CN1931474A - Casting process of copper squirrel rotor - Google Patents
Casting process of copper squirrel rotor Download PDFInfo
- Publication number
- CN1931474A CN1931474A CN 200610103484 CN200610103484A CN1931474A CN 1931474 A CN1931474 A CN 1931474A CN 200610103484 CN200610103484 CN 200610103484 CN 200610103484 A CN200610103484 A CN 200610103484A CN 1931474 A CN1931474 A CN 1931474A
- Authority
- CN
- China
- Prior art keywords
- copper
- centrifuge
- stove
- cage rotor
- cast
- 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.)
- Granted
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000010949 copper Substances 0.000 title claims abstract description 36
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 36
- 238000005266 casting Methods 0.000 title claims abstract description 20
- 241000555745 Sciuridae Species 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000003723 Smelting Methods 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003085 diluting agent Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Landscapes
- Induction Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The casting process of copper squirrel cage rotor includes the following steps: 1. pre-treating silicon steel sheet through heating in a furnace a 500-600 deg.c and cooling outside the furnace to form oxide film automatically; 2. laminating, pressing and installing mold; 3. heating the pressed silicon sheets inside furnace to 650-750 deg.c, and setting in a centrifuge; 4. smelting copper material; 5. casting to the squirrel cage groove and mold cavity while turning on the centrifuge to exhaust air; and cooling outside the furnace. The present invention has the advantages of power saving of motor, reduced motor size, saving in material, low cost, etc.
Description
Technical field
The present invention relates to a kind of cage rotor of threephase asynchronous, specifically is a kind of casting method that existing cast-in aluminum squirrel cage rotor is changed into the cast copper cage rotor.
Background technology
Also not having at present a family to adopt the cage rotor of phase asynchronous induction conductivity at home and abroad is copper cage rotor, and this is because cast-aluminum rotor changes copper casting rotor into and has following technological difficulties:
1, the copper fusion process will produce oxidation in a large number above 1200 ℃, and the many more pouring flow rates of oxidation are poor more, many pores or short circuit will occur, do not reach the job requirement and the standard of cage rotor.
2, the flow velocity of copper is relatively poor, the casting of the elongated shape of mouse cage is difficult to finish, and produces bubble easily in casting cycle, produces sand holes in foundry goods, influences the service behaviour of motor.
Summary of the invention
Purpose of the present invention just provides a kind of casting method of copper cage rotor, to solve the easy oxidation and influence casting quality when the high temperature of the copper that exists in the cast copper cage rotor process; And, in casting cycle, produce bubble and produce the problem of sand holes owing to the relatively poor casting that causes being difficult to finish elongated shape of the flow velocity of copper.
In order to reach the foregoing invention purpose, the technical scheme that the present invention takes is: may further comprise the steps:
(1) silicon steel sheet preliminary treatment: go into stove and be heated to 500 ℃～600 ℃, come out of the stove then and put cold its surface generation oxide-film automatically that makes;
(2) closed assembly pressing and installation mold;
(3) silicon steel sheet of pressing is gone into stove and be heated to 650 ℃～750 ℃, put into centrifuge then;
(4) melting copper material;
(5) be cast to the cage grooves and the mold cavity of the high temperature silicon steel disc of putting into centrifuge, start the exhaust of centrifuge high speed rotating;
(6) come out of the stove put cold.
The composition by weight that described copper material package contains is: silizin 100, purple copper 79, silicon 3, zinc 17, phosphor-copper 1.
In described melting copper material step, when reaching 800 ℃, temperature adds coverture alkali or borax; Cast when the diluent phosphor-copper that when temperature reaches 1000 ℃, adds 0.5%～2% part by weight, smelting temperature to 1200 ℃.
The rotating speed of described centrifuge rotation exhaust is 2800 rev/mins, and the time is 3～5 minutes, and the steam vent of mould increases about one times than the steam vent aperture of cast aluminium.
Advantage of the present invention is:
1, motor can energy-conservation 10%～15% in when operation.
2, the volume of the motor of equal-wattage can reduce approximately 20%, saves shell and permeability magnetic material (silicon steel sheet) material and saves 15%～20% approximately, and the aluminium interconnected cage motor of the cost of complete machine and equal-wattage remains basically stable.
3, compare with the aluminium interconnected cage motor of same size, increase power 7%～10%.
4, save certain workman and numerous and diverse technology reduction labour intensity.
Below in conjunction with embodiment the present invention is described in further detail.
The specific embodiment
A specific embodiment of the present invention is:
(1) moulding that will the not fit together silicon steel sheet that has a cage grooves is gone into stove and is heated to 530 ℃.
(2) come out of the stove nature cooling produces oxide-film automatically on the surface of silicon steel sheet.
(3) assembling is pressed into the cage rotor body, and casting mould is installed, and the shape of this mould is identical with existing cast aluminium, is 2 times that the aperture of steam vent is about cast-aluminum die.
(4) the firm sheet of rotor silicon is gone into and is put into supercentrifuge after stove is heated to 700 ℃;
(5) melting copper material: the copper material package contains: silizin 100Kg, purple copper 79Kg, silicon 3Kg, zinc 17Kg.Above-mentioned material is put into the stove melting, when temperature reaches 800 ℃, add 2%-6% coverture alkali or borax; When temperature reaches 1000 ℃, add 1Kg phosphor-copper (account for gross weight 0.5%～2%) as diluent, begin cast during smelting temperature to 1200 ℃.The effect of coverture is the oxidation that prevents material, and the effect of diluent is the flowability that increases copper water.
(6) melted copper water is cast to the cage grooves and the mold cavity of the high temperature silicon steel disc of putting into centrifuge, start the exhaust of centrifuge high speed rotating, the rotating speed of centrifuge is 2800 rev/mins, and the time is 3～5 minutes, and short circuit or pore phenomenon just can not appear in internal rotor.The nature of coming out of the stove then cooling.
In order to check the weight of cast copper, carry out routine inspection (providing Interventions Requested) from the foundry goods section, qualification rate is reaching more than 90%.
The phase asynchronous induction electric machine rotor of the present invention casting is the major ingredient casting with brass and red copper, and it is fast to have conduction, shrinks for a short time, and the rear stability of casting is good, can not occur becoming flexible energy-efficient characteristics.
Power savings of the present invention and Economic and Efficiency Analysis are as follows:
The resistance of aluminium 1km in the time of 15 ℃: aluminium resistance 27.7 peaces (annotate: the unit of resistance should be " ohm "); The resistance of the copper of same cross-sectional and length in the time of 15 ℃ is 17.47 ohm.The resistance of 1km in the time of 75 ℃: 34.6 ohm of aluminium resistance, 21.7 ohm of copper resistances.This shows that the impedance power consumption of the copper of same case greatly reduces.
Because the impedance of copper power consumption greatly reduces, make the power consumption of copper rotor motor of equal-wattage obviously reduce than the power consumption of aluminium rotor electromotor, be described as follows for example with 5.5kw motor (rotating speed is 4 grades, promptly 1440 rev/mins):
(1) aluminium rotor electromotor power consumption 5.5 degree electricity per hour, 0.5 yuan/every degree of unit price, per hour totally 2.75 yuan.
(2) copper rotor motor power consumption 4～4.2 degree per hour, energy savings 1.3 degree.Calculate 0.5 yuan/every degree by average electricity price, per hour can economize on electricity 0.65 yuan.
Claims (4)
1, a kind of casting method of copper cage rotor is characterized in that: may further comprise the steps:
(1) silicon steel sheet preliminary treatment: go into stove and be heated to 500 ℃～600 ℃, need to continue 2 hours, come out of the stove then and put cold its surface generation oxide-film automatically that makes;
(2) closed assembly pressing and installation mold;
(3) silicon steel sheet of pressing is gone into stove and be heated to 650 ℃～750 ℃, put into centrifuge then;
(4) melting copper material;
(5) be cast to the cage grooves and the mold cavity of the high temperature silicon steel disc of putting into centrifuge, start the exhaust of centrifuge high speed rotating;
(6) come out of the stove put cold.
2, the casting method of copper cage rotor according to claim 1 is characterized in that: the composition by weight that described copper material package contains is: silizin 100, purple copper 79, silicon 3, zinc 17, phosphor-copper 1.
3, the casting method of copper cage rotor according to claim 1 is characterized in that: in described melting copper material step, add 2%-6% coverture alkali or borax when temperature reaches 800 ℃; Cast when the diluent phosphor-copper that when temperature reaches 1000 ℃, adds 0.5%～2% part by weight, smelting temperature to 1200 ℃.
4, the casting method of copper cage rotor according to claim 1 is characterized in that: the rotating speed of described centrifuge rotation exhaust is 2800 rev/mins, and the time is 3～5 minutes, and the steam vent of mould increases about one times than the steam vent aperture of cast aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101034848A CN100423414C (en) | 2006-07-25 | 2006-07-25 | Casting process of copper squirrel rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101034848A CN100423414C (en) | 2006-07-25 | 2006-07-25 | Casting process of copper squirrel rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1931474A true CN1931474A (en) | 2007-03-21 |
| CN100423414C CN100423414C (en) | 2008-10-01 |
Family
ID=37877577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101034848A Expired - Fee Related CN100423414C (en) | 2006-07-25 | 2006-07-25 | Casting process of copper squirrel rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100423414C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462455C (en) * | 2007-08-24 | 2009-02-18 | 云南铜业压铸科技有限公司 | Method for smelting pure copper or high-copper alloy raw material |
| CN100493777C (en) * | 2007-08-24 | 2009-06-03 | 云南铜业压铸科技有限公司 | Die-casting method of induction motor copper cage rotor and die casting device thereof |
| CN105880521A (en) * | 2016-05-03 | 2016-08-24 | 宋照峰 | Casting method of copper rotor |
| CN105964971A (en) * | 2016-05-27 | 2016-09-28 | 宋照峰 | Vacuum semi-solid copper rotor die-casting method |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
| CN109207981A (en) * | 2018-01-04 | 2019-01-15 | 福建浦汇科技发展有限公司 | A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling |
| CN113245532A (en) * | 2021-04-12 | 2021-08-13 | 广州万宝电机有限公司 | Rotor machining method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122065A (en) * | 1994-10-26 | 1996-05-08 | 富士电机株式会社 | Method for low pressure casti squirrel-cage rotator |
| CN1054559C (en) * | 1995-09-28 | 2000-07-19 | 沈阳电机厂 | Spun casting method for cast-aluminium rotor of large-size electric motor |
| JPH10174389A (en) * | 1996-12-12 | 1998-06-26 | Hitachi Ltd | Cage rotor and its manufacture |
| CN1627610A (en) * | 2003-12-12 | 2005-06-15 | 乐金电子(天津)电器有限公司 | Cage shaped rotor in motor, and manufacturing method |
-
2006
- 2006-07-25 CN CNB2006101034848A patent/CN100423414C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462455C (en) * | 2007-08-24 | 2009-02-18 | 云南铜业压铸科技有限公司 | Method for smelting pure copper or high-copper alloy raw material |
| CN100493777C (en) * | 2007-08-24 | 2009-06-03 | 云南铜业压铸科技有限公司 | Die-casting method of induction motor copper cage rotor and die casting device thereof |
| CN105880521A (en) * | 2016-05-03 | 2016-08-24 | 宋照峰 | Casting method of copper rotor |
| CN105880521B (en) * | 2016-05-03 | 2018-09-14 | 宋照峰 | Copper rotor casting method |
| CN105964971A (en) * | 2016-05-27 | 2016-09-28 | 宋照峰 | Vacuum semi-solid copper rotor die-casting method |
| CN109207981A (en) * | 2018-01-04 | 2019-01-15 | 福建浦汇科技发展有限公司 | A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
| CN113245532A (en) * | 2021-04-12 | 2021-08-13 | 广州万宝电机有限公司 | Rotor machining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100423414C (en) | 2008-10-01 |
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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 | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Xisheng Document name: Notification to Pay the Fees |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190103 Address after: 466600 South Side of Honghua-Aigang Highway, Xihua County, Henan Province (Aigang Forest Farm) Patentee after: Henan Fushun Electromagnetic Technology Co.,Ltd. Address before: 473000 Zhongjing Road 227, Wancheng District, Nanyang City, Henan Province Patentee before: Zhou Shuangcai Effective date of registration: 20190103 Address after: 473000 Zhongjing Road 227, Wancheng District, Nanyang City, Henan Province Patentee after: Zhou Shuangcai Address before: 473000 Hongwei Village 182, Wancheng District, Nanyang City, Henan Province Patentee before: Zhou Xisheng |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Xisheng Document name: Notification of Passing Examination on Formalities |
|
| CI03 | Correction of invention patent | ||
| CI03 | Correction of invention patent |
Correction item: Patentee|Address Correct: Henan Fushun Electromagnetic Technology Co., Ltd.|466600 South Side of Honghua-Aigang Highway, Xihua County, Henan Province (Aigang Forest Farm) False: Henan Fushun Electromagnetic Technology Co., Ltd.|466600 South Side of Honghua-Aigang Highway, Xihua County, Henan Province (Aigang Forest Farm) Number: 04-01 Volume: 35 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20190725 |