JPS59190510A - Clamping tool made of ceramic - Google Patents
Clamping tool made of ceramicInfo
- Publication number
- JPS59190510A JPS59190510A JP6502783A JP6502783A JPS59190510A JP S59190510 A JPS59190510 A JP S59190510A JP 6502783 A JP6502783 A JP 6502783A JP 6502783 A JP6502783 A JP 6502783A JP S59190510 A JPS59190510 A JP S59190510A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- bolt
- nut
- superplastic
- fastener
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はボルト、ナツト等の締結具に係シ、特にセラミ
ックス製の締結具で必ってセラミック部材の締結に好適
な締結具に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to fasteners such as bolts and nuts, and particularly to fasteners made of ceramics and suitable for fastening ceramic members.
セラミック部材同士を結合する方法として、セラミック
ス製のボルトを用いてボルト締めする方法がある。しか
しながら周知の如くセラミックスは脆性材料でおるとこ
ろから強く締め過ぎたシ衝撃荷重がかかると局部的に応
力集中がおこｐねじ溝が欠損するという問題がある。藍
だセラミック部品は一般にその加工が容易ではなく、複
雑な形状のボルト等においては寸法精度が低いところか
ら、形成されたねじ溝もその寸法精度が低くそのために
上記の如き問題点が助長されるという欠点がある。As a method of joining ceramic members together, there is a method of bolting using ceramic bolts. However, as is well known, ceramics are brittle materials, so if they are tightened too strongly and an impact load is applied, there is a problem in that local stress concentration occurs and the thread grooves are damaged. Indigo ceramic parts are generally not easy to process, and the dimensional accuracy is low for bolts with complex shapes, and the thread grooves formed also have low dimensional accuracy, which exacerbates the problems mentioned above. There is a drawback.
本発明の目的は上記従来技術の欠点を解消し、確実かつ
強固な締結が可能とされるセラミックス裂の締結具を提
供することにある。An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art and to provide a ceramic cleft fastener that enables reliable and strong fastening.
この目的全達成するために本発明のセラミックス製締結
具は、少なくともねじ溝の部分に室温より高い温度で軟
質となる物質を被装するようにしたものである。In order to achieve all of these objectives, the ceramic fastener of the present invention is such that at least the thread groove portion is coated with a material that becomes soft at temperatures higher than room temperature.
本発明に係る締結具を用いて部材を締結するには、まず
該締結具全所定の温度範囲に加熱し、ねじ溝などに被装
された物質を軟かくしておく。そしてこの加熱状態で締
結し、その後冷却する。そうすると被装物質も冷却によ
って硬くなり、堅牢な結合が行なわれるようになる。甘
だ、締め付は中は被装物質が軟化しておシ、被締結部材
と締結具との間隙に満遍なくゆきわたり、冷却・硬化後
には被締結部材と締結具とは緊密に一体となる。In order to fasten members using the fastener according to the present invention, first, the entire fastener is heated to a predetermined temperature range to soften the material coated in the thread groove or the like. Then, it is fastened in this heated state, and then cooled. Then, the covering material also becomes hard due to cooling, and a strong bond is formed. That's not good. During tightening, the covering material softens and spreads evenly over the gap between the fastened member and fastener, and after cooling and hardening, the fastened member and fastener become tightly integrated. .
そしてこのために締結部に衝撃荷重が負荷されても締結
具に則して局部的な応力集中の生ずることが防止され、
ねじ溝の欠損などのおそれも悉く解消され、かつ結合強
度も大きく向上されるのである。Therefore, even if an impact load is applied to the fastening part, local stress concentration is prevented from occurring in the fastener.
The fear of thread groove breakage is completely eliminated, and the bonding strength is greatly improved.
このような、室温よりも高い温度範囲において軟質とな
る物質としては超塑性合金が好適であるが、その他にも
結合時の加温温度範囲で軟質の合金るるいはグラスチッ
ク、ガスケット等でもよい。Superplastic alloys are suitable as materials that become soft in a temperature range higher than room temperature, but other materials such as alloys, plastics, gaskets, etc. that are soft in the heating temperature range during bonding may also be used. .
第１表に代表的な超塑性金属の組成、伸び及び超塑性を
示す温度範囲を示す。Table 1 shows the composition, elongation, and temperature range showing superplasticity of typical superplastic metals.
以下図面に示す実施例を参照して本発明を更に詳細に説
明する。The present invention will be explained in more detail below with reference to embodiments shown in the drawings.
第１図は本発明の実施例に係るボルトの側面図である。FIG. 1 is a side view of a bolt according to an embodiment of the present invention.
