CN104110854A - Water heater liner and production method thereof - Google Patents
Water heater liner and production method thereof Download PDFInfo
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- CN104110854A CN104110854A CN201410175499.XA CN201410175499A CN104110854A CN 104110854 A CN104110854 A CN 104110854A CN 201410175499 A CN201410175499 A CN 201410175499A CN 104110854 A CN104110854 A CN 104110854A
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- bag body
- inner bag
- water heater
- heater liner
- modified epoxy
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Abstract
The invention discloses a water heater liner and a production method thereof. The water heater liner comprises a liner body and a corrosion resistant coating, and the corrosion resistant coating formed by sintering of modified epoxy powder is arranged on the inner surface of the liner body. According to the water heater liner, the surface of the liner body is provided with the corrosion resistant coating formed by sintering of the modified epoxy powder, so that the water heater liner has better resistance to chemical corrosion and boiling water. The corrosion resistant coating can be produced to be thinner, the sintering temperature is lower in the production process, and a production process is simpler.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly, particularly a kind of water heater liner and manufacture method thereof.
Background technology
Inner bag is the container of water heater splendid attire water, contacts for a long time with water, can produce corrosion, causes inner bag to leak.In correlation technique, the inner bag of storage-type electric water heater mainly contains stainless steel inner container, zinc-plated inner bag, plastic inner container and enamel inner container etc.Enamel inner container is to apply one deck enamel layer at steel plate inwall, avoids corrosion to leak by glaze layer exclusion of water and contacting of steel plate.But enamel layer can be dissolved in water, once enamel layer excessive dissolution can cause steel plate to contact with water, very fast inner bag is just bored a hole by corrosion, causes water heater to leak.And common enamel is due to enamel powder and technological reason, its poor water resistance, boiling water weightlessness is higher, and easily occurs fine crack or crazing, and the phenomenons such as burst porcelain cause the inner bag life-span greatly to be reduced.And from production and processing aspect, the production of enamel inner container, need to pass through the punching moulding of steel plate cabinet body and welding processing, then carry out pre-treatment, again enamel powder is made to glaze slip, after being dried, carry out sintering curing in the sintering furnace of 750-900 DEG C, its complex process and cost are higher again.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.For this reason, it is high that one object of the present invention is to propose a kind of reliability, the water heater liner of low cost of manufacture.
Another object of the present invention is to propose a kind of manufacture method of water heater liner.
According to the water heater liner of the embodiment of the present invention, comprising: inner bag body; And by the erosion shield of modified epoxy powder sinter molding, described erosion shield is located at the inner surface of described inner bag body.
Water heater liner according to an embodiment of the invention, the inner surface of inner bag body is provided with the erosion shield by modified epoxy powder sinter molding, makes water heater liner have better resistance to chemical attack and boiling water resistance energy.And it is thinner that the thickness of erosion shield can be made, the sintering temperature in manufacture process is lower, makes production technology simpler.
In addition, water heater liner according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, the thickness of described erosion shield is 50-120um.
According to one embodiment of present invention, the defatting-bonderizing steel plate that described inner bag body is 1-3mm by thickness is configured to.
According to the manufacture method of the water heater liner of the embodiment of the present invention, comprise the following steps: inner bag body is provided; Modified epoxy powder is sprayed on by the mode of electrostatic spraying on the inner surface of described inner bag body; The inner bag body that is coated with modified epoxy powder is put into sintering furnace and carry out sintering.
The manufacture method of water heater liner according to an embodiment of the invention, forms the erosion shield by modified epoxy powder sinter molding by the inner surface at inner bag body, makes water heater liner have better resistance to chemical attack and boiling water resistance energy.It is thinner that the thickness of erosion shield can be made, and the sintering temperature in manufacture process is lower, makes production technology simpler.
In addition, the manufacture method of water heater liner according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, before modified epoxy powder is sprayed on to the inner surface of inner bag body, the inner surface of inner bag body is carried out to blasting treatment.
According to one embodiment of present invention, before modified epoxy powder is sprayed on to the inner surface of inner bag body, the inner surface of inner bag body is carried out to soda acid and wash processing.
According to one embodiment of present invention, described soda acid is washed to process and is comprised raw burn, degreasing, pickling, neutralization and dry multiple technique.
According to one embodiment of present invention, be 180-250 DEG C to the sintering temperature of the inner bag body that is coated with modified epoxy powder, sintering time is 10-30min.
According to one embodiment of present invention, after sintering curing, the erosion shield thickness that is coated in inner bag body internal surface is 50-120um.
According to one embodiment of present invention, the defatting-bonderizing steel plate that described inner bag body is 1-3mm by thickness is configured to.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Fig. 1 is the structural representation of water heater liner according to an embodiment of the invention;
Fig. 2 is the flow chart of the manufacture method of water heater liner according to an embodiment of the invention.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
As shown in Figure 1, water heater liner 100 according to an embodiment of the invention, comprising: inner bag body 10 and the erosion shield 20 by modified epoxy powder sinter molding.Erosion shield 20 is located at the inner surface of inner bag body 10.
