸部１はともに低温状態
にある。この時、回転体の軸部１は中間部材３と
一体的に結合し、また中間部材３は駆動軸６に螺
着されているため、起動トルクは駆動軸６から中
間部材３を経て軸部１に確実に伝達されて回転体
が回転する。したがつて、回転体と駆動軸６との
接合部にガタが生じて、回転体がアンバランスと
なり、振動が発生するといつた事故が回避でき
る。 First, when the apparatus is started, the drive shaft 6, intermediate member 3, and shaft portion 1 of the rotating body are all in a low temperature state. At this time, since the shaft portion 1 of the rotating body is integrally coupled with the intermediate member 3, and the intermediate member 3 is screwed onto the drive shaft 6, the starting torque is transmitted from the drive shaft 6 through the intermediate member 3 to the shaft portion. 1 and the rotating body rotates. Therefore, it is possible to avoid an accident in which play occurs at the joint between the rotating body and the drive shaft 6, causing the rotating body to become unbalanced and causing vibration.
一方、装置の定常作動状態においては、回転体
と軸部１および駆動軸６等は、ともに送風すべき
高温作動ガスからの伝熱により温度上昇する。そ
の際、耐熱脆性材料の軸部１と耐熱性金属の中間
部材３とは、ともに高温雰囲気に耐える上、その
膨張係数も前者が2.0〜7.0×10-6／℃程度、後者
が3.9〜6.0×10-6／℃程度と双方とも大差がない
ため結合部に不都合な緩みが生じることはない。
また、駆動軸６は、前述のように通常の鉄系金属
から成るから膨張係数は比較的高いが、中間部材
３とは螺嵌されている上、管路６ｃに冷却媒体を
通して駆動軸６自体を冷却するようになつている
ためガタは生じない。さらに、軸部１と中間部材
３との間に、膨張係数の差により仮に緩みが発生
したとしても、バネ５の反力により軸部１は第１
図における左方に押圧されて、中間部材３のテー
パ孔３ｂと軸部１のテーパ部１ｆとの密着嵌合を
維持されるため、軸部１の芯がずれたりすること
はない。 On the other hand, in a steady operating state of the device, the temperature of the rotating body, shaft portion 1, drive shaft 6, etc. increases due to heat transfer from the high-temperature working gas to be blown. At this time, both the shaft portion 1 made of heat-resistant brittle material and the intermediate member 3 made of heat-resistant metal can withstand high-temperature atmospheres, and their expansion coefficients are approximately 2.0 to 7.0×10 -6 /°C for the former and 3.9 to 6.0 for the latter. Since there is not a big difference between the two at approximately ×10 -6 /°C, there will be no undesirable loosening of the joint.
The drive shaft 6 has a relatively high expansion coefficient because it is made of ordinary iron-based metal as described above, but it is screwed into the intermediate member 3 and the drive shaft 6 itself is Since it is designed to cool down, no rattling occurs. Furthermore, even if loosening occurs between the shaft portion 1 and the intermediate member 3 due to the difference in expansion coefficients, the reaction force of the spring 5 causes the shaft portion 1 to
Since the tapered hole 3b of the intermediate member 3 and the tapered portion 1f of the shaft portion 1 are kept tightly fitted by being pressed to the left in the figure, the center of the shaft portion 1 will not shift.
なお、前記において、耐熱脆性材料の軸部１と
耐熱性金属の中間部材３とを一体的に結合するに
あたつては、既に焼成された加工済みあるいは未
加工の軸部１に中間部材３を圧縮成形して焼結す
る。この時、中間部材３には焼結縮みが発生する
が、軸部１に作用する応力は圧縮応力であり、材
料強度的には不具合はない。また、軸部１の焼成
時にも縮みが発生するが、耐熱脆性材料と耐熱性
金属の焼成焼結時の収縮率がほぼ同一である場合
には、軸部１の成形後、中間部材３を成形し、同
時に焼成焼結を行うようにしてもよく、いずれに
おいても双方を一体的に結合した後に中間部材３
のねじ加工や研磨等の機械加工を行う。 In the above, when integrally joining the shaft portion 1 made of a heat-resistant brittle material and the intermediate member 3 made of a heat-resistant metal, the intermediate member 3 is attached to the already fired processed or unprocessed shaft portion 1. is compression molded and sintered. At this time, sintering shrinkage occurs in the intermediate member 3, but the stress acting on the shaft portion 1 is compressive stress, and there is no problem in terms of material strength. Further, shrinkage also occurs when the shaft portion 1 is fired, but if the shrinkage rates of the heat-resistant brittle material and the heat-resistant metal during firing and sintering are almost the same, then after the shaft portion 1 is formed, the intermediate member 3 is The intermediate member 3 may be formed and fired and sintered at the same time, and in either case, the intermediate member 3 is
Performs mechanical processing such as screw processing and polishing.
以上のように、本考案に係る回転体と駆動軸の
接合部構造は、セラミツクのような耐熱脆性材料
から成る回転体の軸部の小径の中央部から大径の
軸端部にかけて、上記回転体とほぼ同一の膨張係
数を有する焼結合金等の耐熱性金属から成る中間
部材が、回転体の軸部に密着した状態で被着さ
れ、上記中間部材は金属製の駆動軸に接合された
構成とされているので、高温になつても駆動軸の
動力を回転体に支障なく的確に伝達することがで
きる。また、上記中間部材には、上記回転体の軸
部の大径の軸端部を軸部の小径の中央部側に押圧
する押圧手段が付設されているので、膨張係数の
差により、仮に回転体の軸部と中間部材との間に
緩みが生じても、中間部材に対する回転体軸部の
密着が維持されて回転体ががたつくようなことは
なく、しかも小径の中央部と大径の軸端部の間を
テーパに構成して回転体の芯ずれを防止すること
が容易で、回転体の回転がより円滑になる効果が
あり、高温ガスの送風機等に対して幅広く適用で
きる回転体と駆動軸の接合部構造を提供すること
ができる。 As described above, the joint structure between the rotating body and the drive shaft according to the present invention is such that the shaft of the rotating body made of a heat-resistant brittle material such as ceramic is connected from the small diameter center to the large diameter shaft end. An intermediate member made of a heat-resistant metal such as a sintered alloy having almost the same coefficient of expansion as the rotating body is adhered to the shaft of the rotating body, and the intermediate member is joined to a metal drive shaft. Because of this configuration, the power of the drive shaft can be accurately transmitted to the rotating body without any problem even when the temperature is high. Further, the intermediate member is provided with a pressing means for pressing the large-diameter shaft end of the shaft of the rotating body toward the small-diameter center of the shaft, so that due to the difference in expansion coefficients, the rotation Even if loosening occurs between the shaft of the body and the intermediate member, the rotor's shaft remains in close contact with the intermediate member and the rotor does not wobble. The tapered structure between the ends makes it easy to prevent misalignment of the rotating body, which has the effect of making the rotation of the rotating body smoother, making it a rotating body that can be widely applied to high-temperature gas blowers, etc. A drive shaft joint structure can be provided.
図は本考案の一実施例を示すもので、第１図は
断面図、第２図は第１図の−矢視断面図であ
る。
１……回転体の軸部、２……受け部材、３……
中間部材、４……押し金具、５……バネ（押圧手
段）、６……駆動軸。
The drawings show an embodiment of the present invention, in which FIG. 1 is a sectional view, and FIG. 2 is a sectional view taken along the - arrow in FIG. 1... Shaft of rotating body, 2... Receiving member, 3...
Intermediate member, 4... Push metal fitting, 5... Spring (pressing means), 6... Drive shaft.
Claims (1)
体の軸部の小径の中央部から大径の軸端部にかけ
て、上記回転体とほぼ同一の膨張係数を有する焼
結合金等の耐熱性金属から成る中間部材が、回転
体の軸部に密着した状態で被着され、上記中間部
材には、上記回転体の軸部の軸端部を軸部の中央
部側に押圧する押圧手段が付設されるとともに、
上記中間部材は金属製の駆動軸に接合されてなる
ことを特徴とする回転体と駆動軸の接合部構造。 A middle part made of a heat-resistant metal such as a sintered alloy that has almost the same coefficient of expansion as the rotating body, from the center of the small diameter of the shaft of the rotating body made of a heat-resistant brittle material such as ceramic to the end of the large diameter shaft. The member is attached in close contact with the shaft of the rotating body, and the intermediate member is provided with a pressing means for pressing the shaft end of the shaft of the rotating body toward the center of the shaft. ,
A joint structure between a rotating body and a drive shaft, characterized in that the intermediate member is joined to a metal drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6998683U JPS59175603U (en) | 1983-05-11 | 1983-05-11 | Joint structure of rotating body and drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6998683U JPS59175603U (en) | 1983-05-11 | 1983-05-11 | Joint structure of rotating body and drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59175603U JPS59175603U (en) | 1984-11-24 |
| JPS6347601Y2 true JPS6347601Y2 (en) | 1988-12-08 |
Family
ID=30200135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6998683U Granted JPS59175603U (en) | 1983-05-11 | 1983-05-11 | Joint structure of rotating body and drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59175603U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0540312Y2 (en) * | 1986-08-08 | 1993-10-13 | ||
| CN104048016B (en) * | 2013-03-12 | 2019-03-12 | 德昌电机(深圳)有限公司 | Torque transmission device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832102B2 (en) * | 1975-12-06 | 1983-07-11 | クスミデンキ カブシキガイシヤ | heat seal couch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150801U (en) * | 1980-04-11 | 1981-11-12 | ||
| JPS5832102U (en) * | 1981-08-28 | 1983-03-02 | 三菱重工業株式会社 | Ceramics rotor |
-
1983
- 1983-05-11 JP JP6998683U patent/JPS59175603U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832102B2 (en) * | 1975-12-06 | 1983-07-11 | クスミデンキ カブシキガイシヤ | heat seal couch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59175603U (en) | 1984-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5925788B2 (en) | Adiabatic turbine coupling | |
| JPS60101201A (en) | Joining structure in turbine shaft | |
| JPH0415361B2 (en) | ||
| JP4625035B2 (en) | Shaft assembly | |
| JPS5827801A (en) | Connector apparatus of ceramic blade wheel | |
| JPS6347601Y2 (en) | ||
| JPH03505246A (en) | high temperature turbine engine structure | |
| JPS6325282Y2 (en) | ||
| JPS58178900A (en) | Impellor made of ceramics | |
| JPS58214018A (en) | Power transmission method | |
| JPH0351319Y2 (en) | ||
| JPH09272021A (en) | Manufacture of turbine rotor | |
| JPH0352962Y2 (en) | ||
| JP2650372B2 (en) | Method of joining ceramic member and metal member | |
| JPS6177682A (en) | Structure for bonding ceramic and metal | |
| JPS6346769Y2 (en) | ||
| JPH037368Y2 (en) | ||
| JPH0218242Y2 (en) | ||
| JPH0217123Y2 (en) | ||
| JPH0543289Y2 (en) | ||
| JPS6278402A (en) | Ceramic turbo rotor | |
| JPS6325281Y2 (en) | ||
| JP2550802Y2 (en) | Rotor for screw compressor | |
| JPH0351321Y2 (en) | ||
| JPS6231631Y2 (en) |