JPH02309097A - Stainless material lining method for socket - Google Patents
Stainless material lining method for socketInfo
- Publication number
- JPH02309097A JPH02309097A JP12717689A JP12717689A JPH02309097A JP H02309097 A JPH02309097 A JP H02309097A JP 12717689 A JP12717689 A JP 12717689A JP 12717689 A JP12717689 A JP 12717689A JP H02309097 A JPH02309097 A JP H02309097A
- Authority
- JP
- Japan
- Prior art keywords
- socket
- rubber
- bulge
- stainless steel
- foil
- 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
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 27
- 239000010935 stainless steel Substances 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000011888 foil Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 5
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はステンレス材で管端部の受口の内張を行う方法
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for lining a pipe end socket with stainless steel material.
従来の技術
従来より、鋳鉄管などにおいては、錆の発生防止のため
に、管の胴部内面をモルタルなどで内張すし、受口内面
や挿口内外面に有機系塗料を塗布したものがある。Conventional technology Traditionally, to prevent rust from forming on cast iron pipes, the inner surface of the pipe's body has been lined with mortar, etc., and organic paints have been applied to the inner surface of the socket and the inner and outer surfaces of the socket. .
発明が解決しようとする課題
しかしながら、この種の管においては有機系塗料やモル
タルが管接続時に損傷して錆が発生し、また通水により
赤水等の発生原因となるという問題があった。Problems to be Solved by the Invention However, in this type of pipe, there have been problems in that the organic paint and mortar are damaged and rust occurs when the pipe is connected, and that the passage of water causes the generation of red water and the like.
本発明は上記問題を解決するもので、赤水等が発生しな
い受口を提供することができる受口のステンレス材内張
方法を得ることを目的とするものである。The present invention solves the above-mentioned problems, and aims to provide a method for lining a socket with a stainless steel material, which can provide a socket that does not generate red water or the like.
課題を解決するための手段
上記問題を解決するために本発明は、外周面に接着剤を
塗布したステンレス材をライニング対象の管の受口内に
挿入し、上記ステンレス材の内周側に環状のゴム材を挿
入配置し、ゴム材圧縮用治具により上記ゴム材を変形さ
せて外向きに張出させ、このゴム材で上記ステンレス材
を上記受口の内周面に押圧して圧着させるものである。Means for Solving the Problems In order to solve the above problems, the present invention involves inserting a stainless steel material coated with an adhesive onto the outer peripheral surface into the socket of the pipe to be lined, and inserting an annular ring on the inner peripheral side of the stainless steel material. A rubber material is inserted and arranged, the rubber material is deformed and bulged outward by a rubber material compression jig, and the stainless steel material is pressed and crimped against the inner peripheral surface of the socket with the rubber material. It is.
作用
上記構成により、ゴム材圧縮用治具によりゴム材を変形
させて外向きに張出させることにより、受口の内周面が
複雑な形状であっても、ゴム材はその形状に合うまで張
出すので、ゴム材により押圧されたステンレス材は受口
の内周面に確実に密着する。これにより、受口の接水部
における錆の発生を防止できて、通水時に赤水などが生
じることはなくなる。Effect With the above configuration, by deforming the rubber material using the rubber material compression jig and making it bulge outward, even if the inner peripheral surface of the socket has a complicated shape, the rubber material will be compressed until it fits the shape. Since it protrudes, the stainless steel material pressed by the rubber material reliably comes into close contact with the inner peripheral surface of the socket. As a result, rust can be prevented from forming at the water contact part of the socket, and red water will not be generated when water is passed through.
実施例 以下、本発明の実施例を図面に基づき説明する。Example Embodiments of the present invention will be described below based on the drawings.
第１図において、１は例えば呼び径１００ｍの鋳鉄管２
の端部に形成された受口３は薄肉のステンレス材として
の例えば厚さが０．３−のステンレス箔、１０はステン
レス箔２を受口１に内張すする際に用いるゴム材圧縮用
治具であり、まず、ゴム材圧縮用治具ｌＯについて説明
する。このゴム材圧縮用治具ｌＯは、油圧シリンダ１１
のロッドｌｌａの先端に中空筒状のバルジピストン１２
が組付けられ、バルジピストン１２の細心位置には、こ
のバルジピストン１２内から前方（油圧シリンダ１１の
ロッドｌｌａの突出方向）へ延びるホルダーシャフト１
３が同軸心で前後に出退自在に取付けられ、長手方向中
央に形成された鍔部１３ａにより所定位置より前方への
突出が規制されでいる。ホルダーシャフト１３における
前方へ延びた部分には、バルジピストン１２の前方に配
設された、例えば硬度４０″の軟質ゴムよりなる環状で
厚肉のバルジゴム１４が外嵌されているとともにさらに
バルジゴム１４の前方に配設されて後方側はど広がる略
円錐台形状の押さえフランジ部材１５が外嵌固定されて
いる。バルジピストン１２の前部外周面とバルジゴム１
４の押圧力無負荷時の外周面とは面一状とされ、筒状の
スライドケース１６がこれらバルジピストン１２とバル
ジゴム１４との外周面に沿って前後にスライド可能とさ
れている。スライドケース１６の前部には、受口１の端
面に当接可能とすべく外側方に延びる鍔部１６ａが設け
られているとともに、スライドケース１６の後部には内
側方に延びる屈曲部１６ｂが設けられ、この屈曲部は、
バルジピストン１２の外面中央部に設けられた幅広の環
状凹部１２ａの範囲内で前後にスライド可能とされてい
る。In Fig. 1, 1 is a cast iron pipe 2 with a nominal diameter of 100 m, for example.
The socket 3 formed at the end of the socket 3 is a thin stainless steel material such as stainless steel foil having a thickness of 0.3 mm, and the reference numeral 10 is for compressing a rubber material used when lining the socket 1 with the stainless steel foil 2. First, the rubber material compression jig IO will be explained. This rubber material compression jig lO is a hydraulic cylinder 11
A hollow cylindrical bulge piston 12 is attached to the tip of the rod lla.
is assembled, and a holder shaft 1 extending from inside the bulge piston 12 forward (in the direction of protrusion of the rod lla of the hydraulic cylinder 11) is mounted at a precise position of the bulge piston 12.
3 is coaxially attached so as to be freely movable back and forth, and is prevented from protruding forward beyond a predetermined position by a flange 13a formed at the center in the longitudinal direction. A thick-walled annular bulge rubber 14 disposed in front of the bulge piston 12 and made of soft rubber with a hardness of 40'', for example, is fitted onto a portion of the holder shaft 13 extending forward. A holding flange member 15 having a substantially truncated conical shape disposed at the front and widening at the rear side is fitted and fixed on the outside.The front outer peripheral surface of the bulge piston 12 and the bulge rubber 1
The cylindrical slide case 16 is allowed to slide back and forth along the outer circumferential surfaces of the bulge piston 12 and the bulge rubber 14. The front part of the slide case 16 is provided with a flange part 16a extending outward so as to be able to come into contact with the end surface of the socket 1, and the rear part of the slide case 16 is provided with a bent part 16b extending inward. provided, and this bending part is
The bulge piston 12 can be slid back and forth within a wide annular recess 12a provided at the center of the outer surface thereof.
次に、受口１にステンレス材としてのステンレス箔３を
内張する方法について説明する。まず。Next, a method of lining the socket 1 with stainless steel foil 3 as a stainless steel material will be explained. first.
外周面に予め接着剤が塗布されている筒状のステンレス
箔３を鋳鉄管２の受口１内へ挿入する０次に、ゴム材圧
縮用治具ｌＯの先端を、押さえフランジ部材１５がステ
ンレス箔３を介して受口１の奥部に当接するまで挿入し
、これによりバルジゴム１４の前方側、適当部分も、ス
テンレス箔３が配設された受口１内に挿入され、かつス
ライドケース１６の鍔部１６ａが受口１の端面に当接さ
れる。この状態で油圧シリンダ１１を作動させてロッド
ｌｌａを前進させると、第２図に示すように、バルジピ
ストン１２が、バルジゴム１４を後方から例えば５５ト
ンの力で押圧しながら前進する一方、バルジゴム１４の
前方位置にある押さえフランジ部材１５はその後部が受
口１の奥部に当接した状態であるため移動せず、これに
よりバルジゴム１４は圧縮変形し、ステンレス箔３を介
して受口１の内周面に隙間なく合うまで外向きに張出す
、この−、押さえフランジ部１材１５が受口１の奥部に
当接しているため、バルジゴム１４が鋳造管２の直管部
にまで流れることはない。A cylindrical stainless steel foil 3 whose outer circumferential surface has been coated with adhesive in advance is inserted into the socket 1 of the cast iron pipe 2.Next, press the tip of the rubber compression jig lO so that the flange member 15 is made of stainless steel. It is inserted through the foil 3 until it abuts the inner part of the socket 1, and as a result, the appropriate front side of the bulge rubber 14 is also inserted into the socket 1 where the stainless steel foil 3 is disposed, and the slide case 16 The flange portion 16a is brought into contact with the end surface of the socket 1. When the hydraulic cylinder 11 is operated in this state to move the rod lla forward, the bulge piston 12 moves forward while pressing the bulge rubber 14 from behind with a force of 55 tons, as shown in FIG. The holding flange member 15 located in the front position does not move because its rear part is in contact with the deep part of the socket 1, and as a result, the bulge rubber 14 is compressed and deformed, and the flange member 15 is pressed against the socket 1 through the stainless steel foil 3. Since the holding flange part 1 material 15, which extends outward until it fits the inner peripheral surface without any gap, is in contact with the deep part of the socket 1, the bulge rubber 14 flows to the straight pipe part of the cast pipe 2. Never.