Water heater liner 100 according to an embodiment of the invention, the inner surface of inner bag body 10 is provided with the erosion shield 20 by modified epoxy powder sinter molding, makes water heater liner 100 have better resistance to chemical attack and boiling water resistance energy.And it is thinner that the thickness of erosion shield 20 can be made, the sintering temperature in manufacture process is lower, makes production technology simpler.
According to one embodiment of present invention, the thickness of erosion shield 20 can be 50-120um.Thus, can reduce the use amount of modified epoxy powder, reduce production costs.According to one embodiment of present invention, the defatting-bonderizing steel plate that inner bag body 10 can be 1-3mm by thickness is configured to.For example, can shear by the defatting-bonderizing steel plate to 1-3mm, punch forming be welded into inner bag body 10.
As shown in Figure 2, the manufacture method of water heater liner according to an embodiment of the invention, comprises the following steps:
Inner bag body (S100) is provided, for example, can shears steel plate, punch forming the inner bag body that is welded.
Modified epoxy powder is sprayed on by the mode of electrostatic spraying on the inner surface of inner bag body (S200), tries hard to inner bag body to be put in electrostatic spraying device, by modified epoxy powder by spray gun spraying on the inner surface of inner bag body.
The inner bag body that is coated with modified epoxy powder is put into sintering furnace and carry out sintering (S300), form erosion shield with the inner surface at inner bag body.
The manufacture method of water heater liner according to an embodiment of the invention, forms the erosion shield by modified epoxy powder sinter molding by the inner surface at inner bag body, makes water heater liner have better resistance to chemical attack and boiling water resistance energy.It is thinner that the thickness of erosion shield can be made, and the sintering temperature in manufacture process is lower, makes production technology simpler.
According to one embodiment of present invention, before modified epoxy powder is sprayed on to the inner surface of inner bag body, can carry out blasting treatment to the inner surface of inner bag body.The blasting treatment here refers to, steel sand is sprayed to the inner surface of inner bag body by high voltage apparatus, the inner surface of inner bag body is hit by steel sand.Thus, can make that erosion shield is connected with inner bag body with family firmly.Be understandable that, before inner bag body is sprayed, the processing mode of the inner surface to inner bag body is not limited to this, for example, according to one embodiment of present invention, before modified epoxy powder is sprayed on to the inner surface of inner bag body, the inner surface of inner bag body is carried out to soda acid and wash processing.For example, soda acid is washed processing can comprise raw burn, degreasing, pickling, neutralization and dry multiple technique, so that erosion shield and inner bag body mutually combine.
According to one embodiment of present invention, be 180-250 DEG C to the sintering temperature of the inner bag body that is coated with modified epoxy powder, sintering time is 10-30min.Thus, can reduce the energy consumption that water heater liner is produced, enhance productivity, reduce production costs.
According to one embodiment of present invention, after sintering curing, the erosion shield thickness that is coated in inner bag body internal surface can be 50-120um.Thus, can reduce the use amount of modified epoxy powder, reduce production costs.According to one embodiment of present invention, the defatting-bonderizing steel plate that inner bag body 10 can be 1-3mm by thickness is configured to.For example, can shear by the defatting-bonderizing steel plate to 1-3mm, punch forming be welded into inner bag body 10.According to one embodiment of present invention, inner bag body can have cold-rolled steel sheet to be configured to.
The manufacture method of water heater liner according to an embodiment of the invention, the thickness of erosion shield is thinner, and sintering temperature is lower, and production technology is simple.The water heater liner function admirable of the embodiments of the invention that make, the adherence of erosion shield can reach 1 grade of the highest ranking that EN10209 standard specifies, adhesive force meets the requirement of ISO2409, pull-out test according to ISO4624 result is: >2.5Um, AEG-process can reach 6mm according to ISO1520.
The color of modified epoxy powder of the present invention can be green, blueness or grey.Epoxy powder particle diameter is applicable to electrostatic spraying, and gloss is at 50-95% (according to ISO2813-1978 (E)).This modified epoxy powder proportion is 0.5-3.5g/cm
3.。
Embodiment
By steel plate through cutting, rush, the processes such as weldering becomes inner bag blank, then carries out sandblast pre-treatment.
This routine light plate thickness is 1.8mm cold-rolled steel sheet SPCC.
The steel plate preparing is positioned in electrostatic spraying device, adopts specking spray gun modified epoxy powder evenly to be sprayed to the inner surface that is configured to inner bag body of steel plate, due to the effect of static, powder is adsorbed onto on the inner surface of inner bag body uniformly.
By the inner bag body having sprayed, be transported in sintering furnace, sintering furnace temperature is 200 DEG C, completes through 20 minutes sintering. after cooling, obtain inner bag.
Prepared 10, the sample of 150mm*75mm simultaneously.
Its test test result is:
Surface: smooth, highly polished, be blue, quick-fried without squama, without burnt limit, without stripping porcelain, free from flaw, flawless, without defects such as wrinkles.