このボルトｌのねじ部１ａ及びボルトの頭の裏面側１ｂ
には超塑性合金がコーティング又は２イニングされてい
る。また第２図は本発明の実施例に係るナツトの断面図
であり、このナツト２のねじ溝２ａにも同様に超塑性合
金のコーティング又はライニングが施されている。なお
ボルト１、ナツト２はそれぞれセラミックス製である。The threaded part 1a of this bolt l and the back side 1b of the bolt head
is coated or coated with superplastic alloy. FIG. 2 is a sectional view of a nut according to an embodiment of the present invention, and the thread groove 2a of this nut 2 is also coated or lined with superplastic alloy. Note that the bolt 1 and nut 2 are each made of ceramics.
超塑性材料をライニング又はコーティングする方法とし
てはイ虚々のものがあシ、超塑性合金全コーティングす
る方法としては電気化学的方法であるメッキによるもの
、溶射によるもの、ブラスト圧着法によるもの等が考え
られる。この内溶射法とは高温炎（例えば、酸素プロパ
ン炎）−！たけ電気的なアークを利用して合金を溶かし
、これを圧縮空気で微粒化し、素材に吹き付は接着させ
る方法である。またブラスト圧着法とは素材表面に超塑
性材料粉末をブラスト加工し、その際の超塑性流動を利
用し、本粉末を迅速に圧着被覆して行なうものである。There are many methods for lining or coating superplastic materials, but methods for fully coating superplastic alloys include electrochemical plating, thermal spraying, and blast bonding. Conceivable. This internal thermal spraying method is a high-temperature flame (for example, an oxygen-propane flame). This method uses an electric arc to melt the alloy, atomizes it with compressed air, and then bonds it to the material by spraying it. The blast bonding method is a method in which a superplastic material powder is blasted onto the surface of a material, and the superplastic flow at that time is utilized to quickly cover the material with the powder by pressure bonding.
コーティングする場所は接合する部材と結合用ボルト、
ナツトの接触場所のみに行なっても良いし、結合用ボル
ト、ナツトの全体に一体的に行なっても良い。The areas to be coated are the parts to be joined and the joining bolts,
It may be applied only to the contact area of the nut, or it may be applied to the entire joint bolt and nut.
第３図はこのボルトｌ、ナツト２を用いてセラミック板
３．３同十全接合した状態を示す断面図である。部ちセ
ラミック板３．３に孔を開けておきボルト１を差し通し
ナツト２を締結する。この締結に除しては、ナツト２及
びセラミック板３．３を所定の温度に加熱しておくこと
が必要である。FIG. 3 is a sectional view showing a state in which the ceramic plates 3 and 3 are fully joined using the bolts 1 and nuts 2. A hole is made in the ceramic plate 3.3, and the bolt 1 is inserted and the nut 2 is fastened. For this fastening, it is necessary to heat the nut 2 and the ceramic plate 3.3 to a predetermined temperature.
即ちこのように加熱するとナツト２とセラミック板３と
が熱膨張しボルト１の差し込み及び締め込みが容易にな
ると共に表面にコーティングされた超塑性合金が超塑性
状態を示すようになり両者間の間隙全均一に完全に密着
させるようになり、その後温度が下がるとナツト２がボ
ルト１に強く係合するようになる。また逆にナツト２を
外すときにはこのナツト２を所定温度に加熱するように
すれば容易にナツト２を取り外すことができる。なおナ
ツト２を加熱する際には、加熱温度？超塑性合金が最も
変形し易くなる温度に合わせることが必要であシ、この
ことがセラミック同士の板触面での局部的な応力集中を
防ぎ均一に間をうめる役割をする。なお第１図のボルト
１においてはボルト頭の裏面側１ｂにも超塑性合金がラ
イニングされているので、第３図の如く接合に使用した
場合にはセラミック板３の表面とボルト頭の裏面側１ｂ
とのあたりが軟かに均一になるという効果も奏される。That is, when heated in this way, the nut 2 and the ceramic plate 3 thermally expand, making it easier to insert and tighten the bolt 1, and the superplastic alloy coated on the surface becomes superplastic, reducing the gap between them. When the temperature is lowered, the nut 2 comes to be strongly engaged with the bolt 1. Conversely, when removing the nut 2, the nut 2 can be easily removed by heating the nut 2 to a predetermined temperature. When heating Nut 2, please check the heating temperature. It is necessary to adjust the temperature to the temperature at which the superplastic alloy is most easily deformed, and this serves to prevent local stress concentration at the contact surfaces between the ceramic plates and fill the gap uniformly. In addition, in the bolt 1 shown in Fig. 1, the back side 1b of the bolt head is also lined with superplastic alloy, so when used for joining as shown in Fig. 3, the surface of the ceramic plate 3 and the back side of the bolt head are lined with superplastic alloy. 1b
It also has the effect of making the contact soft and uniform.
