CN104907533B - Extrusion casting method for hub workblank - Google Patents
Extrusion casting method for hub workblank Download PDFInfo
- Publication number
- CN104907533B CN104907533B CN201510226130.1A CN201510226130A CN104907533B CN 104907533 B CN104907533 B CN 104907533B CN 201510226130 A CN201510226130 A CN 201510226130A CN 104907533 B CN104907533 B CN 104907533B
- Authority
- CN
- China
- Prior art keywords
- formpiston
- pressure
- overcoat
- storage cylinder
- oil storage
- 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.)
- Expired - Fee Related
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 40
- 238000005266 casting Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 claims abstract description 71
- 238000003860 storage Methods 0.000 claims abstract description 38
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 32
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000006071 cream Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Forging (AREA)
Abstract
The invention relates to an extrusion casting method for a hub workblank. The method comprises the steps that the overflowing type local pressure supplementing extrusion casting technology is adopted, firstly, total pressure is exerted on molten aluminum alloy through a male mold and a male mold housing, and after a spoke with the small thickness obtained through pressure maintaining is partially solidified under the extrusion casting specific pressure, an overflowing pressure intensity value of an overflowing valve connected with an oil outlet hole is adjusted to be lower than the extrusion casting specific pressure; accordingly, the pressure exerted on the male mold is decreased by delta P, and the pressure exerted on the male mold housing is increased by delta P correspondingly; as a result, the male mold housing can exert larger pressure on the rim portion with the large thickness and unsolidified molten aluminum alloy and a casting hot spot of the transition portion of the rim and the spoke, local pressure supplementing is performed, and hydraulic oil inside an oil storage cylinder overflows from the oil outlet hole along with descending of the male mold housing, relative displacement is generated between the male mold and the male mold housing, so that the obstruction formed by the solidified spoke with the small thickness on continuous descending of the male mold housing is eliminated, and the phenomenon that a shrinkage cavity and looseness are likely to be formed in the portion is relieved or eliminated.
Description
Technical field
The present invention relates to the extrusion casint neck of metal working technical area, particularly heavy vehicle aluminum alloy hub blank
Domain, refers specifically to a kind of overflow-type local repair pressure extrusion casting method of wheel hub blank.
Background technology
Heavy vehicle aluminum alloy hub blank can be shaped or direct-type Extrution casting technique using forging technology both at home and abroad
Shape, and the presence of heavy vehicle aluminum alloy hub blank is shaped using forging technology and needs great tonnage hydraulic equipment, technological process
The problems such as complexity, production cost are high, so, heavy vehicle aluminum alloy hub blank is shaped using direct-type Extrution casting technique and becomes
Research emphasis for such technique current.
Direct-type Extrution casting technique method of the prior art is simple, and mechanical property can reach or close close to forged aluminium
The horizontal mechanical performance level of golden wheel hub, but there are the following problems:
Thickness due to aluminium alloy wheel hub wheel rim position is more than the thickness at spoke position, during extrusion casint
After thickness less spoke position solidifies first, the entire lowering of formpiston and formpiston overcoat will be stoped, lead to thickness
At the casting thermal center at larger wheel rim position, wheel rim and wheel hub intermediate location, the aluminum alloy melt of ot-yet-hardened is in no extrusion casint pressure
Freely solidify under power, shrinkage cavity and the defect such as loose easily occur.
Therefore, for the extrusion casting method of current wheel hub blank, await further being improved.
Content of the invention
The technical problem to be solved is the present situation for prior art, provides a kind of extruding of wheel hub blank to cast
Make method, the method can effectively slow down or eliminate the casting thermal center of larger-size wheel rim position, wheel rim and wheel hub intermediate location
Easily shrinkage cavity or loose problem in place, effectively improves the quality of wheel hub blank.
