CN110311516A - Cover die and its processing method in casting aluminum rotor - Google Patents
Cover die and its processing method in casting aluminum rotor Download PDFInfo
- Publication number
- CN110311516A CN110311516A CN201910618552.1A CN201910618552A CN110311516A CN 110311516 A CN110311516 A CN 110311516A CN 201910618552 A CN201910618552 A CN 201910618552A CN 110311516 A CN110311516 A CN 110311516A
- Authority
- CN
- China
- Prior art keywords
- rotor
- cover die
- mould body
- casting aluminum
- set mould
- 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.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000005266 casting Methods 0.000 title claims abstract description 19
- 238000003672 processing method Methods 0.000 title claims description 5
- 239000004411 aluminium Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses cover dies in a kind of casting aluminum rotor, which is characterized in that does the middle set mould body of Nitrizing Treatment including surface, is evenly equipped on the inner wall of middle set mould body and a plurality of avoids the air discharge duct that molten aluminum is overflowed during cast aluminium.The present invention improves the quality of casting aluminum rotor, and product qualification rate reaches 98%, avoids the spilling of rotor surface aluminum water, reduces the workload of rotor turning, lays the foundation for qi of chong channel ascending adversely gap technique, eliminates turning rotor process, improve production efficiency.
Description
Technical field
The present invention relates to cover die and its processing methods in a kind of casting aluminum rotor, are used in motor cast-aluminum process fabrication scheme,
Belong to middle and small motor manufacturing technology field.
Background technique
Traditional smart car rotor outer circle technique, lathe tool interrupted cut, abrasion is very fast, increases tool sharpening and mounting and adjusting
Time, reduce working efficiency.And after smart car rotor outer circle, it will form pawl, reviewing and burr and cause to glue between piece
Even, rotor surface generates loss because of vortex, reduces electric efficiency.When turning simultaneously iron filings, aluminium skimmings be easily accessible notch and
In radial passage, it is difficult to clear up, destroy rotor insulation between plates, increase rotor loss, influence motor reliability service.Currently,
High-voltage motor copper bar rotor due to using lamination process or small machine using completing qi of chong channel ascending adversely gap technique by the way of the grading punching of high speed, this
The technological measure that a little schemes are taken just for special rotor and high-volume motor, and to the conventional motor of multi items, small lot,
Then also use the technique of vehicle air gap.
Traditional Cast Aluminum Dies have that venting quality difference and aluminum water are excessive in casting aluminum rotor, and exhaust difference will lead to casting
The problems such as aluminium rotor cold shut, broken strip, generates, and directly affects cast-aluminum rotor quality, the loss of electric machine is caused to increase, and the excessive meeting of aluminum water
So that aluminium is wrapped in rotor surface, the vehicle aluminium from outside of turning round is needed due to needing turning to will increase rotor loss, and cause to rush
The failure of air gap technique.
Summary of the invention
The technical problem to be solved by the present invention is solving the venting quality for how improving Cast Aluminum Dies and avoiding aluminum water excessive
The problem of.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide cover dies in a kind of casting aluminum rotor, special
Sign is, the middle set mould body of Nitrizing Treatment is done including surface, is evenly equipped on the inner wall of middle set mould body and a plurality of avoids cast aluminium mistake
The air discharge duct that molten aluminum is overflowed in journey.
Preferably, the quantity of the air discharge duct and the slot number of rotor core are equal.
Preferably, the internal diameter of the middle set mould body is D=D1+K；D1 is 2 outer diameter of rotor core；K is air discharge duct
Depth.
Preferably, the depth of the air discharge duct is 0.08~0.1mm.
Preferably for seat No. H225 rotor below, the depth of the air discharge duct is 0.03~0.05mm；
For the rotor of H225 or more, the depth of the air discharge duct is 0.08~0.1mm.
Preferably, the material of the middle set mould body is heated die steel H13.
The processing method of cover die in a kind of casting aluminum rotor, comprising the following steps: the middle set mould body is heated to 600
~700 degrees Celsius, it is heat-treated to surface hardness 38-42HRC, the surface of middle set mould body is then subjected to Nitrizing Treatment, so that
The inner wall hardness of middle set mould body reaches 68-72HRC.
The present invention proposes cover die suitable material in selection, and processes air discharge duct on middle cover die, improves casting aluminum rotor
Quality, product qualification rate reaches 98%, avoids the spilling of rotor surface aluminum water, reduces the workload of rotor turning, for punching
Air gap technique lays the foundation, and eliminates turning rotor process, improves production efficiency.
Detailed description of the invention
Fig. 1 is the cross-sectional view of motor cast-aluminum mould main view；
Fig. 2 is a kind of main view of cover die in casting aluminum rotor.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment 1
As shown in Figure 1, the Cast Aluminum Dies of motor are made of upper cover die 1, rotor core 2, middle cover die 3, dummy shaft 4, lower cover die 5,
Be equipped with dummy shaft 4 in rotor core 2, the outside of rotor core 2 is equipped with middle cover die 3, rotor core 2 and middle cover die 3 it is whole up and down
Both ends are connect with upper cover die 1, lower cover die 5 respectively.Rotor in cast aluminium, due to temperature of aluminum liquid height, cast aluminium speed is fast, such as cannot and
When be vented, will cause defect.
The Material handling processes of middle cover die of the invention are as follows:
After middle cover die 3 processes, 600~700 degrees Celsius are first heated to, is heat-treated to surface hardness 40HRC or so,
Then the surface of middle set mould body 31 is subjected to Nitrizing Treatment, after Nitrizing Treatment, the inner wall hardness of middle set mould body 31 reaches
70HRC or so, both heat resistance, wearability and corrosion resistance enhancing, and gas discharge in rotor slot when can improve cast aluminium.
Cover die (cover die 3 in i.e.) in a kind of casting aluminum rotor provided by the invention, as shown in Figure 2 comprising middle set mould body
31, in order to avoid the spilling of molten aluminum during cast aluminium, middle 31 internal diameter of set mould body is worked into close to 2 outer diameter D of rotor core, 1 size
Afterwards, the air discharge duct 32 that, depth equal with 2 slot number of rotor core is 0.08~0.1mm is processed on middle 31 inner wall of set mould body.
The material of middle set mould body 31 is heated die steel H13.
By the internal diameter of cover die 3 in cast aluminium are as follows: D=D1+K；
Wherein: D1 is 2 outer diameter of rotor core；
K is the depth of air discharge duct 32: rotor below for seat No. H225 takes 0.03~0.05mm；For machine
The rotor of seat number H225 or more, takes 0.08~0.1mm.In the present embodiment, K 0.03mm.
Embodiment 2
In the present embodiment, the Material handling processes of middle cover die of the invention are as follows:
After middle cover die 3 processes, 600~700 degrees Celsius are first heated to, is heat-treated to surface hardness 38HRC or so,
Then the surface of middle set mould body 31 is subjected to Nitrizing Treatment, after Nitrizing Treatment, the inner wall hardness of middle set mould body 31 reaches
68HRC or so, both heat resistance, wearability and corrosion resistance enhancing, and gas discharge in rotor slot when can improve cast aluminium.K
For 0.05mm.
Other are same as Example 1.
Embodiment 3
In the present embodiment, the Material handling processes of middle cover die of the invention are as follows:
After middle cover die 3 processes, 600~700 degrees Celsius are first heated to, is heat-treated to surface hardness 42HRC or so,
Then the surface of middle set mould body 31 is subjected to Nitrizing Treatment, after Nitrizing Treatment, the inner wall hardness of middle set mould body 31 reaches
72HRC or so, both heat resistance, wearability and corrosion resistance enhancing, and gas discharge in rotor slot when can improve cast aluminium.K
For 0.08mm.
Other are same as Example 1.
Embodiment 3
In the present embodiment, K 0.1mm.
Other are same as Example 1.
Claims (7)
1. cover die in a kind of casting aluminum rotor, which is characterized in that do the middle set mould body (31) of Nitrizing Treatment, middle cover die including surface
It is evenly equipped on the inner wall of ontology (31) and a plurality of avoids the air discharge duct (32) that molten aluminum is overflowed during cast aluminium.
2. cover die in a kind of casting aluminum rotor as described in claim 1, which is characterized in that the quantity of the air discharge duct (32) with
The slot number of rotor core (2) is equal.
3. cover die in a kind of casting aluminum rotor as described in claim 1, which is characterized in that the middle set mould body (31) it is interior
Diameter is D=D1+K；D1 is 2 outer diameter of rotor core；K is the depth of air discharge duct (32).
4. cover die in a kind of casting aluminum rotor as claimed in claim 1 or 3, which is characterized in that the depth of the air discharge duct (32)
Degree is 0.08~0.1mm.