第４図はボルト１全用いてセラミック板４と肉厚の大き
いセラミック部材５とを結合した状態金示す断面図であ
る。即ちセラミック板４とセラミック部材５にぞれぞれ
透孔４ａ、ねじ孔５ａを設けておきボルト１全締め込ん
でいる。本実施例においてもボルト１とセラミック部材
５とが強固に接合されるとともにセラミック板４とボル
ト１のボルト頭の裏面側１ｂとのあたりが均一に軟かに
なる。なお本実施例においても、ボルト１を締め込むに
際してはセラミック部材５を予じめライニングを行った
超塑性合金の超塑性挙動を示す温度範囲に加熱するよう
にしておけば締め込みが容易になるとともに接触面では
超塑性挙動を示し局部応力の発生が防止出来セラミック
部材５の温度が下がったあとには結合強度が高められる
という効果がある。またセラミック板４に加熱しておけ
ばボルト１の挿通も容易となる。FIG. 4 is a sectional view showing a state in which the ceramic plate 4 and the thick ceramic member 5 are joined together using all the bolts 1. That is, a through hole 4a and a screw hole 5a are provided in the ceramic plate 4 and the ceramic member 5, respectively, and the bolt 1 is fully tightened. In this embodiment as well, the bolt 1 and the ceramic member 5 are firmly joined, and the contact between the ceramic plate 4 and the back side 1b of the bolt head of the bolt 1 is uniformly softened. In this embodiment as well, when tightening the bolt 1, tightening can be facilitated by heating the ceramic member 5 to a temperature range that exhibits the superplastic behavior of the superplastic alloy that has been lined in advance. At the same time, the contact surface exhibits superplastic behavior, preventing the generation of local stress and increasing the bonding strength after the temperature of the ceramic member 5 has decreased. Further, if the ceramic plate 4 is heated, the bolt 1 can be inserted easily.
なお本実施例においてはセラミック部材５に形成された
ねじ孔５ａのねじ溝にも超塑性合金をライニングしてお
くようにしてもよい。In this embodiment, the thread groove of the threaded hole 5a formed in the ceramic member 5 may also be lined with a superplastic alloy.
上記各実施例においてはボルト１、ナツト２には超塑性
合金がライニングされているが、これはその他の所定の
温度範囲において軟質となる金属、プラスチック、るる
いはガスケット等でもよい。In each of the above embodiments, the bolt 1 and nut 2 are lined with a superplastic alloy, but this may be made of other metals, plastics, lubrication, gaskets, etc. that become soft within a predetermined temperature range.
また本発明においてはボルト、ナツト等全構成するセラ
ミックスの材質は特に限定されるものではなく、各種の
酸化物、窒化物、炭化物あるいはこれらを組み合わせた
組成のもの等が採用できることは明らかである。Furthermore, in the present invention, the material of the ceramics that make up the entire bolt, nut, etc. is not particularly limited, and it is clear that various oxides, nitrides, carbides, or compositions of combinations of these can be used.
以上の通シ本発明の締結具は少なくともそのねじ溝に所
定の温度範囲で軟質となる物質全被装せしめるようにし
たものであ多、結合強度が高いとともに衝撃荷重に対し
ても高い抵抗性を有しておシ、確実かつ強固な結合が可
能とされる。The fastener of the present invention as described above has at least its thread groove fully coated with a material that becomes soft within a predetermined temperature range, and has high bonding strength and high resistance to impact loads. This enables reliable and strong bonding.
第１図は本発明の実施例に係るボルトの側面図、第２図
は同ナツトの断面図、第３図はセラミック板３を接合し
た状態の断面図、第４図は異なる接合状態を示す断面図
である。
１・・・セラミック製ボルト、２・・・セラミック製ナ
ツト。−
代理人 鵜 沼 辰 之
（ほか１名）Fig. 1 is a side view of a bolt according to an embodiment of the present invention, Fig. 2 is a sectional view of the same nut, Fig. 3 is a sectional view of a state in which a ceramic plate 3 is joined, and Fig. 4 shows a different state of joining. FIG. 1...Ceramic bolt, 2...Ceramic nut. − Agent Tatsuyuki Unuma (and 1 other person)
Claims (3)
具において、少なくとも該ねじ溝に室温よシ高い温度範
囲にて該締結具よりも軟質となる物質全被装せしめてな
るセラミックス製締結具。(1) A ceramic fastener having a carved thread groove, at least the thread groove being entirely coated with a substance that becomes softer than the fastener in a temperature range higher than room temperature. .