また、バルジゴム１４の外向きの張出しに伴ってスライ
ドケース１６は後方にスライドする。したがって、バル
ジゴム１４の外向きの張出しにより、外面側に接着剤が
塗布されたステンレスｉ３は受口１の内周面に押圧され
て隅々まで圧着される。なお、この後は、油圧シリンダ
１１のロッドＬｌａを後退させてゴム材圧縮用治具ｌＯ
を受口１より外し、受口１の端部よりはみ出たステンレ
ス箔は切って取り除く。Further, as the bulge rubber 14 extends outward, the slide case 16 slides rearward. Therefore, due to the outward protrusion of the bulge rubber 14, the stainless steel i3 whose outer surface is coated with adhesive is pressed against the inner circumferential surface of the socket 1 and is crimped to every corner. After this, the rod Lla of the hydraulic cylinder 11 is moved back and the rubber material compression jig lO is moved back.
Remove the stainless steel foil from the socket 1, and cut off the stainless steel foil that protrudes from the edge of the socket 1.
なお、管の胴部内周面へのステンレス材の内張りは上記
作業の前後に適宜行えばよい。Note that lining the inner circumferential surface of the body of the tube with a stainless steel material may be done as appropriate before or after the above operation.
発明の効果
以上のように本発明によれば、直管の内面に液体やゴム
により圧力をかけて複雑な形状の管を形成する従来のバ
ルジ加工法を応用して管の受口の内周面にステンレス箔
の内張を行うようにしたので、受口の内周面が複雑な形
状であっても確実にステンレス材を内張することができ
て通水時の赤水の発生を防止でき、浄水場で高度処理さ
れた水を、その水質を低下させることなく供給可能であ
る。しかも、受口の内周面形状の変化に対しても同一の
ゴム材圧縮用治具を用いることができてコストの低減化
が図れる。Effects of the Invention As described above, according to the present invention, the inner periphery of the pipe socket is formed by applying the conventional bulge processing method, which applies pressure with liquid or rubber to the inner surface of a straight pipe to form a complex-shaped pipe. Since the surface is lined with stainless steel foil, even if the inner peripheral surface of the socket has a complicated shape, it can be reliably lined with stainless steel material and prevent the generation of red water when water is passed through. , water that has been highly treated at a water purification plant can be supplied without degrading the quality of the water. Moreover, the same rubber material compression jig can be used even when the shape of the inner circumferential surface of the socket changes, thereby reducing costs.
第１図および第２図はそれぞれ本発明の一実施例に係る
受口のステンレス材内張方法の工程を示す概略断面図で
ある。
１・・・受口、２・・・鋳鉄管、３・・・ステンレス箔
、ｌＯ・・・ゴム材圧縮用治具、１１・・・油圧シリン
ダ、 １４・・・バルジゴム。FIGS. 1 and 2 are schematic cross-sectional views showing the steps of a stainless steel material lining method for a socket according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Socket, 2... Cast iron pipe, 3... Stainless steel foil, lO... Rubber material compression jig, 11... Hydraulic cylinder, 14... Bulge rubber.
Claims (1)
ライニング対象の管の受口内に挿入し、上記ステンレス
材の内周側に環状のゴム材を挿入配置し、ゴム材圧縮用
治具により上記ゴム材を変形させて外向きに張出させ、
このゴム材で上記ステンレス材を上記受口の内周面に押
圧して圧着させることを特徴とする受口のステンレス材
内張方法。1. Insert a stainless steel material into the socket of the pipe to be lined with adhesive applied to its outer circumferential surface, insert an annular rubber material into the inner circumference of the stainless steel material, and use a jig for compressing the rubber material. to deform the rubber material and make it bulge outward,
A method for lining a socket with a stainless steel material, characterized in that the rubber material is used to press the stainless steel material onto the inner peripheral surface of the socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717689A JPH02309097A (en) | 1989-05-19 | 1989-05-19 | Stainless material lining method for socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717689A JPH02309097A (en) | 1989-05-19 | 1989-05-19 | Stainless material lining method for socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02309097A true JPH02309097A (en) | 1990-12-25 |
Family
ID=14953551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12717689A Pending JPH02309097A (en) | 1989-05-19 | 1989-05-19 | Stainless material lining method for socket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02309097A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62161430A (en) * | 1986-01-08 | 1987-07-17 | Mitsubishi Heavy Ind Ltd | Manufacture of clad pipe |
-
1989
- 1989-05-19 JP JP12717689A patent/JPH02309097A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62161430A (en) * | 1986-01-08 | 1987-07-17 | Mitsubishi Heavy Ind Ltd | Manufacture of clad pipe |
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