The technical scheme that present invention solution above-mentioned technical problem is adopted is: a kind of extrusion casting method of wheel hub blank,
It is characterized in that comprising the following steps:
(1) Casting Equipment prepares
This Casting Equipment includes former, former overcoat, top plug, formpiston, formpiston overcoat, oil storage cylinder and hydraulic press, described the moon
Mould and former overcoat are in mating connection to form the containing cavity that a top has opening, described top plug can move up and down located at former
Upper and upper end can be stretched in above-mentioned containing cavity；
Described oil storage cylinder is fixedly connected on the top shoe of hydraulic press and has lower port, is sheathed on oil storage outside described formpiston
Below cylinder, in the lower port located at oil storage cylinder that described formpiston can move up and down through formpiston overcoat, and the upper end of described formpiston
The inwall of face and oil storage cylinder collectively forms the shoe cream room of oil storage cylinder；
Have the fuel feed hole being connected with shoe cream room and oil outlet on the side wall of described oil storage cylinder, connect outside this fuel feed hole
There is oil inlet valve, outside this oil outlet, be connected with an overflow valve；
(2) extrusion casint of wheel hub blank
A) open oil inlet valve, make hydraulic oil after being full of the shoe cream room of oil storage cylinder, close this oil inlet valve, set with fuel-displaced
The overflow pressure values of overflow valve that hole is connected are more equal than pressure with extrusion casint or compare pressure higher than extrusion casint；
B) 160～200 DEG C will be preheated to by the containing cavity that former overcoat, former and top plug are constituted, by formpiston, formpiston overcoat
It is preheated to 200～250 DEG C, 680～720 DEG C of aluminum alloy melt is poured in the containing cavity after preheating, movable hydraulic machine top shoe
Make formpiston, formpiston overcoat entire lowering apply gross pressure for extrusion casint than pressure to the aluminum alloy melt in containing cavity, and protect
Pressure 60～80s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to extrusion casint ratio the 50%～60% of pressure, continue
Release after continuation of insurance pressure 40～60s；
D) first rise hydraulic press top shoe, formpiston, formpiston overcoat and oil storage cylinder are removed, then go up top plug aluminium alloy
Wheel hub blank ejects from containing cavity.
As a further improvement on the present invention, the overflow pressure values of the overflow valve being connected with oil outlet described in step a) are high
In extrusion casint than pressure 3～5mpa.
Preferably, the periphery on described formpiston top is arranged with a sealing ring, to avoid hydraulic oil from formpiston and oil storage cylinder
Junction leakage.
In such scheme, the lower end of described formpiston overcoat has a convergence part, the inwall of this convergence part and described formpiston
Periphery fit tightly, under described step b) completion statuses, the inwall of the periphery of this convergence part and described former overcoat closely pastes
Close, using this structure, to guarantee the pressure stability that formpiston and formpiston overcoat apply to the aluminum alloy melt in containing cavity.
In above-mentioned each preferred version, described extrusion casint than pressure for formpiston and formpiston overcoat to the aluminum in containing cavity
The pressure sum that aluminium alloy applies.
Compared with prior art, it is an advantage of the current invention that:
In the present invention, extrusion casint first passes through formpiston after starting, formpiston overcoat applies gross pressure to aluminum alloy melt, and
This extrusion casint is than pressurize under pressure to thickness less spoke position solidification, excessive be connected with the oil outlet of oil storage cylinder
The overflow pressure values of stream valve are adjusted to tract below extrusion casint than pressure, and the pressure that such formpiston applies will reduce △ p, and formpiston overcoat
The pressure applying will accordingly increase △ p, and result can make that formpiston overcoat is larger to thickness, the wheel rim of aluminum alloy melt ot-yet-hardened
Press at the casting thermal center of position and wheel rim and spoke intermediate location bigger pressure, carries out local ftercompction；And local repair presses through
Cheng Zhong, the continuation with formpiston overcoat declines, and the hydraulic oil in oil storage cylinder is overflowed by oil outlet, and formpiston is produced with formpiston overcoat
Relative displacement, thus eliminate the obstruction that the relatively thin spoke position of the thickness having solidified continues to decline to formpiston overcoat.
