Wire rope slings need to be tested in accordance with what testing standards for what items?

Wire rope slings to steel wire rope as raw materials, including galvanized steel wire rope, phosphate coated steel wire rope, stainless steel wire rope and glossy steel wire rope, etc., by hand or wire rope insertion set of mechanical insertion of braiding, wire rope pressure set of machine pressure of the wire rope sling of the rope buckle is known as the wire rope sling.

According to the "general purpose wire rope sling characteristics and technical conditions" GB/T16762-2009 requirements, the need for wire rope sling for the following test items: appearance quality, the distance between the two ends of the inner end of the pressed joints, the distance between the two ends of the end of the insertion of the braided end, the end of the end of the fittings, the length of the clasp, the length of the rope, the length of the rope sling, the breaking force and the marking and so on. Jiangsu Province Special Defense Center specializes in this area.

Wire rope sling when one of the following situations, should stop using, repair or scrap:

1. Wire rope broken 1 strand, or the surface steel wire abrasion up to more than 40% of the diameter of the steel wire, or the diameter of the steel wire rope reduced by more than 7%.

2. Wire rope kink deformation.

3. wire rope in a twist distance broken wire exceeds the standard (Schedule 9): (1) when the phenomenon of wire breakage occurs centrally in the local, in the length of 6 times the diameter of a section of wire breakage occurs in one strand, up to the provisions of the number of wire breakage of half of the number of scrap should be scrapped. (2) wire rope corrosion or wear, the number of scrapped broken wire should be multiplied by the reduction factor (Schedule 9).

4. Wire rope localized visible broken wire damage (more than three broken wire gathered together).

5. Broken wires appear on the surface of the eye of the rope, or broken wires are concentrated in the metal casing, near the socket, and in the socket connection rope strand.

6. Steel wire rope due to the electric arc caused by the melting of the wire rope, molten metal liquid immersion, or a long period of exposure to high temperatures caused by the loss of strength.

7. Severe compression and abrasion at the socket; damage to the metal sleeve (e.g. cracks, severe deformation, corrosion) or reduction in diameter to 95% of the original diameter.

8. The metal sleeve of the fixed connection at the rope end or the part of the socket connection slips out.