CN105710341B - The processing molding method and aluminium alloy clip of aluminium alloy clip - Google Patents
The processing molding method and aluminium alloy clip of aluminium alloy clip Download PDFInfo
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- CN105710341B CN105710341B CN201410720865.5A CN201410720865A CN105710341B CN 105710341 B CN105710341 B CN 105710341B CN 201410720865 A CN201410720865 A CN 201410720865A CN 105710341 B CN105710341 B CN 105710341B
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Abstract
The present invention relates to a kind of processing molding method of aluminium alloy clip and aluminium alloy clip, wherein, the processing molding method of aluminium alloy clip, it uses the processing method of thixotroping die cast to prepare aluminium alloy clip, specifically comprised the following steps：Semi-solid blank sawing, aluminium alloy semi-solid state blank is sawed into certain size；Reheating, the aluminum alloy blank of certain size is subjected to reheating；Die cast, using die casting machine by the aluminum alloy blank press-in die die cavity after reheating, and it is solidified under high pressure, obtain aluminium alloy clip part；Casting post-processes, for being heat-treated to the aluminium alloy clip part of die cast, so as to obtain high-strength aluminum alloy clip part.The aluminium alloy clip that the processing molding method of aluminium alloy clip provided by the invention is formed, fine microstructures, casting flaw is few, and intensity is high, and part mechanical property is horizontal close to forging, and high with production efficiency, low cost and other advantages.
Description
Technical field
The present invention relates to the processing molding method and aluminium alloy card of engineering machinery field, more particularly to a kind of aluminium alloy clip
Hoop.
Background technology
Clip part is a kind of attachment means for connecting the pipe fitting of with groove, valve and pipe line parts, is risen between butt joint
Fastening effect.In construction machinery product, clip part is using more, such as：Connection in concrete mixer between delivery pipe, fire-fighting
Connection between car water pipe etc..
Same type of clip part is essentially cast iron or cast steel material in the market, is cast as using ordinary liquid
Type.Cast steel or the clip part of cast iron materials shaping, forming technique is more ripe, and part strength is high, and cost is low, but weight compared with
Weight.
Because the density of steel is 7.85g/cm3, and the density of aluminium is 2.78g/cm3, if being replaced with aluminium alloy clip existing
There is cast steel clip, can effective loss of weight.Although aluminium alloy clip has the advantage in weight, but its intensity is lower than cast steel pipe clamp, and past
Toward casting flaw be present, service life is not high, is such as produced using FMT, cost is higher, therefore, in current concrete mixer
Upper seldom application.
The content of the invention
The wherein purpose of the present invention is to propose a kind of processing molding method of aluminium alloy clip, is processed using this method
Aluminium alloy clip, intensity is higher, and processing cost is low.
It is another object of the present invention to propose a kind of aluminium alloy clip, its intensity is higher, and cost is low.
To achieve the above object, the invention provides a kind of processing molding method of aluminium alloy clip, it uses thixotroping pressure
The processing method of type casting moulding prepares aluminium alloy clip.
One preferably or in alternative embodiment, the processing method of the thixotroping die cast comprises the following steps：
Semi-solid blank sawing：Aluminium alloy semi-solid state blank is sawed into certain size；
Reheating：The aluminum alloy blank of certain size is subjected to reheating；
Die cast：Using die casting machine by the aluminum alloy blank press-in die die cavity after reheating, and make it in high pressure
Lower solidification, obtain aluminium alloy clip part.
One preferably or in alternative embodiment, after the step of die cast, in addition to the step of casting post processing, it is used
It is heat-treated in the aluminium alloy clip part to die cast, so as to obtain high-strength aluminum alloy clip part.
Preferably or in alternative embodiment, in the step of casting post-processes, first the die-casting blank of die cast is gone one
Fall slag trap, overlap, and cut off running channel, T6 heat treatments then are carried out to aluminium alloy clip part.
One preferably or in alternative embodiment, after the completion of aluminium alloy semi-solid state blank reheating, its fraction solid is
35%~65%, reheating process is no more than 30min, and each position temperature difference of blank is no more than 20 DEG C.