The present invention adopts overflow-type local repair pressure Extrution casting technique it is achieved that with larger extrusion casint than pressure to chi
Carry out local ftercompction at the casting thermal center at very little larger wheel rim position, wheel rim and spoke intermediate location, slow down or eliminate this portion
Shrinkage cavity that position easily occurs and the defect such as loose.
Brief description
Fig. 1 is the structural representation of Casting Equipment in the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figure 1, the Casting Equipment that the extrusion casting method of the wheel hub blank of the present invention is adopted includes former 1, the moon
Mould overcoat 2, top plug 3, formpiston 4, formpiston overcoat 5, oil storage cylinder 6 and hydraulic press (not shown), former 1 is matched with former overcoat 2
Close to connect and form a top there is the containing cavity 10 of opening, top plug 3 can move up and down on former 1 and upper end can be stretched into
State in containing cavity 10.
Oil storage cylinder 6 is fixedly connected on the top shoe of hydraulic press and has lower port, and formpiston overcoat 5 is under oil storage cylinder 6
Side, in the lower port located at oil storage cylinder 6 that formpiston 4 can move up and down through formpiston overcoat 5, and the upper surface of formpiston 4 and oil storage
The inwall of cylinder 6 collectively forms the shoe cream room 61 of oil storage cylinder 6.
The fuel feed hole 62 being connected with shoe cream room 61 and oil outlet 63 is had, outside this fuel feed hole 62 on the side wall of oil storage cylinder 6
Side is connected with oil inlet valve (not shown), is connected with an overflow valve (not shown) outside this oil outlet 63.
The periphery on formpiston 4 top is arranged with a sealing ring 41, to avoid hydraulic oil from the junction of formpiston 4 and oil storage cylinder 6
Leakage.The lower end of formpiston overcoat 5 has a convergence part 51, and the inwall of this convergence part 51 is fitted tightly with the periphery of formpiston 4, formpiston
Under overcoat 5 and former overcoat 2 apposition, the periphery of this convergence part 51 is fitted tightly with the inwall of former overcoat 2.
Following embodiment is using the 1500 t hydraulic press manufacture aluminum alloy hub blanks for φ 540mm for the outside diameter to be
Example illustrates to extrusion casting method.
Embodiment 1:
In the present embodiment, the extrusion casting method of wheel hub blank is cast using above-mentioned Casting Equipment, specifically includes following
Step:
A) open oil inlet valve, make hydraulic oil close this oil inlet valve after being full of the shoe cream room 61 of oil storage cylinder 6, set and go out
The overflow pressure values of the overflow valve that oilhole 63 is connected are more equal than pressure 65.5mpa with extrusion casint；
B) 160～170 DEG C will be preheated to by the containing cavity 10 that former overcoat 2, former 1 and top plug 3 are constituted, by formpiston 4, sun
Mould overcoat 5 is preheated to 200～210 DEG C, 680～690 DEG C of aluminum alloy melt is poured in the containing cavity after preheating 10, movable hydraulic
It is 65.5mpa to the aluminum alloy melt in containing cavity 10 is applied with gross pressure that machine top shoe makes formpiston 4, formpiston overcoat 5 entire lowering,
And pressurize 60s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to 32.8mpa, continue release after pressurize 40s；
D) rise hydraulic press top shoe, formpiston 4, formpiston overcoat 5 and oil storage cylinder 6 are removed, rise top 3 aluminum alloy wheels of plug
Hub blank ejects from containing cavity 10.
