INNER SURFACE CORROSION PROTECTED CAST-IRON PIPE
PROBLEM TO BE SOLVED: To provide an inner surface corrosion protected cast-iron pipe whose inner surface corrosion protection of straight-tube type cast-iron pipe is easily achieved while suppressing the increase of pH of passing water.SOLUTION: The inner surface corrosion protected cast-iron pipe i...
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Format | Patent |
Language | English Japanese |
Published |
04.06.2015
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Abstract | PROBLEM TO BE SOLVED: To provide an inner surface corrosion protected cast-iron pipe whose inner surface corrosion protection of straight-tube type cast-iron pipe is easily achieved while suppressing the increase of pH of passing water.SOLUTION: The inner surface corrosion protected cast-iron pipe is subjected to corrosion protection by coating a solventless type epoxy resin coating to the inner surface of a straight section formed between an insertion port and a socket port in a straight-tube type cast-iron pipe, to form a coat film. When a cast-iron made by centrifugal casting is used as the object cast-iron pipe, it can be suitably used since the unevenness occurring on the inner surface during centrifugal casting can be leveled out. The type of cast-iron pipe is not particularly limited to, but a general type ductile cast-iron pipe or the like can be used.
【課題】直管型の鋳鉄管の内面防食を通水のpH上昇を抑えながら簡便に行う。【解決手段】直管型の鋳鉄管における、挿し口と受口との間に形成された直部の内面に、無溶剤型エポキシ樹脂塗料を塗布して塗膜を形成させて防食加工した内面防食鋳鉄管である。対象とする鋳鉄管として遠心鋳造による鋳鉄管を用いると、遠心鋳造の際に内面に生じる凹凸を均すことができるので好適に用いることができる。鋳鉄管の種類としては特に限定されるものではなく、一般的なダクタイル鋳鉄管などを用いることができる。【選択図】なし |
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AbstractList | PROBLEM TO BE SOLVED: To provide an inner surface corrosion protected cast-iron pipe whose inner surface corrosion protection of straight-tube type cast-iron pipe is easily achieved while suppressing the increase of pH of passing water.SOLUTION: The inner surface corrosion protected cast-iron pipe is subjected to corrosion protection by coating a solventless type epoxy resin coating to the inner surface of a straight section formed between an insertion port and a socket port in a straight-tube type cast-iron pipe, to form a coat film. When a cast-iron made by centrifugal casting is used as the object cast-iron pipe, it can be suitably used since the unevenness occurring on the inner surface during centrifugal casting can be leveled out. The type of cast-iron pipe is not particularly limited to, but a general type ductile cast-iron pipe or the like can be used.
【課題】直管型の鋳鉄管の内面防食を通水のpH上昇を抑えながら簡便に行う。【解決手段】直管型の鋳鉄管における、挿し口と受口との間に形成された直部の内面に、無溶剤型エポキシ樹脂塗料を塗布して塗膜を形成させて防食加工した内面防食鋳鉄管である。対象とする鋳鉄管として遠心鋳造による鋳鉄管を用いると、遠心鋳造の際に内面に生じる凹凸を均すことができるので好適に用いることができる。鋳鉄管の種類としては特に限定されるものではなく、一般的なダクタイル鋳鉄管などを用いることができる。【選択図】なし |
Author | OTSU HIDEKI NISHIHARA YOSHIKAZU |
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DocumentTitleAlternate | 内面防食鋳鉄管 |
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RelatedCompanies | KURIMOTO LTD |
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Snippet | PROBLEM TO BE SOLVED: To provide an inner surface corrosion protected cast-iron pipe whose inner surface corrosion protection of straight-tube type cast-iron... |
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SubjectTerms | APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING |
Title | INNER SURFACE CORROSION PROTECTED CAST-IRON PIPE |
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