CN108018521A - A kind of motor capacitor metal spraying technique - Google Patents
A kind of motor capacitor metal spraying technique Download PDFInfo
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- CN108018521A CN108018521A CN201711399469.7A CN201711399469A CN108018521A CN 108018521 A CN108018521 A CN 108018521A CN 201711399469 A CN201711399469 A CN 201711399469A CN 108018521 A CN108018521 A CN 108018521A
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- Prior art keywords
- alloy layer
- rare earth
- metal spraying
- zinc
- core
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Classifications
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention relates to a kind of motor capacitor metal spraying technique, it will be bound after the core thermocompression forming of winding with adhesive tape, it is re-fed into rotating disc type electric arc metal spraying machine, distinguishes first spraying zinc lithium Bi rare earth alloy layer in the both ends of the surface of core, then again toward spraying alumin(i)um zinc alloy layer on zinc lithium Bi rare earth alloy layer.Pass through the optimization design to existing metal spraying technique, using first spraying zinc lithium Bi rare earth alloy layer, then again toward the mode of spraying alumin(i)um zinc alloy layer on zinc lithium Bi rare earth alloy layer so that the combination power between gilding layer and core end face significantly improves, and the qualification rate of finished product can reach 99.1%.
Description
Technical field
The present invention relates to capacitor technology field, more particularly to a kind of motor capacitor metal spraying technique.
Background technology
Alternating current motor working capacitor is mainly used for the startup and operating of various alternating current motors, such as cleaning machine, shredded paper pump, water
Pump, air compressor machine etc..The product possesses excellent stable capacitive property, self-healing performance, low-loss, high life, high insulation resistance, resistance
Fire ambroin shell, the features such as built-in fire retarding epoxide resin is filling safe and reliable.
The relatively low high purity zinc silk of the most use cost of the metal spraying of motor capacitor at present, the fusing point of high purity zinc silk is at 420 DEG C
Left and right, generally makees bottom material use.But since fusing point is high, it is more demanding to the source of welding current of subsequent handling, and use at present
High purity zinc silk is oxidizable into zinc oxide in metal spraying, and zinc oxide structures are not loose fine and close, if misoperation, easily cause metal spraying
Layer core end face between combine it is bad, product qualified rate is usually no more than 92%.Wherein, between gilding layer and core end face
It can calculate by the following method with reference to power：The grid of 200 2.0 ± 0.1mm of the length of side is cut with the center in metal spraying face, uses adhesive tape
It is pasted onto metal spraying face and covers all grids, then with the pressure extrusion adhesive tape 5min of 5bar, then quick pull-up adhesive tape causes
Adhesive tape departs from core end face, counts the metal layer quantity to come off in grid.And gilding layer made of high purity zinc silk is used at present,
Found after above-mentioned experiment, the metal layer quantity to come off in grid is not less than 13, this explanation gilding layer and core end face
Between combination degree it is limited；Baoan district of Shenzhen city pine hilllock letter profit can be selected up to the 8915 of the supply of packaging material row in above-mentioned adhesive tape
Cord belt.
The content of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of motor capacitor metal spraying technique, particular technique side
Case is as follows：
A kind of motor capacitor metal spraying technique, will be bound after the core thermocompression forming of winding with adhesive tape, be re-fed into rotating disc type electricity
In arc metal spraying machine, first spraying zinc lithium Bi rare earth alloy layer is distinguished in the both ends of the surface of core, then again toward zinc lithium Bi rare earth alloy layer
Upper spraying alumin(i)um zinc alloy layer.
As the improvement of above-mentioned technical proposal, the zinc lithium Bi rare earth alloy layer predominant quantity percentage is Li：
13.1 ~ 13.8%, Bi：8.9 ~ 9.5%, rare earth：0.2 ~ 0.3%, remaining is Zn.
As the improvement of above-mentioned technical proposal, the rare earth forms for Ce and Sm, the weight ratio of Ce and Sm in the rare earth
For（12~12.2）:1.
As the improvement of above-mentioned technical proposal, the alumin(i)um zinc alloy layer predominant quantity percentage is Al：63 ~ 68%,
Remaining is Zn.
As the improvement of above-mentioned technical proposal, arc pistol mouth in the rotating disc type electric arc metal spraying machine to core spray-coating surface
Vertical range be 160 ~ 200mm.
As the improvement of above-mentioned technical proposal, the thickness of the alumin(i)um zinc alloy layer is 0.5 ~ 0.6mm, the zinc lithium bismuth rare earth
The minimum thickness of alloy-layer is not less than 0.06mm.
As the improvement of above-mentioned technical proposal, in the rotating disc type electric arc metal spraying machine air pressure of compressed air for 0.5 ~
0.55MPa。
Beneficial effects of the present invention：By the optimization design to existing metal spraying technique, closed using first spraying zinc lithium bismuth rare earth
Layer gold, then again toward the mode of spraying alumin(i)um zinc alloy layer on zinc lithium Bi rare earth alloy layer so that between gilding layer and core end face
Combination power significantly improve, the qualification rate of finished product can reach 99.1%.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
It will be bound, be re-fed into rotating disc type electric arc metal spraying machine, at the both ends of core with adhesive tape after the core thermocompression forming of winding
The first spraying zinc lithium Bi rare earth alloy layer of face difference, the zinc lithium Bi rare earth alloy layer predominant quantity percentage is Li：
13.1 ~ 13.5%, Bi：8.9 ~ 9.1%, rare earth：0.2 ~ 0.25%, remaining is Zn；The rare earth forms for Ce and Sm, the rare earth
The weight ratio of middle Ce and Sm is（12~12.1）:1.Then again toward spraying alumin(i)um zinc alloy layer, the aluminium on zinc lithium Bi rare earth alloy layer
Zinc alloy layer predominant quantity percentage is Al：63 ~ 65%, remaining is Zn.Wherein, in the rotating disc type electric arc metal spraying machine
The vertical range of arc pistol mouth to core spray-coating surface be 160 ~ 180mm.The thickness of the alumin(i)um zinc alloy layer for 0.5 ~
0.55mm, the minimum thickness of the zinc lithium Bi rare earth alloy layer are not less than 0.06mm.Compressed in the rotating disc type electric arc metal spraying machine
The air pressure of air is 0.5 ~ 0.53MPa.
Yield rate after the metal spraying is 98.7%.Capacitor core made of above-mentioned metal spraying technique will be used to carry out metal spraying face
Tested with reference to power, specific method is as follows：The side of 200 2.0 ± 0.1mm of the length of side is cut with the center in capacitor core metal spraying face
Lattice, 8915 cord belts supplied with Baoan district of Shenzhen city pine hilllock letter profit up to packaging material row are pasted onto capacitor core metal spraying face
And all grids are covered, with the pressure extrusion adhesive tape 5min of 5bar, then quick pull-up adhesive tape causes adhesive tape to be sprayed with capacitor core
Golden emaciated face is from the metal layer quantity to come off in the grid is 1 ~ 3.
Embodiment 2
It will be bound, be re-fed into rotating disc type electric arc metal spraying machine, at the both ends of core with adhesive tape after the core thermocompression forming of winding
The first spraying zinc lithium Bi rare earth alloy layer of face difference, the zinc lithium Bi rare earth alloy layer predominant quantity percentage is Li：
13.3 ~ 13.6%, Bi：9.1 ~ 9.3%, rare earth：0.22 ~ 0.26%, remaining is Zn；The rare earth forms for Ce and Sm, the rare earth
The weight ratio of middle Ce and Sm is（12.1~12.2）:1.Then it is described again toward spraying alumin(i)um zinc alloy layer on zinc lithium Bi rare earth alloy layer
Alumin(i)um zinc alloy layer predominant quantity percentage is Al：65 ~ 68%, remaining is Zn.Wherein, the rotating disc type electric arc metal spraying machine
In the vertical range of arc pistol mouth to core spray-coating surface be 180 ~ 200mm.The thickness of the alumin(i)um zinc alloy layer for 0.57 ~
0.6mm, the minimum thickness of the zinc lithium Bi rare earth alloy layer are not less than 0.06mm.Compressed in the rotating disc type electric arc metal spraying machine empty
The air pressure of gas is 0.53 ~ 0.55MPa.
Yield rate after the metal spraying is 99.1%.Capacitor core made of above-mentioned metal spraying technique will be used to carry out metal spraying face
Tested with reference to power, specific method is as follows：The side of 200 2.0 ± 0.1mm of the length of side is cut with the center in capacitor core metal spraying face
Lattice, 8915 cord belts supplied with Baoan district of Shenzhen city pine hilllock letter profit up to packaging material row are pasted onto capacitor core metal spraying face
And all grids are covered, with the pressure extrusion adhesive tape 5min of 5bar, then quick pull-up adhesive tape causes adhesive tape to be sprayed with capacitor core
Golden emaciated face is from the metal layer quantity to come off in the grid is 1 ~ 2.
Embodiment 3
It will be bound, be re-fed into rotating disc type electric arc metal spraying machine, at the both ends of core with adhesive tape after the core thermocompression forming of winding
The first spraying zinc lithium Bi rare earth alloy layer of face difference, the zinc lithium Bi rare earth alloy layer predominant quantity percentage is Li：
13.6 ~ 13.8%, Bi：9.3 ~ 9.5%, rare earth：0.26 ~ 0.3%, remaining is Zn；The rare earth forms for Ce and Sm, the rare earth
The weight ratio of middle Ce and Sm is（12.1~12.2）:1.Then it is described again toward spraying alumin(i)um zinc alloy layer on zinc lithium Bi rare earth alloy layer
Alumin(i)um zinc alloy layer predominant quantity percentage is Al：66 ~ 68%, remaining is Zn.Wherein, the rotating disc type electric arc metal spraying machine
In the vertical range of arc pistol mouth to core spray-coating surface be 190 ~ 200mm.The thickness of the alumin(i)um zinc alloy layer for 0.5 ~
0.6mm, the minimum thickness of the zinc lithium Bi rare earth alloy layer are not less than 0.06mm.Compressed in the rotating disc type electric arc metal spraying machine empty
The air pressure of gas is 0.53 ~ 0.55MPa.
Yield rate after the metal spraying is 98.8%.Capacitor core made of above-mentioned metal spraying technique will be used to carry out metal spraying face
Tested with reference to power, specific method is as follows：The side of 200 2.0 ± 0.1mm of the length of side is cut with the center in capacitor core metal spraying face
Lattice, 8915 cord belts supplied with Baoan district of Shenzhen city pine hilllock letter profit up to packaging material row are pasted onto capacitor core metal spraying face
And all grids are covered, with the pressure extrusion adhesive tape 5min of 5bar, then quick pull-up adhesive tape causes adhesive tape to be sprayed with capacitor core
Golden emaciated face is from the metal layer quantity to come off in the grid is 1 ~ 3.
In the above-described embodiments, arc pistol mouth in the rotating disc type electric arc metal spraying machine is strictly controlled to core spray-coating surface
Vertical range, the vertical range of arc pistol mouth to core spray-coating surface is too near, and then spray-coating surface is small, particle is big, the uniformity is poor, warm
Degree is high and makes layer of metallized film scald or contraction distortion；The vertical range of arc pistol mouth to core spray-coating surface is too remote then due to temperature
Spend that low, impact force is small and makes the combination force difference of sprayed coating, metallic beam spreading is penetrated seriously, and stock utilization is low.Stringent control institute
The air pressure of compressed air in rotating disc type electric arc metal spraying machine is stated, the compressed air pressure is small, and atomization particle is thick, temperature is high, combines
Force difference；Conversely, pressure is big, atomization particle is thin, and it is fast to fly to the speed of core spray-coating surface, good with reference to power, and spray gun cooling effect might as well.
For the zinc lithium Bi rare earth alloy layer due to that can fill and be embedded into the layer gap of core, this causes the thickness of zinc lithium Bi rare earth alloy layer
Degree is irregular.
In zinc lithium Bi rare earth alloy layer, the fusing point of Li is low, and quality is soft, and plasticity is good；The fusing point of Bi is low, but Bi is crisp
And electric conductivity is poor.Although can reduce the fusing point of zinc lithium Bi rare earth alloy by adding Li and Bi, it is 220 ~ 240 to make its fusing point
DEG C, for using gilding layer made of high purity zinc silk, the fusing point of zinc lithium Bi rare earth alloy is low, the welding to subsequent handling
Power requirement is relatively low.If being free of Ce and Sm in zinc lithium Bi rare earth alloy layer of the present invention, then its resistivity lifting 13.7 ~
15.1%, that is to say, that its conductive capability have dropped 13.7 ~ 15.1%.And due to Bi in heretofore described zinc lithium Bi rare earth alloy
Content it is higher, for avoid because Bi content it is higher cause electric conductivity to be deteriorated, electric conductivity can be improved by Ce and Sm.This hair
If being free of Ce, Sm and Bi in the bright zinc lithium Bi rare earth alloy layer, not only its fusing point can rise 30 ~ 60 DEG C, and can cause
The subsequently combination power decline 33.2 ~ 36.1% between metal spraying face and core end face, while the qualification rate decline 18.8 of finished product ~
25.7%.Main component is Al, Zn in alumin(i)um zinc alloy layer, contains substantial amounts of Zn in alumin(i)um zinc alloy layer and zinc lithium Bi rare earth alloy,
Therefore easily combined between alumin(i)um zinc alloy layer and zinc lithium Bi rare earth alloy and combination effect is good.Therefore using first spraying zinc lithium bismuth rare earth
Alloy-layer, then again toward the mode that alumin(i)um zinc alloy layer is sprayed on zinc lithium Bi rare earth alloy layer, between gilding layer and core end face
Significantly improved with reference to power, the qualification rate of finished product significantly improves, and the qualification rate of product can reach 99.1%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
- A kind of 1. motor capacitor metal spraying technique, it is characterised in that it will be bound after the core thermocompression forming of winding with adhesive tape, then It is sent into rotating disc type electric arc metal spraying machine, first spraying zinc lithium Bi rare earth alloy layer is distinguished in the both ends of the surface of core, then again toward zinc lithium Alumin(i)um zinc alloy layer is sprayed on Bi rare earth alloy layer.
- A kind of 2. motor capacitor metal spraying technique according to claim 1, it is characterised in that the zinc lithium Bi rare earth alloy Layer predominant quantity percentage is Li：13.1 ~ 13.8%, Bi：8.9 ~ 9.5%, rare earth：0.2 ~ 0.3%, remaining is Zn.
- 3. a kind of motor capacitor metal spraying technique according to claim 2, it is characterised in that the rare earth is Ce and Sm groups Into the weight ratio of Ce and Sm is in the rare earth（12~12.2）:1.
- 4. a kind of motor capacitor metal spraying technique according to claim 1, it is characterised in that the alumin(i)um zinc alloy layer is main The percentage by weight of component is Al：63 ~ 68%, remaining is Zn.
- A kind of 5. motor capacitor metal spraying technique according to claim 1, it is characterised in that the rotating disc type electric arc metal spraying The vertical range of arc pistol mouth to core spray-coating surface in machine is 160 ~ 200mm.
- A kind of 6. motor capacitor metal spraying technique according to claim 1, it is characterised in that the thickness of the alumin(i)um zinc alloy layer Spend and be not less than 0.06mm for 0.5 ~ 0.6mm, the minimum thickness of the zinc lithium Bi rare earth alloy layer.
- A kind of 7. motor capacitor metal spraying technique according to claim 1, it is characterised in that the rotating disc type electric arc metal spraying The air pressure of compressed air is 0.5 ~ 0.55MPa in machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399469.7A CN108018521A (en) | 2017-12-22 | 2017-12-22 | A kind of motor capacitor metal spraying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399469.7A CN108018521A (en) | 2017-12-22 | 2017-12-22 | A kind of motor capacitor metal spraying technique |
Publications (1)
| Publication Number | Publication Date |
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| CN108018521A true CN108018521A (en) | 2018-05-11 |
Family
ID=62074513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711399469.7A Pending CN108018521A (en) | 2017-12-22 | 2017-12-22 | A kind of motor capacitor metal spraying technique |
Country Status (1)
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| CN (1) | CN108018521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588622A (en) * | 2018-05-14 | 2018-09-28 | 浙江七星电容器有限公司 | New-energy capacitance metal spraying technique |
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| CN105525249A (en) * | 2016-02-04 | 2016-04-27 | 南通成晟电子实业有限公司 | Metal spraying process for metallized film capacitor |
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2017
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| CN107039181A (en) * | 2016-10-26 | 2017-08-11 | 安徽飞达电气科技有限公司 | A kind of resistance to high current, long-service-life metal thin film capacitor |
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Application publication date: 20180511 |