CN113079596A - Electric heating membrane assembly and forming method thereof - Google Patents
Electric heating membrane assembly and forming method thereof Download PDFInfo
- Publication number
- CN113079596A CN113079596A CN202110362198.8A CN202110362198A CN113079596A CN 113079596 A CN113079596 A CN 113079596A CN 202110362198 A CN202110362198 A CN 202110362198A CN 113079596 A CN113079596 A CN 113079596A
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- electrically heated
- electric heating
- film
- spraying
- edge portion
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- 238000005485 electric heating Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000012528 membrane Substances 0.000 title claims abstract description 44
- 239000007921 spray Substances 0.000 claims abstract description 83
- 239000000463 material Substances 0.000 claims abstract description 56
- 238000005507 spraying Methods 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000009718 spray deposition Methods 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 24
- 230000000873 masking effect Effects 0.000 claims description 21
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000007667 floating Methods 0.000 description 14
- 239000002131 composite material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
Landscapes
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Abstract
The invention provides a spray formed electrical heating film assembly, comprising: the electric heating device includes a base, a first electric heating film formed at a predetermined position on the base by spraying a first material, and the first material is sprayed by a thickness such that the first electric heating film has a first predetermined resistance, wherein the first electric heating film has a first edge portion whose thickness is gradually reduced. In addition, the invention also provides a spray forming method for the electric heating membrane assembly. The slope-shaped edge part improves the end area and the lap joint area of the electric heating coating and solves the problems of easy peeling and warping.
Description
Technical Field
The invention relates to an electric heating membrane assembly, in particular to an anti-icing and deicing electric heating membrane assembly formed by spraying materials. The disclosure also relates to a spray forming method of the electric heating membrane component.
Background
During flight, ice undesirably forms on the exterior surface of the aircraft, which can disrupt smooth airflow over the aircraft surface, increase drag, and can impede operation of the aircraft's operable surfaces (e.g., wing panels or flaps), which can reduce the ability of the wing to perform the intended function. In addition, ice accumulated at the engine intake may suddenly fall out into chunks and be drawn into the engine causing damage. Accordingly, aircraft, particularly commercial aircraft, are often equipped with anti-icing and de-icing systems.
The technology of the electric heating film for preventing and removing ice by using the spraying material is developed, and the prior art can realize the spraying of the electric heating film coating such as alloy materials on the surface of the matrix of the composite material.
In the prior art, in order to ensure the heating power requirement, the electric heating film is usually designed into a long circuit shape of a serpentine circuit type inside the region to be protected, and the schematic diagram is shown in fig. 1A-1B, wherein a first electric heating film 30 ' and a second electric heating film 40 ' are sprayed on the surface of the substrate 20 '. However, due to the difference in mechanical properties (e.g., thermal expansion coefficient, elongation, etc.) between the base 20 ' of the composite material and the metallic electric heating materials of the first and second electric heating films 30 ' and 40 ', material peeling and falling-off easily occurs during the spraying process, particularly at both ends of the sprayed material strip or at the overlapping of the sprayed metals of different materials, and such peeling and falling-off easily occurs as the aspect ratio of the sprayed material strip is larger (i.e., the longer and the thinner).
Therefore, there is still a need for further improvement of the structure of the existing electric heating film.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the electric heating membrane assembly formed by spraying is provided to reduce the stripping and falling phenomena of the spraying materials at two ends of a long-strip-shaped heating strip and at the lap joint of different spraying materials.
To solve the above problems, the present disclosure provides a spray formed electric heating membrane module, including: the heating device includes a base, a first electric heating film formed at a predetermined position on the base by spraying a first material, and the first electric heating film is sprayed with a thickness such that the first electric heating film has a predetermined resistance, wherein the first electric heating film has a first edge portion whose thickness is gradually reduced.
