CN204080773U - A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform - Google Patents
A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform Download PDFInfo
- Publication number
- CN204080773U CN204080773U CN201420420728.5U CN201420420728U CN204080773U CN 204080773 U CN204080773 U CN 204080773U CN 201420420728 U CN201420420728 U CN 201420420728U CN 204080773 U CN204080773 U CN 204080773U
- Authority
- CN
- China
- Prior art keywords
- semi
- circular plate
- basic unit
- basosexine
- interior basic
- 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.)
- Expired - Fee Related
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- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
The utility model relates to a kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform, it is characterized in that: semi-circular plate adopts roll seamless steel tube and heat treatment technics one roll forming, comprise interior basic unit, basosexine and transition zone, interior basic unit is semi-circular plate structure, the even rolling of the axial both sides end face of semi-circular plate has basosexine, have transition zone between basosexine and interior basic unit, the thickness of interior basic unit is maximum.The utility model adopts Technology for Heating Processing to complete product structure optimization, thus while guarantee high strength grade, product is made to have higher impact toughness and fatigue resistance, especially there is higher low-temperature flexibility, same kind of products at abroad can be replaced, and have more excellent combination property, manufacturing process is simple, and production efficiency is high.
Description
Technical field
The utility model relates to marine drilling platform, especially a kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform.
Background technology
Along with offshore oil, the deepening continuously of gas field exploration and exploitation, at present, self-elevating drilling platform semi-circular plate be adopt slab hot pressing/cold moudling mode to produce, the shaping difficulty be faced with, lack of homogeneity, poor dimensional precision problem.This project is then that after adopting roll seamless steel tube and heat treatment, the mode of machine cuts produces 550MPa grade of steel self-elevating drilling platform semi-circular plate, effectively can solve slab hot pressing/cold moudling mode Problems existing.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform, design science is reasonable, structure is simple, and manufacturing process is simple, and working (machining) efficiency is high.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform, it is characterized in that: semi-circular plate adopts roll seamless steel tube and heat treatment technics one roll forming, comprise interior basic unit, basosexine and transition zone, interior basic unit is semi-circular plate structure, the even rolling of the axial both sides end face of semi-circular plate has basosexine, have transition zone between basosexine and interior basic unit, the thickness of interior basic unit is maximum.
And described semi-circular plate outer wall integral sealing is all with an anticorrosion clad.
Advantage of the present utility model and good effect are:
The utility model adopts Technology for Heating Processing to complete product structure optimization, thus while guarantee high strength grade, product is made to have higher impact toughness and fatigue resistance, especially there is higher low-temperature flexibility, same kind of products at abroad can be replaced, and have more excellent combination property, manufacturing process is simple, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform, innovative point of the present utility model is: adopt roll seamless steel tube and heat treatment technics one roll forming, comprise interior basic unit 3, basosexine 1 and transition zone 2, interior basic unit is semi-circular plate structure, the even rolling of the axial both sides end face of semi-circular plate has basosexine, transition zone is had between basosexine and interior basic unit, interior basic unit is the middle carbon microalloy that stiffness is higher, basosexine is the low-carbon microalloy that solderability and toughness are higher, and transition zone performance ensures that between interior basic unit and basosexine layer structure is firmly stable; In order to ensure the mechanical strength of semi-circular plate, the thickness of interior basic unit is maximum.
In order to promote the durability of this semi-circular plate, described semi-circular plate outer wall integral sealing is all with an anticorrosion clad 4, and this anticorrosion clad can adopt the copper alloy that stability of material is high.
Adopt low-carbon microalloy designing material, significantly improve the solderability of steel, adopt the mechanical cutting techniques of seamless steel pipe to ensure the machining accuracy of product size.
This product adopts low-carbon microalloy design, has low C content and carbon equivalent, significantly improve the solderability of product than existing product.Adopt rolling and the heat treatment mode of seamless steel simultaneously, substantially increase original semi-circular plate shaping after stability and dimensional stability, for the design of ocean engineering self-elevating drilling platform and construction provide more excellent structural fittings.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (2)
1. the semi-circular plate of a 550MPa grade of steel self-elevating drilling platform, it is characterized in that: semi-circular plate adopts roll seamless steel tube and heat treatment technics one roll forming, comprise interior basic unit, basosexine and transition zone, interior basic unit is semi-circular plate structure, the even rolling of the axial both sides end face of semi-circular plate has basosexine, have transition zone between basosexine and interior basic unit, the thickness of interior basic unit is maximum.
2. the semi-circular plate of the 550MPa grade of steel self-elevating drilling platform at the body of rod according to claim 1, is characterized in that: described semi-circular plate outer wall integral sealing is all with an anticorrosion clad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420728.5U CN204080773U (en) | 2014-07-29 | 2014-07-29 | A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420728.5U CN204080773U (en) | 2014-07-29 | 2014-07-29 | A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204080773U true CN204080773U (en) | 2015-01-07 |
Family
ID=52173508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420420728.5U Expired - Fee Related CN204080773U (en) | 2014-07-29 | 2014-07-29 | A kind of semi-circular plate of 550MPa grade of steel self-elevating drilling platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204080773U (en) |
-
2014
- 2014-07-29 CN CN201420420728.5U patent/CN204080773U/en not_active Expired - Fee Related
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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: 20150107 Termination date: 20180729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |