JPS6031857A - Narrow mouth container having resing lining formed to its inner surface and its preparation - Google Patents
Narrow mouth container having resing lining formed to its inner surface and its preparationInfo
- Publication number
- JPS6031857A JPS6031857A JP14074383A JP14074383A JPS6031857A JP S6031857 A JPS6031857 A JP S6031857A JP 14074383 A JP14074383 A JP 14074383A JP 14074383 A JP14074383 A JP 14074383A JP S6031857 A JPS6031857 A JP S6031857A
- Authority
- JP
- Japan
- Prior art keywords
- container
- cylinder
- film
- resin
- powder
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims description 53
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 24
- 238000000576 coating method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007610 electrostatic coating method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は内面に樹脂ライニングを施した金属容器及びそ
の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal container whose inner surface is lined with a resin and a method for manufacturing the same.
金属の細目容器としては、圧力タンク、ボンベ、ドラム
罐等があり、その中ではボンベがよく知られている。ボ
ンベの中には腐食性のあるガスや液体、或は純粋さを必
要とするガスや液体を充填するために耐食性の優れた高
級素材で作られたもの及び内面を耐食性のある皮膜で覆
ったものが知られている。ところが、高級素材例えばス
テンレス材等でボンベを製造したものは通常品の約１０
〜１５倍位の高価格となるという欠点がある。また、ボ
ンベ内面に施す皮膜は、ピンホールが無く半永久的にボ
ンベ内面素材と充填材との接触を完全に遮断する０、６
〜１．０Ｉｌｉ以上の厚みで内面素材と接着し、内外圧
力や衝撃に対し変彫、剥離が生じない強度を持ち、充填
材に浸されない物性が必要であるが、従来の内面被覆の
タール、エポキシ等の塗装類は溶剤で溶液としたものを
塗布、乾燥、硬化の繰り返し工程により膜厚みを形成し
ており、通常１工程には６時間位が必要で、最大形成厚
みは０．０７ＩＩ１１位でありそれ以上の厚みを１工程
で行なおうとすれば、タレ、気泡等の発生原因となる。Fine metal containers include pressure tanks, cylinders, drum cans, etc., of which cylinders are well known. The cylinders are filled with corrosive gases and liquids, or gases and liquids that require purity, so they are made of high-grade materials with excellent corrosion resistance, and the inner surface is covered with a corrosion-resistant film. something is known. However, cylinders made of high-quality materials such as stainless steel are about 10 times cheaper than regular products.
The disadvantage is that it is about 15 times more expensive. In addition, the coating applied to the inner surface of the cylinder has no pinholes and completely blocks contact between the inner surface material of the cylinder and the filling material semi-permanently.
It is necessary to adhere to the inner surface material with a thickness of ~1.0Ili or more, to have strength that will not cause deformation or peeling due to internal and external pressure or impact, and to have physical properties that will not be immersed in filler, but conventional inner surface coating tar, For coatings such as epoxy, the film thickness is formed through a repeated process of applying, drying, and curing a solution in a solvent, and each process usually takes about 6 hours, and the maximum thickness formed is about 0.07 II 11. If a thickness greater than that is attempted to be achieved in one step, sagging, bubbles, etc. may occur.
小口径出入口部しか有しないボンベ形状では、大気中発
散による乾燥、硬化時間が通常の物より遅いのは明らか
で、ピンホールのない必要厚みにするには多大の時間を
要し、しかも厚くなると衝撃等により皮膜剥離が生じる
ことがある。このような皮膜にかえて、金属等のメッキ
被覆が考えられるが、ボンベ内表面という形状では表面
研摩等の後処理が不可能でピンホールを無くすことはで
きない。ピンホールが１ケ所でもあると、その部分より
浸食が広がり皮膜剥離等が発生し腐食による破損や、純
粋性の悪化となってしまう。このように従来の被覆製品
は満足すべきものではなかった。It is clear that with a cylinder shape that only has a small-diameter entrance and exit, the drying and curing time due to atmospheric dispersion is slower than normal cylinders, and it takes a lot of time to achieve the required thickness without pinholes, and the thicker the cylinder Film peeling may occur due to impact, etc. Instead of such a film, a plated coating of metal or the like may be considered, but the inner surface of the cylinder cannot be subjected to post-treatment such as surface polishing, and pinholes cannot be eliminated. If there is even one pinhole, erosion will spread from that area, causing peeling of the film, resulting in damage due to corrosion and deterioration of purity. Thus, conventional coated products have not been satisfactory.
従って、本発明の第一の目的は、安価に製造でき、内面
に所定厚さの、かつピンホールのない耐食性の皮膜を備
えたボンベ等の細目容器を提供することにある。Accordingly, a first object of the present invention is to provide a fine container, such as a cylinder, which can be manufactured at low cost and has a corrosion-resistant coating of a predetermined thickness and no pinholes on its inner surface.
