CN104057059A - Semi-solid extrusion filling and electromagnetic densification upsetting device of bearing bush - Google Patents
Semi-solid extrusion filling and electromagnetic densification upsetting device of bearing bush Download PDFInfo
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- CN104057059A CN104057059A CN201410289430.XA CN201410289430A CN104057059A CN 104057059 A CN104057059 A CN 104057059A CN 201410289430 A CN201410289430 A CN 201410289430A CN 104057059 A CN104057059 A CN 104057059A
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Abstract
The invention relates to a semi-solid extrusion filling and electromagnetic densification upsetting device of a bearing bush. The semi-solid extrusion filling and electromagnetic densification upsetting device comprises a first fixed die, wherein a steel sleeve is arranged in an inner hole of the first fixed die, a stopper rod is arranged in the steel sleeve, a second fixed die is fixedly connected to the upper side of the first fixed die, a movable die is arranged on the upper side of the second fixed die, a spindle is fixedly connected to the lower side of the movable die, a first coil and a filling material are embedded into the upper side of the inner hole of the first fixed die, and a second coil and a filling material are embedded into the lower end of the movable die. According to the semi-solid extrusion filling and electromagnetic densification upsetting device, the characteristics of good flowability, low forming force and the like of semi-solid materials in the forming process are utilized, so the defects of air pumping, sand washing and the like in the extrusion filling process can be prevented, and additionally, an electromagnetic forming technique is introduced, and electromagnetic force is utilized to perform electromagnetic densification upsetting on an extrusion filling piece, so the performance of a bearing bush forming piece is improved.
Description
Technical field
The invention belongs to semi-solid metal forming technical field, type and the fine and close upsetting apparatus of electromagnetism are filled in the semisolid extruding that relates in particular to a kind of bearing shell.
Background technology
So-called semi-solid processing is shaped, be exactly to the temperature between solidus and liquidus curve by METAL HEATING PROCESS, insulation certain hour, to obtain spherical or subglobose crystal grain, and then it is carried out to die casting, extruding or die-forging forming, be a kind of manufacturing process between casting (pure liquid state) and forging and stamping (pure solid-state).Spherical or subglobose semi solid slurry, have good fluidity, plastic force low and be shaped after the advantages such as part performance is good, therefore this technique is subject to increasing attention.
Along with comprehensive fast development of Chinese society economy, transportation is also in develop rapidly, automobile engine day by day at a high speed, high-power, lightweight and environment friendly and pollution-free future development, bearing shell is as one of strength member of automobile engine, and the quality of its performance directly affects speed, bearing capacity, functional reliability and the service life of engine.Therefore, people are more and more higher to the performance requirement of bearing shell.
Present stage, automobile engine bearing mainly adopted copper base and acieral two class bush materials to manufacture, wherein, aluminium bearing material has good thermal conductivity, wearability, seizure resistance, wearability and fatigue strength, and proportion is lighter, but its low strength, for this deficiency, adopt at present more way to be: acieral to be compounded in and in steel substrate, to form steel back aluminium ply-metal by certain method, to make up the shortcoming of acieral intensity and hardness deficiency, then, this steel back aluminium ply-metal volume is welded into cylinder, the machined of carrying out bearing shell is shaped.The method can well make up the shortcoming of acieral intensity and hardness deficiency, but still have that acieral wears no resistance, the interface bond strength of composite plate is wayward, roll of steel plate is welded into not high, the follow-up machined difficulty of weld strength after cylinder and whole bearing shell manufacturing process complexity, high in cost of production shortcoming.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of semisolid extruding of bearing shell to fill type and the fine and close upsetting apparatus of electromagnetism, the technique that the semi-solid blank preparing can be filled to type and electromagnetism densification jumping-up by extruding is prepared the bearing shell of high comprehensive performance.
In order to achieve the above object, the present invention takes following technical scheme:
Type and the fine and close upsetting apparatus of electromagnetism are filled in a kind of semisolid extruding of bearing shell, comprise the first cover half 3, the endoporus of the first cover half 3 is provided with steel bushing 2, in steel bushing 2, be provided with stopper rod 1, the first cover half 3 upsides are fixed with the second cover half 4, the second cover half 4 upsides are provided with dynamic model 5, dynamic model 5 downsides are fixed with mandrel 7, bearing shell after the central bore that mandrel 7 can stretch into the second cover half 4 is filled type and completed fills in type part 9, the first cover half 3 endoporus upsides are embedded with the first coil 10 and packing material 6, and the junction of dynamic model 5 lower ends and mandrel 7 is embedded with the second coil 8 and packing material 6.
Type and the fine and close upsetting apparatus of electromagnetism are filled in the semisolid extruding of described a kind of bearing shell, its method of work is: this device is being carried out on the basis of preheating, semisolid bush material 11 is put into the die cavity that stopper rod 1 and steel bushing 2 form, put down dynamic model 5 simultaneously and carry out matched moulds; Promoting stopper rod 1 pushes and fills type semisolid bush material 11; After filling type and completing, carry out pressurize, By Impulsive Current is provided to the first coil 10 and the second coil 8 simultaneously, according to the law of electromagnetic induction, fill on type part 9 and will produce the induced-current contrary with the second coil 8 with the first coil 10 at bearing shell, so fill between type part 9 at the first coil 10 and bearing shell, the second coil 8 and bearing shell fill between type part 9 and will produce intensive magnetic induction line, bearing shell fill type part 9 will be subject to brute force and bi-directional electromagnetic power squeezing action at a high speed, under the squeezing action of this bi-directional electromagnetic power, bearing shell fills type part 9 and will produce the trend of jumping-up densification.
With respect to prior art, the present invention has the following advantages: semi-solid material has the features such as good fluidity, plastic force are low, is easy to be shaped in extrusion casint process, can reduce in cavity filling process and produce and wrap up in the defect such as gas, sand washing; Meanwhile, introduce electromagnetic forming technique, utilize electromagnetic force further extruding to be filled to type part and carry out feeding, to reduce the generation of shrinkage porosite shrinkage cavity in bearing shell drip molding.Utilize this device can prepare the bearing shell of high comprehensive performance, have advantages of that technical process is simple, cost is low, efficiency is high.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic diagram that the present invention carries out the fine and close jumping-up of electromagnetism.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
With reference to Fig. 1, type and the fine and close upsetting apparatus of electromagnetism are filled in a kind of semisolid extruding of bearing shell, comprise the first cover half 3, the endoporus of the first cover half 3 is provided with steel bushing 2, in steel bushing 2, be provided with stopper rod 1, the first cover half 3 upsides are fixed with the second cover half 4, the second cover half 4 upsides are provided with dynamic model 5, dynamic model 5 downsides are fixed with mandrel 7, bearing shell after the central bore that mandrel 7 can stretch into the second cover half 4 is filled type and completed fills in type part 9, the first cover half 3 endoporus upsides are embedded with the first coil 10 and packing material 6, and the junction of dynamic model 5 lower ends and mandrel 7 is embedded with the second coil 8 and packing material 6.
See figures.1.and.2, type and the fine and close upsetting apparatus of electromagnetism are filled in the semisolid extruding of described a kind of bearing shell, its method of work is: this device is being carried out on the basis of preheating, semisolid bush material 11 is put into the die cavity that stopper rod 1 and steel bushing 2 form, putting down dynamic model 5 simultaneously and carry out matched moulds, promoting stopper rod 1 pushes and fills type semisolid bush material 11, after filling type and completing, carry out pressurize, By Impulsive Current is provided to the first coil 10 and the second coil 8 simultaneously, according to the law of electromagnetic induction, fill on type part 9 and will produce the induced-current contrary with the second coil 8 with the first coil 10 at bearing shell, so fill between type part 9 at the first coil 10 and bearing shell, the second coil 8 and bearing shell fill between type part 9 and will produce intensive magnetic induction line, bearing shell fill type part 9 will be subject to brute force and bi-directional electromagnetic power squeezing action at a high speed, under the squeezing action of this bi-directional electromagnetic power, bearing shell fills type part 9 and will produce the trend of jumping-up densification, thereby the combination property of bearing shell is further enhanced.
Claims (2)
1. type and the fine and close upsetting apparatus of electromagnetism are filled in the extruding of the semisolid of a bearing shell, comprise the first cover half (3), it is characterized in that: the endoporus of the first cover half (3) is provided with steel bushing (2), in steel bushing (2), be provided with stopper rod (1), the first cover half (3) upside is fixed with the second cover half (4), the second cover half (4) upside is provided with dynamic model (5), dynamic model (5) downside is fixed with mandrel (7), bearing shell after the central bore that mandrel (7) can stretch into the second cover half (4) is filled type and completed fills in type part (9), the first cover half (3) endoporus upside is embedded with the first coil (10) and packing material (6), the junction of dynamic model (5) lower end and mandrel (7) is embedded with the second coil (8) and packing material (6).
