JPS6285790A - Transport ship for purified petroleum product - Google Patents

Transport ship for purified petroleum product

Info

Publication number
JPS6285790A
JPS6285790A JP60223732A JP22373285A JPS6285790A JP S6285790 A JPS6285790 A JP S6285790A JP 60223732 A JP60223732 A JP 60223732A JP 22373285 A JP22373285 A JP 22373285A JP S6285790 A JPS6285790 A JP S6285790A
Authority
JP
Japan
Prior art keywords
paint
undercoat
cargo oil
coating film
inorganic zinc
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
JP60223732A
Other languages
Japanese (ja)
Inventor
Yoshiaki Haritani
播谷 圭亮
Tominosuke Ishida
石田 富之輔
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.)
IHI Corp
Nippon Paint Co Ltd
Original Assignee
IHI Corp
Nippon Paint Co 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 IHI Corp, Nippon Paint Co Ltd filed Critical IHI Corp
Priority to JP60223732A priority Critical patent/JPS6285790A/en
Publication of JPS6285790A publication Critical patent/JPS6285790A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a cargo oil tank steel material from corroding and improve the heat resisting, shock resisting, acid resisting, alkali resisting properties or the like of paint film by laying the undercoat of organic solvent type of inorganic zinc powder paint and final coating having specified volume concentration of pigment thereon on the inner surface of the cargo oil tank made of steel material. CONSTITUTION:Organic solvent type of inorganic zinc powder paint is applied as undercoat ad 38-58% volume concentration pigment paint is applied as final coating. Thus, a steel material (partition wall 3, reinforcing member 4 and hull shell 1) constituting cargo oil tanks 5, 6 is prevented from corrosion by the undercoat paint film 7. Further, the heat and shock resisting properties are improved. Also, cargo oil is insulated from the undercoat paint film 7 by the final coating film 8 to reinforce chemically the undercoat paint film 7 and steel material which are weak inn acid and alkali.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、石油精製品等の運搬船に関するもので、詳し
くは、アルコール類や糖蜜、ケロシン、ジェット燃料等
の種々の貨物を運搬するだめのタンクを有するプロダク
トキャリヤなどに関するものである。
[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a carrier for carrying refined petroleum products, etc., and more specifically, a vessel for transporting various cargoes such as alcohol, molasses, kerosene, jet fuel, etc. This relates to product carriers, etc.

従来の技術 石油精製品等の運搬船とは、メタノール、エタノール、
ブタノール、エチレングリコール等の多価アルコールを
含むアルコール類、メチルイソブチルケトン(以下Mよ
りK )等のケトン類、酢酸エチル等のエステル類、糖
蜜、大豆油等の植物油類、魚油等の動物油類、キシレン
、ケロシン、灯油、ジェット燃料等の炭化水素類等を運
搬するタンクを有する運搬船である。
Conventional technology Ships carrying refined petroleum products, etc., carry methanol, ethanol,
Alcohols including polyhydric alcohols such as butanol and ethylene glycol, ketones such as methyl isobutyl ketone (hereinafter M to K), esters such as ethyl acetate, molasses, vegetable oils such as soybean oil, animal oils such as fish oil, This is a carrier ship with tanks for transporting hydrocarbons such as xylene, kerosene, kerosene, and jet fuel.

従来、この種の運搬船における貨物油槽の内面は無機質
亜鉛末塗料を単独塗膜として塗装する方法、あるいはエ
ポキシ樹脂塗料等を単独塗膜として塗装する方法等が知
られていた。
Conventionally, it has been known to coat the inner surface of the cargo oil tank in this type of transport ship with an inorganic zinc powder paint as a single coating, or with an epoxy resin paint or the like as a single coating.

発明が解決しようとする問題点 無機質亜鉛末塗料の単独塗膜による貨物油槽の内面保護
は防食性が優れているものの、耐酸性、耐アルカリ性に
劣り、また貨物油槽に、たとえば重油あるいはディーゼ
ル油等を燃焼させた場合に発生する排気ガス等を非爆発
性のイナートガスとして導入すると塗膜の劣化が早く、
また塗膜中の金属亜鉛の溶出によって貨物油を汚染させ
るなどの欠陥がある。
Problems to be Solved by the Invention Although the internal surface protection of cargo oil tanks with a single coat of inorganic zinc powder paint has excellent corrosion resistance, it has poor acid and alkali resistance. If the exhaust gas generated when burning is introduced as a non-explosive inert gas, the paint film will deteriorate quickly.
In addition, there are defects such as the contamination of cargo oil due to the elution of metallic zinc in the coating film.

さらに作業上の問題点として、工場で塗装した場合は機
械損傷を受は易いので、でき上がった貨物油槽に塗装す
ることが不可欠であった。
Another problem with the work was that if painted at the factory, it would be susceptible to mechanical damage, so it was essential to paint the completed cargo oil tanks.

この結果、必然的に組立て後に船内で被塗物をサンドブ
ラスト処理することが必要であった。
As a result, it was necessary to sandblast the object to be coated onboard the ship after assembly.

一方、上塗り塗料であるエポキシ樹脂塗料等の場合は耐
酸性、耐アルカリ性に優れる反面、耐熱性、耐衝撃性、
防錆性が、また貨物を積載運搬後の塗膜が二次密着性に
劣る等の問題点があるうえに、補修」二の制約から運搬
船内塗装が必須とされている。この船内塗装には密着性
を確保するためにブラスト処理が不可欠である。
On the other hand, epoxy resin paints, which are top coats, have excellent acid resistance and alkali resistance, but they also have poor heat resistance, impact resistance,
In addition to problems such as poor rust prevention and poor secondary adhesion of the coating film after cargo is loaded and transported, it is now mandatory to paint the inside of the transport vessel due to restrictions on repair. Blasting is essential for this interior painting to ensure adhesion.

さらに、エポキシ樹脂塗料等を積層して厚膜とした場合
、メタノール等の浸透性の強い貨物によってブリスター
を発生する。
Furthermore, when epoxy resin paint or the like is laminated to form a thick film, blistering occurs due to highly permeable cargo such as methanol.

しかも、エポキシ樹脂塗料等だけによる従来の方式では
、その塗装作業は、貨物油槽内部の工事の完了後、すな
わち、本船の建造工事が殆んど終了した時点で、貨物油
槽内全面に堅ろうな架設足場を設けて、貨物油槽内で被
塗面全面についてプラストクリーニングを行なったのち
、被塗面を清掃し、その後、所定のエポキシ樹脂塗料等
を塗装(通常は5回塗り)するという諸作業が必要であ
る。このため、まず、貨物油槽内でのプラストクリーニ
ングには、多大のコストがかかり、また相当の工期が必
要であり、さらに、プラストクリーニングののち、塗装
までの間、処理面の状態を維持するだめの空気調節装置
などが必要であり、とくに、エポキシ樹脂塗料等の塗装
には1か月以内に及ぶ塗装インターバル、膜厚を確保す
るための塗装回数、貨物油槽内が結露するのを防ぐため
の温度、湿度調節および塗料の溶剤を排気するための換
気等の種々の制約があり、その塗装には塗膜の乾燥はも
ちろんとして作業者の安全確保等に細心の注意が必要で
ある。
Moreover, with the conventional method of using only epoxy resin paint, the painting work is carried out after the construction inside the cargo oil tank is completed, that is, when the ship's construction work is almost completed, a sturdy construction is applied to the entire surface of the cargo oil tank. After setting up a scaffold and performing plastic cleaning on the entire surface to be coated inside the cargo oil tank, the surface to be coated is cleaned, and then the specified epoxy resin paint is applied (usually five coats). is necessary. For this reason, first of all, Plast cleaning inside cargo oil tanks requires a large amount of cost and a considerable amount of time, and furthermore, it is difficult to maintain the condition of the treated surface after Plast cleaning until painting. In particular, when painting with epoxy resin paint, etc., the painting interval is within one month, the number of times of painting to ensure the film thickness, and the number of times of painting to prevent condensation inside the cargo oil tank. There are various restrictions such as temperature and humidity control and ventilation to exhaust paint solvents, and painting requires careful attention not only to drying the paint film but also to ensuring the safety of workers.

このように、従来の塗装仕様で6回塗装する場合には多
くのコストと工期が必要とされていた。
As described above, applying six coats of conventional coating specifications requires a large amount of cost and construction time.

