CN209631837U - A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing - Google Patents
A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing Download PDFInfo
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- CN209631837U CN209631837U CN201821875180.8U CN201821875180U CN209631837U CN 209631837 U CN209631837 U CN 209631837U CN 201821875180 U CN201821875180 U CN 201821875180U CN 209631837 U CN209631837 U CN 209631837U
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- plug
- spiral boss
- tubing
- boss
- cavity plate
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Abstract
Gathering apparatus and method are squeezed in the rotation that the utility model discloses a kind of for preparing Ultra-fine Grained tubing, belong to Metal Forming field.The band spiral boss Mandrel Rotating squeezes gathering apparatus and is mainly made of band spiral boss plug, crowded upsetting cavity plate, upper end cover, lower cover and gasket ring.Band spiral boss plug is equipped with cross-section spiral boss in axial middle position, and plug is placed in crowded upsetting cavity plate, and upper end cover, lower cover are connected by hexagon socket head cap screw with crowded upsetting cavity plate, forms near closed hollow ring with gasket ring, band spiral boss plug.This squeezes gathering apparatus and is bolted on rotary squeezing machine worktable by lower cover.Band spiral boss plug pushes, while being rotated around its own axis, and while making material generate extruding jumping-up, the generation of tube wall thickness direction is shear-deformable, can be with thinning microstructure, to obtain high performance pipe.This method once can produce drastic deformation, and grain refining efficiency is high, and this method is suitable for cold, warm, thermal deformation, and suitable material range is wide.
Description
Technical field
The utility model relates to metallo-plastic processing technique fields, specifically, being that one kind is used to prepare Ultra-fine Grained tubing
Rotation squeeze gathering apparatus.
Background technique
Tubing is widely used in machinery, chemical industry, aerospace, automobile and other industries field, and it is real for improving mechanical properties of tubular goods
The existing light-weighted important channel of component.Microstructure ultra-fining treatment is the important means for preparing high performance pipe, in recent years by each national literature
The attention of person.And severe plastic deformation is refiner material tissue most efficient method, the severe plastic deformation skill developed in recent years
Art mainly includes Equal Channel Angular Pressing (ECAP), high pressure torsion (HPT), reciprocating extrusion (CEC) etc..
By the retrieval discovery to existing technical literature, A. Babaei et al. is in " Progress in Natural
Science:Materials International " (2014,24(6): 623-630) on " the Tubular pure that delivers
copper grain refining by tube cyclic extrusion–compression (TCEC) as a severe
Tubing is described in a plastic deformation technique " text for the first time and back and forth squeezes upsetting technology.Tube billet is sealed
It between plug and cavity plate, is moved back and forth by the plug with boss, jumping-up after squeezing tubing first, being deformed by 4 passages will
Fine copper crystallite dimension is refined to 200-350nm by 45 μm, but the rolling pass that this method needs is more, and deformation efficiency is low.It is conventional past
It squeezes material in upsetting technology again to be upset again after predominantly axially squeezing, deformation occurs mainly in wall thickness direction, and tangential along tubing
Deformation it is small.Conventional back and forth crowded upsetting technology its tissue after multi-pass deformation along tubing circumferencial direction be still in it is band-like, tissue has
Certain directionality.
Further retrieval discovery, Chinese utility model patent grant number CN104801558B, utility model title: a kind of
The processing method of enhanced magnesium-aluminum lamellar composite tubing, this method uses band, and there are two the plugs of circle convex platform to prepare magnesium alloy
Multiple tube, promoting once can be achieved is plastically deformed twice, effectively refines grain structure, obtains with Good All-around Property
Enhanced magnesium-aluminum lamellar composite tubing.This method is compared with the plug for enclosing boss using traditional band one, although improving deformation
Degree, but deformation extent is still relatively low, needs reciprocal transformation, reduces production efficiency.
Further retrieval discovery, Chinese utility model patent grant number CN105537307B, utility model title: tubing
The continuous shear stress of preparation back and forth instead squeezes combined type processing unit (plant) and method.The advantages of this method is axially transported in variable cross-section pressure ram
While dynamic, tube wall can be made to generate by rotation working platform shear-deformable, but this shear-deformable relies primarily on tubing and squeeze
Friction between compression bar and extrusion cylinder.But it is easy to generate sliding, shadow for axialy symmetric part, between tubing and pressure ram and extrusion cylinder
Ring shear-deformable degree.Therefore, the Ultra-fine Grained tubing technology of preparing that one kind is efficient, effect is good is developed to be of great significance.
Utility model content
For the deficiency of existing background technique, the purpose of the utility model is to provide a kind of for preparing Ultra-fine Grained tubing
It rotates and squeezes gathering apparatus and method.The utility model uses the novel core rod with spiral boss structure, while pushing by plug
Rotation makes tubing not only generate extruding and Upsetting, while by the collective effect of helical structure boss and friction, making tubing
Inner surface is generated relative to its outer surface along tangential shear-deformable of tubing, accelerates crystal grain refinement, by control pressing speed and
Rotation speed may be implemented a time and squeeze accumulation large deformation, achievees the purpose that refine crystal grain, hence it is evident that improve production efficiency.
To achieve the above object, the technical solution that the utility model is taken is as follows:
A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing: including band spiral boss plug, upsetting cavity plate, upper end are squeezed
Lid, lower cover, gasket ring；The crowded upsetting cavity plate offers circular channel along vertical center, and channel diameter is identical as tube outer diameter, on
End is connected by hexagon socket head cap screw with upper end cover, and lower end is connected by hexagon socket head cap screw with lower cover；The band spiral boss core
Stick is arranged in crowded upsetting cavity plate, and band spiral boss plug periphery is provided with cross-section spiral shape boss, band spiral boss plug
Upper end be pierced by by the central circular through hole of upper end cover, the lower end with spiral boss plug is logical by the central circular of lower cover
Hole is pierced by, and realizes the positioning with spiral boss plug, the upper end with spiral boss plug is by rotatable plug fixing seat and squeezes
Press is connected；The gasket ring is arranged in the circular channel for squeezing upsetting cavity plate, and covers in the upper end bar portion with spiral boss plug, pad
The lower end face contact of the upper end face contact of ring lower end and tubing, gasket ring upper end and upper end cover；The lower cover is bolted
On squeezing machine worktable.
Further improvement of the utility model, squeezing upsetting cavity plate is whole annular shape, and circular channel inner surface needs roughened
Processing.
Further improvement of the utility model, band spiral boss plug longitudinal direction is intermediate to be provided with cross-section spiral shape boss knot
Structure, spiral boss and plug bar portion junction are all made of arc transition, and spiral number of turns are 1-3 circle, and helix angle is 5 ° -25 °, spiral shell
Revolve the 10%-60% that boss height is the tube wall thickness.
A kind of method for preparing Ultra-fine Grained tubing that the utility model discloses uses above-mentioned band spiral boss plug
It rotates and squeezes gathering apparatus, include the following steps:
Step is 1.: treating deformed pipe material and is pre-processed (including annealing, solid solution, spheroidising etc.), to reduce its deformation
Drag improves plasticity；
Step is 2.: pipe inner and outer surfaces are handled, descaling, and check internal and external walls with spiral boss core
The mated condition on stick surface and crowded upsetting cavity plate vias inner walls, then cleans tubing；
Step is 3.: being lubricated processing to internal surface of pipe；
Step is 4.: tubing being put into the circular channel of crowded upsetting cavity plate, will penetrate from top to bottom pipe with spiral boss plug
Material, gasket ring is inserted in from top to bottom band spiral boss plug, will be inserted in respectively with spiral boss plug upper and lower ends upper end cover and
Lower cover is tightened together lower cover with crowded upsetting cavity plate by hexagon socket head cap screw, by upper end cover and is squeezed by hexagon socket head cap screw
Upsetting cavity plate is connected and is pre-tightened；
Step is 5.: being fixed on lower cover by bolt and squeezes on machine worktable, cap upper surface places an annulus in upper end
Shape cushion block, extruder press annular cushion block from top to bottom, and annular cushion block successively pushes upper end cover, gasket ring and with spiral boss core
Stick makes spiral boss squeeze into tubing and makes it full of the gap between spiral boss, fastens hexagon socket head cap screw, remove circular ring shape pad
Block will be connected and fasten with plug fixing seat with spiral boss plug；
Step is 6.: starting rotary squeezing machine, and band spiral boss plug rotates about the axis thereof while pushing, with band spiral prominence
Platform plug constantly moves down, and makes pipe deformations, until spiral boss is close to the upper surface of lower cover, squeezing upsetting process terminates；
Step is 7.: plug fixing seat being separated with spiral boss plug, removes the bolt for squeezing machine worktable and upper end
The hexagon socket head cap screw of lid, lower cover takes out band spiral boss plug from crowded upsetting cavity plate, removes gasket ring, will be with spiral boss core
Stick is released from tubing, can be obtained Ultra-fine Grained tubing.
Further, the pressing speed with spiral boss plug is 0.05mm/s-10mm/s, rotation speed 0.1
Revs/min -10 revs/min.
When pipe material is not suitable for or can not carry out room temperature processing, heating mantle can be set in crowded upsetting cavity plate outer wall, it is right
Tubing and crowded gathering apparatus carry out whole heating.
The utility model has the beneficial effects that compared with prior art, the utility model have it is following the utility model has the advantages that
1, the utility model use with spiral boss plug replace traditional circular boss plug, push while into
Row rotation, not only rely on generated between friction-driven tubing inside and outside wall it is shear-deformable, spiral boss structure rotate to be shearing become
The generation of shape provides powerful driving force, accelerates structure refinement process, improves structure refinement efficiency.
2, primary to squeeze by adjusting the height of helical structure boss, structure, helix angle, pressing speed, rotation speed
Sufficiently large strain may be obtained, refiner material tissue greatly improves production efficiency.
3, the mould structure is simple, and by configuring heating device and temperature-controlling system outside crowded upsetting cavity plate, material may be implemented
Cold, warm, thermal deformation, expand the range of suitable material.
Detailed description of the invention
Fig. 1 is that the utility model discloses the half section structure diagram for being used to prepare the crowded gathering apparatus of rotation of Ultra-fine Grained tubing.
Fig. 2 is band spiral boss mandrel structure schematic diagram in Fig. 1.
In figure, 1- plug fixing seat, 2- is squeezed with spiral boss plug, 3- gasket ring, 4- hexagon socket head cap screw, 5- upper end cover, 6-
Upsetting cavity plate, 7- tubing, 8- hexagon socket head cap screw, 9- lower cover, 10- squeeze machine worktable, 11- bolt
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment: as depicted in figs. 1 and 2, a kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing, including band spiral
Boss plug 2 squeezes upsetting cavity plate 6, upper end cover 5, lower cover 9, gasket ring 3；The crowded upsetting cavity plate 6 offers round logical along vertical center
Road, the circular channel diameter is identical as 7 outer diameter of tubing, and upper end is connected by hexagon socket head cap screw 4 with the upper end cover 5, and lower end is logical
Hexagon socket head cap screw 8 is crossed to be connected with the lower cover 9；The band spiral boss plug 2 is arranged in the crowded upsetting cavity plate 6, described
Band 2 periphery of spiral boss plug is provided with cross-section spiral shape boss, and the upper end with spiral boss plug 2 passes through described
The central circular through hole of upper end cover 5 is pierced by, the central circular that the lower end with spiral boss plug 2 passes through the lower cover 9
Through-hole, which is pierced by, realizes the positioning with spiral boss plug 2, and the upper end with spiral boss plug 2 is fixed by rotatable plug
Seat 1 is connected with extruder, and the gasket ring 3 is arranged in the circular channel of the crowded upsetting cavity plate 6, and covers in the band spiral boss
The upper end bar portion of plug 2, the upper end face contact of 3 lower end of gasket ring and the tubing 7,3 upper end of gasket ring and the upper end
The lower end face contact of lid 5, the lower cover 9 are fixed on by bolt 11 and are squeezed on machine worktable 10.
In the present embodiment, the crowded upsetting cavity plate 6 is whole circular, and circular channel inner surface needs roughened place
Reason；Cross-section spiral shape boss structure is provided among the band spiral boss plug 2 is longitudinal, spiral boss and plug bar portion connect
The place of connecing is all made of arc transition, and spiral number of turns are 1-3 circle, and helix angle is 5 ° -25 °, and the spiral boss height is the pipe
The 10%-60% of 7 wall thickness of material.
The device for preparing Ultra-fine Grained tubing disclosed using above-described embodiment is used to prepare the specific method of Ultra-fine Grained tubing
It is as follows:
Step is 1.: treating deformed pipe material 7 and is pre-processed, which includes annealing, solid solution or spheroidising etc.；
Step is 2.: 7 surfaces externally and internally of tubing is handled, descaling, and check internal and external walls with spiral boss
The mated condition on 2 surface of plug and crowded 6 vias inner walls of upsetting cavity plate, then cleans tubing 7；
Step is 3.: being lubricated processing to 7 inner surface of tubing；
Step is 4.: tubing 7 being put into the circular channel of crowded upsetting cavity plate 6, will be penetrated from top to bottom with spiral boss plug 2
Gasket ring 3 is inserted in band spiral boss plug 2 from top to bottom, will be inserted in respectively with 2 upper and lower ends of spiral boss plug by tubing 7
Lower cover 9 is tightened together with crowded upsetting cavity plate 6 by hexagon socket head cap screw 8, passes through hexagon socket head cap screw 4 by end cap 5 and lower cover 9
Upper end cover 5 is connect and pre-tightened with crowded upsetting cavity plate 6；
Step is 5.: being fixed on lower cover 9 by bolt 11 and squeezes on machine worktable 10, places in 5 upper surface of upper end cover
One annular cushion block, extruder press annular cushion block from top to bottom, and annular cushion block successively pushes upper end cover 5, gasket ring 3 and with spiral shell
Boss plug 2 is revolved, spiral boss is made to squeeze into tubing 7 and makes it full of the gap between spiral boss, fastens hexagon socket head cap screw 4,
Annular cushion block is removed, will be connected and fasten with plug fixing seat 1 with spiral boss plug 2；
Step is 6.: starting rotary squeezing machine rotates about the axis thereof band spiral boss plug 2 while pushing, with band spiral shell
Rotation boss plug 2 constantly moves down, and tubing 7 deforms, until spiral boss is close to the upper surface of lower cover 9, squeezing upsetting process terminates；
Step is 7.: plug fixing seat 1 is separated with spiral boss plug 2, removes bolt 11, then remove in hexagonal spiral shell
Bolt 4 and 8 takes out band spiral boss plug 2 from crowded upsetting cavity plate 6, removes gasket ring 3, will be with spiral boss plug 2 from tubing 7
It releases, can be obtained Ultra-fine Grained tubing.
Further, the pressing speed with spiral boss plug 2 is 0.05mm/s-10mm/s, rotation speed 0.1
Revs/min -10 revs/min.
It is the example emulated according to the device and method of the utility model with DEFORM below.
Example 1: 7 internal diameter 25mm of tubing, tubing 7 wall thickness 5mm, material 1100Al, 2 helix angle of spiral boss plug are
8 °, boss height 1.3mm, spiral boss circle number encloses for 1, plug pressing speed 1mm/s, and 48 revs/min of Mandrel Rotating speed, core
It is downward that stick depresses direction.
Example 2: 7 internal diameter 25mm of tubing, tubing 7 wall thickness 5mm, material 1100Al, 2 helix angle of spiral boss plug are
8 °, boss height 1.3mm, spiral boss circle number encloses for 1, plug pressing speed 1mm/s, and 96 revs/min of Mandrel Rotating speed, core
It is downward that stick depresses direction.
It is very big that above example illustrates that device and method a time that the utility model is proposed can generate in tubing
Plastic deformation, deformation efficiency are significantly improved compared with traditional piping material reciprocating extrusion technique.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (2)
1. it is a kind of for prepare Ultra-fine Grained tubing rotation squeeze gathering apparatus, it is characterised in that: including band spiral boss plug (2),
Squeeze upsetting cavity plate (6), upper end cover (5), lower cover (9), gasket ring (3)；The crowded upsetting cavity plate (6) offers round logical along vertical center
Road, the circular channel diameter is identical as tubing (7) outer diameter, and upper end is connected by hexagon socket head cap screw (4) with the upper end cover (5),
Lower end is connected by hexagon socket head cap screw (8) with the lower cover (9)；The band spiral boss plug (2) is arranged in the crowded upsetting
In cavity plate (6), band spiral boss plug (2) periphery is provided with cross-section spiral shape boss, the band spiral boss core
The upper end of stick (2) is pierced by by the central circular through hole of the upper end cover (5), and the lower end of the band spiral boss plug (2) is logical
The central circular through hole for crossing the lower cover (9), which is pierced by, realizes the positioning with spiral boss plug (2), the band spiral boss core
The upper end of stick (2) is connected by rotatable plug fixing seat (1) with extruder, and the gasket ring (3) is arranged in the crowded upsetting cavity plate
(6) in circular channel, and the upper end bar portion in the band spiral boss plug (2) is covered, gasket ring (3) lower end and the pipe
The upper end face contact of material (7), the lower end face contact of gasket ring (3) upper end and the upper end cover (5), the lower cover (9) are logical
It crosses bolt (11) to be fixed in extruding machine worktable (10), band spiral boss plug (2) longitudinal direction is intermediate to be provided with cross-section
Spiral shape boss structure, spiral boss and plug bar portion junction are all made of arc transition, and spiral number of turns are 1-3 circle, spiral liter
Angle is 5 ° -25 °, and the spiral boss height is the 10%-60% of the tubing (7) wall thickness.
2. gathering apparatus is squeezed in the rotation according to claim 1 for being used to prepare Ultra-fine Grained tubing, it is characterised in that: the crowded upsetting
Cavity plate (6) is whole annular shape, and circular channel inner surface needs roughened processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875180.8U CN209631837U (en) | 2018-11-14 | 2018-11-14 | A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875180.8U CN209631837U (en) | 2018-11-14 | 2018-11-14 | A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209631837U true CN209631837U (en) | 2019-11-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821875180.8U Withdrawn - After Issue CN209631837U (en) | 2018-11-14 | 2018-11-14 | A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209631837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290383A (en) * | 2018-11-14 | 2019-02-01 | 江苏科技大学 | A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing and method |
-
2018
- 2018-11-14 CN CN201821875180.8U patent/CN209631837U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290383A (en) * | 2018-11-14 | 2019-02-01 | 江苏科技大学 | A kind of crowded gathering apparatus of rotation for preparing Ultra-fine Grained tubing and method |
| CN109290383B (en) * | 2018-11-14 | 2023-09-26 | 江苏科技大学 | Rotary extrusion upsetting device and method for preparing superfine crystal tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20230926 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |