CN202808866U - Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace - Google Patents
Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace Download PDFInfo
- Publication number
- CN202808866U CN202808866U CN 201220344353 CN201220344353U CN202808866U CN 202808866 U CN202808866 U CN 202808866U CN 201220344353 CN201220344353 CN 201220344353 CN 201220344353 U CN201220344353 U CN 201220344353U CN 202808866 U CN202808866 U CN 202808866U
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- China
- Prior art keywords
- flange
- metal shell
- pipeline section
- welding
- dip pipe
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a sleeved type welded structure for a metal shell of a dip pipe of an RH furnace. The telescopic type welded structure is characterized in that the inner diameter of the flange of the metal shell and the outer diameter of the upper part of a pipe section are machined and chamfered, then the flange is sleeved on the pipe section, and the chamfered parts are combined to be a V-shaped or U-shaped welding groove suitable for downward welding. The metal shell with the novel structure not only ensures the concentricity of the flange and the pipe section in assembling but also has reliable welding-line quality of the flat welding and high welding efficiency, so that the service life of the dip pipe is prolonged, and the manufacture difficulty and manufacture time of the metal shell are reduced.
Description
Technical field
The utility model relates to a kind of a kind of sleeve type welded construction that is applied in steel-making vacuum refining furnace (RH stove) dip pipe part metal shell, metal shell especially relates to flange and pipeline section is adopted the metal shell that is set with the positioning welding structure as the skeleton of soaking tub refractory materials.
Background technology
The RH stove is a kind of important external refining equipment, has the series of advantages such as treatment cycle is short, throughput is large, refining effect is good, easy operation, is applied widely in large-scale iron and steel enterprise STEELMAKING PRODUCTION.Its soaking tub is comprised of with metal box hat and the outside refractory materials that supports refractory materials as skeleton inside, because the soaking tub external portion immerses molten steel, inside is again the passage of MOLTEN STEEL FLOW, temperature is up to 1650 ℃ during use, working conditions is abominable, it is the key position of RH stove, affects the whole result of use of RH stove.
The metal box hat not only has the intensity of supporting refractory materials, also will have the resistance to air loss that prevents that ambient atmos from immersing, and structurally also must have certain dimensional precision and be convenient to processing and fabricating simultaneously.The flange of metal shell and pipeline section adopt the mode of welding, when its packaging assembly and welding requirements do not meet, to cause and be difficult to welding, dislocation, strength decreased and weld porosity, " the wearing steel " of causing the oxidation ablation of refractory materials in the use and producing soaking tub, molten steel enters rear destruction metal shell along wearing the steel orifice flow, and the life-span of soaking tub is reduced rapidly.
The utility model content
The utility model solves its technical problem and provides the welded metal shell of a kind of sleeve type, it has changed traditional metal shell welded construction form, from the technological angle of metal solder, the welded metal shell of sleeve type had both guaranteed the bearing accuracy of flange and pipeline section, guarantee again the welding quality of weld seam, and then can effectively improve the work-ing life of soaking tub integral body.
In order to solve the problems of the technologies described above, the utility model is at first processed the flange internal diameter cylindrical surface at steel-making vacuum refining furnace (RH stove) dip pipe part metal shell and chamfering, processing external diameter cylindrical surface, the position of pipeline section top companion flange thickness and its corresponding chamfering, the internal diameter size of flange is greater than the outside dimension of pipeline section, then flange is sleeved on the top of pipeline section, flange and pipeline section be the location by the cylindrical surface of processing and mutually accurately, and the chamfering of flange and pipeline section is combined as V-arrangement or a U-shaped bevel for welding that can adopt downhand welding.
The beneficial effects of the utility model are because mutually accurately locating of the flange of metal shell and pipeline section makes flange and pipeline section guarantee can produce dislocation with one heart and not, make soaking tub internal steel water flow passage unobstructed; Simultaneously because V-arrangement or U-shaped bevel for welding after flange and the pipeline section combination are the flat welds that is easy to weld, can because causing soaking tub, weld porosity " not wear steel ", namely improved the work-ing life of soaking tub, also improved the manufacturing speed of metal shell, its manufacturing speed has improved 60% than traditional design form.
Description of drawings
Below in conjunction with the drawings and specific embodiments to further detailed explanation of the utility model.
Fig. 1 is the front view of metal shell.
Fig. 2 is the welded partial enlarged drawing of metal shell sleeve type.
Embodiment
RH stove soaking tub is comprised of metal shell and the outside refractory materials of inside, and metal shell is produced by the engineering works with structure processing and manufacturing ability, delivers to refractory factory after the completion and is combined as soaking tub.Metal shell is comprised of flange 1, pipeline section 2 as shown in Figure 1.
At first the flange 1 internal diameter cylindrical surface of metal shell is processed and chamfering, processing external diameter cylindrical surface, the position of pipeline section 2 top companion flange thickness and chamfering, running fit is adopted on the cylindrical surface, the internal diameter size of flange 1 is greater than the outside dimension of pipeline section 2, chamfer dimesion is pressed the bevel for welding dimensional requirement, then flange 1 is sleeved on the top of pipeline section 2, flange 1 and pipeline section 2 be the location by the cylindrical surface of processing and mutually accurately, and the chamfering of flange 1 and pipeline section 2 is combined as V-arrangement or a U-shaped bevel for welding that can adopt downhand welding.
The partial enlarged drawing of flange 1 and pipeline section 2 sleeve type structures as shown in Figure 2.Weld seam 3 is the welded weld seams of sleeve type.
Metal shell adopts this sleeve type welded construction, has guaranteed concentricity and the soldering reliability of flange and pipeline section, thereby is provided the work-ing life of soaking tub, has also reduced manufacture difficulty and the manufacturing time of metal shell.
Claims (1)
1. welded metal shell of vacuum refining furnace dip pipe sleeve type, it is characterized in that: the flange internal diameter cylindrical surface at steel-making dip pipe part of vacuum refining furnace metal shell processes and chamfering, processing external diameter cylindrical surface, the position of pipeline section top companion flange thickness and its corresponding chamfering, the internal diameter size of flange is greater than the outside dimension of pipeline section, flange is sleeved on the top of pipeline section, flange and pipeline section be the location by the cylindrical surface of processing and mutually accurately, and the chamfering of flange and pipeline section is combined as V-arrangement or a U-shaped bevel for welding that can adopt downhand welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344353 CN202808866U (en) | 2012-07-17 | 2012-07-17 | Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344353 CN202808866U (en) | 2012-07-17 | 2012-07-17 | Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808866U true CN202808866U (en) | 2013-03-20 |
Family
ID=47867781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344353 Expired - Lifetime CN202808866U (en) | 2012-07-17 | 2012-07-17 | Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804541A (en) * | 2021-08-13 | 2021-12-17 | 浙江大学 | Steel pipe sample for tensile test in high-pressure hydrogen environment and preparation method thereof |
-
2012
- 2012-07-17 CN CN 201220344353 patent/CN202808866U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804541A (en) * | 2021-08-13 | 2021-12-17 | 浙江大学 | Steel pipe sample for tensile test in high-pressure hydrogen environment and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471039, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee after: Sinosteel luonai New Material Technology Co.,Ltd. Address before: 471039, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: SINOSTEEL REFRACTORY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471039, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee after: Sinosteel luonai Technology Co.,Ltd. Address before: 471039, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: Sinosteel luonai New Material Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |