CN109802315B - Waterproof and antirust distribution box - Google Patents
Waterproof and antirust distribution box Download PDFInfo
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Abstract
The invention provides a waterproof and antirust distribution box, which belongs to the technical field of distribution boxes and comprises a box body and a box door which are matched with each other; the box door comprises an outer box door and an inner box door; the box body is formed by enclosing an upper box surface, a lower box surface, a first side box surface, a second side box surface and a rear box surface; the inner box door is hinged with one side of the first side box surface, and the outer box door is hinged with one side of the second side box surface; and planes are formed among the outer box door, the upper box surface, the lower box surface, the first side box surface and the second side box surface, and insulating paint is coated on the surfaces of the box body and the inner box door. The invention can effectively prevent rainwater from entering the distribution box along the gap between the box door and the box body, and the insulating paint coated on the surface of the distribution box is waterproof and corrosion-resistant, shows good comprehensive performance after long-term sunshine and rainwater erosion, and has good protection effect.
Description
Technical Field
The invention relates to the technical field of distribution boxes, in particular to a waterproof and antirust distribution box.
Background
The distribution box becomes one of necessary circuit safety protection products in home, industry, commercial decoration and the like, and a low-voltage distribution device is formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. The integrated comprehensive distribution box appearing on fields and data mainly comprises a cabinet body, and a main switch, a wiring terminal, an ammeter, a voltmeter and a capacitor which are arranged in the cabinet body. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state. It is commonly used in various power generation, distribution and transformation substations. The block terminal generally can be at the outer surface spraying one deck protective paint, sets up for a long time outdoors, receives the wind to blow the sun and hit with rain, and the lacquer layer on surface drops very easily, rusts, corrodes, influences beautifully. And meet rainy day, the rainwater enters into the block terminal the inside very easily, influences the life of components and parts, brings the potential safety hazard.
The patent with the publication number of CN207282979U discloses a double-deck protection block terminal, including outer box and interior box, interior box is established in the inside of outer box, outer box is made by the alloy and is formed, interior box is made by transparent insulating material and forms, be equipped with recess and the electric wire holding tank that is used for installing each consumer on the inner wall of interior box, the outside of interior box is equipped with the touch panel who is used for controlling in the box respectively with consumer operating condition, touch panel and the interior control panel who respectively uses the consumer in the box are connected. Compared with the prior art, this utility model provides a double-deck protection block terminal has double-deck protection architecture, the practicality is stronger, the higher beneficial effect of security. However, the double-layer structure of the distribution box solves the problem of preventing water seepage of the distribution box caused by the moist ground or the rising of the rain water level, and cannot solve the problem that rainwater enters the box body along the box door.
The patent document with the publication number of CN105907244A discloses a special high-strength wear-resistant water-based epoxy paint and a preparation method thereof, wherein the water-based epoxy paint comprises a component A and a component B, the component A comprises 80-90 parts by mass of water-based epoxy resin, 2-4 parts by mass of modified compatibilization resin and 5-15 parts by mass of active diluent, and the component B comprises 40-45 parts by mass of water-based amine curing agent, 8-10 parts by mass of tungsten carbide, 4-5 parts by mass of spodumene, 3-5 parts by mass of functional resin, 3-18 parts by mass of pigment, 10-25 parts by mass of filler, 0.1-0.5 part by mass of defoaming agent, 0.1-0.3 part by mass of wetting and leveling agent and 20-30 parts by mass of water. A coating film formed by mixing the component A and the component B according to a certain proportion of the water-based epoxy paint has a proper working life and good application property, but is used outdoors for a long time, and is corroded by sunlight and rainwater, so that the surface of the coating film is easy to lose color, bubble, wrinkle and the like, the protection function is lost, and the effect is not ideal.
Disclosure of Invention
In view of the above, the invention provides a waterproof and antirust distribution box, which can effectively prevent rainwater from entering the distribution box along a gap between a box door and a box body, and insulating paint coated on the surface of the distribution box is waterproof and corrosion-resistant, shows good comprehensive performance after long-term sunshine and rainwater erosion, and has a good protection effect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a waterproof and antirust distribution box comprises a box body and a box door which are matched with each other; the box door comprises an outer box door and an inner box door; the box body is formed by enclosing an upper box surface, a lower box surface, a first side box surface, a second side box surface and a rear box surface; the inner box door is hinged with one side of the first side box surface, and the outer box door is hinged with one side of the second side box surface; and planes are formed among the outer box door, the upper box surface, the lower box surface, the first side box surface and the second side box surface, and insulating paint is coated on the surfaces of the box body and the inner box door.
