Reverse:
Wires with a diameter not exceeding 6.00 mm shall be subjected to torsion inspection, and the number of torsion shall be in accordance with Table 1.
Wire diameter mm | Number of twists (not less than) | |
B, C level | Class D | |
≤2.00 | 20 | 18 |
>2.00-3.00 | 15 | 13 |
>3.00-4.00 | 12 | 8 |
>4.00-5.00 | 10 | 5 |
>5.00-6.00 | 8 | 3 |
Table 1
When twisting, the wire shall not have visible cracks and delamination on the surface within the specified number of twists.
Winding:
The wire is tested for winding according to Table 2. The surface of the sample after winding shall not be cracked or broken.
Wire level | Wire diameter d mm | Mandrel diameter mm | Number of windings |
B, C level | ≤6.00 | d | ≥2 |
Class D | ≤4.00 | ||
>4.00 | 2d |
Table 2
bending:
Wires with a diameter greater than 6.00 mm shall be subjected to bending inspection. The surface of the specimen after bending shall not be cracked or broken.
experiment method:
The inspection method, sampling quantity and test requirements of the steel wire inspection project shall comply with the requirements of Table 3.
Pilot projects | Number of samples per batch | Testing method | Test requirements |
Tensile test | Disk-by-disk, double-ended | GBT228 | |
Torsion test | Disk-by-disk, double-ended | GBT239 | The spacing between the chucks is 100 times the diameter of the steel wire. When the gap between the chucks is greater than or less than 100 times the diameter of the steel wire, the number of twists increases or decreases in proportion to the gap between the chucks. In this case, the number of twists should be converted into 100 times the diameter of the steel wire. |
Bending test | One-by-one, one end | Both ends of the sample are oriented in different directions Along the circle of R = 10 mm One arc bent 90° | |
Winding test | 10%, no less than 3, one end | GBT2976 |
table 3
Article from: Jinan Zhongchuang Industrial Test System Co., Ltd. Technology Department
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Elevator Machine Modernization
Elevator Machine Modernization, Elevator Traction Machine Modernization, Elevator Motor Modernization, Elevator Geared Machine Modernization, Elevator Gearless Machine Modernization
OTIS Elevator Traction Machine Modernization, Thyssen Elevator Traction Machine Modernization, KONE Elevator Traction Machine Modernization, Giant KONE Elevator Traction Machine Modernization, ThyssenKrupp Elevator Traction Machine Modernization, Schindler Elevator Traction Machine Modernization, XJ Schindler Elevator Traction Machine Modernization, Xizi OTIS Elevator Traction Machine Modernization, Mitsubishi Elevator Traction Machine Modernization, Shanghai Mitsubishi Elevator Traction Machine Modernization, Fujitec Elevator Traction Machine Modernization, Hitachi Elevator Traction Machine Modernization, Toshiba Elevator Traction Machine Modernization, Hyundai Elevator Traction Machine Modernization, LG Elevator Traction Machine Modernization, Sigma Elevator Traction Machine Modernization, Express Elevator Traction Machine Modernization, GUANGRI Elevator Traction Machine Modernization, FUJI Elevator Traction Machine Modernization, BLT Elevator Traction Machine Modernization, CANNY Elevator Traction Machine Modernization, SJEC Elevator Traction Machine Modernization, KOYO Elevator Traction Machine Modernization, IFE Elevator Traction Machine Modernization
Elevator Machine Modernization, Elevator Traction Machine Modernization, Elevator Motor Modernization, Elevator Geared Machine Modernization, Elevator Gearless Machine Modernization
CEP Elevator Products ( China ) Co., Ltd. , https://www.zjelevatorcontrolsystem.com