CN1389588A - Hot galvanized steel pipe and its production process - Google Patents
Hot galvanized steel pipe and its production process Download PDFInfo
- Publication number
- CN1389588A CN1389588A CN 02119572 CN02119572A CN1389588A CN 1389588 A CN1389588 A CN 1389588A CN 02119572 CN02119572 CN 02119572 CN 02119572 A CN02119572 A CN 02119572A CN 1389588 A CN1389588 A CN 1389588A
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- China
- Prior art keywords
- steel pipe
- pipe
- clamp
- zinc
- preparation
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- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
Abstract
A kind of single surface hot galvanized steel tube and its production method is opened in the invention. The two ends to be processed of the steel tube are clamped by the clamp and put into hot galvanization groove filled with melted zinc, and taken out after a certain time. By this means the product is produced. Heated air during processing the steel tube streams through cavity in dome on the top end of the steel tube clamped by hollow clamp into the hollow clamp, and leaks out from the cylinder on the end of the hollow clamp. The method can save 50% zinc and meet the need of users well.
Description
The present invention relates to a kind of steel pipe and this steel tube producing method.
The galvanized steel pipe of market sale now is in the equal pot galvanize of surfaces externally and internally, and the internal surface anticorrosion of the user who has and not requiring, as road lamp frame; The enterprise of production Plastic Steel Pipe in addition is to the internal surface of steel pipe and do not require pot galvanize, can reduce the sticking power of plastics tubing and steel pipe internal-surface after the pot galvanize on the contrary.The galvanized steel pipe of surfaces externally and internally soaking in sum not only causes the waste of metallic zinc can not satisfy all users' demand again.
The purpose of this invention is to provide a kind of the outer surface heat at steel pipe is zinc-plated and internal surface is not made antiseptic steel pipe, and the making method of this steel pipe is provided.
The object of the present invention is achieved like this: pending steel pipe passes through buck, dilute hydrochloric acid or dilute sulphuric acid carry out the decontamination rust cleaning, and then the solvent that process is prepared by the miscellany of ammonium chloride and zinc chloride carries out drying after the solvent treatment, two pipe clamps that are used for steel-fastening pipe two ends are hollow, the top of the end that two pipe clamps contact with steel pipe is truncated cone-shaped, the top of two round platforms opening respectively is convenient in the steel pipe heated air and is entered two pipe clamps and enter in the cylinder that is connected with the other end of two pipe clamps along two pipe clamps, the two ends of steel pipe place under the clamping of such two pipe clamps in the Thermal zinc plating bath that fills fusing zinc, crossing certain hour takes out, again through blowing when ring outward, that blows outside that the inwall of ring distributes blows pressurized air that annulate shaft blows out to the apertures that become 30 degree angles outward with steel pipe and brushes time, the hot galvanized layer of outer wall of steel pipe is smoothed, and steel pipe promptly gets this product through the air cooling surface passivation.
The product that the present invention makes is compared with existing steel pipe, because internal surface without pot galvanize, can be saved 50% metallic zinc, has satisfied user's demand again well.
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is the synoptic diagram of method portion of hot of the present invention when zinc-plated.
Embodiment 1, with reference to Fig. 1, through buck or dilute hydrochloric acid, the steel pipe 1 of dilute sulphuric acid decontamination rust cleaning, the solvent of preparing via the miscellany of ammonium chloride and zinc chloride carries out solvent treatment and oven dry again, two pipe clamps 4 that are used for clamping steel pipe 1, the 6th, hollow, pipe clamp 4, the top of 6 ends that contact with steel pipe 1 is truncated cone-shaped, the top of two round platforms is opening 3 respectively, 7 are convenient to steel pipe 1 interior heated air enters pipe clamp 4,6 and enter and two pipe clamps 4 along pipe clamp, in the cylinder 5 that 6 the other end connects, the two ends of steel pipe 1 are at pipe clamp 4, place under 6 the clamping in the Thermal zinc plating bath 2 that fills fusing zinc, crossing certain hour takes out, the annulate shaft therewith that distributes through inwall is outer when blowing ring to what become 30 degree angles again, be subjected to outer blow distribute on the ring inwall with blow compressed-air actuated the brushing down that annulate shaft blows out to the apertures that become 30 degree angles outward, the hot galvanized layer of outer wall of steel pipe is smoothed, after the air cooling surface passivation, take out again and promptly get this product.
Claims (2)
1, a kind of steel pipe and preparation method thereof is characterized in that: this steel pipe 1 has just carried out the pot galvanize processing with its outside surface;
2, a kind of steel pipe and preparation method thereof, it is characterized in that: steel pipe 1 is eliminating rust through the decontamination of buck diluted acid, the solvent of the miscellany preparation of ammonium chloride and zinc chloride carries out solvent treatment, the oven dry back is at the pipe clamp 4 of hollow, place under 6 the clamping in the Thermal zinc plating bath 2 that fills fusing zinc, air in the steel pipe 1 is heated after the pipe clamp 4 of hollow, 6 with the vertical opening 3 of truncated cone-shaped of steel pipe 1 contact jaw, 7 enter pipe clamp 4,6, then enter and pipe clamp 4, the 6 terminal cylinders that connect 5 are also discharged, steel pipe 1 places in the Thermal zinc plating bath 2 and takes out behind the certain hour, again through outside blow ring the time be subjected to outside blow annulate shaft after becoming 30 pressurized air of spending to brush, the hot galvanized layer of steel pipe 1 outer wall is smoothed, and steel pipe 1 can obtain after the air cooling surface passivation only at the galvanized steel pipe of outer surface heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02119572 CN1389588A (en) | 2002-05-26 | 2002-05-26 | Hot galvanized steel pipe and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02119572 CN1389588A (en) | 2002-05-26 | 2002-05-26 | Hot galvanized steel pipe and its production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1389588A true CN1389588A (en) | 2003-01-08 |
Family
ID=4744727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02119572 Pending CN1389588A (en) | 2002-05-26 | 2002-05-26 | Hot galvanized steel pipe and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1389588A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338406B (en) * | 2008-08-15 | 2010-10-06 | 上海永丰热镀锌有限公司 | Hot dip galvanizing process for hollow superposed steel products |
| CN102995084A (en) * | 2012-11-26 | 2013-03-27 | 宁波市江北名正电机有限公司 | Closed galvanizing method for stamping two ends of steel pipe |
| CN103628012A (en) * | 2013-12-05 | 2014-03-12 | 绵阳快典科技有限公司 | Steel pipe coating galvanizing device |
| CN104195490B (en) * | 2014-06-12 | 2017-04-26 | 丹阳市腾黄钢管镀锌有限责任公司 | Hot-dip galvanizing aftertreatment process of steel pipe |
-
2002
- 2002-05-26 CN CN 02119572 patent/CN1389588A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338406B (en) * | 2008-08-15 | 2010-10-06 | 上海永丰热镀锌有限公司 | Hot dip galvanizing process for hollow superposed steel products |
| CN102995084A (en) * | 2012-11-26 | 2013-03-27 | 宁波市江北名正电机有限公司 | Closed galvanizing method for stamping two ends of steel pipe |
| CN102995084B (en) * | 2012-11-26 | 2016-01-20 | 宁波市江北名正电机有限公司 | Galvanized method is closed in the punching press of steel pipe two |
| CN103628012A (en) * | 2013-12-05 | 2014-03-12 | 绵阳快典科技有限公司 | Steel pipe coating galvanizing device |
| CN103628012B (en) * | 2013-12-05 | 2016-01-06 | 绵阳快典科技有限公司 | Steel pipe coating galvanizing rig |
| CN104195490B (en) * | 2014-06-12 | 2017-04-26 | 丹阳市腾黄钢管镀锌有限责任公司 | Hot-dip galvanizing aftertreatment process of steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |