JPH0543074Y2 - - Google Patents
Info
- Publication number
- JPH0543074Y2 JPH0543074Y2 JP1990002918U JP291890U JPH0543074Y2 JP H0543074 Y2 JPH0543074 Y2 JP H0543074Y2 JP 1990002918 U JP1990002918 U JP 1990002918U JP 291890 U JP291890 U JP 291890U JP H0543074 Y2 JPH0543074 Y2 JP H0543074Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- pipe
- ceramic
- layer
- sprayed
- 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
- 239000002184 metal Substances 0.000 claims description 71
- 229910052751 metal Inorganic materials 0.000 claims description 71
- 239000000919 ceramic Substances 0.000 claims description 50
- 239000010410 layer Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 23
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001347 Stellite Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、粉体輸送用配管等に用いる金属被覆
セラミツクパイプと金属管との接続構造に関する
ものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connection structure between a metal-coated ceramic pipe and a metal pipe used for powder transportation piping, etc.
（従来の技術）
粉体輸送用配管において粉体との接触により摩
耗が著しい部位の耐用性向上を目的として、従
来、ステンレス鋼、ステライト等の耐摩耗性金属
製パイプの使用あるいは金属製パイプの内面にセ
ラミツクをライニングして使用している。(Prior art) In order to improve the durability of parts of powder transportation piping that are subject to significant wear due to contact with powder, conventional methods have included the use of wear-resistant metal pipes such as stainless steel and Stellite, or metal pipes. The inner surface is lined with ceramic.
金属層の内層にセラミツク層を設ける方法とし
て、１．焼嵌め法（例えば、特開平１−119572号
公報）、２．接着剤による固定法、あるいは３．
自己燃焼反応焼結を利用した方法があり、パイプ
径が大きい場合は４．セラミツク焼成タイルを接
着剤により貼り付ける等の方法がある。このう
ち、小径金属パイプの内層にセラミツク層を設け
る方法としては１．焼嵌め法、２．接着剤による
固定法がある。 As a method for providing a ceramic layer inside a metal layer, 1. Shrink fitting method (for example, JP-A-1-119572), 2. Fixing with adhesive, or 3.
There is a method using self-combustion reaction sintering, and if the pipe diameter is large, 4. There are methods such as pasting ceramic fired tiles with adhesive. Among these methods, 1. is a method for providing a ceramic layer on the inner layer of a small diameter metal pipe. Shrink fitting method, 2. There is a fixing method using adhesive.
焼嵌め法は各パイプの熱間線膨張係数差を応用
して行なうため、焼嵌め効果を増すためには、寸
法公差を厳密に管理する必要がある。それにもか
かわらず、使用温度は焼嵌め温度以下に限定され
る。 Since the shrink fitting method is performed by applying the difference in hot linear expansion coefficient of each pipe, dimensional tolerances must be strictly controlled in order to increase the shrink fitting effect. Nevertheless, the operating temperature is limited to below the shrink-fit temperature.
接着剤による固定法は接着剤を接着層に充分充
填するのは技術上困難であり、特に長尺パイプの
場合顕著である。さらに、使用温度も限定され、
熱間における信頼性は必ずしも優れていない。 In the fixing method using an adhesive, it is technically difficult to sufficiently fill the adhesive layer with the adhesive, and this is particularly noticeable in the case of long pipes. Furthermore, the operating temperature is also limited.
Reliability in hot conditions is not necessarily excellent.
自己燃焼反応焼結を利用した方法は、原理上、
曲管部には適用し難く生成したセラミツク層は必
ずしも緻密質ではなく、耐摩耗性に対する信頼性
は低い。セラミツク焼成タイルを接着剤により貼
り付ける方法は接着剤の施工技術の影響を受けや
すく、またタイルとタイル間の接合部で摩耗が進
行しやすい傾向がある。 In principle, the method using self-combustion reaction sintering
The ceramic layer produced is not necessarily dense and has low reliability in terms of wear resistance, which is difficult to apply to curved pipe parts. The method of attaching fired ceramic tiles with an adhesive is easily affected by the adhesive application technique, and there is a tendency for wear to progress easily at the joints between the tiles.
さらに、焼嵌め法、接着剤による固定法、自己
燃焼反応焼結を利用した方法の適用は、直管パイ
プに限定される。また、セラミツク焼成タイルの
接着剤による貼り付け法は作業上、小径パイプ内
面への施工には限界がある。 Furthermore, the application of the shrink fitting method, the adhesive fixing method, and the method using self-combustion reaction sintering is limited to straight pipes. Additionally, the method of attaching fired ceramic tiles with adhesive has limitations in its application to the inner surface of small-diameter pipes due to operational reasons.
以上述べた方法はいずれも技術的に精度あるい
は複雑な工程が必要である。 All of the methods described above require technical precision or complicated steps.
従つて、小径サイズあるいは曲管形状の金属パ
イプ内層に比較的容易にセラミツク層を設けるた
めの信頼性の高い方法が望まれている。特に小径
サイズの曲管内側へのセラミツク層施工方法に関
する要求が大きい。 Therefore, a highly reliable method for relatively easily providing a ceramic layer on the inner layer of a small-diameter or curved metal pipe is desired. In particular, there is a strong demand for a method of applying a ceramic layer to the inside of small-diameter curved pipes.
この課題を解決するために本出願人は先に実願
平１−133034号により、セラミツクパイプを保持
装置にセツトし回転させた状態で、金属線材ある
いは粉末をフレーム溶射ガンを用いてセラミツク
パイプ外周に溶射金属層を設けた金属被覆セラミ
ツクパイプを提案した。 In order to solve this problem, the present applicant previously disclosed in Utility Application No. 1-133034 that while the ceramic pipe is set in a holding device and rotated, metal wire or powder is applied to the outer periphery of the ceramic pipe using a flame spray gun. We proposed a metal-coated ceramic pipe with a sprayed metal layer.
（考案が解決しようとする課題）
ところが、この種のセラミツクの外周に溶射金
属層を設けた２重管に、他の金属配管に設けられ
た金属製フランジを接続しようとしても、この溶
射金属被覆層は、一般に脆性材料で、かつ非溶接
性であるので溶接できないという難点があり、溶
射金属被覆セラミツクパイプの用途、利用分野の
拡大が著しく制限されたものであつた。(Problem to be solved by the invention) However, when trying to connect a metal flange provided on another metal pipe to a double pipe with a sprayed metal layer provided on the outer periphery of this type of ceramic, this sprayed metal coating The layer is generally a brittle material and non-weldable, so it has the disadvantage that it cannot be welded, which has severely limited the use and expansion of the fields of use of thermal sprayed metal coated ceramic pipes.
本考案は上記の点に鑑み、溶射金属被覆セラミ
ツクパイプ３と金属管との新規な接続構造を提供
するものである。 In view of the above points, the present invention provides a new connection structure between the thermal sprayed metal-coated ceramic pipe 3 and the metal pipe.
（課題を解決するための手段）
本考案は、セラミツクパイプの端部外周に接続
すべき金属管の端部を被挿入し、上記セラミツク
パイプ外周および接合すべき金属管の外周に連続
した溶射金属層を形成してなる、溶射金属被覆セ
ラミツクパイプと金属管との接続構造において、
金属管１の端部には金属溶射層を設けるための小
径部２を有するとともに、小径部２側の内側には
セラミツクパイプ３との嵌合部４を有する金属管
１と、セラミツクパイプ３を嵌合した後、金属管
１の小径部２およびセラミツクパイプ３の外周
に、連続した金属溶射層５を形成してなる、溶射
金属被覆セラミツクパイプと金属管との接続構造
を得るものである。(Means for Solving the Problems) The present invention provides a method for inserting the end of a metal pipe to be connected to the outer periphery of the end of a ceramic pipe, and continuously spraying metal onto the outer periphery of the ceramic pipe and the outer periphery of the metal pipe to be joined. In the connection structure between a sprayed metal-coated ceramic pipe and a metal pipe formed by forming a layer,
The metal tube 1 has a small diameter part 2 at the end thereof for providing a metal spray layer, and has a fitting part 4 with a ceramic pipe 3 on the inside of the small diameter part 2, and the ceramic pipe 3. After fitting, a continuous metal sprayed layer 5 is formed on the small diameter portion 2 of the metal tube 1 and the outer periphery of the ceramic pipe 3, thereby obtaining a connection structure between the sprayed metal coated ceramic pipe and the metal pipe.
（実施例）
第１図から第３図は本考案の接続構造を形成す
るための工程説明図、第４図は溶射装置の説明図
である。(Example) FIGS. 1 to 3 are process explanatory diagrams for forming the connection structure of the present invention, and FIG. 4 is an explanatory diagram of a thermal spraying apparatus.
第１図は、セラミツクパイプの端部外周に接続
すべき金属管の端部を挿入した構造を示す。金属
管１の一端には金属溶射層を設けるための小径部
２を有し、小径部２側の内側にはセラミツクパイ
プ３との嵌合部４がある。小径部２の長さＬは金
属溶射層を設けたセラミツクパイプを使用する際
に、嵌合した金属管１とセラミツクパイプ３が軸
方向の外力によつて、長さ方向に外れないように
金属溶射層と接合するに充分な接合面積を得られ
る長さとする。 FIG. 1 shows a structure in which the end of a metal pipe to be connected is inserted into the outer periphery of the end of a ceramic pipe. One end of the metal tube 1 has a small diameter portion 2 for providing a metal spray layer, and a fitting portion 4 with a ceramic pipe 3 is provided inside the small diameter portion 2 side. The length L of the small diameter portion 2 is set to the length L of the metal to prevent the fitted metal pipe 1 and ceramic pipe 3 from coming apart in the length direction due to external force in the axial direction when using a ceramic pipe provided with a metal sprayed layer. The length should be such that a sufficient bonding area can be obtained for bonding with the sprayed layer.
また、嵌合部４の嵌合長さＭは、金属溶射層を
設けたセラミツクパイプを使用する際に外力によ
つて嵌合部に生ずる曲げ力に耐えるのに充分な長
さとする。 Further, the fitting length M of the fitting part 4 is made long enough to withstand the bending force generated on the fitting part by an external force when using a ceramic pipe provided with a metal sprayed layer.
さらに、嵌合部の嵌合寸法、つまり金属管の内
径とセラミツクパイプの外径も上記の曲げ力に耐
えるに充分な寸法とする。 Furthermore, the fitting dimensions of the fitting portion, that is, the inner diameter of the metal tube and the outer diameter of the ceramic pipe, are also made to be of sufficient size to withstand the above bending force.
なお、第２図に示すように、嵌合した金属管１
とセラミツクパイプ３が、軸方向の外力によつて
長さ方向に生ずる引張力によつて外れないように
するため、小径部の外径を端部が大きいテーパ形
状２′としてもよく、あるいは表面に凹凸を施し
てもよい。 In addition, as shown in FIG. 2, the fitted metal tube 1
In order to prevent the ceramic pipe 3 from coming off due to the tensile force generated in the longitudinal direction due to an external force in the axial direction, the outer diameter of the small diameter portion may be tapered 2' with a large end, or the surface It is also possible to apply unevenness to the surface.
第３図は、第１図および第２図に示した嵌合を
行なつた後、その金属管１の小径部２およびセラ
ミツクパイプ３の外周に、フレーム溶射ガンを用
いて溶射肉盛して、連続した金属溶射層５を設け
た構造を示したものである。 Figure 3 shows that after the fitting shown in Figures 1 and 2 has been carried out, the small diameter part 2 of the metal tube 1 and the outer periphery of the ceramic pipe 3 are coated by thermal spraying using a flame spray gun. , which shows a structure in which a continuous metal sprayed layer 5 is provided.
なお、小径部２の外層の金属溶射層５の厚さは
上記軸方向の外力および曲げ力に耐える寸法とす
る。 Note that the thickness of the metal sprayed layer 5 as the outer layer of the small diameter portion 2 is set to a size that can withstand the above-mentioned external force in the axial direction and bending force.
最後に、この溶射肉盛した金属溶射層５の余肉
を切削加工し、必要とする外形に仕上げる。金属
溶射層５の形成は第４図の装置によつて行なうこ
とができる。 Finally, the excess thickness of the sprayed metal layer 5 is cut to give the desired external shape. The metal spray layer 5 can be formed using the apparatus shown in FIG.
