Polyurethane spraying and adhering construction process for binding at corner and door and window opening and the prefabricated polyurethane block thereof
A technology of hole spraying and construction technology, which is applied in the direction of building components, insulation, covering/lining, etc., can solve the problems of non-perpendicular angle, slow construction speed, unevenness, etc., and achieve the effect of increasing construction speed and uniform construction thickness
Inactive Publication Date: 2004-09-08
北京振利高新技术有限公司
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Problems solved by technology
[0004] The present invention provides a combination construction process of polyurethane yin and yang angles and openings of doors and windows and polyurethane prefabricated blocks thereof, so as to solve the problems of difficult construction, slow construction speed and non-perpendicular angles of yin and yang angles and openings of doors and windows sprayed on-site with polyurethane rigid foam plastic insulation walls , uneven technical problems
Method used
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Embodiment Construction
[0019] Example figure 1 As shown, the special polyurethane prefabricated block used in the construction process of polyurethane yin and yang corners and door and window openings spray-bonding combined with yang corners and door and window openings is in the shape of an angle iron, with a thickness of 20mm to 50mm, a basic thickness of 20mm, and a distance of 150mm from the tip of the two right-angled sides. The thickness at the point begins to decrease linearly at a slope of 10% to the tip, and it is wedge-shaped, and its slope is outside the two right-angle sides, which is used as a male corner polyurethane prefabricated block. The width of the two right-angle sides of the polyurethane prefabricated block is 200mm-400mm, the optimum width is 300mm; the length is 500mm-1500mm, the optimum length is 900mm. The special size can be cut with a wallpaper knife, and the four corners of the door and window openings can be pasted together with two polyurethane prefabricated blocks, an...
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Abstract
The present invention is polyurethane corner, spraying and adhering construction process of door and window opening and prefabricated polyurethane block thereof. The construction process includes leveling wall surface, painting moistureproof polyurethane primer; spraying base polyurethane layer to wall corners; foaming to form polyurethane layer with relatively small thickness; adhering prefabricated polyurethane blocks to corners and door and window openings while ensuring the total polyurethane thickness reaching the designed one; spraying main part of the wall with polyurethane; and painting polyurethane interfacing agent and leveling, anticracking treatment and decorating surface layer treatment. The angled prefabricated polyurethane block has thickness linearly reduced toward the ends of the two sides in 5-15 % slope. The present invention makes the construction of corners, door and window openings and other parts easy and fast.
Description
technical field [0001] The invention relates to a construction technique and components for the yin and yang corners of a thermal insulation wall and the openings of doors and windows. technical background [0002] In the construction of on-site spraying polyurethane thermal insulation building projects, the construction of yin and yang corners and door and window openings is a difficult point. Since the sprayed material is in a fluid state, the corners of the wall after spraying are mainly formed with rounded corners, verticality and flatness. The degree is not good. Moreover, the thickness of polyurethane insulation at these corners is usually thinner than that of the main wall. If you want to achieve the same thickness, you must increase the number of spraying times. However, due to the divergence during spraying, most of the polyurethane sprayed on the Unnecessary places are sprayed, and even sprayed outside the wall. This unnecessary loss of polyurethane raw materials ...
Claims
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Inventor 黄振利朱青
Owner 北京振利高新技术有限公司