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dop设计(ID:dopdesign)原创
Author丨DOP Design
Editor丨Reiko
We said "before", today we will have an in-depth understanding of this effect is closest to natural stone, and can reach the degree of fake and real green material - imitation stone aluminum plate.
Now, let's take a look at why stone aluminum veneer can replace traditional natural stone:
1. What is imitation stone aluminum plate?
2. Processing technology and type of imitation stone aluminum plate
3. The construction process of imitation stone aluminum plate
PS: The article is long, please slide down to section 3 for the construction process.
01. What is imitation stone aluminum plate?
1. Concept
Imitation stone aluminum plate is a material that is based on aluminum veneer and is attached to the surface of aluminum veneer after high temperature curing of different colors of paint and pattern by reproducing the texture, texture and color of natural stone, etc., and then after primer, topcoat, overprint paint and other finishes.
△ Partial material indication
△ Schematic representation of material composition
To put it simply, the surface of aluminum veneer is treated through a series of treatments to make the same effect and texture as natural stone, making it the most ideal alternative material for natural stone.
2. Features
a. The effect is realistic
b. Green environmental protection
Imitation stone aluminum plate can be 100% recycled and recycled, and will not produce problems such as garbage accumulation, which is conducive to reducing the resource consumption of natural stone and is a green and environmentally friendly decorative material.
c. Strong plasticity
The base of the imitation stone aluminum plate is an aluminum plate, so it is highly malleable, and can be processed into arcs, arches, waves, spherical and other relatively complex shapes, and can also be customized according to the size of the construction site, which makes up for the defects of stone modeling limitations, so as to meet more design needs.
d. Superior performance
(1) The surface coating film is dense and flexible, waterproof and stain-resistant, far better than other curtain wall building materials, not easy to absorb dust, and has super self-cleaning ability and stain resistance.
(2) The fire rating is A1, which has good fire retardant performance and can meet the fire protection requirements of indoor and outdoor wall engineering projects.
(3) Because the imitation stone aluminum plate is made of aluminum alloy, its weight is very light, about one-tenth of the stone. However, the strength is very high, usually the weight of the 3.0mm thick veneer is about 8kg, and the tensile strength is 100~280N/m㎡.
(4) It has excellent physical properties, can effectively resist the invasion of environmental changes such as acid rain, air pollution and ultraviolet rays when used indoors and outdoors, and can resist wind and earthquake, rainwater leakage, lightning and impact, and has a long service life, up to 10~15 years or even longer.
e. Convenient construction
Generally, imitation stone aluminum plates are processed and formed in the factory, which are very simple and convenient in the process of transportation and installation, with super operability, which can greatly shorten the construction period, and at the same time, the later maintenance is also very easy.
source：建筑译者姚力
f. Cost-effective
According to the price required per square meter, compared with the basic price of traditional natural stone, the price of imitation stone aluminum plate is about 1/5 of that of natural stone, but the performance has more advantages than stone and is more cost-effective.
3. Common parameters
The common parameters of imitation stone aluminum plate are usually as follows:
Dimensions
600mm×600mm、 600mm×1200mm、
1000mm×1000mm、1000mm×2000mm、
1200mm×2400mm、1200mm×2500mm、
1200mm×3000mm、1220mm×2440mm、
1250mm×2500mm、1500mm×1800mm、
1500mm× 3000mm, 2000mm×6000m etc.
The unfolded size of the aluminum plate is within 1300mm×4000mm for the conventional plate, and the excess is for the ultra-wide plate.
thickness
The thickness is selected according to the size of the plate actually required for the project, usually 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, etc.
(The above are the common parameters of most product materials on the market, for reference only)
4. Price range
The price of imitation stone aluminum plate is usually related to the size specification, thickness, surface treatment, imitation stone texture, brand, origin, project, etc., and the price range is generally 100~400 yuan / square meter.
(The price is an ordinary mid-range price, and the price of materials will fluctuate according to different projects, different brands and other reasons, for reference only)
02. Processing technology and type of imitation stone aluminum plate
1. Processing technology
From the concept of imitation stone aluminum plate, it can be found that it can be simply divided into two parts: "aluminum plate base + finishing paint layer". Then, its processing technology is generally two parts - sheet metal process and painting process.
a. Sheet metal process
The sheet metal process, also known as sheet metal processing, mainly refers to the processing of aluminum plate substrates, that is, the processing of aluminum veneer into the shape and size required for construction.
The process flow can be simply summarized as:
Cutting→ bending→ welding→ grinding→ assembly → polishing
△ Schematic diagram of the cutting and corner opening process
△ Schematic diagram of bending process
△ Schematic diagram of welding process
△ Schematic diagram of grinding process
b. Coating process
The coating process, also known as finishing processing, mainly refers to the coating of the finishing paint layer, that is, painting on the processed aluminum plate substrate. There are two main coating processes, one is roller coating and the other is spraying.
The roller coating process refers to the transfer of paint to the surface of the coated object in the form of a wet film on the surface of the roller. Roller coating production lines are relatively rare, and the general coating process refers to spraying.
The spraying process is as follows:
Substrate treatment (including washing, drying, pendant, inspection), spraying (including primer, intermediate paint, topcoat coating), curing treatment→→ quality inspection→ film packaging → curing treatment
△ Schematic diagram of the spraying process
2. Process type
Imitation stone aluminum plate is classified according to the different process practices of the paint layer, which can generally be divided into spraying imitation stone aluminum plate, pre-rolling imitation stone aluminum plate, spraying imitation stone aluminum plate, and real stone paint spraying imitation stone aluminum plate.
a. Spraying imitation stone aluminum plate
It is divided into fluorocarbon paint spraying and polyester powder spraying imitation stone grain aluminum plate, which is generally three coats and two bakes.
b. Pre-roll coated imitation stone aluminum plate
By continuously rolling the fluorocarbon paint, and embossing the corresponding stone texture on the aluminum coil, the corresponding stone texture is transferred, usually five coats and five bakes.
c. Spray imitation stone aluminum plate
Generally, electrostatic paint atomization spraying is used, but if it is to be processed into stone color by spraying, it is necessary to make a continuous electrostatic nozzle into a spot spray nozzle, which usually requires three coats and two bakes.
d. Real stone paint spraying imitation stone aluminum plate
It is divided into two types: smooth and hemp, which is sprayed on the aluminum veneer substrate with real stone paint, and is also commonly used outdoor 3D tactile stone grain, usually three coats and one bake.
03. Construction technology of imitation stone aluminum plate
The application of imitation stone aluminum plate is relatively wide, indoor and outdoor walls can be applied, so in the actual project of indoor wall engineering, its construction technology is the same as that of ordinary aluminum veneer, and it is commonly used to be dry-hanging.
Let's take the dry-hanging process of imitation stone aluminum plate interior wall as an example, and its specific construction process is:
Construction preparation→ measuring elastic line→ installation of angle steel angle code→ installation of keel frame→ installation of U-shaped groove pendant→ installation of imitation stone aluminum plate→ caulking treatment→ finished product protection
1. Construction preparation
Check the construction drawings in detail to ensure the perfection of the design and processing. Ensure that the plastering of the bottom layer of the wall is completed, and the inspection and acceptance are qualified.
Other preliminary preparations, such as the preparation of construction tools, the preparation of other wall construction accessories, personnel technical training and so on.
2. Measure the elastic line
According to the requirements of the design drawings and the actual situation of the site, the measurement and pay-off are carried out, the center point of the embedded parts is determined and checked to be correct, and the position of each anchor bolt is determined with the pre-made wood board or cardboard mold (the same size as the embedded parts). Use ink lines to pop up keel split lines, finish outline lines, horizontal datums on walls, and so on.
3. Install the angle steel corner code
It is usually connected to the embedded parts or steel members of the wall by means of corner codes. The installation of the angle steel corner code is used for the subsequent keel and aluminum plate and other components to be fixed on the corner code, which is better and firmer in integrity.
4. Install the keel frame
The keel frame is mainly made of square steel, and the installation of the vertical keel is carried out according to the specific position of the pay-off, and the vertical keel should be connected with the corner code connector by bolts, and adjusted and fixed. The transverse keel is fixed to the vertical keel with angle steel.
5. Install the U-shaped groove pendant
According to the position of the hanging groove on the side of the aluminum plate, the position of the U-shaped groove pendant is determined, and the countersunk self-tapping screw is fixed with the vertical keel.
6. Install imitation stone aluminum plates
Before installation, it is necessary to ensure that the concealed project has been accepted and qualified, and when installing the imitation stone aluminum plate, it is necessary to ensure that the side hanging groove of the aluminum plate is firmly hung on the pendant, and at the same time, it is necessary to check and adjust at any time to ensure the flatness of the wall.
7. Caulking treatment
After installation, it is necessary to caulk with weather-resistant sealant to ensure the airtightness and watertightness between the plates. Before gluing, it should be filled with foam rods, and then cleaned with a special cleaning solvent, and after the surface is dry and stable, then the vertical seams should be closed from top to bottom, and the horizontal seams should be closed in a one-way order.
8. Finished product protection
When the imitation stone aluminum plate is installed, it should be covered with plastic film to protect the parts that are easy to be polluted, and the parts that are easy to be scratched and touched should be protected by safety railings.
9. Precautions
a. When adopting this method, the vertical keel spacing is the same as the width of the plate, and the recommended plate width ≤ 1200mm. And the imitation stone aluminum plate should be processed into plates in the processing plant, and no secondary processing shall be carried out on site.
B, fixed vertical keel angle code spacing should be ≤ 1200mm, but if installed on the light block, can not use this corner code fixing method, should be fixed on the concrete ring beam or floor, structural beam.
c. The base plate is used as the matrix instead of the steel frame to fix the U-shaped groove or eat nails, which can not be affected by the size of the plate and is relatively flexible in layout, but because the base layer is made of wood plywood, the fire performance is not high.
10. Node structure
△ Keel frame schematic
△ Schematic diagram of the construction method
△ Schematic diagram of the yin corner node
△ Diagram of the yang angle node
(Some of the pictures in this article come from the Internet, and the copyright belongs to the original author)
Brief summary.
Well, that's all for this issue of DOP, and the [DOP Node Library] and [Community] that you asked about are actually on the official website.