According to an aspect of the present disclosure, the electrically heated film assembly further includes a second electrically heated film formed at another predetermined position on the base body by spraying a second material and making the second electrically heated film have a predetermined resistance, wherein the second electrically heated film has a second edge portion at least partially overlapping with the first edge portion of the first electrically heated film to form an overlap portion, and wherein the overlap portion is formed to have the predetermined resistance.
According to one aspect of the disclosure, in the overlap portion, a first edge interface of the first edge portion and a second edge interface of the second edge portion are joined in face contact, wherein the first edge interface and the second edge interface are inclined with respect to the upper surface of the base.
According to one aspect of the disclosure, the second material may be the same material as the first material.
According to one aspect of the disclosure, the first material and/or the second material is a metal for spraying.
The present disclosure provides a method for spray forming of an electrically heated membrane module, the method comprising: adhering a first masking tape to the position of the substrate adjacent to the surface area to be sprayed; positioning a spray gun above the substrate; and a spray gun spraying a first material along a first spray path to form a first electrically heated film having a predetermined resistance, wherein the method further comprises: the first shielding adhesive tape is provided with a first suspended shielding part protruding from the edge of the surface area adjacent to the surface to be sprayed, a gap is reserved between the lower surface of the first suspended shielding part and the upper surface of the base body, so that the first suspended shielding part can shield a part of the first spraying path, the spray gun sprays a first edge part of a first electric heating film in the gap below the first suspended shielding part, and the thickness of the first edge part is gradually reduced along the direction towards the first shielding adhesive tape.
According to one aspect of the present disclosure, the step of the spray gun spraying the first material along the first spray path to form the first electrically heated film includes: the spray gun step-wise travels in a direction parallel to the substrate and sprays the first material, wherein the spray gun step-wise travels on a first spray path when a first electrically heated film within a spray range of the spray gun has a first predetermined resistance.
According to one aspect of the disclosure, the method further comprises: removing the first masking tape and adhering a second masking tape on an upper surface of a portion of the first electric heating film adjacent to the first edge portion and exposing the first edge portion of the first electric heating film; repositioning the spray gun above the substrate; and the spray gun sprays a second material along a second spraying path to form a second electric heating film with a second preset resistance, and the spray gun further comprises a second suspended shielding part which is arranged at the edge of the second shielding adhesive tape adjacent to the first edge part of the first electric heating film and protrudes, a gap is left between the lower surface of the second suspended shielding part and the upper surface of the base body, so that the second suspended shielding part can shield a part of the second spraying path, the spray gun sprays and forms a second edge part of the second electric heating film in the gap below the second suspended shielding part, and the second edge part is at least partially overlapped with the first edge part to form an electrically-conductive overlapped part.
According to an aspect of the present disclosure, before the step of the spray gun spraying the second material along the second spraying path to form the second electrically heated film, the method further includes: a third masking tape is arranged on the surface of the base body adjacent to the surface region to be sprayed of the second electrical heating film
According to one aspect of the disclosure, the first material and/or the second material is a metal for spraying.
Compared with the existing electric heating membrane assembly, the electric heating membrane assembly can be realized only by additionally arranging lower-cost suspended shielding, and has good universality. The slope-shaped edge part improves the end area and the lap joint area of the electric heating coating and solves the problems of easy peeling and warping.
According to the spray forming method of the electric heating membrane assembly, programming of a loop path is not needed, a spray gun walking procedure and the complexity of the path are simplified, and the size of the overlapped part can be adjusted through the suspended shielding part so as to meet the actual spray requirement.
Drawings
FIG. 1A is a schematic side view of a prior art electrically heated membrane assembly;
FIG. 1B is a schematic top view of a prior art electrically heated membrane assembly;
FIG. 2A is a schematic side view of an electrically heated membrane assembly according to a preferred embodiment of the present disclosure;
FIG. 2B is a schematic top view of an electrically heated membrane assembly according to a preferred embodiment of the present disclosure;
FIG. 3A is a side schematic view of a method of forming a first electrically heated membrane of an electrically heated membrane assembly according to the present disclosure;
FIG. 3B is a schematic side view of a method of forming an electrically heated membrane assembly according to the present disclosure;
FIG. 4 is a flow chart of a method of forming an electrically heated membrane of an electrically heated membrane assembly according to the present disclosure; and
fig. 5A-5B are flow diagrams of methods of forming an electrically heated membrane of an electrically heated membrane assembly according to the present disclosure.
List of reference numerals:
10 spray gun
11 first masking tape
11a first floating shield
12 second masking tape
12a second floating shield
13 third masking tape
20 base body
30 first electric heating film
31 first edge portion
32 first edge interface surface
40 second electric heating film
41 second edge portion
42 second edge interface surface
D1 first spray Direction
D2 second spray Direction
Detailed Description
The present disclosure is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present disclosure, but it is apparent that the present disclosure can be implemented in many other ways than those herein described, and it will be readily appreciated by those skilled in the art that the present disclosure can be implemented in many different forms without departing from the spirit and scope of the present disclosure.
An anti-icing and de-icing system for an aircraft includes an electrically heated membrane assembly. Fig. 2A is a schematic view of an electrically heated membrane assembly according to a preferred embodiment of the present disclosure, including a substrate 20 of composite material, a first electrically heated membrane 30 sprayed on the substrate 20, and optionally a second electrically heated membrane 40.
In one embodiment, the electrically heated film assembly includes a first electrically heated film 30 sprayed on the substrate 20. A spray gun (not shown) sprays a first material at a predetermined region on the substrate 20 to form the first electrically heated film 30, and sprays the first material at a thickness such that the first electrically heated film 30 has a first predetermined resistance. The first electric heating film 30 further comprises a first edge portion 31, which first edge portion 31 is generally ramp-shaped as seen in cross-section, i.e. the thickness of the first edge portion 31 decreases gradually from the main body of the first electric heating film 30, preferably to zero at the outermost edge. The tapered coating edge portions allow the coating edge portions to be firmly bonded, and are less likely to cause edge portion lifting and peeling-off. The first material sprayed to form the first electric heating film 30 is a metal material suitable for electric heating.
In a preferred embodiment of the present invention, as shown in fig. 2A, the electric heating film assembly further includes a second electric heating film 40 sprayed on the base body 20. The second electric heating film 40 is sprayed with a second material by a spray gun (not shown) to cover another predetermined area on the substrate 20, and is also sprayed such that the second electric heating film 40 has a second predetermined resistance, and the area where the second electric heating film 40 is located is adjacent to the area where the first electric heating film 30 is located. The second electric heating film 40 includes a second edge portion 41, the second edge portion 41 is at least partially overlapped on the first edge portion 31 to form an overlapped portion, and the overlapped portion formed by both is electrically conducted, specifically, an electric path is formed and no short circuit or open circuit occurs. The size of the lap joint part is easy to adjust through the size of the suspension shielding part so as to meet the requirement of practical application.
In the overlap portion, the first edge interface 32 of the first edge portion 31 and the second edge interface 42 of the second edge portion 41 are joined in surface contact. As shown in fig. 2A, the two interfaces in surface contact are inclined with respect to the upper surface of the substrate 20, and the angle of inclination may be between 30 and 60 degrees. Specifically, the first edge interface 32 and the second edge interface 42 are joined in surface contact as determined by testing whether the circuit is open or not, and if not, in surface contact. As shown in fig. 2B, the overlapping portion of the first edge portion 31 and the second edge portion 41 forms a boundary portion of the first electric heating film 30 and the second electric heating film 40. The first edge portion 31 and the second edge portion 41 are overlapped by the inclined interface, which improves the firmness of the coating end, so that the interface of the two electric heating films 30 and 40 is not easy to be warped and fall off. The second material sprayed to form the second electric heating film 40 is a metal material suitable for electric heating, and may be the same material as the first material or a different material.
In an alternative embodiment, the first edge interface 32 of the first edge portion 31 and the second edge interface 42 of the second edge portion 41 may also be formed with a slope having a curvature, the curvature of the two interfaces 32 and 42 mating and overlapping each other and ensuring that the overlapping portions are electrically conductive.
A method of forming an electrically heated film of an electrically heated film assembly according to a preferred embodiment of the present invention will be described below with reference to fig. 3A to 5.
Fig. 3A schematically illustrates a method of forming a first electrically heated membrane 30 of an electrically heated membrane assembly according to the present invention. In the embodiments of the present disclosure, the "first spraying direction" is defined as the moving direction D1 from the left side to the right side in fig. 3A. In the embodiments of the present disclosure, the "length direction" is defined as a dimension in the left-right direction in fig. 3A, the "width direction" is defined as a dimension perpendicular to the paper surface direction in fig. 3A, and the "height direction" is defined as a dimension in the up-down direction in fig. 3A. It is to be understood that the invention may assume various alternative orientations and step sequences, except where expressly specified to the contrary.
Fig. 4 illustrates a method 400 of forming an electrically heated membrane of an electrically heated membrane assembly. The method 400 includes step 401: "apply masking tape" step 401 includes applying a first masking tape 11 on the substrate 20 at a location adjacent to the surface area to be painted. The first masking tape 11 is used to cover a part of the upper surface of the base 20, and can prevent the spray of the first electric heating film 30 from being formed outside the surface area to be sprayed on the base 20.
The method 400 further includes step 402: "arranging a flying shield", this step comprises arranging a protruding first flying shield 11a at the edge of the first masking tape 11 adjacent to the surface area to be painted. The bottom surface of the first floating shielding portion 11a is floating, specifically, a certain distance or gap is left between the lower surface of the first floating shielding portion 11a and the upper surface of the substrate 20 to suspend and shield a part of the jet of the nozzle 10, so that the spray gun 10 sprays and forms the first edge portion 31 of the first electric heating film 30 in the gap below the first floating shielding portion 11a, and the thickness of the first edge portion 31 is smaller than that of the first electric heating film 30, so that the edge portion 31 forming the first electric heating film 30 is in a slope shape. Specifically, the thickness of the first edge portion 31 is gradually reduced in a direction toward the first masking tape 11. In a preferred embodiment, the thickness of the first edge portion 31 gradually decreases up to zero thickness at the outermost edge.
In addition, according to the size of the first edge portion 31 of the first electric heating film 30 required by practical application, the protruding length of the first floating shielding part 11a and the floating height of the first floating shielding part 11a (i.e. the height of the lower surface of the first floating shielding part 11a from the upper surface of the substrate 20) can be adjusted to adjust the length of the first edge interface 32 of the first edge portion 31.
In the preferred embodiment of the present invention, the upper surface of the first floating shielding portion 11a is flush with the upper surface of the first shielding tape 11 to prevent the excessive accumulation of the spraying material. In other alternative embodiments, the upper surface of the first flying shield may also be arranged to protrude above the first shield tape or below the first shield tape 11.
The first hanging shielding portion 11a may be made of the same material as the first shielding tape 11 or other material suitable for adhering to the first shielding tape 11.
The method 400 further comprises step 403: "positioning the spray gun" includes positioning the spray gun 10 at a predetermined location above the substrate 20 such that its initial position and height meet the actual spray requirements.
The method 400 further includes the step 404: "spraying an electrically heated film" includes the spray gun 10 spraying a first material in a first spraying direction D1 on a first spraying path covering an area to be sprayed by the first electrically heated film 30 from a start point to an end point to form the first electrically heated film 30 having a first predetermined resistance. The rate at which the spray gun 10 travels in the first spray direction D1 can be controlled as desired to achieve a predetermined resistance for the first material sprayed by the first electrically heated film 30.
Specifically, the method 400 further includes a step 405a of "if the predetermined resistance is reached", determining if the first electrical heating film 30 reaches the first predetermined resistance. If the first predetermined resistance is reached, spraying is stopped, and if the first predetermined resistance is not reached, this means that the thickness of the sprayed first material is not sufficient to provide sufficient resistance, and spraying needs to be continued until the first predetermined resistance is reached.
