CN201230233Y - Corrosion resistant diving generator rotor - Google Patents
Corrosion resistant diving generator rotor Download PDFInfo
- Publication number
- CN201230233Y CN201230233Y CNU2008200292334U CN200820029233U CN201230233Y CN 201230233 Y CN201230233 Y CN 201230233Y CN U2008200292334 U CNU2008200292334 U CN U2008200292334U CN 200820029233 U CN200820029233 U CN 200820029233U CN 201230233 Y CN201230233 Y CN 201230233Y
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- CN
- China
- Prior art keywords
- rotor
- submersible motor
- corrosion
- corrosion resistant
- utility
- 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
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a corrosion resistant submersible motor rotor which comprises a motor rotor body and an Ni-P amorphous alloy corrosion resistant layer with the thickness of 30 mu m to 60 mu m, which is plated on the body surface. The submersible motor rotor adopts the structure with the amorphous alloy layer as the corrosion resistant layer, the coating is tight in structure, and is tightly bonded with a silicon steel sheet, so the porosity in the motor rotor body is zero. The utility model has good corrosion resistance and abrasion resistance.
Description
Technical field
The utility model belongs to the mechanical ﹠ electrical technology field, relates to a kind of rotor, is specifically related to a kind of corrosion resistant submersible motor rotor.
Background technology
Submersible motor generally is used for the immersible pump or the submarine mechanical of underwater work.Facts have proved that submersible motor uses in the water that contains certain salinity or corrosive ion, very easily produce corrosion phenomenon, influence the efficient and the life-span of submersible motor, and the corrosion of submersible motor mainly is rotor corrosion earlier.As the draw water submersible motor of usefulness of seashore, the life-span of its rotor is very short, must change in general 6～12 months.
Rotor is overrided to form by silicon steel sheet, and fixedly connected with motor shaft, and its electrode potential is lower than motor housing, constitute the anode of corrosion system, motor housing, motor shaft etc. constitute the negative electrode of corrosion system, the corrosion system of the big negative electrode of primary anode occurred, so the corrosion rate of rotor are very fast.In addition, by the rotor that the silicon steel sheet stratiform is overrided to form, between layer and the layer very little slit must be arranged.Motor is in the dry atmosphere, does not have moisture in the rotor, and crevice corrosion is not remarkable.But the rotor of submersible motor is in the aqueous medium, may contain Cl in the water
-, S
2-Or other corrosive ions, quickened the crevice corrosion of rotor.
Legacy after the silicon steel sheet corrosion enters in the gap between rotor and the stator, scratches the winding wire in the stator easily, and the electric leakage accident takes place.In most cases, after rotor corroded, efficiency of motor reduced, even causes motor not start.
At the rotor surface-coated antirust paint or the epoxy resin of submersible motor, prevent that it from corroding.Owing to reasons such as micropore and paint film are thicker are arranged in the coating, after use a period of time, pull-away, the paint film that comes off enter the gap between rotor and the stator, cause electric efficiency to reduce, even can not rotate.Therefore the corrosion of submersible motor rotor becomes influences the submersible motor key in useful life.
Summary of the invention
The purpose of this utility model provides a kind of corrosion resistant submersible motor rotor, is used at the submersible motor that contains salt or the water of corrosive ion is worked, and rotor does not corrode, and prolongs the useful life of submersible motor.
The technical scheme that the utility model adopted is, a kind of corrosion resistant submersible motor rotor comprises the rotor body, and the coating surface of rotor body has the amorphous alloy anticorrosive coat of Ni-P.
Feature of the present utility model also is,
The thickness of anticorrosive coat is 30 μ m～60 μ m.
The utility model has the advantages that:
1. anticorrosive coat is that amorphous alloy-layer, dense structure, porosity are zero, combine closely with silicon steel sheet;
2. the corrosion resistance of anticorrosive coat is good, is containing Cl
-, S
2-Can not corrode Deng in the medium of corrosive ion, and have resistance to wear preferably;
3. the preparation technology of anticorrosive coat is simple, need not use power supply, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of the utility model rotor;
Fig. 2 is that the anticorrosive coat of the utility model rotor is at Na
2Corrosion rate curve in the S medium.
Among the figure, 1. anticorrosive coat, 2. rotor body.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The utility model anti-corrosion electric machine rotor is made up of 1 two kinds of structures of the amorphous alloy anticorrosive coat of Ni-P of rotor body 2 and rotor body 2 surface-coated, as shown in Figure 1.
