CN103924752B - Nano wearproof pottery composite protective construction method - Google Patents

Abstract

The invention discloses a construction method of nano-wear-resistant ceramic composite protection, which includes cleaning and welding anchor nets, mixing and stirring of wear-resistant materials, and construction steps. The ceramic paint is pressed tightly under the expanded metal for a dense application. The invention has the advantages of convenient construction, easy maintenance, high cost performance, durability, energy saving and environmental protection.

Description

Nano wear-resistant ceramic composite protective construction method

technical field

The invention relates to a nanometer wear-resistant ceramic compound protective construction method.

Background technique

Cement, national defense, steel, thermal power, petroleum, chemical and other industries involve various high and low temperature equipment. The treatment of the key wear-resistant treatment layer and other heavy wear parts of these equipment is related to the safe operation of the equipment, and even determines the service life of the equipment. . Therefore, it is necessary to adopt appropriate protective measures to deal with it.

At present, many important components in the power plant, such as boiler four tubes, fan blades, pulverized coal pipe elbows, steam turbine final stage blades, etc., have greatly shortened their service life due to wear, high temperature corrosion, and water erosion, which seriously affects the unit. Safe operation directly affects the economic benefits of power production.

Most of the domestic solutions to such problems are regular replacement of damaged parts, which requires a long construction period and a large investment. With the development of new materials for industrial use, special high-performance materials have become a new hotspot in material science research. Compared with conventional metal materials, ceramics and cermets have extremely high temperature resistance, oxidation resistance and wear resistance. They have been widely used in western developed countries. Using them as surface protection materials can greatly prolong the service life of equipment. It is of great significance to ensure the safe and economical use of equipment.

To sum up, the existing protection methods and their problems are as follows:

(1) Wear-resistant alloy steel: It has good wear resistance, but the material strength is high, the construction is difficult, the waste is large during non-standard production, it is easy to deform during production, and it is most likely to be corroded from the weld.

(2) Stainless steel: It has corrosion resistance at low temperature, but it is not resistant to high temperature, and it is easy to be corroded and worn at high temperature.

(3) Ordinary wear-resistant materials: have certain wear resistance, relatively low cost, low strength (less than 35Pa), are prone to cracks, and cannot play a good protective role.

(4) Ceramic sheet: Good wear resistance and anti-corrosion, there are gaps, because it needs to be pasted with resin during construction, it is easy to age, easy to loose and fall off by air flow, and the service life is short.

It can be seen that the heavy wear parts of the equipment in the thermal power generation industry adopt wear-resistant ceramic sheets, wear-resistant steel and other processes, and frequent shutdowns for maintenance are required due to winnowing abrasion, impact abrasion, etc., which affects the utilization rate of the equipment.

Therefore, how to develop a protective construction method with convenient construction, easy maintenance, high cost performance, durability, energy saving and environmental protection is a new research topic.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a nano-wear-resistant ceramic composite protective construction method, which is convenient in construction, easy in maintenance, high in cost performance, durable, energy-saving and environmentally friendly.

In order to solve the above problems, the present invention adopts the following technical solutions:

The invention discloses a nano-wear-resistant ceramic composite protective construction method, which includes the following steps:

1), cleaning and welding anchoring mesh:

For the surface that needs to be constructed, first clean off the oil or small particles, and then use an angle grinder and a wire grinder to remove all the rust on the surface of the steel plate; before the construction of the material, wet the construction surface with water without leaving any water droplets or water droplets;

The steel mesh is used as the anchor mesh, and the steel mesh is made of ordinary carbon steel mesh without electroplating and painting, and the steel mesh and steel bars are fixed by spot welding; the steel bars and steel mesh are welded on the construction surface; the distance between the steel mesh and the construction surface is sufficient Let the wear-resistant material completely wrap the mesh; confirm that the steel mesh has been firmly covered on all construction surfaces;

2) Mixing and stirring of wear-resistant materials:

Pour the nano wear-resistant ceramic coating into the forced mixer, pre-mix evenly, add tap water and stir thoroughly, and stir for 3-10 minutes after adding water;

