CN100386175C - Method for manufacturing bicycle rim by using magnesium alloy section bar - Google Patents
Method for manufacturing bicycle rim by using magnesium alloy section bar Download PDFInfo
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- CN100386175C CN100386175C CNB2005100984463A CN200510098446A CN100386175C CN 100386175 C CN100386175 C CN 100386175C CN B2005100984463 A CNB2005100984463 A CN B2005100984463A CN 200510098446 A CN200510098446 A CN 200510098446A CN 100386175 C CN100386175 C CN 100386175C
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- magnesium alloy
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- bicycle rim
- extrusion
- alloy bar
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 37
- 238000001125 extrusion Methods 0.000 claims abstract description 27
- 230000032683 aging Effects 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 4
- 239000011777 magnesium Substances 0.000 claims description 26
- 229910052749 magnesium Inorganic materials 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 10
- 239000011800 void material Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910001051 Magnalium Inorganic materials 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- -1 Magnesium rare earth metal Chemical class 0.000 claims description 2
- UQCVYEFSQYEJOJ-UHFFFAOYSA-N [Mg].[Zn].[Zr] Chemical class [Mg].[Zn].[Zr] UQCVYEFSQYEJOJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 150000002696 manganese Chemical class 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 230000036461 convulsion Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001192 hot extrusion Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a method for manufacturing a bicycle rim, in particular to a method for manufacturing the bicycle rim by using a magnesium alloy section. The manufacturing method of the magnesium alloy bicycle rim comprises two processes of extrusion and molding: the extrusion process flow comprises the working procedures of magnesium alloy rod cutting, solid melting treatment, magnesium alloy rod heating, mold heating, upper mold feeding, extrusion, saw cutting interruption, material transfer, fixed length saw cutting and aging treatment; the forming process flow comprises the procedures of circle circling, cutting off, glue smearing, pin installing, splicing, correction and inspection, polishing, punching or drilling a strip hole and punching a valve hole. The manufacturing method of the magnesium alloy bicycle rim has the advantages of simple process and convenient operation, and the magnesium alloy bicycle rim manufactured by the method is noble and elegant, has fine texture and is beautiful and elegant.
Description
Technical field
The present invention is a kind of preparation method of bicycle rim, particularly a kind of method of making bicycle rim of magnesium alloy profiles.
Background technology
Bicycle rim is the important spare part of bicycle, needs higher mechanical property, requires simultaneously that weight is the lightest, low price, elegant in appearance.This part at present mainly by aluminium alloy section bar productions such as (6061,6063,7005), and through after T5 or the T6 processing, has further improved mechanical property originally mainly by the steel welding.In order further to alleviate car weight, present method is to use magnesium alloy substitution of Al alloy instead.Through verification experimental verification, the comprehensive mechanical performance of magnesium alloy has all reached instructions for use, but its proportion has only 2/3rds of aluminium alloy, by calculating with the volume material, its cost has been lower than aluminium alloy, and magnesium alloy product is noble elegant, exquisite in texture, elegant in appearance, so magnesium alloy materials is having a wide range of applications in the manufacturing field of bicycle.
The manufacture craft comparative maturity of aluminum current alloy bicycle rim, but, produce magnesium-alloy material with existing method of producing the Al-alloy bicycle wheel rim and but can not get satisfied effect, so, how developing a kind of method of producing magnesium alloy cycle wheel rim that is specifically designed to, is pressing for of bicycle production field.
Summary of the invention
The making of magnesium alloy bicycle rim at present also is faced with some technical problems: as the technology controlling and process narrow range, relatively stricter to the temperature that hot extrusion requires; The plastic deformation performance is relatively poor relatively, is unfavorable for mechanical-moulded; Corrosion resistance is relatively poor relatively.The objective of the invention is to provide a kind of method of making bicycle rim of magnesium alloy profiles at above-mentioned technical problem, this method can strictly be controlled the magnesium alloy extrusion temperature, can improve the magnesium alloy plastic deformation performance, can improve the corrosion resistance of magnesium alloy, use this method to originate from the driving wheel rim next life, its quality is good, the production efficiency height, be fit to produce remarkable in economical benefits in enormous quantities.
The magnesium alloy bicycle rim has high requirement to material, and different types of bicycle is also different to the wheel rim performance demands, according to the mechanical property of using, requires to adopt the magnesium alloy of different series composition to make bicycle rim, and the specific series composition is as follows:
Magnalium series: 3-10%-Al, surplus Mg and impurity.
Magnalium zinc series: 3-10%-Al, 0.5-1%Zn, surplus Mg and impurity.
