CN111993535A

CN111993535A - Method for manufacturing light building curtain wall board

Info

Publication number: CN111993535A
Application number: CN202010089583.5A
Authority: CN
Inventors: 陈刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2020-11-27

Abstract

The invention relates to a manufacturing method of a light building curtain wall board, belongs to the field of energy-saving and environment-friendly novel inorganic materials, and is suitable for preparing building part components with smooth and compact surfaces, high surface layer density and low overall density. The method of the invention comprises the following steps: s1: a step of mould pretreatment, in which a plurality of small holes are formed in the inner wall of a mould, a narrow water tank is preset in the mould, a layer of polymer film with water permeability is attached to the inner wall of the mould, water mist is sprayed into the mould, and then powder with cement and silica sand as main components is scattered; s2: mixing and stirring PLHC raw materials; s3: the PLHC light slurry is filled in the whole specified mould, and then the mould is taken together to be dried and molded under the specified conditions, and then the reaction is carried out at higher temperature to form the mould; s4: and (5) demolding.

Description

Method for manufacturing light building curtain wall board

Technical Field

The invention relates to a manufacturing method of a light building curtain wall board, belonging to the field of energy-saving and environment-friendly novel inorganic materials. The method of the invention is particularly suitable for the preparation of building part components which have smooth and compact surfaces, special requirements on the strength of the surface layer and light overall weight.

Background

The construction industry is one of the pillar type industries affecting the national civilization, and the annual output value exceeds more than 20 percent of GDP. The main operation form of the existing construction industry is a cast-in-place concrete type, and the cast-in-place concrete type has the advantages of simple technology, low cost, capability of absorbing a plurality of labor forces and the like, and makes great contribution to the urbanization construction of the last two thirty years. However, this type of operation has several significant disadvantages: 1. the resource consumption is huge, the precision is not high, and the waste is huge; 2. the raw materials are transported to a project site, all construction operations are completed on site, dust pollution is obvious, and environmental protection is not facilitated; 3. a large amount of labor force is needed for field operation, the labor cost is huge, the operation environment is severe, and various industrial injuries are easy to occur; 4. the construction period is long, and various social resources occupy a huge amount, and the like. With the pace of social progress, the above disadvantages become more and more bottleneck problems restricting the continuous development of the construction industry.

Based on the huge demand of industry development, the nation has made a series of policy guidance opinions from 2016 to guide transformation and upgrade of the construction industry, and requires about ten years of time to make the fabricated building account for more than 30% of the newly built building quantity in the same year. Up to now, the assembly type building industry becomes one of novel industries which attract a lot of attention and have huge industrial potential. The prefabricated building refers to a novel building construction mode that high-quality and standardized building component parts are produced in batches in a factory, and after the parts are transported to a project construction site, building construction is completed through a rapid assembly mode, which is compared with a building which is like a car.

The assembly type building industry can be subdivided into industries such as building structure members, outer wall maintenance members, inner partition wall members, heat insulation products, interior decoration products, electromechanical equipment facilities and the like according to required parts, wherein the outer wall maintenance members have the highest difficulty and the highest requirement. The product has the requirements of high durability, light weight, high strength, safe and reliable connection, good decoration, heat preservation, heat insulation and the like, and is one of the elbows in the current domestic development assembly type building industry. The present invention has been developed based upon the great needs of the industry.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a manufacturing method of a light building curtain wall board, which comprises the following steps:

s1: a step of mould pretreatment, in which a plurality of small holes are formed in the inner wall of a mould, a narrow water tank is preset in the mould, a layer of polymer film with water permeability is attached to the inner wall of the mould, water mist is sprayed into the mould, and then powder with cement and silica sand as main components is scattered;

s2: mixing and stirring PLHC raw materials;

s3: the PLHC light slurry is filled in the whole specified mould, and then the mould is taken together to be dried and molded under the specified conditions, and then the reaction is carried out at higher temperature to form the mould;

s4: and (5) demolding.

Preferably, in step S1, the mold structure has special requirements, i.e., the inner wall of the mold is provided with a plurality of small holes, and a narrow water tank is preset inside the mold.

Preferably, in step S1, a polymer film with water permeability is attached to the inner wall of the mold, so as to ensure that part of the water in contact with the film after the slurry is added can be partially penetrated through the film due to gravity and the like, and ensure that the slurry cannot be entirely penetrated;

preferably, in step S1, the mold is pretreated in advance, and is sprinkled into a powder mainly composed of cement and silica sand, and a raw material for accelerating setting, such as water glass, etc., may be added.

Preferably, the step of spraying the water mist, the cement and the silica sand powder may be repeated 2 to 4 times in step S1 according to the requirements of the final product.

Preferably, in step S1, the weight ratio of the cement to the silica sand is 1: 10 to 10: 1.

Preferably, in step S1, the silica sand has a particle size range according to the target requirement of the final product: 10 mm-325 mesh.

Preferably, the predetermined mold has an arbitrary structure.

Compared with the prior art, the invention has the following advantages: the operation is simple and controllable, the method is very suitable for large-scale batch production of standardized products on a factory assembly line, the traditional cast-in-place construction of the building exterior wall can be replaced, and the efficiency is greatly improved; the product has high surface strength, safety, reliability and good durability; the product has low integral density and light self weight, can greatly reduce the construction cost of the structure and the foundation, reduces the self weight of the whole building, and is beneficial to resource saving and earthquake resistance; the product has low integral density, good heat preservation and sound insulation effects, energy conservation, environmental protection and strong living comfort; the installation is quick, and a large amount of labor force can be saved; during installation, dry construction is carried out, the site is clean and tidy, and environmental pollution such as dust, noise and the like is avoided.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be described in detail with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the invention, the inventor adopts a novel inorganic material to produce and obtain the product through a specified process, in particular, the invention adopts the novel inorganic material of PLHC (precast light high-strength ceramic), has the advantages of light density, high strength, good durability, controllable reaction process, capability of being made into various physical shapes according to requirements and the like, can be used for producing products in various shapes in a large scale and can be used for any part in the field of building materials.

The invention discloses a manufacturing method of a light building curtain wall board, which comprises the following steps:

s2: mixing and stirring PLHC raw materials;

4: and (5) demolding.

In the invention, the step of preprocessing the mould comprises three aspects, namely a mould structure, namely a plurality of small holes are formed in the inner wall of the mould, and a narrow water tank is preset in the mould; secondly, a polymer film with water permeability is adhered to the inner wall of the mould; thirdly, when in use, water mist is sprayed into the mould, and then powder with cement and silica sand as main components is scattered. The method comprises the steps of modifying a mould structure, additionally pasting a water-permeable polymer film on the inner wall, spraying water mist before use, spraying fine powder which takes cement and silica sand as main components, injecting light slurry and other equipment modification and process control, and finally forming the light product which is compact and high in surface layer, small in overall density and uniform and non-layered in internal structure, wherein the thickness and the strength of the surface layer, the thickness and the density of a core layer can be correspondingly adjusted according to different target requirements of the final product.

The prescribed mold is a mold of any structure.

In the invention, in step S1, the mass percentage of the cement and the silica sand is 1: 10 to 10: 1.

In the present invention, in step S1, the silica sand particle size ranges are as follows according to the target requirements of the final product: 10 mm-325 mesh.

In the present invention, in step S1, the mold is pretreated in advance, and the powder mainly composed of cement and silica sand is sprinkled, and a raw material for accelerating setting, such as water glass, etc., can be added.

In the invention, the light product with compact and high strength surface layer, small integral density and uniform and non-layered internal structure is finally formed by modifying the structure of the mould, additionally sticking a water-permeable polymer film on the inner wall, spraying water mist before use, then spraying fine powder which takes cement and silica sand as main components, and then injecting light slurry and other equipment modification and process control, wherein the thickness and the strength of the surface layer, the thickness and the density of the core layer can be correspondingly adjusted according to different target requirements of the final product.

The prescribed mold is a mold of any structure.

In the invention, the water-permeable polymer film is selected from a PVC perforated film coiled material, a PE perforated film coiled material, a three-layer composite film coiled material of inorganic fiber cloth-PVC perforated film-inorganic fiber cloth or a three-layer composite film coiled material of inorganic fiber cloth-PE perforated film-inorganic fiber cloth.

Compared with the prior art, the invention has the following advantages: the manufacturing method of the light building curtain wall board is particularly suitable for integrally forming a surface layer with smooth and compact surface and large density; the product has good internal integrity and no layering phenomenon; the energy consumption is low, the resources are saved, and the environment is protected; the invention has the advantages of convenient construction, easy maintenance, high cost performance, firmness and durability.

In the invention, the product prepared by the preparation method is an intermediate product, can be directly used, and can be further processed to prepare a finished product according to requirements.