本発明になる細目容器は、内面全体にＰＥ。The fine container according to the present invention is made of PE on the entire inner surface.
ＰＰ、フッ素、ナイロン、エポキシ、塩ビ等の粉体樹脂
を付着溶融して形成した樹脂ライニング皮膜を有するこ
とを特徴とするもので、
■高級素材を使用せずとも従来素材内面に耐食性の被覆
を行うだけなので安価に製造できる、■膜厚みは自由に
変えることが可能でピンホールは発生しない、
■短時間に被膜形成が可能であり、かつ工数が少いため
、従来被覆形成品に比べ生産性が高い、■腐食等による
不純物混入がないため、詰め換え時の必要条件である洗
浄工程が不要となる、等の利点がある。It is characterized by having a resin lining film formed by adhering and melting powdered resin such as PP, fluorine, nylon, epoxy, and vinyl chloride. ■A corrosion-resistant coating can be applied to the inner surface of conventional materials without using high-grade materials. It can be manufactured at low cost because it only needs to be coated.■ Film thickness can be changed freely and pinholes do not occur. ■ Film can be formed in a short time and requires less man-hours, so it is more productive than conventional coated products. It has the following advantages: (1) There is no contamination with impurities due to corrosion, etc., so there is no need for a cleaning process, which is a necessary condition when refilling.
ところで、従来より物品の外面や大径の管類の内外面等
に粉体樹脂ライニングを施すことは知られており、その
方法としては、予熱した被覆物を、浮遊状粉体中に浸漬
し皮膜形成する流動浸漬法、粉体を静電的に被覆物に付
着させる静電塗装法、粉体を火災の中を通し半溶融状態
にして被覆物に吹付ける溶射法等があるが、いずれも、
口金と称される内径２０〜２５關の小口径の出入口部し
かないボンベ内面へのライニングには使用できない。Incidentally, it has been known to apply powder resin lining to the outer surface of articles and the inner and outer surfaces of large-diameter pipes, etc., and the method involves immersing a preheated coating in suspended powder. There is a fluidized dipping method that forms a film, an electrostatic coating method that electrostatically attaches the powder to the coating, and a thermal spraying method that passes the powder through a fire to a semi-molten state and sprays it onto the coating. too,
It cannot be used for lining the inner surface of a cylinder that has only a small opening/exit portion with an inner diameter of 20 to 25 mm, called a cap.
即ち、流動浸漬法ではボンベ内への粉体供給が不可能で
あり、静電塗装法や溶射法でもスプレィガンをボンベ内
へ挿入して内面全域に均一に粉体を吹付けることは実際
上不可能である。これらの他ニ、エルボ、ティー等の内
面被覆法として、被覆（３）
物中に粉体樹脂を一杯に充填し、一定時間被覆物を加熱
して内面近傍の樹脂を溶融付着させた後、過剰な樹脂を
排出する方法も知られている。しかしながら、この方法
をボンベ内面のライニングに使用しても満足な結果は得
られない。即ち、小口径の出入口部からボンベ内を一杯
に満すだけの粉体樹脂を供給するには極めて長時間を必
要とし、また、過剰な粉体の取出しには更に長時間を必
要とし不均一な皮膜厚みとなりかつ出入口部で粉詰まり
の危険もある。更には、粉体を充填したボンベを外部か
ら加熱する時に、ボンベの肉厚差により温度むらが生じ
、そのため溶融皮膜厚みに差が生じ満足な皮膜が確保さ
れない。このようにボンベ内面のライニングに、従来の
粉体樹脂ライニング方法は利用できない。In other words, it is impossible to supply the powder into the cylinder using the fluidized dipping method, and it is practically impossible to insert the spray gun into the cylinder and spray the powder uniformly over the entire inner surface even with the electrostatic coating method or thermal spraying method. It is possible. In addition to these methods, coating (3) is a method for coating the inner surfaces of elbows, tees, etc. After filling the object with powdered resin and heating the object for a certain period of time to melt and adhere the resin near the inner surface, Methods of draining excess resin are also known. However, the use of this method for lining the inner surface of cylinders does not give satisfactory results. In other words, it takes an extremely long time to supply enough powdered resin to fill the cylinder through the small-diameter entrance and exit, and it also takes an even longer time to take out the excess powder, resulting in non-uniformity. There is also a risk of powder clogging at the entrance and exit. Furthermore, when a cylinder filled with powder is heated from the outside, temperature unevenness occurs due to differences in the wall thickness of the cylinder, resulting in differences in the thickness of the molten coating, making it impossible to ensure a satisfactory coating. As described above, conventional powder resin lining methods cannot be used to line the inner surface of the cylinder.
従って、本発明の第二の目的は、ボンベの如き細目容器
内に均一な粉体樹脂ライニングを施すことのできる工程
を含んだ細目容器の製造方法を提供することである。Accordingly, a second object of the present invention is to provide a method for manufacturing a fine container such as a cylinder, which includes a step of uniformly lining the fine container with a powder resin.
本発明になる製造方法は、内面にライニングを（４）
施されるべき細目容器を準備し、該容器の全体を均一に
加熱し、容器内面に所定厚みのライニングを施すに必要
な粉体樹脂を前記細口容器内に供給し、容器内部の粉体
が容器内面の全域に接触するよう逐次容器の姿勢を変え
ることを特徴とする。The manufacturing method of the present invention involves preparing a fine container whose inner surface is to be lined (4), uniformly heating the entire container, and applying powder resin necessary to line the inner surface of the container with a predetermined thickness. is supplied into the narrow-mouthed container, and the attitude of the container is sequentially changed so that the powder inside the container comes into contact with the entire inner surface of the container.
上記方法によれば、細目容器内に供給する粉体樹脂量は
所定厚みのライニング皮膜に必要な量だけであり、具体
的には容器内容積の約１０〜２０％程度であるので、敏
速に供給でき、かつ余剰の樹脂を取り出す必要がないの
で粉詰りか生じることもない。容器はあらかじめ均一に
加熱されているので、容器内の温度むらがなく、均一な
膜厚を形成できる。更に、容器内には容器内容積に比べ
少量の樹脂しか入っていないので、容器を傾けたり回転
させたりして姿勢を変えることにより、樹脂は良好に流
動して容器内全面に接触し、均一に付着するばかりでな
く、内表面を擦る様に滑り表面凹凸のほとんどない平滑
な皮膜を作ることができる。このように本発明の方法は
、簡単かつ容易に、細目容器内面に均一厚みの平滑な粉
体樹脂うイニングを施すことができる利点を有している
。According to the above method, the amount of powdered resin supplied into the fine container is only the amount required to form a lining film of a predetermined thickness, specifically about 10 to 20% of the container internal volume, so it can be quickly processed. Since it can be supplied and there is no need to take out excess resin, there is no possibility of powder clogging. Since the container is heated uniformly in advance, there is no temperature unevenness within the container, and a uniform film thickness can be formed. Furthermore, since there is only a small amount of resin in the container compared to the volume inside the container, by tilting or rotating the container to change its position, the resin will flow well and come into contact with the entire surface of the container, ensuring uniform distribution. It not only adheres to the surface, but also glides on the inner surface, creating a smooth film with almost no surface irregularities. As described above, the method of the present invention has the advantage that a smooth powder resin lining of uniform thickness can be simply and easily applied to the inner surface of a fine container.
以下、添付図面の実施例を用いて本発明を更に詳細に説
明する。Hereinafter, the present invention will be explained in more detail using embodiments of the accompanying drawings.
第１図には内面にライニングを施されるべきボンベ１が
示されている。ボンベ１は口金（出入口部）２、底部３
及び直管胴部４とから成っており、底部３には凸部５が
設けられている。直管胴部４は均一な厚みを有している
が、口金２及び底部３は直管胴部４より厚い。第１図の
ボンベ１は粉体ライニングに必要な下地処理として化成
処理がされているが、他の方法による下地処理を行って
もよい。次いで適当な加熱炉（図示せず）により均一に
加熱された後、耐熱レンガ６上に置がれたものである。FIG. 1 shows a cylinder 1 which is to be lined on the inside. Cylinder 1 has a cap (entrance/exit part) 2 and a bottom part 3
and a straight pipe body part 4, and a convex part 5 is provided on the bottom part 3. Although the straight tube body 4 has a uniform thickness, the base 2 and the bottom 3 are thicker than the straight tube body 4. Although the cylinder 1 shown in FIG. 1 has been subjected to a chemical conversion treatment as a base treatment necessary for powder lining, the base treatment may be performed by other methods. Then, after being uniformly heated in a suitable heating furnace (not shown), it was placed on heat-resistant bricks 6.
次に第１図のボンベ１に所定量の粉体樹脂７を供給する
。ここでボンベ１内に供給する粉体樹脂の量はボンベ内
面に所定厚み、例えばＩＢのライニングを施すに必要か
つ十分な量であり、過剰な樹脂は供給しない。ボンベ内
への粉体樹脂の供給は極力短時間で行うことが望ましく
、そのため粉体圧送方式を利用することが好適である。Next, a predetermined amount of powdered resin 7 is supplied to the cylinder 1 shown in FIG. Here, the amount of powdered resin supplied into the cylinder 1 is a necessary and sufficient amount to line the inner surface of the cylinder with a predetermined thickness, for example, IB, and an excessive amount of resin is not supplied. It is desirable to supply the powdered resin into the cylinder in as short a time as possible, and therefore it is preferable to use a powder feeding method.