In a preferred embodiment, the spray gun 10 travels in a step-wise manner away from the gun on the first spray path in step 404. In step 405a, it is determined whether "the predetermined resistance is reached", and if the predetermined resistance is reached, the spraying is interrupted, and then the next portion of spraying is started. If the first predetermined resistance is not reached, spraying continues in the direction D1 and D2 until the first predetermined resistance is reached. This stepped gun approach facilitates control of the thickness of the spray material build-up. In other alternative embodiments, the spray gun may travel in an intermittent or continuous manner and without interruption of the spray.
Next, in step 405b, it is judged whether or not the electric heating film is finished being sprayed, and step 404 is repeated until the whole surface area to be sprayed of the first electric heating film 30 is finished being sprayed.
Fig. 5A-5B illustrate a method 500 of forming the first electrically heated film 30 and the optional second electrically heated film 40 of the electrically heated film assembly of the present invention. The method 500 is similar to the method 400 of fig. 4, with the differences disclosed below.
First, the method 500 includes steps 501 to 504 of spraying the first electric heating film 30, and the steps 501 to 504 are similar to the steps 401 to 404 of the method 400, that is, the steps 501: "attach first masking tape", step 502: "arrange first flying shield", step 503: positioning the spray gun, step 504: "spray first electrically heated film", step 505a, "whether a predetermined resistance is reached": until the first electric heating film 30 has the first predetermined resistance, and step 505b, "whether the first electric heating film is completed by spraying": step 504 is repeated until the spraying is completed for the surface area to be sprayed of the first electrically heated film 30.
Subsequently, the method 500 includes steps 506 to 509 of spraying the second electrically heated film 30, and steps 506 to 509 are similar to steps 501 to 504.
The method 500 further includes step 506: the "attaching of the second masking tape" includes removing the first masking tape and attaching the second masking tape 12 on the upper surface of a portion adjacent to the first edge portion 31 of the first electric heating film 30, and exposing the first edge portion 31 of the first electric heating film 30.
In a preferred embodiment of the present invention, this step may further include disposing a third masking tape 13 on the surface of the substrate 20 adjacent to the surface area to be sprayed of the second electric heating film 40 to define an edge of the second electric heating film 40 toward the second spraying direction D2, preventing the second electric heating film 40 from being sprayed to an undesired position on the substrate 20.
The method 500 further includes step 507: the step of "disposing the second flying shield" includes disposing a second flying shield 12a at an edge of the first edge portion 31 of the second shield tape 12 adjacent to the first electric heating film 30. A gap is left between the lower surface of the second floating shielding portion 12a and the upper surface of the substrate 20, so that the second floating shielding portion 12a shields a part of the jet of the nozzle, and the spray gun 10 sprays the second edge portion 41 of the second electric heating film 40 in the gap below the second floating shielding portion 12 a. Further, in the present invention, the second edge portion 41 overlaps, i.e., at least partially overlaps, the first edge portion 31 of the first electric heating film 30 to form an overlapping portion, and the overlapping portion also forms an electric path.
The method 500 further includes step 508: "repositioning the spray gun" includes positioning the spray gun 10 at a predetermined location above the substrate 20 such that its initial position and height meet the actual spray requirements.
The method 500 further includes a step 509 of "spraying the second electrically heated film", which includes the spray gun 10 spraying the second material on a second spray path to form the second electrically heated film 40, wherein the second spray path covers an area to be sprayed by the second electrically heated film 40 from the start point to the end point. In the preferred embodiment of the present invention, as shown in fig. 3A-3B, the second spray path is opposite the first spray path, and thus the second spray direction D2 is co-directional with the second spray path. In other embodiments, the second spray path may be angled with respect to the first spray path. And in other embodiments, the second spray path may not be linear, as in fig. 2B, the second spray path is "Contraband" shaped and has two 90 degree angles.
The method 500 further includes a step 510a of determining whether the predetermined resistance is reached, so that the second electric heating film 40 is sprayed to reach a second predetermined resistance.
Next, in step 510b, it is judged whether or not the second electric heating film is completed, and step 509 is repeated until the surface area to be sprayed of the second electric heating film 40 is sprayed.
Adopt according to this disclosed electrical heating membrane module, set up unsettled shielding to shielding the sticky tape during electrical heating membrane spraying technology, compare with current electrical heating membrane module, only need increase lower cost unsettled shielding can realize, the commonality is good. The end area and the lap joint area of the heating coating form a slope-shaped edge part, and the problems of easy peeling and warping are solved.
According to the spraying forming method of the electric heating membrane assembly, the electric heating membrane is sprayed step by step without programming a loop path, a gun walking procedure and the complexity of the spraying path during spraying are simplified, and the size of the overlapping area can be adjusted through the height of a gap reserved on the lower surface of the suspended shielding part and the protruding length of the suspended shielding part, so that the actual spraying requirement is met.
While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to those skilled in the relevant art that the disclosed subject matter can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and not as a basis for any limitation on the disclosure.
Claims (10)
1. A spray formed electrically heated membrane assembly, said electrically heated membrane assembly (10) comprising:
a base body (20) for supporting the substrate,
a first electric heating film (30), the first electric heating film (30) being formed at a predetermined position on the base body (20) by spraying a first material, and the first material being sprayed so that the first electric heating film (30) has a first predetermined resistance,
it is characterized in that the preparation method is characterized in that,
the first electrically heated membrane (30) has a first edge portion (31), the first edge portion (31) having a gradually decreasing thickness.
2. An electrically heated membrane assembly according to claim 1,
further comprising a second electrically heated film (40), the second electrically heated film (40) being formed at another predetermined position on the base body (20) by spraying a second material and causing the second electrically heated film (40) to have a second predetermined resistance,
wherein the second electrically heated film (40) has a second edge portion (41) which at least partially overlaps the first edge portion (31) of the first electrically heated film (30) to form an electrically conductive overlap.
3. An electrically heated membrane assembly according to claim 2,
in the overlap portion, a first edge interface (32) of the first edge portion (31) and a second edge interface (42) of the second edge portion (41) are joined in a face contact manner,
wherein the first edge interface (32) and the second edge interface (42) are inclined with respect to an upper surface of the substrate (20).
4. An electrically heated membrane assembly according to claim 2,
the second material is the same material as the first material.
5. An electrically heated membrane assembly according to claim 2,
the first material and/or the second material is a metal for spraying.
6. A method for spray forming of an electrically heated membrane module, the method comprising:
applying a first masking tape (11) to the substrate (20) at a position adjacent to the surface area to be painted;
-positioning a lance (10) above the base body (20); and
-the spray gun (10) spraying a first material on a first spray path to form a first electrically heated film (30) having a first predetermined resistance,
it is characterized in that the preparation method is characterized in that,
the method further comprises the following steps: arranging a protruding first suspended shielding part (11a) at the edge of the first shielding adhesive tape (11) adjacent to the surface area to be sprayed, wherein a gap is reserved between the lower surface of the first suspended shielding part (11a) and the upper surface of the base body (20), so that the first suspended shielding part (11a) can shield a part of the first spraying path, the spray gun (10) sprays a first edge part (31) forming the first electric heating film (30) in the gap below the first suspended shielding part (11a), and the thickness of the first edge part (31) is gradually reduced along the direction towards the first shielding adhesive tape (11).
7. The method of claim 6,
the step of the spray gun (10) spraying the first material on the first spray path to form the first electrically heated film (30) comprises: the spray gun (10) is advanced stepwise in a direction parallel to the substrate (20) and sprays the first material, wherein the spray gun (10) is stepped on the first spray path when the first electrically heated film (30) within a spray range of the spray gun (10) has the first predetermined resistance.
