GB 9157-1988 Solid steel screen doors and windows GB9157-88 GB9157-1988 standard download decompression password: www.bzxz.net

Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
GB9157—88
Solid shaped steel screening door and window
Solid shaped steel screening door and windowConstruction Standard
1988-04-29 Issued
1988-11-01 Implementation
Issued by the Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China
W Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
Solid shaped steel screening door and window
Solid shaped steel screening door and windowSubject Content and Scope of Application
GB9157—88
This standard specifies the technical requirements and inspection rules for solid steel screen doors and windows (hereinafter referred to as screen doors and windows) used in conjunction with ordinary steel doors and windows. This standard applies to the inspection and acceptance of screen doors and windows. 2 Reference standards
GB5827.1 Inspection rules for solid steel windows
GB9156 Solid steel doors
GB5823 Terminology of building doors and windows
GB5826.1 Basic size series of casement steel doors (32, 40 mm solid material) GB5826.2
Basic size series of casement steel windows (25 mm solid material) GB5826.3 Basic size series of casement steel windows (32 mm solid material) GB2597
3 Technical requirements
Hot-rolled window frame steel
Dimensions, shapes, weights and allowable deviations of hot-rolled flat steel Varieties of rolled thin steel plates
3.1 Basic requirements
3.1.1 The profiles of screen doors and windows shall comply with the provisions of GB2597, GB706 and GB708. 3.1.2 The basic size series of screen doors and windows shall comply with the provisions of GB5826.1, GB5826.2 and GB5826.3. 3.2 Overall dimensions
For the allowable deviation of height and width, see Table 1. Table 1
Allowable deviation
<1500
Height A
Second-level product
First-level product
For the allowable length difference between the two diagonals, see Table 2.
Secondary
Approved by the Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China on April 29, 1988≤600
First-class
Width B
Second-class
Second-class
Implemented on November 1, 1988
Engineering Construction Standard Full Text Information System
Allowed length difference △L
3.2.3 The difference in the size of the screen fan grid is not more than 3mm. 3.3 Connection and coordination
Second-class
3.3.1 Each connection (welding, bolt connection) should be firm, and no defects such as false welding, breakage, looseness, etc. are allowed. Door
Second-class
3.3.2 The position of the installation holes of the screen door and window hardware parts should be accurate to ensure that the hardware parts are installed flat and firm to meet the use requirements. 3.3.3 The distance between the pressing holes shall not exceed 200mm, and the window screens shall be pressed tightly during trial installation. 3.3.4 The straightness of the screen leaf shall not exceed 1mm within a length of 1m, and its long side shall not be concave. 3.3.5 The flatness of the screen window leaf shall not exceed 1.5mm, and the flatness of the screen door leaf shall not exceed 2mm. 3.4 Appearance requirements
3.4.1 The surface of the screen doors and windows shall be flat, and there shall be no appearance defects such as burrs, welding slag, welding wire and obvious hammer marks. 3.4.2 Before applying anti-rust paint, the screen doors and windows shall be degreased and derusted; the coating shall be uniform and firm, and there shall be no obvious defects such as paint accumulation and paint leakage. 4 Inspection rules
4.1 Before leaving the factory, the screen doors and windows shall be inspected by the inspection department of the manufacturer and a certificate of conformity shall be issued. 4.2 Screen doors and windows are sampled and inspected by batch. When the batch is not more than 300 pieces, 3% is sampled and the total sampled quantity is not less than 5 pieces; when the batch is more than 300 pieces, 2% is sampled and the total sampled quantity is not less than 10 pieces. 4.3 Among the screen doors and windows sampled, if the first-grade rate is less than 90%, the batch of products shall be accepted as second-grade products. If the second-grade rate is less than 90%, the batch of products shall be doubled for sampling. If the second-grade rate is still less than 90%, all products shall be returned for repair. If the second-grade rate of the screen doors and windows sampled for the first time is less than 80%, all products shall be returned for repair.
4.4 Principles for the evaluation of first and second-grade products: key items must meet the requirements; main items meet their respective requirements; among general items, first-grade products must have more than 5 (including 5) items that meet the requirements, and second-grade products must have more than 3 (including 3) items that meet the requirements. 4.5 Inspection methods and measuring tools shall be in accordance with the provisions of Appendix A (Supplement). 5 Marking, packaging, transportation, purchase and storage
5.1 Each (or each) screen door and window should have a "qualified" mark. 5.2 The screen door and window should be packed firmly, strictly prevent deformation, and be convenient for transportation. 5.3 The screen door and window should be loaded and unloaded with care to avoid collision and entanglement. It should be transported in a vertical state to prevent squeezing and deformation. 5.4 When storing screen doors and windows, they must be leveled with pads, with a vertical angle of not less than 70 and a horizontal height of not more than 1.5m to avoid contact with corrosive media.
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Project Classification
Key Projects
Main Projects
General Projects
Additional Notes:
In this standard
Appendix A
Quality Inspection Items, Measuring Tools and Methods for Solid Steel Screen Doors and Windows (Supplementary Parts)
Welding points of screen windows and screen doors should be firm, and no defects such as false welding, breakage and looseness are allowed
Degreasing and rust removal
Difference in length of two diagonals △L||tt| |Height size deviation
Width size deviation
Accurate position of parts installation holes
Each bolt connection should be firm and not loose
The difference in the grid size of the screen fan is ≤3mm
No burrs, welding slag and obvious hammer marks on the surface
(depth ≤0.5mm)
The paint layer surface is uniform, and there should be no obvious paint accumulation or paint leakage. The straightness of the screen fan
The flatness of the screen fan
The distance between the pressing holes and the pressing tightness
This standard is under the jurisdiction of the Standard Design Institute of China Building Technology Development Center. This standard is drafted by Beijing Steel Window Factory. Testing tools and methods
Special testing instruments
Steel tape measure or special measuring toolsbzxZ.net
Measuring position: inner angle
Steel tape measure
Measuring position: 50~100mm from the end
Steel tape measure
Measuring position: 50~100mm from the end
Test assembly with hardware parts
Steel ruler, steel tape measure
Visual inspection, depth gauge
Feeler gauge, steel ruler, platform
Feeler gauge, steel ruler, platform
Steel tape measure, test assembly
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