JPS6037345B2 - Manufacturing method of metal gasket - Google Patents
Manufacturing method of metal gasketInfo
- Publication number
- JPS6037345B2 JPS6037345B2 JP3564279A JP3564279A JPS6037345B2 JP S6037345 B2 JPS6037345 B2 JP S6037345B2 JP 3564279 A JP3564279 A JP 3564279A JP 3564279 A JP3564279 A JP 3564279A JP S6037345 B2 JPS6037345 B2 JP S6037345B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- seal
- hollow cylindrical
- base material
- peripheral surface
- 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
Landscapes
- Gasket Seals (AREA)
Description
【発明の詳細な説明】
本発明はフランジなどの間を気密的にシールする金属ガ
スケツトの装造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of assembling a metal gasket that airtightly seals between flanges and the like.
従来の金属ガスケットを第１，２，３図により説明する
と、第１図ａ，ｂが配管、ｃ，ｄが同配管ａ，ｂの端部
に取付けたフランジ、ｅ，ｆが同フランジｃ，ｄの接合
面に設けた環状溝、第１，２図のｇが同環状溝ｅ，ｆの
間に介装した金属ガスケット、ｈが前記フランジｃ，ｄ
を綿付け固定するボルトで、第３図に示すように高弾性
を有する中空円筒状の金属母材ｇの内周面及び外周の全
域に轍質のシールメタル鞍，＆を一定の厚さに〆ッキ加
工したのち、同金属母村亀をその中心線Ａ上に頂点をお
く仮想の円錐面Ｂ，Ｂに沿い切断して、金属ガスケット
ｇを製造するように、またその結果得られた同金属ガス
ケットｇをフランジｃ，ｄの接合面に設けた環伏溝ｅ，
ｆ内に挿入して、シールメタル鞍の内周面を環状溝ｅの
内周面に、シールメタル＆の外周面を環状溝ｆの外周面
に、それぞれ接触させると同時にシールメタル＆，段の
シャープエッジ部を同環状溝ｅ，ｆの隅角部に接触させ
、次いでボルトｈを締付け、金属母材ｇ．を同締付け力
に応じ弾性変形させて、シールメタル＆の内周面を環状
溝ｅの内周面に、シールメタル段の外周面を環状溝ｆの
外周面に、シールメタル段，ｇ３のシャープエッジ部を
同環状溝ｅ，ｆの隅角部に、それぞれ押し付けてつぶし
、同環状簿ｅ，ｆの微細な凹凸を埋めて、超高真空の配
管ａ，ｂ内を配管外に対して気密的にシールするように
、またボルトｈを取外して、フランジｃ，ｄを離隔し、
金属ガスケットｇを環状溝ｅ，ｆから取出して自身のバ
ネ効果により第２図の状態に戻したのち、前記のように
細付け、配管ａ，ｂ内を配管外に対し再び気密的にシー
ルして、金属ガスケットｇを繰返し使用するようになっ
ている。A conventional metal gasket is explained with reference to Figs. 1, 2, and 3. In Fig. 1, a and b are pipes, c and d are flanges attached to the ends of the pipes a and b, and e and f are flanges c, g in Figures 1 and 2 is a metal gasket inserted between the annular grooves e and f, and h is the flanges c and d.
As shown in Fig. 3, a rut-like seal metal saddle is attached to the entire inner and outer circumference of the hollow cylindrical metal base material g with a constant thickness, as shown in Figure 3. After finishing, the metal gasket g was cut along imaginary conical surfaces B and B whose apex was placed on the center line A, and the resulting metal gasket was cut. An annular groove e provided with the same metal gasket g on the joint surfaces of flanges c and d,
the inner peripheral surface of the seal metal saddle is brought into contact with the inner peripheral surface of the annular groove e, and the outer peripheral surface of the seal metal & is brought into contact with the outer peripheral surface of the annular groove f. The sharp edge portion is brought into contact with the corner portions of the annular grooves e and f, and then the bolt h is tightened, and the metal base material g. is elastically deformed according to the same tightening force, and the inner circumferential surface of the seal metal & is aligned with the inner circumferential surface of the annular groove e, the outer circumferential surface of the seal metal step is attached to the outer circumferential surface of the annular groove f, and the sharp edge of the seal metal step g3 is Press and crush the edges into the corners of the annular grooves e and f, and fill in the minute irregularities of the annular grooves e and f to make the inside of the ultra-high vacuum pipes a and b airtight from the outside of the pipe. Remove bolt h and separate flanges c and d so as to seal properly.
After taking out the metal gasket g from the annular grooves e and f and returning it to the state shown in Figure 2 by its own spring effect, tighten it as described above and airtightly seal the inside of the pipes a and b from the outside of the pipe again. Therefore, the metal gasket g is used repeatedly.
