CN207018502U - Composite hard alloy blind flange - Google Patents
Composite hard alloy blind flange Download PDFInfo
- Publication number
- CN207018502U CN207018502U CN201720424027.2U CN201720424027U CN207018502U CN 207018502 U CN207018502 U CN 207018502U CN 201720424027 U CN201720424027 U CN 201720424027U CN 207018502 U CN207018502 U CN 207018502U
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- rebound
- blind flange
- hard alloy
- composite hard
- alloy
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Abstract
The utility model discloses a kind of composite hard alloy blind flange, and it is mainly made up of blind flange, rebound and antiscour abrasion hard alloy casting.Uniform some inverted trapezoidal holes on rebound, antiscour abrasion hard alloy is cast on rebound, processing casting makes each surface meet design requirement and processes welding groove, and the casting processed and blind flange are welded, post-processing leg is completed in welding, to meet assembling demand.The utility model solves existing overlaying structure, and built-up welding deflection is excessive, the problem of complex process, while service life of equipment under ensureing big erosive rate, realizes that basic unit's deflection is small, and the simplification of processing technology；It is simple to operate, save man power and material.
Description
Technical field
The pressure vessel of chemical industry is the utility model is related to, specially a kind of composite hard alloy blind flange, is applied to
In pressure vessel high corrosion environment, slow down equipment corrosion speed.
Background technology
In pressure vessels for the chemical industry, because the working environment inside pressure vessel is high temperature, corrosive environment mostly, with medium
Flowing can also produce the situation of abrasion and occur, it is serious that this results in equipment corrosion, shortening device service life, so as to need through
Often change.Now generally use composite plate or the structure of built-up welding high-alloy steel, to slow down equipment corrosion speed, but run into high corrosion
Property and when corrasion mixed type medium is washed away to apparatus body, significantly increases the erosive rate of equipment, now generally adopts
By the use of increase overlay cladding thickness and high hardness alloy steel is used instead as overlay cladding, but the increase with overlay cladding thickness and material hardness
Increase, to bead-welding technology require also more and more higher, while can also cause the deflection of built-up welding basic unit to increase, so as to cause equipment
Failure.Therefore a kind of structure that can both simplify welding procedure, service life of equipment can be increased again is needed.
The content of the invention
The utility model be in order to solve overlay cladding thickness it is excessive and cause basic unit's deflection it is excessive influence equipment use the longevity
A kind of the problem of life, there is provided composite hard alloy blind flange.
The utility model is realized with following technical scheme：
A kind of composite hard alloy blind flange, including blind flange, the blind flange medial surface middle part are fixedly connected with rebound,
The rebound is fixedly connected with carbide alloy board.
Carbide alloy board is installed additional by rebound in blind flange medial surface, adds the structural strength of anti-corrosion layer, is solved
It is existing directly deflection caused by build-up welding alloy material on the inside of blind flange is excessive the problem of.
Preferably, reducing hole is evenly equipped with the rebound, being connected with hard by casting mode on the rebound closes
Golden plate, the convex body of the hard alloy back are full of reducing hole.That is, carbide alloy board is casting, during processing, transition
Plate will leave enough allowance, in order to increase the stabilization that rebound is cast with the hard alloy with antiscour corrasion
Property, therefore uniform some reducing holes on rebound（Hole section is trapezoidal）, during casting, it is direct that antiscour is denuded into hard alloy
Cast on rebound, in casting process, hard alloy liquid stream enters the reducing hole of rebound, forms the convex of hard alloy back
Body, carbide alloy board form entirety with rebound.After the completion of casting, each surface of casting is processed, while including rebound
Surface, especially to process the welding groove of rebound；After machining, the component that will process（Rebound and hard alloy
Plate）Welded by welding groove and blind flange, post-processing leg is completed in welding, to meet the needs of assembling.
The beneficial effects of the utility model are：
1st, the structural strength of anti-corrosion layer is added, increases service life of equipment.
2nd, deflection caused by solving the problems, such as built-up welding is excessive, improves assembly precision.
3rd, the complicated technology of built-up welding is changed, has saved time and cost.
Brief description of the drawings
Fig. 1 represents structural representation of the present utility model.
Fig. 2 represents welding groove figure of the present utility model.
In figure：1- carbide alloy boards, 2- rebounds, 3- blind flanges, 4- welding grooves.
Embodiment
Specific embodiment of the utility model is illustrated below in conjunction with the accompanying drawings.
A kind of composite hard alloy blind flange, including blind flange, rebound and antiscour abrasion hard alloy casting composition.
As shown in figure 1, welding transition plate 2, rebound material and blind flange phase same material in the middle part of the medial surface of blind flange 3.The rebound 2
Carbide alloy board 1 is fixedly connected with, specifically, being evenly equipped with reducing hole on the rebound 2, passes through casting side on the rebound 2
Formula is connected with carbide alloy board 1, and the convex body at the back side of carbide alloy board 1 is full of reducing hole, i.e., in casting cycle, hard alloy liquid
Determine full of being formed behind reducing hole with reducing hole shape identical convex body, the stabilization for increasing carbide alloy board and rebound, form whole
Body.Also, the big end in the reducing hole on rebound 2 is located at blind flange side, its small end is located at carbide alloy board side, such rebound
On reducing hole equivalent to dovetail groove function, carbide alloy board is stuck on rebound, prevents coming off for carbide alloy board.
In the present embodiment, rebound 2 is circle, and the rebound 2 is identical with the diameter of carbide alloy board 1.The transition
The thickness of plate 2 is the 1/3-1/4 of the thickness of carbide alloy board 1.Specifically, the thickness of carbide alloy board 1 is 1-10cm.
During specific preparation, enough allowance is left to rebound 2, and uniform some sections are to fall on rebound 2
Trapezoidal reducing hole, it can so increase the casting stability of rebound and carbide alloy board.Antiscour is denuded into hard alloy
Cast on rebound 2, form antiscour abrasion carbide alloy board（Casting）1, casting is oblate cylindricality, then to casting and mistake
The each surface of cab apron is processed, and in rebound upper surface, the welding groove of a circumference is processed according to Fig. 2, then will process
Rebound and casting this integrally welded with blind flange.In order that blind flange 3 welds easily with rebound 2, rebound 2
It is identical with the material of blind flange 3.After the completion of finally welding, leg processing is carried out to composite hard alloy blind flange, is allowed to meet
Assembling demand.
Exemplary description is carried out to the utility model above in conjunction with accompanying drawing, it is clear that the utility model concrete implementation is not
Limited by aforesaid way, if the various improvement that methodology and technical scheme of the present utility model are carried out are employed, or not
Improved directly application and other occasions, in the scope of protection of the utility model.
Claims (9)
1. a kind of composite hard alloy blind flange, including blind flange（3）, it is characterised in that：The blind flange（3）In the middle part of medial surface
It is fixedly connected with rebound（2）, the rebound（2）It is fixedly connected with carbide alloy board（1）；
The rebound（2）On be evenly equipped with reducing hole, the rebound（2）On carbide alloy board is connected with by casting mode
（1）, the carbide alloy board（1）The convex body at the back side is full of reducing hole.
2. composite hard alloy blind flange according to claim 1, it is characterised in that：The blind flange（3）And rebound
（2）Material is identical.
3. composite hard alloy blind flange according to claim 1, it is characterised in that：The rebound（2）It is welded in method
Orchid lid（3）On.
4. composite hard alloy blind flange according to claim 1, it is characterised in that：The rebound（2）On reducing
The big end in hole is located at blind flange side, its small end is located at carbide alloy board side.
5. the composite hard alloy blind flange according to claim 1 or 3, it is characterised in that：The rebound（2）With hard
Alloy sheets（1）Diameter is identical.
6. composite hard alloy blind flange according to claim 2, it is characterised in that：The rebound（2）Closed with hard
Golden plate（1）Diameter is identical.
7. composite hard alloy blind flange according to claim 5, it is characterised in that：The rebound（2）Thickness is hard
Matter alloy sheets（1）The 1/3-1/4 of thickness.
8. composite hard alloy blind flange according to claim 6, it is characterised in that：The rebound（2）Thickness is hard
Matter alloy sheets（1）The 1/3-1/4 of thickness.
9. composite hard alloy blind flange according to claim 8, it is characterised in that：The carbide alloy board（1）Thickness
For 1-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424027.2U CN207018502U (en) | 2017-04-21 | 2017-04-21 | Composite hard alloy blind flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424027.2U CN207018502U (en) | 2017-04-21 | 2017-04-21 | Composite hard alloy blind flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018502U true CN207018502U (en) | 2018-02-16 |
Family
ID=61460801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720424027.2U Active CN207018502U (en) | 2017-04-21 | 2017-04-21 | Composite hard alloy blind flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607853A (en) * | 2022-03-10 | 2022-06-10 | 江阴市万里锻件有限公司 | Long-life flange based on hard alloy and preparation process thereof |
-
2017
- 2017-04-21 CN CN201720424027.2U patent/CN207018502U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607853A (en) * | 2022-03-10 | 2022-06-10 | 江阴市万里锻件有限公司 | Long-life flange based on hard alloy and preparation process thereof |
| CN114607853B (en) * | 2022-03-10 | 2024-04-12 | 江阴市万里锻件有限公司 | Long-life flange based on hard alloy and preparation process thereof |
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