Magnalium manganese series: 3-10%-Al, 0.2-1%Mn, surplus Mg and impurity.
Magnesium zinc zirconium series: 0.5-1%Zn, 0.1-1%Zr, surplus Mg and impurity.
Magnesium rare earth metal: 1-3%Re, surplus Mg and impurity.
The extrusion temperature of magnesium alloy is 300 ℃-410 ℃, but very narrow to the claimed range of specific series alloy, requires to be controlled at a specific range of temperatures between its solidus and the solid solubility curve, and this scope is 350 ℃～360 ℃.
Magnesium alloy is responsive to the hot extrusion velocity ratio, especially must work good with extrusion temperature, otherwise can influence the consistency of performance and the uniformity of product, and general extrusion speed remains under the state of 3m-7m/min, just can reach satisfied effect.
Electric furnace is preferably adopted in heating to magnesium alloy, and requires forced circulation gas, to guarantee the uniformity and the uniformity of temperature.
Because the easy oxidation of Mg alloy surface is so will remove the peel the magnesium ingot surface.
Should carry out Ageing Treatment to the magnesium alloy profiles after the moulding, described Ageing Treatment is exactly the magnesium alloy profiles after the extruding to be put into the heat-treatment furnace that maintains uniform temperature be incubated a period of time, generally be in 180 ℃ of-190 ℃ of scopes, to be incubated 12 hours, through the magnesium alloy profiles of Ageing Treatment, its intensity, hardness will be significantly improved.
Because the strictness of magnesium alloy product manufacture process requirement, and control range is narrower, so must strictly control each procedure, guarantees the accurate of technological parameter, guarantees that The comprehensive performance is evenly consistent, effectively improves yield rate.The preparation method of magnesium alloy bicycle rim of the present invention, technology is simple, and is easy to operate, makes the magnesium alloy bicycle rim with this method, noble elegant, and exquisite in texture is elegant in appearance.
The preparation method of magnesium alloy bicycle rim comprises extruding and two flow processs of moulding.
One. magnesium alloy profiles extrusion process flow process:
The extrusion process flow process comprises magnesium alloy bar fracture, solid melt processed, magnesium alloy bar heating, mold heated, patrix, pan feeding, extruding, interruption sawing, moves material, every operation is put in scale sawing, Ageing Treatment, check, packing in storage.
Extrusion process parameters:
The solid melt processed temperature of magnesium alloy bar: 400 ℃ (300 ℃-410 ℃); Be incubated 24 hours;
Magnesium alloy bar heating-up temperature: 370 (365 ℃-375 ℃); Be incubated 2 hours;
Magnesium alloy bar extrusion temperature: 355 ℃ (350 ℃～360 ℃);
Extruding barrel temperature: 300 ℃ (290 ℃-310 ℃);
Magnesium alloy bar extrusion speed: 5m/min (3m-7m/min);
Mold heated temperature: 355 ℃ (350 ℃～360 ℃);
Aging temperature: 185 ℃ (180 ℃-190 ℃); Be incubated 12 hours;
Two. magnesium alloy wheel rim moulding process flow process:
The moulding process flow process comprises circle circle, cut-out, daub, dress pin, grafting, correction check, polishing, dashes or bore cylindrical void, valve hole, the every operation of typewriting.
The circle circle rolls into ring shape with section bar by billot by make-up machine exactly, and a section bar can be rolled into the spirality that constitutes three circles; Cut off is exactly will enclose good round spirality magnesium material by cutting machine to be cut into three independently wheel rims; Daub is exactly a daub in two pin-and-holes in magnesium wheel rim cross section; Dress is sold the pin of the corresponding specification of packing into exactly in two pin-and-holes in magnesium wheel rim cross section; The steel belt for rim pressure that peg graft to be exactly will to install by the grafting machine pin connects into whole finished product to interface; Proofread and correct mainly is to proofread and correct interface out-of-flatness or the mismatch that causes because of the distortion of section bar cross section geometry; Check mainly is the ovality and the high-low side insight journey of check magnesium alloy circle; Polishing refers to by sanding machine with polishing wheel the skim assorted slag and the slide mark on wheel rim blank surface, to obtain smooth surface; Towards cylindrical void is exactly the installing hole of getting vertically hung scroll on wheel rim; Towards cylindrical void is exactly the installing hole of getting vertically hung scroll on wheel rim; Valve hole is exactly an installing hole of getting valve cock on wheel rim; The printed words about aspects such as models are got in typewriting exactly on the magnesium alloy circle.
Description of drawings
Fig. 1 is that the present invention pushes flow chart
Fig. 2 is a moulding flow chart of the present invention
The specific embodiment
The production process of magnesium alloy wheel rim comprises extruding and two flow processs of moulding, and the specific embodiment of these two flow processs is as follows:
One. as shown in Figure 1, magnesium section bar extruding flow process comprise the extrusion process flow process comprise magnesium alloy bar fracture, solid melt processed, magnesium alloy bar heating, mold heated, patrix, pan feeding, extruding, interruption sawing, move material-, scale sawing, Ageing Treatment, check, packing put every operation in storage.
The magnesium alloy bar that cut-out is good is put into heating furnace and is heated to solid melt processed temperature (400 ℃), is incubated after 24 hours, and air cooling drops to room temperature; And then be heated to 370 ℃, through being incubated 2 hours, enter extrusion process; Will carry out preheating to mould before extruding, the temperature of its preheating is 355 ℃, and this temperature is extrusion temperature; Extruding require to keep certain extrusion speed, the extrusion speed of magnesium alloy bar is remained on 5m/MIN be advisable; The section bar that is squeezed out falls into the extruding barrel, and the extruding barrel temperature should remain under 300 ℃ the state is advisable; Should carry out Ageing Treatment to the magnesium alloy profiles after the moulding, the temperature of Ageing Treatment is 185 ℃, and the temperature retention time of Ageing Treatment is 12 hours.
In extrusion process, the barrel end face will often be polished during extruding, conscientiously observes the magnesium alloy bar temperature, can not heat Tai Gao and magnesium rod fusing is caused burning, and temperature can not be too low and squeeze mould bad.The section bar that is extruded can not draw trace, scratches and turn round stubborn, and bubble can not be arranged, and adjusts hauling speed and keeps discharging straight; Magnesium alloy profiles wants sawing to become short section bar when being expressed to specific length, must not allow upset when moving material with decorative cover up before moving material after the sawing, does not allow to twitch, and as must twitch the time, should certain distance be arranged with other material, gently twitch.After the sawing, section bar length should be alignd, and the section bar end face can not jagged and stifled eye phenomenon.When carrying out Ageing Treatment, the trade mark of the thickness material of the magnesium alloy profiles of checking, the magnesium alloy profiles of different models can not same stove Ageing Treatment, machine should blow in earlier during Ageing Treatment, open heating tube again, the fire door of heat-treatment furnace can not leak out, in ag(e)ing process, observed the ruuning situation of a heat-treatment furnace every 20 minutes, and the temperature of observing automatic temperature-controlled instrument shows whether consistently with the glass tube temperature, close blower fan after closing heating tube earlier when timeliness finishes, open fire door section bar is pulled out cooling in stove, should open the gate, workshop when coming out of the stove, and carry out the timeliness record, after the material cooling, will check the hardness of section bar.
Two. as shown in Figure 2, magnesium alloy wheel rim moulding flow process comprises circle circle, cut-out, daub, dress pin, grafting, correction check, polishing, dashes or bore cylindrical void, valve hole, the every operation of typewriting.
1. circle is round
Confirm used section bar (specification length) before the circle circle earlier and roll mould and whether coincide, require the difference of moulding external diameter then according to the magnesium alloy circle, regulate the height of top roll, be transferred to the bolt that is locked behind the required height and position with the product of producing; Be to eliminate thread pitch, should transfer from the overgauge external diameter, roller is reduced gradually, and up to irising out the magnesium alloy circle, the magnesium alloy circle of being irised out is with overgauge circle external diameter 0.8-1.2MM, and is the best with overgauge circle external diameter 1MM.
2. cut off
Inspection cylindrical mould is correct earlier before cutting off, and then the magnesium circle is put into the cylindrical mould and is done inverse time battle array rotation, makes the downside stub bar push up positioning end, and makes the upside and inboard the applying well of magnesium circle, cuts off then, will check after the cut-out whether interface is straight, and is tight.
3. daub
Must be put on glue in two pin-and-holes of magnesium alloy ring cross-section during daub, can not be too much, in case glue enters pin-and-hole and influences product quality during surface treatment.
4. dress is sold
Will note selected pin specification during the dress pin, should measure the pin-and-hole diameter before the dress pin, general pin diameter is than the big 0.05～0.1MM of diameter of pin-and-hole.
5. peg graft
Check earlier during grafting whether steel band length conforms to magnesium circle specification with steel strip die, be that the magnesium alloy circle is put into steel strip die during concrete operations, adjust the front and back position of movable block height and adjustment piece, center height and movable block when pegging graft with assurance can successfully be held magnesium circle and steel band, note the center height when whether pressure die has guaranteed to peg graft simultaneously, after grafting is finished, check whether interface is straight, tightly reach the mismatch situation.
6. proofread and correct check
Should guarantee that the interface both sides are parallel after proofreading and correct check, no concave and convex phenomenon, the ovality of magnesium alloy circle and high-low side insight journey will meet algnment accuracy.
7. polishing
Check earlier before the polishing that the wheel rim cross sectional shape is consistent with middle throwing wheel pattern, check errorless after, the magnesium circle is put on the two supports wheel, adjusting activity support roller position, make the throwing of magnesium circle centre-height and both sides swing highly consistent, regulate contact roller the magnesium circle can be polished after vertical plane is stable, answer running check polishing quality in process of production.
8. towards cylindrical void
Should check earlier during towards cylindrical void whether mould is consistent with magnesium alloy circle model specification, note during punching going out a pair of cylindrical void on magnesium alloy circle interface both sides earlier, dash the quality of back inspection opening, bulging phenomenon must not have been arranged, pitch-row must be up to specification.
9. valve hole
Check earlier during valve hole whether the mould situation is good, and whether consistent with magnesium alloy circle model specification, the quality of dashing the back inspection opening must not be jagged, the hole site must be in magnesium alloy circle center, in the middle of two cylindrical voids.
10. typewriting:
Check earlier during typewriting whether mould is consistent with magnesium circle model specification, will check during typewriting whether font is clear, full location must be positioned in the middle of two cylindrical voids, line parallel in direction and the magnesium circle, it is crooked to have to.
Claims (3)
1. method of making bicycle rim with magnesium alloy profiles, it is characterized in that: the preparation method of described magnesium alloy bicycle rim comprises extruding and two flow processs of moulding:
The extrusion process flow process comprises magnesium alloy bar fracture, solid melt processed, magnesium alloy bar heating, mold heated, patrix, pan feeding, extruding, interruption sawing, moves material, every operation is put in scale sawing, Ageing Treatment, check, packing in storage;
The moulding process flow process comprises circle circle, cut-out, daub, dress pin, grafting, correction check, polishing, dashes or bore cylindrical void, valve hole, the every operation of typewriting;
Wherein, the extrusion process parameters in the described magnesium alloy profiles extrusion process flow process is:
The solid melt processed temperature of magnesium alloy bar: 300 ℃-410 ℃; Be incubated 24 hours;
Magnesium alloy bar heating-up temperature: 365 ℃-375 ℃; Be incubated 2 hours;
Magnesium alloy bar extrusion temperature: 350 ℃～360 ℃;
Extruding barrel temperature: 290 ℃-310 ℃;
Magnesium alloy bar extrusion speed: 3m-7m/min;
Mold heated temperature: 350 ℃～360 ℃
Aging temperature: 180 ℃-190 ℃; Be incubated 12 hours.
2. magnesium alloy profiles according to claim 1 is made the method for bicycle rim, and it is characterized in that: the extrusion process parameters in the described magnesium alloy profiles extrusion process flow process is:
The solid melt processed temperature of magnesium alloy bar: 400 ℃; Be incubated 24 hours;
Magnesium alloy bar heating-up temperature: 370 ℃; Be incubated 2 hours;
Magnesium alloy bar extrusion temperature: 355 ℃;
Extruding barrel temperature: 300 ℃;
Magnesium alloy bar extrusion speed: 5m/min;
Mold heated temperature: 355 ℃;
Aging temperature: 185 ℃; Be incubated 12 hours.
3. magnesium alloy profiles according to claim 1 is made the method for bicycle rim, it is characterized in that: the preparation method of described magnesium alloy bicycle rim requires to adopt the magnesium alloy of different series composition to make bicycle rim, and the specific series composition is as follows:
Magnalium series: 3-10%-Al, surplus Mg and impurity;
Magnalium zinc series: 3-10%-Al, 0.5-1%Zn, surplus Mg and impurity;
Magnalium manganese series: 3-10%-Al, 0.2-1%Mn, surplus Mg and impurity;
Magnesium zinc zirconium series: 0.5-1%Zn, 0.1-1%Zr, surplus Mg and impurity;
Magnesium rare earth metal: 1-3%Re, surplus Mg and impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100984463A CN100386175C (en) | 2005-09-08 | 2005-09-08 | Method for manufacturing bicycle rim by using magnesium alloy section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100984463A CN100386175C (en) | 2005-09-08 | 2005-09-08 | Method for manufacturing bicycle rim by using magnesium alloy section bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1736656A CN1736656A (en) | 2006-02-22 |
| CN100386175C true CN100386175C (en) | 2008-05-07 |
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| CNB2005100984463A Expired - Fee Related CN100386175C (en) | 2005-09-08 | 2005-09-08 | Method for manufacturing bicycle rim by using magnesium alloy section bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3808863A4 (en) * | 2018-05-18 | 2023-01-11 | Jurong Bailey Magnesium Alloy Material Technology Co., Ltd. | Magnesium alloy, preparation method for magnesium alloy profile, and preparation method for magnesium alloy rim |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388115B (en) * | 2012-05-07 | 2016-08-03 | 中国兵器工业第五九研究所 | A kind of preparation method of magnesium alloy with high strength and ductility bar |
| CN104014996B (en) * | 2014-06-03 | 2017-01-11 | 重庆东轻铝合金锻造有限公司 | Aluminum alloy annular blank manufacturing method and backward extruding die |
| CN106607665A (en) * | 2015-10-23 | 2017-05-03 | 中国兵器工业第五九研究所 | Forming method for magnesium alloy component |
| CN109385541A (en) * | 2018-09-14 | 2019-02-26 | 天津市大城伟业科技股份有限公司 | A method of bicycle rim is made with magnesium alloy profiles |
| CN113602040B (en) * | 2021-05-19 | 2023-05-23 | 深圳市美大行科技有限公司 | Bicycle rim manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106696A (en) * | 1984-11-07 | 1986-04-10 | 鹫兴产株式会社 | The manufacture method of light alloy wheel |
| JPH03184646A (en) * | 1989-12-13 | 1991-08-12 | Washi Kosan Kk | Manufacture device for forged one piece wheel of mg alloy |
| JPH03236452A (en) * | 1990-02-14 | 1991-10-22 | Sumitomo Metal Ind Ltd | Production of forged wheel made of magnesium alloy |
| DE19915277A1 (en) * | 1999-04-03 | 2000-10-05 | Volkswagen Ag | Magnesium alloy used e.g. in the manufacture of a wheel rim contains traces of cadmium, copper, iron, nickel and lanthanum and yttrium |
| JP2003053471A (en) * | 2001-08-14 | 2003-02-26 | Mazda Motor Corp | Wheel made of magnesium alloy for vehicle and method of manufacturing the same |
| US20040025977A1 (en) * | 2002-08-07 | 2004-02-12 | Schroepfer David J. | Wheel rim production method |
| JP2005008915A (en) * | 2003-06-17 | 2005-01-13 | Furukawa Sky Kk | Aluminum alloy plate for luminescent wheel rim and its production method |
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2005
- 2005-09-08 CN CNB2005100984463A patent/CN100386175C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106696A (en) * | 1984-11-07 | 1986-04-10 | 鹫兴产株式会社 | The manufacture method of light alloy wheel |
| JPH03184646A (en) * | 1989-12-13 | 1991-08-12 | Washi Kosan Kk | Manufacture device for forged one piece wheel of mg alloy |
| JPH03236452A (en) * | 1990-02-14 | 1991-10-22 | Sumitomo Metal Ind Ltd | Production of forged wheel made of magnesium alloy |
| DE19915277A1 (en) * | 1999-04-03 | 2000-10-05 | Volkswagen Ag | Magnesium alloy used e.g. in the manufacture of a wheel rim contains traces of cadmium, copper, iron, nickel and lanthanum and yttrium |
| JP2003053471A (en) * | 2001-08-14 | 2003-02-26 | Mazda Motor Corp | Wheel made of magnesium alloy for vehicle and method of manufacturing the same |
| US20040025977A1 (en) * | 2002-08-07 | 2004-02-12 | Schroepfer David J. | Wheel rim production method |
| JP2005008915A (en) * | 2003-06-17 | 2005-01-13 | Furukawa Sky Kk | Aluminum alloy plate for luminescent wheel rim and its production method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3808863A4 (en) * | 2018-05-18 | 2023-01-11 | Jurong Bailey Magnesium Alloy Material Technology Co., Ltd. | Magnesium alloy, preparation method for magnesium alloy profile, and preparation method for magnesium alloy rim |
| IL278810B1 (en) * | 2018-05-18 | 2024-08-01 | Jurong Bailey Magnesium Alloy Material Tech Co Ltd | Magnesium alloy, preparation method for magnesium alloy profile, and preparation method for magnesium alloy rim |
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| CN1736656A (en) | 2006-02-22 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tangshan Hengli Vehicle Parts Co., Ltd. Assignor: Yu Keru Contract fulfillment period: 2008.10.25 to 2026.2.17 contract change Contract record no.: 2008990001088 Denomination of invention: Method for producing bicycle wheel fellone using magnesium alloy section bar Granted publication date: 20080507 License type: Exclusive license Record date: 2008.11.4 |
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