One preferably or in alternative embodiment, the heat time of reheating is 18min, and each position temperature difference of blank is no more than
5℃。
One preferably or in alternative embodiment, in die cast step, the drift speed of die casting machine is 0.1m/s~5m/s,
Boost pressure >=50Mpa.
One preferably or in alternative embodiment, the drift speed of die casting machine is 1m/s, boost pressure 90Mpa.
Preferably or in alternative embodiment, in the step of semi-solid blank sawing, aluminium alloy semi-solid state blank is sawed one
It is cut into 150mm~200mm stub.
To achieve the above object, present invention also offers a kind of aluminium alloy clip, the aluminium alloy clip to use above-mentioned
The processing molding method of the aluminium alloy clip provided in one embodiment is made.
Based on above-mentioned technical proposal, the present invention at least has the advantages that：
The present invention is using the processing method production aluminium alloy clip of thixotroping die cast, the aluminium alloy of forming method shaping
Clip, fine microstructures, casting flaw is few, and intensity is high, and part mechanical property is horizontal close to forging, near-net-shape, can be heat-treated,
And this method has production efficiency height, low cost and other advantages.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic flow sheet of the processing molding method of aluminium alloy clip provided by the invention；
Fig. 2 (a) is the schematic front view of aluminium alloy clip provided by the invention；
Fig. 2 (b) is the schematic top plan view of aluminium alloy clip provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Bright embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
As shown in figure 1, the illustrative examples of the processing molding method for aluminium alloy clip provided by the invention, show at this
In meaning property embodiment, the processing molding method of aluminium alloy clip prepares aluminium alloy card using the processing method of thixotroping die cast
Hoop, it specifically includes following steps：
1) semi-solid blank sawing：
Aluminium alloy semi-solid state blank is typically made up of electromagnetism semicontinuous casting technique, bar-shaped for length, according to diecast parts hair
The quality of base, by the stub that aluminium alloy semi-solid state blank sawing is certain length.
2) reheating：
The good semi-solid blank of sawing is put into induction heating equipment and carries out reheating, in the solid fraction state of half liquid half, blank
Its fraction solid is 35%~65% after the completion of heating, it is ensured that each position fraction solid of semi-solid blank is evenly distributed；It is secondary
Heating process is no more than 30min, and each position temperature difference of blank is no more than 20 DEG C.
3) die cast：
Semi-solid blank is put into die casting machine material cup, rapid filling mold cavity is promoted by die casting machine punch, makes semisolid
Blank solidifies under high pressure, obtains aluminium alloy clip part blank.Wherein, die casting machine punch speed is 0.1m/s~5m/s, is increased
Pressure pressure >=50Mpa, pressurize mold pickup afterwards for a period of time.
Aluminium alloy clip, and the aluminium alloy clip dense structure prepared, casting can be prepared using above three step
Defect is few, and mechanical property is on close level with forging, service life length.
4) casting post-processes：
The aluminium alloy clip part blank of die cast is removed into slag trap, overlap etc., and cuts off running channel, obtains aluminium alloy
Clip part, T6 heat treatments are then carried out, then carry out bead, then be attached by connector, final molding is high-strength
Spend aluminium alloy clip part.
The present invention uses semi-solid-state metal to fill mold cavity, no splashing and volume gas phenomenon with layer flow mode, so aluminium closes
Gold card hoop is thermally processable, so as to further improve its mechanical property.
A specific embodiment of the processing molding method of aluminium alloy clip provided by the invention is set forth below.
Example is embodied：
This example prepares high intensity clip part using industrial aluminium alloy material, and its composition (percentage by weight) is Si:
0.5%~7%, Cu:0.5%~4%, Mg:0.01%~1%, Sr:0.01%~2%, Ti:0.01%~2%, Zn:
0.001%~1%, remaining is Al.
It is as follows to test specific implementation process：
1) semi-solid blank sawing
Use sawing machine that aluminium alloy semi-solid bar evidence is cut into stub of the length for 150mm~200mm.
2) reheating
The good aluminum alloy blank of sawing is put into induction heating equipment, reheating is carried out by induction coil, during heating
Between be 18min.Through measurement, each position temperature difference of blank is no more than 5 DEG C.
3) die cast
Aluminium alloy semi-solid state blank after the completion of reheating is bled off pressure into rapidly casting machine material cup, die cast is carried out, makes aluminium
Alloy semi-solid blank solidifies under high pressure, obtains aluminium alloy clip part.Wherein, die casting machine punch speed is 1m/s, supercharging
After pressure 90Mpa, pressurize 1min, pickup is molded, obtains semi-solid aluminium alloy clip die casting blank.
4) casting post-processes
Semi-solid aluminium alloy clip die casting blank is removed into slag trap, polishing overlap etc., and cuts off running channel, is then carried out
T6 is heat-treated and bead, then is attached by connector, final molding high-strength aluminum alloy clip part.
Clip part after shaping includes two structure identical semicircle loop sections, two semicircular ring part snap-fits, between
One complete clip part can be turned into by connector connection.
As shown in Fig. 2 (a), Fig. 2 (b), for what is be molded using the processing molding method of aluminium alloy clip provided by the invention
Aluminium alloy clip, the aluminium alloy clip include two the first semicircle of structure identical loop sections 1 and the second semicircle loop section 2.Aluminium
It can be fastened between the first semicircle loop section 1 and the second semicircle loop section 2 of alloy clip by any fastening means, with
Ensure the sealing of this clip part and the connectivity of pipe joint.The He of the first semicircle loop section 1 of aluminium alloy clip is set forth below
The specific embodiment fastened between second semicircle loop section 2.
As shown in Fig. 2 (b), the wherein side of the first semicircle loop section 1 has been wholely set two the first pontes 11, the
The wherein side of two semicircle loop sections 2 is wholely set two second connecting portions point 21, the first semicircle loop section 1 and the second semicircular ring
When part 2 mutually fastens, the first pontes 11 and second connecting portion point 21 alternate placement, and by first connecting portion
Divide in 11 and second connecting portion point 21 and plug rivet 3, the first semicircle loop section 1 and the second semicircle loop section 2 is realized riveting.
As Fig. 2 (a) shows, the opposite side of the first semicircle loop section 1 has been wholely set two the 3rd coupling parts 12, and the second half
The opposite side of ring part 2 is wholely set two the 4th coupling parts 22, will by wearing rivet 5 on the 3rd coupling part 12
Special shaped screw bolt nut assembly 4 is riveted on the first semicircle loop section 1, and the first semicircle loop section 1 and the second semicircle loop section 2 are logical
The profile nut for crossing special shaped screw bolt nut assembly 4 is screwed and closely fastened, and realizes the clamping of clip part.
To ensure in thixotroping press casting procedure that semi-solid blank has a preferable mobility, the through hole on coupling part is is cast into
Realized after type by machining.
The thixotroping method of squeeze forming of aluminium alloy clip provided by the invention at least has advantages below：
1) using thixotroping compression molding process prepare aluminium alloy clip, dense structure, casting flaw is few, mechanical property with
Forging is on close level, service life length.
2) thixotroping compression molding process significantly improves relative to conventional cast and forging technology, production efficiency, production cost
It is low.
3) semi-solid-state metal fills mold cavity, no splashing and volume gas phenomenon with layer flow mode, so aluminium alloy clip can
It is heat-treated, so as to further improve its mechanical property.
4) thixotroping die cast is near-net-shape technique, need not carry out postorder machining substantially, use manpower and material resources sparingly.
The aluminium alloy clip part prepared using thixotroping method of squeeze forming provided by the invention, relative to cast steel clip weight
Amount significantly reduces, and mechanical property meets requirement, and production efficiency is high, and manufacturing cost is low.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；And this is not being departed from
The various structural adjustments carried out in the case of invention marrow and control parameter collocation, it all should cover claimed in the present invention
Among technical scheme scope.
