GB/T 7983-2013Conveyor belts -- Transverse flexibility (troughability) -- Test method (English PDF)

1 Scope

The standard provides for the determination of flexible conveyor belt (troughability) Test Method for Transverse, it can use a ratio F/L to represent.

This standard applies to textile and steel cord conveyor belt conveyor belt.

This standard does not apply to ISO 21183-1 [1] Light conveyor requirements.

Note. The lateral flexibility measured by this method is only indirectly related to the reciprocal of the flexural modulus ISO 178 [2] regulations. And does not consider the Three point and four-point bending

Flexible presentation of the differences, but it is considering bending strain and thickness of the sample.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 5753 Steel cord conveyor total thickness and cover thickness measurement method (GB/T 5753-2013, ISO 7590.

2009, IDT)

ISO 583 fabric conveyor belt and the total thickness of the layers with a thickness of the test method (Conveyorbeltswithatextile carcass-Totalbeltthicknessandthicknessofconstitutiveelements-Testmethods)

ISO 18573 conveyor test environment and conditioning time (Conveyorbelts-Testatmospheresandcondi- tioningperiods)

3 Symbol

The following symbols apply to this document.

F --- vertical deflection of the sample as a correction tape thickness, in millimeters (mm);

F1 --- vertical deflection of the sample, in millimeters (mm) (see Figures 1 and 2);

L --- length of the specimen when laid flat (equal to the full width of the conveyor belt to be tested), millimeters (mm);

D --- thickness of the specimen in millimeters (mm) (see FIG. 2).

Principle 4

Take some lateral full width of the tape (bandwidth L) as a sample, the sample will be hung up at both ends. Suspension should be facing and the bearing on the make

Located on the edge of the same horizontal plane ends.

Under the weight of the sample itself, to determine the lateral flexibility band (trough ability) by measuring the maximum deflection of the sample (F). In F/L ratio

Value to represent.

Means 5 (see FIG. 1)