WO2012088646A1 - Die forging method for collector ring fan - Google Patents
Die forging method for collector ring fan Download PDFInfo
- Publication number
- WO2012088646A1 WO2012088646A1 PCT/CN2010/002239 CN2010002239W WO2012088646A1 WO 2012088646 A1 WO2012088646 A1 WO 2012088646A1 CN 2010002239 W CN2010002239 W CN 2010002239W WO 2012088646 A1 WO2012088646 A1 WO 2012088646A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- forging
- collector ring
- temperature
- equal
- fan
- Prior art date
Links
- 238000005242 forging Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005496 tempering Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000000137 annealing Methods 0.000 claims abstract description 3
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/36—Making machine elements wheels; discs with blades
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/10—Manufacture of slip-rings
Definitions
- the present invention relates to the field of collector ring manufacturing technology, and in particular to a die forging method of a collector ring fan.
- the collector ring fan plays the role of input/output current and commutation in the motor.
- This collector ring is usually made of cast copper. However, the mechanical characteristics of the cast ring are poor, which directly affects the motor. For the service life, the collector ring is generally 7200 rpm in the application. Under such high speed operation, the collector ring is easily cracked and damaged.
- the present invention uses a die forging method to die forging into a blank of a collector ring fan, and then forms a collector ring fan after the fan blade passage.
- the present invention provides a die forging method for a collector ring fan, which is characterized in that the following processing steps are employed: (1) blanking forging: the initial forging temperature is i ioo °c, and the final forging temperature is 850 ° C After the steel ingot is thick and lengthened to the forging ratio, after cutting to the required size, forging pressure is 6 X 10 6 Kg, and the collector ring body is forged once; (2) After forging heat treatment: furnace cooling (4) Quenching and tempering: The furnace temperature is 400 ° C, the temperature is raised to 940 ⁇ 10 ° C, and the workpiece is cooled to below 100 ° C for tempering treatment. The tempering treatment is 640 ° C.
- the collector ring prepared by the forging method has a tensile strength of R m 800 ⁇ 1000 MPa, yield strength R p 0.2 700 MPa, elongation A 4 12% after forging and quenching. , the section shrinkage rate Z 40%, impact work AKV 40J, it can be seen that its mechanical properties are significantly improved, extending the service life of the collector ring.
- FIG. 1 is a schematic view showing the structure of a collector ring fan blank in an embodiment of the present invention.
- Fig. 2 is a structural schematic view of the collector ring fan body of Fig. 1 after machining a fan blade passage through a numerically controlled vertical car.
- Fig. 3 is a perspective view showing the structure of a collector ring fan in the present invention.
- Fig. 4 is a cross-sectional view taken along line A-A of Fig. 2;
- Fig. 5 is a cross-sectional view taken along line P-P of Fig. 2;
- Blanking forging Control the initial forging temperature to 1100 °C, the final forging temperature is 850 °C, the steel ingots are thick and lengthened, after reaching the required forging ratio, then cut to the required size, and then forged at 6X10 6 Kg Pressure, one-time forming and forging of the collector ring fan blank;
- the forged collector ring fan body is subjected to post-forging heat treatment: annealing in a furnace cooling manner; Quenching and tempering treatment: first control the furnace temperature 400 ° C, heat up to 940 ⁇ 10 ° C for quenching treatment, and then the workpiece is cooled to below 100 ° C, and then tempered, that is, below 640 ° C Air cooling
- the CNC vertical car is used to drive the fan blade passage on the collector ring fan body, and finally the finished product collector ring fan is finished.
- the tensile strength of the collector ring fan material reaches R m 800 ⁇ lOOOOMPa, yield strength R p 0.2 700MPa, elongation A 4 12%, section shrinkage ⁇ 40%, impact work AKV 40J, current collection
- the mechanical properties are obviously improved, which greatly prolongs the service life of the collector ring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A die forging method for collector ring fan involves the following steps: with the initial forging temperature of 1100 DEG C, the final forging temperature of 850 DEG C and forging pressure of 6×106Kg, forging out a collector ring fan blank body by one-step molding; annealing in a furnace-cooling manner; rising the temperature to 940 plus or minus 10 DEG C from the temperature of a furnace of 400 DEG C, and carrying out tempering treatment after a workpiece is cooled to be below 100 DEG C, the tempering treatment is air-cooling below 640 DEG C; machining a fan blade channel by a numerical control vertical lathe; and finish machining. The collector ring produced by the forging method has tensile strength Rm of 800-1000MPa, yield strength Rp0.2 greater than or equal to 700MPa, elongation A4 greater than or equal to 12 percent, reduction Z of cross section greater than or equal to 40 percent and the impact power AKV greater than or equal to 40J, therefore, the mechanical performance is improved and the service life is prolonged.
Description
一种集电环风扇的模锻方法 Die forging method of collector ring fan
[技术领域] [Technical field]
本发明涉及集电环制造技术领域，尤其涉及一种集电环风扇的模 锻方法。 The present invention relates to the field of collector ring manufacturing technology, and in particular to a die forging method of a collector ring fan.
[背景技术] [Background technique]
集电环风扇在电机中起着输入 /输出电流和换向的作用，这种集 电环一般采用浇铸铜精加工而成，然而浇铸出来的集电环机械性能较 差， 直接影响着电机的使用寿命， 集电环在应用中一般为 7200转 / 分， 在这种高速的运转下， 很容易造成集电环开裂损坏。 The collector ring fan plays the role of input/output current and commutation in the motor. This collector ring is usually made of cast copper. However, the mechanical characteristics of the cast ring are poor, which directly affects the motor. For the service life, the collector ring is generally 7200 rpm in the application. Under such high speed operation, the collector ring is easily cracked and damaged.
[发明内容] [Summary of the Invention]
本发明为克服现有技术的不足，采用模锻方法一次模锻成集电环 风扇的坯体， 再金工出风扇叶片通道后形成集电环风扇。 In order to overcome the deficiencies of the prior art, the present invention uses a die forging method to die forging into a blank of a collector ring fan, and then forms a collector ring fan after the fan blade passage.
为实现上述目的， 本发明设计一种集电环风扇的模锻方法， 其特 征在于采用如下加工步骤： （1 ) 落料锻造： 始锻温度为 i ioo°c， 终 锻温度为 850°C，将钢锭墩粗、拔长达到锻造比后， 切至所需尺寸后， 以 6 X 106Kg锻造压力， 一次成形锻出集电环风扇坯体； （2)锻后热 处理： 以炉冷方式进行退火； （4) 淬火和回火： 进炉温度 400°C， 升温至 940± 10°C， 待工件冷却至 100°C以下进行回火处理， 所述的 回火处理是 640°C以下空冷； （5 )数控立车加工风扇叶片通道； （6) 精加工。
本发明与现有技术相比， 采用锻造方法制备的集电环， 其材料经 锻造调质后， 抗拉强度达到 Rm800〜1000MPa， 屈服强度 Rp0.2 700 MPa, 延伸率 A4 12%， 断面收縮率 Z 40%， 冲击功 AKV 40J, 可 见其机械性能明显提高， 延长了集电环的使用寿命。 In order to achieve the above object, the present invention provides a die forging method for a collector ring fan, which is characterized in that the following processing steps are employed: (1) blanking forging: the initial forging temperature is i ioo °c, and the final forging temperature is 850 ° C After the steel ingot is thick and lengthened to the forging ratio, after cutting to the required size, forging pressure is 6 X 10 6 Kg, and the collector ring body is forged once; (2) After forging heat treatment: furnace cooling (4) Quenching and tempering: The furnace temperature is 400 ° C, the temperature is raised to 940 ± 10 ° C, and the workpiece is cooled to below 100 ° C for tempering treatment. The tempering treatment is 640 ° C. The following air cooling; (5) CNC vertical lathe processing fan blade passage; (6) Finishing. Compared with the prior art, the collector ring prepared by the forging method has a tensile strength of R m 800~1000 MPa, yield strength R p 0.2 700 MPa, elongation A 4 12% after forging and quenching. , the section shrinkage rate Z 40%, impact work AKV 40J, it can be seen that its mechanical properties are significantly improved, extending the service life of the collector ring.
[附图说明] [Description of the Drawings]
图 1是本发明实施例中集电环风扇坯体结构示意图。 1 is a schematic view showing the structure of a collector ring fan blank in an embodiment of the present invention.
图 2是由图1中集电环风扇坯体经数控立车加工出风扇叶片通道 后的结构示意图。 Fig. 2 is a structural schematic view of the collector ring fan body of Fig. 1 after machining a fan blade passage through a numerically controlled vertical car.
图 3是本发明中集电环风扇的立体结构示意图。 Fig. 3 is a perspective view showing the structure of a collector ring fan in the present invention.
图 4是图 2所示的 A-A向剖示图。 Fig. 4 is a cross-sectional view taken along line A-A of Fig. 2;
图 5是图 2所示的 P-P向剖示图。 Fig. 5 is a cross-sectional view taken along line P-P of Fig. 2;
[具体实施方式] [detailed description]
下面结合附图对本发明做进一步的描述。 The invention will be further described below in conjunction with the accompanying drawings.
落料锻造： 控制始锻温度为 1100°C， 终锻温度为 850°C， 将钢锭 墩粗、 拔长， 达到所需锻造比后， 再切至所需大小， 再以 6X106Kg 的锻造压力， 一次成形锻出集电环风扇坯体； Blanking forging: Control the initial forging temperature to 1100 °C, the final forging temperature is 850 °C, the steel ingots are thick and lengthened, after reaching the required forging ratio, then cut to the required size, and then forged at 6X10 6 Kg Pressure, one-time forming and forging of the collector ring fan blank;
将锻出的集电环风扇坯体进行锻后热处理：以炉冷的方式进行退 火；
再进行淬火和回火处理： 先控制进炉温度 400°C, 升温至 940 ±10°C进行淬火处理， 然后待工件冷却至 100°C以下， 再进行回火处 理， 即在 640°C以下空冷； The forged collector ring fan body is subjected to post-forging heat treatment: annealing in a furnace cooling manner; Quenching and tempering treatment: first control the furnace temperature 400 ° C, heat up to 940 ± 10 ° C for quenching treatment, and then the workpiece is cooled to below 100 ° C, and then tempered, that is, below 640 ° C Air cooling
经金工和超声波探伤选出合格的经过热处理的集电环坯体后，采 用数控立车在集电环风扇坯体上车出风扇叶片通道，最后经精加工得 成品集电环风扇。 After selecting the qualified heat-treated collector ring blank by metallurgy and ultrasonic flaw detection, the CNC vertical car is used to drive the fan blade passage on the collector ring fan body, and finally the finished product collector ring fan is finished.
经过上述锻造工艺后，集电环风扇材料的抗拉强度达到 Rm800〜 lOOOMPa, 屈服强度 Rp0.2 700MPa， 延伸率 A4 12%， 断面收縮 率∑ 40%， 冲击功 AKV 40J， 集电环风扇经 3600r/min， 2min单独 超速试验后，均未发生开裂疲劳现象，可见其机械性能明显得到提高， 大大延长了集电环的使用寿命。
After the above forging process, the tensile strength of the collector ring fan material reaches R m 800~ lOOOOMPa, yield strength R p 0.2 700MPa, elongation A 4 12%, section shrinkage ∑ 40%, impact work AKV 40J, current collection After the ring fan was tested at 3600r/min and 2min alone, no cracking fatigue occurred. It can be seen that the mechanical properties are obviously improved, which greatly prolongs the service life of the collector ring.
Claims
权利要求 Rights request
一种集电环风扇的模锻方法，其特征在于采用如下加工步骤： ( 1 ) 落料锻造： 始锻温度为 1100°C， 终锻温度为 850°C， 将钢锭墩粗、 拔 长达到锻造比后， 切至所需尺寸后， 以 6 X 106 Kg锻造压力， 一次成 形锻出集电环风扇坯体； （2) 锻后热处理： 以炉冷方式进行退火； A die forging method for collector ring fans, characterized by adopting the following processing steps: (1) Blanking forging: The initial forging temperature is 1100°C, the final forging temperature is 850°C, and the steel ingot pier is thickened and lengthened to After the forging ratio, after cutting to the required size, the collector ring fan body is forged in one step with a forging pressure of 6 × 106 Kg; (2) Post-forging heat treatment: annealing by furnace cooling;
(4)淬火和回火： 进炉温度 400° ( ， 升温至 940± 10°C， 待工件冷却 至 100°C以下进行回火处理，所述的回火处理是 640Ό以下空冷； （5 ) 数控立车加工风扇叶片通道； （6) 精加工。
(4) Quenching and tempering: Enter the furnace at a temperature of 400°C, raise the temperature to 940±10°C, and wait until the workpiece is cooled to below 100°C for tempering treatment. The tempering treatment is air cooling below 640°C; (5) CNC vertical lathe processing of fan blade channels; (6) Finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/002239 WO2012088646A1 (en) | 2010-12-31 | 2010-12-31 | Die forging method for collector ring fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/002239 WO2012088646A1 (en) | 2010-12-31 | 2010-12-31 | Die forging method for collector ring fan |
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| Publication Number | Publication Date |
|---|---|
| WO2012088646A1 true WO2012088646A1 (en) | 2012-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2010/002239 WO2012088646A1 (en) | 2010-12-31 | 2010-12-31 | Die forging method for collector ring fan |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11341746A (en) * | 1998-05-28 | 1999-12-10 | Ryobi Ltd | Commutator |
| CN1546279A (en) * | 2003-12-15 | 2004-11-17 | 南昌大学 | Plane hook shaped reverser integral cold-forging processing method |
| CN101011792A (en) * | 2007-02-08 | 2007-08-08 | 范承祥 | Manufacturing method for annular forging piece |
| CN101295851A (en) * | 2007-04-27 | 2008-10-29 | 上海法雷奥汽车电器系统有限公司 | Collecting ring used for alternating-current generator and manufacturing method thereof |
| CN101764334A (en) * | 2010-01-12 | 2010-06-30 | 上海昌强电站配件有限公司 | Die forging method of collector ring fan |
-
2010
- 2010-12-31 WO PCT/CN2010/002239 patent/WO2012088646A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11341746A (en) * | 1998-05-28 | 1999-12-10 | Ryobi Ltd | Commutator |
| CN1546279A (en) * | 2003-12-15 | 2004-11-17 | 南昌大学 | Plane hook shaped reverser integral cold-forging processing method |
| CN101011792A (en) * | 2007-02-08 | 2007-08-08 | 范承祥 | Manufacturing method for annular forging piece |
| CN101295851A (en) * | 2007-04-27 | 2008-10-29 | 上海法雷奥汽车电器系统有限公司 | Collecting ring used for alternating-current generator and manufacturing method thereof |
| CN101764334A (en) * | 2010-01-12 | 2010-06-30 | 上海昌强电站配件有限公司 | Die forging method of collector ring fan |
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