The method of plating
Step 1: get the NiSO that concentration is 25g/L～30g/L respectively
46HO
2, concentration is the NaHPO of 30g/L～35g/L
2HO
2, concentration is the NaAC of 5g/L～7g/L, lactic acid that concentration is 20ml/L～25ml/L or the concentration ethanedioic acid that is 10mg/L～20mg/L, citric acid or the malic acid that concentration is 10g/L～15g/L, mix, and add NH
4OH, the pH value of control solution is 4.5～5.2, obtains mixed solution;
Step 2: will adopt the submersible motor rotor of mature technology manufacturing to put into temperature is that 30 ℃～60 ℃, concentration are 4%～6% NaOH solution, soaked 3 minutes～5 minutes, remove the grease on this rotor surface, wash rotor with clear water then, remove the NaOH of its surface adhesion;
Step 3: will go up the submersible motor rotor that the step removes grease, placing concentration is 10%～15% HCl solution, carries out surface activation process, and control soak time 1 minute～3 minutes washes rotor with clear water then, removes the HCl of its remained on surface;
Step 4: with the submersible motor rotor after step 3 processing, put into the mixed solution that step 1 makes, coating surface anticorrosive coat at this rotor body, in the plating process, the temperature of controlling this mixed solution is that 85 ℃～92 ℃, coating speed are 35um/h～45um/h, applied 30 minutes～45 minutes;
The anticorrosive coat 1 of the corrosion-resistant submersible motor rotor surface of the utility model is amorphous alloy-layer, and this alloy-layer is the Ni-P alloy-layer, the dense structure of anticorrosive coat, and porosity is zero.
The corrosion-resistant submersible motor rotor of the utility model, become submersible motor with the stator combination of submersible motor, this submersible motor is used for containing salt or the operational environment of corrosive ion, because the existence of anticorrosive coat 1, make the electrode potential of rotor body 2 be higher than the electrode potential of iron and steel, after effectively having avoided rotor body 2 and stator linking to each other, the rotor body 2 of generation causes the problem of rotor body 2 accelerated corrosions for anode, stator are negative electrode.Simultaneously, the anticorrosive coat 1 of above-mentioned rotor body 2 surface-coated is the face of a continuous whole identical with rotor body 2 surface configurations, with the stratiform gap closing between the silicon steel sheet of composition rotor body 2, effectively prevented the crevice corrosion of rotor body 2.
The thickness of above-mentioned submersible motor rotor body 2 surface anticorrosion layers 1 is 30 μ m～60 μ m, and is good with the bond strength of rotor body 2, and have resistance to wear preferably.
Fig. 2 is that the anticorrosive coat on the utility model anti-corrosion electric machine rotor surface is at Na
2Corrosion rate curve in the S medium.Show among the figure that increase with corrosive concentration, the corrosion rate of this anticorrosive coat is on a declining curve, illustrates that this anticorrosive coat has good antiseptic effect.
To the submersible motor of the utility model anti-corrosion electric machine rotor be housed, submersible motor with rotor surface coating epoxy resin, put into 3% the NaCl aqueous solution simultaneously, after 3 months, open two submersible motors, check and find, the face coat that applies the rotor of epoxy resin comes off, and the etch pit of about 2mm size appears in the rotor surface, the efficient of submersible motor has reduced by 20% simultaneously, rotor of the present utility model, and its surface-brightening is as newly, evidence of corrosion do not occur, electric efficiency does not reduce.Anticorrosive coat to the utility model rotor carries out energy spectrum analysis, testing result shows, the phosphorus content of this anticorrosive coat is 10.36mass%, and the X-ray diffraction analysis result that this anticorrosive coat is carried out shows that the diffraction maximum of this anticorrosive coat is typical amorphous state diffraction maximum simultaneously.
The corrosion-resistant diving generator rotor of the utility model is compared rotor with common diving generator rotor Body 2 is corrosion not, and the long-term service efficiency of motor does not reduce, and the life-span can prolong 3～5 times, effectively Rotor corrodes easily when having solved submersible motor and using in the medium that contains corrosive ion or seawater Problem.
Claims (2)
1. a corrosion resistant submersible motor rotor comprises rotor body (2), it is characterized in that, the coating surface of described rotor body (2) has the amorphous alloy anticorrosive coat of Ni-P (1).
2. corrosion resistant submersible motor rotor according to claim 1 is characterized in that, the thickness of described anticorrosive coat (1) is 30 μ m～60 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292334U CN201230233Y (en) | 2008-05-29 | 2008-05-29 | Corrosion resistant diving generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292334U CN201230233Y (en) | 2008-05-29 | 2008-05-29 | Corrosion resistant diving generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230233Y true CN201230233Y (en) | 2009-04-29 |
Family
ID=40635176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200292334U Expired - Fee Related CN201230233Y (en) | 2008-05-29 | 2008-05-29 | Corrosion resistant diving generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230233Y (en) |
-
2008
- 2008-05-29 CN CNU2008200292334U patent/CN201230233Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20120529 |