JPH0824781A - Method for coating hull block - Google Patents

Method for coating hull block

Info

Publication number
JPH0824781A
JPH0824781A JP6194482A JP19448294A JPH0824781A JP H0824781 A JPH0824781 A JP H0824781A JP 6194482 A JP6194482 A JP 6194482A JP 19448294 A JP19448294 A JP 19448294A JP H0824781 A JPH0824781 A JP H0824781A
Authority
JP
Japan
Prior art keywords
coating
polyurethane
coated
spray
steel sheet
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
JP6194482A
Other languages
Japanese (ja)
Inventor
Akio Shibata
昭男 柴田
Kenichiro Matsuda
健一郎 松田
Junichiro Toyoda
絢一郎 豊田
Tokiaki Ishikawa
時昭 石川
Nobuhisa Toda
展久 戸田
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.)
Kansai Paint Co Ltd
Mitsubishi Heavy Industries Ltd
Original Assignee
Kansai Paint Co Ltd
Mitsubishi Heavy Industries Ltd
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
Application filed by Kansai Paint Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical Kansai Paint Co Ltd
Priority to JP6194482A priority Critical patent/JPH0824781A/en
Publication of JPH0824781A publication Critical patent/JPH0824781A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To shorten the time of works and to reduce cost by shotblasting a steel sheet, spray-coating only the necessary part of the sheet with the polyurethane-base paint and amine catalyst, drying the sheet, cutting the sheet and welding the relevant sheets to form a block. CONSTITUTION:When a hull block is coated, a steel sheet is firstly shotblasted or pickled and then shop-coated with a primer or chemical conversion-coated, and only the part of the sheet to be double side-coated is spray-coated with a polyurethane-base paint quickly curable in the presence of an amine catalyst and the amine catalyst by using a spray gun moved under numerical control, and the paint is cured at ordinary temps. The sheet is then cut to a specified shape under numerical control, and a relevant steel sheet is welded to the part not coated with the paint to form a block. The block is then secondarily primer- coated and secondarily coated. Consequently, the time of works is shortened, the production cost is reduced, and the manpower is saved by full automation.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は船体ブロックの塗装方法
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for coating hull blocks.

【0002】[0002]

【従来の技術】従来、船舶の建造は、まず鋼板をショッ
トブラスト処理し、ついでショッププライマー塗装、鋼
板の切断・曲げ加工、ブロック組立、ブロックの二次塗
装、艤装工事の主要工程を順次経て行われている。これ
等の工程の中で、ブロック組立後の下塗り塗装及び上塗
り塗装が行われる際、鋼板の切断、曲げ加工及びブロッ
ク組立時の溶接により損傷を受けた部分や屋外で暴露さ
れて赤さびや白さびが発生した部分に、予め二次表面処
理が行われる。この二次表面処理作業は、汚い作業環境
で、重労働、高所作業となり多大なコストがかかる。さ
らに、屋外での作業となるため、天候に左右されやす
く、作業の平準化がはかれないという問題が内在してい
る。これ等の問題を解決する方法として、図2の工程ブ
ロック図に示すようにショッププライマー塗装を施した
鋼板の表面に静電粉体塗料を全面に塗布し、ついで塗布
した粉体塗料の不要部分をNC制御により移動する吸引
ノズルを介して除去したのち焼付けを行い、この鋼板を
NC制御により所定の形状に切断して、その塗り残し部
に関係鋼板を溶接してブロックを形成する方法が提案さ
れている(例えば特開平5−200359号公報)。
2. Description of the Related Art Conventionally, in the construction of ships, steel plates are first shot-blasted, then the shop primer coating, steel plate cutting / bending, block assembly, block secondary coating, and outfitting work are performed in sequence. It is being appreciated. In these processes, when undercoating and overcoating are performed after the block is assembled, the parts that have been damaged by cutting and bending of the steel plate and welding during the block assembly and exposed outdoors are red rust and white rust. The secondary surface treatment is performed in advance on the portion where is generated. This secondary surface treatment work requires heavy labor and high place work in a dirty work environment, and is very costly. Further, since the work is performed outdoors, there is an inherent problem that it is easily affected by the weather and the work cannot be leveled. As a method to solve these problems, as shown in the process block diagram of FIG. 2, the electrostatic powder coating is applied to the entire surface of the steel plate coated with shop primer, and then the unnecessary portion of the powder coating is applied. Is removed through a suction nozzle that moves under NC control, then baked, then this steel plate is cut into a predetermined shape by NC control, and a steel plate is welded to the unpainted part to form a block. (For example, Japanese Patent Laid-Open No. 5-200359).

【0003】[0003]

【発明が解決しようとする課題】前記した船体のブロッ
ク塗装方法によれば、NC制御の利用により省力、省人
化、未塗着粉体塗料の回収、再使用による塗装効率の向
上、溶剤を使用しないことによる作業環境の改善等の効
果が得られる。しかし、前記した船体のブロック塗装方
法によれば、ショッププライマー塗布した鋼板の表面に
静電粉体塗料を塗装する工程、NC制御による不要な粉
体塗料を除去する工程及び粉体塗料の焼付工程からなる
3工程を経てNC制御による切断工程に移される。この
粉体塗料の塗装から焼付までの3工程には30分〜90
分もの余計の長時間を必要とし、工程を延長する欠点が
あるので工程の短縮のために、高周波誘導加熱による焼
付が行われている。この加熱方法によると焼付時間は短
縮されるが多大な熱エネルギーを必要とする欠点が生じ
る。さらにこの方法では塗装不要部の粉体塗料を回収す
る時間と手数を要する工程が必要となり、工程の省略化
及び省エネルギー化に反し、その改良が強く望まれてい
る。
According to the block coating method for a hull described above, use of NC control saves labor and manpower, recovers uncoated powder coating, improves coating efficiency by reuse, and eliminates solvent. The effect of improving the work environment by not using it can be obtained. However, according to the above-mentioned block coating method for a hull, a step of coating electrostatic powder coating on the surface of a steel plate coated with shop primer, a step of removing unnecessary powder coating by NC control, and a step of baking powder coating. Then, the process is transferred to the cutting process under NC control through the three processes. It takes 30 minutes to 90 for 3 steps from coating of powder coating to baking.
Since it requires an extra long time and has the drawback of extending the process, baking by high frequency induction heating is performed to shorten the process. According to this heating method, the baking time is shortened, but there is a drawback that a large amount of heat energy is required. Furthermore, this method requires a process that requires time and effort to collect the powder coating material in the unpainted portion, which is contradictory to the omission of the process and energy saving, and its improvement is strongly desired.

【0004】[0004]

【課題を解決するための手段】本発明は、このような状
況に鑑み提案されたもので、工期の短縮、生産コストの
低減、全自動化による省人省力化等有効な船体ブロック
の塗装方法を提供することを目的とするものである。本
発明は、 「1. ショットブラスト又は酸洗処理した後、直接、
もしくはショッププライマー塗装又は化成皮膜処理を施
した後、鋼板の両面の塗装が必要な部分にのみ、NC制
御により移動するスプレーガンを介してアミン触媒の存
在下で速硬化するポリウレタン系塗料とアミン触媒をス
プレー塗布し、常温で硬化させる塗布乾燥工程;該塗布
乾燥工程を終えた鋼板をNC制御により所定の形状に切
断し、ポリウレタン系塗料の塗り残し部に関係鋼板を溶
接してブロックを形成する工程;及び該ブロックを二次
下地処理した後二次塗装を施す工程;からなることを特
徴とする船体ブロックの塗装方法。 2. ポリウレタン系塗料とアミン触媒のスプレー塗布
が、アミン触媒の蒸気または霧を噴霧エアー中に含有さ
せて噴霧塗装する方法である、1項に記載された船体ブ
ロックの塗装方法。 3. ポリウレタン塗料を鋼板の切断部と溶接部に該当
する箇所を塗り残して塗布する、1項または2項に記載
された船体ブロックの塗装方法。 4. ポリウレタン塗料の噴霧塗装における塗装ミスト
をシェービングエアーを用いてカットし、塗装不要部分
への付着を防止する、1項ないし3項のいずれか1項に
記載された船体ブロックの塗装方法。」 に関する。以下本発明を具体的に説明する。
The present invention has been proposed in view of such a situation, and provides a method for coating a hull block which is effective in shortening the construction period, reducing the production cost, and saving labor and labor through full automation. It is intended to be provided. The present invention provides "1. directly after shot blasting or pickling treatment,
Or, after applying shop primer coating or chemical conversion coating, polyurethane coating and amine catalyst that cures rapidly in the presence of amine catalyst through a spray gun that moves by NC control only on the parts that require coating on both sides of the steel sheet. Coating drying step of spray coating and curing at room temperature; the steel sheet that has undergone the coating and drying step is cut into a predetermined shape by NC control, and the related steel sheet is welded to the uncoated portion of the polyurethane-based coating to form a block. And a step of subjecting the block to a secondary base treatment and then applying a secondary coating, the coating method of the hull block. 2. The method for coating a hull block according to Item 1, wherein the spray coating of the polyurethane-based paint and the amine catalyst is a method in which vapor or mist of the amine catalyst is contained in spray air to perform spray coating. 3. The method for coating a hull block according to item 1 or 2, wherein the polyurethane coating is applied by leaving the portions corresponding to the cut portion and the welded portion of the steel sheet unpainted. 4. The method for coating a hull block according to any one of items 1 to 3, wherein the coating mist in the spray coating of polyurethane coating is cut by using shaving air to prevent the coating mist from adhering to an unnecessary coating portion. Regarding The present invention will be specifically described below.

【0005】[0005]

【作用】本発明によれば、図1の工程ブロック図に示す
ように、ショットブラスト又は酸洗処理された定尺鋼板
は、ショッププライマー塗装又は化成皮膜処理が施され
た後、ウエットオンウエット方式でアミンの存在下で速
硬化するポリウレタン系塗料が塗装の必要部分にNC制
御により移動するスプレーガンを介して塗装される。す
なわち、後続工程によって行われる鋼板の切断部、溶接
部及び焼曲部を塗り残す形で塗装される。該ポリウレタ
ン系塗料は速硬化性であり常温で1〜5分間で硬化す
る。
According to the present invention, as shown in the process block diagram of FIG. 1, shot blasted or pickled regular length steel sheets are subjected to shop primer coating or chemical conversion coating treatment, and then wet on wet system. At this point, a polyurethane-based paint which quickly cures in the presence of amine is applied to a necessary portion of the paint through a spray gun which moves by NC control. That is, the cut portion, the welded portion, and the bent portion of the steel plate, which is performed in the subsequent process, are applied in a form that remains unpainted. The polyurethane-based paint is fast-curing and cures at room temperature in 1 to 5 minutes.

【0006】ついで、従来の船体の建造と同様にしてポ
リウレタン系塗料が塗布された鋼板はNC制御により所
定の形状に切断され、ポリウレタン系塗料の塗り残し部
に関係鋼板が溶接され中組ブロックを形成し、さらに中
組ブロックを複数個溶接して大組ブロックを形成する。
該大組ブロックは二次下地処理されたのち二次塗装が施
され総組ブロックを形成する。
Then, the steel sheet coated with the polyurethane paint is cut into a predetermined shape by NC control in the same manner as in the construction of a conventional hull, and the steel plates concerned are welded to the unpainted portion of the polyurethane paint to form the middle block. Then, a plurality of medium-sized blocks are welded to form a large-sized block.
The large set block is subjected to a secondary base treatment and then subjected to secondary coating to form a total set block.

【0007】本発明は、従来の塗布乾燥工程で行われて
いる粉体塗料を全面に塗布し、粉体塗料の不要部分を吸
引ノズルを介して除去することによって塗り残し部を形
成する方法に代えて、アミンの存在下で常温で速硬化す
るポリウレタン系塗料を用いてNC制御により必要部分
にのみ塗布し、塗り残し部を形成する点に従来と異なる
大きな特徴を有するものである。
The present invention relates to a method for forming an uncoated portion by applying a powder coating material on the entire surface, which is carried out in a conventional coating and drying step, and removing an unnecessary portion of the powder coating material through a suction nozzle. Instead, it has a major feature that is different from the conventional one in that a polyurethane-based coating material which is rapidly cured at room temperature in the presence of amine is applied to only a necessary portion by NC control to form an uncoated portion.

