JPH0871483A - Method and device for lining flanged short pipe with resin - Google Patents
Method and device for lining flanged short pipe with resinInfo
- Publication number
- JPH0871483A JPH0871483A JP24180594A JP24180594A JPH0871483A JP H0871483 A JPH0871483 A JP H0871483A JP 24180594 A JP24180594 A JP 24180594A JP 24180594 A JP24180594 A JP 24180594A JP H0871483 A JPH0871483 A JP H0871483A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- resin
- adapter
- pipe
- lining
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、配管等に用いられるフ
ランジ付き短管の内面及びこれに続くフランジ面の所定
範囲に防食等の目的で樹脂ライニングを施す方法及び装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for applying a resin lining to a predetermined area of an inner surface of a flanged short pipe used for piping or the like and a flange surface subsequent thereto for the purpose of preventing corrosion.
【０００２】[0002]
【従来の技術】曲管などの短管の内面に粉体樹脂をライ
ニングする方法としては、特公昭54−44019号公報に開
示されているように、加熱された短管を粉体樹脂を収容
したタンクに連結した形で、該短管の軸を略鉛直面内に
配向させた姿勢で該鉛直面に直交する軸を中心に回転又
は揺動させながら、該管内に粉体樹脂を充満させ、所定
時間経過後、余剰の粉体をタンクに回収させることによ
り、所望の厚みのライニング皮膜を形成する方法が採ら
れていた。2. Description of the Related Art As a method of lining a powder resin on the inner surface of a short pipe such as a curved pipe, a heated short pipe contains a powder resin as disclosed in Japanese Patent Publication No. 54-44019. The tube is filled with the powdered resin while being rotated or swung about an axis perpendicular to the vertical plane in a posture in which the axis of the short tube is oriented in a substantially vertical plane in a form of being connected to the tank. The method of forming a lining film having a desired thickness by collecting excess powder in a tank after a predetermined time has been taken.
【０００３】上記公報には、フランジ面のライニングに
ついては特に言及されていないが、従来は、上記タンク
への連結をアダプタを介して行ない、また、連結部の反
対側のフランジ付き管端には蓋治具を取付け、この際、
アダプタ及び蓋治具がフランジ面の対象範囲外をマスキ
ングする構成により、所定範囲のフランジ面ライニング
を得ていた。Although the above publication does not particularly mention the lining of the flange surface, conventionally, the connection to the tank is performed through an adapter, and the flanged pipe end on the opposite side of the connection portion is conventionally. Attach the lid jig, at this time,
With the configuration in which the adapter and the lid jig mask the outside of the target area of the flange surface, the flange surface lining within a predetermined range is obtained.
【０００４】これにより、フランジ面のライニングは、
適用範囲は規制されるものの、膜厚が過剰に形成される
ため、後工程で研削を行なって所定の膜厚に仕上げてい
た。而して、上記後工程は、研削に先立って冷却或いは
物の移動を要する等、煩雑なものであり、また、樹脂の
融着したアダプタ及び蓋治具の手入れも容易でないこと
から、フランジ面にかかる工数の比率が高くなり、作業
能率面から改善が望まれていた。As a result, the lining of the flange surface is
Although the applicable range is regulated, since the film thickness is excessively formed, grinding was performed in a post process to finish to a predetermined film thickness. Therefore, the above-mentioned post-process is complicated, such as requiring cooling or moving the object prior to grinding, and it is not easy to care for the adapter and lid jig having the resin fused, so that the flange surface The ratio of man-hours required for the work was increased, and improvement was desired in terms of work efficiency.
【０００５】ここで、フランジ面の膜厚が管内面より大
となるのは、一般にフランジの厚さが管の肉厚の倍以上
あるため自然冷却されにくく、よって、樹脂の融着速度
ないしは融着しうる時間が大となることによる。因に、
ポリエチレン粉体ライニングにおける鋼材温度と樹脂融
着量の関係を図１に示す。The thickness of the flange surface is larger than that of the inner surface of the pipe. Generally, the thickness of the flange is more than twice the wall thickness of the pipe, which makes it difficult for the film to cool naturally. It's because the time that you can wear is great. By the way,
The relationship between the steel material temperature and the amount of resin fusion in polyethylene powder lining is shown in FIG.
【０００６】また、アダプタ等への樹脂の融着は、アダ
プタ等に接するフランジからの伝熱によるものである。
特に、アダプタ側においては、着脱の繰り返される蓋治
具と比べて昇温が大であり、更には、前記粉体タンクか
らの粉体樹脂の直撃によって融着が促進されることか
ら、上述の諸問題が顕著に生じていた。The fusion of the resin to the adapter or the like is due to the heat transfer from the flange in contact with the adapter or the like.
In particular, on the adapter side, the temperature rise is larger than that of a lid jig that is repeatedly attached and detached, and further, fusion is promoted by direct impact of the powder resin from the powder tank. Problems were prominent.
【０００７】その対策として、離型剤を適用することが
考えられるが、これでは特にアダプタへの樹脂融着が防
止できず、また、フランジからの伝熱を抑制するために
断熱材を介在させる試みもなされたが、アダプタ等への
樹脂融着は低減したものの、フランジ面膜厚の調整手段
とはなりえず、更には、断熱材への樹脂融着という新た
な問題も発生した。As a countermeasure, it is possible to apply a release agent, but this cannot prevent the resin fusion to the adapter in particular, and interposes a heat insulating material to suppress heat transfer from the flange. Attempts have been made, but although the resin fusion to the adapter and the like has been reduced, it cannot serve as a means for adjusting the flange surface thickness, and a new problem of resin fusion to the heat insulating material has occurred.
【０００８】[0008]
【発明が解決しようとする課題】本発明は上述のような
従来技術に鑑み、フランジを有する短管を樹脂タンクに
連結して、その内面及びフランジ面に粉体樹脂をライニ
ングする方法において、従来の諸問題を解決し、特に、
ライニング施工のままで所定膜厚の平坦なフランジ面ラ
イニングを得られるライニング方法及びそのための装置
を提供することをその課題とするものである。In view of the above-mentioned prior art, the present invention provides a method of connecting a short pipe having a flange to a resin tank and lining the inner surface and the flange surface with a powdered resin. To solve the problems of
It is an object of the present invention to provide a lining method and an apparatus therefor which can obtain a flat flange surface lining having a predetermined film thickness as it is.
【０００９】[0009]
【課題を解決するための手段】本発明は上記課題を解決
することを目的としてなされたもので、その方法の構成
は、少なくとも一端にフランジを有する短管を適宜温度
に加熱し、フランジの付いた管端を、フランジ面のライ
ニング範囲を規制できるアダプタを介して粉体樹脂を収
容したタンクに連結し、他方の管端は適宜閉鎖された状
態で、上記連結体を適宜に回転ないし揺動させることに
よって、粉体樹脂を短管内に移動させて管内面及びこれ
に続くフランジ面の所定範囲に樹脂を融着成膜させ、こ
の後、余剰の粉体をタンクに回収させる工程から成るフ
ランジ付き短管の樹脂ライニング方法において、前記ア
ダプタに強制冷却手段を配し、該冷却手段を時宜作動さ
せることによって、アダプタの昇温を防止すると共に、
隣接するフランジ面の温度の時間経過を調整し、更に、
アダプタの内周側に環状の庇を設けて、フランジ面に対
するタンク内粉体樹脂の直撃を遮るようにしたことを特
徴とするものであり、また、装置の構成は、粉体樹脂を
収容するタンクと、シャッタを介して該タンクに接続さ
れた管体連結用のアダプタとを、前記タンクの軸が略鉛
直面内に配向させる姿勢で枠体に支持させ、該枠体を上
記鉛直面に直交する軸を中心に回転ないしは揺動させ得
るよう構成されたフランジ付き短管用樹脂ライニング装
置において、前記アダプタに通水路を内設すると共に内
周側に環状の庇を設け、前記枠体に支持させる形で付設
した水タンクと冷却器とポンプとを有する冷却水供給系
を上記アダプタ内通水路に循環接続し、更に、上記冷却
機及びポンプをスリップリングを介して前記回転枠体の
外から間歇作動制御することからなる構成を付加したこ
とを特徴とするものである。SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and the structure of the method is to heat a short pipe having a flange at least at one end to an appropriate temperature to attach the flange. The pipe end is connected to the tank containing the powdered resin through an adapter capable of restricting the lining range of the flange surface, and the other pipe end is appropriately closed, and the connected body is appropriately rotated or rocked. By moving the powdered resin into the short pipe, the resin is fusion-deposited on the inner surface of the pipe and the predetermined area of the flange surface that follows it, and then the excess powder is collected in the tank. In the resin lining method of the attached short pipe, the adapter is provided with a forced cooling means, and the cooling means is operated in a timely manner to prevent the temperature rise of the adapter,
Adjust the temperature of the adjacent flange surface over time, and
The adapter is characterized in that an annular eave is provided on the inner peripheral side of the adapter so as to block the direct impact of the powder resin in the tank on the flange surface. Further, the configuration of the device is such that the powder resin is accommodated. A tank and an adapter for connecting a tubular body connected to the tank via a shutter are supported on a frame body in a posture in which the axis of the tank is oriented in a substantially vertical plane, and the frame body is supported on the vertical plane. In a resin lining device for a short pipe with a flange configured so as to be able to rotate or swing around an axis orthogonal to each other, a water passage is internally provided in the adapter, and an annular eave is provided on the inner peripheral side, and the resin is supported by the frame body. A cooling water supply system having a water tank, a cooler, and a pump additionally attached in a circulating manner is circulatively connected to the water passage in the adapter, and further, the cooler and the pump are provided from outside the rotary frame through a slip ring. Intermittent activation It is characterized in that the adding arrangement consisting in.
【００１０】而して、上記の方法の発明における庇の形
状は、それとフランジ面との間に形成される間隙が中心
に向かって広がる中高状となるように設定すると好まし
い効果が得られる。Therefore, in the invention of the above method, the shape of the eaves is preferably set so that the gap formed between the eaves and the flange surface is a middle height which widens toward the center.
【００１１】また、上記の連結部以外の開口端にもフラ
ンジを有する短管の該フランジ付き端部をフランジ面の
ライニング範囲を規制できる蓋治具で閉鎖し、上記方法
により樹脂ライニングを施す際、蓋治具のフランジと接
する面に環状の通気路を設けて自然冷却を容易にするこ
とにより該蓋治具の昇温を防止するようにし、且つ、蓋
治具とフランジ面の間に形成される間隙が中心に向かっ
て広がる中高状となるように蓋治具の形状を設定すれ
ば、両側にフランジを有する短管の内面及びそれに続く
フランジ面に好ましい樹脂ライニングを施すことができ
る。In addition, when the flanged end of a short pipe having a flange at the open end other than the connecting portion is closed with a lid jig capable of regulating the lining range of the flange surface, and resin lining is performed by the above method. An annular air passage is provided on the surface of the lid jig in contact with the flange to facilitate natural cooling to prevent the lid jig from rising in temperature, and is formed between the lid jig and the flange surface. If the shape of the lid jig is set so that the formed gap has a middle-height shape that widens toward the center, a preferable resin lining can be applied to the inner surface of the short pipe having the flanges on both sides and the subsequent flange surface.
【００１２】更に、上記方法により樹脂ライニングを施
した後、短管をアダプタ等から取外し、未だ軟化状態に
あるフランジ面樹脂皮膜の表面に、ロ−ラがけ又は振動
平板の押接による平坦化仕上げを施せば、フランジ面に
平坦な樹脂皮膜を形成することができる。Further, after the resin lining is applied by the above method, the short pipe is removed from the adapter etc., and the surface of the resin film on the flange surface which is still softened is flattened by rolling or pressing a vibrating plate. By applying, it is possible to form a flat resin film on the flange surface.
【００１３】即ち、本発明の発明者等は、上記目的を達
成するために研究を重ねた結果、ライニング作業時にフ
ランジに取付けるアダプタ及び蓋治具の温度が樹脂の融
点より低い範囲では、それらに樹脂が融着しないことに
着目し、温度の上昇しやすいアダプタには冷却水の通路
を設けて適度に強制冷却するようにし、また、温度上昇
の比較的少ない蓋治具には通気路を設けて自然冷却が促
進されるようにすれば、アダプタ等そのものに必要な冷
却を施せるばかりでなく、隣接するフランジ面にも冷却
効果を及ぼし、フランジの温度の時間経過が調整される
ことにより、フランジに形成される膜厚増大を抑制でき
ること、及び、粉体樹脂が直撃的に接触するタンク側の
フランジについては、更に、上記直撃を庇により遮るよ
うにすればよいことを知得し、本発明を完成したのであ
る。That is, the inventors of the present invention have conducted researches to achieve the above object, and as a result, in the range where the temperature of the adapter and the lid jig attached to the flange during the lining work is lower than the melting point of the resin, Paying attention to the fact that the resin does not fuse, a cooling water passage is provided for the adapter that easily raises the temperature to forcibly cool it appropriately, and a ventilation passage is provided for the lid jig where the temperature rises relatively little. If natural cooling is promoted by not only providing the necessary cooling to the adapter itself, but also exerting a cooling effect on the adjacent flange surface and adjusting the temperature of the flange over time, For the flange on the tank side where the powder resin comes into direct contact, the above-mentioned direct hit may be blocked by the eaves. The become known, is of the present invention has been completed.
【００１４】本発明の対象とする短管として、少なくと
も片端にフランジを有する曲り管，Ｔ字管，短尺の直
管，或いは開口部にフランジを有する容器などを挙げる
ことができるが、主たる対象は両端にフランジが付いた
曲り管、及び各端にフランジが付いたＴ字管である。Examples of the short pipe to which the present invention is applied include a bent pipe having at least one end with a flange, a T-shaped pipe, a short straight pipe, or a container having a flange at the opening. It is a bent pipe with flanges on both ends and a T-tube with flanges on each end.
【００１５】以下、両端にフランジの付いた曲がり管を
例にとって、本発明の詳細を図により説明する。図１は
ライニング時における樹脂融着量と温度との関係を示す
図表、図２は本発明方法を実施するためにライニング装
置に管体を装着した状態の概念図、図３は本発明におけ
るアダプタ回りを示す断面図、図４は同じく蓋治具回り
を示す断面図、図５は本発明装置の構成を示す概略図、
図６はアダプタ回りの温度の推移状況を示す概念図であ
る。Hereinafter, the present invention will be described in detail with reference to the drawings by taking a bent pipe having flanges at both ends as an example. FIG. 1 is a diagram showing the relationship between the resin fusion amount and temperature during lining, FIG. 2 is a conceptual diagram of a state in which a pipe is mounted on a lining device for carrying out the method of the present invention, and FIG. 3 is an adapter of the present invention. FIG. 4 is a sectional view showing the surroundings, FIG. 4 is a sectional view showing the surroundings of the lid jig, and FIG. 5 is a schematic diagram showing the configuration of the device of the present invention.
FIG. 6 is a conceptual diagram showing the transition of the temperature around the adapter.
【００１６】図２，図５において、１はフランジ1a，1b
を有する曲り管、２はフランジ1aが装着されるアダプタ
であって、クランプ爪３により強固に緊締されており、
粉体樹脂を収容した樹脂タンク４に接続されている。2a
はフランジ1bに取付けた蓋治具、4aは樹脂タンク４の樹
脂給排バルブ、５は回転駆動軸、６は水タンク61，ファ
ンを備えたラジエ−タ62，給水ホ−ス63を備えた冷却器
である。In FIGS. 2 and 5, reference numeral 1 denotes flanges 1a and 1b.
The bent pipe 2 having the above is an adapter to which the flange 1a is attached, and is firmly tightened by the clamp claws 3,
It is connected to a resin tank 4 containing a powder resin. 2a
Is a lid jig attached to the flange 1b, 4a is a resin supply / discharge valve for the resin tank 4, 5 is a rotary drive shaft, 6 is a water tank 61, a radiator 62 with a fan, and a water supply hose 63. It is a cooler.
【００１７】而して、アダプタ２は図３に示すように、
次のように構成され、フランジ1aに装着される。即ち、
フランジ1aのライニング皮膜を形成する部分11を覆う形
の庇21aを形成したリング状をなし、その内部に冷却水
通路21bを設けると共に、該通路21bに冷却水を送り込む
ホ−スジョイント21cを設けてあり、ライニング作業中
はホ−スジョイント21cに給水ホ−ス63を連結し、ポン
プにより冷却水をその通路21bに送り込んで、アダプタ
２の温度上昇を抑制するのである。10〜30リットル／mi
nの循環通水により水温は50℃以下に維持できる。Thus, the adapter 2 is, as shown in FIG.
It is configured as follows and is attached to the flange 1a. That is,
The flange 1a has a ring-shaped eave 21a that covers the portion 11 forming the lining film, a cooling water passage 21b is provided therein, and a hose joint 21c for feeding cooling water to the passage 21b is provided. During the lining work, the water supply hose 63 is connected to the hose joint 21c and the cooling water is sent to the passage 21b by the pump to suppress the temperature rise of the adapter 2. 10-30 liters / mi
The water temperature can be maintained below 50 ℃ by circulating water.
【００１８】こうすることにより、アダプタ２の温度は
100℃以下に維持できるので、樹脂の融着は皆無となる
が、このような通水を当初から連続して行なうと、フラ
ンジ1a面の温度が当初から樹脂の接着に必要な温度を下
回り、接着性の劣る皮膜となる。そこで、上記ポンプの
作動タイミングを制御し、フランジ面の温度を好適に推
移させるものである。このような温度の推移状況を図６
に概念的に示す。上記フランジ面の温度の調整とアダプ
タに設けた庇21aによる粉体直撃防止作用とが相俟って
フランジ1aに所期の膜厚の平坦なライニング皮膜12が形
成される。即ち、フランジ1aからアダプタ２に熱が伝達
されるのを防止できるので、アダプタ２への樹脂の付着
は殆どなくなり、フランジ1aには上記した好適な温度経
過により所期の膜厚の平坦なライニング皮膜11が形成さ
れるのである。尚、庇21aの形状を、該庇21aとフランジ
1a面との間に形成される間隙が中心に向かって広がる中
高状21dとなるようにすることにより、粉体樹脂の出入
りが良好となり、欠陥のない皮膜12を形成できる。By doing so, the temperature of the adapter 2 is
Since it can be maintained at 100 ℃ or less, fusion of resin is completely eliminated, but if such water flow is continuously performed from the beginning, the temperature of the flange 1a surface will be lower than the temperature required for resin adhesion from the beginning, The film has poor adhesion. Therefore, the operation timing of the pump is controlled to appropriately change the temperature of the flange surface. Figure 6 shows such a temperature transition.
The concept is shown in. The flat lining film 12 having a desired film thickness is formed on the flange 1a in combination with the adjustment of the temperature of the flange surface and the effect of preventing the powder from being directly hit by the eaves 21a provided on the adapter. That is, since it is possible to prevent the heat from being transferred from the flange 1a to the adapter 2, the adhesion of the resin to the adapter 2 is almost eliminated, and the flange 1a has a flat lining having a desired film thickness due to the above-mentioned suitable temperature passage. The film 11 is formed. The shape of the eaves 21a is the same as the eaves 21a and the flange.
By setting the gap formed between the surface 1a and the surface 1a to be a middle-height shape 21d that widens toward the center, the powder resin comes in and out satisfactorily, and the defect-free film 12 can be formed.
【００１９】一方、フランジ1bに取り付ける蓋治具2a
は、図４に示すように、前記アダプタ２と同様、フラン
ジ1bのライニング皮膜を形成する部分13に隙間を設けた
リング状をなし、フランジ1bとの間の間隙が中心に向か
って広がる中高状22aとなるように形成し、フランジ1b
に当接する部分には、放熱を良好にするための環状の凹
部22bが設けられている。尚、枝管がある場合、そのフ
ランジに取付ける蓋治具も上記の蓋治具2aと同じであ
る。On the other hand, a lid jig 2a attached to the flange 1b
As shown in FIG. 4, like the adapter 2, it has a ring shape in which a gap is formed in the portion 13 of the flange 1b where the lining film is formed, and the gap between the flange 1b and the flange 1b expands toward the center. 22a and flange 1b
An annular concave portion 22b for improving heat dissipation is provided in the portion that abuts against. If there is a branch pipe, the lid jig attached to the flange is also the same as the lid jig 2a.
【００２０】蓋治具2aを上記のように形成することによ
り、蓋治具2aの温度が樹脂の融点以上に昇温しなくな
り、蓋治具2aへの樹脂の付着は防止されるが、蓋治具2a
の内面にクロムめっきなどの処理を施せば、万全なもの
となる。蓋治具2aの自然冷却が上記のように促進される
結果、隣接したフランジ面1bにも冷却効果が及び、フラ
ンジ面温度が好適となって、所期の膜厚及び平滑性のラ
イニング皮膜14を形成できるのである。ここで、フラン
ジ面温度の推移の調整は熱特性等を考慮し、或いは実験
を加えた蓋治具の設計によって行ない得る。By forming the lid jig 2a as described above, the temperature of the lid jig 2a does not rise above the melting point of the resin, and the resin is prevented from adhering to the lid jig 2a. Jig 2a
If the inner surface of the is plated with chrome, it will be perfect. As a result of the natural cooling of the lid jig 2a being promoted as described above, the adjacent flange surface 1b also has a cooling effect and the flange surface temperature becomes suitable, and the lining film 14 having the desired film thickness and smoothness is obtained. Can be formed. Here, the transition of the flange surface temperature can be adjusted by considering the thermal characteristics or the like, or by designing a lid jig that has been subjected to experiments.
【００２１】上述のように、蓋治具2aには冷却水通路を
設けることなしに必要な温度調整ができたため、脱着の
頻繁な蓋治具にホ−スを接続して作業性が阻害されるこ
ともない。As described above, since the required temperature can be adjusted without providing the cooling water passage in the lid jig 2a, the workability is hindered by connecting the hose to the lid jig which is frequently detached and attached. It never happens.
【００２２】[0022]
【作用】本発明は上述の通りであって、粉体樹脂タンク
に装着するアダプタに冷却手段を設けて作動タイミング
を適切なものとし、蓋治具には通水路を設けて放熱量が
大きくなるようにし、少なくとも粉体樹脂の充填中から
それら治具を取り外す工程間に亘り、それら治具を溶融
樹脂が付着しない温度に保持するようにしたから、ライ
ニング作業において、アダプタにも蓋治具にも溶融樹脂
が付着しない。The present invention is as described above. The adapter mounted on the powder resin tank is provided with a cooling means for proper operation timing, and the lid jig is provided with a water passage to increase the amount of heat radiation. In this way, the jigs are kept at a temperature at which molten resin does not adhere at least during the process of removing the jigs during the filling of the powdered resin. However, the molten resin does not adhere.
【００２３】また、上記アダプタ及び蓋治具の冷却効果
が対応するフランジ面に及んで、その温度の時間経過を
好適化することにより、フランジ面皮膜の膜厚がライニ
ングのままで所定値になるので、従来方法における煩雑
な後処理工程を必要とせず、所期の膜厚の平坦な皮膜を
形成することができ、後工程での仕上げ加工工程を従来
のそれより大幅に省略できるので、工費の大幅な低減を
期することが可能となった。Further, the cooling effect of the adapter and the lid jig reaches the corresponding flange surface, and by optimizing the lapse of time of the temperature, the film thickness of the flange surface film becomes a predetermined value without changing the lining. Therefore, it is possible to form a flat film with a desired film thickness without the need for complicated post-treatment steps in the conventional method, and the finishing process step in the post-steps can be largely omitted as compared with the conventional method. It has become possible to achieve a significant reduction in
【００２４】[0024]
【実施例】次に、本発明の実施例について説明する。１
０Kg／cm2フランジ付き３００Ａ×９０°ロングエルボ
管内面にポリエチレン粉体樹脂を以下の工程によりライ
ニングした。Next, an embodiment of the present invention will be described. 1
Polyethylene powder resin was lined on the inner surface of a 300A × 90 ° long elbow tube with a 0 kg / cm 2 flange by the following steps.
【００２５】（１）管体１の一端に設けた３００Ａ×１
０Kg／cm2フランジ1aに対応するフランジ固定用アダプ
タ２を回転揺動装置の樹脂供給タンク４の口に装着す
る。 （２）通水循環用ホ−ス63を装着する。 （３）管体１を約300℃に加熱する電気炉から取り出
し、アダプタ２に管体１のフランジ1aをセットし、該フ
ランジ1aを油圧クランプ爪３で固定させる。 （４）他方のフランジ1b面には、樹脂逃げ防止兼被覆用
の帽体状の蓋治具2aを装着し、離脱しないようにボルト
等で締め付ける。 （５）回転揺動装置の自動作動スイッチをONにし、自動
作動と同時にアダプタ通水冷却用水循環冷却器６も始動
し、所定のON，OFF動作を始める。 （６）自動運転が所定時間経過して停止した後、フラン
ジ1aを固定したクランプ爪３を緩めて管体を離脱させ、
冷却場へ移動する。 （７）冷却場においてフランジ被覆面12，14に平面振動
装置を手持ちにより５〜６秒間押し付け、面の平坦性を
出した後、放冷により被覆層が完全溶融するまで保持す
る。 （８）完全溶融確認後、管体を外面から水冷し、被覆層
を固化させる。 （９）固化皮膜となった管体を冷却場から検査場へ移動
させる。 （10）検査場において所定の検査を行う。(1) 300A × 1 provided at one end of the tubular body 1
The flange fixing adapter 2 corresponding to the 0 kg / cm 2 flange 1a is attached to the opening of the resin supply tank 4 of the rotary rocking device. (2) Install the water circulation hose 63. (3) The tube 1 is taken out of the electric furnace heated to about 300 ° C., the flange 1a of the tube 1 is set on the adapter 2, and the flange 1a is fixed by the hydraulic clamp claw 3. (4) A cap jig-like lid jig 2a for preventing resin escape and covering is mounted on the surface of the other flange 1b, and is tightened with bolts or the like so as not to come off. (5) The automatic operation switch of the rotary oscillating device is turned on, and at the same time as the automatic operation, the adapter water cooling water circulation cooler 6 is also started to start a predetermined on / off operation. (6) After the automatic operation has stopped for a predetermined time, loosen the clamp claws 3 fixing the flange 1a to separate the tubular body,
Move to the cooling area. (7) In the cooling field, the planar vibrating device is pressed against the flange coated surfaces 12 and 14 by hand for 5 to 6 seconds to make the surfaces flat, and then allowed to cool until the coating layers are completely melted. (8) After confirming complete melting, the tube is water-cooled from the outer surface to solidify the coating layer. (9) The solidified film tube is moved from the cooling field to the inspection field. (10) Perform prescribed inspections at the inspection site.
【００２６】而して、上記の検査結果は、短管１の内面
及びそれに続くフランジ面の所要部分に所定膜厚で平坦
性の良好なライニング皮膜の形成されているのが、確認
された。From the above inspection results, it was confirmed that a lining film having a predetermined film thickness and good flatness was formed on the inner surface of the short pipe 1 and the required portion of the subsequent flange surface.
【００２７】[0027]
【発明の効果】本発明は上述のとおりであるから、少な
くとも片端にフランジを有する曲り管，Ｔ字管，短尺の
直管，或いは開口部にフランジを有する容器、特に両端
にフランジが付いた曲り管、及び各端にフランジが付い
たＴ字管等の内面及びそれに続くフランジ面の所要個所
に粉体樹脂によるライニング皮膜を形成する方法及びそ
のための装置として好適である。Since the present invention is as described above, a bent pipe having at least one end with a flange, a T-shaped pipe, a short straight pipe, or a container having a flange at its opening, particularly a bend having flanges at both ends It is suitable as a method for forming a lining film of a powder resin on an inner surface of a pipe, a T-shaped pipe having a flange at each end, and the like, followed by a flange surface, and an apparatus therefor.
【図１】ライニング時における樹脂融着量と温度との関
係を示す図表。FIG. 1 is a chart showing a relationship between a resin fusion amount and a temperature during lining.
【図２】本発明方法を実施するためにライニング装置に
管体を装着した状態の概念図。FIG. 2 is a conceptual diagram showing a state where a pipe body is attached to a lining device for carrying out the method of the present invention.
【図３】本発明におけるアダプタ回りを示す断面図。FIG. 3 is a cross-sectional view showing the periphery of the adapter in the present invention.
【図４】本発明における蓋治具回りを示す断面図。FIG. 4 is a cross-sectional view showing the vicinity of a lid jig according to the present invention.
【図５】本発明装置の構成を示す概略図。FIG. 5 is a schematic diagram showing the configuration of the device of the present invention.
【図６】アダプタの温度の推移状況を示す概念図。FIG. 6 is a conceptual diagram showing a transition state of the temperature of the adapter.
１ 管体 1a，1b フランジ ２ アダプタ 21a 冷却水通路 21b ホ−スジョイント 2a 蓋治具 22a 中高状 22b 凹部 ３ クランプ爪 ４ 樹脂タンク 4a 樹脂給排バルブ ５ 回転駆動軸 ６ 冷却器 11 フランジ1aのライニング皮膜を形成すべき部 12 ライニング皮膜 13 フランジ1bのライニング皮膜を形成すべき部 14 ライニング皮膜 1 Pipe 1a, 1b Flange 2 Adapter 21a Cooling water passage 21b Hoses joint 2a Lid jig 22a Middle height 22b Recess 3 Clamp claw 4 Resin tank 4a Resin feed / discharge valve 5 Rotation drive shaft 6 Cooler 11 Flange 1a lining Area where the film is to be formed 12 Lining film 13 Area where the lining film of flange 1b is to be formed 14 Lining film
Claims (5)
を適宜温度に加熱し、フランジの付いた管端を、フラン
ジ面のライニング範囲を規制できるアダプタを介して粉
体樹脂を収容したタンクに連結し、他方の管端は適宜閉
鎖された状態で、上記連結体を適宜に回転ないし揺動さ
せることによって、粉体樹脂を短管内に移動させて管内
面及びこれに続くフランジ面の所定範囲に樹脂を融着成
膜させ、この後、余剰の粉体をタンクに回収させる工程
から成るフランジ付き短管の樹脂ライニング方法におい
て、前記アダプタに強制冷却手段を配し、該冷却手段を
時宜作動させることによって、アダプタの昇温を防止す
ると共に、隣接するフランジ面の温度の時間経過を調整
し、更に、アダプタの内周側に環状の庇を設けて、フラ
ンジ面に対するタンク内粉体樹脂の直撃を遮るようにし
たことを特徴とするフランジ付き短管の樹脂ライニング
方法。1. A short pipe having a flange on at least one end is heated to an appropriate temperature, and the pipe end with the flange is connected to a tank containing powder resin through an adapter capable of regulating the lining range of the flange surface. , The other pipe end is appropriately closed, and by appropriately rotating or rocking the above-mentioned connecting body, the powder resin is moved into the short pipe to make the resin fall within a predetermined range of the pipe inner surface and the subsequent flange surface. In a resin lining method for a short pipe with a flange, which comprises a step of fusion-bonding and forming a film, and then collecting excess powder in a tank, forcibly cooling means is arranged on the adapter, and the cooling means is operated from time to time. This prevents the temperature of the adapter from rising and adjusts the temperature of the adjacent flange surface over time.Furthermore, an annular visor is provided on the inner peripheral side of the adapter to prevent the flange surface from rising. A resin lining method for a short pipe with a flange, characterized in that the direct impact of the powder resin inside the cylinder is blocked.
隙が中心部に向かって広がる中高状となるよう庇の形状
を設定した請求項１に記載の方法。2. The method according to claim 1, wherein the shape of the eaves is set so that the gap formed between the eaves and the flange surface has a middle-height shape that widens toward the center.
有する短管の連結部以外のフランジ付き端部を、フラン
ジ面のライニング範囲を規制できる蓋治具により閉鎖
し、請求項１又は２の方法を適用して管内面及びこれに
続く各端フランジ面の所定範囲に樹脂ライニングを施す
に際して、上記蓋治具のフランジと接する面に環状の通
気路を設け自然冷却することによって蓋治具の昇温を防
止し、更に、蓋治具とフランジ面の間に形成される間隙
が中心に向かって広がる中高状となるよう蓋治具の形状
を設定したことを特徴とするフランジ付き短管の樹脂ラ
イニング方法。3. A flanged end portion other than the connecting portion of the short pipe having a flange at an opening end other than the connecting portion is closed by a lid jig capable of restricting the lining range of the flange surface. When a resin lining is applied to the pipe inner surface and a predetermined range of each end flange surface following the method described above, an annular ventilation passage is provided on the surface of the lid jig in contact with the flange to naturally cool the lid jig. The flanged short pipe is characterized in that the shape of the lid jig is set such that the temperature rise of the lid jig is prevented and the gap formed between the lid jig and the flange surface widens toward the center. Resin lining method.
た後、前記短管をアダプタ等から取外し、未だ軟化状態
にあるフランジ面樹脂皮膜の表面に、ロ−ラ−がけ又は
振動平板の押接による平坦化仕上げを施すことを特徴と
するフランジ付き短管の樹脂ライニング方法。4. After carrying out the method according to any one of claims 1 to 3, the short pipe is removed from an adapter or the like, and a roller covering or a vibrating flat plate is formed on the surface of the flange-face resin film which is still in a softened state. A resin lining method for a short pipe with a flange, characterized in that a flattening finish is applied by pressing.
を介して該タンクに接続された管体連結用のアダプタと
を、枠体に支持させ、該枠体を適宜に回転ないしは揺動
させ得るよう構成されたフランジ付き短管用樹脂ライニ
ング装置において、前記アダプタに通水路を内設すると
共に内周側に環状の庇を設け、前記枠体に支持させる形
で付設した水タンクと冷却器とポンプとを有する冷却水
供給系を上記アダプタ内通水路に循環接続し、更に、上
記冷却器及びポンプをスリップリングを介して前記回転
枠体の外から間歇作動制御することからなる構成を付加
したことを特徴とするフランジ付き短管の樹脂ライニン
グ装置。5. A tank containing a powdered resin and an adapter for connecting a pipe body connected to the tank via a shutter are supported by a frame body, and the frame body is appropriately rotated or rocked. In the flanged short pipe resin lining device configured to obtain, a water tank and a cooler, which are provided in such a manner that a water passage is provided inside the adapter and an annular eave is provided on the inner peripheral side, and the frame body supports the water tank. A cooling water supply system having a pump is circulatively connected to the water passage in the adapter, and the cooling device and the pump are intermittently controlled from the outside of the rotary frame through a slip ring. A short tube resin lining device with a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24180594A JPH0871483A (en) | 1994-09-09 | 1994-09-09 | Method and device for lining flanged short pipe with resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24180594A JPH0871483A (en) | 1994-09-09 | 1994-09-09 | Method and device for lining flanged short pipe with resin |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003427136A Division JP2004154776A (en) | 2003-12-24 | 2003-12-24 | Method for lining flanged short pipe with resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0871483A true JPH0871483A (en) | 1996-03-19 |
Family
ID=17079776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24180594A Pending JPH0871483A (en) | 1994-09-09 | 1994-09-09 | Method and device for lining flanged short pipe with resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0871483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160058396A (en) * | 2014-11-17 | 2016-05-25 | 주식회사 명진티에스알 | Apparatus for lining internal surface of fitting pipe |
| RU173205U1 (en) * | 2017-05-31 | 2017-08-16 | Общество с ограниченной ответственностью "Научно-производственное объединение "Композит" | GUM-DISTRIBUTED TANK |
-
1994
- 1994-09-09 JP JP24180594A patent/JPH0871483A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160058396A (en) * | 2014-11-17 | 2016-05-25 | 주식회사 명진티에스알 | Apparatus for lining internal surface of fitting pipe |
| RU173205U1 (en) * | 2017-05-31 | 2017-08-16 | Общество с ограниченной ответственностью "Научно-производственное объединение "Композит" | GUM-DISTRIBUTED TANK |
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