CN115093160A - Antirust environment-friendly NB water meter shell structure - Google Patents
Antirust environment-friendly NB water meter shell structure Download PDFInfo
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- CN115093160A CN115093160A CN202210634475.0A CN202210634475A CN115093160A CN 115093160 A CN115093160 A CN 115093160A CN 202210634475 A CN202210634475 A CN 202210634475A CN 115093160 A CN115093160 A CN 115093160A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 32
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 240000006394 Sorghum bicolor Species 0.000 claims description 8
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims description 8
- 239000010438 granite Substances 0.000 claims description 8
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 8
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000005300 metallic glass Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- -1 sodium fluorosilicate Chemical compound 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000945 filler Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/006—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus characterised by the use of a particular material, e.g. anti-corrosive material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses an antirust environment-friendly NB water meter shell structure, which comprises a water meter shell body, wherein the water meter shell body is formed by demolding a high-strength mixed material after being cast by a mold, a plurality of concave attachment hole structures are uniformly arranged on the inner wall of the water meter shell body, a hard filling layer is sprayed on the inner wall of the water meter shell body, and an amorphous alloy coating structure is sprayed on the outer part of the hard filling layer.
Description
Technical Field
The invention relates to the technical field of water meter shell structures, in particular to an antirust environment-friendly NB water meter shell structure.
Background
The NB water meter is used as an intelligent water meter, the manufacturing requirement of the water meter shell is higher than that of the common water meter, and the water meter shell at present mainly comprises engineering plastics, nodular cast iron, stainless steel castings, cast lead brass and cast aluminum alloy; wherein, engineering plastics key feature: the manufacture is convenient; no toxicity and pollution; corrosion resistance, no rust, no scaling, sanitation and environmental protection; the weight is light. There are problems: the mechanical strength is low, the rigidity is insufficient, and the cold brittleness phenomenon exists; easy aging, creep deformation, etc. The nodular cast iron has the main characteristics that: high strength and toughness, excellent wear resistance, good machining performance and the like. There are problems: compared with gray cast iron, the manufacturing process difficulty and the cost are increased; also, the rust is easy to generate and secondary pollution can be caused. The stainless steel casting has the main characteristics that: acid and alkali resistance, no secondary pollution; under the conditions of high and low temperature, no corrosive substance and exudate are generated, and the method is sanitary and environment-friendly; the mechanical property is good. There are problems: the processing is not easy, and the manufacturing cost is high; at present, mass production capacity is not formed. The cast lead brass has the main characteristics that: the mechanical property is good; the manufacturing process is simple. There are problems: lead precipitation exceeds standard and verdigris is generated easily, thus harming human health; copper resource shortage in China; high energy consumption is needed in smelting; low lead copper has high manufacturing cost and poor cutting performance. The cast aluminum alloy has the main characteristics that: the raw materials are rich, and the cost is low; the mechanical property is good; the performance-price ratio is high, the production cost is low, and the problems exist: under the action of impact force, surface hardening layers of the screw threads and other parts are easy to peel off and damage; whether the precipitates after the surface oxidation are harmful to the health of human bodies is to be evaluated; methods for predicting and evaluating the corrosion tendency of the watch case are under study. Therefore, based on the above materials, if a new material is found to achieve the purposes of rust prevention and environmental protection, it is a problem to be solved by water meter manufacturing companies.
Disclosure of Invention
Aiming at the problems, the invention provides an antirust environment-friendly NB water meter shell structure which is simple in manufacturing process, environment-friendly and durable in material and has better wear-resistant, corrosion-resistant and antirust performances.
In order to achieve the technical purpose, the invention adopts an antirust environment-friendly NB water meter shell structure, which comprises a water meter shell body, wherein the water meter shell body is formed by casting and demolding a high-strength mixed material through a mold, a plurality of concave attachment hole structures are uniformly arranged on the inner wall of the water meter shell body, a hard filling layer is sprayed on the inner wall of the water meter shell body, and an amorphous alloy coating structure is sprayed on the outer part of the hard filling layer.
Preferably, the high-strength mixed material consists of granite powder, sea shell powder, sorghum shell powder, polyurethane, sodium fluosilicate and magnesium sulfate powder; the raw materials are compatible according to the parts by weight as follows: 20-30 parts of granite powder, 18-25 parts of marine shell powder, 10-15 parts of sorghum shell powder, 4-8 parts of polyurethane, 2-3 parts of sodium fluosilicate and 2-3 parts of magnesium sulfate powder.