求の範囲第１項記載のセラミックス製締結具。(2) The ceramic fastener according to claim 1, wherein the fastener is a bolt or a nut.
囲第１項又は第２項記載のセラミックス製締結具。(3) The ceramic fastener according to claim 1 or 2, wherein the soft material is a superplastic alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6502783A JPS59190510A (en) | 1983-04-13 | 1983-04-13 | Clamping tool made of ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6502783A JPS59190510A (en) | 1983-04-13 | 1983-04-13 | Clamping tool made of ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59190510A true JPS59190510A (en) | 1984-10-29 |
| JPS649484B2 JPS649484B2 (en) | 1989-02-17 |
Family
ID=13275077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6502783A Granted JPS59190510A (en) | 1983-04-13 | 1983-04-13 | Clamping tool made of ceramic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59190510A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09201U (en) * | 1996-11-19 | 1997-04-08 | 品川白煉瓦株式会社 | Lining structure of ultra-high temperature resistance furnace |
| JPH09209251A (en) * | 1996-01-26 | 1997-08-12 | Kanebo Ltd | Knitting of float pattern of stockings |
| JP2017122503A (en) * | 2015-10-21 | 2017-07-13 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | High fracture toughness ceramic support nut plate and gang channel |
| RU2713363C2 (en) * | 2015-10-21 | 2020-02-04 | Зе Боинг Компани | Reinforced with filamentary crystals ceramic threaded fasteners with high viscosity of destruction |
-
1983
- 1983-04-13 JP JP6502783A patent/JPS59190510A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209251A (en) * | 1996-01-26 | 1997-08-12 | Kanebo Ltd | Knitting of float pattern of stockings |
| JPH09201U (en) * | 1996-11-19 | 1997-04-08 | 品川白煉瓦株式会社 | Lining structure of ultra-high temperature resistance furnace |
| JP2017122503A (en) * | 2015-10-21 | 2017-07-13 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | High fracture toughness ceramic support nut plate and gang channel |
| RU2713363C2 (en) * | 2015-10-21 | 2020-02-04 | Зе Боинг Компани | Reinforced with filamentary crystals ceramic threaded fasteners with high viscosity of destruction |
| RU2715264C2 (en) * | 2015-10-21 | 2020-02-26 | Зе Боинг Компани | Ceramic support nut plate and multi-cavity holder with high viscosity of destruction |
| US11268560B2 (en) | 2015-10-21 | 2022-03-08 | The Boeing Company | Method of making whisker reinforced high fracture toughness ceramic threaded fasteners |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS649484B2 (en) | 1989-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6543670B2 (en) | Interface preparation for weld joints | |
| JP3380081B2 (en) | Valve seat | |
| CN1066807C (en) | Screw retention device | |
| US5554240A (en) | Thermally conductive joining method and joint | |
| JPS59190510A (en) | Clamping tool made of ceramic | |
| US4709621A (en) | Internal combustion engine piston and a method of producing the same | |
| JP4580762B2 (en) | Method for joining two or more components together | |
| JPS58128281A (en) | Diffusion bonding method of sintered hard alloy and steel | |
| JPH046679B2 (en) | ||
| JPS62216711A (en) | Method of joining ceramics and metal | |
| JPH11118705A (en) | Method and apparatus for testing adhesion strength of coating of thermal spraying | |
| JP2003340543A (en) | Method for joining aluminum or aluminum alloy material by self-piercing rivet | |
| CA2211471A1 (en) | Active brazing solder for brazing alumina-ceramic parts | |
| JPH05163078A (en) | Joint form made up of ceramic and metal | |
| CN212705152U (en) | Pressurization anchor clamps suitable for diffusion welding | |
| JPS6136181A (en) | Method of bonding ceramic member ot metal member | |
| JPS61192550A (en) | Ceramics metallic joining body | |
| JPH0372831B2 (en) | ||
| JPH069907B2 (en) | Method for producing composite material composed of graphite and metal | |
| JPH0210034B2 (en) | ||
| JPS61227975A (en) | Joined body of ceramic body and metal body | |
| JPS6396357A (en) | Metallic gasket | |
| JPH088807Y2 (en) | Refractory brick mold using super hard material | |
| JPS60204676A (en) | Zirconia-metal composite body | |
| JPS6277188A (en) | Solid phase joining method |