JPH0561506B2 - - Google Patents
Info
- Publication number
- JPH0561506B2 JPH0561506B2 JP23557586A JP23557586A JPH0561506B2 JP H0561506 B2 JPH0561506 B2 JP H0561506B2 JP 23557586 A JP23557586 A JP 23557586A JP 23557586 A JP23557586 A JP 23557586A JP H0561506 B2 JPH0561506 B2 JP H0561506B2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- insert fitting
- insert
- valve
- fitting
- 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
- 238000005219 brazing Methods 0.000 claims description 17
- 238000005304 joining Methods 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000001465 metallisation Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はボールバルブのセラミツクス製弁体
と、この弁体にステム棒の回転を伝達するインサ
ート金具とをろう付けする方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of brazing a ceramic valve body of a ball valve and an insert fitting for transmitting rotation of a stem rod to the valve body.
（従来の技術）
ボールバルブの弁体は常にバルブシートに摺接
するとともに流体に接触している。このため耐摩
耗性及び耐熱性に優れていることが要求され、最
近では弁体をセラミツクスにて形成しものが使用
されている。(Prior Art) The valve body of a ball valve is always in sliding contact with a valve seat and in contact with fluid. Therefore, it is required to have excellent wear resistance and heat resistance, and recently valve bodies made of ceramics have been used.
ところで弁体を回転させて流路を開閉するには
ステム棒の回転を弁体に伝達するようにしてい
る。このためにステム棒の一端をセラミツクス製
弁対の一部に直接嵌合せしめると、弁体のエツジ
部に応力集中が生じ、弁体に欠けが発生する。そ
こで実願昭59−197139号に提案されるように、セ
ラミツクス製弁体に凹部を形成し、この凹部に断
面チヤンネル状をなすインサート金具を嵌め付
け、このインサート金具にステム棒を係合したも
のがあるが、この場合にはインサート金具をエポ
キシ樹脂等によつて凹部に接合しているため、流
体が高温の場合には樹脂の接着力が低下し、且つ
水分に接触することで樹脂が劣化する不利があ
る。 By the way, in order to open and close the flow path by rotating the valve body, the rotation of the stem rod is transmitted to the valve body. For this reason, if one end of the stem rod is directly fitted into a portion of the ceramic valve pair, stress will be concentrated at the edge portion of the valve body, resulting in chipping of the valve body. Therefore, as proposed in Utility Model Application No. 59-197139, a concave portion is formed in a ceramic valve body, an insert fitting having a channel-shaped cross section is fitted into this concave portion, and a stem rod is engaged with this insert fitting. However, in this case, because the insert fitting is bonded to the recess with epoxy resin, etc., the adhesive strength of the resin decreases when the fluid is high temperature, and the resin deteriorates when it comes into contact with moisture. There are disadvantages to doing so.
このため弁体上部に接合平面を形成し、この接
合平面にメタライズを施し、このメタライズの部
分とインサート金具とをろう付けする方法が考え
られる。 For this purpose, a method can be considered in which a joining plane is formed on the upper part of the valve body, this joining plane is metallized, and the metalized part and the metal insert are brazed.
（発明が解決しようとする問題点）
上述したようにセラミツクス製弁体とインサー
ト金具とをろう付けすれば、耐熱性、耐湿性に優
れた接合部を得ることができるのであるが、ろう
付けを行うには弁体の接合面にメタライズを施さ
なければならず、メタライズを施すには金属ペー
ストをスクリーン印刷等によつて接合面に塗布す
る必要があり、このためには接合面を平面としな
ければならない。(Problems to be Solved by the Invention) As described above, by brazing the ceramic valve body and the insert fitting, a joint with excellent heat resistance and moisture resistance can be obtained. To do this, it is necessary to apply metallization to the joint surface of the valve body, and to apply metallization, it is necessary to apply metal paste to the joint surface by screen printing, etc., and for this, the joint surface must be flat. Must be.