Claims (8)
- A kind of 1. processing molding method of aluminium alloy clip, it is characterised in that：Prepared using the processing method of thixotroping die cast Aluminium alloy clip；The processing method of the thixotroping die cast comprises the following steps：Semi-solid blank sawing：Aluminium alloy semi-solid state blank is sawed into pre-set dimension；Reheating：The aluminum alloy blank for being sawed into pre-set dimension is subjected to reheating；Die cast：Using die casting machine by the aluminum alloy blank press-in die die cavity after reheating, and it is set to coagulate under high pressure Gu obtain aluminium alloy clip part；After the completion of aluminium alloy semi-solid state blank reheating, its fraction solid is 35%~65%, and reheating process is no more than 30min, each position temperature difference of blank are no more than 20 DEG C.
- 2. the processing molding method of aluminium alloy clip as claimed in claim 1, it is characterised in that：The die cast the step of Afterwards, the step of in addition to casting post-processes, it is used to be heat-treated the aluminium alloy clip part of die cast, so as to obtain High-strength aluminum alloy clip part.
- 3. the processing molding method of aluminium alloy clip as claimed in claim 2, it is characterised in that：Casting post-processes the step of In, the die-casting blank of die cast is first removed into slag trap, overlap, and running channel is cut off, then aluminium alloy clip part is carried out T6 is heat-treated.
- 4. the processing molding method of aluminium alloy clip as claimed in claim 1, it is characterised in that：The heat time of reheating For 18min, each position temperature difference of blank is no more than 5 DEG C.
- 5. the processing molding method of aluminium alloy clip as claimed in claim 1, it is characterised in that：In die cast step, pressure The drift speed of casting machine is 0.1m/s~5m/s, boost pressure >=50Mpa.
- 6. the processing molding method of aluminium alloy clip as claimed in claim 5, it is characterised in that：The drift speed of die casting machine is 1m/s, boost pressure 90Mpa.
- 7. the processing molding method of aluminium alloy clip as claimed in claim 1, it is characterised in that：In semi-solid blank sawing In step, aluminium alloy semi-solid state blank is sawed into 150mm~200mm stub.
- A kind of 8. aluminium alloy clip, it is characterised in that：The aluminium alloy clip is using the aluminium as described in claim any one of 1-7 The processing molding method of alloy clip is made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720865.5A CN105710341B (en) | 2014-12-02 | 2014-12-02 | The processing molding method and aluminium alloy clip of aluminium alloy clip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720865.5A CN105710341B (en) | 2014-12-02 | 2014-12-02 | The processing molding method and aluminium alloy clip of aluminium alloy clip |
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| CN105710341A CN105710341A (en) | 2016-06-29 |
| CN105710341B true CN105710341B (en) | 2018-01-05 |
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| CN108160967A (en) * | 2017-08-30 | 2018-06-15 | 芜湖舜富精密压铸科技有限公司 | A kind of pressure casting method technique of alloy |
| CN114083237A (en) * | 2021-11-23 | 2022-02-25 | 贵州航天电子科技有限公司 | U-shaped capacitor clamp machining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPQ967800A0 (en) * | 2000-08-25 | 2000-09-21 | Commonwealth Scientific And Industrial Research Organisation | Aluminium pressure casting |
| JP4699150B2 (en) * | 2005-09-16 | 2011-06-08 | 日本ヴィクトリック株式会社 | Housing type pipe fitting |
| EP2408940B1 (en) * | 2009-03-19 | 2018-10-03 | Ab Skf | Method of manufacturing a bearing ring |
| CN202520640U (en) * | 2011-12-29 | 2012-11-07 | 惠阳航空螺旋桨有限责任公司 | Clamp hoop for clamping blade on fan hub |
| CN102626821B (en) * | 2012-04-27 | 2014-10-08 | 哈尔滨工业大学 | Method for connecting semi-solid materials into whole |
| CN103785818A (en) * | 2012-10-31 | 2014-05-14 | 江苏万里活塞轴瓦有限公司 | High-strength semisolid thixoforming rare earth aluminum alloy material preparation method |
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