After stirring, add steel fibers into the mixer evenly and slowly according to the amount of 4-5% of the total mass of the material, and the added steel fibers cannot form lumps; after adding the steel fibers, continue stirring for 5-6 minutes;

3) Construction:

The construction begins with a small area of application. During construction, the nano-abrasion-resistant ceramic coating is tightly pressed into the steel mesh, densely applied, and a spatula or a vibrating spatula is directly used on the construction surface to make it more uniform and compact; Before the surface solidifies, reach the required thickness each time you apply it. After finishing, use a trowel to smooth the surface and sprinkle some water to moisten it;

When smearing a large area, divide it into small areas, use strip steel or angle steel to weld along the working direction, and segment the strip steel for acute angle treatment.

There are three interfaces for mixing and construction:

(1) Construction of horizontal surface:

The nano wear-resistant ceramic coating should be used within 20 minutes after stirring, that is, the nano wear-resistant ceramic coating has good viscosity and suitable fluidity, avoiding secondary water addition, so as to ensure that the strength of the nano wear-resistant ceramic coating will not be reduced ;According to the size of the working surface that needs to be applied, pour an appropriate amount of nano wear-resistant ceramic paint on the parts, and then pour it on each end with a mortar board, and apply it to the required thickness; check the thickness of the application from time to time to ensure that the thickness is accurate;

(2) Construction of vertical surfaces:

The nano-wear-resistant ceramic coating requires stirring time of more than 20 minutes, add water and stir for more than 3 minutes, until a suitable viscosity is obtained, and a "wet ball" can be formed; put the stirred nano-wear-resistant ceramic coating on the sand board, put The mortar board is placed on the surface of the anchoring net, and the mortar is pressed into the interlayer between the anchoring net and the component; while pushing the mortar board up, move the mortar board quickly from one end to the other; using this method, the nano wear-resistant ceramic coating Easier to apply, check the thickness of the material from time to time.

(3) Construction of the top surface of the head:

When the nano wear-resistant ceramic coating is used in the overhead position, add 3 minutes of stirring time to obtain a more viscous nano wear-resistant ceramic coating; place the newly stirred nano wear-resistant ceramic coating on the mortar board, and put the nano Press the wear-resistant ceramic coating into the anchoring net, move the mortar board back to the starting position, and then do repeated "zigzag" movements from one end to the other; using this method, it will be easy to press the wear-resistant nano wear-resistant ceramic coating Into the interlayer between the construction components and the anchoring mesh. When the wear-resistant nano wear-resistant ceramic coating is still "wet", ensure that the accurate construction thickness has been obtained;

When smearing, constantly check the nano wear-resistant ceramic coating to confirm that the nano wear-resistant ceramic coating is completely pressed into the back of the anchoring net; use a trowel to scrape off the material of about 10mm*10mm to expose the anchoring net, check whether there is an air pocket, if there is an air pocket , Press in more nano-wear-resistant ceramic paint behind the anchoring net when smearing; after inspection, apply nano-wear-resistant ceramic paint again on the scraped place, and smooth it with a mortar board; if the inspection finds that the air bag is leaking , then the nano wear-resistant ceramic paint that has been applied is removed from the parts, discarded and no longer used, and reapplied with new nano wear-resistant ceramic paint for construction.

The mass ratio of raw materials for preparing nano wear-resistant ceramic coatings is: 65-70 parts of 5mm-8mm fused corundum, 15-20 parts of 100nm-300nm nano-ceramic powder, 3-6 parts of aluminate cement, _2- 5 parts, 2-5 parts of active a-Al ₂ O ₃ powder, 0.2-1 part of composite high-efficiency dispersant, 1-3 parts of crystal accelerator;

Wherein, the mass ratio of raw materials for preparing nano-ceramic powder is: 9-11 parts of zirconia, 73-77 parts of aluminum oxide, 5-7 parts of magnesium oxide, 5-7 parts of zinc oxide, and 2-4 parts of cobalt oxide;

The composite high-efficiency dispersant is a sulfamic acid-based high-efficiency water reducer, and the crystal accelerator is a substance that can occur at low temperature and promote hydration reaction such as magnesium oxide and chloride.

Nano-ceramic powder is prepared by high-temperature calcining and grinding method, and nano-ceramic powder is prepared together with fused corundum, aluminate cement, SiO ₂ micropowder, active a-Al ₂ O ₃ powder, composite high-efficiency dispersant and crystal accelerator. Wear-resistant ceramic coating.

The construction temperature requirements are as follows: during the construction period, the temperature at the construction site should be controlled at 5°C-30°C. When the temperature is too low, the material itself and the construction area should be heated to above 5°C until the application of the ceramic material is completed; Construction under the sun or strong wind to prevent the surface of the material from drying out quickly and weakening the strength of the material.

When cleaning and welding the anchor net, in order to prevent deformation and dry cracking of the edge of the construction surface, a flat iron with a thickness of 5mm and a height of 20mm is welded on the edge of the construction surface, and the welding angle is perpendicular to the working surface where it is located.

Construction precautions are:

1) The nano wear-resistant ceramic coating must be tightly pressed into the bottom of the anchoring net.

2) The construction area must be cleaned up and implemented in accordance with the above.

3) When constructing on a horizontal surface, it is recommended to use a vibrating machine directly on the covering surface or trowel to make it more uniform and dense. However, the vibrating machine cannot be used in vertical or downward construction.

4) After the surface is finished, the surface must be protected immediately to prevent rapid drying. Usually, a general sprayer is used to spray the curing agent on the surface. About 0.2-0.3L of curing agent needs to be sprayed per square meter, and watering can also be used for curing. The amount of curing agent sprayed on the edge of the construction surface needs to be doubled to prevent cracks.

5) After construction, the nano-wear-resistant ceramic coating should have a curing period of 7 days as much as possible, and in principle, at least not less than 3 days. During the maintenance period, maintenance must be carried out every day.

6) During the construction and maintenance period of the nano wear-resistant ceramic coating, any impact behavior such as beating and hammering is strictly prohibited.

7) The wear-resistant nano wear-resistant ceramic coating should be completed before the initial setting, and the amount of primary mixing should be used while stirring according to the initial setting time and the materials required for construction. The wear-resistant coating that has lost workability is strictly prohibited from adding water for the second time. use again.

The invention has the advantages of convenient construction, easy maintenance, high cost performance, durability, energy saving and environmental protection.

detailed description

The mass ratio of raw materials for preparing nano wear-resistant ceramic coatings is: 65-70 parts of 5mm-8mm fused corundum, 15-20 parts of 100nm-300nm nano-ceramic powder, 3-6 parts of aluminate cement, _2- 5 parts, 2-5 parts of active a-Al ₂ O ₃ powder, 0.2-1 part of composite high-efficiency dispersant, 1-3 parts of crystal accelerator;

Wherein, the mass ratio of raw materials for preparing nano-ceramic powder is: 9-11 parts of zirconia, 73-77 parts of aluminum oxide, 5-7 parts of magnesium oxide, 5-7 parts of zinc oxide, and 2-4 parts of cobalt oxide;

The composite high-efficiency dispersant is a sulfamic acid-based high-efficiency water reducer, and the crystal accelerator is a substance that can occur at low temperature and promote hydration reaction such as magnesium oxide and chloride.

Nano-ceramic powder is prepared by high-temperature calcining and grinding method, and nano-ceramic powder is prepared together with fused corundum, aluminate cement, SiO ₂ micropowder, active a-Al ₂ O ₃ powder, composite high-efficiency dispersant and crystal accelerator. Wear-resistant ceramic coating.