一方、ろう付けを行うには弁体とインサート金
具との間にろう材を挟持した状態で、炉内を搬送
して加熱するわけであるが、弁体は球状であるた
め、治具によつて押えた状態で搬送しても、振動
等によつて弁体は傾斜しやすく、弁体が傾斜する
と弁体の接合平面上に載置しているインサート金
具が位置ずれを生じ、結果として弁体に対し偏心
した状態で接合され、不良品を製造することとな
る。 On the other hand, in order to perform brazing, the brazing material is sandwiched between the valve body and the metal insert, and then transported through a furnace and heated, but since the valve body is spherical, it must be heated using a jig. Even if the valve body is transported while being held in place, it is likely to tilt due to vibrations, etc. If the valve body is tilted, the insert metal fitting placed on the joining plane of the valve body will shift, resulting in the valve being damaged. It is joined in an eccentric state with respect to the body, resulting in the manufacture of defective products.
（問題点を解決するための手段）
上記問題点を解決すべく本発明は、セラミツク
ス製弁体の上部に平面を形成し、この平面にメタ
ライズを施し、このメタライズ上にろう材とイン
サート金具を重ねしてろう付けするに際し、イン
サート金具と弁体とをピン等を介して凹凸係合し
た状態で行うようにした。(Means for Solving the Problems) In order to solve the above problems, the present invention forms a flat surface on the top of a ceramic valve body, metallizes this flat surface, and places a brazing material and an insert fitting on the metallized surface. When overlapping and brazing, the insert fitting and the valve body are engaged with each other through a pin or the like.
（作用）
インサート金具と弁体とは凹凸係合した状態で
炉内を搬送されるため、搬送中に弁体が傾いても
インサート金具は弁体に対し位置ずれを生じるこ
とがない。(Function) Since the insert fitting and the valve body are conveyed through the furnace in a state in which they are engaged with each other, even if the valve body is tilted during transportation, the insert fitting does not become misaligned with respect to the valve body.
（実施例）
以下に本発明の実施例を添付図面に基づいて説
明する。(Example) Examples of the present invention will be described below based on the accompanying drawings.
第１図は本発明方法によつて製造された弁体を
組込んだボールバルブの縦断面図であり、ボール
バルブの弁筐１は左右の半体１ａ，１ｂをボルト
によつて結合してなり、弁筐１内の空間Ｓにはア
ルミナ、ジルコニア、窒化珪素、炭化珪素、サイ
アロン等のセラミツクスを焼成してなる弁体２を
収納している。 FIG. 1 is a longitudinal cross-sectional view of a ball valve incorporating a valve body manufactured by the method of the present invention, in which a valve housing 1 of the ball valve has left and right halves 1a and 1b connected by bolts. A space S within the valve housing 1 houses a valve body 2 made of fired ceramics such as alumina, zirconia, silicon nitride, silicon carbide, and sialon.
弁体２は略球状をなし、中央部には弁筐１に形
成した流路３と同径の弁孔４が穿設され、弁体２
の上部は載頭状として接合平面２ａを形成し、こ
の接合平面２ａにインサート金具５をろう付けに
て接合している。 The valve body 2 has a substantially spherical shape, and a valve hole 4 having the same diameter as the flow path 3 formed in the valve housing 1 is bored in the center part.
The upper part is shaped like a crown to form a joining plane 2a, and the insert fitting 5 is joined to this joining plane 2a by brazing.
具体的には接合平面２ａには凹部６，６が形成
され、インサート金具５には貫通穴７，７が形成
され、これら凹部６及び貫通穴７にピン８を挿入
するとともに接合平面２ａとインサート金具５間
にはろう材９が介在している。 Specifically, recesses 6, 6 are formed in the joining plane 2a, and through holes 7, 7 are formed in the insert fitting 5, and the pin 8 is inserted into these recesses 6 and through holes 7, and the joining plane 2a and the insert are connected. A brazing material 9 is interposed between the metal fittings 5.
ここでインサート金具５は、Fe：58％、Ni：
42％の42アロイ、Ni：29％、Co：17％、Fe：残
部としたKOVAR或いはステンレスからなり、そ
の表面にはNiメツキを施したものとし、インサ
ート金具５の中央部に形成した凹溝１０にはステ
ム棒１１の下端を係合せしめている。 Here, the insert metal fitting 5 has Fe: 58% and Ni:
It is made of KOVAR or stainless steel with 42% 42 alloy, Ni: 29%, Co: 17%, and Fe: the balance, and the surface is plated with Ni, and the groove formed in the center of the insert metal fitting 5. 10 is engaged with the lower end of a stem rod 11.