8. The method of claim 6,
the method further comprises the following steps:
-removing the first masking tape (11) and affixing a second masking tape (12) on the upper surface of a portion of the first electrically heated film (30) adjacent to the first edge portion (31) and exposing the first edge portion (31) of the first electrically heated film (30);
-repositioning the lance (10) above the base body (20); and
-the spray gun (10) spraying a second material on a second spray path to form a second electrically heated film (40) having a second predetermined resistance,
and further comprising arranging a protruding second flying shield (12a) at an edge of the second shield tape (12) adjacent to a first edge portion (31) of the first electric heating film (30), leaving a gap between a lower surface of the second flying shield (12a) and an upper surface of the base body (20), so that the second flying shield (12a) can shield a portion of the second spray path, so that the spray gun (10) sprays a second edge portion (41) forming the second electric heating film (40) in the gap under the second flying shield (12a), and so that the second edge portion (41) overlaps at least partially with the first edge portion (31) to form an electrically conductive lap portion.
9. The method of claim 8,
prior to the step of the spray gun (10) spraying the second material along the second spray path to form the second electrically heated film (40), the method further comprises:
-providing a third masking tape (13) on the surface of the substrate (20) adjacent to the surface area to be sprayed of the second electrical heating film (40).
10. The method of claim 8,
the first material and/or the second material is a metal for spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362198.8A CN113079596B (en) | 2021-04-02 | 2021-04-02 | Electric heating membrane assembly and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362198.8A CN113079596B (en) | 2021-04-02 | 2021-04-02 | Electric heating membrane assembly and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113079596A true CN113079596A (en) | 2021-07-06 |
| CN113079596B CN113079596B (en) | 2022-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110362198.8A Active CN113079596B (en) | 2021-04-02 | 2021-04-02 | Electric heating membrane assembly and forming method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115770712A (en) * | 2021-09-07 | 2023-03-10 | 中国航发商用航空发动机有限责任公司 | Spraying method of sealing labyrinth structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256395A (en) * | 1968-05-11 | 1971-12-08 | Kurt Gaiser | Electrical surface heating |
| CN209994569U (en) * | 2019-01-18 | 2020-01-24 | 中国商用飞机有限责任公司 | Electric anti-icing device |
| CN110769529A (en) * | 2019-11-12 | 2020-02-07 | 中国商用飞机有限责任公司 | Electric heating film structure and forming method of electric heating film |
| CN111301691A (en) * | 2020-02-27 | 2020-06-19 | 中国商用飞机有限责任公司 | Electric heating unit for preventing and removing ice |
| CN111647837A (en) * | 2020-07-20 | 2020-09-11 | 矿冶科技集团有限公司 | Shielding method for preparing hot spraying thick coating |
-
2021
- 2021-04-02 CN CN202110362198.8A patent/CN113079596B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256395A (en) * | 1968-05-11 | 1971-12-08 | Kurt Gaiser | Electrical surface heating |
| CN209994569U (en) * | 2019-01-18 | 2020-01-24 | 中国商用飞机有限责任公司 | Electric anti-icing device |
| CN110769529A (en) * | 2019-11-12 | 2020-02-07 | 中国商用飞机有限责任公司 | Electric heating film structure and forming method of electric heating film |
| CN111301691A (en) * | 2020-02-27 | 2020-06-19 | 中国商用飞机有限责任公司 | Electric heating unit for preventing and removing ice |
| CN111647837A (en) * | 2020-07-20 | 2020-09-11 | 矿冶科技集团有限公司 | Shielding method for preparing hot spraying thick coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115770712A (en) * | 2021-09-07 | 2023-03-10 | 中国航发商用航空发动机有限责任公司 | Spraying method of sealing labyrinth structure |
| CN115770712B (en) * | 2021-09-07 | 2023-09-19 | 中国航发商用航空发动机有限责任公司 | Spraying method of sealing comb tooth structure |
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| CN113079596B (en) | 2022-06-03 |
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