The bidding instructions for the upper window Bridge-cutoff aluminum alloy doors and windows the profiles, hardware accessories, accessories and auxiliary materials used shall strictly implement the current national standards for design, construction and acceptance, industry standards and requirements of relevant specifications and regulations.
Bridge-cutoff aluminum alloy the wall thickness of the profile recommend used shall not be less than 1.4mm, and the specific thickness shall be designed and selected by the bidder.
Hollow Glass: The glass thickness is calculated and determined by the manufacturer, and the high quality automotive float glass of the large factory is adopted, float glass should conform to the standard float glass should conform to the standard grade one or superior standard hollow decorative strip adopt high quality aluminum alloy strip glass with a window less than 900mm from the ground or an area greater than 1.5 ㎡, and hollow steel glass door glass should be adopted.
Molecular sieve shall be set for hollow glass sealing, and high-quality butyl rubber and Polysulfide rubber shall be selected for sealing materials. The following measures should be taken in the design of glass heat-resistant structure; The surrounding parts of all glass should have defects that are easy to cause cracks. For glass that is prone to hot cracking, chamfering and edge grinding should be carried out on the edge. Glass inlay shall be made of sealing gasket material with good elasticity.
The design of window glass should meet the relevant regulations and specification requirements such as "regulations on the management of building safety glass", "technical regulations on the application of building glass", "hollow glass" and "tempered glass.
Glass product selection scope; Profile; Window structure profile wall thickness is greater than 1.4mm <, the quality reaches the national standard.
Bridge-cutoff aluminum alloy the surface of the profile is sprayed with static powder of different colors inside and outside, white inside and dark blue gray outside, subject to the sample provided by Party A, and the quality meets international standards.
Bridge-cutoff aluminum alloy the heat insulation strip adopts a three-Cavity Structure of bridge-cutoff aluminum alloy profiles, which should reduce the variety of aluminum profiles as much as possible while meeting the structural requirements. The design of the window structure shall comply with the relevant provisions of the aluminium windows and the specification requirements.