【0008】前記したポリウレタン系塗料は、従来から
公知のものを使用することができる(例えば、特開昭5
8−5345号、特開昭58−78737号、特開昭6
1−278571号、特開昭62−236816号公報
参照)。この塗料は、ヒドロキシル基とイソシアネート
基との反応やチオール基とイソシアネート基との反応を
用い、アミン、特にジメチルエタノールアミン等の三級
アミンの存在下で速硬化するタイプの塗料であって、ア
ミンを予め混合して塗装すると可塗装時間が短いので、
三級アミン蒸気を噴霧エアー中に含有させるベーパーイ
ンジェクションキュアー(VIC)方式、三級アミンミ
ストを噴霧エアー中に含有させるミストインジェクショ
ンキュアー(MIC)方式と称される塗装方法によって
塗装される。
As the above-mentioned polyurethane-based coating material, a conventionally known coating material can be used (for example, Japanese Patent Laid-Open Publication No. Sho 5).
8-53345, JP-A-58-78737, JP-A-6
1-278871, JP-A-62-236816). This coating is a type of coating that uses a reaction between a hydroxyl group and an isocyanate group or a reaction between a thiol group and an isocyanate group to cure rapidly in the presence of an amine, particularly a tertiary amine such as dimethylethanolamine. If you mix and paint in advance, the coatable time is short, so
It is applied by a coating method called a vapor injection cure (VIC) method in which a tertiary amine vapor is contained in spray air, or a mist injection cure (MIC) method in which a tertiary amine mist is contained in spray air.

【0009】ポリウレタン系塗料は、ショッププライマ
ー塗装された鋼板表面における塗装が必要な部分にの
み、すなわち鋼板の切断部、溶接部に該当する箇所を塗
り残した形で塗装しなければならない。このような塗装
は、NC制御により自動的に移動可能で且つ塗装ミスト
がシェイビングエアーでほぼ100%カットすることが
出来るスプレーガンを用いて行われ、塗り残し部に塗装
ミストが全くない状態が形成される。ポリウレタン系塗
料の塗装膜厚(乾燥)は、一般に50〜300μmの範
囲であり、塗膜は常温で1〜5分間で硬化する。かくし
てポリウレタン系塗料が塗装された鋼板は、NC制御に
より所定の形状に切断され、中組をへて大組とされ、二
次下地処理され、二次塗装された後総組される。
The polyurethane paint must be applied only on the portion of the surface of the steel sheet that has been subjected to the shop primer coating that needs to be coated, that is, the portion corresponding to the cut portion and the weld portion of the steel sheet is left unpainted. Such coating is performed by using a spray gun that can be automatically moved by NC control and can cut the coating mist by shaving air to almost 100%, and there is no coating mist in the uncoated portion. To be done. The coating film thickness (dry) of the polyurethane-based paint is generally in the range of 50 to 300 μm, and the coating film cures at room temperature in 1 to 5 minutes. Thus, the steel sheet coated with the polyurethane-based paint is cut into a predetermined shape by NC control, the middle set is cut into a large set, the secondary base treatment is performed, the secondary coating is performed, and then the entire set is performed.

【0010】[0010]

【実施例】本発明の特徴であるNC制御によるVIC塗
装工程について説明する。
EXAMPLE A VIC coating process under NC control, which is a feature of the present invention, will be described.

【0011】実施例1 ショットブラスト処理された鋼板(3m×15m)に、
ショッププライマー(関西ペイント株式会社製、商品
名:SDジンク#1000HA(S))を塗装し、その
上にウエットオンウエット方式で下記配合からなるポリ
ウレタン塗料を図1に示す塗装工程に従って塗装した。 〔ポリウレタン塗料配合〕 メルカプトブロピオン酸とペンタエリスリトールのエステル化反応で得られる ペンタエリストールテトラキス−(β−チオプロピオネート) 25重量部 チタン白 4.5重量部 カーボンブラック 0.5重量部 タルク 35重量部 キシレン 7重量部 ジフェニルメタン4,4′−ジイソシアネート 28重量部 合 計 100重量部 ポリウレタン塗料の塗装は、VIC方式で発生させたジ
メチルエタノールアミンの噴霧エアー中の濃度を100
ppmになるように調整したのち、シェイビングエアー
で塗装ミストをカットすることが可能なエアースプレー
ガンを用いてNC制御により溶接溶断部を塗り残すよう
に予め決められたパターンに塗装した。塗装後、常温で
3分間放置することによって塗膜は硬化し、鋼板を次の
工程の送ることが可能となった。ポリウレタン塗膜の性
能は、後記表1の通りである。
Example 1 Shot-blasted steel plate (3 m × 15 m) was
A shop primer (manufactured by Kansai Paint Co., Ltd., trade name: SD Zinc # 1000HA (S)) was applied, and a polyurethane paint having the following composition was applied by a wet-on-wet method according to the application process shown in FIG. [Polyurethane coating composition] Pentaerythritol tetrakis- (β-thiopropionate) obtained by esterification reaction of mercaptobropionic acid and pentaerythritol 25 parts by weight Titanium white 4.5 parts by weight Carbon black 0.5 parts by weight Talc 35 parts by weight Xylene 7 parts by weight Diphenylmethane 4,4'-diisocyanate 28 parts by weight Total 100 parts by weight The polyurethane paint is applied by spraying dimethylethanolamine generated by the VIC method at a concentration of 100 in the spray air.
After adjusting so as to be ppm, it was applied in a predetermined pattern by NC control using an air spray gun capable of cutting the coating mist with shaving air so as to leave the weld melted portion uncoated. After coating, the coating film was cured by leaving it at room temperature for 3 minutes, and the steel sheet was ready for the next step. The performance of the polyurethane coating film is as shown in Table 1 below.

【0012】実施例2 実施例1において、ショッププライマーを使用しない
で、ショットブラスト処理された鋼板に直接ポリウレタ
ン系塗料を塗装した以外は同様にして行った。ポリウレ
タン塗膜の性能は、後記表1の通りである。
Example 2 The same procedure as in Example 1 was carried out except that the shop primer was not used and the polyurethane paint was directly coated on the shot-blasted steel sheet. The performance of the polyurethane coating film is as shown in Table 1 below.

【0013】比較例1 実施例1において用いたポリウレタン系塗料の代わり
に、関西ペイント株式会社製エポキシ系粉体塗料(商品
名:エバクラッド3000)を図2に示す塗装工程に従
って塗装し、粉体塗料の不要部分は吸引ノズルを介して
除去した。ついで170℃、20分間硬化させた。硬化
塗膜の性能は後記表1の通りである。
Comparative Example 1 Instead of the polyurethane paint used in Example 1, an epoxy powder paint (trade name: EVACLAD 3000) manufactured by Kansai Paint Co., Ltd. was applied according to the painting process shown in FIG. The unnecessary portion of was removed through the suction nozzle. Then, it was cured at 170 ° C. for 20 minutes. The performance of the cured coating film is as shown in Table 1 below.

【0014】比較例2 実施例1においてポリウレタン系塗料の代わりにタール
エポキシ系塗料(関西ペイント株式会社製、商品名:エ
ポシール600)を用いる以外は同様にして行った。タ
ールエポキシ塗膜の性能は後記表1の通りである。
Comparative Example 2 The same procedure as in Example 1 was repeated except that a tar epoxy coating (Kansai Paint Co., Ltd., trade name: Eposir 600) was used in place of the polyurethane coating. The performance of the tar epoxy coating film is shown in Table 1 below.

【0015】[0015]

【表1】 [Table 1]

【0016】註1 5%塩化ナトリウム水溶液に浸漬。
さび、ふくれのないものを良好と表示。 註2 −1500mV付加の条件下で室温で3週間浸漬
試験。クリープ侵入巾の小さいものが良好。 註3 60℃に保持され、水酸化ナトリウムでpH3±
0.2に調整された下記組成からなる溶液に1ケ月間浸
漬。さび、ふくれのないものを良好と表示。 塩化ナトリウム 50g 酢酸 10ml 30%過酸化水素 5g 水 1000ml 註4 硫黄分2〜2.4%、粘度15〜16センチポイ
ズ/30℃及び比重0.877〜0.879(20℃)
のカフジ原油に浸漬。さび、ふくれのないものを良好と
表示。
Note 15 Soak in a 15% sodium chloride aqueous solution.
Items without rust and blisters are displayed as good. Note 2: Immersion test at room temperature for 3 weeks under the condition of adding 1500 mV. Good with a small creep penetration width. Note 3 Keep at 60 ℃, pH 3 ± 3 with sodium hydroxide.
Immerse in a solution of the following composition adjusted to 0.2 for 1 month. Items without rust and blisters are displayed as good. Sodium chloride 50g Acetic acid 10ml 30% Hydrogen peroxide 5g Water 1000ml Note 4 Sulfur content 2 to 2.4%, viscosity 15 to 16 centipoise / 30 ° C and specific gravity 0.877 to 0.879 (20 ° C)
Soaked in crude oil of Khafji. Items without rust and blisters are displayed as good.

【0017】[0017]

【発明の効果】本発明において、図2に示す静電粉体塗
装工程、NC粉体除去工程及び粉体塗料焼付工程の3工
程(比較例)を、図1に示すNCによるVIC又はMI
C塗装工程(実施例)に置換したことにより、粉体塗料
の場合のような焼付装置が不要となるため、省エネルギ
ー化が可能であり且つ工程の短縮化をはかることが出来
る。しかも、塗膜性能においてもポリウレタン系塗料は
従来の粉体塗料と同等の性能を示す。また、本塗装方法
を採用することにより常温で超速硬化でのプレコート化
が可能になるという優れた効果が奏される。
In the present invention, the three steps (comparative example) of the electrostatic powder coating step, the NC powder removing step and the powder coating baking step shown in FIG. 2 are performed by the VIC or MI by NC shown in FIG.
By substituting the C coating process (example), a baking device as in the case of powder coating is not required, so that energy saving can be achieved and the process can be shortened. Moreover, in terms of coating film performance, polyurethane-based paints exhibit the same performance as conventional powder paints. Further, by adopting the present coating method, there is an excellent effect that it becomes possible to perform pre-coating by super fast curing at room temperature.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す船体建造工程図であ
る。
FIG. 1 is a process chart for constructing a hull showing an embodiment of the present invention.

【図2】従来の船体建造工程図である。FIG. 2 is a conventional hull building process diagram.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B05D 3/10 F 7415−4F A 7415−4F 3/12 B 7415−4F 7/24 301 V 7415−4F 302 T 7415−4F (72)発明者 豊田 絢一郎 兵庫県尼崎市神崎町33番1号 関西ペイン ト株式会社内 (72)発明者 石川 時昭 神奈川県平塚市東八幡4丁目17番1号 関 西ペイント株式会社内 (72)発明者 戸田 展久 兵庫県尼崎市神崎町33番1号 関西ペイン ト株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B05D 3/10 F 7415-4F A 7415-4F 3/12 B 7415-4F 7/24 301 V 7415 −4F 302 T 7415−4F (72) Inventor Ayichiro Toyoda 33-1 Kanzakicho, Amagasaki City, Hyogo Prefecture Kansai Paint Co., Ltd. (72) Inventor Toshiaki Ishikawa 4-17-1 Higashihachiman, Hiratsuka City, Kanagawa Prefecture Kansai Paint Co., Ltd. (72) Inventor Nobuhisa Toda 33-1 Kanzaki-cho, Amagasaki City, Hyogo Prefecture Kansai Paint Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 ショットブラスト又は酸洗処理した後、
直接、もしくはショッププライマー塗装又は化成皮膜処
理を施した後、鋼板の両面の塗装が必要な部分にのみ、
NC制御により移動するスプレーガンを介してアミン触
媒の存在下で速硬化するポリウレタン系塗料とアミン触
媒をスプレー塗布し、常温で硬化させる塗布乾燥工程;
該塗布乾燥工程を終えた鋼板をNC制御により所定の形
状に切断し、ポリウレタン系塗料の塗り残し部に関係鋼
板を溶接してブロックを形成する工程;及び該ブロック
を二次下地処理した後二次塗装を施す工程;からなるこ
とを特徴とする船体ブロックの塗装方法。
1. After shot blasting or pickling treatment,
Directly, or after applying shop primer coating or chemical conversion coating, only on the parts of the steel sheet that require coating,
A coating / drying step of spray-coating a polyurethane-based paint that is rapidly cured in the presence of an amine catalyst and an amine catalyst through a spray gun that moves under NC control, and curing at room temperature;
The step of cutting the steel sheet that has undergone the coating and drying step into a predetermined shape by NC control, and welding the relevant steel sheet to the unpainted portion of the polyurethane-based coating to form a block; A method for coating a hull block, which comprises the step of applying a subsequent coating.
【請求項2】 ポリウレタン系塗料とアミン触媒のスプ
レー塗布が、アミン触媒の蒸気または霧を噴霧エアー中
に含有させて噴霧塗装する方法である、請求項1に記載
された船体ブロックの塗装方法。
2. The method for coating a hull block according to claim 1, wherein the spray coating of the polyurethane-based paint and the amine catalyst is a method of spray coating in which vapor or mist of the amine catalyst is contained in spray air.
【請求項3】 ポリウレタン塗料を鋼板の切断部と溶接
部に該当する箇所を塗り残して塗布する、請求項1また
は2に記載された船体ブロックの塗装方法。
3. The method for coating a hull block according to claim 1, wherein the polyurethane coating is applied by leaving unpainted portions corresponding to the cut portion and the welded portion of the steel sheet.
【請求項4】 ポリウレタン塗料の噴霧塗装における塗
装ミストをシェービングエアーを用いてカットし、塗装
不要部分への付着を防止する、請求項1ないし3のいず
れか1項に記載された船体ブロックの塗装方法。
4. The coating of the hull block according to claim 1, wherein the coating mist in the spray coating of the polyurethane coating is cut by using shaving air to prevent the coating mist from adhering to an unnecessary coating portion. Method.
JP6194482A 1994-07-18 1994-07-18 Method for coating hull block Pending JPH0824781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6194482A JPH0824781A (en) 1994-07-18 1994-07-18 Method for coating hull block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6194482A JPH0824781A (en) 1994-07-18 1994-07-18 Method for coating hull block

Publications (1)

Publication Number Publication Date
JPH0824781A true JPH0824781A (en) 1996-01-30

Family

ID=16325277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6194482A Pending JPH0824781A (en) 1994-07-18 1994-07-18 Method for coating hull block

Country Status (1)

Country Link
JP (1) JPH0824781A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007268437A (en) * 2006-03-31 2007-10-18 Jfe Mechanical Co Ltd Method and apparatus for block transfer in air blasting and painting facilities
KR100923398B1 (en) * 2007-12-21 2009-10-23 현대중공업 주식회사 A full covering system to protect the scattering silicone paint in dock
CN116273796A (en) * 2022-11-25 2023-06-23 沪东中华造船(集团)有限公司 MARKIII type fuel tank coating method for refitting dual-fuel container ship

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126943A (en) * 1974-08-29 1976-03-05 Mitsui Toatsu Chemicals Tosobutsu no hakuriseihogotomaku no keiseiho
JPS57180460A (en) * 1981-04-30 1982-11-06 Toshiyuki Kadowaki Electrostatic coating method
JPS6415174A (en) * 1987-07-07 1989-01-19 Mitsubishi Heavy Ind Ltd Coating method
JPH047062A (en) * 1990-04-25 1992-01-10 Mitsubishi Heavy Ind Ltd Coating method
JPH05200359A (en) * 1992-01-28 1993-08-10 Mitsubishi Heavy Ind Ltd Method for coating hull block or the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126943A (en) * 1974-08-29 1976-03-05 Mitsui Toatsu Chemicals Tosobutsu no hakuriseihogotomaku no keiseiho
JPS57180460A (en) * 1981-04-30 1982-11-06 Toshiyuki Kadowaki Electrostatic coating method
JPS6415174A (en) * 1987-07-07 1989-01-19 Mitsubishi Heavy Ind Ltd Coating method
JPH047062A (en) * 1990-04-25 1992-01-10 Mitsubishi Heavy Ind Ltd Coating method
JPH05200359A (en) * 1992-01-28 1993-08-10 Mitsubishi Heavy Ind Ltd Method for coating hull block or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007268437A (en) * 2006-03-31 2007-10-18 Jfe Mechanical Co Ltd Method and apparatus for block transfer in air blasting and painting facilities
KR100923398B1 (en) * 2007-12-21 2009-10-23 현대중공업 주식회사 A full covering system to protect the scattering silicone paint in dock
CN116273796A (en) * 2022-11-25 2023-06-23 沪东中华造船(集团)有限公司 MARKIII type fuel tank coating method for refitting dual-fuel container ship

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