Welded Wire Mesh Technology
|Cold Rolling||Welding||Bending & Cutting||Finished Mesh|
The raw material used for PRM is of low carbon steel from various
steel manufacturers, commonly known as wire rods. The raw material
grades are SAE 1008, SAE 1010, and SAE 1012 which has a percentage
of carbon in the range of 0.08 to 0.12.
Cold rolling is a metal working process in which metal is deformed
by passing it through rollers at a temperature below
Recrystallisation temperature. Cold rolling increases the yield
strength and hardness of a metal by introducing defects into the
metals crystal structure. These defects prevent further slip and
can reduce the grain size of the metal.
Straigtening & Cutting
Specialized machinery from Italy is utilised for straightening and
cutting process. The cold rolled wire rods in the coil form is
passed through pre set die and cartridge units (special sets for
different diameter wire rods) present in the straightening and
cutting machine, where the wire rods are first straightened and
then cut to set length (precision upto 2mm) automatically. The wire
rods can be cut to any size ranging from 0.8 Metre to 12 Metre with
a max tolerance of 2mm.
Welded steel fabric is manufactured with automatic welding
machines, where wires are welded together in square or rectangular
grids. The wires are welded by electric resistance in an automated
state of the art machine which controls welding parameters
precisely. All the settings for dimensions and welding are
programmable. The weld is formed by a controlled combination of
pressure, intensity and duration of electric current to develop
fusion of the wires. Welded steel fabric utilizes welded
intersections for bond and anchorage.
Bending & Cutting
Two separate machines from Schnell, Italy are available for cutting
and bending operation. The cutting machine is utilised for cutting
the finished meshes to desired dimension. It is a motorised unit,
capable of cutting meshes at a speed of 2 to 3 cut per second. The
bending machine available is used to bend the cut meshes to the
required shape (as required by design).
The machine is capable of bending sheet to any angle (Up to 180o).
Depending upon the design requirements, the sheets requiring
cutting and bending will be taken for this operation else the
meshes will be directly taken for despatch from the third process.
After the Bending and Cutting process comes the final stage in
manufacturing i.e, Finished Mesh which is nothing but the Final