CN208016039U - Anti-corrosion electric heating tube with DLC film layer - Google Patents
Anti-corrosion electric heating tube with DLC film layer Download PDFInfo
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- CN208016039U CN208016039U CN201820342126.0U CN201820342126U CN208016039U CN 208016039 U CN208016039 U CN 208016039U CN 201820342126 U CN201820342126 U CN 201820342126U CN 208016039 U CN208016039 U CN 208016039U
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- electric heating
- heating tube
- dlc film
- corrosion
- film layer
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Abstract
The utility model is related to electric heating tube technologies, it is desirable to provide a kind of anti-corrosion electric heating tube with DLC film layer.This is anti-corrosion, and electric heating tube includes the electric heating tube ontology of metal material, is internally provided with resistance wire, magnesia powder is filled between resistance wire and electric heating tube ontology；It is coated with the DLC film layer that a layer thickness is 1~10 μm in the outer surface of electric heating tube ontology.The utility model utilizes Magnetic filter direct-current vacuum cathodic arc deposition technology, and DLC film is prepared on stainless steel electric heating tube.Make product that there is good electrochemical corrosion resistant performance, higher hardness, also ensures the good capacity of heat transmission.Can thus long-term anti-corrosion protection be carried out to the electric heating tube to work in water, extend service life of the electric heating tube in the environment such as salt fog, seawater, acid, alkali.
Description
Technical field
The utility model is related to a kind of electric heating tube technologies, more particularly to the anti-corrosion electrical heating with DLC film layer
Pipe.
Background technology
Electric heating tube is often used in production or life, but since there are salt fog, seawater, acid, alkali in application environment
Etc. a variety of situations, the electric heating tube of the materials such as the stainless steel in equipment is led to problems such as spot corrosion, corrosion cracking often occur.Even if
It is most common equipment of heating up water of living, also will appear because water quality used in terminal user differs, water quality is really up to the mark, chloride content is excessively high
Etc. reasons aggravation electric heating tube corrosion failure the problem of.
To improve etching problem, also there is the technology in stainless steel electric heating tube external add-in coating to apply at present, example
Such as using fine copper, ceramics or enamel as exterior cladding material.But these coating materials are using there are still certain defects, such as
Cu coating surface is easily scratched, and the binding force of ceramic coating etc. and matrix is poor and coating layer thickness is severely limited by matrix shape
Shape.Therefore, electric heating tube coating technology can not be widely used in every field always.
Utility model content
The technical problems to be solved in the utility model is to overcome deficiency in the prior art, is provided a kind of with diamond-like
The anti-corrosion electric heating tube of stone film layer.
To solve technical problem, the solution of the utility model is：
A kind of anti-corrosion electric heating tube with DLC film layer is provided, the electric heating tube ontology of metal material is included,
It is internally provided with resistance wire, magnesia powder is filled between resistance wire and electric heating tube ontology；In the outer surface of electric heating tube ontology
It is coated with the DLC film layer that a layer thickness is 1~10 μm.
As an improvement electric heating tube ontology is the electric heating tube ontology of stainless steel, aluminium alloy or Copper alloy material.
Anti-corrosion electric heating tube described in the utility model is processed by following methods and is obtained：
(1) matrix polished and cleaned
To stainless steel, loaded magnesia powder and bending and molding after the outer surface of electric heating tube ontology beat
Mill, polishing, with being dried after acetone and alcohol washes 20min；
(2) inert ion sputter clean
Electric heating tube ontology after cleaning is placed in vacuum equipment, protective atmosphere is first passed through and carries out ventilation cleaning, then is right
Electric heating tube ontology carries out 10 minutes argon ion glow discharge sputterings, goes the dirty and oxide layer of exterior surface；
(3) electric heating tube loads
After electric heating tube body interior is packed into resistance wire and magnesia powder, bending is carried out according to preset shape；
(4) DLC film deposits
Graphite using electric heating tube ontology as matrix, purity more than 99.99% is (such as pure in protective gas as cathode
Argon gas of the degree more than 99.995%) it flow 40sccm, under conditions of 200 volts of substrate bias, is produced by cathodic vacuum arc discharge
Raw carbon plasma；Pure carbon ion beam is obtained using Magnetic filter method, to the outer surface plated film 2 hours of electric heating tube ontology
Afterwards, the anti-corrosion electric heating tube product with DLC film layer is obtained.
Compared with prior art, the utility model has the beneficial effects that：
1, the utility model utilizes Magnetic filter direct-current vacuum cathodic arc deposition technology, and class is prepared on stainless steel electric heating tube
Diamond thin.This method has the characteristics that the DLC film that depositing temperature is low, simple for process, of low cost, prepares
Have many advantages, such as good film-substrate cohesion, high-compactness and high rigidity.
2, after the utility model adds DLC film in the outside of stainless steel electric heating tube so that product has good
Electrochemical corrosion resistant performance, higher hardness, also ensure the good capacity of heat transmission.It thus can be to the electricity that works in water
Heating tube carries out long-term anti-corrosion protection, extends service life of the electric heating tube in the environment such as salt fog, seawater, acid, alkali.
Description of the drawings
Fig. 1 is a kind of case study on implementation diagrammatic cross-section of the utility model.
Reference numeral in figure：1 electric heating tube ontology；2 DLC film layers.
Specific implementation mode
The utility model is described in detail with reference to Fig. 1.
The anti-corrosion electric heating tube with DLC film layer in Fig. 1, includes the electric heating tube ontology of stainless steel
1, it is internally provided with resistance wire, magnesia powder is filled between resistance wire and electric heating tube ontology 1；In the appearance of electric heating tube ontology
Face is coated with the DLC film layer 2 that a layer thickness is 1~10 μm.
DLC film layer 2 is prepared using Magnetic filter direct-current vacuum cathodic arc deposition technology, and as matrix
Bond strength is high between stainless steel, and can by control electroplating time length and be applied to matrix back bias voltage size come
Adjust thickness of coating and surface quality.The hardness of DLC film is high, consistency is high, thermal stability is good and heat transfer efficiency is high,
The corrosion resistance and surface quality of electric heating tube can be improved, to effectively promote the service life of electrothermal tube.
The processing method of anti-corrosion electric heating tube described in the utility model includes the following steps：
(1) matrix polished and cleaned
To stainless steel, loaded magnesia powder and bending and molding after electric heating tube ontology 1 outer surface carry out
Polishing, polishing, with being dried after acetone and alcohol washes 20min；
(2) argon ion sputtering cleans
Electric heating tube ontology 1 after cleaning is placed in vaccum-pumping equipment, the argon gas that purity is more than 99.995% is first passed through
Ventilation cleaning is carried out, then carries out 10 minutes argon ion glow discharge sputterings to electric heating tube ontology, removes the dirty and oxygen of exterior surface
Change layer；
(3) electric heating tube loads
After being packed into resistance wire and magnesia powder inside electric heating tube ontology 1, bending is carried out according to preset shape；
(4) DLC film deposits
Using electric heating tube ontology 1 be matrix, purity more than 99.99% graphite as cathode, in shield gas flow rate
Under conditions of 40sccm, 200 volts of substrate bias, carbon plasma is generated by direct-current vacuum cathode arc discharge；Utilize magnetic mistake
Filtering method obtains pure carbon ion beam, after the outer surface plated film 2 hours of electric heating tube ontology 1, obtains thin with diamond-like
The anti-corrosion electric heating tube product of film layer 2.
The utility model is not limited to the above embodiment, and person skilled in the relevant technique is not departing from this practicality
The variation or deformation that can be made in novel protection domain, such as：Heating tube bulk material is changed to aluminium, copper alloy, or to parameter
Adjustment etc. slightly is made, all equivalent technical solutions should also belong to the protection category of the utility model.
Claims (2)
1. a kind of anti-corrosion electric heating tube with DLC film layer, includes the electric heating tube ontology of metal material, inside
Equipped with resistance wire, magnesia powder is filled between resistance wire and electric heating tube ontology；It is characterized in that, in the outer of electric heating tube ontology
Surface is coated with the DLC film layer that a layer thickness is 1~10 μm.
2. anti-corrosion electric heating tube according to claim 1, which is characterized in that the electric heating tube ontology is stainless steel, aluminium
The electric heating tube ontology of alloy or Copper alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820342126.0U CN208016039U (en) | 2018-03-13 | 2018-03-13 | Anti-corrosion electric heating tube with DLC film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820342126.0U CN208016039U (en) | 2018-03-13 | 2018-03-13 | Anti-corrosion electric heating tube with DLC film layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208016039U true CN208016039U (en) | 2018-10-26 |
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ID=63888659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820342126.0U Active CN208016039U (en) | 2018-03-13 | 2018-03-13 | Anti-corrosion electric heating tube with DLC film layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN208016039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260237A (en) * | 2018-03-13 | 2018-07-06 | 杭州佐帕斯工业有限公司 | Anti-corrosion electric heating tube and its processing method with DLC film layer |
-
2018
- 2018-03-13 CN CN201820342126.0U patent/CN208016039U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260237A (en) * | 2018-03-13 | 2018-07-06 | 杭州佐帕斯工业有限公司 | Anti-corrosion electric heating tube and its processing method with DLC film layer |
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