Does the new wire rope need to be tested? The reason why we inspect the wire rope is to ensure the safety of use, and the new wire rope may also have defects or damages during the production or transportation process, so the answer is “yes”.
1. Purpose
The safety factor of the wire rope is an important indicator to measure the safety performance and safety status of the wire rope. In order to ensure the safety of the wire rope, when selecting and using the wire rope, it is necessary to ensure the range of the safety factor of the wire rope. New wire rope for laboratory testing is mainly to check whether the physical and mechanical properties of the new rope will meet the use requirements or not; then the safety factor can be calculated according to the test results to see if it can reach the specified safety factor.
2. Items
Wire rope testing items mainly include twisting, wire diameter, rope warp, tensile strength, oiling, repeated bending tests, torsion times, whole rope breaking, LMA, LF etc. It is worth mentioning that steel wire rope friction pads should also be tested. The specific items include density, hardness, modulus of elasticity for tension, elongation at break, compressive modulus, bending stress, bending strength, compressive strength, impact strength, tensile strength, abrasion loss, friction coefficient, wear rate, abrasion, etc.
Rope Diamater(mm)
|
Number of sling(n)
|
Vertical angle(α/°)
|
Vertical angle(α/°)
|
|
1
|
2
|
4
|
30
|
45
|
60
|
30
|
45
|
60
|
|
6*19+1 Allowable lifting weight of wire rope/t
|
9.0
|
0.6
|
1.3
|
2.6
|
1.1
|
0.9
|
0.6
|
2.2
|
1.8
|
1.3
|
11.0
|
0.9
|
1.7
|
3.5
|
1.5
|
1.2
|
0.9
|
3.0
|
2.5
|
1.7
|
12.0
|
1.1
|
2.3
|
4.5
|
2.0
|
1.6
|
1.1
|
3.9
|
3.2
|
2.3
|
14.0
|
1.4
|
2.9
|
5.8
|
2.5
|
2.0
|
1.4
|
5.0
|
4.1
|
2.9
|
16.0
|
1.8
|
3.5
|
7.1
|
3.1
|
2.5
|
1.8
|
6.1
|
5.0
|
3.5
|
18.0
|
2.6
|
5.1
|
10.2
|
4.4
|
3.6
|
2.6
|
8.8
|
7.2
|
5.1
|
20.0
|
3
|
6.0
|
12.0
|
5.2
|
4.2
|
3.0
|
10.4
|
8.5
|
6.0
|
22.0
|
3.5
|
7.0
|
13.9
|
6.0
|
4.9
|
3.5
|
12.0
|
9.8
|
7.0
|
24.0
|
4
|
8.0
|
16.0
|
6.9
|
5.6
|
4.0
|
13.8
|
11.8
|
8.0
|
26.0
|
4.5
|
9.1
|
18.2
|
7.9
|
6.4
|
4.5
|
15.7
|
12.9
|
9.1
|
28.0
|
5.1
|
10.3
|
20.5
|
8.9
|
7.2
|
5.1
|
17.8
|
14.5
|
10.3
|
30.0
|
5.8
|
11.5
|
23.0
|
10.0
|
8.1
|
5.8
|
19.9
|
16.3
|
11.5
|
32.0
|
7.1
|
14.2
|
28.4
|
12.3
|
10.0
|
7.1
|
24.6
|
20.1
|
14.2
|
34.0
|
8.6
|
17.2
|
34.4
|
14.9
|
12.1
|
8.6
|
29.8
|
24.3
|
17.2
|
4. Inspection Methods:
Portable wire rope tester
The method of manual inspection on wire rope judges its pass rate by inspecting its allowable lifting weight, and there is a more convenient and accurate method to judge the quality of the new wire rope, that is to use TST wire rope flaw detector for inspection.
According to the connection between the sensor and wire rope, all kinds of flaws such as LF, LMA, tensile force, elongation at break, etc. on the wire rope can be detected systematically by the TST flaw inspection system. And then a specific inspection report can be automatically generated to help the customers analyze the status of the wire rope.
prev: What is the Development Prospect of Wire Rope Flaw Detectors
next: Introduction of Mine Products