In a further preferred embodiment of the present invention, the hard filler layer is a ceramic filler layer, and the ceramic filler layer is made of a mixture of alumina, silica, calcium oxide, polyvinyl alcohol, and dimethylacetamide.
As a further preferred aspect of the present invention, the amorphous alloy coating structure is an iron-based amorphous alloy.
The NB water meter shell is formed by casting and demoulding a high-strength mixed material through a mould, and meanwhile, the inner wall of the water meter shell body is sprayed with a hard filling layer, and the outer part of the hard filling layer is sprayed with an amorphous alloy coating structure, so that the NB water meter shell structure has the characteristics of simple manufacturing process, environment-friendly and durable material, and better wear resistance, corrosion resistance and rust resistance.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
wherein, 1, the water meter shell body; 2. a concave attachment hole structure; 3. a hard filler layer; 4. amorphous alloy coating structure.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As can be seen from fig. 1, the rust-proof and environment-friendly NB water meter case structure comprises a water meter case body 1, wherein the water meter case body 1 is formed by demolding a high-strength mixed material after being cast by a mold, a plurality of concave attachment hole structures 2 are uniformly arranged on the inner wall of the water meter case body 1, a hard filling layer 3 is sprayed on the inner wall of the water meter case body 1, and an amorphous alloy coating structure 4 is sprayed on the outer portion of the hard filling layer 3.
In the present invention, the preferred high-strength mixing material consists of granite powder, sea shell powder, sorghum shell powder, polyurethane, sodium fluorosilicate, magnesium sulfate powder.
The specific examples of the raw materials in parts by weight are as follows:
example one
20 parts of granite powder, 18 parts of sea shell powder, 10 parts of sorghum shell powder, 4 parts of polyurethane, 2 parts of sodium fluosilicate and 2 parts of magnesium sulfate powder.
Example two
30 parts of granite powder, 25 parts of sea shell powder, 15 parts of sorghum shell powder, 8 parts of polyurethane, 3 parts of sodium fluosilicate and 3 parts of magnesium sulfate powder.
EXAMPLE III
25 parts of granite powder, 21 parts of sea shell powder, 12 parts of sorghum shell powder, 6 parts of polyurethane, 2.5 parts of sodium fluosilicate and 2.5 parts of magnesium sulfate powder.
In the present invention, the hard filler layer 3 is preferably a ceramic filler layer made of a mixture of alumina, silica, calcium oxide, polyvinyl alcohol, and dimethylacetamide. When the hard filling layer 3 is filled, the concave attachment hole structure 2 is filled together, so that the hard filling layer 3 has better adhesion.
In the present invention, the preferred amorphous alloy coating structure 4 is an iron-based amorphous alloy. The iron-based amorphous alloy is also called metallic glass, is a novel material which is published in the 70 s of the 20 th century, and is characterized in that molten steel is formed into a thin strip with the thickness of 30 microns in one step by utilizing a quenching technology, the obtained solid alloy (thin strip) has a crystal structure which is different from the crystal structure of the cold-rolled silicon steel material in which atoms are regularly arranged, and the alloy has a narrow B-H loop and has the characteristics of high magnetic permeability and low loss because the atoms of the alloy are in an amorphous structure which is randomly arranged; meanwhile, the irregular atomic arrangement of the amorphous alloy limits the free passage of electrons, so that the resistivity is 2-3 times higher than that of the crystalline alloy, and the eddy current loss is reduced. Compared with the traditional transformer adopting silicon steel sheets, the no-load loss of the transformer core prepared by taking the amorphous alloy as the raw material is reduced by about 75 percent, so that the amorphous alloy transformer has very remarkable energy-saving and environment-friendly effects, and when the amorphous alloy transformer core is used for an oil immersed transformer, various harmful gases can be obviously reduced. Therefore, more and more manufacturers use amorphous alloys as the raw material of transformer cores.
The NB water meter shell is formed by casting and demoulding a high-strength mixed material through a mould, and meanwhile, the inner wall of the water meter shell body is sprayed with the hard filling layer 3, and the outer part of the hard filling layer is sprayed with the amorphous alloy coating structure 4, so that the NB water meter shell structure has the characteristics of simple manufacturing process, environment-friendly and durable material, and better wear resistance, corrosion resistance and rust resistance.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a NB water gauge watchcase structure of rust-resistant environmental protection, includes water gauge watchcase body, its characterized in that, water gauge watchcase body is formed by the drawing of patterns behind the mould casting of high strength combined material, the inner wall of water gauge watchcase body evenly is provided with a plurality of concave type and adheres to the pore structure, and the inner wall spraying of water gauge watchcase body has one deck stereoplasm filling layer, the outside spraying of stereoplasm filling layer has one deck metallic glass coating structure.
2. The rust-proof environment-friendly NB water meter shell structure as claimed in claim 1, wherein said high-strength mixing material is composed of granite powder, sea shell powder, sorghum shell powder, polyurethane, sodium fluorosilicate, magnesium sulfate powder; the raw materials are as follows according to the parts by weight: 20-30 parts of granite powder, 18-25 parts of marine shell powder, 10-15 parts of sorghum shell powder, 4-8 parts of polyurethane, 2-3 parts of sodium fluosilicate and 2-3 parts of magnesium sulfate powder.
3. The rust-proof environment-friendly NB water meter case structure of claim 1, wherein the hard filling layer is a ceramic filling layer, and the ceramic filling layer is made of a mixture of alumina, silica, calcium oxide, polyvinyl alcohol and dimethylacetamide.
4. The watch case structure of an NB water meter with rust protection and environmental protection as claimed in claim 1, wherein the amorphous alloy coating structure is iron-based amorphous alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634475.0A CN115093160A (en) | 2022-06-07 | 2022-06-07 | Antirust environment-friendly NB water meter shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634475.0A CN115093160A (en) | 2022-06-07 | 2022-06-07 | Antirust environment-friendly NB water meter shell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115093160A true CN115093160A (en) | 2022-09-23 |
Family
ID=83288807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210634475.0A Pending CN115093160A (en) | 2022-06-07 | 2022-06-07 | Antirust environment-friendly NB water meter shell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115093160A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535129A (en) * | 2014-12-25 | 2015-04-22 | 宁波市精诚科技有限公司 | Water meter provided with waterproof module box |
| CN204451364U (en) * | 2015-01-19 | 2015-07-08 | 任爱 | A kind of abrasion-proof corrosion-proof corrosion material containing iron-based amorphous coating |
| CN106600834A (en) * | 2016-12-19 | 2017-04-26 | 张铁骑 | Intelligent water meter waterproof shell with twice-injection-molding structure and forming process thereof |
| CN208254576U (en) * | 2018-06-11 | 2018-12-18 | 临沂瑞新水表有限公司 | A kind of anti-corrosion used at ultra-low temperature water meter case |
| CN110157141A (en) * | 2019-06-04 | 2019-08-23 | 山东天汇仪表有限公司 | A kind of intellectual water meter shell ABS composite material and preparation method thereof |
| CN210689749U (en) * | 2019-09-30 | 2020-06-05 | 刘伟武 | Assembled water meter shell |
| KR102176781B1 (en) * | 2020-05-18 | 2020-11-09 | 부경수도 주식회사 | Hybrid water meter and meter reading system using the same |
| CN214382916U (en) * | 2020-08-21 | 2021-10-12 | 苏州善鑫国际贸易有限公司 | Weight-reducing water meter shell and core |
-
2022
- 2022-06-07 CN CN202210634475.0A patent/CN115093160A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535129A (en) * | 2014-12-25 | 2015-04-22 | 宁波市精诚科技有限公司 | Water meter provided with waterproof module box |
| CN204451364U (en) * | 2015-01-19 | 2015-07-08 | 任爱 | A kind of abrasion-proof corrosion-proof corrosion material containing iron-based amorphous coating |
| CN106600834A (en) * | 2016-12-19 | 2017-04-26 | 张铁骑 | Intelligent water meter waterproof shell with twice-injection-molding structure and forming process thereof |
| CN208254576U (en) * | 2018-06-11 | 2018-12-18 | 临沂瑞新水表有限公司 | A kind of anti-corrosion used at ultra-low temperature water meter case |
| CN110157141A (en) * | 2019-06-04 | 2019-08-23 | 山东天汇仪表有限公司 | A kind of intellectual water meter shell ABS composite material and preparation method thereof |
| CN210689749U (en) * | 2019-09-30 | 2020-06-05 | 刘伟武 | Assembled water meter shell |
| KR102176781B1 (en) * | 2020-05-18 | 2020-11-09 | 부경수도 주식회사 | Hybrid water meter and meter reading system using the same |
| CN214382916U (en) * | 2020-08-21 | 2021-10-12 | 苏州善鑫国际贸易有限公司 | Weight-reducing water meter shell and core |
Non-Patent Citations (1)
| Title |
|---|
| 邹玉清等: "《产品设计材料与工艺》", 江苏凤凰美术出版社, pages: 40 - 42 * |
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Application publication date: 20220923 |