回転装置６に取り付けて430r.p.m.で回転させ
ながら、フレーム溶射ガン７を用いてセラミツク
パイプ３および金属管の小径部２の外面に溶射金
属材料８を溶射した。 The flame spraying metal material 8 was sprayed onto the outer surfaces of the ceramic pipe 3 and the small diameter portion 2 of the metal tube using a flame spray gun 7 while attached to a rotating device 6 and rotating at 430 rpm.
フレーム溶射ガン７は移動装置９上に取り付
け、セラミツクパイプ３の長さ方向と平行に往復
移動させた。さらに溶射中、エアノズル１０によ
り金属溶射層５をエア冷却した。 The flame spray gun 7 was mounted on a moving device 9 and moved back and forth parallel to the length direction of the ceramic pipe 3. Furthermore, during the thermal spraying, the metal sprayed layer 5 was cooled with air using the air nozzle 10.
この考案の実施例は上記の通りであり、接続す
べき金属管１の端部をセラミツクパイプ３を、長
さＭだけセラミツクパイプ３の端部外周に被挿入
しているので、両者１，３の嵌合部に生じる曲げ
に充分耐えるものである。 The embodiment of this invention is as described above, and since the end of the metal pipe 1 to be connected is inserted into the outer periphery of the end of the ceramic pipe 3 by a length M, both 1, 3 It is sufficiently resistant to bending that occurs at the fitting part.
また、接続すべき金属管１の端部外周に、充分
な長さＬの金属溶射層を設ける部分（小径部２）
を有していて、この部分２とセラミツクパイプ３
の外周全長にわたつて、連続した金属溶射層５を
形成することにより、両者１，３が軸方向に外れ
ることのない接合強度が得られると共に、セラミ
ツクパイプ３の表面に溶射金属層５が形成できる
ものである。 Also, a portion (small diameter portion 2) where a metal spray layer of sufficient length L is provided on the outer periphery of the end of the metal pipe 1 to be connected.
This part 2 and the ceramic pipe 3
By forming a continuous metal sprayed layer 5 over the entire outer circumference of the ceramic pipe 3, a bonding strength that prevents both 1 and 3 from coming off in the axial direction is obtained, and the sprayed metal layer 5 is formed on the surface of the ceramic pipe 3. It is possible.
よつて本考案により、充分な接続強度を有する
金属溶射被覆セラミツクパイプと金属管との接合
構造が得られるものである。 Therefore, the present invention provides a joining structure between a metal spray-coated ceramic pipe and a metal pipe that has sufficient connection strength.
（考案の効果）
本考案の溶射金属被覆セラミツクパイプと金属
管との接続構造によれば、金属管とセラミツクパ
イプとの嵌合部および金属管とセラミツクパイプ
上に連続して形成する溶射金属層により、曲げお
よび軸方向の引張りに対して充分に耐える接続構
造が得られるものであり、溶射金属被覆セラミツ
クパイプの用途、利用分野が拡大できるものであ
る。(Effect of the invention) According to the connection structure between a sprayed metal-coated ceramic pipe and a metal pipe of the present invention, a sprayed metal layer is formed continuously at the fitting part between the metal pipe and the ceramic pipe and on the metal pipe and the ceramic pipe. As a result, a connection structure that can sufficiently withstand bending and axial tension can be obtained, and the applications and fields of use of thermal sprayed metal-coated ceramic pipes can be expanded.
第１図〜第３図は本考案の接続構造の形成工程
の説明図、第４図は本考案の金属溶射装置の説明
図である。
１……金属管、２……小径部、３……セラミツ
クパイプ、４……嵌合部、５……溶射金属層。
1 to 3 are explanatory diagrams of the process of forming the connection structure of the present invention, and FIG. 4 is an explanatory diagram of the metal spraying apparatus of the present invention. DESCRIPTION OF SYMBOLS 1... Metal tube, 2... Small diameter part, 3... Ceramic pipe, 4... Fitting part, 5... Sprayed metal layer.