しかしながら、単に従来公知の粉体圧送方式を用いたの
では、良好な供給は望めない。即ち、送り供給配管途中
に必然的にある曲がり部、高低の段差、管内径の差等に
より、粉体の送り、停止の作業を繰り返すと送り供給配
管途中に粉詰まりが発生する。However, simply using the conventionally known powder pumping method cannot provide a good supply. That is, due to bends, height differences, differences in tube inner diameter, etc. that are inevitably present in the feed and supply pipe, powder clogging occurs in the feed and supply pipe when the powder is repeatedly fed and stopped.
粉詰まりした送り供給配管は分解補修や取り換えを行わ
ないかぎり再使用は不可能で、粉体供給途中で粉詰まり
が発生すると供給量は確認できずライニング不良品とな
る。これらの欠点を補うため、本実施例では第５図に示
す粉体供給装置８を用いる。Powder-clogged feed supply piping cannot be reused unless it is disassembled, repaired, or replaced, and if powder clogging occurs during powder supply, the supply amount cannot be confirmed and the lining will be defective. In order to compensate for these drawbacks, a powder supply device 8 shown in FIG. 5 is used in this embodiment.
粉体供給装置８は圧送式のもので、圧空管９、フィルタ
及び圧力調整弁１０、圧送タンク１１、計量ホッパー１
２、バルブ１３、送りホース１４及び供給管１５から成
る。供給管１５は第１図に示すように、ボンベの出入口
部２から内部に挿入され、粉体樹脂を高温加熱された出
入口部に接触させる事なく、ボンベ内に供給するための
ものであり、高温加熱された出入口部に接触しても破損
（７）
のない耐熱性材料で作られている。更に供給管１５の外
径は、所定量の粉体樹脂をボンベ内に短時間で圧送する
時に、ボンベ内の空気が供給管と出入口部との間を通っ
て排出されうる程度に小さく定められている。圧送タン
ク１１は１個のボンベ１に送り込まれる所定量の粉体樹
脂を収容しうる大きさのものである。粉体供給装置８に
よる粉体供給は次の要領で行う。即ち、皮膜形成に必要
な粉体樹脂量を、そのつど計量ホッパー１２で計量後、
圧送タンク１１へ供給し、その全量を圧空管９からの圧
縮空気を用いて、供給管１５にて出入口部２からボンベ
内へ一度に送り込む。かくして、配管途中に粉詰まりを
生じることなく、所定量の粉体樹脂を確実に、かつ短時
間でボンベ１内に供給できる。第５図の装置によるボン
ベへの粉体樹脂供給の具体例を第１表に示す。The powder supply device 8 is of a pressure feeding type, and includes a compressed air pipe 9, a filter and pressure regulating valve 10, a pressure feeding tank 11, and a weighing hopper 1.
2, a valve 13, a feed hose 14 and a supply pipe 15. As shown in FIG. 1, the supply pipe 15 is inserted into the cylinder from the entrance/exit part 2, and is used to supply powdered resin into the cylinder without coming into contact with the entrance/exit part heated at high temperature. It is made of heat-resistant material that will not break (7) even if it comes into contact with a heated doorway. Further, the outer diameter of the supply pipe 15 is set to be small enough to allow air in the cylinder to be discharged through between the supply pipe and the inlet/outlet section when a predetermined amount of powdered resin is pumped into the cylinder in a short time. ing. The pressure tank 11 has a size that can accommodate a predetermined amount of powdered resin to be fed into one cylinder 1. Powder supply by the powder supply device 8 is performed in the following manner. That is, after weighing the amount of powder resin necessary for film formation each time using the weighing hopper 12,
It is supplied to the pressure tank 11, and the entire amount is sent into the cylinder at once through the supply pipe 15 through the inlet/outlet section 2 using compressed air from the compressed air pipe 9. In this way, a predetermined amount of powdered resin can be reliably supplied into the cylinder 1 in a short time without causing powder clogging in the middle of the piping. Table 1 shows a specific example of powder resin supply to a cylinder using the apparatus shown in FIG.
（８）
第１表（粉体比重１．７．膜厚Ｉ ＩＩの場合）なお、
ボンベ１への粉体樹脂供給は第５図の装置に限定されず
、他の装置を用いてもよい。(8) Table 1 (for powder specific gravity 1.7, film thickness I II),
The powder resin supply to the cylinder 1 is not limited to the apparatus shown in FIG. 5, and other apparatuses may be used.
第１図に示すように、所定量の粉体樹脂７をボンベ１内
に供給した後は、そのま−第２図に示すように所定時間
静置し、底部３内面に粉体樹脂を溶融付着させ、所定厚
の皮膜形成を行う。このさい、粉体樹脂はまだ十分ある
ので、底部３の凸部５にも十分粉体樹脂が接触しており
、凸部５を含めた底部３全面に均一な皮膜が形成される
。ボンベ内に供給される粉体樹脂は定量であるので、も
し他部から先に被覆すると底部形成時には粉体量が減少
しており凸部５への接触粉体が無かったり、少なかった
りして凸部５の形成膜厚み不足となる。As shown in FIG. 1, after a predetermined amount of powder resin 7 is supplied into the cylinder 1, the cylinder is left to stand for a predetermined time as shown in FIG. to form a film of a predetermined thickness. At this time, since there is still enough powder resin, the powder resin is also in sufficient contact with the convex portions 5 of the bottom portion 3, and a uniform film is formed over the entire surface of the bottom portion 3 including the convex portions 5. Since the powder resin supplied into the cylinder is a fixed amount, if other parts are coated first, the amount of powder will decrease when the bottom part is formed, and there will be no or less powder in contact with the convex part 5. The thickness of the film forming the convex portions 5 is insufficient.
底部３への皮膜形成を行っている間に、供給管１５を出
入口部２から引き抜き、口金の外ねじを利用してキャッ
プ１６を装着する。これは後述するように、ボンベを逆
さにする時に出入口部から粉体のこぼれるのを防止する
ためのものである。While the film is being formed on the bottom part 3, the supply pipe 15 is pulled out from the entrance/exit part 2, and the cap 16 is attached using the external thread of the base. This is to prevent powder from spilling out from the inlet/outlet when the cylinder is turned upside down, as will be described later.
このキャップは第６図に示すように内面に耐熱シート１
７を取付け、シール性の向上とボンベからの熱伝導によ
るキャップ昇温の防止を図っている。This cap has a heat-resistant sheet on the inside as shown in Figure 6.
7 is attached to improve sealing performance and prevent cap temperature from rising due to heat conduction from the cylinder.
底部３への皮膜形成が終了すると、第３図に示すように
ボンベ１を倒立させ、所定時間静置して、出入口部２内
面への所定厚の皮膜形成を行う。When the film formation on the bottom part 3 is completed, as shown in FIG. 3, the cylinder 1 is turned upside down and left standing for a predetermined period of time to form a film of a predetermined thickness on the inner surface of the entrance/exit part 2.
最後に、第４図に示すようにボンベ１をローラ回転台１
８上に水平に載せ、回転させながら内部の粉体樹脂全部
を用いて直管胴部４内面への皮膜形成を行う。また、必
要があれば、回転中のボンベ１の直管胴部４を外側から
適当な手段で後加熱する。かくして、ボンベ内面に均一
な樹脂皮膜が形成される。使用樹脂によっては次工程に
送られ適当な後処理をする。Finally, as shown in Figure 4, move the cylinder 1 onto the roller rotating table.
8 and while rotating, a film is formed on the inner surface of the straight pipe body 4 using all of the powder resin inside. Moreover, if necessary, the straight pipe body 4 of the rotating cylinder 1 is post-heated from the outside by an appropriate means. In this way, a uniform resin film is formed on the inner surface of the cylinder. Depending on the resin used, it is sent to the next process and subjected to appropriate post-treatment.
ここで、直管胴部を最後に、かつローラ回転台上にて施
工するのは、全体を均一加熱されたボンベを大気中で施
工すると、時間経過が温度低下となり、高融点粉体は溶
融されにくくなり必要膜厚み形成が不可能となり再加熱
や保温等の温度確保が必要となるが、直管胴部はボンベ
製作加工において他部のような絞り加工が行われてなく
変形や素材肉厚増加もなく通常の鋼管と考えて良く、こ
のため、何らかの加熱源を用いて容易にかつ短時間に均
一に加熱しうるからである。更に、直管胴部を最後にロ
ーラ回転台上にて施工することは、皮膜形成時間や次施
工工程を考慮しなくてもよく、加熱条件のみ注意すれば
よく、また直管胴部の内表面積は他部に比較し大なので
必要粉体も大量であり、その大量粉体の運動性も良好な
形状と方向なので均一皮膜形成が可能となる利点を有し
ている。The reason why the straight pipe body is installed last and on the roller rotating table is because if the entire cylinder is uniformly heated and the cylinder is installed in the atmosphere, the temperature will drop over time and the high melting point powder will melt. This makes it difficult to form the necessary film thickness, making it necessary to maintain the temperature by reheating or keeping warm. However, the straight pipe body is not drawn like other parts during the cylinder manufacturing process, so it may not be deformed or the thickness of the material may deteriorate. This is because there is no increase in thickness and it can be considered as a normal steel pipe, and therefore it can be heated easily and uniformly in a short time using some kind of heating source. Furthermore, by finally applying the straight pipe body on a roller rotating table, there is no need to consider the film formation time or the next application process, and only the heating conditions need to be taken into account. Since the surface area is large compared to other parts, a large amount of powder is required, and the movement of the large amount of powder is also good in shape and direction, so it has the advantage of being able to form a uniform film.
なお、上記実施例は粉体樹脂７を供給されたボ（１１）
ンベを第２図、第３図、第４図の順序でその姿勢を変え
、ボンベ内面全域に粉体樹脂を接触させて皮膜形成され
るものであるが、本発明はこの順序に限定されるもので
なく、適宜変更可能である。In the above embodiment, the cylinder (11) supplied with powdered resin 7 was changed in its posture in the order of FIGS. 2, 3, and 4, and the powdered resin was brought into contact with the entire inner surface of the cylinder. Although a film is formed, the present invention is not limited to this order and can be changed as appropriate.
特に、底部３及び出入口部２への皮膜形成時に、ボンベ
を静置させておく必要はなく、ボンベをその軸線のまわ
りに回転させていてもよい。もし、ボンベを回転させな
がら、底部及び出入口部の皮膜形成を行う場合には、ボ
ンベは第２図、第３図に示すように垂直に保つ必要はな
く、多少傾斜させてもよい。また、このさい出入口部２
がら粉体樹脂がこぼれない程度に傾斜させた状態で、出
入口部２内面への粉体樹脂の接触が可能であれば、キャ
ップ１６の装着を省略してもよい。更に、ボンベ内面の
各部分での皮膜形成は、上記実施例の、如く一度に全厚
みを行う場合に限定されず、ボンベの姿勢変更を短時間
ずつ繰り返して行い少しずつ皮膜形成を行ってもよい。In particular, when forming the film on the bottom part 3 and the entrance/exit part 2, it is not necessary to keep the cylinder stationary, and the cylinder may be rotated around its axis. If a film is to be formed on the bottom and the entrance/exit portion while rotating the cylinder, the cylinder need not be kept vertically as shown in FIGS. 2 and 3, but may be tilted somewhat. Also, at this time, the entrance/exit part 2
The cap 16 may be omitted if the powder resin can come into contact with the inner surface of the entrance/exit portion 2 while being tilted to such an extent that the powder resin does not spill out. Furthermore, the formation of a film on each part of the inner surface of the cylinder is not limited to the case where the entire thickness is formed at once as in the above embodiment, but it is also possible to form the film little by little by repeatedly changing the position of the cylinder for a short time. good.
このようにすると、粉体量が少い場合、或は溶融しやす
い粉体の場合にも均一な皮膜厚さを得ることができ好ま
しい。This is preferable because it is possible to obtain a uniform film thickness even when the amount of powder is small or when the powder is easily melted.
（１２）
第７図はボンベをその軸線のまわりに回転させながら、
ボンベの姿勢を変え、ボンベ内面に皮膜を形成するため
に用いる二軸回転運動ライニング装置２０を示している
。ライニング装置２ｏは架台２１と、架台２１に回転可
能に保持された水平軸２２と一緒に回転するベッド２３
と、ベッド２３上に保持された回転ローラ２４、駆動軸
２５及び駆動軸駆動機構２６を有し、駆動軸２５はそノ
先端ニホンベ１の底部を受け入れるボンベ受２７及びセ
ットボルト２Ｂを有している。駆動軸２５は水平軸２２
に対して直角方向に延びており、従って、ボンベ１は互
に直交する二軸のまわりに回転可能である。(12) Figure 7 shows that while rotating the cylinder around its axis,
A two-axis rotary movement lining device 20 is shown which is used to change the orientation of the cylinder and form a coating on the inner surface of the cylinder. The lining device 2o includes a pedestal 21 and a bed 23 that rotates together with a horizontal shaft 22 rotatably held by the pedestal 21.
It has a rotating roller 24 held on a bed 23, a drive shaft 25, and a drive shaft drive mechanism 26, and the drive shaft 25 has a cylinder holder 27 and a set bolt 2B for receiving the bottom of the Japanese beer 1 at its tip. There is. The drive shaft 25 is the horizontal shaft 22
Therefore, the cylinder 1 is rotatable around two mutually orthogonal axes.
