CN107312994A - A kind of thermal spraying electrothermal device and preparation method thereof - Google Patents
A kind of thermal spraying electrothermal device and preparation method thereof Download PDFInfo
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- CN107312994A CN107312994A CN201710676554.7A CN201710676554A CN107312994A CN 107312994 A CN107312994 A CN 107312994A CN 201710676554 A CN201710676554 A CN 201710676554A CN 107312994 A CN107312994 A CN 107312994A
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- Prior art keywords
- spraying
- layer
- electrothermal
- thermal spraying
- insulating barrier
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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
Abstract
The invention discloses a kind of thermal spraying electrothermal device, including base material, insulating barrier, electrothermal layer and encapsulated layer, the encapsulated layer is fixed on the surface of base material by electric arc spraying, plasma spraying or flame-spraying mode, electrothermal layer is fixed on the surface of insulating barrier by electric arc spraying, plasma spraying or flame-spraying mode, encapsulated layer is fixed on the surface of electrothermal layer by electric arc spraying, plasma spraying or flame-spraying mode, the beneficial effects of the invention are as follows：Existing thick film electric resistance layer preparation technology is substituted using plasma spray technology, the weight of electrothermal device is alleviated, reduces material cost；And it is effectively improved production efficiency and the qualification rate of product.
Description
Technical field
The present invention is specifically a kind of thermal spraying electrothermal device and preparation method thereof.
Background technology
Thermal spraying refers to a series of processes, during these, trickle and scattered metal or nonmetallic coating material,
With one kind fusing or semi-molten state, a kind of matrix surface by preparing is deposited to, certain spray deposited layer is formed.It is profit
Powdered or thread metal or nonmetallic materials are heated with certain thermal source (such as electric arc, plasma spraying or combustion flame)
To melting or semi-molten state, then itself or compressed air is stayed to be ejected into pretreated matrix table with certain speed by flame
Face, deposits and is formed a kind of technology of the face coat with various functions.Utilize the energy by the offer such as fuel gas or electric arc.
Plasma spray technology has been widely used in space technology, and gradually starts to be applied on automobile, this skill
The advantage of art is good heat-insulation effect, can bear high temperature and high pressure, technical maturity, steady quality；, can to reach the target of low heat emission
The zirconium oxide of ceramic thermal spray, such as spray of the zirconium oxide of piston top spray, cylinder sleeve is carried out to engine chamber part, by this
The engine of processing can reduce radiation loss, mitigate engine sole mass, reduce size of engine, reduce fuel consumption
Amount.With the progress of technology, plasma spray technology will widely be applied to all trades and professions.
Electrothermal device electric heating element product category is various, including electrothermal alloy, thermo electric material, microwave heating equipment, electromagnetism
Sense thermal, heating wire, electric hot plate, ribbon heater, heating cable, electric hot tray, electroheat pair, Electrothermal ring, electrical bar, electric tracing
The product such as band, electrical heating core, mica fever tablet, ceramic heating plate, tungsten product, Elema, molybdenum powder, tungsten rod, heating wire, and guipure
Kind.It is all three-dimensional structure, and volume is big, and high material consumption, cost is high, and the efficiency of heating surface is low.
Film heating electrothermal device generally uses thick-film technique, and existing thick-film electric heater part dielectric layer is main in stainless base steel
Material, ceramic base material, completed by silk-screen repeatedly/sintered glass glaze on glass baseplate, low production efficiency, cost are high, and produce
Product defect is difficult to control to, material selection range is limited, performance is difficult to be lifted.
The content of the invention
It is an object of the invention to provide a kind of thermal spraying electrothermal device and preparation method thereof, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：
A kind of thermal spraying electrothermal device, including base material, insulating barrier, electrothermal layer and encapsulated layer, the encapsulated layer pass through electric arc
Spraying, plasma spraying or flame-spraying mode are fixed on the surface of base material, electrothermal layer by electric arc spraying, plasma spraying or
Flame-spraying mode is fixed on the surface of insulating barrier, and encapsulated layer is solid by electric arc spraying, plasma spraying or flame-spraying mode
It is scheduled on the surface of electrothermal layer.
It is used as further scheme of the invention：The base material is to use to include metal and its alloy or oxide or carbide
Or at least two composition in nitride, ceramics, glass and plastics is made.
It is used as further scheme of the invention：The insulating barrier and encapsulated layer are to use to include ceramics, oxide, glass
It is made with least two composition in plastics.
It is used as further scheme of the invention：The electrothermal layer is to use to include metal and its alloy, ceramics and carbon materials
At least two composition in material is made.
A kind of preparation method of thermal spraying electrothermal device, comprises the following steps：
(1) base material is cleaned up, dried stand-by；
(2) above-mentioned base material is placed in thermal spraying apparatus station, starts thermal spraying apparatus and respectively spray insulation layer material, shape
Into the insulating barrier that thickness is 1-5000 μm；
(3) surface of insulating layer obtained in step (2) continues to spray thermo electric material, forms the electric heating that thickness is 1-5000 μm
Layer；
(4) the electric heating layer surface obtained in step (3) continues to spray encapsulating material, forms the encapsulation that thickness is 1-5000 μm
Layer.
The technological parameter of the thermal spraying apparatus is, power output 200w~400kw, thermal spraying powder feeding pressure 0.1~
5MPa, powder pushing precision ± 0.1~± 1%, 0~0.5kg/min of powder sending quantity.
The particle size values for applying insulating layer material, thermo electric material and encapsulated layer material powder are 0.5-50 μm.
Compared with prior art, the beneficial effects of the invention are as follows：Existing thick film electric resistance is substituted using plasma spray technology
Layer preparation technology, alleviates the weight of electrothermal device, reduces material cost；And it is effectively improved production efficiency and product
Qualification rate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of thermal spraying electrothermal device.
In figure：1- base materials, 2- insulating barriers, 3- electrothermal layers, 4- encapsulated layers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of thermal spraying electrothermal device, including base material 1, insulating barrier 2, electrothermal layer 3
With encapsulated layer 4, the encapsulated layer 2 is fixed on the surface of base material 1 by electric arc spraying, plasma spraying or flame-spraying mode,
Electrothermal layer 3 is fixed on the surface of insulating barrier 2 by electric arc spraying, plasma spraying or flame-spraying mode, and encapsulated layer 4 passes through electricity
Arc spraying, plasma spraying or flame-spraying mode are fixed on the surface of electrothermal layer 3.
The base material 1 is to use to include metal and its alloy or oxide or carbide or nitride, ceramics, glass and modeling
At least two composition in material is made.
The insulating barrier 2 and encapsulated layer 4 are to use to include at least two group in ceramics, oxide, glass and plastics
Compound is made.
The electrothermal layer 3 is to use to include at least two composition system in metal and its alloy, ceramics and carbon material
Into.
A kind of preparation method of thermal spraying electrothermal device, comprises the following steps：
(5) base material is cleaned up, dried stand-by；
(6) above-mentioned base material is placed in thermal spraying apparatus station, starts thermal spraying apparatus and respectively spray insulation layer material, shape
Into the insulating barrier that thickness is 1-5000 μm；
(7) surface of insulating layer obtained in step (2) continues to spray thermo electric material, forms the electric heating that thickness is 1-5000 μm
Layer；
(8) the electric heating layer surface obtained in step (3) continues to spray encapsulating material, forms the encapsulation that thickness is 1-5000 μm
Layer.
The technological parameter of the thermal spraying apparatus is, power output 200w~400kw, thermal spraying powder feeding pressure 0.1~
5MPa, powder pushing precision ± 0.1~± 1%, 0~0.5kg/min of powder sending quantity.
The particle size values for applying insulating layer material, thermo electric material and encapsulated layer material powder are 0.5-50 μm.
It is described in detail below with a case come the preparation method to the present invention, is specially：
(1) by 100*100*10mm copper coin material cleaning, dry stand-by；
(2) it is 50kw, the heat that powder feeding pressure is 1MPa, powder feeding flow is 100g/min, powder pushing precision 0.2% by power
Spraying equipment, granularity is sprayed on copper coin for 15 μm of alumina powder, forms the insulating barrier that thickness is 100 μm；
(3) thereafter by Ni50Cr50 powder sprays on the insulating layer, formed 1mm*5000mm Z-shaped circuit, be used as electricity
Thermosphere, thickness is 30 μm；
(4) 20 μm of alumina powders are finally sprayed, encapsulated layer is formed.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of thermal spraying electrothermal device, including base material, insulating barrier, electrothermal layer and encapsulated layer, it is characterised in that the encapsulated layer
Be fixed on the surface of base material by electric arc spraying, plasma spraying or flame-spraying mode, electrothermal layer by electric arc spraying, etc. from
Son spraying or flame-spraying mode are fixed on the surface of insulating barrier, and encapsulated layer is sprayed by electric arc spraying, plasma spraying or flame
Painting mode is fixed on the surface of electrothermal layer.
2. a kind of thermal spraying electrothermal device according to claim 1, it is characterised in that the base material is to use to include metal
And its at least two composition in alloy or oxide or carbide or nitride, ceramics, glass and plastics is made.
3. a kind of thermal spraying electrothermal device according to claim 1, it is characterised in that the insulating barrier and encapsulated layer are to adopt
It is made of including at least two composition in ceramics, oxide, glass and plastics.
4. a kind of thermal spraying electrothermal device according to claim 1, it is characterised in that the electrothermal layer is to use to include gold
At least two composition in category and its alloy, ceramics and carbon material is made.
5. according to a kind of preparation method of any described thermal spraying electrothermal devices of claim 1-4, it is characterised in that including with
Lower step：
(1) base material is cleaned up, dried stand-by；
(2) above-mentioned base material is placed in thermal spraying apparatus station, starts thermal spraying apparatus and respectively spray insulation layer material, form thick
Spend the insulating barrier for 1-5000 μm；
(3) surface of insulating layer obtained in step (2) continues to spray thermo electric material, forms the electrothermal layer that thickness is 1-5000 μm；
(4) the electric heating layer surface obtained in step (3) continues to spray encapsulating material, forms the encapsulated layer that thickness is 1-5000 μm.
6. the preparation method of a kind of thermal spraying electrothermal device according to claim 5, it is characterised in that the thermal jet is coated with
Standby technological parameter is, power output 200w~400kw, thermal spraying powder feeding 0.1~5MPa of pressure, powder pushing precision ± 0.1~±
1%, 0~0.5kg/min of powder sending quantity.
7. a kind of preparation method of thermal spraying electrothermal device according to claim 5, it is characterised in that the painting insulating barrier
The particle size values of material, thermo electric material and encapsulated layer material powder are 0.5-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676554.7A CN107312994A (en) | 2017-08-09 | 2017-08-09 | A kind of thermal spraying electrothermal device and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676554.7A CN107312994A (en) | 2017-08-09 | 2017-08-09 | A kind of thermal spraying electrothermal device and preparation method thereof |
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| CN107312994A true CN107312994A (en) | 2017-11-03 |
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| CN201710676554.7A Pending CN107312994A (en) | 2017-08-09 | 2017-08-09 | A kind of thermal spraying electrothermal device and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220859A (en) * | 2017-12-11 | 2018-06-29 | 佛山先进表面技术有限公司 | A kind of electro-thermal coatings and preparation method thereof |
| CN108411296A (en) * | 2018-02-13 | 2018-08-17 | 上海楚越机械设备有限公司 | A kind of preparation method of stratie |
| CN113079600A (en) * | 2020-01-06 | 2021-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electric appliance and method for preparing composite material |
| CN113073286A (en) * | 2020-01-06 | 2021-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electric appliance and method for preparing composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555151A (en) * | 2016-11-23 | 2017-04-05 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of plasma spraying aluminium base electrothermal device and preparation method thereof |
| CN106637043A (en) * | 2016-11-23 | 2017-05-10 | 东莞珂洛赫慕电子材料科技有限公司 | Electric heating device with plasma-sprayed stainless steel tube |
| CN206256157U (en) * | 2016-11-23 | 2017-06-16 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of plasma spraying stainless steel tube electrothermal device |
-
2017
- 2017-08-09 CN CN201710676554.7A patent/CN107312994A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555151A (en) * | 2016-11-23 | 2017-04-05 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of plasma spraying aluminium base electrothermal device and preparation method thereof |
| CN106637043A (en) * | 2016-11-23 | 2017-05-10 | 东莞珂洛赫慕电子材料科技有限公司 | Electric heating device with plasma-sprayed stainless steel tube |
| CN206256157U (en) * | 2016-11-23 | 2017-06-16 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of plasma spraying stainless steel tube electrothermal device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220859A (en) * | 2017-12-11 | 2018-06-29 | 佛山先进表面技术有限公司 | A kind of electro-thermal coatings and preparation method thereof |
| CN108411296A (en) * | 2018-02-13 | 2018-08-17 | 上海楚越机械设备有限公司 | A kind of preparation method of stratie |
| CN113079600A (en) * | 2020-01-06 | 2021-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electric appliance and method for preparing composite material |
| CN113073286A (en) * | 2020-01-06 | 2021-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electric appliance and method for preparing composite material |
| CN113079600B (en) * | 2020-01-06 | 2023-01-24 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electric appliance and method for preparing composite material |
| CN113073286B (en) * | 2020-01-06 | 2024-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, electrical appliance and method for producing a composite material |
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Application publication date: 20171103 |