Curtain wall product structure upgrades and technological innovation are accelerating. After decades of development, the functions and material sources of curtain wall products have been continuously enriched. Especially with the development of new materials and continuous technological innovation, building curtain walls have gradually developed towards energy conservation, environmental protection and intelligence, with high-tech products such as double-layer curtain walls and photovoltaic curtain walls. Enter the market. ?
Construction curtain wall companies must have design qualification certificates, production licenses, and construction qualification certificates. Capital barriers: The curtain wall industry is a capital-intensive industry. The construction curtain wall project cycle is long, payment collection is difficult, and the demand for funds is large. This is a major obstacle to entering the industry.
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Hidden frame curtain walls and semi-hidden frame curtain walls usually use pressure plates (pressure blocks) to transmit force, and their spacing is generally not greater than 300mm, with fixed distance and non-fixed distance pressure plates. After the fixed-distance pressure plate is tightened through the connecting bolts, the pressure gap is relatively fixed, and the pressing force on the sub-frame of the glass panel is relatively consistent, which is convenient for absorbing structural and temperature deformations, reducing friction noise, and avoiding uneven pressure due to the pressure block. This causes image distortion on the glass panel.
Fake open frame usually adds a decorative strip at the joint of the hidden frame curtain wall to achieve the decorative effect of the exposed frame curtain wall. This structure should use the hidden frame curtain wall design method to design the insulating glass and structural adhesive, that is, the second sealant should be sealed with silicone structural adhesive. If polysulfide rubber is used as the second seal of insulating glass, although it may not be damaged by ultraviolet irradiation, there are still unsafe factors.
Baidu Encyclopedia-Curtain Wall