ステム棒１１はブツシユ１２及びシール部材１
３を介して弁筐１に回転自在に挿通され、弁筐１
から突出した上端部には手動操作用のハンドル１
４又はアクチエータが連結される。 The stem rod 11 has a bush 12 and a seal member 1.
3 to be rotatably inserted into the valve housing 1.
There is a handle 1 for manual operation on the upper end protruding from the
4 or actuators are connected.
一方、前記空間Ｓを形成した弁筐１の内部には
受け部１５を形成し、この受け部にシールリング
１６を介してセラミツクス製バルブシート１７を
嵌め込んでいる。 On the other hand, a receiving portion 15 is formed inside the valve housing 1 in which the space S is formed, and a ceramic valve seat 17 is fitted into this receiving portion via a seal ring 16.
以上において、弁体２にインサート金具５をろ
う付けするには、第２図に示すように弁体２の接
合平面２ａにMo−Mn法、Ｗ法或いはＷ−Mo法
によつてメタライズ１８を施し、このメタライズ
１８表面をNiメツキし、次いでNiメツキの上に
板状のろう材９及びインサート金具５を順次重
ね、インサート金具５に形成した貫通穴７と弁体
２の凹部６を合し、これら貫通穴７及び凹部６に
ピン８を挿入してインサート金具５を弁体２に固
定する。そして、この状態で弁体２を治具等で保
持して弁体２及びインサート金具５を炉内に通
し、ろう材９を溶融した後、ろう材９を凝固し、
第３図に示すように弁体２の接合面２ａにろう材
９を介して一体的にインサート治具５が接合され
た製品を得る。 In the above, in order to braze the insert fitting 5 to the valve body 2, as shown in FIG. The surface of this metallization 18 is plated with Ni, and then the plate-shaped brazing filler metal 9 and the insert fitting 5 are sequentially stacked on top of the Ni plating, and the through hole 7 formed in the insert fitting 5 is aligned with the recess 6 of the valve body 2. The insert fitting 5 is fixed to the valve body 2 by inserting the pin 8 into the through hole 7 and the recess 6. Then, in this state, the valve body 2 is held with a jig or the like, and the valve body 2 and the insert fitting 5 are passed through a furnace to melt the brazing filler metal 9, and then solidifying the brazing filler metal 9.
As shown in FIG. 3, a product is obtained in which the insert jig 5 is integrally joined to the joint surface 2a of the valve body 2 via the brazing material 9.
尚、図示例にあつては、ピン８によつで弁体２
とインサート金具５を凹凸係合するようにした
が、弁体２及びインサート金具５の一方に凸部を
他方に凹部を形成するようにしてもよい。 In the illustrated example, the pin 8 connects the valve body 2.
Although the valve body 2 and the insert fitting 5 are engaged with each other in a concave-convex manner, a convex portion may be formed on one of the valve body 2 and the insert fitting 5, and a concave portion may be formed on the other.
（発明の効果）
以上に説明した如く本発明によれば、弁体とイ
ンサート金具とを凹凸係合させた状態で、炉内を
搬送してろう付けを行うようにしたので、搬送中
に弁体が傾いても、弁体に対しインサート金具が
位置ずれを生ずることがなく、製品の歩留が大幅
に向上し、しかも弁体に対するインサート金具の
位置決めも係合させることで自動的に行えるため
位置決め作業も簡単となる。(Effects of the Invention) As explained above, according to the present invention, the valve body and the insert fitting are conveyed through the furnace and brazed in a state in which the valve body and the insert fitting are engaged with each other. Even if the body is tilted, the insert fitting will not be misaligned with respect to the valve body, which greatly improves the product yield. Moreover, the positioning of the insert fitting relative to the valve body can be done automatically by engaging it. Positioning work also becomes easier.
第１図は本発明方法によつて得られた弁体で組
込んだボールバルブの縦断面図、第２図はろう付
け前の状態を示す斜視図、第３図はろう付け後の
状態を示す断面図である。
尚、図面中１は弁筐、２は弁体、２ａは接合平
面、５はインサート金具、６は凹部、７は貫通
穴、８はピン、９はろう材である。
Fig. 1 is a longitudinal sectional view of a ball valve assembled with a valve body obtained by the method of the present invention, Fig. 2 is a perspective view showing the state before brazing, and Fig. 3 shows the state after brazing. FIG. In the drawings, 1 is a valve housing, 2 is a valve body, 2a is a joining plane, 5 is an insert fitting, 6 is a recess, 7 is a through hole, 8 is a pin, and 9 is a brazing material.
Claims (1)
し、この接合平面にメタライズを施した後に、メ
タライズ上面にろう材とインサート金具を載置し
てろう材を弁体とインサート金具間で挟持すると
ともに弁体とインサート金具とを凹凸係合せしめ
た状態で炉内を搬送するようにしたことを特徴と
するボールバルブにおけるセラミツクス製弁体と
インサート金具との接合方法。 ２ 前記凹凸係合はインサート金具に形成した貫
通穴にピンを上方から挿入し、このピンをセラミ
ツクス製弁体の接合平面に形成した凹部に係合せ
しめたものであることを特徴とする特許請求の範
囲第１項記載のボールバルブにおけるセラミツク
ス製弁体とインサート金具との接合方法。[Claims] 1. After forming a joining plane on the upper part of a ceramic valve body and applying metallization to this joining plane, a brazing material and an insert fitting are placed on the top surface of the metallization, and the brazing material is attached to the valve body and the insert. A method for joining a ceramic valve body and an insert fitting in a ball valve, characterized in that the valve body and the insert fitting are conveyed through a furnace in a state in which they are held between the metal fittings and engaged with each other in a concave-convex manner. 2. A patent claim characterized in that the concave-convex engagement is such that a pin is inserted from above into a through hole formed in the insert fitting, and this pin is engaged with a recess formed in a joining plane of a ceramic valve body. A method for joining a ceramic valve body and an insert fitting in the ball valve according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23557586A JPS6392877A (en) | 1986-10-03 | 1986-10-03 | Jointing method of ceramic valve body and insert metal in ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23557586A JPS6392877A (en) | 1986-10-03 | 1986-10-03 | Jointing method of ceramic valve body and insert metal in ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6392877A JPS6392877A (en) | 1988-04-23 |
| JPH0561506B2 true JPH0561506B2 (en) | 1993-09-06 |
Family
ID=16988019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23557586A Granted JPS6392877A (en) | 1986-10-03 | 1986-10-03 | Jointing method of ceramic valve body and insert metal in ball valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6392877A (en) |
-
1986
- 1986-10-03 JP JP23557586A patent/JPS6392877A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6392877A (en) | 1988-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02182325A (en) | Manufacture of metal part | |
| JPH0561506B2 (en) | ||
| US5809854A (en) | Boring bar device and method of assembly | |
| WO2000029352A3 (en) | Method for joining ceramic to metal | |
| US5083884A (en) | Metal ceramic composite body | |
| US3526419A (en) | Manifold coupling for connecting pipes together | |
| KR900005514B1 (en) | Joining method between the shaft portion of the ceramic structure and the boss portion of the metal structure | |
| JPH024553B2 (en) | ||
| JPS6077180A (en) | Bonded body | |
| JPH0674811B2 (en) | Manufacturing method of sliding parts | |
| FR2483549A1 (en) | HOMOCINETIC JOINT WITH ROLLING BALLS IN GROOVES OF AN EXTERNAL ELEMENT AND AN INTERIOR ELEMENT | |
| JPS6349591A (en) | Front fork for bicycle | |
| KR100306493B1 (en) | Diffusion joint method of puberty material | |
| JPH0532701Y2 (en) | ||
| JP2615675B2 (en) | Joining method of ceramic shaft and metal member | |
| JP3388617B2 (en) | Thyristor container manufacturing method | |
| JPH0692749A (en) | Manufacturing method of sliding parts | |
| JP2747865B2 (en) | Joint structure between ceramics and metal | |
| JPH01119570A (en) | Ceramic-metal composite mechanical part | |
| JPS6092025A (en) | Coupled structure of ceramics shaft and metallic shaft | |
| JP4153680B2 (en) | Metal bond superabrasive wheel with shaft and method for manufacturing the same | |
| JPH02149477A (en) | Method for joining ceramic rotor and metallic shaft | |
| JPH07165475A (en) | Bonded body of ceramic member and metal member | |
| JPH022499Y2 (en) | ||
| JPS62159707A (en) | Rocker arm |