JPH01280513A - Method of forming storage vessel such as drum - Google Patents

Method of forming storage vessel such as drum

Info

Publication number
JPH01280513A
JPH01280513A JP63149220A JP14922088A JPH01280513A JP H01280513 A JPH01280513 A JP H01280513A JP 63149220 A JP63149220 A JP 63149220A JP 14922088 A JP14922088 A JP 14922088A JP H01280513 A JPH01280513 A JP H01280513A
Authority
JP
Japan
Prior art keywords
casing
inner casing
resin
metal
elastomeric
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
Application number
JP63149220A
Other languages
Japanese (ja)
Inventor
Pierre Henin
ピーエル　エーナン
Nestor Maquet
ネストール　マーク
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9352318&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH01280513(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Solvay SA filed Critical Solvay SA
Publication of JPH01280513A publication Critical patent/JPH01280513A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • B65D90/041—Rigid liners fixed to the container
    • B65D90/044—Rigid liners fixed to the container fixed or supported over substantially the whole interface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To prevent movement and damage of an internal casing by molding the internal casing and contracting the same before injecting an elastomeric resin into the gap between external and internal casings. CONSTITUTION: An external casing is heated by rotary molding oeration to form a continuous internal casing 10 made of polyvinylidene fluoride having uniform thickness within a metal casing. After cooling, the internal casing 10 made of polyvinylidene fluoride receives shrinkage large than that of the external casing to form a continuous space 11 between these casings. A slight vacuum is generated through a connection part 4 without closing the connection part 4 and openings 8, 9 and an elastomeric polyurethane resin is injected into the space 11 arranged between the internal and external casings 10, 1 through the opening 8. The obtained drum is suitable for packing a product having activity and desired to hold purity and has excellent collision strength.

Description

【発明の詳細な説明】 本発明は、金属外部ケーシングおよびサーモプラスチッ
クから作られ回転成形（モールディング）によって形成
された付着している内部ケーシングから成るドラムのよ
うな貯蔵容器を形成する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of forming a storage container, such as a drum, consisting of a metal outer casing and an attached inner casing made of thermoplastic and formed by rotational molding.

化学製品のような製品を運搬するドラムのような貯蔵容
器を用いることが現在行われており、これらの容器は包
装（貯蔵）される製品の性質が金属を許容するならば、
金属で作られている。一方、包装される製品が腐食性で
あるかまたは包装される製品の純度が維持されなければ
ならないときには、金属ドラムの使用は不適当であるこ
とがしばしば見出されている。この状態を解決するため
に、内部壁が不活性であるかまたは包装すべき製品の純
度を維持するサーモプラスチックで被覆される金属貯蔵
容器を与えることが可能である。It is now common practice to use storage containers such as drums to transport products such as chemicals, and these containers may contain metals if the nature of the product being packaged (stored) allows for metals.
made of metal. On the other hand, the use of metal drums is often found to be inappropriate when the product to be packaged is corrosive or the purity of the packaged product must be maintained. To solve this situation, it is possible to provide metal storage containers whose internal walls are inert or coated with thermoplastic, which maintains the purity of the product to be packaged.

後者の場合、特に有利な解決案は、金属貯蔵容器自体を
モールド（金型）として、回転成形技術によって付着さ
れる不活性サーモプラスチックの層で貯蔵容器表面を被
覆することである。In the latter case, a particularly advantageous solution is to cover the storage container surface with a layer of inert thermoplastic applied by rotomolding techniques, using the metal storage container itself as a mold.

しかしながら、操作がこの方法で実施されるとき、回転
成形操作後に、内部サーモプラスチックケーシングがか
なりの収縮を受け、収縮が内部ケーシングを金属外部ケ
ーシングから離してしまうことが一般に見出されている
。その結果、内部ケーシングが外部ケージング内で自由
に移動する貯蔵容器となり、このことは後の取扱いの間
この内部ケーシングに損傷を与える危険を生じさせる。However, it has generally been found that when the operation is carried out in this manner, the inner thermoplastic casing undergoes significant shrinkage after the rotational molding operation, the shrinkage separating the inner casing from the metal outer casing. As a result, the inner casing becomes a freely moving storage container within the outer casing, which creates a risk of damage to this inner casing during subsequent handling.

本発明の課題は、前述の欠点をもはや有せず、金属外部
ケーシングおよびサーモプラスチックを用いて回転成形
することによって形成した内部ケーシングから成るドラ
ムのような貯蔵容器を形成する方法にある。さらに、こ
の方法は、著しい衝撃強度を有しかつ２ＭＰａまでの内
部圧力に耐えることができる貯蔵容器の構造を可能にす
る。The object of the invention is to create a storage container, such as a drum, which no longer has the above-mentioned disadvantages and consists of a metal outer casing and an inner casing produced by rotomolding from thermoplastic. Furthermore, this method allows the construction of storage containers that have significant impact strength and can withstand internal pressures of up to 2 MPa.

本発明は、金属外部ケーシングおよびサーモプラスチッ
クを用いて回転成形することによって金属ケーシング内
に形成した付着する内部ケーシングから成るドラムのよ
うな貯蔵容器を形成する方法において、成形後内部ケー
シングは内部ケーシングを金属ケーシングから離す収縮
を受け、内部ケーシングの成形および収縮後、エラスト
マー性樹脂が外部ケーシングおよび内部ケーシングの間
に注入されてこれらのケーシング間に形成された空間を
充填し、すべての対向する表面にわたって結合すること
を特徴とする方法に関する。The present invention provides a method of forming a storage container, such as a drum, consisting of a metal outer casing and an adherent inner casing formed within the metal casing by rotomolding with a thermoplastic, in which the inner casing after molding displaces the inner casing. After undergoing shrinkage away from the metal casing and shaping and shrinking the inner casing, an elastomeric resin is injected between the outer casing and the inner casing to fill the space formed between these casings and spread over all opposing surfaces. It relates to a method characterized in that it combines.

本発明の貯蔵容器は、容器、ドラム、缶等の任意の形状
でよく、外部ケーシングは任意の金属で作られてもよい
が、軟鋼が一般に好ましい、この外部ケーシングは、例
えば深絞り方法によって単一の部品として形成されるか
、または溶接またはかしめによって互いに結合される数
個の部品で作られてもよい、貯蔵容器がドラムであると
き、外部ケーシングには金属スカートで保護される充填
および排出連結部が設けられてもよい。The storage container of the invention may be of any shape, such as a container, drum, can, etc., and the outer casing may be made of any metal, although mild steel is generally preferred. When the storage container is a drum, which may be formed as one piece or made of several parts joined together by welding or staking, the outer casing has a filling and draining area protected by a metal skirt. A connecting portion may be provided.

それにもかかわらず、本発明の方法を実施するとき、金
属ケーシングの上部または底部の１つに５ないし１０龍
の直径のオリフィスおよび金属ケーシングの他方にほぼ
等しい直径の開口を設けることが好ましい。Nevertheless, when carrying out the method of the invention, it is preferred to provide an orifice of 5 to 10 diameters in one of the top or bottom parts of the metal casing and an opening of approximately equal diameter in the other part of the metal casing.

回転成形によって内部ケーシングを形成するのに用いら
れるサーモプラスチックは任意の種類でよく、またプラ
スチゾルまたは粉末の形状でもよい、このサーモプラス
チックはポリ塩化ビニルまたはポリエチレンのようなビ
ニル樹脂、低または高密度のポリエチレン、ポリプロピ
レンのようなオレフィン系樹脂、例えばポリ弗化ビニリ
デン、ビニリデン弗素コポリマーのような弗素系樹脂で
あってもよく、特に最後に述べた樹脂は、製品の純度を
保持するように製品を包装する貯蔵容器を形成するため
に、化学的な高不活性を考慮すると好ましいものである
。The thermoplastic used to form the inner casing by rotomolding may be of any type and may be in plastisol or powder form; this thermoplastic may be made of vinyl resins such as polyvinyl chloride or polyethylene, low or high density Olefinic resins such as polyethylene, polypropylene, fluorinated resins such as polyvinylidene fluoride, vinylidene fluorine copolymers, and especially the last mentioned resins may be used to package the product in a way that preserves the purity of the product. In view of its high chemical inertness, it is preferred for forming a storage container.

本発明にしたがって貯蔵容器を形成するために、金属外
部ケーシングが内部ケーシングの回転成形のためのモー
ドル（金型）として用いられ、この内部ケーシングの材
料が金属外部ケーシング内の開口の１つを通して一般に
、ペースト状、微粉砕状、または粒子状で導入される０
回転成形の操作を行う前に、例えばプラグを用いて金属
外部ケーシングに設けられた開口のすべてが一時的に閉
じられることが好ましい。To form a storage container in accordance with the present invention, a metal outer casing is used as a mold for rotational molding of an inner casing, the material of which is generally passed through one of the openings in the metal outer casing. , introduced in paste, finely ground, or particulate form.
Preferably, all openings provided in the metal outer casing are temporarily closed, for example using plugs, before carrying out the rotational molding operation.

回転成形の技術は良く知られており、詳細に説明する必
要はないと思われる。このことに関する情報に対しては
、カール　ハンゼル　ビルラーグ出版社（ミューヘン）
から１９６８年に出版された文献「プラスチックの回転
溶融および遠心成形」を特に参照されたい、なお、その
一部は参考のために本明細書に記載されている。The technology of rotational molding is well known and does not seem necessary to be described in detail. For information on this please contact Karl Hansel Billlag Verlag, Munich.
Reference is particularly made to the document "Rotary Melting and Centrifugal Molding of Plastics", published in 1968, portions of which are incorporated herein by reference.

本発明の方法においては、内部ケーシングの成形および
収縮後、エラストマー性樹脂がケーシングの間に形成さ
れた空間を充填して対向する表面にわたって互いに結合
するために、外部金属ケーシングに設けられた開口を通
して、外部ケーシングおよび内部ケーシングの間に注入
される。In the method of the invention, after shaping and shrinking the inner casing, the elastomeric resin is passed through the openings provided in the outer metal casing in order to fill the space formed between the casings and bond to each other over the opposing surfaces. , injected between the outer casing and the inner casing.

注入は注入プレスまたはポンプによって実行されてもよ
く、注入圧力は０．１および２ＭＰａの間である。Injection may be carried out by an injection press or pump, the injection pressure being between 0.1 and 2 MPa.

エラストマー性樹脂の注入中ケーシングを７５．０００
ないし１５０，０ＯＯＰａ絶対値ノ部分的な真空下に保
つことが有利であることが見出されている。この真空効
果によって内部ケーシングの収縮を発生し、この内部ケ
ーシングと金属外部ケーシングとの間に含まれる空間を
充填するのが容易となる。75,000 casing during injection of elastomeric resin
It has been found to be advantageous to maintain a partial vacuum of between 150.0 and 150,0 OOPa absolute. This vacuum effect causes a contraction of the inner casing, facilitating filling of the space contained between this inner casing and the metal outer casing.

注入されるエラストマー性樹脂は、例えばポリウレタン
樹脂、エポキシ樹脂、シリコーンラバー、”アルキド”
樹脂、未飽和ポリエステル、フェノールおよびフォルム
アルデヒドに基づく樹脂、シリコーン樹脂、ナイロン６
のようなポリアミド、およびスチレンおよび（または）
メチルメタクリレートから形成した樹脂のような任意の
材料である。−最には、気泡構造を生じさせず、貯蔵容
器の外部ケーシングおよび内部ケーシングを形成する材
料に充分付着する樹脂を用いることが好ましい。The elastomeric resins to be injected include, for example, polyurethane resins, epoxy resins, silicone rubbers, and "alkyds".
resins, unsaturated polyesters, resins based on phenol and formaldehyde, silicone resins, nylon 6
polyamides such as, and styrene and/or
Any material such as a resin formed from methyl methacrylate. - It is ultimately preferable to use a resin that does not create a cell structure and adheres well to the material forming the outer and inner casing of the storage container.