Embodiment 2:
In the present embodiment, the extrusion casting method of wheel hub blank is cast using above-mentioned Casting Equipment, specifically includes following
Step:
A) open oil inlet valve, make hydraulic oil close this oil inlet valve after being full of the shoe cream room 61 of oil storage cylinder 6, set and go out
The overflow pressure values of the overflow valve that oilhole 63 is connected are 70mpa；
B) 175～185 DEG C will be preheated to by the containing cavity 10 that former overcoat 2, former 1 and top plug 3 are constituted, by formpiston 4, sun
Mould overcoat 5 is preheated to 220～230 DEG C, 690～710 DEG C of aluminum alloy melt is poured in the containing cavity after preheating 10, movable hydraulic
It is 70mpa to the aluminum alloy melt in containing cavity 10 is applied with gross pressure that machine top shoe makes formpiston 4, formpiston overcoat 5 entire lowering, and
Pressurize 70s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to 36mpa, continue release after pressurize 50s；
D) rise hydraulic press top shoe, formpiston 4, formpiston overcoat 5 and oil storage cylinder 6 are removed, rise top 3 aluminum alloy wheels of plug
Hub blank ejects from containing cavity 10.
Embodiment 3:
In the present embodiment, the extrusion casting method of wheel hub blank is cast using above-mentioned Casting Equipment, specifically includes following
Step:
A) open oil inlet valve, make hydraulic oil close this oil inlet valve after being full of the shoe cream room 61 of oil storage cylinder 6, set and go out
The overflow pressure values of the overflow valve that oilhole 63 is connected are 68.5mpa；
B) 190～200 DEG C will be preheated to by the containing cavity 10 that former overcoat 2, former 1 and top plug 3 are constituted, by formpiston 4, sun
Mould overcoat 5 is preheated to 240～250 DEG C, 710～720 DEG C of aluminum alloy melt is poured in the containing cavity after preheating 10, movable hydraulic
It is 65.5mpa to the aluminum alloy melt in containing cavity 10 is applied with gross pressure that machine top shoe makes formpiston 4, formpiston overcoat 5 entire lowering,
And pressurize 80s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to 39.3mpa, continue release after pressurize 60s；
D) rise hydraulic press top shoe, formpiston 4, formpiston overcoat 5 and oil storage cylinder 6 are removed, rise top 3 aluminum alloy wheels of plug
Hub blank ejects from containing cavity 10.
Embodiment 4:
In the present embodiment, the extrusion casting method of wheel hub blank is cast using above-mentioned Casting Equipment, specifically includes following
Step:
A) open oil inlet valve, make hydraulic oil close this oil inlet valve after being full of the shoe cream room 61 of oil storage cylinder 6, set and go out
The overflow pressure values of the overflow valve that oilhole 63 is connected are 70.5mpa；
B) 190～200 DEG C will be preheated to by the containing cavity 10 that former overcoat 2, former 1 and top plug 3 are constituted, by formpiston 4, sun
Mould overcoat 5 is preheated to 240～250 DEG C, 710～720 DEG C of aluminum alloy melt is poured in the containing cavity after preheating 10, movable hydraulic
It is 65.5mpa to the aluminum alloy melt in containing cavity 10 is applied with gross pressure that machine top shoe makes formpiston 4, formpiston overcoat 5 entire lowering,
And pressurize 80s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to 36.7mpa, continue release after pressurize 60s；
D) rise hydraulic press top shoe, formpiston 4, formpiston overcoat 5 and oil storage cylinder 6 are removed, rise top 3 aluminum alloy wheels of plug
Hub blank ejects from containing cavity 10.
Claims (3)
1. a kind of extrusion casting method of wheel hub blank is it is characterised in that comprise the following steps:
(1) Casting Equipment prepares
This Casting Equipment includes former, former overcoat, top plug, formpiston, formpiston overcoat, oil storage cylinder and hydraulic press, described former and
The former overcoat top that formed in mating connection has the containing cavity of opening, described top plug can move up and down on former and
Upper end can be stretched in above-mentioned containing cavity；
Described oil storage cylinder is fixedly connected on the top shoe of hydraulic press and has lower port, is sheathed under oil storage cylinder outside described formpiston
Side, in the lower port located at oil storage cylinder that described formpiston can move up and down through formpiston overcoat, and the upper surface of described formpiston and
The inwall of oil storage cylinder collectively forms the shoe cream room of oil storage cylinder；
Have the fuel feed hole being connected with shoe cream room and oil outlet on the side wall of described oil storage cylinder, be connected with outside this fuel feed hole into
Fuel tap door, is connected with an overflow valve outside this oil outlet；
(2) extrusion casint of wheel hub blank
A) open oil inlet valve, make hydraulic oil after being full of the shoe cream room of oil storage cylinder, close this oil inlet valve, set and oil outlet phase
The overflow pressure values of overflow valve even are more equal than pressure with extrusion casint or compare pressure higher than extrusion casint；Described with oil outlet phase
The overflow pressure values of overflow valve even are higher than extrusion casint than pressure 3～5mpa；Described extrusion casint than pressure for formpiston and
The pressure sum that formpiston overcoat applies to the aluminum alloy melt in containing cavity；
B) 160～200 DEG C will be preheated to by the containing cavity that former overcoat, former and top plug are constituted, by formpiston, the preheating of formpiston overcoat
To 200～250 DEG C, 680～720 DEG C of aluminum alloy melt is poured in the containing cavity after preheating, movable hydraulic machine top shoe makes sun
Mould, formpiston overcoat entire lowering apply gross pressure for extrusion casint than pressure to the aluminum alloy melt in containing cavity, and pressurize 60
～80s；
C) the overflow pressure values of the overflow valve being connected with oil outlet are down to extrusion casint ratio the 50%～60% of pressure, continue to protect
Release after pressure 40～60s；
D) first rise hydraulic press top shoe, formpiston, formpiston overcoat and oil storage cylinder are removed, then go up top plug aluminium alloy wheel hub
Blank ejects from containing cavity.
2. wheel hub blank according to claim 1 extrusion casting method it is characterised in that: the periphery on described formpiston top
It is arranged with a sealing ring.
3. wheel hub blank according to claim 1 extrusion casting method it is characterised in that: the lower end of described formpiston overcoat
There is a convergence part, the inwall of this convergence part is fitted tightly with the periphery of described formpiston, under described step b) completion statuses, this rank
The periphery of socket part is fitted tightly with the inwall of described former overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226130.1A CN104907533B (en) | 2015-05-05 | 2015-05-05 | Extrusion casting method for hub workblank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226130.1A CN104907533B (en) | 2015-05-05 | 2015-05-05 | Extrusion casting method for hub workblank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104907533A CN104907533A (en) | 2015-09-16 |
| CN104907533B true CN104907533B (en) | 2017-02-01 |
Family
ID=54077210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510226130.1A Expired - Fee Related CN104907533B (en) | 2015-05-05 | 2015-05-05 | Extrusion casting method for hub workblank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104907533B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215327B (en) * | 2015-10-31 | 2019-10-11 | 重庆鼎汉机械有限公司 | The extruding manufacturing process of wheel hub outer ring |
| CN106180644B (en) * | 2016-09-23 | 2018-11-16 | 广东粤海华金科技股份有限公司 | String cylinder vertical extrusion casting machine |
| CN106180643B (en) * | 2016-09-23 | 2018-11-16 | 华南理工大学 | The extrusion casting method of casting |
| CN108080600B (en) * | 2017-11-17 | 2019-09-27 | 中国兵器科学研究院宁波分院 | A method of airport runway center line lamp upper cover blank is prepared with squeeze casting mould |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179664A (en) * | 2010-12-30 | 2011-09-14 | 河南科技大学 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
| CN102251158A (en) * | 2011-07-09 | 2011-11-23 | 浙江巨科铝业有限公司 | Aluminium alloy for vehicle hub and preparation method thereof |
| CN102380600A (en) * | 2010-08-28 | 2012-03-21 | 王维涛 | Extruding and casting process of hub |
| CN102744570A (en) * | 2012-06-29 | 2012-10-24 | 宁波宝通轮业有限公司 | Three-step aluminum alloy hub producing method and forging dies and spinning dies used by same |
| CN103381541A (en) * | 2013-06-03 | 2013-11-06 | 陈幕毅 | Manufacturing method of composite high-strength nonferrous alloy wheel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06277817A (en) * | 1993-03-29 | 1994-10-04 | Topy Ind Ltd | Low pressure casting device |
| KR100889480B1 (en) * | 2007-04-18 | 2009-03-19 | 양현경 | Casting method by rotating type casting equipment |
-
2015
- 2015-05-05 CN CN201510226130.1A patent/CN104907533B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380600A (en) * | 2010-08-28 | 2012-03-21 | 王维涛 | Extruding and casting process of hub |
| CN102179664A (en) * | 2010-12-30 | 2011-09-14 | 河南科技大学 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
| CN102251158A (en) * | 2011-07-09 | 2011-11-23 | 浙江巨科铝业有限公司 | Aluminium alloy for vehicle hub and preparation method thereof |
| CN102744570A (en) * | 2012-06-29 | 2012-10-24 | 宁波宝通轮业有限公司 | Three-step aluminum alloy hub producing method and forging dies and spinning dies used by same |
| CN103381541A (en) * | 2013-06-03 | 2013-11-06 | 陈幕毅 | Manufacturing method of composite high-strength nonferrous alloy wheel |
Non-Patent Citations (2)
| Title |
|---|
| 挤压铸造铝轮毂的技术研究;马欣宇 等;《特种铸造及有色合金》;20071231(第S1期);292-295 * |
| 铝合金轮毂浮动阴模挤压铸造工艺研究;侯立群 等;《特种铸造及有色合金》;20150420;第35卷(第4期);351-353 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104907533A (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104907533B (en) | Extrusion casting method for hub workblank | |
| CN101912944B (en) | Method for machining aluminum alloy hub | |
| CN104475698B (en) | A kind of liquid forging method of many areas exerted pressure on | |
| CN101274361A (en) | Low speed vacuum squeeze casting technology | |
| CN101927329A (en) | Vacuum high-pressure casting method | |
| EP3539694B1 (en) | Aluminum wheel squeeze casting process and device | |
| CN105642866A (en) | Crystallization pressurization method for low-pressure casting molding of aluminum alloy wheel metal mold | |
| CN106031946A (en) | Manufacturing process for aluminum alloy bus wheel hub by gravity compression casting | |
| CN104999047A (en) | Die-casting die for aluminum alloy hub | |
| CN105689688A (en) | Crystallization pressure keeping and increasing method for low-pressure casting molding of aluminum alloy wheel metal mold | |
| CN102601142B (en) | Magnesium alloy extruding-forging forming process and magnesium alloy extruding-forging forming device | |
| CN105618710A (en) | Fast pressurization method after pressure maintaining used for metal-mold low-pressure casting and forming of aluminum alloy wheel | |
| CN205437101U (en) | Aluminum alloy cell phone case die casting die | |
| CN206662239U (en) | Car engine cooling system thermosistor main body bank part die-casting forming die | |
| CN104759604B (en) | A kind of wheel hub die casting | |
| CN204817998U (en) | Aluminum alloy wheel hub die casting die | |
| CN204504184U (en) | A kind of wheel hub die casting | |
| TWI717718B (en) | Molding method and mold of aluminum alloy cast-forged wheel rim for mobile carrier | |
| CN108817353B (en) | Composite liquid die forging device and method for battery bottom shell blank of electric automobile | |
| CN111790894B (en) | Forming method of aluminum alloy cast-forged rim for mobile carrier and casting mold thereof | |
| JP2014076450A (en) | Gravity casting apparatus and gravity casting method for knuckle | |
| CN202490842U (en) | Magnesium alloy swaging forming device | |
| CN104550847A (en) | Low-pressure wheel hub casting mold | |
| CN207914569U (en) | A kind of aluminum-alloy wheel extrusion casint device | |
| CN105251970A (en) | Low-pressure casting die for aluminum alloy wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |