CN207655641U - A kind of compound top of effective water cooling of small-bore boiler - Google Patents
A kind of compound top of effective water cooling of small-bore boiler Download PDFInfo
- Publication number
- CN207655641U CN207655641U CN201721834028.0U CN201721834028U CN207655641U CN 207655641 U CN207655641 U CN 207655641U CN 201721834028 U CN201721834028 U CN 201721834028U CN 207655641 U CN207655641 U CN 207655641U
- Authority
- CN
- China
- Prior art keywords
- cone section
- busbar
- water cooling
- inclination angle
- rolloff
- 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.)
- Active
Links
Landscapes
- Metal Extraction Processes (AREA)
Abstract
The utility model discloses a kind of compound tops of small-bore effective water cooling of boiler, including coming directly towards ontology, ontology is come directly towards in bullet-headed, it sets gradually along the axis direction opposite with perforation direction as head and matrix, the head is entity structure, and the cross section of any position is circle in an axial direction, and described matrix is hollow structure, the cross section of its any position in an axial direction is circular ring shape, and the ring width of the annulus meets following formula：W=0.5D‑24.5；Wherein, W is ring width；D is maximum annulus outer diameter, 70mm >=D >=61mm.The compound top of the effective water cooling of small-bore boiler disclosed by the utility model can not only ensure that cooling is enough, but also top will not be made to crack, and improve product quality.
Description
Technical field
The utility model relates to tubing perforation field, and in particular to a kind of compound top of small-bore effective water cooling of boiler.
Background technology
Mannesmann piercing perforates solid pipe billet at hollow hollow billet, and the flow of metal of whole process is concentrated mainly on top
On.Top work under high temperature, hyperbaric environment, it is easy to wear, steel bonding situations such as, the top wall thickness used originally is thicker, is
10mm, cooling are not enough susceptible to steel bonding, table in hollow forging can be caused crude（Small rut）By aggravating after subtracting, behind be cold worked
Deformation can not be eliminated, and can cause product inspection flaw detection alarm, pipe is caused to scrap.
Invention content
The purpose of this utility model is to provide a kind of compound top of effective water cooling of small-bore boiler, can both ensure cooling foot
It is enough, and top will not be made to crack, improve product quality.
1. in order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of effective water cooling of small-bore boiler is multiple
Top, including top ontology are closed, the top ontology is in bullet-headed, is set successively along the axis direction opposite with perforation direction
It is set to head and matrix, the head is entity structure, and the cross section of any position is circle in an axial direction, during described matrix is
Hollow structure, the cross section of any position is circular ring shape in an axial direction, and the ring width of the annulus meets following formula：
W=0.5D-24.5；
Wherein, W is ring width；
D is maximum annulus outer diameter, 70mm >=D >=61mm.
In the prior art, ring width=（Outer diameter-M42-2*3 (depth of thread)）/2；
After optimization, ring width=（Outer diameter-M42-2*3 (depth of thread)）/2-0.5；
M42 is the outlet screw thread of matrix hollow structure.
By taking the tops φ 68 as an example：
Ring width in the prior art：（68-42-2*3）/2=10；
Ring width after optimization：（68-42-2*3）/2-0.5=9.5.
In above-mentioned technical proposal, the top ontology along with the opposite axis direction in perforation direction set gradually for nose,
Drawing cone section, rolloff cone section and inverted cone section, the busbar inclination angle of the nose, the busbar inclination angle of the Drawing cone section and described
The busbar inclination angle of rolloff cone section is successively decreased successively, and the busbar inclination angle of the rolloff cone section is equal to roll exit inclination angle, the inverted cone section
Busbar inclination angle be less than roll exit inclination angle.
In above-mentioned technical proposal, the busbar inclination angle of the nose is 4-8 °, and the busbar inclination angle of the Drawing cone section is 3-6 °,
The busbar inclination angle of the rolloff cone section is 3-6 °, and the busbar inclination angle of the inverted cone section is 0 °.
In above-mentioned technical proposal, the head and the matrix leading portion to connect with it constitute the nose, described matrix back segment
Constitute the Drawing cone section, rolloff cone section and inverted cone section.
In above-mentioned technical proposal, the head is molybdenum alloy head.
In above-mentioned technical proposal, described matrix is hot die steel H13 matrixes.
In above-mentioned technical proposal, the busbar of the nose is arc shaped.
In above-mentioned technical proposal, the busbar of the Drawing cone section is arc shaped.
In above-mentioned technical proposal, the busbar of the rolloff cone section is linear.
In above-mentioned technical proposal, the busbar of the inverted cone section is linear.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
The compound top of the disclosed effective water cooling of small-bore boiler can not only ensure that cooling is enough, but also top will not be made to crack, and improve production
Quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the compound top of the effective water cooling of small-bore boiler disclosed by the utility model.
Wherein：11, head；12, matrix；21, nose；22, Drawing cone section；23, rolloff cone section；24, inverted cone section.
Specific implementation mode
The utility model is further described in conjunction with accompanying drawings and embodiments：
Referring to Fig. 1, as shown in legend therein, a kind of compound top of small-bore effective water cooling of boiler, including top ontology,
It is in bullet-headed to come directly towards ontology, is set gradually as head 11 and matrix 12, head along the axis direction opposite with perforation direction
11 be entity structure, and the cross section of any position is circle in an axial direction, and matrix 12 is hollow structure, in an axial direction any position
Cross section be circular ring shape, the ring width of the annulus meets following formula：
W=0.5D-24.5；
Wherein, W is ring width；
D is maximum annulus outer diameter, 70mm >=D >=61mm.
In the prior art, ring width=（Outer diameter-M42-2*3 (depth of thread)）/2；
After optimization, ring width=（Outer diameter-M42-2*3 (depth of thread)）/2-0.5；
M42 is the outlet screw thread of matrix hollow structure.
By taking the tops φ 68 as an example：
Ring width in the prior art：（68-42-2*3）/2=10mm；
Ring width after optimization：（68-42-2*3）/2-0.5=9.5mm.
Top wall is too thick to be caused to come directly towards surface steel bonding, too thin then cooling too fast, caused top to be cracked, passed through examination repeatedly
Demonstration is tested, finds that 0.5mm, i.e. 9.5mm are thinned on the basis of original top wall thickness, can not only ensure that cooling is enough, but also will not
So that top is cracked, improves product quality.
In a kind of embodiment, top ontology is set gradually along the axis direction opposite with perforation direction as nose 21, work
Make cone section 22, rolloff cone section 23 and inverted cone section 24, the busbar inclination angle of nose 21, the busbar inclination angle of Drawing cone section 22 and rolloff
The busbar inclination angle of cone section 23 is successively decreased successively, and the busbar inclination angle of rolloff cone section 23 is equal to roll exit inclination angle, the busbar of inverted cone section 24
Inclination angle is less than roll exit inclination angle.Nose 21 is mainly used to improve metal flow process, makes the Drawing cone section being close to nose
22 not exclusively contact with metal, so that top burning degree is reduced, and can play cooling effect, to improve top wearability；Work
Cone section 22 is mainly used to complete the molding of hollow billet wall, thus flow of metal is mainly completed in this cone；It is one oblique that cone section 23 is rolled in exhibition
Cone, effect is to make have uniform wall thickness in hollow billet length, and exhibition rolls element of a cone inclination angle and is equal to roll exit cone angle, thus
Deformation on this region is very little, mainly plays equal wall；Inverted cone section 24 is used for that hollow billet inner surface is prevented to be scratched（Gold
When category leaves top）It can be free to exit top with guarantee hollow billet tail end.
In a kind of embodiment, the busbar inclination angle of nose 21 is 4-8 °, for example, 4 °, 5 °, 6 °, 7 °, 8 °, Drawing cone section 22
Busbar inclination angle be 3-6 °, for example, 3 °, 4 °, 5 °, 6 °, the busbar inclination angle of rolloff cone section 23 is 3-6 °, for example, 3 °, 4 °, 5 °,
6 °, the busbar inclination angle of inverted cone section 24 is 0 °.
In a kind of embodiment, head 11 and 12 leading portion of matrix to connect with it constitute nose 21, and 12 back segment of matrix is constituted
Drawing cone section 22, rolloff cone section 23 and inverted cone section 24.
In a kind of embodiment, head 11 is molybdenum alloy head.
In a kind of embodiment, matrix 12 is hot die steel H13 matrixes.
In a kind of embodiment, the busbar of nose 21 is arc shaped.
In a kind of embodiment, the busbar of Drawing cone section 22 is arc shaped.
In a kind of embodiment, the busbar of rolloff cone section 23 is linear.
In a kind of embodiment, the busbar of inverted cone section 24 is linear.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (10)
1. a kind of compound top of effective water cooling of small-bore boiler, including top ontology, the top ontology are in bullet-headed, edge
The axis direction opposite with perforation direction sets gradually as head（11）And matrix（12）, which is characterized in that the head（11）
For entity structure, the cross section of any position is circle, described matrix in an axial direction（12）It is arbitrary in an axial direction for hollow structure
The cross section of position is circular ring shape, and the ring width of the annulus meets following formula：
W=0.5D-24.5；
Wherein, W is ring width；
D is maximum annulus outer diameter, 70mm >=D >=61mm.
2. the compound top of water cooling according to claim 1, which is characterized in that the top ontology is along opposite with perforation direction
Axis direction set gradually as nose（21）, Drawing cone section（22）, rolloff cone section（23）And inverted cone section（24）, the nose
（21）Busbar inclination angle, the Drawing cone section（22）Busbar inclination angle and the rolloff cone section（23）Busbar inclination angle pass successively
Subtract, the rolloff cone section（23）Busbar inclination angle be equal to roll exit inclination angle, the inverted cone section（24）Busbar inclination angle be less than roll
Roller exit-angle incidence.
3. the compound top of water cooling according to claim 2, which is characterized in that the nose（21）Busbar inclination angle be 4-
8 °, the Drawing cone section（22）Busbar inclination angle be 3-6 °, the rolloff cone section（23）Busbar inclination angle be 3-6 °, the inverted cone
Section（24）Busbar inclination angle be 0 °.
4. the compound top of water cooling according to claim 2, which is characterized in that the head（11）With the matrix to connect with it
（12）Leading portion constitutes the nose, described matrix（12）Back segment constitutes the Drawing cone section, rolloff cone section and inverted cone section.
5. the compound top of water cooling according to claim 1, which is characterized in that the head（11）For molybdenum alloy head.
6. the compound top of water cooling according to claim 1, which is characterized in that described matrix（12）For hot die steel H13
Matrix.
7. the compound top of water cooling according to claim 2, which is characterized in that the nose（21）Busbar be arc shaped.
8. the compound top of water cooling according to claim 2, which is characterized in that the Drawing cone section（22）Busbar be camber line
Shape.
9. the compound top of water cooling according to claim 2, which is characterized in that the rolloff cone section（23）Busbar be straight line
Shape.
10. the compound top of water cooling according to claim 2, which is characterized in that the inverted cone section（24）Busbar be straight line
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721834028.0U CN207655641U (en) | 2017-12-25 | 2017-12-25 | A kind of compound top of effective water cooling of small-bore boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721834028.0U CN207655641U (en) | 2017-12-25 | 2017-12-25 | A kind of compound top of effective water cooling of small-bore boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655641U true CN207655641U (en) | 2018-07-27 |
Family
ID=62943163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721834028.0U Active CN207655641U (en) | 2017-12-25 | 2017-12-25 | A kind of compound top of effective water cooling of small-bore boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207655641U (en) |
-
2017
- 2017-12-25 CN CN201721834028.0U patent/CN207655641U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106938285B (en) | A kind of manufacturing method of stainless steel square tube | |
| JP4893858B2 (en) | Manufacturing method of seamless metal pipe by cold rolling | |
| CN104232869A (en) | Hot-processing production technology of bearing steel pipe | |
| Ding et al. | New rotary piercing process for an AZ31 magnesium alloy seamless tube | |
| CN103658225B (en) | A kind of non-ferrous metal has seam elbow cooling formation technic | |
| CN106345814A (en) | A production method for spiral welded magnesium alloy seamless tube | |
| CN104624713A (en) | Fabrication method of small precise thin-wall seamless titanium alloy tube | |
| CN102615138A (en) | Method for manufacturing titanium pipe | |
| CN207655641U (en) | A kind of compound top of effective water cooling of small-bore boiler | |
| CN103981422B (en) | 825 alloy pipe big distortion techniques | |
| CN107008767A (en) | A kind of Ni-based less-deformable alloy pipe joint hot-working method | |
| JP4506563B2 (en) | Cold manufacturing method for ultra-thin seamless metal tubes | |
| CN106238500A (en) | A kind of production technology rolling monolithic finned tube seamless steel pipe | |
| CN108213865A (en) | A kind of tensile strength>The manufacturing method of the titanium alloy seamless tube blank of 400MPa | |
| CN108246829A (en) | A kind of manufacturing method of TA18 titanium alloys seamless tube blank | |
| RU2008115395A (en) | METHOD FOR PRODUCING SEAMLESS HOT DEFORMED PIPES OF LARGE AND MEDIUM DIAMETERS IN PIPELINE PLANTS WITH PILGRIM MILLS | |
| CN209318432U (en) | A kind of hot rolling cone-shaped roll | |
| GB380000A (en) | Improvements relating to the manufacture of seamless tubing | |
| CA2941344C (en) | Method for producing seamless metal pipe | |
| CN108787753A (en) | Mannesmann piercing mill comes directly towards and Mannesmann piercing mill | |
| CN207606102U (en) | A kind of gas cylinder tube perforation plug | |
| CN207076770U (en) | One kind combination plug | |
| CN206701942U (en) | A kind of punch is come directly towards with water cooling | |
| BR112017015320B1 (en) | PLUG PRODUCTION METHOD | |
| CN203750995U (en) | Ejector head of three-roll piercer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |