Welcome to Shandong Zhishang Steel Co., Ltd.
Welcome to Shandong Zhishang Steel Co., Ltd.
Get a free quote quickly!
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec id erat sagittis, faucibus metus malesuada, eleifend turpis. Mauris semper augue id nisl aliquet, a porta lectus mattis. Nulla at tortor augue. In eget enim diam. Donec gravida tortor sem, ac fermentum nibh rutrum sit amet. Nulla convallis mauris vitae congue consequat. Donec interdum nunc purus, vitae vulputate arcu fringilla quis. Vivamus iaculis euismod dui.
The effect of sound absorption and noise reduction is closely related to the shape and size of the room and the location of the sound absorption material. Together, these factors determine how sound is transmitted in the space, which affects the performance of the sound-absorbing board.
First of all, when the area of the room is large, if people's activity area is close to the sound source, then the direct sound will dominate. Direct sound refers to the sound that is transmitted directly from the sound source to the receiving point without any reflection and scattering. In this case, the role of the sound absorption board is relatively small, because it mainly affects the reflected sound, and the proportion of direct sound is high, and the improvement of the sound absorption board on the overall sound environment is limited.
On the contrary, if the area of the room is small, the sound emitted by the sound source will be reflected many times between the various walls, and the direct sound will be mixed together to form a complex sound field. In such an environment, the role of the sound absorption board is particularly important. The sound absorption board absorbs part of the reflected sound, reducing the energy of the sound, which significantly reduces noise levels and improves sound clarity.
In addition, the shape of the room will also have an impact on the sound absorption effect. For example, if a room has a lanky shape and is more than five times as long as it is wide, sound will experience more reflection in such a space. In such a space, the sound absorption board can effectively capture the sound of multiple reflections, reducing the number of reflections of the sound, thereby improving the sound absorption effect.
To sum up, in order to achieve the best sound absorption and noise reduction effect, it is necessary to consider not only the performance of the sound absorption material itself, but also the size, shape and layout of the room. Through careful planning and design of these factors, the quality of the indoor acoustic environment can be significantly improved, creating a more peaceful and comfortable listening space.
There are four types of primer and film thickness primer: epoxy resin, polyester resin, acrylic resin and polyurethane resin. The primer is generally selected according to the bottom use of the product, the occasion of use, the degree of processing, and the matching of the top paint. The film thickness of the primer is usually 5um.
1. epoxy primer
It has good adhesion to the substrate, good water resistance, alkali resistance and chemical corrosion resistance, and is the earliest coil primer, and its flexibility is not as good as other primers.
2. polyester bottom
Good adhesion with the substrate, excellent flexibility, more sensitive to wet environment, chemical resistance is not as good as epoxy primer.
3. water-soluble acrylic primer
Good adhesion to the substrate, excellent flexibility, organic solvent content bottom, low temperature curing, not suitable for storage in a humid environment, high requirements for pretreatment.
4. polyurethane primer
It has chemical resistance, friction resistance, durability and good flexibility.
Type of finish and film thickness
The most commonly used topcoats are polyester, silicon modified polyester, polyvinyl chloride plastisol and polyvinylidene fluoride.
1) Polyester
Good adhesion, wide range of formability and outdoor durability, moderate chemical resistance.
2) silicon modified polyester
The hardness, wear resistance and heat resistance of the coating film are good, as well as good outdoor durability and non-powdering, gloss retention and flexibility are limited, and the cost is medium to high.
3) polyvinylidene chloride
With good formability and color retention, excellent outdoor durability and resistance to powder, solvent resistance, limited color, expensive.
4) polyvinyl chloride plastic sol
Excellent external durability and chemical resistance, damage resistance, beautiful, need special primer matching. The surface can have a smooth type for compression or automatic shrinkage type to form a pattern. The coating thickness is generally greater than 100um, in addition to plastisol, under normal circumstances, the coating thickness of the primer and top paint > =20um, the performance of its products can achieve the predetermined purpose.
Molded plate is a kind of steel plate with high strength and durability, which is mostly used for architectural decoration. Due to the use of high-strength steel plate, coupled with a reasonable size design, so that it is widely used in a variety of building roof, wall, easy installation, flexible, never limited by any factors in the building.
Main uses of color molded steel plate:
Used for all kinds of roof, wall decoration, all kinds of internal and external assembly materials, suitable for any building requirements.
Color molded steel plate material:
Color coated steel plate, hot dip galvanized steel plate, aluminum alloy steel plate, can be freely selected according to needs.
Color molded steel plate quality characteristics:
1.excellent waterproof performance
After the site assembly of the intersection treatment, in the case of roof slope > 4%, it can withstand any adverse weather conditions.
2. widely used
It can be combined with various insulation materials and various bottom layers to form thermal insulation or non-thermal insulation roofing. The length can be fixed according to the need to avoid longitudinal lap, thus eliminating the possibility of water leakage. Symmetrical appearance, no fastening screws exposed, neat and beautiful, excellent anti-corrosion performance. The hook type mechanical fixation is firm and reliable, and can withstand the change of thermal expansion. Beautiful appearance, easy installation, smooth drainage, economic building materials!
The following points should be paid attention to in the use of color coated rolls to prevent damage and reduce service life.
1. When loading and unloading, rubber pads should be added to the contact point between the crane and the color coating roll to prevent scratches and paint falling off.
2. If the color coating roll needs to be cut lengthwise, lay a rubber pad on the floor of the device that is in contact with the color coating plate. After cutting, the metal chips should be removed immediately to prevent scratching the coating on the surface of the color coated board.
3. Zinc can be used as a protective steel, as far as possible in the use of color coated plate incision secret location, there are strict engineering requirements to protect the incision.
4. After the installation of the project, check and remove the welding points and metal chips remaining on the color coating board during the construction, so as to avoid corrosion to the color coil. Color roll storage must be guaranteed in a dry, ventilated indoor environment, so as not to open storage in areas where condensation is easy and temperature changes. When pressing molding, it is necessary to cover the film must be covered, such as: PVDF coated color coated plate, aluminum plated zinc plate.
5. Color coated rolls should be stored in a clean and tidy environment to prevent the erosion of a variety of corrosive media. The floor of the storage place should be flat, not hard, and have sufficient carrying capacity.
6. Horizontal steel coil should be placed on rubber pad, pad wood, bracket and other devices, fasteners should not be upward, directly placed on the ground or transport vehicles.
7. In order to prevent crush injury, steel rolls are usually not overlapped. When the stacking steel plate is stored, the number of stacking layers is strictly limited, and the lower layer should be a bag with large weight and size.
8. When color coating rolls are used on the surface of a building, try to produce products at the same time on the same production line of the same manufacturer to avoid mixing and resulting in color difference, affecting the visual effect.