Further, the insulating paint is prepared from the following raw materials in parts by weight: 65-75 parts of epoxy resin, 22-30 parts of polyamide, 12-18 parts of polyvinylidene fluoride, 5-10 parts of a waterproof agent, 6-11 parts of a corrosion resistant agent, 4-8 parts of a flame retardant, 2-3 parts of an ultraviolet absorbent, 10-15 parts of a nano oxide, 1.5-3 parts of a corrosion inhibitor and 33-40 parts of water.
Further, the waterproof agent is triethoxysilane or trimethoxysilane.
Further, the corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.3-0.6: 1.
Further, the flame retardant is diammonium phosphate or antimony trioxide.
Further, the ultraviolet absorbent is UV-328 or UV-329.
Further, the nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of nano calcium oxide: nano silicon dioxide: the nano titanium dioxide is 1:2-3: 0.4-0.7.
Further, the corrosion inhibitor is benzotriazole or sodium mercaptobenzothiazole.
The beneficial effects of the invention are:
the invention comprises a box body and a box door which are matched with each other; the box door comprises an outer box door and an inner box door; the box body is formed by enclosing an upper box surface, a lower box surface, a first side box surface, a second side box surface and a rear box surface; the inner box door is hinged with one side of the first side box surface, so that the inner box door can be opened and closed. The outer box door is hinged with one side of the second side box surface, so that the opening and closing of the outer box door are realized. A plane is formed between the outer box door and the upper box surface, between the outer box door and the lower box surface, between the outer box door and the first side box surface, between the outer box door and the second side box surface. The outer box door is arranged outside, and the inner box door is arranged inside. The setting is in outdoor block terminal, and generally only a chamber door, the rainwater enters into the inside of block terminal along the gap between chamber door and the box, influences the life of the inside components and parts of block terminal, causes the incident easily. The invention is designed into two box doors, namely an inner box door and an outer box door, thereby realizing double protection. When the block terminal was settled when meetting the rainwater outdoors, the rainwater flowed down along the gap between outer chamber door and the box, and can not influence interior chamber door and the inside components and parts of box, has effectively reduced the potential safety hazard, prolongs the life of components and parts. The surfaces of the box body and the inner box door are coated with insulating paint, so that the box has excellent adhesive force, water resistance and corrosion resistance, and protects the distribution box.
The insulating paint takes the epoxy resin composite polyamide as a main material, and the epoxy resin has excellent adhesive force, wear resistance, impact resistance and water resistance, but has relatively poor weather resistance and difficult maintenance of luster after being exposed to the sun for a long time, so that the ultraviolet absorbent UV-328 or UV-329 is added in the insulating paint to absorb the ultraviolet part in the sun, prevent the damage of harmful ultraviolet light to the color of a reflecting material, and be beneficial to the long-term maintenance of the color of the insulating paint. The polyamide is taken as a curing agent, so that the insulation and flame retardant properties are good. The polyvinylidene fluoride has excellent chemical corrosion resistance, excellent high temperature color change resistance, oxidation resistance, ultraviolet ray resistance and high dielectric strength.
The waterproof agent triethoxy silane or trimethoxy silane can penetrate into pores in the material to be crosslinked into a net structure, so that the water repellent and waterproof effects are enhanced. The flame retardant diammonium phosphate or antimony trioxide can form a protective film for isolating air on the surface of the material, and the combustion temperature is reduced through the internal endothermic reaction, so that the flame retardant effect is achieved. The corrosion-resistant agent polyaspartic acid and the fly ash can be filled among particles of the nano oxide, so that the compactness of the structure is enhanced, the pores among the particles are reduced, the channels of capillary pores in the material are filled, and the adhesion, the corrosion resistance and the durability of the material are improved. The nanometer oxide nanometer calcium oxide, nanometer silicon dioxide and nanometer titanium dioxide improve the mechanical property and the ageing resistance of the material. The molecules of the corrosion inhibitor benzotriazole or sodium mercaptobenzothiazole are directionally arranged on the surface of the metal to form a hydrophobic film to isolate water molecules from contacting the surface of the metal, thereby playing the roles of corrosion inhibition and rust prevention.
