JPH11281603A - Method for inspecting coating exfoliation of heavy corrosion-proof coated steel product - Google Patents
Method for inspecting coating exfoliation of heavy corrosion-proof coated steel productInfo
- Publication number
- JPH11281603A JPH11281603A JP10086156A JP8615698A JPH11281603A JP H11281603 A JPH11281603 A JP H11281603A JP 10086156 A JP10086156 A JP 10086156A JP 8615698 A JP8615698 A JP 8615698A JP H11281603 A JPH11281603 A JP H11281603A
- Authority
- JP
- Japan
- Prior art keywords
- exfoliation
- heavy corrosion
- cleaned
- thermograph
- heavy
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims description 19
- 239000011248 coating agent Substances 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 11
- 238000004299 exfoliation Methods 0.000 title abstract 6
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 12
- 230000008439 repair process Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract description 3
- 206010040844 Skin exfoliation Diseases 0.000 abstract 5
- 230000001680 brushing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- 229920000098 polyolefin Polymers 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- -1 polypropylene Polymers 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000238586 Cirripedia Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Radiation Pyrometers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、海洋環境に設置さ
れている重防食被覆鋼材の重防食被覆剥離の有無を検査
する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inspecting a heavy corrosion protection coated steel material installed in a marine environment for the presence or absence of heavy corrosion protection coating peeling.
【０００２】[0002]
【従来の技術】従来、海洋環境に設置されている重防食
被覆鋼材の被覆剥離の検査は船上からの目視観察や潜水
夫によるハンマーを用いた打音調査によって行われてい
た。2. Description of the Related Art Conventionally, the inspection of peeling of a heavy corrosion-resistant coated steel material installed in a marine environment has been carried out by visual observation from a ship or by hammering of a diver using a hammer.
【０００３】[0003]
【発明が解決しようとする課題】ところが、目視観察で
は剥離がかなり進行し、大きな異常が発生してからでな
いと剥離故障を発見できない。そのため、補修が大掛か
りな作業となり、労力と費用の両方で問題であった。However, in visual observation, peeling has considerably progressed, and a peeling failure cannot be found until a large abnormality has occurred. As a result, the repair work was a large-scale operation, and both labor and cost were problems.
【０００４】また、潜水夫のハンマー打音調査は検査に
時間を要して効率が悪かった。[0004] In addition, the hammer hammering sound survey of divers takes time for inspection and is inefficient.
【０００５】本発明の目的は、海洋環境に立設されてい
る重防食被覆鋼材の重防食被覆剥離の有無を簡便に早期
発見できる方法を提供することにある。An object of the present invention is to provide a method for easily and early detecting the presence or absence of heavy corrosion protection coating peeling of heavy corrosion protection coating steel material standing upright in a marine environment.
【０００６】[0006]
【課題を解決するための手段】本発明者らは上記課題を
解決するべく鋭意検討の結果、重防食被覆に剥離を生ず
ると、該剥離部が太陽光照射による温度上昇あるいは洗
浄で濡れた重防食被覆の乾燥の過程で周囲と温度差を生
じることを見出し、これを検出することによって剥離部
を高い確率で検出しうることを見出して本発明を完成す
ることができた。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems. As a result, when the heavy corrosion protection coating was peeled off, the peeled portion was heated by sunlight or wetted by washing. The present inventors have found that a temperature difference is generated between the surroundings in the process of drying the anticorrosion coating and that the peeled portion can be detected with a high probability by detecting the temperature difference, thereby completing the present invention.
【０００７】すなわち、本発明は、海洋環境に設置され
ている重防食被覆鋼材の表面を清掃し、該清掃面を赤外
線カメラで撮影してサーモグラフを作成し、局所的に温
度の異なる部位を検出することを特徴とする、重防食被
覆鋼材の被覆剥離検査方法に関するものである。That is, according to the present invention, a surface of a heavy corrosion protection coated steel material installed in a marine environment is cleaned, and the surface to be cleaned is photographed with an infrared camera to create a thermograph. The present invention relates to a method for inspecting the peeling of a heavy corrosion-resistant coated steel material, which is characterized by detecting.
【０００８】[0008]
【発明の実施の形態】以下、本発明につき詳細に説明す
る。本発明が適用される鋼材は、構造用鋼、高張力鋼、
耐候性鋼等からなる、鋼板、Ｈ形鋼等の形鋼、鋼矢板、
鋼管矢板、鋼管杭、棒鋼等である。これらの鋼材表面に
亜鉛、クロム、アルミニウム、ニッケル、あるいは２種
以上の金属からなるメッキを施してあっても良い。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. Steel materials to which the present invention is applied include structural steel, high-tensile steel,
Steel plates, steel sheet piles, steel sheet piles, etc.
