What are the characteristics of hollow laminated g

2022-07-22
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Glass can be seen everywhere in reality. What is hollow laminated glass mentioned here? Hollow laminated glass is an integral part of hollow glass. This kind of glass can be used in many buildings. Its physical properties are excellent, and it is very suitable for installation and use in many medium and large-scale occasions. It also has a very good radiation resistance effect. At the same time, it also has good heat insulation performance, and has a very good blocking effect on heat, The manufacturing process is relatively complex. So, what is hollow laminated glass? What are the characteristics of hollow laminated glass? The following editor will introduce it to you one by one

glass can be seen everywhere in reality. Today we want to talk about hollow laminated glass. Hollow laminated glass is an integral part of hollow glass, which can be used in many buildings. Its physical properties are excellent, and it is very suitable for installation and use in many medium and large-scale occasions. It also has a very good radiation resistance effect. At the same time, it also has a good heat insulation performance, and has a very good blocking effect on heat, but the manufacturing process is relatively complex. So, what is hollow laminated glass? What are the characteristics of hollow laminated glass? The following editor will give you a detailed introduction one by one

1 insulating glass

(1) insulating glass classification

the combination of two or more pieces of glass. There is a certain interval between the glass and the glass. The interval is dry air, and the periphery is wrapped with sealing materials, so it is processed into insulating glass

there are three production methods of insulating glass: bonding method, welding method and fusion method. Due to the limitation of cost and process complexity, building insulating glass is basically produced by bonding method. The bonding process is divided into simple sealing and double sealing. Simple sealing is horizontal production. First place a piece of glass on the platform, place the aluminum alloy spacer strip on the glass plate, and then place another glass on the aluminum strip. After the position is aligned and adjusted, seal the edge manually or with a glue machine. The edge sealing material is polysulfide rubber, which is inspected and delivered after natural drying. It is usually called simply sealed insulating glass as manually glued insulating glass, and aluminum alloy strips can be observed on the side

(2) characteristics of insulating glass

? Optical properties according to the selected glass original sheet

insulating glass can have various optical properties. Its visible light transmittance ranges from 10% to 80%; The range of light reflectance is 25% - 80%; The total transmittance ranges from 25% to 50%

? Insulating performance insulating glass has excellent insulating performance

under some conditions, its insulating performance can be better than that of concrete wall. According to statistics, some European countries can save 40 ~ 50L of fuel oil per m2 per year by using insulating glass compared with ordinary single-layer windows

? Sound insulation performance insulating glass has excellent sound insulation performance. Its sound insulation effect is usually related to the type and intensity of noise. Generally, it can reduce the noise by 30 ~ 44db and the traffic noise by 3L ~ 38dB, that is, it can reduce the street car noise to the quiet level required by the school classroom

? At a certain indoor relative temperature, when the temperature of the glass surface reaches, dew will inevitably form until frost forms (below 0 ℃). This will seriously affect the perspective and lighting of the glass, and cause other adverse effects

2 laminated glass

laminated glass is a high-grade safety glass made of PVB film sandwiched between two or more layers of flat glass (or hot bending glass) under high pressure. It has the characteristics of transparency, high mechanical strength, UV protection, heat insulation, sound insulation, bullet proof, riot proof, etc. When the glass is impacted and broken, the fragments are stuck by PVB, which is not easy to hurt people, but form radial cracks, maintain the original shape and visibility, and can continue to be used for a certain period of time

laminated glass, also known as bulletproof glass, is widely used in high-rise buildings, curtain walls, ceilings, banks, jewelry stores, schools, villas and other places with high security requirements. Laminated glass integrates safety and lighting, which is fresh and elegant

3 characteristics of hollow laminated glass

(1) production process

hollow laminated glass is composed of two or more layers of flat glass. Two or more pieces of glass are bonded and sealed with sealing strips and glass strips with high-strength and high air tightness composite adhesive around. Dry gas is filled in the middle and desiccant is filled in the frame to ensure the dryness of the air between the glass sheets. Glass sheets with different properties can be selected according to requirements, such as colorless transparent float glass, embossed glass, heat absorbing glass, heat reflecting glass, wired glass, tempered glass, etc. and the frame (aluminum frame or glass strip, etc.) are made by cementation, welding or fusion

(2) physical properties

optical properties according to the selected glass original sheet, insulating glass can have various optical properties. Its visible light transmittance ranges from 10% to 80%; The range of light reflectance is 25% - 80%; The total transmittance ranges from 25% to 50%. Insulating performance insulating glass has excellent insulating performance. Under some conditions, its thermal insulation performance can be better than that of concrete wall. Sound insulation performance insulating glass has excellent sound insulation performance. Its sound insulation effect is usually related to the type and intensity of noise, which can generally reduce the noise, that is, it can reduce the noise of street cars to the quiet level required by school classrooms. When the temperature is too low, dew will inevitably form, which will seriously affect the perspective and daylighting of the glass, and cause other adverse effects

(3) conduction characteristics

radiation transmission is the transmission of energy in the form of radiation through rays, which includes visible light, infrared and ultraviolet radiation, just like the transmission of solar light. The reasonable configuration of insulating glass and the reasonable thickness of insulating glass interlayer can minimize the transmission of energy through radiation, thus reducing the loss of energy. The existence of water molecules and other active molecules in the air is the main factor affecting the energy transmission and convective transmission performance of hollow laminated glass. Therefore, improving the sealing performance of hollow laminated glass is an important factor to improve the thermal insulation performance of hollow glass

summary: the relevant information about what is hollow laminated glass and the characteristics of hollow laminated glass is introduced here. I hope this article is helpful to you. If there is anything else you don't understand, you can leave a message to Xiaobian below, and we will answer it for you as soon as possible

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