Some standard content:
Engineering Construction Standard Full-text Information System
UDC 691.714. 028
.001.4
National Standard of the People's Republic of China
GB 5827.1—86
Inspecting regulation for solidshaped steel window
Issued on January 31, 1986
Implemented on November 1, 1986
Issued by the State Bureau of Technical Supervision
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Inspecting regulation for solidshaped steel window
Inspecting regulation for solidshaped steel window
This standard applies to the inspection and acceptance of ordinary solid steel window frames and sashes. 1 General provisions
1.1 Steel window profiles shall comply with the provisions of GB2597-81 "Hot-rolled window frame steel". UDC691.714.028 www.bzxz.net
.001.4
GB 5827.1-86
1.2 The basic size series of steel windows shall comply with the provisions of GB5826.2-86 "Basic size series of casement steel windows (25mm solid material)" and GB5826.3-86 "Basic size series of casement steel windows (32mm solid material)". 1.3 For explanation of terms, see Appendix A.
2 Technical requirements
Outline dimensions of steel window frames
Allowable deviations of width and height dimensions (see Table 1). 2.1.1
Width (B) and height (A)
<1500
Allowable deviation
Allowable length difference between two diagonals (see Table 2). Actual measured length of diagonal (L)
Allowable length difference
2.2 Frame and sash coordination
2.2.1 Frame and sash overlap 6 (see Figure 1, Table 3). Issued by the National Bureau of Standards on January 31, 1986
Engineering Construction Standard Full Text Information System
Second Grade
《2000
Third Grade
Third Grade
Third Grade
Implementation on November 1, 1986
Engineering Construction Standard Full Text Information System
Frame and Leaf Overlap
Frame and Leaf Fitting Clearance C1 on the Hinge Surface and Fitting Clearance C2 on Other Surfaces (See Figure 2, Table 4). L
Fitting Clearance
The window sash should be flexible to open and close, and should not have defects such as obstruction, inversion, and rebound. 2
The location of the installation holes for the hardware parts of steel windows should be accurate, so that the hardware parts can be installed flat and firmly to meet the use requirements. 2.2.5 Steel windows should be equipped with drainage holes and water-shedding plates. 2.3 Connection and appearance
2.3.1 Each riveted, welded and connected part should be firm and should not have defects such as false welding, fracture and looseness. Each bolt connection should be firm and should not have looseness.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2.3.2 The difference in the size of the window core grid should be less than or equal to 3mm. The difference in the size of the window frame grid should be less than or equal to 2mm. The offset of the position of two adjacent window cores should be less than or equal to 3mm.
2.3.3 The surface of the steel window should be flat and should not have appearance defects such as burrs, welding slag and obvious hammer marks. 2.3.4 Before dipping and applying anti-rust paint, the steel window should be degreased and rusted, and the paint layer should be uniform in thickness and should not have obvious defects such as paint accumulation and paint leakage. 3 Inspection rules
3.1 Before leaving the factory, the steel window should be sampled and inspected according to the contract number. When the batch is less than or equal to 300, 3% shall be sampled, but the total sampled quantity shall not be less than 5; when the batch is greater than 300, 2% shall be sampled, but the total sampled quantity shall not be less than 10. 3.2 Among the steel windows sampled for the first time, if the first-grade rate is lower than 90%, the sampled inspection shall be doubled. If the first-grade rate still does not reach 90%, the batch of products shall be inspected as second-grade products; if the second-grade rate still does not reach 90%, the batch of products shall be returned for repair. If the second-grade rate of the steel windows sampled for the first time does not reach 80%, the batch of products shall be returned for repair. 3.1. 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 8 items that meet the requirements, and second-grade products must have more than 6 items that meet the requirements (see Appendix B). 4.3.4.1. Before steel windows leave the factory, a product factory certificate shall be issued; each window shall have a "qualified" mark. 4.2 Steel windows should be wrapped firmly to facilitate lifting; it is strictly forbidden to stack heavy objects on windows. 4.3 When stacking steel windows, pads should be used to level them, and the vertical angle should not be less than 70°, and avoid contact with corrosive media. Engineering Construction Standards Full Text Information System
..com3
Engineering Construction Standards Full Text Information System
A.1 Blockage
Appendix A
Explanation of Steel Window Terms
(Supplement)