Examples

Example 1

In order to obtain a product with a smooth and compact surface layer and a high-density surface layer and light overall weight, a plurality of small holes are formed in the inner wall of the mold in advance, a narrow water tank is preset in the mold, and a layer of polymer film PVC perforated film coiled material with water permeability is attached to the inner wall of the mold.

Spraying water mist into the mold, then spraying powder with cement and silica sand as main components in the weight ratio of 3 to 7, wherein the silica sand has a particle size of 10mm, repeating the steps for 2 times, and waiting for a plurality of times.

Then injecting the PLHC light slurry into the mould. After the pouring is finished, carrying out the following treatment with the mold, standing and molding for 3 hours at room temperature, and reacting for 24 hours at 45 ℃; and (5) obtaining a product after a demoulding step.

Through the method of this embodiment 1, the ground paste that is close to the mould inner wall because the dead weight extrusion, during the basin in the mould can be arranged through the permeable membrane to partial free state's water for ground paste moisture content descends, the ground paste density grow that is close to the bottom surface course simultaneously, and the wholeness of ground paste is intact, layering phenomenon can not appear.

The product obtained in example 1 has smooth and compact surface, high strength, light overall weight, good internal integrity and no delamination.

Example 2

In order to obtain a product with a smooth and compact surface layer and a high-density surface layer and light overall weight, a plurality of small holes are formed in the inner wall of the mold in advance, a narrow water tank is preset in the mold, and a layer of polymer film PE perforated film coiled material with water permeability is attached to the inner wall of the mold.

Spraying water mist into the mold, and spraying powder containing cement and silica sand as main components in the weight ratio of 4 to 6, wherein the silica sand particle size of 10mm is repeated for 2 times for some time.

After the pouring is finished, carrying out the following treatment with the mold, standing and molding for 3 hours at room temperature, and reacting for 24 hours at 45 ℃; and (5) obtaining a product after a demoulding step.

By the method of the embodiment 2, a surface layer with a smooth and compact surface and high density can be obtained, the thickness of the surface layer can be accurately controlled according to the number and the times of scattering, and the density of the surface layer is higher and the strength is higher when the internal light core layer is closer to the bottom.

Example 3

In order to obtain a product with a smooth and compact surface layer and a high-density surface layer and light overall weight, a plurality of small holes are formed in the inner wall of a die in advance, a narrow water tank is preset in the die, and a three-layer composite film coiled material of polymer film inorganic fiber cloth-PVC perforated film-inorganic fiber cloth with water permeability is attached to the inner wall of the die.

Through the method of this embodiment 3, the ground paste that is close to the mould inner wall because the dead weight extrusion, during the basin in the mould can be arranged through the permeable membrane to partial free state's water for ground paste moisture content descends, the ground paste density grow that is close to the bottom surface course simultaneously, and the wholeness of ground paste is intact, layering phenomenon can not appear.

The product obtained in example 3 has smooth and compact surface, high strength, light overall weight, good internal integrity and no delamination.

The manufacturing method of the light building curtain wall board is particularly suitable for integrally forming a surface layer with smooth and compact surface and high density; the product has good internal integrity and no layering phenomenon; the energy consumption is low, the resources are saved, and the environment is protected; the invention has the advantages of convenient construction, easy maintenance, high cost performance, firmness and durability.

Claims

1. A method for manufacturing a lightweight building curtain wall board comprises the following steps:

and (3) SI: a step of mould pretreatment, in which a plurality of small holes are formed in the inner wall of a mould, a narrow water tank is preset in the mould, a layer of polymer film with water permeability is attached to the inner wall of the mould, water mist is sprayed into the mould, and then powder with cement and silica sand as main components is scattered;

s2: mixing and stirring PLHC raw materials;

s4: and (5) demolding.

2. The method of claim 1, wherein in step S1, after spraying water mist into the mold, powder mainly composed of cement and silica sand is sprinkled.

3. The method of making a lightweight building curtain wall panel as in claim 2, wherein the powder further comprises water glass.

4. The method for manufacturing a lightweight building curtain wall panel as claimed in claim 1, wherein the step of S1 is repeated 2-4 times.

5. The method for manufacturing the light building curtain wall board as claimed in claim 2, wherein the ratio of the cement to the silica sand is 1: 10-10: 1.

6. The method of manufacturing a lightweight building curtain wall panel as in claim 2, wherein the silica sand has a particle size range of: 10 mm-325 mesh.

7. The method of manufacturing a lightweight building curtain wall panel as in claim 1, wherein the predetermined mold is a mold of any configuration.