CN108359986A - Liner stream wards off technique and wards off technique with plugging structure and stream - Google Patents
Liner stream wards off technique and wards off technique with plugging structure and stream Download PDFInfo
- Publication number
- CN108359986A CN108359986A CN201810181784.0A CN201810181784A CN108359986A CN 108359986 A CN108359986 A CN 108359986A CN 201810181784 A CN201810181784 A CN 201810181784A CN 108359986 A CN108359986 A CN 108359986A
- Authority
- CN
- China
- Prior art keywords
- liner
- lug boss
- plugging structure
- pipe fitting
- closure part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/005—Coating with enamels or vitreous layers by a method specially adapted for coating special objects
Abstract
Technique, which is warded off, the invention discloses a kind of liner stream wards off technique with plugging structure and stream.Liner enameling process plugging structure includes closure part and lug boss, lug boss is arranged on closure part, when plugging structure is inserted into pipe fitting, the part-structure of lug boss is located in the through-hole being connected to pipe fitting on liner, and gap is all had between lug boss and the hole wall of through-hole and between lug boss and the inner wall of pipe fitting.The present invention passes through closure part and raised portion fits, make that the inner wall of liner can block pipe fitting during enameling process, glaze slip can flow in pipe fitting during anti-fluid stopping is warded off or sprayed, so that need not be cleared up the glaze slip inside pipe fitting after the completion of enameling process.Also, makes boss in the through-hole being connected to pipe fitting on liner, and form gap between through-hole, the region of omission can be had to avoid application of slip process, improve application of slip quality.
Description
Technical field
The present invention relates to enamel processing technique field, especially a kind of liner stream wards off technique and wards off work with plugging structure and stream
Skill.
Background technology
Heat pump water-heating machine enamel cistern liner cylinder is by liner stage casing, upper low head and is welded on stage casing, on end socket
Several pipe fitting compositions.Pipe fitting is the critical component with external waterway circulating, is the antiseptic property for influencing entire inner water tank
Key Quality region.
Enamel inner container is generally warded off technique using stream and is prepared, and need to pass through welding → stream is warded off → and spray → drying → being sintered and waiting
Journey, and when liner stream is warded off, since connector is fixed by welding on liner stage casing, structure change dramatically, therefore joint area
Quality control difficulty is high, easily occurs lacking porcelain, needs later process to carry out benefit and wards off, repairs the enamel coating of orifice region.
Process of warding off is mended to be warded off by manually using cotton swab to dip the dry film coating benefit that glaze slip will fall off in orifice region, and nozzle area
The extremely difficult cleaning of enamel powder fallen in domain may cause the remaining dry film of orifice region to be destroyed using high pressure air rifle, can only
It is time-consuming and laborious to ensure to clean out manually using the wiping cleaning of wet rag.
Existing stream is warded off in technique, and a part can be blocked using special tooling line up, can avoid Enamel Slip
It leaks outside from inner wall step, but there are the following problems：Enamel Slip is good to be attached to metal base (such as liner stage casing, pipe connects
Head) contact surface, it is warded off through stream, after baking operation, Enamel Slip can be made for dry film state in disassembling fixture by wet film variation
Enamel dry film is broken into powdered, i.e. nozzle enamel coating is destroyed, while being taken out of and being fallen in pipe fitting through tooling, will if any thread
Cause thread stuck.
Invention content
In view of this, an object of the present invention is to provide a kind of liner enameling process closure knot that can improve application of slip quality
Structure and enameling process.
In a first aspect, a kind of liner enameling process plugging structure is provided, for during liner carries out enameling process
The pipe fitting being arranged on liner is blocked, the plugging structure includes closure part and lug boss,
The closure part is inserted into blocking into the pipe fitting and by the pipe fitting,
The lug boss is arranged on the closure part, when the plugging structure is inserted into the pipe fitting, the protrusion
The part-structure in portion is located in the through-hole being connected to the pipe fitting on the liner, the hole wall of the lug boss and the through-hole
Between and the lug boss and the inner wall of the pipe fitting between all have gap.
Preferably, the plugging structure further includes interconnecting piece, and the interconnecting piece is arranged on the closure part, is used for and institute
State pipe fitting connection.
Preferably, the closure part is in elongate structure, and the first end in the closure part is arranged in the lug boss.
Preferably, the lug boss includes the cylindrical structure that face size is less than the closure part face size.
Preferably, a part of structure of the lug boss is extend into the inner cavity of the liner.
Preferably, the lug boss stretches into the length of the interior gallbladder intracavity less than 1mm.
Preferably, the surface of the lug boss is shiny surface；Alternatively,
The surface of the lug boss is provided with non-sticky dope layer；Alternatively,
The surface of the lug boss is provided with volatile layer.
Preferably, the volatile layer is in solid-state or not flowable liquid when temperature is less than threshold temperature, in temperature height
It volatilizees when threshold temperature.
Preferably, the volatile layer includes paraffin, resin, diluent and/or liquefied petroleum gas
Preferably, the thickness of the volatile layer is 0.01-2mm.
Preferably, be provided with connectivity structure in the closure part, for by the hole wall of the lug boss and the through-hole it
Between and the space between the lug boss and the inner wall of the pipe fitting be connected to exterior space.
Preferably, the connectivity structure includes the cavity being arranged inside the closure part, and the cavity is connected to outside,
Venthole is provided on the closure part, the venthole is connected to the cavity inside the closure part, the venthole setting
The part that first end in the closure part is not connect with the lug boss.
Preferably, the interconnecting piece is formed on the side wall of the closure part, alternatively,
The interconnecting piece includes tubular construction, and the tubular construction is sleeved on the outside of the closure part.
Second aspect provides a kind of enameling process of liner, using above-mentioned plugging structure to described before the application of slip starts
Pipe fitting on liner is blocked, and removes the plugging structure after the application of slip terminates, and make to be formed on the liner
The enamel layer opposite with the plugging structure is broken.
Preferably, the plugging structure is enterprising in the lug boss of the plugging structure before being blocked to the liner
Row overlay film operates, to form volatile layer or non-sticky dope layer.
Liner stream provided by the invention wards off technique plugging structure, by closure part and raised portion fits, makes in liner
Wall can be blocked to pipe fitting during enameling process, and glaze slip can flow to pipe fitting during anti-fluid stopping is warded off or sprayed
It is interior, so that need not be cleared up the glaze slip inside pipe fitting after the completion of enameling process.Also, make boss in interior
In the through-hole being connected to pipe fitting on courage, and gap is formed between through-hole, the region of omission can be had to avoid application of slip process,
Improve application of slip quality.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows inner-tube structure schematic diagram；
Fig. 2 shows the schematic cross-sections of liner and pipe fitting junction；
Fig. 3 shows that liner stream provided by the invention wards off the structural schematic diagram of technique plugging structure；
Fig. 4 shows the schematic cross-section of plugging structure in an axial direction；
Fig. 5 shows application of slip process liner and pipe fitting and the structural schematic diagram of plugging structure.
Specific implementation mode
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Ability
Domain it is to be appreciated by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and attached drawing be not necessarily by than
What example was drawn.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or implying relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
Liner stream provided by the invention wards off technique plugging structure for carrying out when stream wards off process inner water tank to pipe
Connector is blocked, and glaze slip can flow in pipe fitting during anti-fluid stopping is warded off, and is impacted to the normal use of pipe fitting.
As shown in Figure 1, 2, at least one pipe fitting 20 is provided on the liner 10 of water tank, the pipe fitting 20 is tubulose knot
Structure, the pipe fitting 20 is used for and piping connection, the pipe fitting 20 be fixedly connected on the outer wall of the liner 10 and with institute
The inside connection for stating liner 10 can be used to supply water or be discharged into the liner 10 with connecting line by the pipe fitting 20.