本発明はこのような問題点を解決しようとするものであ
り、貨物油槽鋼材の腐蝕防止、塗膜の耐熱性、耐衝撃性
、二次密着性を含む密着性、耐酸性、耐アルカリ性、メ
タノールを含む耐貨物油性および貨物油の汚染防止等の
性能を持ち、さらに工期およびコストの低減を図ること
のできる石油精製品等の運搬船を提供することを目的と
するものである。
The present invention aims to solve these problems, and improves the corrosion prevention of cargo oil tank steel materials, the heat resistance, impact resistance, and adhesion including secondary adhesion of the coating film, acid resistance, alkali resistance, and methanol resistance. The purpose of the present invention is to provide a ship for transporting refined petroleum products, etc., which has performance such as cargo oil resistance including cargo oil and prevention of cargo oil contamination, and which can further reduce construction period and cost.

問題点を解決するだめの手段 本発明は鋼材製からなる貨物油槽の内面に、有機溶剤型
の無機質亜鉛末塗料を下塗りし、この無機質亜鉛末塗料
の塗膜の上に顔料容積濃度が38〜58係の塗料を上塗
りし、とくに上塗り塗膜となるエポキシ樹脂塗料、ポリ
ウレタン#I脂塗料またはフェノールエボキン樹脂塗料
の顔料容積濃度が58〜58%であることを特徴として
いる。
Means to Solve the Problems The present invention is to apply an organic solvent-based inorganic zinc dust paint to the inner surface of a cargo oil tank made of steel, and to coat the coating film of the inorganic zinc dust paint with a pigment volume concentration of 38 to 38. It is characterized in that the pigment volume concentration of the epoxy resin paint, polyurethane #I resin paint, or phenol evoquine resin paint that forms the top coat is 58 to 58%.

作    用 有機溶剤型の無機質亜鉛末塗料を下塗りとし、顔料容積
濃度が38〜58%の塗料を上塗りとしているため、そ
の下塗り塗膜によって、貨物油槽を構成している鋼材の
防錆がなされ、かつ、耐熱性および耐衝撃性が増加する
。またその上塗り塗膜によって、貨物油と下塗り塗膜と
が遮断され、酸およびアルカリに弱い下塗り塗膜および
鋼材が化学的に補強される。
Function: An organic solvent type inorganic zinc powder paint is used as the undercoat, and a paint with a pigment volume concentration of 38 to 58% is used as the topcoat, so the undercoat film protects the steel materials that make up the cargo oil tank. Moreover, heat resistance and impact resistance are increased. The top coat also blocks cargo oil from the base coat, and chemically reinforces the base coat and steel materials, which are sensitive to acids and alkalis.

実施例 本発明で使用する有機溶剤型の無機質亜鉛末塗料として
は70〜95%の金属亜鉛粉末を含み、シリケートをビ
ヒクルとする塗料が用いられる。
Examples The organic solvent type inorganic zinc powder paint used in the present invention is a paint containing 70 to 95% metallic zinc powder and using a silicate as a vehicle.

とくに好ましいのはアルキルシリケートをビヒクルとす
る有機溶剤型の無機質亜鉛末塗料である。
Particularly preferred is an organic solvent type inorganic zinc powder paint containing an alkyl silicate as a vehicle.

乾燥塗膜中にカリウム、ナトリウム、リチュム、等の水
可溶性成分を含むアルカリンリケードをビヒクルとする
無機質亜鉛末塗料は水分を吸収しやすく、密着性が低下
するので好ましくない。
An inorganic zinc powder paint whose vehicle is an alkaline liquor containing water-soluble components such as potassium, sodium, lithium, etc. in the dry coating film is undesirable because it easily absorbs water and reduces adhesion.

この有機溶剤型の無機質亜鉛末塗料は顔料として配合さ
れた金属亜鉛が電気化学的作用をして優れた防食性を発
揮するばかりでなく、耐熱性、耐衝撃性にも優れている
This organic solvent type inorganic zinc powder paint not only exhibits excellent corrosion resistance due to the electrochemical action of metallic zinc blended as a pigment, but also has excellent heat resistance and impact resistance.

また、有機溶剤型の無機質亜鉛末塗料の塗膜は比較的粗
な構造である点に特徴があり、塗膜の空隙率は10〜3
0%程度と推定される。
In addition, the coating film of organic solvent-based inorganic zinc dust paint is characterized by a relatively rough structure, and the porosity of the coating film is 10 to 3.
It is estimated to be around 0%.

顔料容積濃度が38〜58%の上塗塗料としてはアミン
、アミンアダクト、またはポリアミドを硬化剤とするエ
ポキシ樹脂塗料、ポリウレタン樹脂塗料、フェノールエ
ポキシ樹脂塗料が用いられる。
Epoxy resin paints, polyurethane resin paints, and phenol epoxy resin paints using amines, amine adducts, or polyamides as curing agents are used as top coats having a pigment volume concentration of 38 to 58%.

これらの塗膜は水道水、溶剤、酸およびアルカリ性物質
等の耐薬品性や可撓性、洗浄性に優れ、またその塗膜は
無機質亜鉛末塗料に比べて緻密で、さらに積載する貨物
に対して溶解する成分を侍たない。
These coatings have excellent chemical resistance against tap water, solvents, acids, and alkaline substances, as well as flexibility and washability.The coatings are denser than inorganic zinc powder coatings, and are more effective against the cargo being loaded. Avoid handling components that dissolve in water.

本発明は最初に貨物油槽の内面に有機溶剤型の無機質亜
鉛末塗料による比較的粗な塗膜を作り、次いで顔料容積
濃度が38〜58%のエポキシ樹脂塗料、ポリウレタン
樹脂塗料、フェノールエポキシ樹脂塗料の一種を上塗り
する。
The present invention first creates a relatively rough coating film using an organic solvent-based inorganic zinc powder paint on the inner surface of a cargo oil tank, and then applies epoxy resin paint, polyurethane resin paint, and phenol epoxy resin paint with a pigment volume concentration of 38 to 58%. Topcoat with a type of

顔料容積濃度を68〜58係とする理由は積載製品(貨
物)の浸透圧を緩和させることにある。顔料容積濃度が
38係未満であると塗膜が緻密になりすぎるので浸透圧
が高まりブリスターが発生しやすく、また顔料容積濃度
が58%を越えると均一な塗膜が得られず、塗膜強度も
低下するので好ましくない。
The reason for setting the pigment volume concentration to be between 68 and 58 is to alleviate the osmotic pressure of the loaded product (cargo). If the pigment volume concentration is less than 38%, the coating film will become too dense and the osmotic pressure will increase, causing blisters to occur.If the pigment volume concentration exceeds 58%, a uniform coating film will not be obtained and the coating film strength will decrease. This is not preferable as it also lowers the amount of water.

以上の構成からなる下塗りと上塗り塗料を積層すること
により、有機溶剤型の無機質亜鉛末塗料は貨物およびイ
ナートガスとの接触が遮断される。
By laminating the undercoat and topcoat having the above structure, the organic solvent-based inorganic zinc powder paint is prevented from coming into contact with cargo and inert gas.

一方、上塗り塗膜は防食性、密着性を下塗り塗膜により
補強される。
On the other hand, the corrosion resistance and adhesion of the topcoat film are reinforced by the undercoat film.

この結果、本発明の構成による積層塗膜は浸透性の強い
メタノール等の貨物に対してもブリスターの発生を防止
することが可能となる。
As a result, the laminated coating film having the structure of the present invention can prevent blistering even for highly permeable cargo such as methanol.

本発明の構成による積層塗膜がブリスターの発生を防止
する作用は明確ではないが、空隙を持つ粗な塗膜構造の
有機溶剤型の無機質亜鉛末塗料の塗膜と顔料容積濃度の
高い上塗り塗膜の組合せが寄与しているものと推測され
る。
Although it is not clear how the laminated coating film according to the present invention prevents blistering, it is important to note that a coating film of an organic solvent-based inorganic zinc powder paint with a rough coating structure with voids and a topcoat coating with a high pigment volume concentration It is presumed that the combination of membranes contributes.

また無機質亜鉛末塗料を下塗り塗膜とするため、第1層
塗装前の鋼材面の下地処理を船体ブロックの段階でプラ
ストクリーニングができるので、塗装置手業が容易とな
るとともに、エポキシ樹脂塗料の上塗り塗装を従来の3
回塗りから1回塗りに減らすことができる。
In addition, since the inorganic zinc powder paint is used as the undercoat film, the steel surface can be pre-cleaned at the hull block stage before the first layer is painted. The top coat is the conventional 3
You can reduce the number of coats from two coats to one coat.

塗料製造例 第   1   表 クレー     ・ 26.320,4 14.0  
9.2米I  N、 L、 CT(EM、社製 沈澱防
止剤米2 油化シェルエポキシ社製 エポキシ樹脂米5
 玉料化学社製 変性ポリアミドアミンアダクト第1実
施例 下塗り ニツペジンキ−1000SPC(日本ペイント
社製有機溶剤型無機質亜鉛末塗料) 上塗り 塗料製造例A 第2実施例 下塗り ニツペジンキ−1000SPC上塗り 塗料製
造例B 第6実施例 下塗り ニツペジンキ−1000SPC上塗り 塗料製
造例C 第4実施例 下塗り ニツペジンキ−1000SPC上塗り インタ
ータン 日本ペイント社製ポリウレタン樹脂塗料(顔料容積!l
l140%) 第5実施例− 下塗り ニツペジンキ−1000SPC上塗り インタ
ーライン 日本ペイント社製フェノールエポキシ樹脂塗料(顔料容
積a度 52チ) 比較例 1 下塗り ニツベジ/キー1000SPC上塗り 塗
料製造例D 2 下塗り ニツベジンキー1000SPC膜厚 75
μ 31回塗り ニツペエボキシPC 2回塗り ニツペエポキシPC 6回塗り ニツベエポキシPC 塗装間隔 各24時間 合計膜厚 250μ 日本ペイント社製エポキシ樹脂 塗料(顔料容積濃度 48チ) 試験条件 (1)水道水、メタノール、MよりK、キジロールの浸
漬試験は浸漬液をいれた容器中に試験片を40℃、3か
月間浸漬し、J工S−54006,1による塗膜の外観
、およびl5O4624による密着性を測定した。
Paint manufacturing example Table 1 Clay 26.320,4 14.0
9.2 Rice I N, L, CT (EM, manufactured by Co., Ltd.) Precipitation agent rice 2 Epoxy resin rice (manufactured by Yuka Shell Epoxy Co., Ltd.) 5
Modified polyamide amine adduct manufactured by Tamayo Kagaku Co., Ltd. 1st example Undercoat Nitsupezinki-1000SPC (organic solvent type inorganic zinc powder paint manufactured by Nippon Paint Co., Ltd.) Topcoat Paint production example A 2nd example Undercoat Nitsupezinki-1000SPC topcoat Paint production example B No. 6 Example undercoat Nitsupezinki-1000SPC topcoat Paint production example C 4th example undercoat Nitsupezinki-1000SPC topcoat Intertan Nippon Paint Co., Ltd. polyurethane resin paint (pigment volume: l)
140%) 5th Example - Undercoat Nitsubezinki-1000SPC Topcoat Interline Nippon Paint Co., Ltd. phenol epoxy resin paint (pigment volume a degree 52 inches) Comparative Example 1 Undercoat Nitsubeji/Key 1000SPC Topcoat Paint Production Example D 2 Undercoat Nitsubezinki 1000SPC Film thickness 75
μ 31 coats Nitsube Epoxy PC 2 coats Nitspe Epoxy PC 6 coats Nitsube Epoxy PC Coating interval 24 hours each Total film thickness 250 μ Nippon Paint Co., Ltd. epoxy resin paint (pigment volume concentration 48 inches) Test conditions (1) Tap water, methanol, M In the immersion test of Kijiroru, the test piece was immersed in a container containing an immersion liquid at 40°C for 3 months, and the appearance of the coating film with J-Ko S-54006,1 and the adhesion with 15O4624 were measured.

(2)イナートガス試験は次ぎの組成からなるガスの雰
囲気に3か月間暴露した。
(2) In the inert gas test, samples were exposed to a gas atmosphere having the following composition for 3 months.

SO2ガス 300±30 PPM 02         3±0,3 Co2       j3±1 N2     バランス (3)温度勾配試験は試験片を隔壁として左右のセルの
片方に60℃の水、他方には20℃の水を常時供給しな
がら、96時間保ち、試験片の裏、表(塗膜表面と被塗
物鋼板)との間に温度差を生じさせることにより、高温
側から低温側に水の浸透を高めブリスターの発生を促進
する試験。塗膜は高温側(4)溶出亜鉛濃度(PPM 
)試験は50x100X 3.2 mmの試験板に各実
施例、及び各比較例の塗装仕様によって塗装した後裔溶
液に浸漬し、浸漬溶液をJ工S−に−010253,2
(原子吸光法)により測定した。
SO2 gas 300±30 PPM 02 3±0,3 Co2 j3±1 N2 Balance (3) Temperature gradient test uses the test piece as a partition wall and constantly supplies 60℃ water to one side of the left and right cells and 20℃ water to the other. By keeping the specimen for 96 hours while supplying water to create a temperature difference between the back and front of the test piece (the surface of the coating film and the steel plate to be coated), water penetrates from the high-temperature side to the low-temperature side and causes blisters. Exams that facilitate. The coating film is on the high temperature side (4) Elution zinc concentration (PPM
) The test was performed by immersing a 50 x 100 x 3.2 mm test plate in the solution after painting according to the coating specifications of each example and each comparative example, and applying the dipping solution to J-Ko S-010253,2.
(Atomic absorption spectrometry).

(5)試験片の作成条件 板の大きさ 70x150x3.2mm(6〕膜厚下塗
/上塗り 75μ/100μ(7)乾燥条件 下塗り 
室@2日間 上塗り  17日間 試験結果(1) 第2表の1 第2表の2・ 第2表の1および第2表の2において、Q印は異常なし
、米1はJIS−に−1501、*2は三井石油化学社
製、米3はJIS−に−2432である。
(5) Test piece preparation conditions Board size 70x150x3.2mm (6) Film thickness Undercoat/topcoat 75μ/100μ (7) Drying conditions Undercoat
Chamber @ 2 days topcoating 17 days test results (1) Table 2 1 Table 2 2 In Table 2 1 and Table 2 2, Q mark indicates no abnormality, rice 1 is JIS-1501 , *2 is manufactured by Mitsui Petrochemical Co., Ltd., and US3 is JIS-2432.

試、験結果(2) 第   6   表 第3表において、*−4はJIS−に−8105(1級
)、米5はインドネシア産、来6はJIS−に−022
0(1号)である。
Test, Test Results (2) Table 6 In Table 3, *-4 is JIS-8105 (grade 1), rice 5 is from Indonesia, and rice 6 is JIS-022.
0 (No. 1).

第6実施例 図面は本発明の第6実施例を示している。第1図におい
て、1は船体外板、2は船体中心線、6は隔壁、4は補
強骨部材、5は中央貨物油槽、6は側部貨物油槽である
。また第2図および第3図において、7は下塗りされた
無機質亜鉛末塗料(日本ペイント社製、ニツペジンキ−
70008Pc)の塗膜、8は上塗りされたエポキシ樹
脂塗料(日本ペイント社製、ニツペエポキシpc)の塗
膜である。なお前記船体外板1、隔壁5、補強骨部材4
は、ともに鋼材からなっている。すなわち、鋼材で構成
された中央貨物油槽5および側部貨物油槽6の内面に、
下塗りされた無機質亜鉛末塗料の塗膜7と、この塗膜7
に上塗りされたエポキシ樹脂塗料の塗膜8とを有してい
る。
Sixth Embodiment The drawings show a sixth embodiment of the present invention. In FIG. 1, 1 is a hull outer plate, 2 is a hull centerline, 6 is a bulkhead, 4 is a reinforcing bone member, 5 is a central cargo oil tank, and 6 is a side cargo oil tank. In Figures 2 and 3, 7 is an undercoated inorganic zinc powder paint (manufactured by Nippon Paint Co., Ltd., Nippezinki).
70008Pc), and 8 is a coating film of an overcoated epoxy resin paint (manufactured by Nippon Paint Co., Ltd., Nippe Epoxy PC). Note that the hull outer plate 1, bulkhead 5, reinforcing bone member 4
Both are made of steel. That is, on the inner surfaces of the central cargo tank 5 and the side cargo tank 6, which are made of steel,
Coating film 7 of the undercoated inorganic zinc powder paint and this coating film 7
It has a coating film 8 of an epoxy resin paint overcoated.

前記無機質亜鉛末塗料の塗膜7とエポキシ樹脂塗料の塗
膜8の塗装作業は、次のようにして行なわれる。すなわ
ち、船体ブロックの段階で、工場でプラストクリーニン
グし、さらて、下塗り塗膜7として無機質亜鉛末塗料を
、その工場で1回塗り(乾燥塗膜厚さ75〜100μ)
したのち、その船体ブロックを船台上に移行し、各船体
ブロックの継手部は、その船台上において船内でプラス
トクリーニングしてから、無機質亜鉛末塗料によりタッ
チアップする。この状態、つまり、貨物油槽内全面が無
機質亜鉛末塗料1回塗りの状態で、貨物油槽内工事完了
後、無機質亜鉛末塗料塗膜の損傷部の補修処理をし、こ
ののち、エポキシ樹脂塗料を1回の上塗り塗装(乾燥塗
膜厚さ100〜175μ)する。
The coating operation of the coating film 7 of the inorganic zinc powder paint and the coating film 8 of the epoxy resin paint is performed as follows. That is, at the stage of the hull block, it is plasto cleaned at the factory, and then an inorganic zinc powder paint is applied once at the factory as the undercoat 7 (dry coating thickness 75 to 100μ).
Thereafter, the hull blocks are moved onto the ship's deck, and the joints of each hull block are cleaned with plastic on the ship's deck, and then touched up with an inorganic zinc powder paint. In this state, in other words, the entire interior of the cargo oil tank is coated with one coat of inorganic zinc dust paint.After the interior work of the cargo oil tank is completed, the damaged parts of the inorganic zinc dust paint film are repaired, and then epoxy resin paint is applied. Apply one topcoat (dry coating thickness 100-175μ).

このように、下塗り塗膜7として無機質亜鉛末塗料を採
用することにより、エポキシ樹脂塗料のみによる従来の
問題点である貨物油槽内での全内面に対するプラストク
リーニングをなくすることができ、また無機質亜鉛末塗
料の塗膜7のみでは、酸やアルカリに弱いが、この塗膜
7にエポキシ樹脂塗料を1回塗りしてエポキシ樹脂塗料
の塗膜8を形成させたことにより、該塗膜70弱い性質
が巧みに補強される。なおエポキシ樹脂塗料の塗膜8の
耐熱性は180℃以上(ドライ加熱)で樹脂の分解が起
り、塗膜8が破壊する傾向を呈するが、下塗り塗膜7を
有するので、350〜400℃でも、該塗膜7が防錆性
能を発揮する。
In this way, by adopting the inorganic zinc dust paint as the undercoat film 7, it is possible to eliminate the need for plastic cleaning of the entire inner surface inside the cargo oil tank, which is a problem with the conventional method using only epoxy resin paint. The coating film 7 made of powdered paint alone is susceptible to acids and alkalis, but by applying one coat of epoxy resin paint to this coating film 7 to form a coating film 8 of epoxy resin paint, the weak properties of the coating film 70 can be improved. is skillfully reinforced. Regarding the heat resistance of the coating film 8 of the epoxy resin paint, the resin decomposes at temperatures above 180°C (dry heating) and the coating film 8 tends to be destroyed, but since it has the undercoat film 7, it is resistant even at 350 to 400°C. , the coating film 7 exhibits antirust performance.

発明の効果 本発明は貨物油槽の内面に、有機溶剤型の無機質亜鉛末
塗料を下塗りとして、該塗膜の上に顔料容積濃度が38
〜58チの塗料を上塗りす4゜ることにより、以下の効
果が達成された。
Effects of the Invention The present invention uses an organic solvent type inorganic zinc powder paint as an undercoat on the inner surface of a cargo oil tank, and coats the paint film with a pigment volume concentration of 38.
The following effects were achieved by applying 4° of ~58 inches of paint.

まず、下塗り塗膜によって、鋼材の防食性、耐熱性、衝
撃性が、つぎに、上塗り塗膜によって、酸、アルカリ等
の耐薬品性、および亜鉛の溶出による貨物油の汚損が防
止され、かつ、洗浄作業性が向上する。さらに下塗り塗
料である無機質亜鉛末塗料塗膜の空隙効果と貨物油の浸
透圧を緩和するに適した顔料容積濃度の上塗り塗料の組
合せによって耐ブリスター性が向上し、この結果浸透性
の強いメタノール等の貨物油の運搬が可能となった。
Firstly, the undercoat film improves the corrosion resistance, heat resistance, and impact resistance of the steel, and the topcoat film improves the corrosion resistance, heat resistance, and impact resistance of the steel, and the topcoat film improves chemical resistance such as acids and alkalis, and prevents contamination of cargo oil due to zinc elution. , cleaning workability is improved. Furthermore, the blister resistance is improved by the combination of the void effect of the inorganic zinc dust paint film used as the undercoat and the topcoat with a pigment volume concentration suitable for alleviating the osmotic pressure of cargo oil, resulting in highly permeable methanol etc. It became possible to transport cargo oil.

一方、塗膜を形成せしめる際には貨物油槽内でのプラス
トクリーニングをほとんど省略することができるうえに
、塗膜が薄くても期待性能を発揮するので、塗装回数の
減少に伴ない、工程短縮が大幅に可能となり、さらには
上塗り塗膜が損傷しても容易に補修できる等の種々の従
来欠陥を解消することに成功した産業り有用な効果を有
する発明である。
On the other hand, when forming a coating film, most of the plastic cleaning inside the cargo oil tank can be omitted, and even if the coating film is thin, it still exhibits the expected performance, so the process can be shortened by reducing the number of coatings. This invention has industrially useful effects that have succeeded in overcoming various conventional defects, such as making it possible to significantly improve the process, and even if the top coat is damaged, it can be easily repaired.

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

図面は本発明の第6実施例を示したもので、第1図は一
部切欠断面正面図、第2図は第1図のAの部分の拡大断
面図、第5図は同じくBの部分の拡大断面図である。 1・・・船体外板、2・・・船体中心線、5・・・隔壁
、4・・・補強骨部材、5・・・中央貨物油槽、6・・
・側部貨物油槽、7・・・無機質亜鉛末塗料の塗膜、8
・・・エポキシ樹脂塗料の塗膜。
The drawings show a sixth embodiment of the present invention; FIG. 1 is a partially cutaway front view, FIG. 2 is an enlarged sectional view of portion A in FIG. 1, and FIG. 5 is a portion B of FIG. FIG. DESCRIPTION OF SYMBOLS 1... Hull outer plate, 2... Hull center line, 5... Bulkhead, 4... Reinforcement bone member, 5... Central cargo oil tank, 6...
・Side cargo oil tank, 7... Coating film of inorganic zinc powder paint, 8
...Epoxy resin paint film.

Claims (1)

【特許請求の範囲】 1、鋼材製からなる貨物油槽の内面に、下塗り塗装され
た有機溶剤型の無機質亜鉛末塗 料の塗膜を有し、かつ、この無機質亜鉛末塗料の塗膜の
上に、顔料容積濃度が38〜58%の塗料を上塗り塗装
した塗膜を有することを特徴とする、石油精製品等の運
搬船。 2、顔料容積濃度38〜58%の塗料がエポキシ樹脂塗
料、ポリウレタン樹脂塗料またはフェノールエポキシ樹
脂塗料から選ばれた一種からなる、特許請求の範囲第1
項記載の運搬船。 3、有機溶剤型の無機質亜鉛末塗料がアルキルシリケー
トをビヒクルとする塗料からなる、特許請求の範囲第1
項記載の運搬船。
[Scope of Claims] 1. A cargo oil tank made of steel has a coating film of an organic solvent-based inorganic zinc dust paint coated with an undercoat on the inner surface thereof, and on top of the coating film of the inorganic zinc dust paint. A ship for transporting refined petroleum products, etc., characterized by having a coating film coated with a paint having a pigment volume concentration of 38 to 58%. 2. Claim 1, wherein the paint having a pigment volume concentration of 38 to 58% is made of one selected from epoxy resin paint, polyurethane resin paint, or phenol epoxy resin paint.
Transport vessel mentioned in section. 3. Claim 1, wherein the organic solvent-based inorganic zinc dust paint is a paint containing an alkyl silicate as a vehicle.
Transport vessel mentioned in section.
JP60223732A 1985-10-09 1985-10-09 Transport ship for purified petroleum product Pending JPS6285790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60223732A JPS6285790A (en) 1985-10-09 1985-10-09 Transport ship for purified petroleum product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60223732A JPS6285790A (en) 1985-10-09 1985-10-09 Transport ship for purified petroleum product

Publications (1)

Publication Number Publication Date
JPS6285790A true JPS6285790A (en) 1987-04-20

Family

ID=16802821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60223732A Pending JPS6285790A (en) 1985-10-09 1985-10-09 Transport ship for purified petroleum product

Country Status (1)

Country Link
JP (1) JPS6285790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101303870B1 (en) * 2011-10-19 2013-09-04 현대중공업 주식회사 PFP execution method for grating facilities of offshore platform
JP2017226819A (en) * 2016-06-20 2017-12-28 出光興産株式会社 Purification method of jet fuel transportation product and manufacturing method of jet fuel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101303870B1 (en) * 2011-10-19 2013-09-04 현대중공업 주식회사 PFP execution method for grating facilities of offshore platform
JP2017226819A (en) * 2016-06-20 2017-12-28 出光興産株式会社 Purification method of jet fuel transportation product and manufacturing method of jet fuel

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