1. Preparation before construction

1. Check whether the labor protection clothing of all construction workers is complete;

2. Check whether the tools and materials required for construction are in place;

3. Check whether the appropriate temperature and guarantee measures (see temperature requirements for details) are in place;

4. The person in charge of the construction party shall apply for the electrical person in charge of the project site to check our power distribution cabinet and connect the power supply;

2. Construction temperature requirements:

During the construction period, the temperature at the construction site must be controlled between 5°C and 30°C. If the temperature is too low, the material itself and the construction area must be heated to above 5°C until the ceramic material is applied. At high temperature, construction should be avoided under direct sunlight or strong wind, so as to prevent the surface of the material from drying out quickly and weakening the strength of the material.

3. Construction

3.1. Cleaning and welding anchoring mesh

For the surface that needs to be constructed, first clean off the oil or small particles, and then use an angle grinder and a wire grinder to remove the rust on the surface of the steel plate. Before the material is applied, the construction surface should be wetted with water, but no water beads or droplets should be left.

In order to prevent deformation and dry cracking of the edge of the construction surface, a flat iron with a thickness of 5mm and a height of 20mm can be welded on the edge of the construction surface, and the welding angle is perpendicular to the working surface where it is located.

Weld Φ6mm steel bars and steel mesh on the construction surface, and the welding spot spacing is 200-300mm.

Confirm that the expanded metal has been firmly covered on all construction surfaces. The role of the steel plate reinforcement mesh is to prevent the applied wear-resistant material from falling off, especially when it is applied on a vertical surface or the construction surface is facing downwards. The steel mesh needs to use ordinary carbon steel mesh without electroplating and painting.

Remarks: According to construction experience, it is recommended to use non-plated reinforcing mesh, and its reference size is 33*88mm.

In order to ensure the strongest adhesion, the reinforcing mesh should be adjusted as far as possible during installation, so that the distance between the mesh and the construction surface is sufficient for the wear-resistant material to completely wrap the mesh. The anchor net and the steel bar are fixed by spot welding, and the distance between the spot welding is generally 100-150mm.

3.2. Mixing and stirring of wear-resistant materials

Pour the nano wear-resistant ceramic coating into the forced mixer, pre-mix evenly, then slowly add clean tap water and stir thoroughly according to the appropriate ratio, and stir for 3-5 minutes after adding water. (The appearance of the abrasive will change from dry powdery to wet and sticky within 3 minutes). According to the on-site mixing situation, if the nano wear-resistant ceramic coating does not show a viscous shape suitable for construction, you can add an appropriate amount of tap water to the mixer until a suitable viscosity is obtained. Stir for at least 1 minute after each additional addition of water. The total stirring time before adding the steel fibers shall not be less than 10 minutes.

If the consistency is suitable, after stirring for 10 minutes, add steel fibers into the mixer evenly and slowly according to the amount of 4-5%, and the added steel fibers cannot form lumps. Finish adding the steel fiber and keep stirring for 5-6 minutes.

After the stirring is completed, check the workability of the nano wear-resistant ceramic coating again. If the nano wear-resistant ceramic coating can form a "wet ball", it shows that it has good workability and can be applied.

3.3. Construction

During construction, the nano wear-resistant ceramic coating must be tightly pressed into the steel mesh. Use a trowel or vibrating trowel directly on the application surface for a more even and compact finish. The construction should start with a small area and press it tightly under the steel mesh. More importantly, it must be densely applied. Before the surface solidifies, it should reach the required thickness each time it is applied. After completion, you can use a trowel Smooth its surface and sprinkle some water to moisten it if necessary.

When smearing a large area, it is necessary to divide it into small areas, and use strip steel or angle steel to weld along the working wind direction, and the section should be strip steel for acute angle treatment.

There are three interfaces for mixing and construction:

(1) Construction of horizontal surface:

It should be used within 20 minutes after stirring, that is, the nano-abrasion-resistant ceramic coating has good viscosity and suitable fluidity, and the amount of water should be controlled at the minimum standard to avoid secondary water addition to ensure the strength of the nano-abrasion-resistant ceramic coating is not lowered. According to the size of the working surface that needs to be painted, pour an appropriate amount of nano wear-resistant ceramic paint on the parts, and then pour it on each end with a mortar board, and apply it to the required thickness. Check the thickness of the application from time to time to ensure the thickness is correct.

(2) Construction of vertical surfaces:

Stirring time is required to be more than 20 minutes (depending on the weather conditions), add water and stir for more than 3 minutes until a suitable consistency is obtained (a "wet ball" can be formed). Put the stirred nano wear-resistant ceramic coating on the sand board, put the mortar board on the surface of the anchor net, and press the mortar into the interlayer between the anchor net and the components. While pushing the mortar board up, move the mortar board quickly from one end to the other. Using this method, the nano wear-resistant ceramic coating is easier to apply, and the thickness of the material should be checked from time to time.

(3) Construction of the top surface of the head:

When the nano-abrasion-resistant ceramic coating is used on the top of the head, adding 3 minutes of stirring time to obtain a more viscous nano-abrasion-resistant ceramic coating will be conducive to the construction of the top.

Place the newly stirred nano-abrasion-resistant ceramic coating on the mortar board, press the nano-abrasion-resistant ceramic coating upwards into the anchoring mesh, move the mortar board back to the starting position, and then do a repeated "this" from one end to the other glyph movement. Using this method, it will be easy to press the wear-resistant nano wear-resistant ceramic coating into the interlayer between the construction parts and the anchoring net. During the time that the wear-resistant nano wear-resistant ceramic coating is still "wet", ensure that the accurate application thickness has been obtained.

In order to ensure the engineering quality of the construction, the construction personnel must stand as close to the top of the head as possible, and bow their heads when necessary. In this way, the construction personnel have enough strength to press down and move the mortar board.

Constantly check the Aetna wear-resistant nano-abrasion-resistant ceramic coating when applying it, and confirm that the nano-abrasion-resistant ceramic coating is completely pressed into the back of the anchoring mesh. Use a trowel to scrape off the material of about 10mm*10mm to expose the anchoring mesh, and check whether there are air pockets. If there are air pockets, press more nano-wear-resistant ceramic coatings behind the anchoring mesh when applying. After the inspection, apply the nano wear-resistant ceramic coating again on the scratched place, and smooth it with a mortar board. If the inspection finds that the air bag is leaking, the applied nano-abrasion-resistant ceramic coating should be removed from the part, discarded and no longer used, and must be reapplied with a new nano-abrasion-resistant ceramic coating.

3.4. Construction precautions

3.4.1. The nano wear-resistant ceramic coating must be tightly pressed into the bottom of the anchoring net.

3.4.2 . The construction area must be cleaned up and implemented in accordance with the above.

3.4.3 When constructing on a horizontal surface, it is recommended to use a vibrating machine directly on the covering surface or a trowel to make it more uniform and compact. However, the vibrating machine cannot be used in vertical or downward construction.

3.4.4 After the surface is finished, the surface must be protected immediately to prevent rapid drying. Usually, it is enough to spray the curing agent on the surface with a general sprayer. About 0.2-0.3L of curing agent needs to be sprayed per square meter, and watering can also be used for curing. The amount of curing agent sprayed on the edge of the construction surface needs to be doubled to prevent cracks.

3.4.5 . After the construction is completed, the nano-abrasion-resistant ceramic coating should have a curing period of 7 days as far as possible, and in principle it should not be less than 3 days. During the maintenance period, maintenance must be carried out every day.

3.4.6. During the construction and maintenance period of the nano wear-resistant ceramic coating, any impact behavior such as beating and hammering is strictly prohibited.

3.4.7 The wear-resistant nano wear-resistant ceramic coating should be completed before the initial setting. The amount of primary mixing should be used while stirring according to the initial setting time and the materials required for construction. The wear-resistant coating that loses workability is strictly prohibited from adding water twice Stir again.

The mass ratio of raw materials for preparing nano wear-resistant ceramic coatings is: 65-70 parts of 5mm-8mm fused corundum, 15-20 parts of 100nm-300nm nano-ceramic powder, 3-6 parts of aluminate cement, _2- 5 parts, 2-5 parts of active a-Al ₂ O ₃ powder, 0.2-1 part of composite high-efficiency dispersant, 1-3 parts of crystal accelerator;

Wherein, the mass ratio of raw materials for preparing nano-ceramic powder is: 9-11 parts of zirconia, 73-77 parts of aluminum oxide, 5-7 parts of magnesium oxide, 5-7 parts of zinc oxide, and 2-4 parts of cobalt oxide;

The composite high-efficiency dispersant is a sulfamic acid-based high-efficiency water reducer, and the crystal accelerator is a substance that can occur at low temperatures and promote hydration reactions such as magnesium oxides and chlorides

Nano-ceramic powder is prepared by high-temperature calcining and grinding method, and nano-ceramic powder is prepared together with fused corundum, aluminate cement, SiO ₂ micropowder, active a-Al ₂ O ₃ powder, composite high-efficiency dispersant and crystal accelerator. Wear-resistant ceramic coating.

Finally, it should be noted that: obviously, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims (5)

1. a nano wearproof pottery composite protective construction method, is characterized in that, described construction method comprises the following steps:

1), cleaning and weld anchor fixed network:

To the surface needing construction, first wash greasy dirt or finely ground particle substance, then with electric angle grinder and steel-wire sanding wheel machine, the iron rust of surface of steel plate is eliminated; Before material construction, will to construct surface wet with water, the globule or water droplet can not be left;

Take expanded metal lath as anchored net, expanded metal lath adopts the ordinary carbon steel net without plating and paint, with spot welding mode fixation steel plate net and reinforcing bar; At working face welded reinforcement and expanded metal lath; Distance between expanded metal lath and working face is enough to allow high-abrasive material wrap net completely; Confirm that expanded metal lath is all firmly covered in all working face;

2), the mixing of high-abrasive material and stirring:

Nano wearproof ceramic coating is poured in forced mixer, after first premix is even, adds tap water and fully stir, after water injection stir 3-10 minute afterwards;

After stirring, according to the addition of material gross mass 4-5%, in mixer, evenly add steel fibre slowly, added steel fibre can not form bulk; Add steel fibre and Keep agitation 5-6 minute;

3), construct:

Construction is to start more among a small circle to smear, and during construction, be pressed into tightly below expanded metal lath by nano wearproof ceramic coating, densification is smeared, and directly in working face, uses spatula, makes it evenly with tight; Before surface solidification, when smearing, reach required thickness at every turn, after completion, with trowel by floating for its surface, spill a little water-wet;

When smearing a large-area region, be divided into zonule;

Three kinds of interfaces are divided to stir and construction:

(1), the construction of horizontal surface:

Nano wearproof ceramic coating used after stirring and terminating in 20 minutes, and namely nano wearproof ceramic coating has good stickiness and suitable mobility, avoids occurring that secondary adds water, to ensure that the intensity of nano wearproof ceramic coating is not lowered; The size of the work plane smeared as required, is poured on parts by appropriate nano wearproof ceramic coating, is then poured on each end with Mortar Plates, is applied to desired thickness; Frequently check the thickness smeared, guarantee that thickness is accurate;

(2), the construction of vertical surface:

Nano wearproof ceramic coating requires that mixing time is more than 20 minutes, and add water stirring more than 3 minutes, until obtain suitable stickiness, can be formed one " wet bulb "; The nano wearproof ceramic coating be stirred is placed on sand plate, Mortar Plates is put into the surface of anchored net, in the interlayer between mortar press-in anchored net and parts; Upwardly while Mortar Plates, pass through quick mobile Mortar Plates; Make in this way, nano wearproof ceramic coating is easier to construction, frequently checks the thickness that material is smeared;

(3), the construction on surface, the crown:

When nano wearproof ceramic coating is used for position, the crown, increase the mixing time of 3 minutes to obtain the larger nano wearproof ceramic coating of stickiness; Be placed on Mortar Plates by the nano wearproof ceramic coating newly stirred, upwards in nano wearproof ceramic coating press-in anchored net, Mortar Plates be moved back into original position, then pass through the "the" shape motion doing repetition; Use this method, easily nano wearproof ceramic coating will be pressed into the interlayer between construction parts and anchored net; In the time that nano wearproof ceramic coating also " wets ", guarantee to obtain thickness of constructing accurately;

Constantly check nano wearproof ceramic coating when smearing, confirm that nano wearproof ceramic coating is pressed into after anchored net completely; Scraping the material of 10mm*10mm with trowel off, expose anchored net, checked whether airbag, if there is airbag, after anchored net, being pressed into more nano wearproof ceramic coating when smearing; After checking out, again smear nano wearproof ceramic coating in the place scraped off, and floating with Mortar Plates; If check and find airbag gas leakage, be then coated with the nano wearproof ceramic coating spread and removed from parts, abandoned and do not re-use, again smeared construction with new nano wearproof ceramic coating.

2. nano wearproof pottery composite protective construction method as claimed in claim 1, it is characterized in that, preparing the raw-material proportion by weight of nano wearproof ceramic coating is: 5mm-8mm electro-corundum 65-70 part, 100nm-300nm nano-ceramic powder 15-20 part, aluminate cement 3-6 part, SiO ₂micro mist 2-5 part, active a-Al ₂o ₃powder 2-5 part, composite highly effective dispersing agent 0.2-1 part, crystallization-promoter 1-3 part;

Wherein, the material quality part proportioning preparing nano-ceramic powder is: zirconia 9-11 part, alumina 73-77 part, magnesia 5-7 part, zinc oxide 5-7 part, cobalt oxide 2-4 part;

Described composite highly effective dispersing agent is amido sulfoacid series high-efficiency water reducer, and described crystallization-promoter is oxide, the chloride of magnesium;

Adopt the levigate legal system of high-temperature calcination for nano-ceramic powder, by nano-ceramic powder and electro-corundum, aluminate cement, SiO ₂micro mist, active a-Al ₂o ₃powder, composite highly effective dispersing agent are mixed with nano wearproof ceramic coating together with crystallization-promoter.

3. nano wearproof pottery composite protective construction method as claimed in claim 2, it is characterized in that, construction temperature requires: construction period, the temperature of job location controls at 5 DEG C-30 DEG C, when temperature is too low, material itself and construction area are heated to more than 5 DEG C, until ceramic material is smeared complete; Avoid when high temperature constructing under direct Exposure to Sunlight or high wind situation, prevent dry and cracked rapidly, the weakening strength of materials of material surface.

4. nano wearproof pottery composite protective construction method as claimed in claim 3, it is characterized in that, when cleaning and weld anchor fixed network, in order to prevent working face edge deformation and dry and cracked, weld thick 5mm, high 20mm band iron at the edge of working face, soldering angle is vertical with the work plane at place.

5. as claim 1-4 arbitrary as described in nano wearproof pottery composite protective construction method, it is characterized in that, construction precautions is:

1), nano wearproof ceramic coating must the below of press-in anchored net tightly;

2), construction area must be cleaned out, and perform according to the above;

3), construct when horizontal plane, suggestion directly uses bobbing machine on coverage rate or trowel, makes its more all even densification, but when vertical plane or downward surface construction, then can not use bobbing machine;

4), after surface completes, surface must be protected immediately to prevent rapid mummification, curing agent is sprayed on surface by the general sprayer of usual use, every square metre of curing agent that need spray 0.2 ~ 0.3L, also can to sprinkle water maintenance, in working face edge, curing agent fountain height need double, and prevents crackle;

5) the nano wearproof ceramic coating, after construction reaches the curing time of 7d as far as possible, is at least not less than 3d in principle, within curing time, must carries out maintenance every day;

6), nano wearproof ceramic coating is in work progress and in curing time, forbids anyly to beat, hammer impacts sexual behaviour;

7), nanometer antiwear wearable ceramic coat should construct complete before initial set, and amount of agitation should material use while stirring required for initial setting time and construction, and the wear-resistant paint losing workability is forbidden secondary to add water to stir to use again.