5. cover die in a kind of casting aluminum rotor as claimed in claim 4, which is characterized in that motor below for seat No. H225
Rotor, the depth of the air discharge duct (32) are 0.03~0.05mm；For the rotor of H225 or more, the air discharge duct
(32) depth is 0.08~0.1mm.
6. cover die in a kind of casting aluminum rotor as described in claim 1, which is characterized in that the material of the middle set mould body (31)
Matter is heated die steel H13.
7. the processing method of cover die in a kind of casting aluminum rotor as claimed in any one of claims 1 to 6, which is characterized in that including
Following steps: being heated to 600~700 degrees Celsius for the middle set mould body (31), be heat-treated to surface hardness 38-42HRC,
Then the surface of middle set mould body (31) is subjected to Nitrizing Treatment, so that the inner wall hardness of middle set mould body (31) reaches 68-
72HRC。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618552.1A CN110311516A (en) | 2019-07-10 | 2019-07-10 | Cover die and its processing method in casting aluminum rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618552.1A CN110311516A (en) | 2019-07-10 | 2019-07-10 | Cover die and its processing method in casting aluminum rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311516A true CN110311516A (en) | 2019-10-08 |
Family
ID=68079966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910618552.1A Pending CN110311516A (en) | 2019-07-10 | 2019-07-10 | Cover die and its processing method in casting aluminum rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110311516A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934360A (en) * | 2009-07-02 | 2011-01-05 | 无锡市中达电机有限公司 | Motor rotor pressure cast aluminium die |
| CN102035315A (en) * | 2011-01-06 | 2011-04-27 | 无锡市中达电机有限公司 | Cast aluminum rotor middle segment structure of motor |
| CN102723821A (en) * | 2012-05-25 | 2012-10-10 | 江苏通达动力科技股份有限公司 | Process for reducing broken bars of motor die-casting rotor |
| CN203356239U (en) * | 2013-07-31 | 2013-12-25 | 佛山市顺德区兴益康金属科技有限公司 | Nitriding-free extrusion die for rare earth alloy aluminum profiles |
| CN203621453U (en) * | 2013-10-26 | 2014-06-04 | 合肥新沪屏蔽泵有限公司 | Rotor cast aluminum die casting tool with exhaust function |
| CN104195553A (en) * | 2014-08-15 | 2014-12-10 | 陕西天元智能再制造有限公司 | Surface strengthening method of extrusion die |
| CN105921719A (en) * | 2016-06-28 | 2016-09-07 | 重庆迎瑞升压铸有限公司 | Motor rotor cast aluminum mold with guide mechanism |
| CN106064235A (en) * | 2016-08-15 | 2016-11-02 | 山东力久特种电机股份有限公司 | Motor cast-aluminum rotor iron core compression mod middle mold exhaust structure |
| CN210093072U (en) * | 2019-07-10 | 2020-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Rotor cast aluminum middle sleeve die |
-
2019
- 2019-07-10 CN CN201910618552.1A patent/CN110311516A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934360A (en) * | 2009-07-02 | 2011-01-05 | 无锡市中达电机有限公司 | Motor rotor pressure cast aluminium die |
| CN102035315A (en) * | 2011-01-06 | 2011-04-27 | 无锡市中达电机有限公司 | Cast aluminum rotor middle segment structure of motor |
| CN102723821A (en) * | 2012-05-25 | 2012-10-10 | 江苏通达动力科技股份有限公司 | Process for reducing broken bars of motor die-casting rotor |
| CN203356239U (en) * | 2013-07-31 | 2013-12-25 | 佛山市顺德区兴益康金属科技有限公司 | Nitriding-free extrusion die for rare earth alloy aluminum profiles |
| CN203621453U (en) * | 2013-10-26 | 2014-06-04 | 合肥新沪屏蔽泵有限公司 | Rotor cast aluminum die casting tool with exhaust function |
| CN104195553A (en) * | 2014-08-15 | 2014-12-10 | 陕西天元智能再制造有限公司 | Surface strengthening method of extrusion die |
| CN105921719A (en) * | 2016-06-28 | 2016-09-07 | 重庆迎瑞升压铸有限公司 | Motor rotor cast aluminum mold with guide mechanism |
| CN106064235A (en) * | 2016-08-15 | 2016-11-02 | 山东力久特种电机股份有限公司 | Motor cast-aluminum rotor iron core compression mod middle mold exhaust structure |
| CN210093072U (en) * | 2019-07-10 | 2020-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Rotor cast aluminum middle sleeve die |
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