Quality Control Department

At ASAHI, we put each rope through exhaustive testing by our Quality Control Team, to deliver a product with the best quality, strength &life. These include long series of physical test which are performed on raw material, work in-progress as well as the finished product. These pictures present our QUALITY CONTROL CENTRE where our Team works tirelessly, enabling us to maintain the quality paradigms and make ASAHI a synonym for quality. There is a brief sequence of various tests being executed at various stages of rope making.

Stage 1: Raw Material


Wire


Tensile Testing

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This is done as per IS-1608:2005 to test the Breaking load of the wire to determine its ultimate tensile strength.

Torsion Testing

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This test is performed as per the guidelines laid down in IS-1717:2012determine the ability of the wire to undergo plastic deformation during simple torsion in one direction.

Reverse Bend Test

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This test is performed as per the guidelines laid down in IS-1716:1985 to determine ability of the wire to undergo plastic deformation during reverse bending and thus determine the flexibility of the wire.

Wrapping Test

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This test is performed as per the guidelines laid down in IS-1716:1985 to determine ability of the wire to wrap itself over another material.

Adhesion Test

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This test is performed to determine the quality &strength of zinc coating on the wires

Galvanising Test

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This test is performed as per the guidelines laid down in IS-6745:1972 to determine the mass of Zinc Coating on the wires


Core

Fibre Core – Natural (Jute, Sisal, Manila) or Manmade (Polyolefin, Polyethene, Polypropylene etc.) is tested for various parameters such as its lay, diameter, lubrication, breaking strength etc., as per IS-1804:2004. These pictures present our QUALITY CONTROL CENTRE where our Team works tirelessly, enabling us to maintain the quality paradigms and make ASAHI a synonym for quality. There is a brief sequence of various tests being executed at various stages of rope making.
Steel Core (SC or WSC) / Independent Wire Rope Core (IWRC) – Wire for the core are selected as per the tensile, not exceeding the main wire. IWRC (7X7) or Strand core (1X7, 1X19, 1x36, 1X37) is constructed as per specifications laid down by BIS.


Stage 2: IN PROCESS - ROPE/STRAND


Constant checks are maintained both at the stranding stage and at the closing stage, so as to ensure diameter of the ropes are within the tolerance limits specified by BIS and high precision material is manufactured.

Direction and length of the lay is maintained both for strand as well as for the ropes and the limits are kept within the specification provided by BIS.

The possibility of the joints in a wire are kept to a minimum level & in no case more than one wire is joined in a length of 10 meters in the strands. The joints as far as possible are electrically butt-welded.

Both strands and ropes are constantly checked for any visual imperfection or deviations such as overlapping, loosening of wires/strands etc at the shop floor.

At all the stages the rope is thoroughly treated with suitable lubricants, which are as per IS 9182:1993 (Lubricants free from acidity alkalinity and having good adhesion to steel) to protect it from corrosion and lower down the internal friction among the wires, when it is put to use.

STAGE 3: FINISHED WIRE ROPE/STRAND


The finished goods are again tested for all physical parameters like its Diameter, Lay, and any other visual defects such as over lapping or loosening of wires or strands.

The performing test is carried out by un-laying 2 strands opposite to each other for approx. 2 rope lay lengths.

All our finished products (both wire strand & wire rope) is put to a destructive test to determine its breaking load and the reading decides the passing of the material

The finished goods are securely wound &338;packed on wooden reels or coiled so that the rope (when unwound) comes to its original shape & position. Moreover appropriate packaging of these reels and coils is ensured so as to avoid any possibility of transit damages.

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