CN202808871U - On-line bright solid-melting furnace for welded pipe - Google Patents
On-line bright solid-melting furnace for welded pipe Download PDFInfo
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- CN202808871U CN202808871U CN 201220462695 CN201220462695U CN202808871U CN 202808871 U CN202808871 U CN 202808871U CN 201220462695 CN201220462695 CN 201220462695 CN 201220462695 U CN201220462695 U CN 201220462695U CN 202808871 U CN202808871 U CN 202808871U
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Abstract
The utility model relates to an on-line bright solid-melting furnace for a welded pipe. The on-line bright solid-melting furnace comprises a charging trolley, a heating section and a cooling section, wherein a temperature-preserving section is arranged between the heating section and the cooling section. The on-line bright solid-melting furnace enables a steel pipe to have time to be sufficiently melted, guarantees rapid cooling and also prevents the steel pipe from being twisted to be abraded due to rapid cooling, simultaneously greatly reduces the space in a hearth, effectively reduces the use amount of protective gas by utilizing the characteristic that the protective gas rapidly expands after being subjected to high temperature, and rapidly recovers a slightly oxidized layer on the surface of a weld to achieve the purpose of bright annealing. A special material is adopted for sealing an inlet and an outlet of the heating section, so that the leakage of the protective gas is avoided, and the surface of the pipe can be protected from being scratched.
Description
Technical field
The utility model relates to a kind of welded tube processing units, the solid smelting furnace of the online light of especially a kind of welded tube.
Background technology
Online bright solid solution furnace is the equipment that the stainless steel welded pipe of producing is carried out synchronously bright heat treatment on production line, is one of key equipment of stainless steel welded pipe production, and can equipment operation steady in a long-term directly affect quality product.Whole equipment comprises power-supply system, hot spots, work-piece cools system, workpiece gas protection system, infrared thermometry Controlling System etc.There are a lot of problems in present welded tube solid solution furnace, and welded tube often heats inhomogeneous, and is oxidized easily in heat-processed, and the welded tube after the heating is relatively more fragile, and welded tube and cooling section contact friction in process of cooling are easy to be pulled.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art; provide the online light of a kind of welded tube solid smelting furnace, make the free fully solid solution of steel pipe, guarantee that quick cooling can prevent that again steel pipe from twisting scratch because of fast cooling; significantly reduce simultaneously space in the burner hearth, can effectively reduce the shielding gas consumption.
The utility model solves the technical scheme that its technical problem adopts: the solid smelting furnace of the online light of this welded tube, comprise Material feeding trolley, heating zone and cooling section, and be provided with one section holding-zone between heating zone and the cooling section.Add the about one meter long holding-zone of the preceding paragraph in the heating zone back, make heat more even along the tubing circle distribution, and can make the free fully solid solution of stainless steel tube.
Wherein holding-zone is the tubular structure that is made of one deck asbestos.Simple in structure, adopt the asbestos insulation, high insulating effect, and also durable.
Wherein the outlet of heating zone is provided with the shielding gas intake that passes into heating zone inside, and is provided with the shielding gas outlet at the entrance of heating zone.Shielding gas enters from the outlet of heating zone, enters the shielding gas expanded by heating after the heating zone, has saved like this consumption of protecting other.
Wherein the inwall of cooling section is provided with graphite cannula.Welded tube after the heating is easy to be pulled, and the smooth surface of graphite cannula contacts with surface of welded pipe, plays a very good protection, and prevents
The effect that the utility model is useful is: the utility model makes the free fully solid solution of steel pipe; guarantee that quick cooling can prevent that again steel pipe from twisting scratch because of fast cooling; significantly reduce simultaneously space in the burner hearth; can effectively reduce the shielding gas consumption; shielding gas Yin Gaowen rapid expansion; thereby saving and protection gas usage greatly, butt welded seam surface slight oxidation layer fast restore simultaneously reaches the purpose of clean annealing.In entrance and the outlet of heating zone, adopt the exotic materials sealing, not only guaranteed that shielding gas do not reveal but also guaranteed that tube surfaces can not scratch.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Description of reference numerals: Material feeding trolley 1, heating zone 2, cooling section 3, holding-zone 4, asbestos 5, shielding gas intake 6, shielding gas outlet 7, graphite cannula 8.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: the solid smelting furnace of the online light of this welded tube, comprise Material feeding trolley 1, heating zone 2 and cooling section 3, be provided with one section holding-zone 4 between heating zone 2 and the cooling section 3, holding-zone 4 is the tubular structure that is made of one deck asbestos 5.Wherein the outlet of heating zone 2 is provided with the shielding gas intake 6 that passes into heating zone 2 inside, and is provided with shielding gas outlet 7 at the entrance of heating zone 2.Wherein the inwall of cooling section 2 is provided with graphite cannula 8.
1. heating zone 3 adopts induction heating, although efficient, but there is heating non-uniform phenomenon (the tubing circumference is difficult to guarantee concentric with ruhmkorff coil), the shortcomings such as soaking time is too short, we specially add the about one meter long holding-zone 4 of the preceding paragraph behind ruhmkorff coil, make heat more even along the tubing circle distribution, and can make the free fully solid solution of stainless steel tube.
2. for satisfying the particular requirement that needs fast cooling or chilling after the stainless steel tube heating, we specially add graphite cannula in cooling section, make the pipe after the heating pass graphite cannula, again through indirect water-cooling, guarantee that the pipe under the high temperature cools off fast.Such design can guarantee that quick cooling can prevent that again pipe from twisting scratch because of fast cooling, significantly reduces space in the burner hearth simultaneously, can effectively reduce shielding gas consumption (H2).
3. between the high-temperature zone between heating zone and the holding-zone, introduce shielding gas (H2), shielding gas Yin Gaowen rapid expansion, thereby saving and protection gas usage greatly, butt welded seam surface slight oxidation layer fast restore simultaneously reaches the purpose of clean annealing.
4. in entrance and the outlet of heating zone, adopt the exotic materials sealing, not only guaranteed that shielding gas do not reveal but also guaranteed that tube surfaces can not scratch.
Although the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (1)
1. the online light of welded tube is consolidated smelting furnace, comprise Material feeding trolley (1), heating zone (2) and cooling section (3), it is characterized in that: be provided with one section holding-zone (4) between described heating zone (2) and the cooling section (3), holding-zone (4) is the tubular structure that is made of one deck asbestos (5); The outlet of described heating zone (2) is provided with and passes into the inner shielding gas intake (6) of heating zone (2), and is provided with shielding gas outlet (7) at the entrance of heating zone (2); The inwall of described cooling section (2) is provided with graphite cannula (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462695 CN202808871U (en) | 2012-09-12 | 2012-09-12 | On-line bright solid-melting furnace for welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462695 CN202808871U (en) | 2012-09-12 | 2012-09-12 | On-line bright solid-melting furnace for welded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808871U true CN202808871U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462695 Expired - Fee Related CN202808871U (en) | 2012-09-12 | 2012-09-12 | On-line bright solid-melting furnace for welded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710512A (en) * | 2014-01-11 | 2014-04-09 | 广东志达精密管业制造有限公司 | Steel pipe annealing equipment and steel pipe annealing technology |
| CN105765086A (en) * | 2013-12-19 | 2016-07-13 | 山特维克原料技术德国公开股份有限公司 | Annealing furnace and method for annealing steel strand |
-
2012
- 2012-09-12 CN CN 201220462695 patent/CN202808871U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765086A (en) * | 2013-12-19 | 2016-07-13 | 山特维克原料技术德国公开股份有限公司 | Annealing furnace and method for annealing steel strand |
| US10400302B2 (en) | 2013-12-19 | 2019-09-03 | Sandvik Materials Technology Deutschland Gmbh | Annealing furnace and method for annealing a steel strand |
| CN105765086B (en) * | 2013-12-19 | 2021-03-30 | 山特维克原料技术德国公开股份有限公司 | Annealing furnace and method for annealing steel strand |
| CN103710512A (en) * | 2014-01-11 | 2014-04-09 | 广东志达精密管业制造有限公司 | Steel pipe annealing equipment and steel pipe annealing technology |
| CN103710512B (en) * | 2014-01-11 | 2016-04-20 | 广东志达精密管业制造有限公司 | Steel-pipe annealing device and annealing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140912 |
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| EXPY | Termination of patent right or utility model |