ケーシング間の空間をエラストマー性樹脂で充填した後
、内部ケーシングに形成した真空を開放し、エラストマ
ー性樹脂が好ましくは２４ないし６０時間の間に硬化す
る間２ｏないし６０’Ｃの間の温度の水のような液体で
内部ケーシングを充填することが有効である。After filling the space between the casings with the elastomeric resin, the vacuum formed in the inner casing is released and water at a temperature between 2° and 60'C is cured while the elastomeric resin is cured, preferably over a period of 24 to 60 hours. It is advantageous to fill the inner casing with a liquid such as

この時間の後、貯蔵容器を空にして金属外部ケーシング
内のオリフィスを開放し、使用できる状態の貯蔵容器を
得る。After this time, the storage container is emptied and the orifice in the metal outer casing is opened to obtain a storage container ready for use.

本発明の方法は、実施例によって例示されているが、純
度が保持されることが望まれる製品の包装に特に適した
２００リツトルの容量の製造に関するものでる。The method of the invention is illustrated by way of example, which relates to the production of a 200 liter capacity, which is particularly suitable for the packaging of products whose purity is desired to be preserved.

次に図面を参照して、本発明を説明する。Next, the present invention will be explained with reference to the drawings.

図面に示すように、ドラムは、厚み４Ｉｌ！Ｉの曲がっ
た溶接した軟鋼製シェル（外皮）から成る側壁ｌと、厚
み４ｍ鳳の軟鋼からやはり作られた２つの上部２および
底部３と、を有する金属外部ケーシングから成り、上部
２は２つの充填および（または）排出用連結部４．５を
有している。外部ケーシングはまた、２つのスカート６
および７を有し、スカートは連結部４および５に対して
衝撃に対する保護を与え、外部ケーシングに対して垂直
方向の安定性を与える。As shown in the drawing, the drum has a thickness of 4Il! It consists of a metal outer casing with a side wall l consisting of a curved welded mild steel shell I, and two top parts 2 and a bottom part 3 also made of 4 m thick porcelain mild steel, the top part 2 having two It has a filling and/or draining connection 4.5. The outer casing also has two skirts 6
and 7, the skirt provides impact protection for the connections 4 and 5 and vertical stability for the outer casing.

さらに、上部２および底部３は直径６ｍ■の開口８．９
を有し、各開口をプラグ（図示せず）でポリ弗化ビニリ
デン樹脂が連結部４．５の１つを通して外部ケーシング
に導入され、連結部４．５および開口９が閉じられる。Furthermore, the upper part 2 and the bottom part 3 have an opening 8.9 with a diameter of 6 m.
and with a plug (not shown) in each opening, polyvinylidene fluoride resin is introduced into the outer casing through one of the connections 4.5, and the connection 4.5 and the opening 9 are closed.

次に、回転成形操作が外部ケーシングを２８５℃の温度
に加熱し、適当な回転運動を与えることによって始めら
れ、金属ケーシングの内部に４ｍｍの均一な厚みを持つ
ポリ弗化ビニリデンで作られた連続内部ケーシングを生
じさせる。Next, a rotomolding operation is started by heating the outer casing to a temperature of 285°C and applying suitable rotational movements, and a continuous molding made of polyvinylidene fluoride with a uniform thickness of 4 mm is placed inside the metal casing. Give rise to an internal casing.

全４８時間の間冷用した後、第１図に示すように、ポリ
弗化ビニルデンの内部ケーシング１０が外部ケーシング
よりも大きな収縮を受け、連続空間１１がこれらのケー
シングの間に形成される。After cooling for a total of 48 hours, the polyvinylidene fluoride inner casing 10 undergoes a greater contraction than the outer casing and a continuous space 11 is formed between these casings, as shown in FIG.

本発明の方法にしたがうと、連結部４および開口８およ
び９が遮蔽されずに、わずかな真空（９３，０００Ｐａ
絶対値）が連結部４を通して発生され、エラストマー性
のポリウレタン樹脂が開口８を通して内部ケーシング１
０と外部ケーシング１との間に配置した空間１１に注入
され、０．５９ＭＰａの圧力で実行された注入は、この
樹脂が開口９に表れるときまで継続される。使用される
エラストマー性ポリウレタン樹脂はカ　セボル　Ｗ９５
５５（カリーセ　ミニ　ＡＧによって製造され市販され
ているポリエーテルトリオール）および架橋剤が１．４
−ブタンジオールである４゜４°−ジフェニルメタン　
ジイソシアン酸エステルから得られる。According to the method of the invention, the connection 4 and the openings 8 and 9 are left unshielded and only a slight vacuum (93,000 Pa
absolute value) is generated through the connection 4 and the elastomeric polyurethane resin is applied to the inner casing 1 through the opening 8.
The injection, carried out at a pressure of 0.59 MPa, is continued until this resin appears in the opening 9. The elastomeric polyurethane resin used is Kasebol W95.
55 (a polyether triol manufactured and commercially available by Calise Mini AG) and the crosslinker is 1.4
-4°4°-diphenylmethane which is butanediol
Obtained from diisocyanate ester.

内部ケーシング１０は次に４０℃の水で充填され、４８
時間後内部ケーシングは空にされる。The inner casing 10 is then filled with water at 40°C and heated to 48°C.
After a period of time the inner casing is emptied.

このようにして得られたドラムは使用状態となり、活性
があり、純度を保持することを望む製造を包装するのに
特に適したものである。また、それは著しい衝突強度を
有するものである。ｉ＆後に、ドラムは１．６ＮＰａの
内部圧力に完全に耐えることができ圧力排出を可能にす
るものである。The drum thus obtained is ready for use, active, and particularly suitable for packaging products in which it is desired to preserve purity. It also has significant impact strength. After i&, the drum can fully withstand an internal pressure of 1.6 NPa and allow pressure evacuation.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は内部ケーシングの回転成形および冷却後のドラム
を示す断面図である。 ｌ・・・側壁、 ２・・・上部、 ３・・・底部、 ４．５・・・連結部、 ６．７・・・スカート、 ８．９・・・開口、 １０・・・内部ケーシング。The drawing is a cross-sectional view of the drum after rotomolding and cooling of the inner casing. l...Side wall, 2...Top, 3...Bottom, 4.5...Connecting portion, 6.7...Skirt, 8.9...Opening, 10...Inner casing.

Claims (8)

【特許請求の範囲】[Claims] （１）金属外部ケーシングおよびサーモプラスチックを
用いて回転成形することによって金属ケーシング内に形
成した付着する内部ケーシングから成るドラムのような
貯蔵容器を形成する方法において、成形後内部ケーシン
グは内部ケーシングを金属ケーシングから離す収縮を受
け、内部ケーシングの成形および収縮後、気泡構造を生
じさせずかつ外部ケーシングおよび内部ケーシングを形
成する材料に充分付着するエラストマー性樹脂が外部ケ
ーシングおよび内部ケーシングの間に注入されてこれら
のケーシング間に形成された空間を充填し、すべての対
向する表面にわたって結合することを特徴とする方法。(1) A method of forming a drum-like storage container consisting of a metal outer casing and an adherent inner casing formed within the metal casing by rotomolding with a thermoplastic, wherein after molding the inner casing replaces the inner casing with a metal An elastomeric resin is injected between the outer casing and the inner casing that undergoes shrinkage away from the casing and, after molding and shrinkage of the inner casing, does not create a cell structure and adheres well to the material forming the outer casing and the inner casing. A method characterized in that the space formed between these casings is filled and bonded over all opposing surfaces. （２）請求項１記載の方法において、エラストマー性樹
脂が金属ケーシングの底部に予め設けられたオリフィス
を通して注入され、開口が金属ケーシングの他の部分に
設けられていることを特徴とする方法。2. A method as claimed in claim 1, characterized in that the elastomeric resin is injected through an orifice provided in the bottom of the metal casing, with openings provided in other parts of the metal casing. （３）請求項１または２記載の方法において、エラスト
マー性樹脂の注入圧力が０．１および２ＭＰａの間であ
ることを特徴とする方法。(3) A method according to claim 1 or 2, characterized in that the injection pressure of the elastomeric resin is between 0.1 and 2 MPa. （４）請求項１ないし３のいずれか１項に記載の方法に
おいて、内部ケーシングはエラストマー性樹脂の注入中
７５，０００ないし１５０，０００Ｐａ絶対値の内部部
分真空の下に維持されることを特徴とする方法。(4) A method according to any one of claims 1 to 3, characterized in that the inner casing is maintained under an internal partial vacuum of 75,000 to 150,000 Pa absolute during the injection of the elastomeric resin. How to do it. （５）請求項１ないし４のいずれか１項に記載の方法に
おいて、エラストマー性樹脂の注入後内部ケーシングは
２４時間ないし６０時間２０℃および６０℃の間の温度
の液体が充填されることを特徴とする方法。(5) A method according to any one of claims 1 to 4, characterized in that after injection of the elastomeric resin, the inner casing is filled with a liquid at a temperature between 20° C. and 60° C. for 24 hours to 60 hours. How to characterize it. （６）請求項１ないし５のいずれか１項に記載の方法に
おいて、内部ケーシングが弗化樹脂の回転成形で形成さ
れることを特徴とする方法。(6) A method according to any one of claims 1 to 5, characterized in that the inner casing is formed by rotational molding of a fluorinated resin. （７）請求項６記載の方法において、弗化樹脂は弗化ビ
ニリデンに基づく樹脂であることを特徴とする方法。(7) The method according to claim 6, wherein the fluorinated resin is a resin based on vinylidene fluoride. （８）請求項６および７のいずれか１つに記載の方法に
おいて、弗化樹脂から作られたケーシングの回転成形後
、エラストマー性ポリウレタン樹脂が注入されることを
特徴とする方法。8. A method according to claim 6, characterized in that, after rotational molding of the casing made of fluorinated resin, the elastomeric polyurethane resin is injected.
JP63149220A 1987-06-19 1988-06-16 Method of forming storage vessel such as drum Pending JPH01280513A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8708697 1987-06-19
FR8708697A FR2616706B1 (en) 1987-06-19 1987-06-19 PROCESS FOR PRODUCING A RESERVOIR SUCH AS A FUT

Publications (1)

Publication Number Publication Date
JPH01280513A true JPH01280513A (en) 1989-11-10

Family

ID=9352318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63149220A Pending JPH01280513A (en) 1987-06-19 1988-06-16 Method of forming storage vessel such as drum

Country Status (8)

Country Link
JP (1) JPH01280513A (en)
CH (1) CH677335A5 (en)
DE (1) DE3820401A1 (en)
ES (1) ES2007941A6 (en)
FR (1) FR2616706B1 (en)
GB (1) GB2205778B (en)
IT (1) IT1217845B (en)
NL (1) NL8801548A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2264346B1 (en) * 2004-09-30 2007-12-01 Jose Antonio Pelaez Montilla PROCEDURE FOR THE MANUFACTURE OF A THERMAL GARRAFA.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL136484C (en) * 1964-11-03 1900-01-01
DE1696287A1 (en) * 1968-03-01 1971-12-23 Thermovox Gmbh Process for lining metal containers with a protective plastic layer and metal containers lined according to this process
US3738527A (en) * 1970-11-18 1973-06-12 J Townsend Method of manufacturing and liner for liquid storage tank
DE2613960A1 (en) * 1976-04-01 1977-10-20 Guenter Mueller BALL TANK, IN PARTICULAR FOR HEATING OIL, AND PROCESS FOR ITS PRODUCTION
US4625892A (en) * 1983-09-14 1986-12-02 Poly Processing Company, Inc. Polyolefin tank within a metallic tank

Also Published As

Publication number Publication date
DE3820401A1 (en) 1988-12-29
FR2616706B1 (en) 1989-11-17
IT8821014A0 (en) 1988-06-17
GB8814193D0 (en) 1988-07-20
FR2616706A1 (en) 1988-12-23
IT1217845B (en) 1990-03-30
GB2205778B (en) 1990-07-04
ES2007941A6 (en) 1989-07-01
NL8801548A (en) 1989-01-16
GB2205778A (en) 1988-12-21
CH677335A5 (en) 1991-05-15

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