Claims (1)
管の端部を被挿入し、上記セラミツクパイプ外周
および接合すべき金属管の外周に連続した溶射金
属層を形成してなる溶射金属被覆セラミツクパイ
プと金属管との接続構造において、金属管１の端
部には金属溶射層を設けるための小径部２を有す
るとともに、小径部２側の内側にはセラミツクパ
イプ３との嵌合部４を有する金属管１と、セラミ
ツクパイプ３を嵌合した後、金属管１の小径部２
およびセラミツクパイプ３の外周に、連続した金
属溶射層５を形成してなることを特徴とする溶射
金属被覆セラミツクパイプと金属管との接続構
造。 A sprayed metal-coated ceramic pipe and a metal, in which the end of a metal pipe to be connected is inserted into the outer periphery of the end of the ceramic pipe, and a continuous sprayed metal layer is formed on the outer periphery of the ceramic pipe and the outer periphery of the metal pipe to be joined. In the connection structure with the pipe, the metal pipe 1 has a small diameter part 2 at the end thereof for providing a metal sprayed layer, and has a fitting part 4 with a ceramic pipe 3 on the inside of the small diameter part 2. 1 and the ceramic pipe 3, the small diameter part 2 of the metal pipe 1 is fitted.
and a connection structure between a sprayed metal-coated ceramic pipe and a metal pipe, characterized in that a continuous metal sprayed layer 5 is formed on the outer periphery of the ceramic pipe 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990002918U JPH0543074Y2 (en) | 1990-01-17 | 1990-01-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990002918U JPH0543074Y2 (en) | 1990-01-17 | 1990-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0396330U JPH0396330U (en) | 1991-10-02 |
| JPH0543074Y2 true JPH0543074Y2 (en) | 1993-10-29 |
Family
ID=31506763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990002918U Expired - Lifetime JPH0543074Y2 (en) | 1990-01-17 | 1990-01-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543074Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180009764A (en) * | 2015-05-19 | 2018-01-29 | 바스프 에스이 | Airtight heat-permeable multi-layer ceramic composite tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325241A (en) * | 1975-12-08 | 1978-03-08 | Commissariat Energie Atomique | Method and device for sealing ceramic member |
-
1990
- 1990-01-17 JP JP1990002918U patent/JPH0543074Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325241A (en) * | 1975-12-08 | 1978-03-08 | Commissariat Energie Atomique | Method and device for sealing ceramic member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180009764A (en) * | 2015-05-19 | 2018-01-29 | 바스프 에스이 | Airtight heat-permeable multi-layer ceramic composite tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0396330U (en) | 1991-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7807273B2 (en) | Alloy-coated boiler part and method of welding self-fluxing alloy-coated boiler part | |
| JPH0543074Y2 (en) | ||
| JP2001287004A (en) | Composite tube and manufacturing method therefor | |
| EP1685345B1 (en) | Pipe joint between metallic pipes and method of forming such a pipe joint | |
| RU2116549C1 (en) | Method of permanent connection of pipes with protected inner surfaces | |
| JPH08357Y2 (en) | Ceramic interpolating metal pipe | |
| JPH0342116A (en) | Manufacture of double tube | |
| JP3515045B2 (en) | Bend tube and method of manufacturing the same | |
| JPH0433781A (en) | Resistant welded steel tube manufactured with surface treated steel strip such as hot-dip galvanized steel strip as raw material and its manufacture | |
| JPS61222964A (en) | Manufacture of ceramics/metal joint | |
| RU2272215C1 (en) | Method of joining pipes with inner anticorrosive coating | |
| JP2000271639A (en) | Plated steel tube and its manufacture | |
| JP3027453U (en) | Iron pipe | |
| US6805281B1 (en) | Method of melting material between telescopingly engaged elements | |
| JPS62186972A (en) | Formation of coating layer on inside surface of pipe | |
| JPH0229740B2 (en) | MITSUCHAKUSEINISUGURETAYOSHASONOKEISEIHOHO | |
| JPS6310805B2 (en) | ||
| JPH03138075A (en) | Manufacture of inside coated tube utilizing thermal-sprayed joining | |
| JPH067265Y2 (en) | Ceramic coating tube | |
| JPH08216254A (en) | Lining of metal pipe | |
| AU2004291562B2 (en) | Method of corrosion protection at a welded pipe joint and resulting joint | |
| RU2200269C1 (en) | Method for joining tubes having inner cement-sand coating | |
| JP2003013196A (en) | Metal pipe | |
| JPS63159035A (en) | Manufacture of fiber reinforced resin tube with reinforced inner face | |
| JPH0886391A (en) | Laminated bent pipe |