CN207213451U - A kind of double-layer wear-resistant pipe - Google Patents
A kind of double-layer wear-resistant pipe Download PDFInfo
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- CN207213451U CN207213451U CN201621141773.2U CN201621141773U CN207213451U CN 207213451 U CN207213451 U CN 207213451U CN 201621141773 U CN201621141773 U CN 201621141773U CN 207213451 U CN207213451 U CN 207213451U
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- outer tube
- tube
- inner tube
- double
- resistant pipe
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Abstract
The utility model discloses a kind of double-layer wear-resistant pipe, including the outer tube for welding and for wear-resisting inner tube, the outer wall of said inner tube and the inwall gapless of outer tube are inlayed, the outer tube and inner tube are disposed as bending, its inside angle of bend is 6 90 °, and the both ends of the outer tube are welded with flange.The utility model inlays gapless among inner and outer tubes, and interlayer need not add filler, and make its manufacturing process simple.
Description
Technical field
It the utility model is related to wear-resistant pipe application field, more particularly to a kind of double-layer wear-resistant pipe.
Background technology
At present, the double-layer wear-resistant pipe of in the market forms by inner tube, outer tube and the filler among both, and the bilayer is resistance to
Not only manufacturing process is more complicated for mill pipe, because there is filler centre so that and the wearability of inner tube reduces, and uses for a long time,
Multiple potholes occur on the inwall of inner tube, the pothole can extend to the inwall direction of outer tube again, also reduce the use of outer tube
In the life-span, so as to cause to be changed whole double-layer wear-resistant pipe, it is unfavorable for the control of cost, is equally also unfavorable for its stable work
Industry.
Utility model content
To overcome disadvantages mentioned above, the purpose of this utility model is to provide a kind of double-layer wear-resistant pipe, reached make inner tube and
Gapless is inlayed among outer tube, without adding filler, and makes the simple purpose of its manufacturing process.
In order to solve the above-mentioned technical problem, the utility model provides a kind of double-layer wear-resistant pipe, including the outer tube for welding
Inlayed with for wear-resisting inner tube, the outer wall of said inner tube and the inwall gapless of outer tube, the outer tube and inner tube are disposed as
Bending, its inside angle of bend are 6-90 °, and the both ends of the outer tube are welded with flange.Without central filler thing continuously
The double-layer wear-resistant pipe that gap is inlayed avoids inner tube wall and pothole occurs, it is wear-resisting to improve its because its inner and outer tubes is superposition thickness
Property, make it more durable in use, extend its service life, reduce the frequency of replacing, be effectively controlled cost, and stabilize
Operation.
Further, the thickness of the outer tube is 2-6mm, and it selects high-quality mild steel, and the thickness of inner tube is
6-12mm, it selects steel alloy or manganese steel.Further improve the welding stability of outer tube and the wearability of inner tube.
Further, the interior diameter of said inner tube is arranged to 95-180mm.To adapt to more current conventional products.
Further, the inner wall thickness size of radian is more than the inner wall thickness chi of interior radian outside the bending section of the wear-resistant pipe
Very little, its thickness difference is 1.5-3mm.It ensure that outer radian position is more wear-resisting.
A kind of double-layer wear-resistant pipe, including outer tube for welding and for wear-resisting inner tube, the outer wall of said inner tube with it is outer
The inwall gapless of pipe is inlayed, and longitudinal interface of the outer tube and inner tube is disposed as isosceles trapezoid, described outer tube one end it is outer
Wall diameter is arranged to 108-194mm, and the outer diameter of the other end is arranged to 100mm or 180mm, and the both ends of the outer tube are welded with
Flange.The double-layer wear-resistant pipe that the thin gapless in the thick one end in one end is inlayed is equally strong with wearability, and more durable in use, extension makes
The features such as with the life-span.
Further, the thickness of said inner tube is 6-12mm.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present embodiment；
Fig. 2 is the structural representation of the present embodiment；
In figure：1- outer tubes；2- inner tubes；3- flanges.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
Referring to shown in accompanying drawing 1, a kind of double-layer wear-resistant pipe, including outer tube 1 for welding and for wear-resisting inner tube 2, it is interior
The inwall gapless of the outer wall of pipe 2 and outer tube 1 is inlayed, and the thickness of outer tube 1 is 2-6mm, and it selects high-quality mild steel, inner tube
2 thickness is 6-12mm, and it selects steel alloy or manganese steel, and the interior diameter of inner tube 2 is arranged to 95-180mm, outer tube 1 and interior
Pipe 2 is disposed as bending, and its inside angle of bend is 6-90 °, the inner wall thickness size of radian outside the bending section of wear-resistant pipe
More than the inner wall thickness size of interior radian, its thickness difference is 1.5-3mm, and the both ends of outer tube 1 are welded with flange 3.
Referring to shown in accompanying drawing 2, a kind of double-layer wear-resistant pipe, including outer tube 1 for welding and for wear-resisting inner tube 2, it is interior
The inwall gapless of the outer wall of pipe 2 and outer tube 1 is inlayed, and longitudinal interface of outer tube 1 and inner tube 2 is disposed as isosceles trapezoid, outer tube 1
The outer diameter of one end is arranged to 108-194mm, and the outer diameter of the other end is arranged to 100mm or 180mm mm, the length of outer tube 1
Degree size is 125-180mm, and the thickness of inner tube 2 is 6-12mm, and the both ends of outer tube 1 are welded with flange 3.
The wear-resistant pipe maintains the original physical and chemical properties of inner and outer tubes, adds overall intensity again, its table
Surface hardness is high and uniform, and thermal shock resistance properties is good.
A kind of preparation method of double-layer wear-resistant pipe, it is characterised in that comprise the following steps：
A, first induction heating equipment of medium frequency is preheated, 1 hour preheating time, temperature reaches 600-1000 DEG C, heating in medium frequency
Equipment is heated by induction coil；
B, by outer tube with inner tube to be arranged in the state of loosening, form semi-finished product, semi-finished product be set in and intermediate frequency
On the plug for the bending machine that firing equipment is engaged, the outer diameter dimension of plug one end is more than the outer diameter dimension of the other end, and half
Finished product is arranged by small size end, and plug can be arranged to bending according to different requirements or longitudinal interface is arranged to isosceles trapezoid；
C, semi-finished product are at the uniform velocity pushed away forward along plug using thrust machine, until the heating region of induction heating equipment of medium frequency is pushed into,
Push action cylinder is provided with thrust machine, thrust machine pushes away before being carried out by way of two semiaxis screens；
D, induction heating equipment of medium frequency heats to semi-finished product, meanwhile, thrust machine pushes away before continuing, and high-temperature heating coordinates plug
Structure inlays the quick gapless of inner and outer tubes, is fixed flange welding by bonding machine after semi-finished product cooling, you can.
For embodiment of above only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with this skill
The people of art understands content of the present utility model and is simultaneously carried out, and can not limit the scope of protection of the utility model with this, all
The equivalent change or modification done according to the utility model Spirit Essence, it should all cover in the scope of protection of the utility model.
Claims (6)
- A kind of 1. double-layer wear-resistant pipe, it is characterised in that：Including the outer tube for welding and for wear-resisting inner tube, said inner tube The inwall gapless of outer wall and outer tube is inlayed, and the outer tube and inner tube are disposed as bending, and its inside angle of bend is 6- 90 °, the both ends of the outer tube are welded with flange.
- 2. a kind of double-layer wear-resistant pipe according to claim 1, its characteristic are, the thickness of the outer tube is 2-6mm, It selects mild steel, and the thickness of inner tube is 6-12mm, and it selects steel alloy or manganese steel.
- 3. a kind of double-layer wear-resistant pipe according to claim 1, its characteristic are that the interior diameter of said inner tube is arranged to 95- 180mm。
- 4. a kind of double-layer wear-resistant pipe according to claim 1, its characteristic are, radian outside the bending section of the wear-resistant pipe Inner wall thickness size is more than the inner wall thickness size of interior radian, and its thickness difference is 1.5-3mm.
- A kind of 5. double-layer wear-resistant pipe, it is characterised in that：Including the outer tube for welding and for wear-resisting inner tube, said inner tube The inwall gapless of outer wall and outer tube is inlayed, and longitudinal interface of the outer tube and inner tube is disposed as isosceles trapezoid, the outer tube The outer diameter of one end is arranged to 108-194mm, and the outer diameter of the other end is arranged to 100mm or 180mm, and the two of the outer tube End is welded with flange.
- 6. a kind of double-layer wear-resistant pipe according to claim 5, its characteristic are, the thickness of said inner tube is 6- 12mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141773.2U CN207213451U (en) | 2016-10-20 | 2016-10-20 | A kind of double-layer wear-resistant pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141773.2U CN207213451U (en) | 2016-10-20 | 2016-10-20 | A kind of double-layer wear-resistant pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207213451U true CN207213451U (en) | 2018-04-10 |
Family
ID=61809065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621141773.2U Active CN207213451U (en) | 2016-10-20 | 2016-10-20 | A kind of double-layer wear-resistant pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN207213451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287091A (en) * | 2016-10-20 | 2017-01-04 | 许学华 | A kind of double-layer wear-resistant pipe and preparation method thereof |
-
2016
- 2016-10-20 CN CN201621141773.2U patent/CN207213451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287091A (en) * | 2016-10-20 | 2017-01-04 | 许学华 | A kind of double-layer wear-resistant pipe and preparation method thereof |
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