Steel pipe sheet piles, steel pipe piles, steel bars, etc. The surface of these steel materials may be plated with zinc, chromium, aluminum, nickel, or two or more metals.
【０００９】これらの鋼材は予め脱脂、酸洗、ショット
ブラスト、グリッドブラスト、サンドブラスト等の素地
調整を行ない、好ましくはエポキシ樹脂系、ウレタン樹
脂系等の有機樹脂系プライマー層を設け、その上に重防
食被覆が施される。プライマー層の膜厚は１０〜２００
μｍ程度、通常２０〜１００μｍ程度である。鋼材とプ
ライマー層の間に、クロメート皮膜等の化成処理層を設
けることもある。These steel materials are preliminarily subjected to base adjustment such as degreasing, pickling, shot blasting, grid blasting, and sand blasting, and are preferably provided with an organic resin-based primer layer such as an epoxy resin-based or urethane resin-based layer. An anticorrosion coating is applied. The thickness of the primer layer is 10 to 200
μm, usually about 20 to 100 μm. A chemical conversion layer such as a chromate film may be provided between the steel material and the primer layer.
【００１０】重防食被覆は防食層としてポリオレフィ
ン、ウレタン、ラバーライニング等が被覆されたもので
あり、接着層としてポリオレフィンの場合には変性ポリ
オレフィンが一般に用いられる。The heavy duty anticorrosion coating is coated with polyolefin, urethane, rubber lining or the like as an anticorrosion layer. In the case of polyolefin as an adhesive layer, a modified polyolefin is generally used.
【００１１】防食ポリオレフィン層のポリオレフィン樹
脂は、低密度ポリエチレン、中密度ポリエチレン、高密
度ポリエチレン、直鎖状低密度ポリエチレン、ポリプロ
ピレン等の公知のポリオレフィン、およびエチレン−プ
ロピレンランダムまたはブロック共重合体等の公知のポ
リオレフィン共重合体である。The polyolefin resin of the anticorrosion polyolefin layer may be selected from known polyolefins such as low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear low-density polyethylene, and polypropylene, and known polyolefins such as ethylene-propylene random or block copolymers. Is a polyolefin copolymer.
【００１２】防食層として用いられるウレタンエラスト
マー層はイソシアネート化合物とポリオール化合物を原
料として形成されるものである。The urethane elastomer layer used as the anticorrosion layer is formed using an isocyanate compound and a polyol compound as raw materials.
【００１３】ラバーライニング層は、ネオプレンゴム、
ブチルゴム、ニトリルゴム、クロロプレンゴム等の合成
ゴム、天然ゴム、ウレタン系樹脂からなるゴム等が用い
られる。The rubber lining layer is made of neoprene rubber,
Synthetic rubber such as butyl rubber, nitrile rubber and chloroprene rubber, natural rubber, rubber made of urethane resin, and the like are used.
【００１４】防食層には、耐候性、その他の特性を向上
させるため、カーボンブラック、酸化チタン等の各種顔
料、酸化防止剤等の各種の添加成分を添加することがあ
る。添加量としては顔料は０.１〜４０重量％、通常０.
５〜１０重量％程度であり、酸化防止剤は０．１〜３重
量％程度、通常０．５〜２重量％程度である。In order to improve weather resistance and other characteristics, various additives such as carbon black and titanium oxide, and various additives such as antioxidants may be added to the anticorrosion layer. The amount of the pigment added is 0.1 to 40% by weight, usually 0.1 to 40% by weight.
It is about 5 to 10% by weight, and the antioxidant is about 0.1 to 3% by weight, usually about 0.5 to 2% by weight.
【００１５】これらの重防食被覆の総厚は０.５〜５.０
ｍｍ程度、通常２．０〜３．０ｍｍ程度である。The total thickness of these heavy duty anticorrosion coatings is 0.5 to 5.0.
mm, usually about 2.0 to 3.0 mm.
【００１６】重防食被覆鋼材の重防食被覆面の清掃はジ
ェット水の吹付、ブラシでこする等によって行なう。フ
ジツボ等の貝類の付着の除去には適宜たがね等を使用す
る。清掃には通常水を使用するが使用しないで行なうこ
とも可能である。The surface of the heavy corrosion protection coated steel material is cleaned by spraying jet water or rubbing with a brush. Use a chisel or the like to remove the attachment of shellfish such as barnacles. Water is usually used for cleaning, but cleaning can be performed without using water.
【００１７】次に、この清掃した面を赤外線カメラで撮
影してサーモグラフを作成する。赤外線カメラは重防食
被覆鋼材上部の陸側から支持装置を利用して垂下させ、
上下左右に移動させながら撮影してもよく、あるいは船
上に設置して海側から撮影してもよい。Next, the cleaned surface is photographed with an infrared camera to create a thermograph. The infrared camera is suspended from the land side above the heavy corrosion protection coated steel using a support device,
The image may be taken while moving up, down, left and right, or may be installed on a ship and taken from the sea side.
【００１８】撮影期間は清掃した重防食被覆面が加熱さ
れあるいは冷却されているときが好ましく、具体的には
晴天の日が好ましい。撮影面を赤外線ヒーター等で加熱
してもよい。冷却されているときとは夕方のほか、清掃
した重防食被覆面が濡れていて気化熱を奪われていると
きも含まれる。一方、本発明の検査方法が適用される重
防食被覆面は水面上に露出している面であり、従って、
干潮時がよく、特に大潮の干潮時がよい。また、風が弱
く、波の穏やかなときが好ましい。尚、重防食被覆の最
も剥離しやすい部位は飛沫帯から干満帯にかけてである
ので、本発明の方法はこの最も剥離しやすい部分の検査
を行なうことができる。サーモグラフを取る前に、被覆
表面を赤外線ヒーターなどで加熱し、その後の冷却速度
が遅いところをもって被覆の浮きの可能性が高いと判断
しても良い。During the photographing period, it is preferable that the cleaned anticorrosion-coated surface is heated or cooled, and more specifically, a sunny day is preferable. The imaging surface may be heated by an infrared heater or the like. The term “cooled” includes not only the evening, but also the time when the cleaned heavy duty anticorrosion coated surface is wet and deprived of heat of vaporization. On the other hand, the heavy corrosion protection coated surface to which the inspection method of the present invention is applied is a surface exposed on the water surface,
It is good at low tide, especially at the low tide of spring tide. It is preferable that the wind is weak and the waves are gentle. Since the most easily peeled portion of the heavy corrosion protection coating is from the splash zone to the tidal zone, the method of the present invention can inspect the most easily peeled portion. Before taking the thermograph, the surface of the coating may be heated with an infrared heater or the like, and then the location of the slow cooling rate may be judged to be high in the possibility of floating of the coating.
【００１９】太陽光が照射されるなどして加熱されてい
るときは剥離部は熱伝導率の低いエア層があるため周囲
より高温になる。また、重防食被覆縁部で剥離部に海水
が侵入しているときもやはり高温となる。一方、気化熱
などで熱が奪われているときもやはり周囲より高温とな
る。When heated due to irradiation with sunlight or the like, the peeled portion has a higher temperature than the surroundings due to the presence of an air layer having a low thermal conductivity. Also, when seawater has penetrated into the peeling portion at the heavy corrosion protection coating edge, the temperature also becomes high. On the other hand, when heat is taken away by heat of vaporization or the like, the temperature also becomes higher than the surroundings.
【００２０】こうして、剥離部は周囲と温度差のある局
所となってサーモグラフにあらわれるので、当該局所に
剥離の可能性が高いものと判断して潜水夫による詳細調
査を行ない、剥離が確認されれば補修の処置をとる。In this way, since the peeled portion appears in the thermograph as a local part having a temperature difference from the surroundings, it is determined that there is a high possibility of peeling in the local part, and a detailed investigation is performed by a diver to confirm the peeling. If it does, take repair measures.
【００２１】[0021]
【実施例】図１に示す装置を用いた。この装置は赤外線
カメラ１にサーモグラフ３を表示するデータ処理装置２
が接続されている。このデータ処理装置はサーモグラフ
の時間微分、空間微分等の画像処理が可能なものであ
る。EXAMPLE The apparatus shown in FIG. 1 was used. This device is a data processing device 2 for displaying a thermograph 3 on an infrared camera 1
Is connected. This data processing device is capable of performing image processing such as time differentiation and spatial differentiation of a thermograph.
【００２２】この装置を図１に示すようにして、打設後
１０年を経過した重防食被覆鋼矢板岸壁の被覆剥離検査
を行なった。重防食被覆は厚さ２．０ｍｍのポリエチレ
ン被覆であり、カーボンブラック２重量％と酸化防止剤
を配合したものである。検査は晴天の日の大潮の干潮時
に行なった。付着生物等をジェット水の吹付で除去して
清掃し、乾燥後船上から赤外線カメラで撮影してサーモ
グラフを得た。潜水夫による打音調査を併せて行なっ
た。得られた結果を下表に示す。Using this apparatus as shown in FIG. 1, a coating peeling test was carried out on a quay wall of a heavy-corrosion-coated steel sheet pile 10 years after its installation. The heavy-duty anticorrosion coating is a polyethylene coating having a thickness of 2.0 mm, and contains 2% by weight of carbon black and an antioxidant. The inspection was performed on a clear day at the low tide of the spring tide. The attached organisms and the like were removed by spraying with jet water and cleaned. After drying, the images were taken with an infrared camera from the ship to obtain a thermograph. A hammering survey by divers was also conducted. The results obtained are shown in the table below.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明により、簡単で効率よく被覆剥離
の検査を行うことができる。特に、軽微な剥離の段階で
剥離を検出し、速やかに補修することで補修費用の低減
を図れる。本発明の方法は海洋環境に打設されている重
防食被覆鋼材の飛沫干満帯の一般点検として最適であ
り、広範囲に非接触で剥離の有無が検知できる。According to the present invention, it is possible to easily and efficiently inspect the peeling of the coating. In particular, it is possible to reduce the repair cost by detecting the peeling at the stage of the slight peeling and performing the repair immediately. The method of the present invention is most suitable as a general inspection of a splash tide zone of a heavy corrosion protection coated steel material cast in a marine environment, and can detect the presence or absence of peeling in a wide range without contact.
【図１】 本発明の方法で被覆剥離検査を行なっている
状態を説明する図である。FIG. 1 is a diagram illustrating a state in which a coating peeling inspection is performed by a method of the present invention.
１ 赤外線カメラ ２ データ処理装置 ３ サーモグラフ DESCRIPTION OF SYMBOLS 1 Infrared camera 2 Data processing device 3 Thermograph
───────────────────────────────────────────────────── フロントページの続き (72)発明者 房前 貢 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 斎藤 義郎 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 中川 茂 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mitsugu Fuzen 1-1-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Yoshiro Saito 1-1-2 Marunouchi, Chiyoda-ku, Tokyo Inside Nippon Kokan Co., Ltd. (72) Inventor Shigeru Nakagawa 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Nippon Kokan Co., Ltd.
Claims (1)
材の表面を清掃し、該清掃面を赤外線カメラで撮影して
サーモグラフを作成し、局所的に温度の異なる部位を検
出することを特徴とする、重防食被覆鋼材の被覆剥離検
査方法1. A method for cleaning a surface of a heavy corrosion protection coated steel material installed in a marine environment, taking an image of the cleaned surface with an infrared camera, creating a thermograph, and detecting portions having locally different temperatures. Characterized by the method of inspecting the coating peeling of heavy corrosion resistant coated steel
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10086156A JPH11281603A (en) | 1998-03-31 | 1998-03-31 | Method for inspecting coating exfoliation of heavy corrosion-proof coated steel product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10086156A JPH11281603A (en) | 1998-03-31 | 1998-03-31 | Method for inspecting coating exfoliation of heavy corrosion-proof coated steel product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11281603A true JPH11281603A (en) | 1999-10-15 |
Family
ID=13878887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10086156A Pending JPH11281603A (en) | 1998-03-31 | 1998-03-31 | Method for inspecting coating exfoliation of heavy corrosion-proof coated steel product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11281603A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036811A (en) * | 2011-08-05 | 2013-02-21 | Tosoh Corp | Method of detecting peeled portion of pipe inner coating layer |
| WO2016129475A1 (en) * | 2015-02-10 | 2016-08-18 | 昭和電工株式会社 | Corrosion-prevention film, method for forming same, and corrosion-prevention coating composition for forming corrosion-prevention film |
| WO2016207315A1 (en) * | 2015-06-25 | 2016-12-29 | Thyssenkrupp Steel Europe Ag | Method for coating a surface of a metal strip and a metal strip-coating device |
| CN111999255A (en) * | 2020-08-13 | 2020-11-27 | 中冶建筑研究总院（深圳）有限公司 | Marine environment steel structure coating detection method and device, server and storage medium |
-
1998
- 1998-03-31 JP JP10086156A patent/JPH11281603A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036811A (en) * | 2011-08-05 | 2013-02-21 | Tosoh Corp | Method of detecting peeled portion of pipe inner coating layer |
| WO2016129475A1 (en) * | 2015-02-10 | 2016-08-18 | 昭和電工株式会社 | Corrosion-prevention film, method for forming same, and corrosion-prevention coating composition for forming corrosion-prevention film |
| WO2016207315A1 (en) * | 2015-06-25 | 2016-12-29 | Thyssenkrupp Steel Europe Ag | Method for coating a surface of a metal strip and a metal strip-coating device |
| CN107849698A (en) * | 2015-06-25 | 2018-03-27 | 蒂森克虏伯钢铁欧洲股份公司 | Method and metal tape plater for surfaces of metallic strip coating |
| US10739286B2 (en) | 2015-06-25 | 2020-08-11 | Thyssenkrupp Steel Europe Ag | Method for coating a surface of a metal strip and a metal strip-coating device |
| CN111999255A (en) * | 2020-08-13 | 2020-11-27 | 中冶建筑研究总院（深圳）有限公司 | Marine environment steel structure coating detection method and device, server and storage medium |
| CN111999255B (en) * | 2020-08-13 | 2024-01-19 | 中冶建筑研究总院（深圳）有限公司 | Marine environment steel structure coating detection method, device, server and storage medium |
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