次に第７図の装置を用いたライニング方法を説明する◇
ボンベ内表面の下地処理をし、次いでボンベ全体を均一
に加熱した後、そのボンベ１をライニング装置２０にセ
ットする。そのさい、ベッド２３は図示の位置から時計
方向に７０〜９０度回転させており、ボンベ１は底部会
下にして、はぼ垂直状態に立っている。この状態で、前
述の実施例と同様に所定量の粉体樹脂を供給し、キャラ
色
プする。次いで、駆動軸２５を回転させてボンベ１をそ
の軸線のまわりにゆっくりと回転させながら、ベッド２
３を左右に所定の時間間隔で間欠的に揺動させ、ボンベ
内面全域に樹脂皮膜の形成を行う。ボンベ１の回転及び
揺動の具体例は次の通りである。Next, we will explain the lining method using the device shown in Figure 7◇
After the inner surface of the cylinder is prepared and then the entire cylinder is heated uniformly, the cylinder 1 is set in the lining device 20. At this time, the bed 23 is rotated 70 to 90 degrees clockwise from the illustrated position, and the cylinder 1 is placed in a nearly vertical position with the bottom section lowered. In this state, a predetermined amount of powdered resin is supplied and the character is colored in the same manner as in the previous embodiment. Next, while rotating the drive shaft 25 to slowly rotate the cylinder 1 around its axis, the bed 2 is rotated.
3 intermittently to the left and right at predetermined time intervals to form a resin film over the entire inner surface of the cylinder. A specific example of rotation and rocking of the cylinder 1 is as follows.
具体例：ボンベ軸線まわり回転・・・２５〜３５＠／％
１）底部下向（７５°）・・・２５秒（樹脂供給時間を
含む）
２）水平 ・・・１５秒
３）出入口部下向（４５°）・・・２０秒４）底部下向
（７５°） ・・・２０秒５）水平 ・・・２０秒
６）出入口部下向（４５°）・・・２０秒７）底部下向
（７５°） ・・・２０秒８）出入口部下向（４５°）
・・・２０秒９）水平 ・・・３０秒
合計 ３分１０秒
上記実施例では、ボンベ１がその軸線のまわりに回転し
ているので、ボンベ内の粉体樹脂が内表面を擦る様に滑
り、そのため表面凹凸のほとんどない平滑な皮膜ができ
る利点がある。なお、上記具体例でわかるように、ボン
ベ１は第７図図示の位置から、時計方向に７５°、反時
計方向に４５゜揺動している。この揺動範囲はボンベの
種類によって多少変るが、通常、時計方向に（底部が下
になる方向に）７０〜９０°、反時計方向に（出入口部
が下になる方向に）３０〜５０°揺動すれば十分である
。このことは、ボンベ１を支持するベッド２３が３６０
度回転する必要がないことを意味しており、従って、ベ
ッド２３の揺動機構を簡略化できる。Specific example: Rotation around cylinder axis...25~35@/%
1) Bottom downward (75°)...25 seconds (including resin supply time) 2) Horizontal...15 seconds 3) Downward entrance (45°)...20 seconds 4) Bottom downward (75 °) 20 seconds 5) Horizontal 20 seconds 6) Downward entrance (45°) 20 seconds 7) Downward bottom (75°) 20 seconds 8) Downward entrance (45 °)
...20 seconds 9) Horizontal ...30 seconds Total 3 minutes 10 seconds In the above example, the cylinder 1 is rotating around its axis, so that the powder resin inside the cylinder rubs against the inner surface. It has the advantage of producing a smooth film with almost no surface irregularities. As can be seen from the above example, the cylinder 1 is swung 75 degrees clockwise and 45 degrees counterclockwise from the position shown in FIG. This swing range varies slightly depending on the type of cylinder, but usually 70 to 90 degrees clockwise (towards the bottom) and 30 to 50 degrees counterclockwise (toward the entrance/exit part to the bottom). Swinging is enough. This means that the bed 23 supporting the cylinder 1 is
This means that there is no need to rotate the bed 23, and therefore the rocking mechanism of the bed 23 can be simplified.
以上の説明は本発明をボンベに適用した場合のものであ
るが、本発明はボンベ以外にも圧力タンク、ドラム罐、
石油鑵等の細口容器に適用しうることは言うまでもない
。The above explanation is for a case where the present invention is applied to a cylinder, but the present invention can also be applied to pressure tanks, drum cans,
Needless to say, it can be applied to narrow-mouthed containers for petroleum iron, etc.
以上に説明した様に、本発明によれば、均一な粉体樹脂
ライニング皮膜を有するボンベの如き細目容器及びその
製造方法が提供される。As described above, the present invention provides a fine container such as a cylinder having a uniform powder resin lining film and a method for manufacturing the same.
（１５）(15)
第１図〜第４図は本発明方法の一実施例を示すもので、
ボンベへのライニング手順を示す側断面図、
第５図は上記実施例に用いる粉体供給装置の概略図、
第６図は上記実施例に用いるキャップの断面図、第７図
は本発明方法の別の実施例に用いる二軸回転運動ライニ
ング装置の概略側面図である。
１・・・ボンベ ２・・・出入口部（口金）３・・・底
部 ４・・・直管胴部
５・・・凸部 ６・・・耐熱レンガ
７・・・粉体樹脂 ８・・・粉体供給装置１６・・・キ
ャップ １８・・・ｐ−ラ回転台２０・・・２軸回転運
動ライニング装置代理人 弁理士 乗 松 恭 三
（１６）1 to 4 show an embodiment of the method of the present invention,
FIG. 5 is a schematic diagram of the powder supply device used in the above embodiment. FIG. 6 is a sectional view of the cap used in the above embodiment. FIG. 7 is a diagram showing the method of the present invention. FIG. 3 is a schematic side view of a two-axis rotary motion lining device for use in another embodiment. 1... Cylinder 2... Entrance/exit part (cap) 3... Bottom part 4... Straight pipe body 5... Convex part 6... Heat resistant brick 7... Powder resin 8... Powder supply device 16...cap 18...p-ra rotary table 20...two-axis rotation motion lining device agent Patent attorney Kyozo Norimatsu (16)
Claims (2)
脂ライニング皮膜を有することを特徴とする細目容器。(1) A fine container characterized by having a resin lining film formed by adhering and melting powdered resin over the entire inner surface.
備し、該容器の全体を均一に加熱し、容器内面に所定厚
みのライニングを施すに必要な粉体樹脂を前記細口容器
内に供給し、容器内部の粉体が容器内面の全域に接触す
るよう逐次容器の姿勢を変えることを特徴とする内面樹
脂ライニング細目容器の製造方法。(2) Prepare a narrow container whose inner surface is to be lined, uniformly heat the entire container, and supply powder resin necessary to line the inner surface of the container with a predetermined thickness into the narrow container. A method for producing a fine container with an inner resin lining, characterized in that the attitude of the container is successively changed so that the powder inside the container comes into contact with the entire inner surface of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14074383A JPS6031857A (en) | 1983-08-01 | 1983-08-01 | Narrow mouth container having resing lining formed to its inner surface and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14074383A JPS6031857A (en) | 1983-08-01 | 1983-08-01 | Narrow mouth container having resing lining formed to its inner surface and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031857A true JPS6031857A (en) | 1985-02-18 |
| JPH0353030B2 JPH0353030B2 (en) | 1991-08-13 |
Family
ID=15275682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14074383A Granted JPS6031857A (en) | 1983-08-01 | 1983-08-01 | Narrow mouth container having resing lining formed to its inner surface and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031857A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02175769A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of colorant for powder coating |
| JPH02175768A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of plastics colorant |
| JPH02175770A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of pigment-resin composition |
| JPH0329785A (en) * | 1989-03-28 | 1991-02-07 | State Ind Inc | Tank structure and manufacture thereof |
| JPH03217279A (en) * | 1990-01-22 | 1991-09-25 | Mitsubishi Materials Corp | Method for coating inner surface of beverage can |
| US5872164A (en) * | 1994-02-25 | 1999-02-16 | Toyo Ink Manufacturing Co., Ltd. | Process for preparing resin composition for coloring and a resin composition for coloring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5076153A (en) * | 1973-09-13 | 1975-06-21 | ||
| JPS55119478A (en) * | 1979-03-07 | 1980-09-13 | Nippon Kokan Kk <Nkk> | Inside surface coating method of metal pipe |
| JPS57144068A (en) * | 1981-03-02 | 1982-09-06 | Nippon Kokan Kk <Nkk> | Powder coating method for inner face of metallic tube |
-
1983
- 1983-08-01 JP JP14074383A patent/JPS6031857A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5076153A (en) * | 1973-09-13 | 1975-06-21 | ||
| JPS55119478A (en) * | 1979-03-07 | 1980-09-13 | Nippon Kokan Kk <Nkk> | Inside surface coating method of metal pipe |
| JPS57144068A (en) * | 1981-03-02 | 1982-09-06 | Nippon Kokan Kk <Nkk> | Powder coating method for inner face of metallic tube |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02175769A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of colorant for powder coating |
| JPH02175768A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of plastics colorant |
| JPH02175770A (en) * | 1988-12-28 | 1990-07-09 | Dainichiseika Color & Chem Mfg Co Ltd | Production of pigment-resin composition |
| JPH0329785A (en) * | 1989-03-28 | 1991-02-07 | State Ind Inc | Tank structure and manufacture thereof |
| JPH03217279A (en) * | 1990-01-22 | 1991-09-25 | Mitsubishi Materials Corp | Method for coating inner surface of beverage can |
| US5872164A (en) * | 1994-02-25 | 1999-02-16 | Toyo Ink Manufacturing Co., Ltd. | Process for preparing resin composition for coloring and a resin composition for coloring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0353030B2 (en) | 1991-08-13 |
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