JPS62228770A - Manufacture of valve box made of resin - Google Patents
Manufacture of valve box made of resinInfo
- Publication number
- JPS62228770A JPS62228770A JP7169786A JP7169786A JPS62228770A JP S62228770 A JPS62228770 A JP S62228770A JP 7169786 A JP7169786 A JP 7169786A JP 7169786 A JP7169786 A JP 7169786A JP S62228770 A JPS62228770 A JP S62228770A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- elastic sheet
- adhesive
- valve
- valve box
- 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 42
- 239000011347 resin Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004299 exfoliation Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 125000003700 epoxy group Chemical group 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Landscapes
- Valve Housings (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、弾性シートを備えた樹脂製弁箱の製造方法に
関し、詳しくは、弁箱に対して付設する弾性シート２弁
箱成型用の型枠内に設置し、その後、前記型枠内に樹１
指を注入する樹脂製弁箱の製造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a resin valve box equipped with an elastic sheet, and more specifically, a method for manufacturing a resin valve box provided with an elastic sheet. installed in the formwork, and then placed 1 tree in the formwork.
This invention relates to a method of manufacturing a resin valve box into which fingers are injected.
従来、上記の如き樹脂製弁箱の製造方法においては、注
入樹脂本来の接着作用だけで弾性シートとｔ＃脂との接
着を図っており、それらの接着性については何ら考慮を
払っていなかった（例えば、特開昭５９−１４００４３
号公報、並びに、特開昭５９−１４２）１６号公報参照
）。Conventionally, in the manufacturing method of resin valve boxes as described above, the elastic sheet and T# resin were adhered only by the adhesive action inherent to the injected resin, and no consideration was given to their adhesive properties. (For example, JP-A-59-140043
(See Japanese Patent Laid-Open No. 59-142) No. 16).
しかし、注入樹脂本来の接着作用だけでは十分な接着強
度を得ることができず、そのために、弁全閉時に弁体に
対する操作力が弾性シートに作用して弾性シートと樹脂
とが剥離した状態となり、弾性シートと樹脂との間を介
して流体がリークすることがあった。However, sufficient adhesive strength cannot be obtained only by the adhesive action of the injected resin, and as a result, when the valve is fully closed, the operating force applied to the valve body acts on the elastic sheet, causing the elastic sheet and resin to separate. However, fluid sometimes leaked between the elastic sheet and the resin.
本発明の目的は、簡単な付加手段により弾性シートと樹
脂との剥離を防止する点にある。An object of the present invention is to prevent the elastic sheet from peeling off from the resin by a simple addition means.
本発明による樹脂製弁箱製造方法の特徴手段は、弾性シ
ートを設置した型枠に対する樹脂の注入に先立って、弾
性シートの樹脂に対する接触部に接着材を塗布しておく
ことにあり、その作用・効果は次の通りである。The characteristic means of the resin valve box manufacturing method according to the present invention is that, prior to injecting the resin into the formwork in which the elastic sheet is installed, an adhesive is applied to the contact portion of the elastic sheet with the resin.・The effects are as follows.
つまり、接着剤の接着力により弾性シートとｍ詣との接
着強度が高められるから 、弁体に対する操作力が弁閉
時に弾性シートに作用すること等に起因した弾性シート
と樹脂との剥離は効果的に防止される。In other words, since the adhesive strength of the adhesive increases the adhesive strength between the elastic sheet and the m-mari, peeling of the elastic sheet and resin due to factors such as the operating force acting on the valve body acting on the elastic sheet when closing the valve is effective. is prevented.
その結果、弾性シートと樹脂との間を介しての流体リー
クが防止され、弁閉時におけるシールに対する信頼住の
高い弁を提供できるようになった。As a result, fluid leakage between the elastic sheet and the resin is prevented, and a valve with highly reliable sealing when the valve is closed can be provided.
次に本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第１図及び第２図は、バタフライ弁における樹脂製弁箱
の製造過程を示し、図中（１）及び（２）は夫々弁ｌｌ
Ｎ成型用の型枠であり、（１）は周方向に分割形成した
弁箱外局面形成用の型枠、（２）は弁侑紬芯方向に一分
割形成した弁箱内局面形成用の中子である。Figures 1 and 2 show the manufacturing process of a resin valve box for a butterfly valve.
These are molds for N molding. (1) is a mold for forming the outer curve of the valve box, which is divided into parts in the circumferential direction, and (2) is a mold for forming the inner curve of the valve box, which is divided into parts in the direction of the valve core. It is the middle child.
そして、製造手順としては、それら型枠（１）。As for the manufacturing procedure, those formworks (1).
（２）を組むにあたって、クロロピレンゴムやエチレン
プロピレンゴム等からの成る環状の弾性シー ） ＋３
１を、中子（２）に形成した環状溝（２Ａ） Ｋ係入さ
せる状態で型枠ｆ１） 、 ＋２）内に設置すると共に
、補強材としてゲラスマット（４）を型枠ｆｌｌ 、
＋２）内に収容する。In assembling (2), a ring-shaped elastic sheet made of chloropylene rubber, ethylene propylene rubber, etc.) +3
1 is installed in the formwork f1), +2) in a state where it is inserted into the annular groove (2A) K formed in the core (2), and the gelatin mat (4) is inserted into the formwork fl1, +2) as a reinforcing material.
+2).
そして、その後、不飽和ポリエステルやビニルエステル
等の樹脂（５）を、組上がった型枠用。Then, resin (5) such as unsaturated polyester or vinyl ester is applied to the assembled formwork.
（２）内に対して湯口（５）から加圧注入し、もって、
弾性シー） （３１ｆ：鋳包む状態で弁箱を一体形成す
る。(2) Inject under pressure from the sprue (5), and then
Elastic Sea) (31f: The valve body is integrally formed in a cast-in state.
弾性シート（３）を型枠ｆｌ） 、 ［２）内に設置す
るにあたっては、弾性シー） ＋３１１にベアバー処理
し、かつ、清浄処理した後、弾性シート（３）の樹脂（
５）に対する接触部にエポキシ系等の接着剤（））を塗
布しておき、そして、その接着剤（７）が硬化する以前
に樹脂（５）を注入するようにする。When installing the elastic sheet (3) in the formwork fl), [2), the elastic sheet (3) is subjected to bare bar treatment and cleaning treatment, and then the resin (3) of the elastic sheet (3) is
An adhesive () such as epoxy adhesive (2) is applied to the contact portion with (5), and the resin (5) is injected before the adhesive (7) hardens.
つまシ、接着剤（７）の接着力に、１：、り弾性シート
（３）と樹脂（５）との接着強度を高めるようにする。The adhesive strength of the pick and adhesive (7) is set to 1: Increase the adhesive strength between the elastic sheet (3) and the resin (5).
又、弾性シート（３）の接着剤塗布面にはチョツプドス
トランドマット（８）（例えば、ガラス繊維から成る不
織布の如きもの）ｆｔ貼付けておき、そのチョツプドス
トランドマット（８）のＩＮ ＋１５ （ｓ）ｖｃ対す
るアンサ−効果で接着剤（７）による弾性シートｆ３＋
と樹脂（５）との接着を助成してそれらの接着強度を一
層高めるようにする。Further, a chopped strand mat (8) (for example, a nonwoven fabric made of glass fiber) ft is pasted on the adhesive-coated surface of the elastic sheet (3), and the IN of the chopped strand mat (8) is pasted. +15 (s) Elastic sheet f3+ by adhesive (7) with answer effect on vc
and the resin (5) to further increase their adhesive strength.
第３図は、上述の如く製造した樹脂製弁箱（９１のバタ
フライ弁としての使用状態を示し、図中＋１０＋はガラ
ス繊ｍ （Ｉｌｌを補強材とした同じく樹脂製の回転弁
体である。FIG. 3 shows the state in which the resin valve box (91) manufactured as described above is used as a butterfly valve, and +10+ in the figure is a rotary valve body also made of resin and using glass fiber m (Ill) as a reinforcing material.
同第３図に示す如き閉弁状急では弁体（ｌαに加えられ
た閉弁操作トルクが弾性シート（３）に対して作用する
状態となるが、前述の如き接着剤（７）塗布による接着
強度の同上により弾性シート（３）の弁箱側樹脂（６１
に対する接着状態は良好に維持される。In the case of sudden valve closing as shown in Fig. 3, the valve closing operation torque applied to the valve body (lα) acts on the elastic sheet (3), but the Due to the same adhesive strength, the resin (61) on the valve box side of the elastic sheet (3)
The adhesion to the surface is maintained well.
次に本考案の別実施例を説明する。 Next, another embodiment of the present invention will be described.
弾性シート（３）の材質、並びに、弁箱を形成する樹脂
（６１の材質は夫々種々のものを適用できる７、又、樹
脂（５）の注入に先立って弾性シート（３）の樹脂（５
）に対する接触部に塗付しておく接着剤（７）としても
、弾性シート（３）の構成材質並びに樹脂ｆｌｉｌの相
方に対して接着作用をもつものであれば種々の接着剤を
適用できる。Various materials can be used for the material of the elastic sheet (3) and the resin (61) forming the valve box.
) Various adhesives can be used as long as they have an adhesive effect on the constituent material of the elastic sheet (3) and the resin flil.
接着剤（７）による弾性シート（３）と樹脂（５）との
接着を助成するために弾性シート（３）の接着剤塗布面
に貼設するものとしては、種々のものを適用できるが省
略しても良い。Various types of materials can be applied to the adhesive-applied surface of the elastic sheet (3) to assist the adhesion between the elastic sheet (3) and the resin (5) using the adhesive (7), but this is omitted. You may do so.
樹脂（５）に対する補強材（４）として型枠ｆｉｌ 、
＋２）内に収容してかくものはグラスマントに限定す
れるものでは無く、又、樹脂（５）そのものにある程の
強度を期待できる場合には補強材（４）を省略しても良
い。Formwork fil as reinforcement material (4) for resin (5),
+2) The material to be housed in the glass cape is not limited to the glass cloak, and if the resin (5) itself can be expected to have a certain level of strength, the reinforcing material (4) may be omitted.
弾性シート（３）の型枠（１１、＋２）内への具体的設
置構造は種々の改良がａＴｆたである
本発明による樹脂製弁箱の製造方法は、バタフライ弁に
限らず仕切弁やボールが等、種々の型式の弁に適１１１
できる。Various improvements have been made to the specific installation structure of the elastic sheet (3) in the formwork (11, +2). Suitable for various types of valves such as 111
can.
第１因ないし第３図は本発明の実施例を示し、第１図は
要部の拡大断面図、第２図は弁箱製造課程を示す縦断面
図、第３図はバタフライ弁のｇ［−分断面図である。
＋１１ 、 ＋２）・・・・・・型枠、（３）・・・・
・・弾性シー１−、＋５１・・・・・・樹脂、（７）・
・・・・・接着材、（９）・・・・・・弁箱。
代理人 弁理士 北 村 修
−派
げFigures 1 to 3 show examples of the present invention, with Figure 1 being an enlarged cross-sectional view of the main parts, Figure 2 being a longitudinal cross-sectional view showing the valve box manufacturing process, and Figure 3 being a g[ - It is a cross-sectional view. +11, +2)...Formwork, (3)...
・・Elastic sea 1−, +51・・・Resin, (7)・
...adhesive material, (9) ...valve box. Agent Patent Attorney Osamu Kitamura
Claims (1)
型用の型枠（１）、（２）内に設置し、その後、前記型
枠（１）、（２）内に樹脂（５）を注入する樹脂製弁箱
の製造方法であって、前記型枠（１）、（２）に対する
樹脂（５）の注入に先立って、前記弾性シート（３）の
樹脂（５）に対する接触部に接着剤（７）を塗布してお
く樹脂製弁箱の製造方法。An elastic sheet (3) to be attached to the valve box (9) is installed in the molds (1) and (2) for molding the valve box, and then a resin is placed in the molds (1) and (2). (5), wherein prior to injecting the resin (5) into the molds (1) and (2), the elastic sheet (3) is injected with the resin (5). A method of manufacturing a resin valve box in which adhesive (7) is applied to the contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7169786A JPS62228770A (en) | 1986-03-28 | 1986-03-28 | Manufacture of valve box made of resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7169786A JPS62228770A (en) | 1986-03-28 | 1986-03-28 | Manufacture of valve box made of resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62228770A true JPS62228770A (en) | 1987-10-07 |
Family
ID=13467993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7169786A Pending JPS62228770A (en) | 1986-03-28 | 1986-03-28 | Manufacture of valve box made of resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62228770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382503A (en) * | 1989-08-25 | 1991-04-08 | Zoukei:Kk | Manufacture of female mold for molding concrete product with decorative pattern of three-dimensional shape |
-
1986
- 1986-03-28 JP JP7169786A patent/JPS62228770A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382503A (en) * | 1989-08-25 | 1991-04-08 | Zoukei:Kk | Manufacture of female mold for molding concrete product with decorative pattern of three-dimensional shape |
| JPH0529523B2 (en) * | 1989-08-25 | 1993-04-30 | Zokei Kk |
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