2. type and the fine and close upsetting apparatus of electromagnetism are filled in the extruding of the semisolid of a kind of bearing shell according to claim 1, it is characterized in that, its method of work is: this device is being carried out on the basis of preheating, the die cavity of semisolid bush material (11) being put into stopper rod (1) and steel bushing (2) composition, puts down dynamic model (5) simultaneously and carries out matched moulds, promoting stopper rod (1) pushes and fills type semisolid bush material (11), after filling type and completing, carry out pressurize, By Impulsive Current is provided to the first coil (10) and the second coil (8) simultaneously, according to the law of electromagnetic induction, fill type part (9) at bearing shell and above will produce the induced-current contrary with the second coil (8) with the first coil (10), so fill between type part (9) at the first coil (10) and bearing shell, the second coil (8) and bearing shell fill between type part (9) and will produce intensive magnetic induction line, bearing shell fill type part (9) will be subject to brute force and bi-directional electromagnetic power squeezing action at a high speed, under the squeezing action of this bi-directional electromagnetic power, bearing shell fills type part (9) and will produce the trend of jumping-up densification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289430.XA CN104057059B (en) | 2014-06-25 | 2014-06-25 | A kind of semi-solid state extrusion of bearing shell fills type and the fine and close upsetting apparatus of electromagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289430.XA CN104057059B (en) | 2014-06-25 | 2014-06-25 | A kind of semi-solid state extrusion of bearing shell fills type and the fine and close upsetting apparatus of electromagnetism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104057059A true CN104057059A (en) | 2014-09-24 |
| CN104057059B CN104057059B (en) | 2016-04-13 |
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| CN201410289430.XA Active CN104057059B (en) | 2014-06-25 | 2014-06-25 | A kind of semi-solid state extrusion of bearing shell fills type and the fine and close upsetting apparatus of electromagnetism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575233A (en) * | 1968-10-07 | 1971-04-20 | Joachim Mahle | Diecasting mold |
| JPH05220798A (en) * | 1992-02-17 | 1993-08-31 | Toshiba Mach Co Ltd | Mold clamping device for injection molding machine |
| US5352394A (en) * | 1990-11-30 | 1994-10-04 | Toshiba Kikai Kabushiki Kaisha | Injection molding method and apparatus with magnetic mold clamping |
| CN1334157A (en) * | 2000-07-17 | 2002-02-06 | 哈尔滨工业大学 | Apparatus and method for electromagnetic pressure casting of great integral Al-alloy parts |
| JP2005246634A (en) * | 2004-03-01 | 2005-09-15 | Tomita:Kk | Mold fixing device of injection molding machine |
| DE102005058155A1 (en) * | 2005-12-05 | 2007-06-06 | Bühler Druckguss AG | Casting device for pressure casting of nonferrous metal components has casting channel set divided into two curved casting-in channels and later reunited |
-
2014
- 2014-06-25 CN CN201410289430.XA patent/CN104057059B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575233A (en) * | 1968-10-07 | 1971-04-20 | Joachim Mahle | Diecasting mold |
| US5352394A (en) * | 1990-11-30 | 1994-10-04 | Toshiba Kikai Kabushiki Kaisha | Injection molding method and apparatus with magnetic mold clamping |
| JPH05220798A (en) * | 1992-02-17 | 1993-08-31 | Toshiba Mach Co Ltd | Mold clamping device for injection molding machine |
| CN1334157A (en) * | 2000-07-17 | 2002-02-06 | 哈尔滨工业大学 | Apparatus and method for electromagnetic pressure casting of great integral Al-alloy parts |
| JP2005246634A (en) * | 2004-03-01 | 2005-09-15 | Tomita:Kk | Mold fixing device of injection molding machine |
| DE102005058155A1 (en) * | 2005-12-05 | 2007-06-06 | Bühler Druckguss AG | Casting device for pressure casting of nonferrous metal components has casting channel set divided into two curved casting-in channels and later reunited |
Non-Patent Citations (1)
| Title |
|---|
| 田福祥: "《立式压铸机用压铸模和挤铸模65例设计应用评析》", 30 November 2011, 机械工业出版社 * |
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| Publication number | Publication date |
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| CN104057059B (en) | 2016-04-13 |
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