前記金属ガスケットｇでは、シールメタルｇ２，＆を金
属母材ｇ．の内外周面にメッキ加工により形成している
ので、（１）シールメタル＆，＆の厚さを自由に変える
ことができない。In the metal gasket g, the seal metal g2, & is the metal base material g. Since the inner and outer circumferential surfaces of the seal metal are formed by plating, (1) the thickness of the seal metal &, & cannot be freely changed.
（ロ）シールメタル軸，鶴を任意の材料例えば欧質合金
により形成することができるという問題があった。なお
同第（ロ）項については、蒸着等の方法を用いれば、軟
質合金等を金属母材ｇ，の内外周面に形成できるが、前
記（１）項については解決されない。本発明は前記の問
題点に対処するもので、中空円筒状の金属母材の内周面
に厚さが一定の中空円筒状の内側シールメタルを、同金
属母村の外周面に厚さが一定の中空円筒状の外側シール
を、それぞれ密着させるとともに同内側のシールメタル
の内周面に中空円筒状の内ブロックを、同外側のシール
メタルの外周面に中空円筒状の外ブロックを、それぞれ
密着さて、次いでこれらを加熱するとともに同各ブロッ
ク内に形成した空間部を圧力流体供給源からの圧力流体
により加圧して前記金属母材と前記各シールメタルとを
拡散接合させ、次いで前記各ブロックを取除いたのち、
前記金属母村と前記各シ−ルメタルとをその中心線上に
頂点をおく仮想の円錐面に沿い切断することを特徴とし
た金属ガスケットの製造方法に係り、その目的とする処
は、金属母材の内外周面に、任意の材料のシールメタル
を任意の厚さに形成できる改良された金属ガスケットの
製造方法を供する点にある。本発明の金属ガスケットの
製造方法は前記のように中空円筒状の金属母材の内周面
に厚さ一定の中空円筒状の内側シールメタルを、同金属
母材の外周面に厚さが一定の中空円筒状の外側シールを
、それぞれ密着させるとともに同内側のシールメタルの
内周面に中空円筒状の内ブロックを、同外側のシールメ
タルの外周面に中空円筒状の外ブロックを、それぞれ密
着させ、次いでこれらを加熱するとともに同各ブロック
内に形成した空間部を圧力流体供給源からの圧力流体に
より加圧して前記金属母材と前記各シールメタルとを拡
散接合させ、次いで前記各ブロックを取除いたのち、前
記金属母材と前記各シールメタルとをその中心線上に頂
点をおく仮想の円錐面に沿い切断するので、金属母体の
内外周面に、任意の材料のシールメタルを任意の厚さに
形成できるものである。(b) There is a problem in that the seal metal shaft and crane can be made of any material, such as a European alloy. Regarding item (b), if a method such as vapor deposition is used, a soft alloy or the like can be formed on the inner and outer circumferential surfaces of the metal base material g, but item (1) is not solved. The present invention addresses the above-mentioned problems, and includes a hollow cylindrical inner seal metal having a constant thickness on the inner peripheral surface of a hollow cylindrical metal base material, and a hollow cylindrical inner seal metal having a constant thickness on the outer peripheral surface of the metal base material. A certain hollow cylindrical outer seal is brought into close contact with each other, and a hollow cylindrical inner block is attached to the inner circumferential surface of the inner seal metal, and a hollow cylindrical outer block is attached to the outer circumferential surface of the same outer seal metal. Next, these are heated and the spaces formed in each block are pressurized with pressure fluid from a pressure fluid supply source to diffusion bond the metal base material and each of the seal metals, and then each of the blocks is bonded. After removing the
The method for manufacturing a metal gasket is characterized in that the metal matrix and each of the seal metals are cut along an imaginary conical surface having an apex on the center line thereof, and the purpose thereof is to An object of the present invention is to provide an improved method for manufacturing a metal gasket in which seal metal of any material and thickness can be formed on the inner and outer circumferential surfaces of the gasket. As described above, the method for manufacturing a metal gasket of the present invention is to provide a hollow cylindrical inner seal metal with a constant thickness on the inner peripheral surface of a hollow cylindrical metal base material, and a hollow cylindrical inner seal metal with a constant thickness on the outer peripheral surface of the metal base material. The hollow cylindrical outer seals are brought into close contact with each other, and the hollow cylindrical inner block is brought into close contact with the inner peripheral surface of the inner seal metal, and the hollow cylindrical outer block is brought into close contact with the outer peripheral surface of the same outer seal metal. Then, while heating these, the space formed in each block is pressurized with pressure fluid from a pressure fluid supply source to diffusion bond the metal base material and each seal metal, and then each block is After removal, the metal base material and each of the seal metals are cut along an imaginary conical surface with its apex on its center line. It can be formed to any thickness.