Thickness: top: 65um, middle part: 65-85, bottom (port part): 85um
Adhesive force (ISO2409): Gt0
Adherence (EN10209): good, 1 grade,
Resistance to boiling water aggressivity: weightlessness is 1.5g/m
2
Withstand voltage properties: ne-leakage smooth surface
Acid resistance: A level
Alkaline erosion: weightlessness is less than 0.2mg/cm
2
Heatproof acute degeneration: after test, range estimation is without damaging
Pull-out test (ISO4624): >2.5Um
AEG-process (ISO1520): 4mm.
Contrast enamel inner container, performance indications are good.
Enamel inner container technique described in this patent can be adjusted in proper range.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.In addition, those skilled in the art can engage the different embodiment that describe in this description or example and combine.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, amendment, replacement and modification.
Claims (10)
1. a water heater liner, is characterized in that, comprising:
Inner bag body; And
By the erosion shield of modified epoxy powder sinter molding, described erosion shield is located at the inner surface of described inner bag body.
2. water heater liner according to claim 1, is characterized in that, the thickness of described erosion shield is 50-120um.
3. water heater liner according to claim 1, is characterized in that, the defatting-bonderizing steel plate that described inner bag body is 1-3mm by thickness is configured to.
4. a manufacture method for water heater liner, is characterized in that: comprise the following steps:
Inner bag body is provided;
Modified epoxy powder is sprayed on by the mode of electrostatic spraying on the inner surface of described inner bag body;
The inner bag body that is coated with modified epoxy powder is put into sintering furnace and carry out sintering.
5. the manufacture method of water heater liner according to claim 4, is characterized in that, before modified epoxy powder is sprayed on to the inner surface of inner bag body, the inner surface of inner bag body is carried out to blasting treatment.
6. the manufacture method of water heater liner according to claim 4, is characterized in that, before modified epoxy powder is sprayed on to the inner surface of inner bag body, the inner surface of inner bag body is carried out to soda acid and wash processing.
7. the manufacture method of water heater liner according to claim 6, is characterized in that, described soda acid is washed to process and comprised raw burn, degreasing, pickling, neutralization and dry multiple technique.
8. the manufacture method of water heater liner according to claim 1, is characterized in that, is 180-250 DEG C to the sintering temperature of the inner bag body that is coated with modified epoxy powder, and sintering time is 10-30min.
9. the manufacture method of water heater liner according to claim 1, is characterized in that, after sintering curing, the erosion shield thickness that is coated in inner bag body internal surface is 50-120um.
10. the manufacture method of water heater liner according to claim 1, is characterized in that, the defatting-bonderizing steel plate that described inner bag body is 1-3mm by thickness is configured to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175499.XA CN104110854A (en) | 2014-04-28 | 2014-04-28 | Water heater liner and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175499.XA CN104110854A (en) | 2014-04-28 | 2014-04-28 | Water heater liner and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104110854A true CN104110854A (en) | 2014-10-22 |
Family
ID=51707754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410175499.XA Pending CN104110854A (en) | 2014-04-28 | 2014-04-28 | Water heater liner and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109312931A (en) * | 2016-04-06 | 2019-02-05 | 德隆奇电器单股东有限责任公司 | Water boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097059A (en) * | 1993-07-02 | 1995-01-04 | 杜玲英 | Powder spraying solar energy hot water tank and production technology thereof |
| CN2386376Y (en) * | 1999-09-20 | 2000-07-05 | 南京玉环电器有限公司 | Monocrystalline silicon bladder for water heater |
| CN1263815A (en) * | 1999-02-13 | 2000-08-23 | 中外合资合肥荣事达日用电器有限公司 | Technology for making inner steel-plastic container of water heater |
| CN101210738A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Water heater porcelain enamel inner bag and manufacturing method thereof |
| CN204063579U (en) * | 2014-04-28 | 2014-12-31 | 芜湖美的厨卫电器制造有限公司 | Water heater liner |
-
2014
- 2014-04-28 CN CN201410175499.XA patent/CN104110854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097059A (en) * | 1993-07-02 | 1995-01-04 | 杜玲英 | Powder spraying solar energy hot water tank and production technology thereof |
| CN1263815A (en) * | 1999-02-13 | 2000-08-23 | 中外合资合肥荣事达日用电器有限公司 | Technology for making inner steel-plastic container of water heater |
| CN2386376Y (en) * | 1999-09-20 | 2000-07-05 | 南京玉环电器有限公司 | Monocrystalline silicon bladder for water heater |
| CN101210738A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Water heater porcelain enamel inner bag and manufacturing method thereof |
| CN204063579U (en) * | 2014-04-28 | 2014-12-31 | 芜湖美的厨卫电器制造有限公司 | Water heater liner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109312931A (en) * | 2016-04-06 | 2019-02-05 | 德隆奇电器单股东有限责任公司 | Water boiler |
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Application publication date: 20141022 |