CN102513718A - Method for welding bevel on end part of integral multilayer clamping-type drum body - Google Patents
Method for welding bevel on end part of integral multilayer clamping-type drum body Download PDFInfo
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- CN102513718A CN102513718A CN2011104541309A CN201110454130A CN102513718A CN 102513718 A CN102513718 A CN 102513718A CN 2011104541309 A CN2011104541309 A CN 2011104541309A CN 201110454130 A CN201110454130 A CN 201110454130A CN 102513718 A CN102513718 A CN 102513718A
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- drum body
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Abstract
The invention provides a method for welding a bevel on an end part of an integral multilayer clamping-type drum body, which is characterized in that: the end part of the drum body is connected with a veneer sheet in a welding way through a surfacing welding layer, and one side of the veneer sheet is provided with an inner drum. An angle between the veneer sheet and the end part of the drum body is 60 degrees, an angle between a slope surface of the surfacing welding layer and the end part of the drum body is 30 degrees, and an angle between the inner drum and the veneer sheet is 60 degrees. The inner side of the end part of the drum body is processed into a four-layer stage, and the rest of the end part of the drum body is a 30-degree stage-free bevel. When the multilayer drum body is welded with the end part material of the drum body through dissimilar steel, a J507 surfacing welding layer is adopted for transitional welding on the surface of the bevel on the end part of the drum body. By adopting the welding bevel and the welding method, the interlayer gap on the end part of the veneer sheet can be controlled, the welding defect of the dissimilar steel can be overcome through the surfacing welding layer, and the welding quality of equipment can be improved. The method is suitable for being used when welding an integral multilayer clamping-type high-pressure vessel drum body.
Description
Technical field
The present invention relates to a kind of Petro-Chemical Machinery manufacturing, specifically relate to the bevel for welding structural shape that integral multi-layered clamped-in style wrapping equipment barrel end and multi-layer cylinder weld mutually.The welding method of specifically a kind of integral multi-layered clamped-in style cylindrical shell end bevel for welding.
Background technology
Along with the expansion day by day of industry production abilities such as petrochemical industry, chemical fertilizer industry, to process units require increasingly high.The large pressurized vessel of HTHP, cryogenic high pressure also increases day by day.Integral multi-layered fasten type high-voltage container is a kind of comparatively ideal process units.Have rational in infrastructure, simplified manufacturing process, characteristics such as stock utilization is high, and cost is low and safe and reliable, and can be a kind of novel multi-layer high-pressure bottle structure that is fit to China's national situation to large scale development.But the weak link of vessel strength often that is connected of integral multi-layered clamped-in style laminate cylindrical shell and cylindrical shell end.
Before the present invention proposed, cylindrical shell end groove was multistage ledge structure, and groove face does not have built-up welding transition overlay cladding.Owing to be prone to form the accumulation gap behind the integral multi-layered laminated board dressing, multistage step is difficult to guarantee tight butt joint of laminate and cylindrical shell end (bottom bulkhead end), with influencing group to quality.The material of cylindrical shell end often is the 20MnMo forging simultaneously, and often is Q345R with its laminate material that welds mutually, is defectives such as dissimilar steel welding, weld seam are prone to crack.
Summary of the invention
For being guarantees to control the radial clearance that integral multi-layered clamped-in style is wrapped up the equipment laminate, and the welding quality that improves integral multi-layered clamped-in style multi-layer cylinder and cylindrical shell end dissimilar steel.For the technical solution problem, the present invention proposes the welding method of a kind of integral multi-layered clamped-in style cylindrical shell end bevel for welding.
The technical scheme that adopts is:
Between cylindrical shell end and laminate,, inner core is set in laminate one side through the overlay cladding welding.
The angle of laminate and cylindrical shell end is 60 °, and overlay cladding inclined-plane and cylindrical shell end angle are 30 °, and the inside and outside angle of inner core and laminate is 60 °.
Be processed into four layers of step in the inboard of end, all the other are 30 ° of no step grooves.
When multi-layer cylinder and cylindrical shell end material were the dissimilar steel welding, groove face adopted the J507 overlay cladding to carry out the transition welding in the cylindrical shell end.
Good effect, the setting of bevel for welding of the present invention and welding can be controlled gap between the laminate end layers, and the overlay cladding structure has been eliminated the dissimilar steel weld defect, has improved the welding quality of equipment.The suitable manufacturing when integral multi-layered fasten type high-voltage shell welds used.
Description of drawings
Fig. 1 is provided with state diagram for bevel for welding of the present invention
Among the figure: 1. laminate, 2. inner core, 3. overlay cladding, 4. cylindrical shell end.
The specific embodiment
Shown in figure, between cylindrical shell end 4 and laminate,, inner core 2 is set in laminate 1 one sides through overlay cladding 3 welding.
The angle of laminate and cylindrical shell end is 60 °, and overlay cladding inclined-plane and cylindrical shell end angle are 30 °, and the inside and outside angle of inner core and laminate is 60 °.
For effectively controlling the gap between integral multi-layered clamped-in style multi-layer cylinder laminate, guarantee laminate cylindrical shell and good the docking in cylindrical shell end, be processed into four layers of step in the inboard of end, all the other are 30 ° of no step grooves.
For avoiding because reasons in structure, when multi-layer cylinder and cylindrical shell end material are the dissimilar steel welding, the defective that weld seam is prone to crack, groove face adopts the J507 overlay cladding to carry out transition to weld in the cylindrical shell end.
Can guarantee welding quality when adopting the inventive method that integral multi-layered fasten type high-voltage shell is welded, prevent welding deformation.
Claims (1)
1. the welding method of an integral multi-layered clamped-in style cylindrical shell end bevel for welding is characterized in that:
Between cylindrical shell end and laminate,, inner core is set in laminate one side through the overlay cladding welding;
The angle of laminate and cylindrical shell end is 60 °, and overlay cladding inclined-plane and cylindrical shell end angle are 30 °, and the inside and outside angle of inner core and laminate is 60 °;
Be processed into four layers of step in the inboard of cylindrical shell end, all the other are 30 ° of no step grooves;
When multi-layer cylinder and cylindrical shell end material were the dissimilar steel welding, groove face adopted the J507 overlay cladding to carry out the transition welding in the cylindrical shell end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104541309A CN102513718A (en) | 2011-12-30 | 2011-12-30 | Method for welding bevel on end part of integral multilayer clamping-type drum body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104541309A CN102513718A (en) | 2011-12-30 | 2011-12-30 | Method for welding bevel on end part of integral multilayer clamping-type drum body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102513718A true CN102513718A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104541309A Pending CN102513718A (en) | 2011-12-30 | 2011-12-30 | Method for welding bevel on end part of integral multilayer clamping-type drum body |
Country Status (1)
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| CN (1) | CN102513718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255695A (en) * | 2022-07-26 | 2022-11-01 | 上海江南长兴造船有限责任公司 | Precision control method for reducing size loss of thick and thin plate jointed plate groove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2365696A (en) * | 1941-01-08 | 1944-12-26 | Babcock & Wilcox Co | Method of making laminated pressure vessels |
| JPS61172681A (en) * | 1985-01-28 | 1986-08-04 | Mitsubishi Heavy Ind Ltd | Production of built-up pressure vessel for high temperature service |
| CN2067350U (en) * | 1990-06-11 | 1990-12-12 | 南京第二化工机械厂 | Multideck pressure container without annular deep slot |
| CN2068007U (en) * | 1990-05-08 | 1990-12-26 | 华南理工大学 | Multilayer body pinch type container |
| CN201168592Y (en) * | 2008-03-19 | 2008-12-24 | 长沙威重化工机械有限公司 | Integral multi-layer clamp type container |
-
2011
- 2011-12-30 CN CN2011104541309A patent/CN102513718A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2365696A (en) * | 1941-01-08 | 1944-12-26 | Babcock & Wilcox Co | Method of making laminated pressure vessels |
| JPS61172681A (en) * | 1985-01-28 | 1986-08-04 | Mitsubishi Heavy Ind Ltd | Production of built-up pressure vessel for high temperature service |
| CN2068007U (en) * | 1990-05-08 | 1990-12-26 | 华南理工大学 | Multilayer body pinch type container |
| CN2067350U (en) * | 1990-06-11 | 1990-12-12 | 南京第二化工机械厂 | Multideck pressure container without annular deep slot |
| CN201168592Y (en) * | 2008-03-19 | 2008-12-24 | 长沙威重化工机械有限公司 | Integral multi-layer clamp type container |
Non-Patent Citations (2)
| Title |
|---|
| 李滨: "直径1400毫米尿素合成塔衬里更换工艺概述", 《宁夏石油化工》 * |
| 杨俊岭等: "多层包扎压力容器设计探讨", 《大氮肥》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255695A (en) * | 2022-07-26 | 2022-11-01 | 上海江南长兴造船有限责任公司 | Precision control method for reducing size loss of thick and thin plate jointed plate groove |
| CN115255695B (en) * | 2022-07-26 | 2024-01-16 | 上海江南长兴造船有限责任公司 | Precision control method for reducing groove size loss of thick and thin plate jointed boards |
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| PB01 | Publication | ||
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| 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 |
Application publication date: 20120627 |