When the window sash is opened and closed normally, due to the fact that the axis lines of the two hinges are not straight, or the axis core is bent, the hinges (hinges) leaf pieces bite each other and encounter abnormal obstacles, causing the window sash to rotate inflexibly or have an intermittent stagnation state. A.2 Rebound
When the window sash is closed, due to insufficient window edge clearance or hinge (hinge) displacement and other reasons, the window sash has a phenomenon of self-rebound after closing. A.3 Reverse warping
When the window sash is closed, the upper end of the window sash should be close to the window frame before the lower end. If the lower end of the window sash is close to the window frame, but the upper end of the window sash cannot be close to the window frame due to warping, and there is still a gap, it is called reverse warping. A.4 False welding
The following situations are called false welding:
A.4.1 During arc welding, the position of the weld deviates from the center of the parent material joint seam, and the arc only has enough penetration depth for one side of the parent material. The joint seam is not actually welded but covered by weld meat or slag. During arc welding, the welding current is too small, the arc has no penetrating power, and only a strip of weld meat is piled up on the surface of the parent material. A.4.2
3 During flash resistance welding, the steel slag cannot be discharged, and the slag is sandwiched between the welds during top forging. A.4.3
A.4.4 During flash resistance welding, the melting time is too short, the temperature is not enough, and the top forging is not firm. A.4.5
During flash resistance welding, excessive melting and insufficient forging allowance result in forging without forging. A.5 Paint piling
The following situations belong to paint piling:
A.5.1 There is obvious sagging on the paint film surface, resulting in uneven paint film surface. A.5.2
There is paint accumulation and condensation on the paint film surface, resulting in an uneven surface. Engineering Construction Standard Full-text Information System
..com Engineering Construction Standard Full-text Information System
Project Classification
Engineering Construction Standard Full-text Information System
This Standard
Sequence Number
Appendix B
Inspection Items, Measuring Tools and Methods for Solid Steel Windows (Supplementary Parts)
Item Content
The welded and riveted joints of the four corners of the frame and leaf, hinges and braces
should be firm and free of defects such as false welding, breakage and looseness (excluding window cores)||tt ||Degreasing and rust removal
Difference in length of two diagonals
Frame and sash overlap 6
Hinge page fit clearance C1
Other frame and sash fit clearance C2
Height dimension deviation
Width dimension deviation
Opening and closing of sash
Accurate position of parts holes
Drain holes and water spouts
Bolt connections should be firm and not loose
Window core should not be loose
Inspection gauges and methods
Special inspection tools Or X-ray inspection
Steel tape measure or special measuring tool
Measurement position: inner angle
Depth gauge, caliper
1.5×50,2×50 plug
Measurement position: hinge page
1.5×50,1×50 plug
Measurement position: frame large surface
Steel tape measure
Measurement position: 50~100 from the end
Steel tape measure
Measurement position: 50~100 from the end
Visual inspection, manual test| |tt||Test assembly with hardware parts
Full text information system of engineering construction standards
Project classification
Additional instructions:
Serial number in this standard
Difference in size of window core grid<3
Difference in size of window frame grid≤2
Offset of adjacent window cores≤3
Diagonal hanging height of window sash 1~3
Difference in height of frame, support and intersection angle of frame and sash≤1
No burrs, welding slag and obvious hammer marks on the surface
(depth<0.5)
The paint surface is uniform, and there should be no obvious accumulation
of paint or paint leakage
Testing tools and methods
Steel ruler, steel tape measure
Measurement location: Window core web
Steel ruler, steel tape measure
Measurement location: Large surface of window frame
Steel ruler
Measurement location: Window core flange
Steel ruler, depth gauge
Depth gauge
Measurement location: Large surface of window frame, small surface of window sash
This standard is proposed by the Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China and is under the jurisdiction of the China Building Standard Design Institute of the China Building Technology Development Center.
This standard is drafted by the Machinery Management Bureau of the Ministry of Urban and Rural Construction and Environmental Protection, Liaoning Provincial Standardization Office, Hubei Provincial Standardization Research Institute, Shanghai Glass Machinery Factory, Shanghai Steel Window Factory, Shaanxi Steel Window Factory, and Beijing Steel Window Factory. The main drafters of this standard are Zheng Jinfeng, Mao Lirong and Guo Yingju. Engineering Construction Standards Full Text Information System
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.