次に本発明の金属ガスケットの製造方法を第４，５図に
示す一実施例により説明すると、１がステンレスス鋼材
により中空円筒状に形成した金属母材、２が鋼材により
一定の厚さｔ，の中空円筒状に形成した内側のシールメ
タル、３が鋼材により一定の厚さらの中空円筒状に形成
した外側のシールメタル、４がアルミニウム材により中
空円筒状に形成した内ブロック、４ａが同内ブロック４
内に設けた空間部４ｂにより薄肉とした同内ブロック４
の外周部、６が圧力流体供給源（図示せず）から上記空
間部４ｂへ延びた圧力流体通路、５がステンレス鋼材に
より中空円筒状に形成した外ブロック、５ａが同外ブロ
ック５内に設けた環状空間部５Ｍこより薄肉とした同外
ブロック５の内周部、７が上記圧力流体供給源から上記
空間部５ｂへ延びた圧力流体通路、８，９が前記外ブロ
ック５の外周面を保持する保持ブロック、１０，１１が
前記内外ブロック４，５の上下面を保持する保持ブロッ
クで、金属ガスケツトを製造するに当っては、金属母村
１の内周面に内側シールメタル２を、同金属母材１の外
周面に外側シールメタル３を、それぞれ密着させるとと
もに同内側のシールメタル２の内周面に内ブロック４の
外周部４ａを、同外側シールメタル３の外周面に外ブロ
ック５の内周部５ａを、それぞれ密着させ、次いで真空
炉（図示せず）へ入れて、内外ブロック４，５を保持ブ
ロック８〜１１により固定し、次いで炉内温度を上げて
加熱すると同時に圧力流体を圧力流体供給源から圧力流
体通路６，７を介し空間部４ｂ，５ｂ内へ供給して内側
シールメタル２と外側シールメタル３とを金属母村１の
方向へ加圧し、互の接合面に面圧を発生させて、内側シ
ールメタル２と外側シールメタル３とを金属母体１の内
外周面に拡散接合させる。次いで真空炉内から取出して
、内ブロック４と外ブロック５とを取除くが、内側シー
ルメタル２と内ブロック４との接合面、及び外側シール
メタル３と外ブロック５との接合面に予め離型材を入れ
ておけば、内ブロック４と外ブロック５とをそのままの
形で取除くことができる。しかし雛型材を入れておかな
ければ、前記拡散接合時、上記接合面にも拡散接合が生
ずるので、内ブロック４と外ブロック５とを削り取って
取除くようにする。次いで前記のように拡散接合した金
属母材１と内側シールメタル２と外側シールメタル３と
をその中心線上に頂点をおく円錐面に沿い切断して、所
期の形状の金属ガスケットを得るようにする。従って金
属母材１の内外周面に、任意の材料のシールメタルを任
意の厚乳こ形成できるものである。以上本発明を実施例
について説明したが、勿論本発明はこのような実施例に
だけ局限されるものではなく、本発明の精神を逸脱しな
い範囲内で種々の設計の改変を施しうるものである。Next, the method for manufacturing a metal gasket of the present invention will be explained with reference to an embodiment shown in FIGS. , 3 is an inner seal metal formed in the shape of a hollow cylinder, 3 is an outer seal metal formed in the shape of a hollow cylinder with a constant thickness, 4 is an inner block formed in the shape of a hollow cylinder from aluminum, and 4a is the same. inner block 4
The inner block 4 has a thinner wall due to the space 4b provided therein.
, 6 is a pressure fluid passage extending from a pressure fluid supply source (not shown) to the space 4b, 5 is an outer block formed in a hollow cylindrical shape from stainless steel, and 5a is provided in the outer block 5. 7 is a pressure fluid passage extending from the pressure fluid supply source to the space 5b, and 8 and 9 hold the outer circumferential surface of the outer block 5. Holding blocks 10 and 11 are holding blocks that hold the upper and lower surfaces of the inner and outer blocks 4 and 5, and when manufacturing a metal gasket, the inner seal metal 2 is placed on the inner peripheral surface of the metal matrix 1. The outer seal metal 3 is brought into close contact with the outer circumference of the metal base material 1, and the outer circumference 4a of the inner block 4 is attached to the inner circumference of the inner seal metal 2, and the outer block 5 is attached to the outer circumference of the outer seal metal 3. The inner circumferential parts 5a of the inner peripheral parts 5a of the inner peripheral parts are brought into close contact with each other, and then put into a vacuum furnace (not shown), the inner and outer blocks 4 and 5 are fixed by the holding blocks 8 to 11, and then the temperature inside the furnace is raised to heat and at the same time pressurized fluid is applied. is supplied from a pressure fluid supply source into the spaces 4b and 5b through the pressure fluid passages 6 and 7 to pressurize the inner seal metal 2 and the outer seal metal 3 in the direction of the metal matrix 1, and apply pressure to their joint surfaces. Surface pressure is generated to diffusion bond the inner seal metal 2 and the outer seal metal 3 to the inner and outer circumferential surfaces of the metal matrix 1. Next, the inner block 4 and the outer block 5 are removed from the vacuum furnace, but the joint surfaces between the inner seal metal 2 and the inner block 4 and the joint surfaces between the outer seal metal 3 and the outer block 5 are separated in advance. If the mold material is inserted, the inner block 4 and outer block 5 can be removed as they are. However, if the template material is not inserted, diffusion bonding will also occur on the bonding surfaces during the diffusion bonding, so the inner block 4 and outer block 5 are removed by scraping. Next, the metal base material 1, the inner seal metal 2, and the outer seal metal 3, which have been diffusion bonded as described above, are cut along a conical surface whose apex is placed on the center line to obtain a metal gasket of the desired shape. do. Therefore, seal metal of any desired material can be formed on the inner and outer circumferential surfaces of the metal base material 1 to any desired thickness. Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .
第１図は金属ガスケットの使用例を示す縦断側面図、第
２図はその拡大縦断側面図、第３図は従釆の金属ガスケ
ットの製造方法を示す縦断側面図、第４図は本発明に係
る金属ガスケットの製造方法の一実施例を示す縦断側面
図、第５図は第４図失視Ｖ−Ｖ線に沿う横断面図である
。
１・・…・金属母材、２・・…・内側のシールメタル、
３・・…・外側のシールメタル、４・…・・内ブロック
、５……外ブロック。
精↑図
第２図
第３図
第４図
第５図Fig. 1 is a longitudinal side view showing an example of the use of a metal gasket, Fig. 2 is an enlarged longitudinal side view thereof, Fig. 3 is a longitudinal side view showing a method for manufacturing a subordinate metal gasket, and Fig. 4 is a longitudinal side view showing an example of the use of a metal gasket. FIG. 5 is a longitudinal cross-sectional side view showing one embodiment of the method for manufacturing such a metal gasket, and FIG. 5 is a cross-sectional view taken along the line V--V in FIG. 4. 1...metal base material, 2...inner seal metal,
3...Outer seal metal, 4...Inner block, 5...Outer block. Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
円筒状の内側シールメタルを、同金属母材の外周面に厚
さが一定の中空円筒状の外側シールを、それぞれ密着さ
せるとともに同内側のシールメタルの内周面に中空円筒
状の内ブロツクを、同外側のシールメタルの外周面に中
空円筒状の外ブロツクを、それぞれ密着させ、次いでこ
れらを加熱するとともに同各ブロツク内に形成した空間
部を圧力流体供給源からの圧力流体により加圧して前記
金属母材と前記各シールメタルとを拡散接合させ、次い
で前記各ブロツクを取除いたのち、前記金属母材と前記
各シールメタルとをその中心線上に頂点をおく仮想の円
錐面に沿い切断することを特徴とした金属ガスケツトの
方法。1 A hollow cylindrical inner seal metal with a constant thickness is tightly attached to the inner peripheral surface of a hollow cylindrical metal base material, and a hollow cylindrical outer seal metal with a constant thickness is tightly attached to the outer peripheral surface of the same metal base material. At the same time, a hollow cylindrical inner block is brought into close contact with the inner peripheral surface of the inner seal metal, and a hollow cylindrical outer block is brought into close contact with the outer peripheral surface of the same outer seal metal. The space formed inside is pressurized with pressure fluid from a pressure fluid supply source to diffusion bond the metal base material and each of the seal metals, and then, after removing each of the blocks, the metal base material and the seal metal are bonded together. A metal gasket method characterized by cutting each seal metal along an imaginary conical surface with its apex on its center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3564279A JPS6037345B2 (en) | 1979-03-28 | 1979-03-28 | Manufacturing method of metal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3564279A JPS6037345B2 (en) | 1979-03-28 | 1979-03-28 | Manufacturing method of metal gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55129660A JPS55129660A (en) | 1980-10-07 |
| JPS6037345B2 true JPS6037345B2 (en) | 1985-08-26 |
Family
ID=12447518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3564279A Expired JPS6037345B2 (en) | 1979-03-28 | 1979-03-28 | Manufacturing method of metal gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037345B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0277273A (en) * | 1988-04-22 | 1990-03-16 | Hasso Von Bluecher | Activated carbon filter layer for gas mask |
-
1979
- 1979-03-28 JP JP3564279A patent/JPS6037345B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0277273A (en) * | 1988-04-22 | 1990-03-16 | Hasso Von Bluecher | Activated carbon filter layer for gas mask |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55129660A (en) | 1980-10-07 |
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