The through-hole 11 coordinated with the pipe fitting 20 is provided on the side wall of the liner 10, the pipe fitting 20 is installed to be led to described
At 11 corresponding position of hole, the pipe fitting 20 is set to be connected to 10 inside of the liner by the through-hole 11, it is preferable that described
Pipe fitting 20 is fixedly attached to by welding on the outer wall of the liner 10.Limit is formed with inside the pipe fitting 20
Portion 21, for stopping to the plugging structure 30 (as shown in Figure 3,4), the limiting section 21 is preferably the limiting section 21
The bulge-structure formed on the inner wall of the pipe fitting 20, further, the limiting section 21 is along 20 inner wall of the pipe fitting
It is entire it is circumferential formed, and be positioned close at the position of the liner 10.The limiting section 21 and 20 axis of the pipe fitting
Vertical and far from the liner 10 face is contacted with the plugging structure 30,21 radially inner side wall of the limiting section and the liner
10 inner wall constitutes enamel face and is covered by enamel layer.
As shown in Fig. 3,4,5, the plugging structure 30 includes closure part 31, lug boss 32, fastening part 33 and interconnecting piece 34,
The closure part 31 is cylindrical-shaped structure, and the closure part 31 is inserted into the pipe fitting 20, and with the pipe fitting
The contact of limiting section 21 in 20 blocks the pipe fitting 20.The lug boss 32 is arranged the first of the closure part 31
The end at end, 32 preferably cylindrical protrusion of the lug boss, and the end face diameter of the lug boss 32 are less than the closure
The end face outer diameter in portion 31, the axis collinear of the lug boss 32 and the closure part 31.Further, the end of the lug boss 32
Face diameter is less than the internal diameter of the through-hole 11 on the liner 10, and the lug boss 32 is made to can extend into the through-hole 11, and
Make radially between the outer wall of the lug boss 32 and the inner wall of the through-hole 11 there are gap A, and the lug boss 32
Outer wall and the inner radial wall of the limiting section 21 between there is also gaps, it is preferable that the gap be A.
The second end in the closure part 31 is arranged in the fastening part 33, and the fastening part 33 with fastening tool for matching
It closes, so that the plugging structure 30 is realized with the pipe fitting 20 and connect, it is preferable that the fastening part 33 is prismatic structures, example
Such as, triangular prism, quadrangular etc., further, the fastening part 33 are the tubular construction that inside is formed with cavity, and set is attached to institute
It states on closure part 31, and is connected together with the closure part 31.Preferably, the plugging structure 30 and the pipe fitting 20 are logical
Threaded connection is crossed, such as when internal thread is arranged in the pipe fitting 20, the plugging structure 30 is as shown in Figure 3,4, the connection
Portion 34 is arranged on the outer wall of the closure part 31, screw thread is provided on the interconnecting piece 34 and can be with the pipe fitting 20
Screw-internal thread fit.Preferably, the interconnecting piece 34 is positioned close at the position of the fastening part 33, alternatively, can also be directly
Screw thread is formed on the outer wall of the closure part 31.When external screw thread is arranged in the pipe fitting 20, the plugging structure 30 such as Fig. 5
Shown, the interconnecting piece 34 is the tubular structure for being formed in 31 radial outside of the interconnecting piece, the axis of the interconnecting piece 34 with
The axis collinear of the closure part 31, the first end of the interconnecting piece 34 are fixed to the position of the second end close to the closure part 31
It sets, it is preferable that the interconnecting piece 34 is connected on the fastening part 33.In diameter between the interconnecting piece 34 and the closure part 31
There are gaps upwards, also, the gap is more than the wall thickness of the pipe fitting 20, is set on the radially inner side wall of the interconnecting piece 34
It is equipped with internal thread, the screw thread coordinates with the external screw thread on 20 outer wall of the pipe fitting.
Preferably, the closure part 31 is tubular construction, i.e. the inside of the closure part 31 forms cavity, the lug boss
The first end of 32 pairs of closure parts 31 blocks, and the first end in the closure part 31 is provided with venthole 35, institute
Venthole 35 is stated to be arranged between the outer wall and the outer wall of the closure part 31 of the lug boss 32, the venthole 35 with it is described
The inside of closure part 31 is connected to.Preferably, the fastening part 33 is arranged on the outer wall of the closure part 31, i.e., the described closure part
31 second end is connected to the external of the closure part 31.Preferably, the venthole 35 is set along the circumferential direction of the lug boss 32
It is equipped with multiple, is preferably provided with six.Alternatively, of the ventilation hole 35 can be determined according to the glaze slip mobility of enameling process
Number, when glaze slip mobility is preferable, reduces the quantity of the ventilation hole 35, increases the ventilation hole when glaze slip mobility is poor
35 number, to ensure the proper flow of glaze slip, while it is described that glaze slip will not again largely flowed to by the ventilation hole 35
Inside closure part 31.The setting of the venthole 35 makes glaze slip readily flow to the lug boss 32 and the through-hole on the liner 10
It (is introduced in detail below) in gap between 11.
Further, the surface of the plugging structure 30 is provided with volatile layer (not shown), and the volatile layer is at least
It is arranged on the surface of the first end and the lug boss 32 of the closure part 31, the volatile layer passes through in the lug boss 32
Surface carries out overlay film and operates to be formed.The volatile layer is in solid-state or sticky (not flowable) liquid under room temperature or certain isoperibol
State, under high temperature (about 130 DEG C) environment, the volatile layer can volatilize, it is preferable that the volatile layer includes paraffin, resin, dilute
Release the substances such as agent, liquefied petroleum gas.Alternatively, characteristic of the volatile layer according to material itself, when less than threshold temperature, in solid
State or sticky liquid, volatilize when higher than threshold temperature.Preferably, the thickness of the volatile layer is B, and the value of B is 0.01-
2mm。
In other embodiments, the first end face of the surface of the lug boss 32 and the closure part 31 can also be arranged
At shiny surface, the roughness of the shiny surface is preferably Ra ＜ 12.5um.Alternatively, in the surface of the lug boss 32 and the envelope
Non-sticky dope layer is arranged in the first end face in stifled portion 31, and the volatile layer can be no longer arranged in such as Teflon etc. at this time.
When the plugging structure 30 is installed in the pipe fitting 20, the first end of the closure part 31 not with the protrusion
The part that portion 32 connects abuts on the limiting section 21 in the pipe fitting 20.A part for the lug boss 32 is located at institute
It states in the through-hole 11 on liner 10, and end face of the lug boss 32 far from the closure part 31 is stretched into across the through-hole 11
Into the inner cavity of the liner 10, it is preferable that it is D that the lug boss 32, which extend into the length in the inner cavity of the liner 10, D's
Value is preferably smaller than 1mm.Since the lug boss 32 extend into length certain in the inner cavity of the liner 10 so that in the application of slip
When with 32 corresponding part of the lug boss formed enamel layer it is thinner than other parts, to make it easier to be crushed, and be crushed
When be not easy to impact other parts.Further, in order to not influence application of slip process, the lug boss 32 extend into described
Length in the inner cavity of liner 10 is the thickness that D is less than the enamel layer formed inside the liner 10.When the lug boss 32
When being above coated with the volatile layer, i.e., the outer surface of the described volatile layer extend into the inside of the liner 10.The bulge-structure
32 side wall is formed with gap between the inner wall of the through-hole 11 radially, and the venthole 35 makes the bulge-structure 32
Gap and 31 inside of the closure part between the through-hole 11 are connected to.
The present invention also provides a kind of enameling process of inner water tank, specifically include：
The volatile layer is coated on the plugging structure 30, and the volatilization is especially coated on the lug boss 32
The plugging structure 30, is then installed on the pipe fitting 20 by layer.Then start enameling process, it is preferable that the application of slip
Technique includes that stream such as wards off, sprays, drying, being sintered at the processes, after the completion of the above process, in 10 inner wall of the liner and the protrusion
Enamel layer 12 is formed in the end face in portion 32 and the lug boss 32 and the gap of the through-hole 11, as shown in figure 5, the enamel
The thickness of layer 12 is C, it is preferable that described in the thickness B+ of volatile layer described in gap A=of the lug boss 32 with the through-hole 11
The thickness C of enamel layer 12.Due to being coated with the volatile layer, volatile layer meeting when being dried on the plugging structure 30
Voluntarily volatilization is dissipated, or part is absorbed by the enamel layer 12, makes to be formed between the enamel layer 12 and the lug boss 32
Gap, so will not be damaged to the enamel layer 12 when removing the plugging structure 30 after completing the enameling process.
After the plugging structure 30 is removed, the enamel layer 12 with 11 corresponding region of the through-hole is not due to having attachment surface to touch
Keep it broken, and the enamel layer 12 being attached on the inner wall of the liner 10 will not be made to be destroyed.
Liner stream provided by the invention wards off technique plugging structure, can be with during carrying out enameling process to the inner wall of liner
Pipe fitting is blocked, glaze slip can flow in pipe fitting during anti-fluid stopping is warded off or sprayed, so that enameling process is completed
The glaze slip inside pipe fitting need not be cleared up afterwards.And it will not be destroyed when so that plugging structure is removed by the way that volatile layer is arranged
Enamel layer, to ensure the quality of the application of slip.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from the basic of the present invention
In the case of principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details be made
It changes, is all included in scope of the presently claimed invention.
Claims (15)
1. a kind of liner enameling process plugging structure, for during liner carries out enameling process to being arranged on liner
Pipe fitting is blocked, which is characterized in that and the plugging structure includes closure part and lug boss,
The closure part is inserted into blocking into the pipe fitting and by the pipe fitting,
The lug boss is arranged on the closure part, when the plugging structure is inserted into the pipe fitting, the lug boss
Part-structure is located in the through-hole being connected to the pipe fitting on the liner, between the lug boss and the hole wall of the through-hole
And all have gap between the lug boss and the inner wall of the pipe fitting.
2. liner enameling process plugging structure according to claim 1, which is characterized in that the closure part is in elongated knot
The first end in the closure part is arranged in structure, the lug boss.
3. liner enameling process plugging structure according to claim 2, which is characterized in that the lug boss includes end face
Size is less than the cylindrical structure of the closure part face size.
4. liner enameling process plugging structure according to claim 1, which is characterized in that a part for the lug boss
Structure is extend into the inner cavity of the liner.
5. liner enameling process plugging structure according to claim 4, which is characterized in that the lug boss stretches into described
The length of interior gallbladder intracavity is less than 1mm.
6. liner enameling process plugging structure according to claim 1, which is characterized in that the surface of the lug boss is
Shiny surface；Alternatively,
The surface of the lug boss is provided with non-sticky dope layer；Alternatively,
The surface of the lug boss is provided with volatile layer.
7. liner enameling process plugging structure according to claim 6, which is characterized in that the volatile layer is low in temperature
It is in solid-state or not flowable liquid when threshold temperature, volatilizees when temperature is higher than threshold temperature.
8. liner enameling process plugging structure according to claim 7, which is characterized in that the volatile layer includes stone
Wax, resin, diluent and/or liquefied petroleum gas.
9. liner enameling process plugging structure according to claim 7, which is characterized in that the thickness of the volatile layer is
0.01-2mm。
10. liner enameling process plugging structure according to claim 2, which is characterized in that be arranged in the closure part
There is connectivity structure, being used for will be between the lug boss and the hole wall of the through-hole and in the lug boss and the pipe fitting
Space between wall is connected to exterior space.
11. liner enameling process plugging structure according to claim 10, which is characterized in that the connectivity structure includes
Cavity inside the closure part is set, and the cavity is connected to outside, and venthole is provided on the closure part, described logical
Stomata is connected to the cavity inside the closure part, the venthole be arranged the closure part first end not with the protrusion
The part of portion's connection.
12. liner enameling process plugging structure according to claim 1, which is characterized in that the plugging structure also wraps
Interconnecting piece is included, the interconnecting piece is arranged on the closure part, for being connect with the pipe fitting.
13. liner enameling process plugging structure according to claim 12, which is characterized in that the interconnecting piece is formed in
On the side wall of the closure part, alternatively,
The interconnecting piece includes tubular construction, and the tubular construction is sleeved on the outside of the closure part.
14. a kind of enameling process of liner, which is characterized in that using such as one of claim 1 to 13 institute before the application of slip starts
The plugging structure stated blocks the pipe fitting on the liner, removes the plugging structure after the application of slip terminates, and
Keep the enamel layer opposite with the plugging structure formed on the liner broken.
15. enameling process according to claim 14, which is characterized in that the plugging structure is sealed to the liner
Overlay film operation is carried out before stifled on the lug boss of the plugging structure, to form volatile layer or non-sticky dope layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181784.0A CN108359986B (en) | 2018-03-06 | 2018-03-06 | Plugging structure for liner flow enameling process and flow enameling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181784.0A CN108359986B (en) | 2018-03-06 | 2018-03-06 | Plugging structure for liner flow enameling process and flow enameling process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108359986A true CN108359986A (en) | 2018-08-03 |
| CN108359986B CN108359986B (en) | 2023-03-24 |
Family
ID=63003525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181784.0A Active CN108359986B (en) | 2018-03-06 | 2018-03-06 | Plugging structure for liner flow enameling process and flow enameling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108359986B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488507A (en) * | 2018-03-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN112779538A (en) * | 2020-03-16 | 2021-05-11 | 青岛经济技术开发区海尔热水器有限公司 | Inner container enameling tool |
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| GB1394958A (en) * | 1972-12-30 | 1975-05-21 | Goeppner Kaiserslautern Eisen | Method of enamelling the interior of finned metal pipes |
| CN203923376U (en) * | 2014-06-23 | 2014-11-05 | 珠海格力电器股份有限公司 | A kind of enamel inner container application of slip protective tooling |
| CN104831278A (en) * | 2014-02-06 | 2015-08-12 | 福特全球技术公司 | Method for coating bore and cylinder block of internal combustion engine |
| CN104988502A (en) * | 2015-06-24 | 2015-10-21 | 东莞市天美新自动化设备有限公司 | Automatic spray prickling pretreatment, enamelling, drying and firing system for water heater inner containers |
| CN106224656A (en) * | 2016-08-18 | 2016-12-14 | 珠海格力电器股份有限公司 | Water tank intake-outlet structure and water tank |
| CN106400013A (en) * | 2016-11-10 | 2017-02-15 | 东莞市天美新自动化设备有限公司 | Automatic enameling machine and method for kitchen Po water heater inner containers |
| CN208022919U (en) * | 2018-03-06 | 2018-10-30 | 珠海格力电器股份有限公司 | Liner stream wards off technique plugging structure |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394958A (en) * | 1972-12-30 | 1975-05-21 | Goeppner Kaiserslautern Eisen | Method of enamelling the interior of finned metal pipes |
| CN104831278A (en) * | 2014-02-06 | 2015-08-12 | 福特全球技术公司 | Method for coating bore and cylinder block of internal combustion engine |
| CN203923376U (en) * | 2014-06-23 | 2014-11-05 | 珠海格力电器股份有限公司 | A kind of enamel inner container application of slip protective tooling |
| CN104988502A (en) * | 2015-06-24 | 2015-10-21 | 东莞市天美新自动化设备有限公司 | Automatic spray prickling pretreatment, enamelling, drying and firing system for water heater inner containers |
| CN106224656A (en) * | 2016-08-18 | 2016-12-14 | 珠海格力电器股份有限公司 | Water tank intake-outlet structure and water tank |
| CN106400013A (en) * | 2016-11-10 | 2017-02-15 | 东莞市天美新自动化设备有限公司 | Automatic enameling machine and method for kitchen Po water heater inner containers |
| CN208022919U (en) * | 2018-03-06 | 2018-10-30 | 珠海格力电器股份有限公司 | Liner stream wards off technique plugging structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488507A (en) * | 2018-03-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN108488507B (en) * | 2018-03-26 | 2019-06-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN112779538A (en) * | 2020-03-16 | 2021-05-11 | 青岛经济技术开发区海尔热水器有限公司 | Inner container enameling tool |
| CN112779538B (en) * | 2020-03-16 | 2023-03-17 | 青岛经济技术开发区海尔热水器有限公司 | Inner container enameling tool |
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| Publication number | Publication date |
|---|---|
| CN108359986B (en) | 2023-03-24 |
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