JPS605354B2 - How to repair metal cans - Google Patents
How to repair metal cansInfo
- Publication number
- JPS605354B2 JPS605354B2 JP14390881A JP14390881A JPS605354B2 JP S605354 B2 JPS605354 B2 JP S605354B2 JP 14390881 A JP14390881 A JP 14390881A JP 14390881 A JP14390881 A JP 14390881A JP S605354 B2 JPS605354 B2 JP S605354B2
- Authority
- JP
- Japan
- Prior art keywords
- paint film
- paint
- metal
- film
- paints
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 title claims description 27
- 230000008439 repair process Effects 0.000 title description 12
- 239000003973 paint Substances 0.000 claims description 64
- 239000007921 spray Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は金属缶の補修方法に関し、さらに詳しくは塗料
による金属缶の補修方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for repairing metal cans, and more particularly to a method for repairing metal cans using paint.
金属缶（本明細書においては金属缶胴体および金属蓋を
も含めて金属缶とよぶ）、例えば側面接合部が溶接によ
り形成された金属缶胴体は、通常側面接合部およびその
近傍以外の部分は予め塗膜又は印刷膜が形成されている
が、側面接合部およびその近傍は金属面が露出している
ので、防錆、防食、美観等の点から露出金属面を補修す
る必要がある。補修方法としては、目的に応じて粉体塗
装、プラスチックフィルムの融着等の種々の方法が採用
されるが、比較的薄い塗膜の形成で補修の目的が蓬せら
れる場合は、溶剤型塗料のヱアレススプレーによる塗装
を採用することが多い。この場合、従来は第１図に示す
ように、エアレススプレーノズル１からの噴出する塗料
のスプレーパターン２の霧化領域３を被塗装面４（側面
溶接部５ａおよびその近傍５ａ′附近に対応）に当てて
塗装を行なっていた。なお第１図において、５は金属缶
胴体、５ａは側面溶接部、６は側面溶接部５ａおよびそ
の近傍５ａ′となるべき部分を除いて予め金属ブランク
（図示せず、５に対応）に形成された内面塗膜である。
そのため第１図、第２図に示すように、塗料が被塗装面
４以外の内面塗膜６の上の側面溶接部５ａを遥か離れた
部分に多量に飛散するという現象が起る。従って被塗装
面４上の塗着塗料膜７の境界７ａ（すなわち補修部の境
界）が不明瞭となるばかりか、側面溶接部５ａを遥か離
れた内面塗膜６の面上にも塗着塗料膜７が多数飛沫状に
形成される。通常は塗着塗料膜７のキュアのための加熱
は、側面溶接部５ａおよびその近傍５ａ′に対してのみ
に行なわれるので、前記飛沫状に形成された塗看塗料膜
７の多くはキュア不十分かキュアされることなく、金属
缶胴体５の内面に残ることになる。そのため補修后の外
観が汚い（特に缶外面補修の場合）のみならず、内容品
を充填密封した後、該飛沫状の塗着塗料膜７が剥離して
内容品中に混入したり、あるいは該塗着塗料膜７中の低
分子量成分が内容液中に溶出して衛生上の問題を招くお
それがある。これを防止するため、側面溶袋部５ａを遥
か離れた部分をもキュア温度まで加熱することは、加熱
設備の大型化と加熱エネルギーコストの増大を招き、さ
らに内面塗膜６もしくは外面塗膜又は印刷膜（図示せず
）の局部的オーバキュアという問題を生ずるおそれがあ
る。本発明は以上に述べた従来技術の問題点の解決を図
ることを目的とする。Metal cans (in this specification, the metal can body and metal lid are also referred to as metal cans), for example, a metal can body whose side joints are formed by welding, usually has parts other than the side joints and the vicinity thereof. Although a coating film or a printed film has been formed in advance, the metal surface is exposed at the side joint portion and its vicinity, so it is necessary to repair the exposed metal surface from the viewpoints of rust prevention, corrosion prevention, aesthetics, etc. Various repair methods are used depending on the purpose, such as powder coating and plastic film fusing, but if the purpose of repair is to form a relatively thin coating, solvent-based paints are used. Painting with Ares spray is often used. In this case, conventionally, as shown in FIG. 1, the atomization area 3 of the spray pattern 2 of the paint ejected from the airless spray nozzle 1 was set to the surface 4 to be painted (corresponding to the side weld 5a and its vicinity 5a'). Painting was carried out by applying the paint to the surface. In FIG. 1, 5 is a metal can body, 5a is a side weld, and 6 is a metal blank (not shown, corresponding to 5) formed in advance except for the side weld 5a and its vicinity 5a'. This is the inner surface coating film.
Therefore, as shown in FIGS. 1 and 2, a phenomenon occurs in which a large amount of paint is scattered to a part far away from the side weld 5a on the inner surface coating film 6 other than the surface to be painted 4. Therefore, not only the boundary 7a of the applied paint film 7 on the surface to be painted 4 (that is, the boundary of the repaired part) becomes unclear, but also the paint applied on the surface of the inner surface paint film 6 far away from the side weld 5a. A large number of films 7 are formed in the form of droplets. Normally, heating for curing the applied paint film 7 is performed only on the side weld portion 5a and its vicinity 5a', so most of the applied paint film 7 formed in the form of droplets is not cured. It remains on the inner surface of the metal can body 5 without being sufficiently cured. Therefore, not only will the appearance after repair be dirty (particularly when repairing the outer surface of a can), but after filling and sealing the contents, the sprayed paint film 7 may peel off and get mixed into the contents. There is a risk that low molecular weight components in the applied paint film 7 will be eluted into the content liquid and cause hygiene problems. In order to prevent this, heating a part far away from the side molten bag 5a to the curing temperature will lead to an increase in the size of the heating equipment and heating energy cost. Problems of localized overcuring of the printed film (not shown) can occur. The present invention aims to solve the problems of the prior art described above.
上記目的を達成するため、本発明はェアレススプレ−ノ
ズルにより面状の塗料膜を有するスプレーパターンを形
成し、該塗料膜を金属缶の補修すべき被塗装面に当てて
塗装することを特徴とする金属缶の補修方法を提供する
ものである。In order to achieve the above object, the present invention is characterized in that a spray pattern having a planar paint film is formed using an airless spray nozzle, and the paint film is applied to the surface of the metal can to be repaired for painting. The present invention provides a method for repairing metal cans.
以下図面を参照しながら本発明について説明する。The present invention will be described below with reference to the drawings.
第３図、第４図、第５図において第１図、第２図と同一
符号の部分は同一部分もしくは同一機能の部分を示す。In FIGS. 3, 4, and 5, parts having the same reference numerals as those in FIGS. 1 and 2 indicate the same parts or parts having the same function.
第１図の場合スプレーパターン２は、霧化領域３と扇形
の面状の塗料膜８よりなる非霧化領域よりなっており、
非霧化領域の大きさは、一般に塗料の噴出圧力の調節に
よって変えることができる。噴出圧力が小さくなるに従
い非霧化領域は大きくなるが、噴出圧力がある値（ェア
レススプレーノズルーの形状、塗料の種類、粘度等によ
って異なる）より小さくなると、扇形面状の形状が崩れ
、凸レンズの断面形状の面状に近づく懐向にある。第３
図、第４図は扇形の面状の塗料膜８の幅が、被塗装面４
の幅（側面溶接部５ａおよびその近傍５ａ′の露出金属
面の幅より若干広い幅）よりも広くなるように噴出圧力
を調節して（通常ゲ−ジ圧で約０．５〜３．０ｋｇ′の
）、面状の塗料膜８を直接被塗装面４に当てながら、金
属缶胴体を矢印方向（第４図）に移動して、被塗装面４
上に塗着塗料膜７を形成する状態を示したものである。
かくすることにより、第５図に示されるように、被塗装
面上の塗着塗料膜７の境界７ａはほぼ直線状にシャープ
になり、また内面塗膜６上に飛沫状の塗着塗料膜が形成
されることがない。面状の塗料膜８をェアレススブレー
ノズルーから形成することができる塗料としては、溶剤
型塗料（この場合水も広義の溶剤として含めるものとす
る）およびオルガノゾル等が好ましい。In the case of FIG. 1, the spray pattern 2 consists of an atomized region 3 and a non-atomized region consisting of a fan-shaped planar paint film 8.
The size of the non-atomized area can generally be varied by adjusting the paint jetting pressure. As the ejection pressure decreases, the non-atomized area becomes larger, but when the ejection pressure becomes smaller than a certain value (which varies depending on the shape of the airless spray nozzle, type of paint, viscosity, etc.), the fan-shaped surface shape collapses, and the non-atomized area becomes larger. It is oriented so that the cross-sectional shape of the convex lens approaches the planar shape. Third
4 shows the width of the fan-shaped paint film 8 on the surface to be painted 4.
(a width slightly wider than the width of the exposed metal surface of the side weld 5a and its vicinity 5a'), the ejection pressure is adjusted so that it is wider than the width (usually about 0.5 to 3.0 kg at gauge pressure). '), while applying the planar paint film 8 directly to the surface to be painted 4, move the metal can body in the direction of the arrow (Fig. 4) and apply it to the surface to be painted 4.
This figure shows the state in which a paint film 7 is formed on top.
As a result, as shown in FIG. 5, the boundary 7a of the applied paint film 7 on the surface to be painted becomes substantially linear and sharp, and the applied paint film 7 in the form of splashes is formed on the inner surface paint film 6. is never formed. Preferred paints that can form the planar paint film 8 from an airless spray nozzle include solvent-based paints (in this case, water is also included as a solvent in a broad sense), organosols, and the like.
上記溶剤型塗料を例示すれば、フェノール・ェポキシ系
塗料、フェノール・アミノ系塗料、アクリル系塗料、ェ
ポキシェステル系、アクリル・アミノ系、アルキツド系
、アミノ・アルキツド系、ポリウレタン系、不飽和ポリ
エステル系、ピニル系、変性ビニル系、ポリブタジェン
系塗料、およびこれらの樹脂の混合系塗料等が挙げられ
る。溶剤の含有量は１０〜９の重量％が好ましい。必要
に応じビヒクル中に顔料を含んでもよい。又、塗料粘度
は一般的に３町抄、以下（２５００、＃４フオードカツ
プ測定）が好ましい。Examples of the above solvent-based paints include phenol/epoxy paints, phenol/amino paints, acrylic paints, epoxy shester paints, acrylic/amino paints, alkyd paints, amino/alkyd paints, polyurethane paints, unsaturated polyester paints, and pinyl paints. Examples include paints based on polyurethane, modified vinyl, polybutadiene, and mixtures of these resins. The content of the solvent is preferably 10 to 9% by weight. A pigment may be included in the vehicle if necessary. Further, the viscosity of the paint is generally preferably 3-chosho or less (2500, #4 food cup measurement).
粘度を低くしたい時は、通常溶剤にて稀釈するか、塗料
を加溢する。この様な方法で最適粘度が選定される。例
としてある特定のノズルを使用した時の塗料圧力とスプ
レーパターンの関係を表−１に示したが、この表による
とストライプ（すなわち被塗装面４）の中が２物舷以上
を必要とし、且つ缶とノズル間の距離が作業上２仇舷以
上を希望する場合、最適な圧力は１０ｋ９／塊となる。
表−１
註：ＬＩ）使用塗料：ェポキシ・フェノ→し系固形分：
１５重量努粘 度：１５秒（２５℃、＃フォ
ードカジプにて測定）
ノ ズル：ノ‐ドソン婿ｅ製 スベシ
ヤルノードソンクロスカッ
トノズル
（２）Ｌは非霧化領域の長さ、Ｗは非霧
化領域の最大幅を示す（第１図参照）
以上の例では塗料膜８は平面状であったが、円錐面状、
もしくはその他の形状の面状の塗料膜８を用いてもよい
。If you want to lower the viscosity, you usually dilute it with a solvent or flood it with paint. The optimum viscosity is selected in this way. As an example, Table 1 shows the relationship between paint pressure and spray pattern when a specific nozzle is used. According to this table, the inside of the stripe (i.e. the surface to be painted 4) requires two or more sides, In addition, if the distance between the can and the nozzle is desired to be two or more broadsides for work purposes, the optimum pressure is 10k9/lump.
Table-1 Note: LI) Paint used: Epoxy/phenol solid content:
15 Weight effective viscosity: 15 seconds (measured at 25℃, #Ford Kajip) Nozzle: Smooth Nordson cross-cut nozzle (2) manufactured by Nordson Sonoe (2) L is the length of the non-atomizing area, W is the non-atomizing area (See Figure 1.) In the above example, the paint film 8 was planar, but it could also be conical or conical.
Alternatively, a planar paint film 8 having another shape may be used.
本発明は以上に述べた、金属缶胴体の側面溶接部の内外
面の補修に限定されるものでなく、金属缶の各種の補修
に適用できる。The present invention is not limited to the above-mentioned repair of the inner and outer surfaces of the side welded portion of a metal can body, but can be applied to various types of repairs of metal cans.
以下に２、３の例を示す。第６図、第７図は錫めつき鋼
板よりなる絞り−しごき缶胴体１０の底部１１およびそ
の近傍を示したものであって、底部１１には缶胴体の正
立安定性を確保するため環状周縁突出部１２が形成され
ている。A few examples are shown below. Figures 6 and 7 show the bottom 11 and its vicinity of the drawn and ironed can body 10 made of tin-plated steel plate. A peripheral protrusion 12 is formed.
環状周緑突出部１２の接地面１２ａは、搬送のさし、等
の摩擦により表面錫が失なわれ地鉄面が露出して発錆し
易い。そのため接地面１２ａ近傍を塗装により補修する
ことが屡々行なわれる。第７図の７′は、本発明の方法
により接地面１２ａ上に形成された塗着塗料膜よりなる
屍付塗膜を示す。大型缶（例えば２〜１０リットル缶）
の場合、補強効果と意匠効果をあげるために、第８図に
示す缶胴体１３のように、鉢巻状の突出部１４を設ける
ことがある。缶胴体１３が錫めつき鋼板もしくはティン
フリースチール（電解クロム酸処理鋼板）等の表面処理
鋼板よりなる場合、突出部１４は輸送中等に缶胴体同士
の摩擦を受け易い。缶胴体１３の外面は通常印刷膜又は
塗膜が全面に形成されているのであるが、以上の現象の
ために特に突出部１４のみを塗料により補修することが
、防錆の見地から好ましい。７′は本発明の方法により
突出部１４上に形成された塗着塗料膜よりなる焼付塗膜
を示す。The ground surface 12a of the annular green protrusion 12 is susceptible to rust due to surface tin being lost due to friction during transportation, etc., and the base metal surface being exposed. Therefore, the vicinity of the ground plane 12a is often repaired by painting. 7' in FIG. 7 shows a dead paint film formed on the ground surface 12a by the method of the present invention. Large cans (e.g. 2-10 liter cans)
In this case, a headband-shaped protrusion 14 may be provided, as in the case of the can body 13 shown in FIG. 8, in order to increase the reinforcing effect and the design effect. When the can body 13 is made of a surface-treated steel plate such as a tin-plated steel plate or a tin-free steel (electrolytic chromic acid treated steel plate), the protruding portion 14 is susceptible to friction between the can bodies during transportation or the like. The outer surface of the can body 13 is usually covered with a printed film or a coating film, but because of the above phenomenon, it is preferable from the viewpoint of rust prevention to repair only the protrusion 14 with paint. Reference numeral 7' indicates a baked paint film formed on the protrusion 14 by the method of the present invention.
その他図示されないが、プルタブ方式のィージオープン
缶蓋の開□部を区画するスコア部（刻み線）に対応する
当該缶蓋の裏面部分の補修に対しても、本発明は好適に
適用される。Although not shown in the drawings, the present invention is also suitably applied to the repair of the back surface portion of a pull-tab type easy-to-open can lid that corresponds to the score portion (scorched line) that defines the opening section.
本発明によれば、エアレススプレーノズルにより形成さ
れた面状の塗料膜を金属缶の被塗装面に当てて補修する
のであるから、塗着塗料膜により形成された補修部の輪
郭がシャープであり、かつ飛沫状の塗着塗料膜が形成さ
れない。According to the present invention, since the repair is performed by applying a planar paint film formed by an airless spray nozzle to the painted surface of a metal can, the outline of the repaired area formed by the applied paint film is sharp. , and no spray paint film is formed.
従って補修部およびその近傍の外観は美麗であり、また
補修部をキュアのため加熱した後に、未キュアもしくは
不完全キュアの飛沫状の塗着塗料膜が残って、該塗料膜
が内容品中に混入したり、あるいは衛生上の問題を招く
おそれがないという効果を有する。以下実施例について
説明する。Therefore, the appearance of the repaired area and its vicinity is beautiful, and after the repaired area is heated for curing, an uncured or incompletely cured paint film remains in the form of splashes, and the paint film is mixed into the contents. This has the effect that there is no risk of contamination or hygienic problems. Examples will be described below.
実施例
内径６５．３肌、高さ１０物肋のマッシュシーム側面接
合部を有する錫めつき鋼板（厚さ０．２４肋、錫めつき
量（内面）５．２夕／で）よりなる溶接缶胴体を作製し
た。Example Welding made of tinned steel plate (thickness: 0.24 ribs, tin plating amount (inner surface): 5.2 mm) having a mash seam side joint with an inner diameter of 65.3 mm and a height of 10 mm. The can body was made.
溶接部の幅は０．４肌であって、缶胴体の内面の他の部
分はブランクに予め形成されたフェノール・ェポキシ系
糠付塗膜によって被覆されていた。但し側面接合部に対
応する端緑に沿って両面が幅３肌にわたり未塗装部があ
り、溶接缶胴体の内面の露出金属面の幅は５．６側であ
る。エアレススプレーノズル（ノードソン■製、型式：
スベツシャルノードソンクロスカットノズル）を用意し
、下記の塗料を圧力１０ｋｇ′地で噴出させた所、扇形
の面状の塗料膜（底辺までの高さ約２仇肋、底辺の幅約
２２側）よりなる非霧化領域を有するスプレーパターン
が得られることが分った。このエアレススプレーノズル
を下向きにして上記缶胴体内に挿入し、ノズルと溶接部
間の距離を１８側として、缶胴体を２０の／分の速度で
鞠線方向に移動させながら、１０ｋ９′地の圧力で該塗
料を噴出させた所、溶接部およびその近傍にわたり幅２
仇舷の塗着塗料膜が形成され、その輪郭は直線状にシャ
ープであり、飛沫状の塗着塗料膜は全く形成されなかっ
た。その後溶接部およびその近傍を高周波誘導加熱によ
り約２１０ｏ０に加熱して該塗料膜をキュアさせた。キ
ュア後の塗膜厚みは１３Ａ仇であった。塗料：タィプ・
・・・・・ェポキシフェノール系固形分…・・・１５重
量％粘度……１９砂（２５００、＃４フオードカップ）
溶剤組成……ブチルセロソルブ、メチルィソプチルケト
ン、ノルマルプタノール、キシロー′レThe width of the welded portion was 0.4 skin, and the other parts of the inner surface of the can body were covered with a phenol-epoxy bran coating film that had been previously formed on the blank. However, along the edge green corresponding to the side joint, there is an unpainted part over a width of 3 skins on both sides, and the width of the exposed metal surface on the inner surface of the welded can body is 5.6 inches wide. Airless spray nozzle (made by Nordson, model:
The following paint was sprayed at a pressure of 10 kg' using a Svetshall Nordson cross-cut nozzle), and a fan-shaped planar paint film (height to the bottom of the base was approximately 2 ribs, width of the base was approximately 22 mm) was sprayed at a pressure of 10 kg. ) was found to yield a spray pattern with non-atomized areas consisting of: Insert this airless spray nozzle into the can body with it facing downward, set the distance between the nozzle and the welding part to the 18 side, and move the can body in the direction of the marquee at a speed of 20 min. The area where the paint was ejected under pressure, the welded area and its vicinity, with a width of 2
A painted paint film was formed on the side of the ship, and its outline was linear and sharp, and no spattered paint film was formed at all. Thereafter, the welded area and its vicinity were heated to approximately 210°C by high-frequency induction heating to cure the paint film. The coating film thickness after curing was 13A. Paint: Type
... Epoxyphenol solid content ... 15% by weight Viscosity ... 19 sand (2500, #4 food cup)
Solvent composition: butyl cellosolve, methyl lysoptyl ketone, n-butanol, xylol
第１図は従来の補修方法を示す１部切断正面図、第２図
は第１図の０ーロ線からみた平面図であって、塗着塗料
膜の状態を示す図面、第３図は本発明の補修方法の例を
示す１部切断正面図、第４図は第３図に対応する１部切
断側面図、第５図は第３図のＶ−Ｖ線からみた平面図で
あって、塗着塗料膜の状態を示す図面、第６図は絞り−
しごき缶胴体の底部近傍の縦断面図、第７図は第６図の
缶胴体の底部の接地面を本発明の方法により補修した状
態を示す底面図、第８図は鉢巻状の突出部を本発明の方
法により補修された缶胴体の斜視図である。
１・・…・エアレススプレーノズル、４…・・・被塗装
面、５・・…・金属缶胴体（金属缶）、８・・・・・・
面状の塗料膜、１０……絞り‐しごき缶胴体（金属缶）
、１２ａ・・・・・・接地面（被塗装面）、１３・・…
・缶胴体（金属缶）、１４・…・・突出部（被塗装面）
。
第１図第２図
第３図
第４図
第５図
第６図
第７図
第８図Fig. 1 is a partially cutaway front view showing the conventional repair method, Fig. 2 is a plan view taken from the 0-Ro line in Fig. 1, and is a drawing showing the condition of the applied paint film. FIG. 4 is a partially cutaway front view showing an example of the repair method of the present invention, FIG. 4 is a partially cutaway side view corresponding to FIG. 3, and FIG. 5 is a plan view taken along line V-V in FIG. , a drawing showing the state of the applied paint film, Figure 6 is the aperture-
A vertical cross-sectional view of the vicinity of the bottom of the ironed can body, FIG. 7 is a bottom view showing the state in which the contact surface of the bottom of the can body shown in FIG. 6 has been repaired by the method of the present invention, and FIG. FIG. 2 is a perspective view of a can body repaired by the method of the present invention. 1...Airless spray nozzle, 4...Surface to be painted, 5...Metal can body (metal can), 8...
Planar paint film, 10... Squeezing and ironing can body (metal can)
, 12a... ground plane (surface to be painted), 13...
・Can body (metal can), 14... protrusion (surface to be painted)
. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8
Claims (1)
るスプレーパターンを形成し、該塗料膜を金属缶の補修
すべき被塗装面に当てて塗装することを特徴とする金属
缶の補修方法。1. A method for repairing metal cans, which comprises forming a spray pattern having a planar paint film using an airless spray nozzle, and applying the paint film to the surface of the metal can to be repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14390881A JPS605354B2 (en) | 1981-09-14 | 1981-09-14 | How to repair metal cans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14390881A JPS605354B2 (en) | 1981-09-14 | 1981-09-14 | How to repair metal cans |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5845773A JPS5845773A (en) | 1983-03-17 |
| JPS605354B2 true JPS605354B2 (en) | 1985-02-09 |
Family
ID=15349872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14390881A Expired JPS605354B2 (en) | 1981-09-14 | 1981-09-14 | How to repair metal cans |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605354B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3603126A1 (en) * | 1986-02-01 | 1987-08-06 | Schmalbach Lubeca | METHOD AND DEVICE FOR APPLYING LIQUID CORROSION PROTECTIVE AGENTS ON CORROSION HAZARDOUS AREAS OF PACKAGING CONTAINERS OR CONTAINER PARTS |
| JPH0414139Y2 (en) * | 1986-02-19 | 1992-03-31 | ||
| JP4951598B2 (en) * | 2008-08-13 | 2012-06-13 | アクアインテック株式会社 | Housing for underground structures |
| DE102013002412A1 (en) | 2013-02-11 | 2014-08-14 | Dürr Systems GmbH | Application method and application system |
-
1981
- 1981-09-14 JP JP14390881A patent/JPS605354B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5845773A (en) | 1983-03-17 |
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