The invention can effectively prevent rainwater from entering the distribution box along the gap between the box door and the box body, thereby influencing the service life of components in the distribution box and causing safety accidents. The insulating paint coated on the surface of the distribution box is waterproof and corrosion-resistant, shows good comprehensive performance after long-term sunshine and rain erosion, and has a good protection effect. The nano oxide is modified by the coupling agent and the surfactant, so that the lipophilicity and the surface activity of the nano particles are improved, the number of hydroxyl groups on the surface of the oxide is reduced, the hydrogen bonding action among particles is weakened, the phenomenon of particle agglomeration is reduced, the nano oxide is easier to disperse in an organic matter, the compatibility among molecules is enhanced, a good interface phenomenon is shown, and the mechanical property of the material is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a waterproof power distribution cabinet according to embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
TABLE 1 examples 1-6 parts by weight of each raw material (parts)
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Epoxy resin | 65 | 68 | 70 | 72 | 73 | 75 |
| Polyamide | 22 | 24 | 25 | 27 | 28 | 30 |
| Polyvinylidene fluoride | 12 | 13 | 14 | 15 | 16 | 18 |
| Water- |
5 | 6 | 7 | 8 | 9 | 10 |
| Corrosion- |
6 | 7 | 8 | 9 | 10 | 11 |
| Flame retardant | 4 | 5 | 6 | 6.5 | 7 | 8 |
| Ultraviolet absorber | 2 | 2.2 | 2.4 | 2.6 | 2.8 | 3 |
| Nano oxide | 10 | 11 | 12 | 13 | 14 | 15 |
| Corrosion inhibitor | 1.5 | 1.8 | 2 | 2.3 | 2.7 | 3 |
| Water (W) | 33 | 34 | 35 | 36 | 38 | 40 |
Example 1
As shown in fig. 1, this embodiment provides a cabinet including a cabinet 3 and a door which are fitted; the box door comprises an outer box door 4 and an inner box door 1; the box body 3 is formed by enclosing an upper box surface, a lower box surface, a first side box surface, a second side box surface and a rear box surface; the inner box door 1 is hinged with one side of the first side box surface, and the outer box door 4 is hinged with one side of the second side box surface; and a plane is formed between the outer box door 4 and the upper box surface, the lower box surface, the first side box surface and the second side box surface. And insulating paint is coated on the surfaces of the box body 3 and the inner box door 1.
The outer box door 4 and the inner box door 1 are both provided with a lock catch 5.
The outer box door 4 is made of transparent materials.
And the inner box door 1 is provided with a transparent observation window 2.
Wherein, the outer box door 4 is arranged outside, and the inner box door 1 is arranged inside. Interior chamber door 1 and first side chamber door are connected through hinge between, and through hinge between outer case door 4 and the second side case face, interior chamber door 1 and box 3 all make with the metal material, and the protective paint is established to the surface coating, and transparent observation window 2 and outer case door 4 adopt transparent organic glass to make. The lower part of the box body 3 is provided with a drawer 6, and tools such as a screwdriver, a wrench and the like are placed in the drawer 6, so that the maintenance and the use are convenient. The drawer 6 is provided with a lock catch. The insulating paint is prepared from the raw materials in parts by weight shown in Table 1.
Wherein the waterproof agent is triethoxysilane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.3: 1.
The flame retardant is diammonium phosphate.
The ultraviolet absorbent is UV-328.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1:2: 0.4.
The corrosion inhibitor is benzotriazole.
Example 2
This example provides a waterproof and antirust distribution box, which is different from example 1 in that the insulating paint in this example is prepared from the raw materials in the parts by weight shown in table 1.
Wherein the waterproof agent is trimethoxy silane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the fly ash is 0.4: 1.
The flame retardant is antimony trioxide.
The ultraviolet absorbent is UV-329.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1:2.5: 0.5.
The corrosion inhibitor is sodium mercaptobenzothiazole.
Example 3
This example provides a waterproof and antirust distribution box, which is different from example 1 in that the insulating paint in this example is prepared from the raw materials in the parts by weight shown in table 1.
Wherein the waterproof agent is triethoxysilane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.5: 1.
The flame retardant is diammonium phosphate.
The ultraviolet absorbent is UV-329.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1:2.8: 0.6.
The corrosion inhibitor is sodium mercaptobenzothiazole.
Example 4
This example provides a waterproof and antirust distribution box, which is different from example 1 in that the insulating paint in this example is prepared from the raw materials in the parts by weight shown in table 1.
Wherein the waterproof agent is trimethoxy silane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.6: 1.
The flame retardant is antimony trioxide.
The ultraviolet absorbent is UV-328.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1: 3: 0.7.
The corrosion inhibitor is sodium mercaptobenzothiazole.
Example 5
This example provides a waterproof and antirust distribution box, which is different from example 1 in that the insulating paint in this example is prepared from the raw materials in the parts by weight shown in table 1.
Wherein the waterproof agent is trimethoxy silane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.5: 1.
The flame retardant is antimony trioxide.
The ultraviolet absorbent is UV-328.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1:2.6: 0.6.
The corrosion inhibitor is sodium mercaptobenzothiazole.
Example 6
This example provides a waterproof and antirust distribution box, which is different from example 1 in that the insulating paint in this example is prepared from the raw materials in the parts by weight shown in table 1.
Wherein the waterproof agent is triethoxysilane.
The corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the fly ash is 0.4: 1.
The flame retardant is antimony trioxide.
The ultraviolet absorbent is UV-329.
The nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the ratio of the nano titanium dioxide is 1: 3: 0.4.
The corrosion inhibitor is benzotriazole.
Example 7
The embodiment provides a waterproof and antirust distribution box, which is different from embodiment 1 in that the nano oxide is a modified nano oxide, and the method comprises the following steps: and (2) drying 10 parts by weight of nano oxide in a vacuum drying oven at 80 ℃ for 8 hours, mixing with 25 parts by weight of diethyl ether, adding 1.2 parts by weight of monoalkoxy titanate coupling agent and 0.8 part by weight of sodium dodecyl sulfate, stirring at normal temperature at the rotating speed of 800r/min for 10 minutes, carrying out ball milling for 6 hours, and carrying out spray granulation to obtain the surface-modified nano oxide.
Example 8
The embodiment provides a waterproof and antirust distribution box, which is different from embodiment 1 in that the nano oxide is a modified nano oxide, and the method comprises the following steps: and (2) drying 10 parts by weight of nano oxide in a vacuum drying oven at 80 ℃ for 8 hours, mixing with 25 parts by weight of diethyl ether, adding 1.1 parts by weight of monoalkoxy titanate coupling agent and 0.9 part by weight of sodium dodecyl sulfate, stirring at the normal temperature at the rotating speed of 800r/min for 10 minutes, ball-milling for 6 hours, and carrying out spray granulation to obtain the surface-modified nano oxide.
In examples 7 and 8, the nano-oxide was modified with monoalkoxy titanate coupling agent and sodium dodecyl sulfate to improve lipophilicity and surface activity of the nanoparticles, make them more easily dispersed in organic substances, enhance compatibility between molecules, show good interfacial phenomena, and improve mechanical properties of the materials.
In embodiments 1 to 8 of the present invention, a method for preparing an insulating varnish includes the steps of:
s1: mixing and stirring epoxy resin, a waterproof agent, an anticorrosive agent, a flame retardant, an ultraviolet absorbent, a nano oxide, a corrosion inhibitor and water at the rotating speed of 400r/min for 20min to obtain a first mixture;
s2: placing the mixture I obtained in the step S1 in a ball mill for ball milling for 12h to obtain a mixture II;
s3: adding polyamide and polyvinylidene fluoride into the mixture II obtained in the step S2, and stirring for 30min at the rotating speed of 300 r/min to obtain a target product;
s4: and (5) oscillating the target product obtained in the step S3 in a bottle shaking machine for 10 hours, wherein the amplitude is 50mm, and the rotating speed is 100 r/min.
Comparative example 1
This comparative example provides an insulating varnish, which differs from example 1 in that: the comparative example lacks an ultraviolet absorber.
Comparative example 2
This comparative example provides an insulating varnish, which differs from example 1 in that: corrosion and corrosion inhibitors were absent from this comparative example.
Comparative example 3
This comparative example provides an insulating varnish, which differs from example 1 in that: the comparative example lacks a water repellent agent.
Comparative example 4
This comparative example provides an insulating varnish, which differs from example 1 in that: the method for preparing the enamel described in this comparative example lacks step S4.
Test method
Water resistance testing was performed according to GB/T1733-93 method B.
The adhesion test was performed according to GB 1720-79 (89).
Chemical resistance tests were performed according to GB1763-89(79) method B.
Impact resistance testing was performed in accordance with GB/T1732-93.
The test results are shown in Table 2.
Table 2 test results of the reflecting materials of examples 1 to 8 and comparative examples 1 to 4
| Water resistance | Adhesion force | Chemical resistance | Impact resistance Kg.cm | |
| Example 1 | Qualified | First stage | Qualified | 52 |
| Example 2 | Qualified | First stage | Qualified | 53 |
| Example 3 | Qualified | First stage | Qualified | 53 |
| Example 4 | Qualified | First level | Qualified | 55 |
| Example 5 | Qualified | First stage | Qualified | 58 |
| Example 6 | Qualified | First level | Qualified | 57 |
| Example 7 | Qualified | First stage | Qualified | 61 |
| Example 8 | Qualified | First stage | Qualified | 61 |
| Comparative example 1 | Fail to be qualified | First stage | Fail to be qualified | 48 |
| Comparative example 2 | Qualified | Three-stage | Fail to be qualified | 47 |
| Comparative example 3 | Fail to be qualified | Second stage | Fail to be qualified | 49 |
| Comparative example 4 | Fail to be qualified | Second stage | Fail to be qualified | 45 |
As can be seen from the combination of Table 2, the test results show that the compositions of examples 1 to 8 have no phenomena of light loss, discoloration, bubbling, wrinkling, shedding, rusting and the like, show excellent water resistance and chemical resistance, have good impact resistance which is higher than 52Kg.cm, and show that the compositions of the invention are reasonable and the process adaptability is good. Comparative example 1 lacks the ultraviolet absorbent, the material surface appears a large amount of light loss, discoloration; comparative example 2 lacks corrosion resistant agent and corrosion inhibitor, comparative example 3 lacks waterproofing agent, the surface of the paint film has a large amount of spots and bubbles, and a small amount of shedding and rusting phenomena; comparative example 4 does not vibrate in a bottle shaking machine, which is not beneficial to the uniform distribution of each component of the material, and the surface of the paint film has a large amount of wrinkling and bubbling and a small amount of shedding. Examples 7 and 8 modify the nano-oxide to improve the lipophilicity and surface activity of the nano-particles, make the nano-particles more easily dispersed in organic substances, enhance the compatibility between molecules, show a good interface phenomenon, improve the mechanical properties of the material, and optimize the impact resistance.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a waterproof rust-resistant block terminal which characterized in that: comprises a box body and a box door which are matched with each other; the box door comprises an outer box door and an inner box door; the box body is formed by enclosing an upper box surface, a lower box surface, a first side box surface, a second side box surface and a rear box surface; the inner box door is hinged with one side of the first side box surface, and the outer box door is hinged with one side of the second side box surface; a plane is formed among the outer box door, the upper box surface, the lower box surface, the first side box surface and the second side box surface, and insulating paint is coated on the surfaces of the box body and the inner box door;
the insulating paint is prepared from the following raw materials in parts by weight: 65-75 parts of epoxy resin, 22-30 parts of polyamide, 12-18 parts of polyvinylidene fluoride, 5-10 parts of a waterproof agent, 6-11 parts of a corrosion resistant agent, 4-8 parts of a flame retardant, 2-3 parts of an ultraviolet absorbent, 10-15 parts of a nano oxide, 1.5-3 parts of a corrosion inhibitor and 33-40 parts of water.
2. The waterproof and rustproof power distribution box of claim 1, wherein: the waterproof agent is triethoxysilane or trimethoxy silane.
3. The waterproof and rustproof power distribution box of claim 1, wherein: the corrosion-resistant agent is a mixture of polyaspartic acid and fly ash, and the weight ratio of polyaspartic acid: the ratio of the fly ash to the fly ash is 0.3-0.6: 1.
4. The waterproof and rustproof power distribution box of claim 1, wherein: the flame retardant is diammonium phosphate or antimony trioxide.
5. The waterproof and rustproof power distribution box of claim 1, wherein: the ultraviolet absorbent is UV-328 or UV-329.
6. The waterproof and rustproof power distribution box of claim 1, wherein: the nano oxide is a mixture of nano calcium oxide, nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano calcium oxide to the nano titanium dioxide is as follows: nano silicon dioxide: the nano titanium dioxide is 1:2-3: 0.4-0.7.
7. The waterproof and rustproof power distribution box of claim 1, wherein: the corrosion inhibitor is benzotriazole or sodium mercaptobenzothiazole.
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| CN204440207U (en) * | 2015-01-26 | 2015-07-01 | 广东申菱空调设备有限公司 | A kind of wide operating mode type electric cabinet |
| CN106832749A (en) * | 2015-12-04 | 2017-06-13 | 余姚市捷飞电器有限公司 | A kind of durable electric wire insulation layer |
| CN206611055U (en) * | 2017-03-29 | 2017-11-03 | 杨雪飞 | A kind of anti-lightning strike moistureproof distribution box |
| CN206727471U (en) * | 2017-05-19 | 2017-12-08 | 张少杰 | A kind of outdoor distributing box |
| CN206727457U (en) * | 2017-05-26 | 2017-12-08 | 安徽星博电气科技有限公司 | A kind of Novel outdoor regulator cubicle |
| CN107857976A (en) * | 2017-11-30 | 2018-03-30 | 国网河南省电力公司南阳供电公司 | A kind of electric power infrastructure erosion resisting insulation material |
| CN208548634U (en) * | 2018-08-15 | 2019-02-26 | 东莞市立城机电设备有限公司 | A kind of outdoor rainproof type distribution box |
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| CN109802315A (en) | 2019-05-24 |
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