JPS6447842A - Production of hot-dipped galvanized steel tube - Google Patents
Production of hot-dipped galvanized steel tubeInfo
- Publication number
- JPS6447842A JPS6447842A JP20486587A JP20486587A JPS6447842A JP S6447842 A JPS6447842 A JP S6447842A JP 20486587 A JP20486587 A JP 20486587A JP 20486587 A JP20486587 A JP 20486587A JP S6447842 A JPS6447842 A JP S6447842A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- subjected
- hot
- steel tube
- treatment
- 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
Landscapes
- Coating With Molten Metal (AREA)
Abstract
PURPOSE:To reduce the thickness of a galvanized layer and to provide the titled steel tube with excellent bending resistance without impairing the corrosion resistance by subjecting the starting tube to a blasting treatment into the specific surface roughness and thereafter subjecting it to a pickling treatment and hot-dipping galvanizing. CONSTITUTION:The starting tube is subjected to a shot blasting treatment into 20-80mum surface rughness, is degreased at need and is subjected to a pickling treatment for about 10-30min. Said tube is successively subjected to a flux treatment by the double salt of ZnCl2 and NH4Cl2, etc. The tube is thereafter subjected to ordinary hot-dipping galvanizing. By this method, the titled steel tube having sufficient corrosion resistance and showing excellent bending resistance can be obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20486587A JPS6447842A (en) | 1987-08-18 | 1987-08-18 | Production of hot-dipped galvanized steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20486587A JPS6447842A (en) | 1987-08-18 | 1987-08-18 | Production of hot-dipped galvanized steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447842A true JPS6447842A (en) | 1989-02-22 |
Family
ID=16497680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20486587A Pending JPS6447842A (en) | 1987-08-18 | 1987-08-18 | Production of hot-dipped galvanized steel tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447842A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU670318B2 (en) * | 1992-09-25 | 1996-07-11 | Tubemakers Of Australia Limited | Method of manufacturing galvanised open or closed steel sections |
| NL1020689C2 (en) * | 2002-01-16 | 2003-07-17 | Paulus Theodorus Heesakkers | Thermally galvanizing of objects, i.e. metal objects, by pretreating object, including blasting with grains to remove at least surface layer from object |
| WO2003060177A1 (en) * | 2002-01-16 | 2003-07-24 | Bogers, Mathijs, Johannes, Anna, Engelina | Method and device for galvanizing objects |
| JP2006222023A (en) * | 2005-02-14 | 2006-08-24 | Ngk Spark Plug Co Ltd | Method for manufacturing spark plug |
| US7261922B2 (en) * | 2004-07-23 | 2007-08-28 | Valmont Industries, Inc. | Method of applying additional corrosion protection to a localized portion of a galvanized pole |
-
1987
- 1987-08-18 JP JP20486587A patent/JPS6447842A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU670318B2 (en) * | 1992-09-25 | 1996-07-11 | Tubemakers Of Australia Limited | Method of manufacturing galvanised open or closed steel sections |
| NL1020689C2 (en) * | 2002-01-16 | 2003-07-17 | Paulus Theodorus Heesakkers | Thermally galvanizing of objects, i.e. metal objects, by pretreating object, including blasting with grains to remove at least surface layer from object |
| WO2003060177A1 (en) * | 2002-01-16 | 2003-07-24 | Bogers, Mathijs, Johannes, Anna, Engelina | Method and device for galvanizing objects |
| US7367105B2 (en) | 2002-01-16 | 2008-05-06 | Galva Solutions, B.V. | Method and device for galvanizing objects |
| US7261922B2 (en) * | 2004-07-23 | 2007-08-28 | Valmont Industries, Inc. | Method of applying additional corrosion protection to a localized portion of a galvanized pole |
| JP2006222023A (en) * | 2005-02-14 | 2006-08-24 | Ngk Spark Plug Co Ltd | Method for manufacturing spark plug |
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